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Home My WebLink About9-26-22 TC BOT Mtg Packet TOWN OF WESTLAKE TOWN COUNCIL/WESTLAKE ACADEMY BOARD OF TRUSTEES MEETING AGENDA 1500SOLANABLVD,BUILDING7,SUITE7100,COUNCILCHAMBER WESTLAKE, TX 76262 September 26, 2022 3:00 P.M. CLOSED EXECUTIVE SESSION 4:00 P.M. WORK SESSION 5:00 P.M. REGULAR MEETING The Town Council of the Town of Westlake serves as the governing Board for Westlake Academy. This agenda may contain both municipal and Westlake Academy items, which will be clearly identified. The open portion of the meeting will begin at 0 p.m. for Work Session and 5:00 p.m. for Regular Session on September 26, 2022. In an effort of transparency, this meeting will be viewable to the public via Live Stream and also available for viewing after the meeting. In an effort of meeting efficiency, any residents wishing to speak on action items must submit a speaker request form to the Town Secretary. CLOSED EXECUTIVE SESSION (3:00 P.M.) 1.Call to order and announce closed session item(s). 2.The Town Council will conduct a closed session pursuant to Texas Government Code, annotated, Chapter 551, Subchapter D for the following: a.Section 551.074(a)(1): Deliberation Regarding Personnel Matters – to deliberate the appointment, employment, evaluation, reassignment, duties, of a public officer or employee: -Town Manager WORK SESSION – Call to Order (4:00 P.M.) 3.Discuss and receive a presentation from Michael Beaty regarding Entrada REGULAR MEETING – Call to Order (5:00 P.M.) 4.PLEDGE OF ALLEGIANCE 5.CITIZEN/PARENT COMMENTS: This is an opportunity for citizens to address the Town Council or Board of Trustees on any matter, whether or not it is posted on the agenda. Any residents wishing to speak on action items must submit a speaker request form to the Town Secretary. (Best practice is to submit the speaker form prior to the start of the meeting.) If your questions are satisfied, you may choose not to speak. Individual citizen comments are normally limited to three (3) minutes; however, time limits can be adjusted by the presiding officer. The presiding officer may ask the citizen to hold their comment on an agenda item if the item is posted as a Public Hearing. The Town Council and Board of Trustees cannot by law take action nor have any discussion or deliberations on any presentation made at this time TC/BOTAgenda–09/26/2022 Page 1 of 3 concerning an item not listed on the agenda. The Town Council and Board of Trustees will receive the information, ask staff to review the matter, or an item may be noticed on a future agenda for deliberation or action. ITEMS OF COMMUNITY INTEREST: Mayor and Council Reports on Items of Community Interest pursuant to Texas Government Code Section 551.0415 the Town Council may report on the following items: (1) expression of thanks, congratulations, or condolences; (2) information about holiday schedules; (3) recognition of individuals; (4) reminders about upcoming Town Council events; (5) information about community events; and (6) announcements involving imminent threat to public health and safety. 6. CONSENT AGENDA: All items listed below are considered routine by the Town Council and/or Board of Trustees and will be enacted with one motion. There will be no separate discussion of items unless a Council/Board Member or citizen so requests, in which event the item will be removed from the general order of business and considered in its normal sequence. a. Consider approval of the Joint Town Council/Board of Trustees meeting minutes from the following meetings: September 12, 2022 Regular Meeting b. Consider approving WA Resolution 22-22 approving an amended Westlake Academy Mission Statement 7. REPORTS: Reports are prepared for informational purposes and will be accepted as presented. (there will be no presentations associated with the report items) There will be no separate discussion unless a Town Council Member requests that report be removed and considered separately a. Receive a third quarter Town of Westlake financial and investment report REGULAR AGENDA ITEM(S) 8.Presentation and Discussion regarding the Public Art Competition Committee 9. Consider approving Resolution 22-63 approving the 2023 Town Council Board of Trustee meeting calendar; and take appropriate action 10. Consider adopting Ordinance 954 amending Chapter 26, Article II, Division 1, Section 67 for the Planning and Zoning Commission by expanding the Commission from 5 to 7 regular voting members and eliminating alternate Commission positions and authorizing the Mayor to appoint the Chair and Vice Chair of the Commission; and take appropriate action 11. Consider adopting Ordinance 953 amending Westlake Engineering Design Standards and Construction Drawings by revising Chapter 36, Article I to X of the Code of Ordinances; and take appropriate action TC/BOTAgenda–09/26/2022 Page 2 of 3 TOWN COUNCIL AGENDA ITEM Workshop - Discussion Item Monday, September 26, 2022 TOPIC: Discuss and receive a presentation from Michael Beaty regarding Entrada STAFF: Ron Ruthven, Planning and Development Director STRATEGIC ALIGNMENT Vision, Value, Mission Perspective Strategic Theme & Results Outcome Objective High Quality Planning, Design & Development - We are a desirable Planned / Responsible Preserve Desirability N/A well planned, high-quality Development & Quality of Life community that is distinguished by exemplary design standards. SUMMARY Entrada developer, Mike Beaty, will present potential amendments to the Entrada development plan among other Entrada specific items and will discuss and answer Council questions regarding the Entrada development. ATTACHMENTS Potential Amended Development Plan for Discussion Town Council Presentation Page 1 of 1 B LOCK B H OTEL JV B LOCK B D ETAILED S ITE P LAN B LOCK B S ITE P LAN I N P ROGRESS E NTRADA O VERALL S ITE P LAN P HASE II H IGHLIGHTED E NTRADA P HASE II R ESTAURANT B UILDING N OMENCLATURE C URRENT P LAT D AHLIAS FINISH OUT PLANS T ENANT S PACE 1 AND 2 IN R EST A R EST B-C-D C URRENT S HELL C ONFIGURATION P EDESTRIAN B RIDGE P ATIO S PACE R EPOSITORY L OCATION IN W ESTLAKE Town Council Meeting Monday, September 26, 2022; 5:00 pm Town Westlake Town Hall, Solana Terrace-Bldg.7, Suite 7100 Council/Board Stroll Westlake’s Neighbors Night Out Thursday, September 29, 2022; 5:30-7:30 pm Marriott Westlake of Trustees Town Council Meeting Monday, October 3, 2022; 5:00 pm Westlake Town Hall, Solana Terrace-Bldg.7, Suite 7100 Item # – Items Coffee & Conversation of Community Tuesday, October 4, 2022; 8-9:30 am Interest Sip Stir Coffee, Westlake World Teacher’s Day Wednesday, October 5, 2022 Fall Concert #2: Vocal Trash Thursday, October 6, 2022; 6:30-8:00 pm 1300 Solana Blvd, Westlake Fall Cleanup Saturday, October 8, 2022; 9-11 am 1600 Solana Blvd, Westlake Planning & Zoning Meeting Monday, October 10, 2022; 5:00 pm Westlake Town Hall, Solana Terrace-Bldg.7, Suite 7100 Metroport Chamber Luncheon Wednesday, October 12, 2022; 11 am-1 pm Texas Motor Speedway Westlake Classic Car Show Saturday, October 15, 2022; 11-4 pm 1600 Solana Blvd, Westlake Fall Concert #3: Windy City Thursday, October 20, 2022; 6:30-8:00 pm 1300 Solana Blvd, Westlake Monster Mash Saturday, October 22, 2022; 5-7:30 pm Westlake Academy Fieldhouse and portables Town Council Meeting Monday, October 24, 2022; 5:00 pm Westlake Town Hall, Solana Terrace-Bldg.7, Suite 7100 Community Blood Drive Saturday, October 29, 2022; 9 am- 3 pm Westlake Fire-EMS Station Items to mention: Giving Day results Council Photos st 1 concert TOWN OF WESTLAKE TOWN COUNCIL/WESTLAKE ACADEMY BOARD OF TRUSTEES MEETING MINUTES 1500 SOLANA BLVD, BUILDING 7, SUITE 7100, COUNCIL CHAMBER WESTLAKE, TX 76262 September 12, 2022 4:00 P.M. CLOSED EXECUTIVE SESSION 5:00 P.M. REGULAR MEETING PRESENT: Mayor Sean Kilbride, Council/Board of Trustee Members Mayor Pro Tem David Quint, Tim Shiner, Chandrika Dasgupta, Anna White, Kim Greaves OTHERS PRESENT: Head of School Sean Wilson, Acting Town Manager Jarrod Greenwood, Town Secretary Amy M. Piukana, Academy Attorney Janet Bubert, Assistant Town Manager Troy Meyer, Finance Director Amber Karkauskas, Director of Information Services Jason Power, Director of Human Resources Sandy Garza, Director of Communications Jon Sasser, PYP Principal Maxwell Ituah CLOSED EXECUTIVE SESSION (4:00 P.M.) 1. Call to order and announce closed session item(s). 2. The Town Council will conduct a closed session pursuant to Texas Government Code, annotated, Chapter 551, Subchapter D for the following: a. Section 551.074(a)(1): Deliberation Regarding Personnel Matters – to deliberate the appointment, employment, evaluation, reassignment, duties, of a public officer or employee: - Town Manager REGULAR MEETING – Call to Order (5 P.M.) 3. PLEDGE OF ALLEGIANCE – 4. CITIZEN/PARENT COMMENTS: This is an opportunity for citizens to address the Town Council or Board of Trustees on any matter, whether or not it is posted on the agenda. Any residents wishing to speak on action items must submit a speaker request form to the Town Secretary. (Best practice is to submit the speaker form prior to the start of the meeting.) If your questions are satisfied, you may choose not to speak. Individual citizen comments are normally limited to three (3) minutes; however, time limits can be adjusted by the presiding officer. The presiding officer may ask the citizen to hold their comment on an agenda item if the item is posted as a Public Hearing. The Town Council and Board of Trustees cannot by law take action nor have any discussion or deliberations on any presentation made at thistime concerning an item not listed on the agenda. The Town Council and Board of Trustees will receive the information, ask staff to review the matter, or an item may be noticed on a future agenda for deliberation or action. TC/BOT Minutes– 09/12/2022 Page 1of 4 5.ITEMS OF COMMUNITY INTEREST:Mayor and Council Reports on Items of Community Interest pursuant to Texas Government Code Section 551.0415 the Town Council may report on the following items: (1) expression of thanks, congratulations, or condolences; (2) information about holiday schedules; (3) recognition of individuals; (4) reminders about upcoming Town Council events; (5) information about community events; and (6) announcements involving imminent threat to public health and safety. 6. CONSENT AGENDA: All items listed below are considered routine by the Town Council and/or Board of Trustees and will be enacted with one motion. There will be no separate discussion of items unless a Council/Board Member or citizen so requests, in which event the item will be removed from the general order of business and considered in its normal sequence. a. Consider approval of the Joint Town Council/Board of Trustees meeting minutes from the following meetings: August 29, 2022 Regular Meeting 7. REPORTS: Reports are prepared for informational purposes and will be accepted as (there will be no presentations associated with the report items) There will be no separate presented. discussion unless a Town Council Member requests that report be removed and considered separately a. Receive a third quarter Westlake Academy financial report – b. Receive a Staff Retention and Turnover Report – c. Receive a Back-to-School Report – d. Receive an Enrollment Report – e. Receive a Data Software Assessment Report – th f. Receive a 100 Day Report – WESTLAKEACADEMY - AGENDA ITEM(S) 8. Presentation and discussion of State Assessment Results for 2022 9. Presentation and recognition of Westlake Academy’s 2022 AP Scholars and the 2022 recipients of the College Board National Recognition Program. TC/BOT Minutes– 09/12/2022 Page 2of 4 10. Consider amending and adopting Westlake Academy’s Mission Statement; and take appropriate action 11. Discuss a proposed Social Media Policyrelating to Bullying TC/BOT Minutes– 09/12/2022 Page 3of 4 12. TAKE ANY ACTION, IF NEEDED, FROM EXECUTIVE SESSION ITEMS. 13. COUNCIL RECAP/STAFF DIRECTION. 14. FUTURE AGENDA ITEMS: These items have been discussed by Town Council and scheduled to be placed on future Council Agendas allowing for adequate time for staff preparation on the agenda item. Future Agenda Items to be discussed: a. No items are scheduled for this meeting Future Agenda Items Already Discussed and Scheduled: a. Council discuss and consider requiring a Community Engagement Committee (Dasgupta 7/21/22) 15. ADJOURNMENT Signed by: Sean Kilbride, Mayor and President Board of Trustees Attested by: Amy M. Piukana, Town Secretary TC/BOT Minutes– 09/12/2022 Page 4of 4 BOARD OF TRUSTEESAGENDA ITEM Regular Meeting -Consent Item Monday, September 26, 2022 TOPIC:Consider approval of a resolution to amendWestlake Academy’s Mission Statement STAFF:Sean Wilson, Head of School STRATEGIC ALIGNMENT Outcome Vision, Value, MissionPerspectiveCurriculum Objective Mission: Westlake Academy is an IB World School whose mission is to provide students with an Strengthen our Academic internationally PYP / MYP / DP Westlake Operations minded education of Academy Culture the highest quality, so they are well- balanced life-long learners. SUMMARY At the September 12, 2022,Town Council meeting, the Council/Board of Trusteesunanimously voted to update Westlake Academy’s mission by motionto the following “Westlake Academy is an IB Continuum School where students become compassionate, life-long learners through an internationally-minded, balanced education that empowers students to contribute to our interconnected world.” A proposed resolutionhas been presented for consent approval of this action. The Academy’smission statement reflectsthe work it hopes to achieve for all students, codifying that we envision studentsas “compassionate, life-long learners.”We expect our studentsand Page 1of 2 employees to exemplify the curiosity of learning in all aspects of development and growth, contributing to “our interconnected world.” COUNCILACTION/OPTIONS 1. Motion to approve WA Resolution 22-22, as presented. 2. Motion to amend WA Resolution 22-22, with the following modifications... 3. Motion to deny or take no action. STAFFRECOMMENDATION The staff recommends the approval of the proposed resolution. FISCAL/SERVICELEVEL IMPACT ON COMMUNITY Project Cost/Funding Amount: None Funding Source: N/A Contract: No Forms: N/A Page 2 of 2 WESTLAKE ACADEMY RESOLUTION 22-22 A RESOLUTION OF THE WESTLAKE ACADEMY BOARD OF TRUSTEES APPROVING THE AMENDMENTOF THE MISSION STATEMENT. WHEREAS, Westlake Academyis focused to connect the international mindedness and the International Baccalaureate Learner Profiles to the curriculum across the entire Organization; and WHEREAS, Westlake Academy adopts the new Mission Statement to be utilized for all approaches to teaching and learning; and WHEREAS, the Board of Trustees finds that the passage of this Resolution is in the best interest of the citizens of Westlake as well as the students, their parents, and faculty of Westlake Academy. NOW, THEREFORE, BE IT RESOLVED BY THE BOARD OF TRUSTEES OF WESTLAKE ACADEMY: SECTION 1:That, all matters stated in the recitals hereinabove are found to be true and correct and are incorporated herein by reference as if copied in their entirety. SECTION 2: That, the Board of Trustees of Westlake Academy, hereby approves the amended graduation policy attached to this resolution as Exhibit “A”. SECTION 3: If any portion of this resolution shall, for any reason, be declared invalid by any court of competent jurisdiction, such invalidity shall not affect the remaining provisions hereof and the Council hereby determinesthat it would have adopted this Resolution without the invalid provision. SECTION 4:That this resolution shall become effective from and after its date of passage. th PASSED AND APPROVED ON THIS 26DAY OF SEPTEMBER 2022. ___________________________________ Sean Kilbride, President Resolution WA 22-22 Page 1 of 3 ATTEST: ___________________________________________________________________ Amy M. Piukana, Board Secretary Sean Wilson, Head of School APPROVED AS TO FORM: ________________________________ Janet S. Bubert or L. Stanton Lowry, School Attorney Resolution WA 22-22 Page 2 of 3 EXHIBIT A Mission Statement Westlake Academy is an IB Continuum School where students become compassionate, life-long learners through an internationally minded, balanced education that empowers students to contribute to our interconnected world. Resolution WA 22-22 Page 3 of 3 TOWN COUNCIL AGENDA ITEM Regular Meeting - Report Monday, September 26, 2022 TOPIC: Quarterly Financial Dashboard and Analysis and Investment Report for the quarter ended June30, 2022 STAFF: Amber Karkauskas, Director of Finance STRATEGIC ALIGNMENT Vision, Value, Mission Perspective Strategic Theme & Results Outcome Objective Exemplary Service & Governance Increase - We set the standard by delivering Transparency, Fiscal Responsibility Fiscal Stewardship unparalleled municipal and Accessibility & educational services at the lowest Communications cost. SUMMARY rd The 3 quarter Financial Dashboard for FY22 is attached for your review. This report reflects the rd audited financials from the previous year, both the adopted and revised budgets with 3quarter allocations, the current actual revenues and expenditures, and the resulting variances as of June 30, 2022. On each individual fund’s report, you maysee a “M” or a“%” beside several revenue line items. The “M” indicates the line-items are typically accrued, and the revenue hasn’t been received yet. Instead of using this explanation and reporting as a budget that has under-performed, the number of months of receipts has beenused to calculate the YTD budget. Several of the Town’s revenues are not received evenly throughout the year; therefore, we are calculating the YTD budget amount based on the percentage (“%”) of the revenue received in the prior year for the same period. We feel this is a more normalized approach to examine the current year revenue. A summary is presented at the bottom of each fund page indicating the net revenues over (under) expenditures along with the projected ending fund balances for the Adopted Budget, Revised Budget, YTD Budget, and the YTD Actuals. Page 1 of 2 The following Dashboard Analysis narrative is color coded and corresponds to the specific line- item on the “Dashboard” report. All “cautionary” and “critical” variances, in addition to any excessive “positive” variances, are described in the narrative and include the percentage and variance corresponding to the financial report. In addition to the quarterly financial reports, a quarterly investment report is attached. The Texas Public Funds Investment Act (PFIA) provides guidance for investment activities for Texas Governments. Management of the Town’s investments is governed by the Investment Policy which is adopted by the Town Council annually. The most recent Policy was adopted on August 29, 2022. COUNCILACTION/OPTIONS Council is expected to review and accept these reports as presented. If there is any need for follow-up discussions and/or questions, Council should request the report be removed from Reports and considered separately. STAFF RECOMMENDATION Staff encourages Council’s review of the presented municipal 3rd quarter financial and investment reports. FISCAL/SERVICELEVEL IMPACT TO COMMUNITY Project Cost/Funding Amount: N/A Funding Source: General Fund Contract: No Forms: N/A Service Levels:There is not impact to service delivery. DEVELOPMENT/MOBILITYIMPACT TO COMMUNITY Westlake Academy:N/A Comprehensive Plan: N/A Cost RecoveryAnalysis: N/A Traffic Impact: N/A ATTACHMENTS Quarterly Financial Dashboard and Analysis for period ending June 30, 2022 for the following funds: General Fund Visitors Association Fund Utility Fund Quarterly Investment Report Page 2 of 2 General Fund Quarterly Financial Dashboard Quarter Ended6/30/2022 FY 2022 FY 2021 REVENUES AND OTHER SOURCES PY ActualsADOPTEDREVISEDAllocationYTD ActualsPercent of Over (M) Based on number of months of receipts throughAnnualAnnualChangeof EstimatedthroughYTD Revised(Under) (%) Based on same % as prior year 3rd QuarterBudgetBudgetAmountYTD Budget3rd QuarterBudgetBudget 7 months MGeneral Sales Tax $ 3,496,676$ 4,500,000$ 7,125,000$ 2,625,000$ 5,937,500$ 4,991,33684%$ (946,164) 97% %Property Tax 1,953,764 1,705,163 1,705,163 - 1,691,004 1,737,844103% 46,840 77% %Franchise Fees 567,961 942,125 532,225 (409,900) 401,011 370,50992% (30,502) Permits and Fees Misc 266,912 213,563 356,563 143,000 267,422 418,716157% 151,294 Permits and Fees Bldg 1,467,394 2,567,656 1,696,179 (871,477) 1,272,134 1,719,292135% 447,157 Fines & Forfeitures 413,703 475,600 474,500 (1,100) 355,875 379,613107% 23,738 Misc Income 38,653 316,438 75,250 (241,188) 56,438 70,577125% 14,139 Total Revenues 8,205,062 10,720,545 11,964,880 1,244,335 9,981,384 9,687,88797% (293,497) Transfer In - 68,000 150,000 82,000 - -100% - Total Revenues and Other Sources $ 8,205,062$ 10,788,545$ 12,114,880$ 1,326,335$ 9,981,384$ 9,687,88797%$ (293,497) RevenueLegend PositiveCautiousNegative •greater than •between •less than 90%70% -90%70% FY 2022 FY 2021 PY ActualsADOPTEDREVISEDAllocationYTD ActualsPercent of Over EXPENDITURES AND OTHER USES throughAnnualAnnualChangeof EstimatedthroughYTD Revised(Under) 3rd QuarterBudgetBudgetAmountYTD Budget3rd QuarterBudgetBudget Payroll, Taxes, Insurance, Retirement$ 3,899,862$ 5,233,849$ 5,645,875$ 412,026$ 4,273,862$ 4,047,80095%$ (226,063) Operations & Maintenance 3,259,886 4,836,882 4,939,895 103,013 3,716,491 3,119,45384% (597,038) Total Expenditures 7,159,748 10,070,731 10,585,770 515,039 7,990,353 7,167,25390% (823,101) Transfer Out 75,0004,000,0004,000,000 - 4,000,000 4,100,000103% 100,000 Total Expenditures and Other Uses $ 7,234,748$ 14,070,731$ 14,585,770$ 515,039$ 11,990,353$ 11,267,25394%$ (723,101) Expenditure Legend PositiveCautiousNegative •less than •between •greater than 100%101% -110%110%E XEMPLARY G OVERNANCE Town Officials, both Elected and Appointed, exhibit FY 2022 FY 2021 Respect, Stewardship, Vision, PY ActualsADOPTEDREVISEDAllocationYTD Actuals SUMMARY and Transparency throughAnnualAnnualChangeof Revisedthrough 3rd QuarterBudgetBudgetAmountYTD Budget3rd Quarter Total Revenues & Other Sources $ 8,205,062$ 10,788,545$ 12,114,880 1,326,335$ 9,981,384$ 9,687,887 S ERVICE E XCELLENCE Total Expenditures & Other Uses 7,234,74814,070,73114,585,770 515,03911,990,35311,267,253 Public Service that is Net Change to Fund Balance $ 970,314$ (3,282,186)$ (2,470,890) 811,296$ (2,008,969)$ (1,579,366) Responsive and Professional, while Beginning Fund Balance 14,252,03615,739,33315,739,333 - 15,739,333 15,739,333 balancing Efficiency, Ending Fund Balance 15,222,350 12,457,147 13,268,443 811,296 13,730,364 14,159,967 Effectiveness and Restricted Funds 657,776 298,560 1,011,684 713,124 1,011,684 1,011,684 Financial Unrestricted Fund Balance$ 14,564,574$ 12,158,588$ 12,256,759 98,171$ 12,718,680$ 13,148,283 Stewardship Total Operating Expenditures$7,159,748$10,070,731$10,585,770$7,990,353$7,167,253 Daily Operating Cost 19,616 27,591 29,002 21,891 19,636 # of Operating Days Unrestricted742441423581670 Town of Westlake Dashboard Analysis for Quarter Ended 06/30/22 G ENERAL F UND TOTAL REVENUES AND OTHER SOURCES $ 10,788,545 Adopted Budget $12,114,880 Revised Budget $9,981,384 YTD Budget $9,687,887 YTD Actual 97% YTD Budget % $ (293,497) Over (Under) Budget GENERAL SALES TAX $ 4,500,000 Adopted Budget $ 7,125,000Revised Budget $ 5,937,500YTD Budget (7months) $ 4,991,336YTD Actual (7 months) 84%YTD Budget % $ (946,164)Over(Under) Budget Sales and use tax revenues are received from the Texas Comptroller two months in arrears. PROPERTY TAX $ 1,705,163 Adopted Budget $1,705,153Revised Budget $ 1,691,004YTD Budget $ 1,737,844YTD Actual 103%YTD Budget % $ 46,840Over(Under) Budget Revenue in this category is not distributed evenly over the fiscal year and is subject to property holders’ protests to the district’s Appraisal Review Board (ARB), thus delaying some payments. The YTD budget is calculated on the prior year percentage of revenue collected in the same period. Page 1of 5 Town of Westlake Dashboard Analysis for Quarter Ended 06/30/22 G ENERAL F UND FRANCHISE FEES $ 942,125 Adopted Budget $ 532,225Revised Budget $ 401,011YTD Budget $ 370,509YTD Actual 92%YTD Budget % $ (30,502)Over(Under) Budget Receiptsfor each quarter are typically received 4-6 weeks after the quarter ends, resulting in an underbudget variance at this time. The YTD budget is calculated on the prior year percentage of revenue collected in the same period. PERMITS AND FEES -MISCELLANEOUS $ 213,563 Adopted Budget $ 356,563Revised Budget $ 267,422YTD Budget $ 418,716YTD Actual 157%YTD Budget % $ 151,294Over(Under) Budget This category is comprised of revenues fromseveral different departments to include General Services, Reforestation Tree Escrow, Engineering Review, Development fees, and EMS Revenue, and therefore revenue is not evenly distributed over thefiscal year.The actuals have exceeded budget mainly due to inspection feesfor Westlake Ranch which werereceived earlier than anticipated as well as higher development feerevenues which were budgeted conservatively due to the pandemic. Reforestation revenues were also higher than anticipated for the year. PERMITS AND FEES – BUILDING $ 2,567,656 Adopted Budget $ 1,696,179Revised Budget $ 1,272,134YTD Budget $ 1,719,292YTD Actual 135%YTD Budget % $ 447,157Over(Under) Budget Revenues have exceeded budget due to additional permits issued for Granada, Quail Hollow and The Knolls at Solana on the single-family residential side, but primarily the 7 home and 10 condominium issuances were the main contributor (additionally, $190k was collected in lot fees for the Westlake Academy Expansion, which is recorded via Economic Development and not in the General Fund). On the commercial side, additional remodel permits were issued for Solana Plaza/Terrace, Fidelity, and QuickTrip. Page 2of 5 Town of Westlake Dashboard Analysis for Quarter Ended 06/30/22 G ENERAL F UND FINES AND FORFEITURES $ 475,600 Adopted Budget $ 474,500Revised Budget $355,875YTD Budget $ 379,613YTD Actual 107%YTD Budget % $ 23,738Over(Under) Budget This category pertains to Court-related revenues and thus are not distributed evenly over the fiscal year.The FY22 budget planning was conservative during COVID-19 with expectations of less travel. The positive variance is due to improved pandemic conditions resulting in an increase of road traffic. MISCELLANEOUS INCOME $ 316,438 Adopted Budget $ 75,250Revised Budget $ 56,438YTD Budget $ 70,577YTD Actual 125%YTD Budget % $ 14,139Over(Under) Budget The Miscellaneous Income category is comprised of revenues from six different departments: General Services, Fire Department, Municipal Court, Public Works, Facilities and Communications. It includes items such as mixed beverage tax, interest income, contributions, donations, facility rentals, insurance refunds, etc. This income is not distributed evenly over the fiscal year. TRANSFERS IN $ 68,000 Adopted Budget $ 150,000Revised Budget $ -YTD Budget $ -YTD Actual -YTD Budget % $ -Over(Under) Budget This category is comprised of a transfer in from the Utility Fund based on the forecasted Fort Worth Impact Fees on new home construction starts and will be posted at fiscal year- end based on actuals receipts. Page 3of 5 Town of Westlake Dashboard Analysis for Quarter Ended 06/30/22 G ENERAL F UND TOTAL EXPENDITURES AND OTHER USES $ 14,070,731 Adopted Budget $14,585,770 Revised Budget $11,990,353 YTD Budget $11,267,253 YTD Actual 94% YTD Budget % $(723,101)Over (Under) Budget PAYROLL AND RELATED $ 5,233,849 Adopted Budget $ 5,645,875Revised Budget $ 4,273,862YTD Budget $ 4,047,800YTD Actual 95%YTD Budget % $ (226,063)Over(Under) Budget This cost is affected by employee taxes and insurances costs and will fluctuate with staff requirements and selections during the year. Currently there are also savings fromunfilled positions. OPERATIONS & MAINTENANCE $ 4,836,882Adopted Budget $ 4,939,895Revised Budget $ 3,716,491YTD Budget $ 3,119,453YTD Actual 84%YTD Budget % $ (597,038)Over(Under) Budget The Operations and Maintenance category is comprised of multipledepartments and expenditure classifications and is not distributed evenly over the fiscal year. Most of the negative variances represent less services expensed through this period than anticipated, much of which relates to engineering & consultantcosts due to slowed development activity. The total of supplies and travel and training expenditures were also underbudget through Q3. TRANSFERS OUT $ 4,000,000 Adopted Budget $ 4,000,000Revised Budget $ 4,000,000 YTD Budget $ 4,100,000YTD Actual 103%YTD Budget % $ 100,000Over(Under) Budget Page 4of 5 Town of Westlake Dashboard Analysis for Quarter Ended 06/30/22 G ENERAL F UND Budgeted interfund transfers have been posted as follows: o$500kto Fund 220 VisitorAssociation; o$1.1mto Fund 410 Capital Projects(includes moving restricted funds for open space); o$1.5m to Fund 600 GF Maintenance/Replacement; and o$1m to Fund 605 GF Vehicle Maintenance/Replacement. Page 5of 5 Visitors Association Fund Quarterly Financial Dashboard Quarter Ended06/30/22 FY 2022 FY 2021 PY ActualsADOPTEDREVISEDAllocationYTD ActualsPercentOver REVENUES AND OTHER SOURCES throughAnnualAnnualChangeof thethroughof YTD(Under) (M) Based on number of months of receipts 3rd quarterBudgetBudgetAmountYTD Budget3rd quarterBudgetBudget Hotel Occupancy Tax M$ 150,744$ 428,000$ 428,000$ -$ 318,667$ 297,93693%$ (20,731) Miscellaneous Income 252 9,200 7,701 (1,499) 6,257 9,562153% 3,305 Total Revenues 150,996 437,200 435,701 (1,499) 324,924 307,49895% (17,426) Transfer In - 500,000 500,000 - 500,000 500,000100% - Total Revenues and Other Sources $ 150,996$ 937,200$ 935,701$ (1,499)$ 824,924$ 807,49898%$ (17,426) RevenueLegend PositiveCautiousNegative •greater than •between •less than 90%70% -90%70% FY 2022 FY 2021 AllocationPercentOver PY ActualsADOPTEDREVISEDYTD Actuals EXPENDITURES AND OTHER USES AnnualAnnualChangeof theof YTD(Under) throughthrough BudgetBudgetAmountYTD BudgetBudgetBudget 3rd quarter3rd quarter 78% Operations & Maintenance$ 176,122$ 343,944$ 343,944$ -$ 267,921$ 209,320$ (58,610) 76% Operating Transfers for Payroll 143,861 497,255 523,397 26,142 392,548 296,940 (95,608) 77% Total Expenditures and Other Uses$ 319,983$ 841,199$ 867,341$ 26,142$ 660,469$ 506,260$ (154,218) ExpenditureLegend CautiousNegative Positive •less than •between •greater than 100%100% -110%110% E XEMPLARY G OVERNANCE Town Officials, both Elected and Appointed, exhibit Respect, Stewardship, Vision, and FY 2022 FY 2021 Transparency Allocation PY ActualsADOPTEDREVISEDYTD Actuals SUMMARY AnnualAnnualChangeof the throughthrough S ERVICE E XCELLENCE BudgetBudgetAmountYTD Budget 3rd quarter3rd quarter Public Service that is Total Revenues & Other Sources $ 150,996 $ 937,200 $ 935,701 $ (1,499) $ 824,924 $ 807,498 Responsive and Total Expenditures & Other Uses 319,983 841,199 867,341 26,142 660,469 506,260 Professional, while Net Change to Fund Balance $ (168,987)$ 96,001$ 68,360 (27,641)$ 164,455$ 301,238 balancing Efficiency, Beginning Fund Balance 323,33298,07898,078 - 98,078 98,078 Effectiveness and Ending Fund Balance 154,345 194,079 166,438 (27,641) 262,533 399,316 Financial Stewardship Restricted Funds - - - - - - Unrestricted Fund Balance $ 154,345$ 194,079$ 166,439$ (27,640)$ 262,533$ 399,316 Town of Westlake Dashboard Analysis for Quarter Ended 06/30/2022 V ISITORS A SSOCIATION F UND TOTAL REVENUES AND OTHER SOURCES $ 937,200 Adopted Budget $ 935,701 Revised Budget $ 824,924 YTD Budget $ 807,498 YTD Actual 98%YTD Budget % $ (17,426) Over (Under) Budget HOTEL OCCUPANCY TAX $ 428,000 Adopted Budget $ 428,000Revised Budget $318,667YTD Budget $ 297,936YTD Actual 93%YTD Budget % $ (20,731)Over(Under) Budget YTD budget calculation is based on the number of months of receipts received for the same period in the prior year to include Marriott and Deloitte revenues. These transactions are posted in arrears which explains a portion of the variance, and though under budget, the activity is starting to recover post-pandemic as travel and tourism increase. MISCELLANEOUS INCOME $ 9,200 Adopted Budget $ 7,701 Revised Budget $ 6,257 YTD Budget $9,562YTD Actual 153% YTD Budget % $ 3,305 Over(Under) Budget This incomeincludes revenues from interest income and insurance refunds, as well as other types of revenues that areevent driven such as sponsorships, donations and special events from the Westlake Historical Board, Car Show, and the Community Tree Lighting. Income in this category is not received evenly throughout the year.The majority of the positive variance is due to the Town’s 2022 Car showas well as the annual Tree Lighting. TRANSFER IN $ 500,000 Adopted Budget $ 500,000 Revised Budget $ 500,000 YTD Budget $ 500,000 YTD Actual 100% YTD Budget % $ - Over(Under) Budget Page 1of 2 Town of Westlake Dashboard Analysis for Quarter Ended 06/30/2022 V ISITORS A SSOCIATION F UND This category is comprised of a transfer in from the GeneralFund which was budgeted to assist in recovery from the economic shortfall due to the impact of COVID-19. TOTAL EXPENDITURES AND OTHER USES $ 841,199 Adopted Budget $ 867,341 Revised Budget $ 660,469 YTD Budget $ 506,260 YTD Actual 77% YTD Budget % $ (154,218) Over (Under) Budget OPERATIONS AND MAINTENANCE $ 343,944 Adopted Budget $ 343,944Revised Budget $ 267,921YTD Budget $ 209,320YTD Actual 78%YTD Budget % $ (58,610)Over(Under) Budget The Operationsand Maintenance category is comprised of expenditures for the following departments: General Services, Communications, Historical Board and the Public Arts Board. These departments’ expenditures include events such as the Car Show, the Community Tree Lighting, and Spring Concerts as well as expendituressuch as marketing, promotional items, and advertising. These costs are not expended evenly over the fiscal year but should even out as the year progresses. PAYROLL TRANSFERS $ 497,255 Adopted Budget $ 523,397Revised Budget $ 392,548YTD Budget $ 296,940YTD Actual 76%YTD Budget % $ (95,608)Over(Under) Budget This cost is affected by employee taxes and insurance costs and will fluctuate with staff requirementsand selections throughout the year. Page 2of 2 Utility Fund - 500 Quarterly Financial Dashboard Quarter Ended6/30/2022 FY 2021FY 2022 REVENUES AND OTHER SOURCES PY Actuals ADOPTEDREVISEDAllocationYTD ActualsPercentOver through AnnualAnnualChangeof thethroughof YTD(Under) (%) Based on same % as prior year 3rd quarterBudgetBudgetAmountYTD Budget3rd quarterBudgetBudget %Water Revenues52% 2,153,626$ 3,794,581$ 5,000,000$ 1,205,419$ 2,693,640$ 3,074,184114%$ 380,545 %Sewer/Waste Revenues59% 947,517 1,417,799 2,099,293 681,494 1,237,956 1,269,924103% 31,968 Tap/Impact Fee Revenues 193,173 119,015 201,790 82,775 151,343 131,19887% (20,144) Permit & Fee Revenues 129,047 342,411 268,011 (74,400) 187,575 165,96988% (21,606) Misc Revenues 22,201 39,085 30,335 (8,750) 22,751 31,451138% 8,700 Bond Proceeds - - 15,727,543 15,727,543 15,727,543 15,727,543100% - Total Revenues and Other Sources $ 3,445,564$ 5,712,891$ 23,326,972$ 17,614,081$ 20,020,807$ 20,400,269102%$ 379,462 RevenueLegend PositiveCautiousNegative •greater •between •less than than 90%70% -90%70% FY 2021FY 2022 EXPENSES AND OTHER USES PY Actuals ADOPTEDREVISEDAllocationYTD ActualsPercentOver through AnnualAnnualChangeof thethroughof YTD(Under) (%) Based on same % as prior year 3rd quarterBudgetBudgetAmountYTD Budget3rd quarterBudgetBudget %Water Purchases47%$ 601,743$ 1,500,100$ 1,500,100$ -$ 749,405$ 808,363108%$ 58,958 Operations & Maintenance 1,571,612 3,414,383 18,548,978 15,134,595 17,767,216 17,422,82198% (344,395) Operating Transfers for Payroll 363,395 591,959 618,101 26,142 463,576 345,01974% (118,557) Transfers Out - 483,000 565,000 82,000 415,000 415,000100% - Total Expenses and Other Uses $ 2,536,750$ 5,989,442$ 21,232,179$ 15,242,737$ 19,395,196$ 18,991,20398%$ (403,994) Expenditure Legend PositiveCautiousNegative •less than •between •greater 100%101% -than E XEMPLARY 110%110% G OVERNANCE Town Officials, both Elected and Appointed, exhibit Respect, Stewardship, Vision, and FY 2021FY 2022 Transparency PY Actuals ADOPTEDREVISEDAllocationYTD Actuals SUMMARY through AnnualAnnualChangeof thethrough 3rd quarterBudgetBudgetAmountYTD Budget3rd quarter S ERVICE E XCELLENCE Total Revenues & Other Sources$ 3,445,564$ 5,712,891$ 23,326,972$ 17,614,081$ 20,020,807$ 20,400,269 Public Service that is Total Expenses 2,536,750 5,989,442 21,232,179 15,242,737 19,395,196 18,991,203 Responsive and Net Change to Fund Balance 908,814 (276,551) 2,094,793 (2,371,344) 625,611 1,409,067 Professional, while balancing Efficiency, Beg. Fund Balance (Working Capital) 5,397,199 6,656,694 6,656,694 - 6,656,694 6,656,694 Effectiveness and Endinging Fund Balance 6,306,013 6,380,143 8,751,487 (2,371,344) 7,282,305 8,065,761 Financial Stewardship Restricted Funds 1,221,733 1,204,695 316,695 (888,000) 316,695 316,695 Unrestricted Fund Balance$ 5,084,280$ 5,175,448$ 8,434,792$ (3,259,344)$ 6,965,610$ 7,749,066 Town of Westlake Dashboard Analysis for Quarter Ending 06/30/2022 U TILITY F UND TOTAL REVENUES AND OTHER SOURCES $ 5,712,891 Adopted Budget $23,326,972 Revised Budget $20,020,807 YTD Budget $20,400,269 YTD Actual 102% YTD Budget % $379,462 Over (Under) Budget WATER REVENUES $ 3,794,581 Adopted Budget $ 5,000,000 Revised Budget $ 2,693,640 YTD Budget $ 3,074,184 YTD Actual 114% YTD Budget % $ 380,545 Over(Under) Budget YTD budget calculation is based on the percentage of revenues received for the same period in the prior year (52%). Increased revenue is primarily due to the TX-170 highway construction project usage which beganthis fiscal year. SEWER/WASTE REVENUES $ 1,417,799 Adopted Budget $ 2,099,293 Revised Budget $ 1,237,956 YTD Budget $ 1,269,924 YTD Actual 103% YTD Budget % $ 31,968 Over(Under) Budget YTD budget calculation is based on the percentage of revenues received for the same period in the prior year (59%).Residential sewer averages work in correlation withwater usage based on the prior year quarter average consumption.Commercial is based on the actual consumption. The positive variance is also primarily due to the TX-170 highway construction project usage which began this fiscal year. TAP AND IMPACT FEE REVENUES $ 119,015 Adopted Budget $ 201,790 Revised Budget $ 151,343 YTD Budget $ 131,198 YTD Actual 87% YTD Budget % $ (20,144) Over(Under) Budget Page 1of 4 Town of Westlake Dashboard Analysis for Quarter Ending 06/30/2022 U TILITY F UND This section is underbudget mainly due to less than anticipated Fort Worth Impact fee revenues through this period. PERMIT AND FEE REVENUES $ 342,411 Adopted Budget $ 268,011 Revised Budget $ 187,575 YTD Budget $ 165,969 YTD Actual 88% YTD Budget % $ (21,60) Over(Under) Budget The decrease in actuals to budget is mainly due to less revenue from the TRA Wastewater Settle-Up than originally anticipated. MISCELLANEOUS REVENUES $ 39,085 Adopted Budget $ 30,335 Revised Budget $ 22,751 YTD Budget $ 31,451 YTD Actual 138% YTD Budget % $ 8,700 Over(Under) Budget Miscellaneous revenues are comprised of several different revenue types, including interest income,meter repair and replacementfees, insurance refunds, equity returns, and credit card administrative fees. This varianceis mainly due to increased administrative fee activities. TOTAL EXPENSES AND OTHER USES $ 5,989,442 Adopted Budget $21,232,179 Revised Budget $19,395,196 YTD Budget $18,991,203 YTD Actual 98% YTD Budget % $(403,994) Over (Under) Budget WATER PURCHASES $ 1,500,100 Adopted Budget $1,500,000 Revised Budget $749,405 YTD Budget $808,363 YTD Actual 108% YTD Budget % $58,958 Over(Under) Budget Page 2of 4 Town of Westlake Dashboard Analysis for Quarter Ending 06/30/2022 U TILITY F UND YTD budgetcalculation is based on the percentage of activity postedfor the same period in the prior year (47%).The variancerepresents water purchases which have increased more than budgeted through this period, noting that invoices have only been posted through April due to timing of accounts payable. OPERATIONS AND MAINTENANCE $ 3,414,383 Adopted Budget $ 18,548,978 Revised Budget $ 17,767,216 YTD Budget $ 17,422,821 YTD Actual 98% YTD Budget % $ (344,395) Over(Under) Budget Operations and Maintenance is comprised of several different expense typesin the Utility Fund. Debt service is underbudget as it awaits payment at the end of the fiscal year. The second item of note to this negative variance is due to the Southlake-Wastewater Treatment expense. The irregular billing agreements with the Town, Southlake and the Trinity River Authority has caused fluctuations in this category, however the new sanitary sewer meter stations constructed in 2020 are correcting the expense lines between Southlake and TRA wastewater treatment. We continue to see the TRA Treatment expense increase as the remaining Southlake expense decreases. We removed the Southlake-Wastewater Treatment line item in the upcoming FY23 budget since it should no longer be needed. OPERATING TRANSFERS FOR PAYROLL COSTS $ 591,959 Adopted Budget $ 618,101 Revised Budget $ 463,576 YTD Budget $ 345,019 YTD Actual 74% YTD Budget % $ (118,557) Over(Under) Budget This cost is affected by employee taxes and insurance costs and will fluctuate with staff requirements. TRANSFERS OUT $ 483,000 Adopted Budget $ 565,000 Revised Budget $ 415,000 YTD Budget $ 415,000 YTD Actual 100% YTD Budget % $ - Over(Under) Budget Page 3of 4 Town of Westlake Dashboard Analysis for Quarter Ending 06/30/2022 U TILITY F UND This category is comprised of a budgeted transfer out to the General Fund based on the forecasted Fort Worth Impact Fees on new home construction starts(transferred at year- end based on actual receipts): o$150Kto General Fund 100 The following additional budgeted transfers out to the conduit funds have already been completed: o$65k to Vehicle Maintenance/Replacement Fund 505 o$350k to Maintenance/Replacement Fund 510 Page 4of 4 Quarterly Investment Report Third Quarter Ended June 30, 2022 INVESTMENT ACTIVITY FINANCIAL INSTITUTION06/30/2203/31/2212/31/219/30/21 First Financial Bank Muni General Operating - 6904 Beginning Balance$ 40,073,287$ 36,471,381$ 35,589,748$ 34,611,280 Deposits 1,932,856 1,362,602 3,045,683 - Withdrawals 1,671,853 1,668,746 1,865,913 - Interest 22,117 4,616 4,581 - Ending Balance 40,356,407 36,169,853 36,774,099 34,611,280 Westlake Academy - 6920 Beginning Balance 1,629,411 2,044,552 2,093,074 1,963,399 Deposits 726,384 747,815 797,410 - Withdrawals 820,429 1,000,728 838,168 - Interest 765 203 250 - Ending Balance 1,536,130 1,791,842 2,052,567 1,963,399 Insurance Trust - 6946 Beginning Balance - - - - Deposits 61,939 58,690 47,042 - Withdrawals 61,939 58,690 47,042 - Interest - Ending Balance - - - - PNC Beginning Balance 7,239 6,264 5,529 4,582 Deposits 51,464 37,694 41,042 29,413 Withdrawals 50,716 37,033 40,679 29,178 Interest - - - - Ending Balance 7,987 6,925 5,892 4,817 TexPool Muni Beginning Balance 105 105 105 - Deposits - - - - Withdrawals - - - - Interest - - - - Ending Balance 105 105 105 - Academy Beginning Balance 105 105 105 - Deposits - - - - Withdrawals - - - - Interest - - - - Ending Balance 105 105 105 - T:\\Financial Reports - Town Quarterly\\Q3FY22 Reports\\Investment Reporting 6.30.22 Investment Activity Summary as of 06/30/22 Book & Market Description Yield Value Maturity Date Settlement Date First Financial Bank0.6728% 41,892,53806/30/2207/01/22 PNC - 7,98706/30/2207/01/22 TexPool1.0013% 21006/30/2207/01/22 * All accounts have a Life of 1 day and a Market Price of $1. BENCHMARKS Investment Type06/30/2203/31/2212/31/2109/30/21 T-Bills 3 months1.490.440.060.04 6 months2.110.830.150.05 T-Notes 1 Yr2.651.340.300.08 2 Yrs3.001.910.680.24 3 Yrs3.152.090.950.47 5 Yrs3.192.111.230.86 Gov't Pools Texpool1.000.150.040.03 Commerical Paper 30 Days1.400.360.080.08 60 Days1.730.520.16ND 90 Days1.870.730.170.10 Sources FRB H15: Data Download Program - Choose (federalreserve.gov) TexPool T:\\Financial Reports - Town Quarterly\\Q3FY22 Reports\\Investment Reporting 6.30.22 ECONOMIC SUMMARY Inflationreachedanother40-yearhighinMay2022astheconsumerpriceindex(CPI)roseover8%year-over-yearwhichis thehighestsince1981.TheS&P500showedtheworstfirsthalfyearnumbersreportedinover50years;similarlytheNasdaq haditsworstfirstsixmonthsreportsinitshistory.InQ22022,theUSFederalReservefocusedonreducinginflationby increasinginterestratesby25basispointsinMarchandthenaddedanother50basispointsinMay.InJune,itincreasedyet another 75 basis points because of the inflation crisis. Attheendofthequarter,yieldson1-,3-,6-and12-monthU.S.Treasurieswere1.03%,1.67%,2.49%and2.80%,respectively; the1-,3-,6-and12-monthBloombergShort-TermBankYieldIndexrates(BSBY)were1.62%,2.24%,2.87%and3.54%, respectively;andthe1-,3-,6-and12-monthLondoninterbankofferedrateswere1.80%,2.29%,2.90%and3.56%, respectively. Sources TexPool and TexPool Prime (federatedinvestors.com) economic-commentary_06.10.2022.pdf (hilltopsecurities.com) Economic Summary – Q2 2022 - HilltopSecurities TheinformationhereinrepresentsWestlake'sMuncipalandAcademicinvestmentreportfortheperiodendedJune30,2022. TheundersignedacknowledgesthattheTown'sinvestmentportfoliosareaccurateandisactivelyworkingtoensure compliancewiththepoliciesandstrategiescontainedintheTown'sInvestmentPolicyasadoptedbyOrdinance950andis activelyworkingtoensurecompliancewiththerequirementsofsection2256.023ofthePublicFundsInvestmentActofthe State of Texas. Amber Karkauskas, CGFO, Director of Finance T:\\Financial Reports - Town Quarterly\\Q3FY22 Reports\\Investment Reporting 6.30.22 Westlake Town Council T YPE OF A CTION Regular Meeting -Presentation 7¤²³« ª¤ 4®¶ #®´¢¨« -¤¤³¨¦ Monday, September 26, 2022 T OPIC:Presentation and discussion regarding Public Art Competition Committee. S TAFF C ONTACT: Jarrod Greenwood, Acting Town Manager Strategic Alignment Outcome Vision, Value, Mission Perspective Strategic Theme & Results Objective High Quality Planning, Design & Development - We are a desirable well People, Facilities, Preserve Desirability Strong Aesthetic Standards planned, high-quality community that & Technology & Quality of Life is distinguished by exemplary design standards. Time Line - Start Date: September 26, 2022 Completion Date: September 26, 2022 Funding Amount: N/A Status - N/A Source - N/A Contract: No Forms: N/A E XECUTIVE S UMMARY (I NCLUDING A PPLICABLE O RGANIZATIONAL H ISTORY) The Westlake Public Art Competition Advisory Committee was founded to establish a partnership between the Town of Westlake and distinguished representatives of the Regional Arts Community that would jointly pursue a Competition based Public Arts Program in Westlake, Texas in an effort to cultivate excellence in public art, nourish and develop new and emerging talent, provide a venue for the recognition and promotion of such unique talent, and seek masterpieces in public artworks overall. On February 27, 2017, after a lengthy process that included opportunity for public participation, the Town Council reviewed and adopted a new Public Art Plan. Staff then began working with the Town’s public art consultant to formulate next steps for implementing the Town’s Public Art Plan. This included creating a competition to ultimately obtain a public art piece which would be Page 1 of 2 the first in the Town’s collection under this Public Art Program. To accomplish this first public art competition, it was proposed to the Council for it to appoint a Public Art Competition Advisory Committee. This Committee was appointed, and their charge delineated, by the Town Council with approval of Resolution 17-25 on Jun 19, 2017. Since that the time the Westlake Public Art Competition Committee (WPACC or Committee) met and identified the location of the Town’s first public art piece under the Town’s new Public Art Plan. Further, the WPACC also formulated the process for identifying artists, soliciting their qualifications, and selecting finalists for design of this first public art piece under the Town’s new Public Art Plan. The Committee was also heavily involved in identifying funding for this effort. At their January 29, 2018 workshop, the Council was given a presentation by Committee representatives to update the Town Council on their activities to date, as well as review the Request for Qualifications (RFQ) document, and RFQ process with the Council. The Council expressed consensus and agreement on the RFQ process to date, however, it expressed again Council’s sense that funding for the artist honorarium(s) should come from donations, i.e. the same funding for the art piece selected via this competition process. The Committee continued its work to refine the RFQ document as well as the RFQ process and obtained donations for artist honorarium(s), developed a flow chart to outline the process that was used to obtain the public art piece. This process was presented at the Council’s April 30, 2018 workshop. On September 24, 2018 Committee members presented for Council input and direction the a draft RFQ document that the WPACC solicited for artist qualifications for artwork. On September 28, 2020 the Town Council approved a contract with Robin McCaffrey to raise funds for the public art project. The Public Art Committee Chair provided an update to Council at the October 4, 2021 Council meeting. Page 2 of 2 ĻǣƦğƓķźƓŭ ǒƩĬğƓ Ώ Star Telegram Mayor of Westlake, ğ ƷƩǒĻ ƚğƭźƭ źƓ ğƓ ĻǝĻƩ - ƦƌğĭĻ Metroplex Arts Community Partnership for Art Westlake Community Advisory Committee Advisory Committee Advisory Committee Advisory Committee TOWN COUNCIL AGENDA ITEM Regular Meeting Monday, September 26, 2022 TOPIC: Consider approval of a Resolution approving the 2023 Meeting Schedule of the Town Council, Board of Trustees, and Planning & Zoning Commission. STAFF: Amy M. Piukana, Town Secretary STRATEGIC ALIGNMENT Vision, Value, Mission Perspective Strategic Theme & Results Outcome Objective Exemplary Service & Governance Increase Informed & Engaged - We set the standard by delivering Citizen, Student & Transparency, Citizens / Sense of unparalleled municipal and Stakeholder Accessibility & Community educational services at the lowest Communications cost. SUMMARY Each year, a proposed meeting calendar for the upcoming year is presented to the Town Council for approval. Town Council meetings are held on Mondays with a typical start time of 5 p.m. Work Session and Closed Executive Session meetings are typically held prior to the regular meeting. Times can range from 2 p.m. to 4 p.m. The proposed calendar considers several factors in preparing the 2023 meeting calendar, including national holidays, school holidays, school graduation, the May election and the canvass, Planning & Zoning meetings and setting the tax rate for adoption of the annual budget. Once the final calendar is approved, the calendar is shared with developers to utilize for plan submittals and to residents. COUNCILACTION/OPTIONS 1. I make a motion to approve the proposed Resolution, as presented. 2. I make a motion to approve the proposed Resolution, amending the calendar with the following dates… 3. I move to take no action. STAFF RECOMMENDATION Staff recommends approval of the Resolution. FISCAL/SERVICELEVEL IMPACT TO COMMUNITY Page 1 of 2 Project Cost/Funding Amount: N/A Funding Source: N/A Contract: No Forms: N/A Service Levels:N/A DEVELOPMENT/MOBILITY IMPACT TO COMMUNITY Town of Westlake: The proposed Resolution is not anticipated to impact the Town of Westlake’s budget. Comprehensive Plan: The proposed Resolution does not impact the Comprehensive Plan. Cost RecoveryAnalysis: Theproposed Resolution is notevaluated through the Cost Recovery Analysis Tool. Traffic Impact: The proposed Resolution does not have an impact on traffic. ATTACHMENTS Exhibit “A” – Proposed Meeting Calendar Resolution Page 2 of 2 TOWN OF WESTLAKE RESOLUTION NO. 22-63 A RESOLUTION OF THE TOWN COUNCIL OF THE TOWN OF WESTLAKE, TEXAS, ESTABLISHING REGULAR MEETING DATES AND PROCEDURES; SETTING THE 2023MEETING DATES OF THE TOWN COUNCIL, BOARD OF TRUSTEES, PLANNING AND ZONING COMMISSION; AND DECLARING AN EFFECTIVE DATE. WHEREAS, the Texas Local Government Code allows the governing body of a general law municipality to establish regular meetings of the governing body by the passage of a resolution; and WHEREAS, the Town Council finds that it is in the best interest of the Council and the Town’s residents that the Council shall establish regular meetings at a convenient date, time, and place; and WHEREAS, the 2023 available regular meeting dates are hereby established in accordance with attached Exhibit “A”; and WHEREAS, the Town Council finds that the passage of this Resolution is in the best interest of the citizens of Westlake. NOW, THEREFORE, BE IT RESOLVED BY THE TOWN COUNCIL OF THE TOWN OF WESTLAKE, TEXAS: SECTION 1: That, all matters stated in the Recitals hereinabove are found to be true and correct and are incorporated herein by reference as if copied in their entirety. SECTION 2: The Town Council of the Town of Westlake, Texas, and Westlake Academy Board of Trustees shall conduct regularly scheduled meetings on dates and times as established by the Town Council. All Mondays shall be established as a day available for regular meetings as needed. Special meetings shall be called in accordance with Section 22.038(b) of the Texas Local Government Code. Meetings shall be held at the Town Hall offices located at 1500 Solana Boulevard, Bldg. 7, Ste. 7100, Westlake, Texas 76262, or a meeting room close by, or another location designated by the Town in the meeting notice.The exact time of each meeting will be determined prior to the notice of said meeting. SECTION 3: The Town Council hereby sets the 2023 regular meeting schedules as shown in the attached Exhibit “A”. Resolution Page 1 of 2 SECTION 4: If any portion of this Resolution shall, for any reason, be declared invalid by any court of competent jurisdiction, such invalidity shall not affect the remaining provisions hereof and the Council hereby determines that it would have adopted this Resolution without the invalid provision. SECTION 5:That this resolution shall become effective from and after its date of passage. th PASSED AND APPROVED ON THIS 26DAY OF SEPTEMBER 2022. _____________________________ ATTEST: Sean Kilbride, Mayor _____________________________________ ______________________________ Amy M. Piukana, Town SecretaryJarrod Greenwood, Acting Town Manager APPROVED AS TO FORM: ____________________________ L. Stanton Lowry, Town Attorney Resolution Page 2 of 2 Town of Westlake 2023 Meeting Schedule January 2023 1 February 2023 2 March 2023 3 SMTWThFSaSMTWThFSaSMTWThFSa 1 2 3456712341234 8910111213145 6 78910115 6 7891011 15 1617 1819202112 13 141516171812 13 1415161718 22 23 242526272819 20 212223242519202122232425 29 30 3126 27 2826 27 28293031 2-New Year; 16-MLK20-Presidents Day13-17 Spring Break April 2023 4 May 2023 5 June 2023 6 SMTWThFSaSMTWThFSaSMTWThFSa 112345 6 123 3 456 7 8789101112134 5 678910 2 9 10 111213141514 15 161718192011 12 1314 1516 17 16 17 181920212221 22 232425262718 19 2021222324 23 24 252627282928 29 3031252627282930 30 7-Good Friday29-Memorial Day19-Juneteenth July 2023 7 August 2023 8 September 2023 9 SMTWThFSaSMTWThFSaSMTWThFSa 11234512 23 4 56786 7 891011123 4 56789 910111213141513 14 151617181910 11 1213141516 161718192021222021222324252617 18 1920212223 2324252627282927 28 29303124 25 2627282930 3031 4th-Holiday4-Labor Day October 2023 10 November 2023 11 December 2023 12 SMTWThFSaSMTWThFSaSMTWThFSa 1234567123412 9 10111213145 6 78910113456789 8 15 16 171819202112 1314 1516171810 11 1213141516 2223242526272819202122 2324 2517181920212223 29 30 31262728293024 2526 27282930 31 * 10/16 School Holiday23/24 Thanksgiving22&25-Christmas/29-New Year Town Council Municipal HolidayBudget/Meeting Retreats New Council OrientationAcademic HolidayPlanning & Zoning Municipal & Academic HolidayFirst/Last Day of School Election Day/Special Board of Trustee 1/02: Academic & Muni Holiday5/22 FY24 1st Draft Town Budget Workshop 1/09 WA FY24 Strategic Budget Workshop5/26: Last Day of School 1/30: Order the election (2/17 Last Day) 5/27: Academy Commencement 1/30 Town FY24 Strategic Budget Workshop6/15 & 6/16: Budget Retreat - All Day 2/06 WA FY24 Strategic Budget Workshop II8/07: Adopt WA Budget/Set Rate/PH 2/27 Town Strategic Budget Workshop II8/16: First Day of School 3/13-17: Spring Break8/28: TC adopt budget 5/06: Election Day9/11: Public Hearing, adopt Muncipal Budget, Tax Rate MonthsstartDate 1/1/2023 January The Start Date: February This named formula (startDate) is March Month Names: the first day of the first month in April This named range the yearly calendar, defined by the (months) is used as the May month and year chosen by the input for the combo box. user. June July August September October November December Method for creating a monthly calendar without using arraysUsin January 2023 How it Works: SunMonTueWedThuFriSatJanu This calendar is included to show how the more complex array function works. Note the 1234567 S use of mixed absolute and relative references 1 12345671 that enable you to copy the formula down and 2 8910111213148 across. This is basically what the array 3 1516171819202115 formula is doing for you. 4 2223242526272822 5 29303129 6 monthNamesstartDates January1/1/2023 February2/1/2023 March3/1/2023 April4/1/2023 May5/1/2023 June6/1/2023 July7/1/2023 August8/1/2023 September9/1/2023 October10/1/2023 November11/1/2023 December12/1/2023 January1/1/2024 February2/1/2024 March3/1/2024 April4/1/2024 May5/1/2024 June6/1/2024 July7/1/2024 August8/1/2024 Adding additional months: September9/1/2024 Insert a new row (before the last month in the list) and copy October10/1/2024 the formulas down the formulas down. November11/1/2024 December12/1/2024 January1/1/2025 February2/1/2025 ng arrays uary 2023 MTWThFSa 234567 91011121314 161718192021 232425262728 3031 TOWN COUNCIL AGENDA ITEM Regular Meeting - Action Item Monday, September 26, 2022 TOPIC: Consider approval of an ordinance amending Article II, Division 1, Section 67 - Planning and Zoning Commission, of Chapter 26 - Community Development, Town of Westlake Code of Ordinances; expanding the Planning and Zoning Commission from 5 to 7 regular voting members, eliminating alternate Commission positions, and authorizing the Town Council to appoint the chair and vice-chair of the Commission STAFF: Ron Ruthven, Planning and Development Director STRATEGIC ALIGNMENT Vision, Value, Mission Perspective Strategic Theme & Results Outcome Objective High Quality Planning, Design & Development - We are a desirable Planned / Responsible Preserve Desirability N/A well planned, high-quality Development & Quality of Life community that is distinguished by exemplary design standards. SUMMARY Per the Mayor’s request, staff has drafted amendments for Council consideration to Chapter 26- Community Development in the Code of Ordinances. Section 67 of the chapter prescribes the structure, powers and duties of the Planning and Zoning Commission. The proposed amendments involve the following significant changes to the Commission: Increasing the number of regular voting Commission members from five to seven members. The effect of this change will result in a quorum of Commissioners being four members as opposed to the current quorum of three members; Eliminating the alternate Commission member positions. The effect of this change will be a reduction of total Commission members from eight members (5 regular voting members and three alternate members) to seven regular voting members. The current third alternate position would be removed from the Commission as a result of the amendment; Authorizing the Mayor to appoint the Commission Chair and Vice-Chair. Currently, the Commission appoints the Chair and a Vice-Chair. The effect of this change would be that the Mayor must appoint a Chair and Vice-Chair of the Commission. Page 1 of 3 If approved, these changes would become effective before the Commission meets again later this year. The following is a redline “mark-up” of the proposed changes: “Sec. 26-67. Planning and zoning commission. (a) Creation and membership. There is hereby created a planning and zoning commission for the town consisting of sevenfive regular members, each to be appointed by the town council for a term of two years and whose members may be removed at the sole discretion of the Town Council removable for cause. The mayor shall name a chair and vice-chair of the commission.The terms of three members shall expire in odd- numbered years, and the terms of two members shall expire in even- numbered years. Each member shall continue to serve until their successors are appointed and qualified. In addition to the five regular members, three alternate members, first alternate, second alternate, and third alternate shall be appointed by the town council for terms of two years. The alternate members shall only vote in the absence of a regular member(s) or in place of a regular member(s) that has abstained. Priority shall be given to the first, and the then the second alternate. (b) Powers and duties. The planning and zoning commission shall have the following powers and duties: (1) To serve as an advisory body to the town council concerning adoption of or amendments to the zoning regulations and zoning map and to make recommendations thereon; (2) To advise the council and make recommendations concerning adoption of, or amendments to the town's comprehensive plan, thoroughfare plan, and open space plan and implementation thereof; (3) To oversee the town's regulations governing the platting and recording of subdivisions, including matters pertaining to the dedication of public facilities, and to advise the council on matters pertaining to public improvements, traffic, utility extensions and the provision of public facilities and services, in order to implement the town's comprehensive plan; (4) To undertake such actions as are necessary to exercise its delegated powers, as indicated by adopted ordinance; (5) To approve certain matters relating to platting and recording of subdivisions as dictated by the town's ordinances and the UDC; (6) To select a planning and zoning commission chair; (67) To call public hearings to initiate zoning changes.” COUNCILACTION/OPTIONS Approve the proposed Ordinance; Approve the Ordinance with conditions/modifications; Deny the proposed Ordinance; Table the item. FISCAL/SERVICELEVEL IMPACT TO COMMUNITY Page 2 of 3 Project Cost/Funding Amount: $0.00 Funding Source: N/A Contract: No Forms: N/A DEVELOPMENT/MOBILITYIMPACTTOCOMMUNITY Westlake Academy: N/A Comprehensive Plan: N/A Traffic Impact: N/A STAFF RECOMMENDATION At Council’s discretion, staff recommends approval of the proposed amendments as drafted. The amendments have been reviewed by the Town Attorney. ATTACHMENTS Proposed Ordinance containing the proposed amendments Page 3 of 3 TOWN OF WESTLAKE ORDINANCE NO. 954 AN ORDINANCE OF THE TOWN OF WESTLAKE AMENDING THE TOWN OF WESTLAKE CODE OF ORDINANCES, CHAPTER 26 COMMUNITY DEVELOPMENT, ARTICLE II, DIVISION 1, SECTION 26-67 PLANNING AND ZONING COMMISSION; PROVIDING A PENALTY CLAUSE; PROVIDING A CUMULATIVE CLAUSE; PROVIDING A SEVERABILITY CLAUSE; PROVIDING A SAVINGS CLAUSE; AUTHORIZING PUBLICATION; AND ESTABLISHING AN EFFECTIVE DATE. WHEREAS, the Town of Westlake, Texas is a Type A General Law municipality; and WHEREAS, the Town of Westlake seeks to ensure that new development is consistent with the Town’s vision as further described and detailed in the Town’s adopted plans, policies and regulations; and, WHEREAS, Chapter 26 Community Development, Article II, Division 1, Section 67 Planning and Zoning Commission, Town of Westlake Code of Ordinances provides for the structure, powers and duties of the Planning and Zoning Commission; and WHEREAS, the Town Council of the Town of Westlake desires to change the structure of the Planning and Zoning Commission in order to better promote the Commission’s scope and purpose in ensuring development consistency with the Town’s adopted plans, policies and regulations; and WHEREAS, the Town Council of the Town of Westlake, Texas, is of the opinion that it is in the best interests of the town and its citizens that the amendments should be approved and adopted. NOW, THEREFORE, BE IT ORDAINED BY THE TOWN COUNCIL OF THE TOWN OF WESTLAKE, TEXAS: SECTION 1: That all matters stated in the preamble are found to be true and correct and are incorporated herein as if copied in their entirety. SECTION 2:That Chapter 26 Community Development, Article II, Division 1, Section 67 Planning and Zoning Commission, Town of Westlake Code of Ordinances is hereby amended as follows: Sec. 26-67. Planning and zoning commission. (a) Creation and membership. There is hereby created a planning and zoning commission for the town consisting of seven regular members, each to be appointed by the town council for a term of Ordinance 954 Page 1 of 3 two years and whose members may be removed at the sole discretion of the mayor. The mayor shall name a chair and vice- chair of the commission. The terms of three members shall expire in odd-numbered years, and the terms of four members shall expire in even-numbered years. Each member shall continue to serve until their successors are appointed and qualified. (b) Powers and duties. The planning and zoning commission shall have the following powers and duties: (1) To serve as an advisory body to the town council concerning adoption of or amendments to the zoning regulations and zoning map and to make recommendations thereon; (2) To advise the council and make recommendations concerning adoption of, or amendments to the town's comprehensive plan, thoroughfare plan, and open space plan and implementation thereof; (3) To oversee the town's regulations governing the platting and recording of subdivisions, including matters pertaining to the dedication of public facilities, and to advise the council on matters pertaining to public improvements, traffic, utility extensions and the provision of public facilities and services, in order to implement the town's comprehensive plan; (4) To undertake such actions as are necessary to exercise its delegated powers, as indicated by adopted ordinance; (5) To approve certain matters relating to platting and recording of subdivisions as dictated by the town's ordinances and the UDC; (6) To call public hearings to initiate zoning changes. SECTION 3: That this Ordinance shall be cumulative of all other Town Ordinances and all other provisions of other Ordinances adopted by the Town which are inconsistent with the terms or provisions of this Ordinance are hereby repealed. SECTION 4: That any person violating any provision of this Chapter may be issued a citation and upon conviction thereof, the person shall be deemed guilty of a misdemeanor and punished as provided in subsection 1-9 of the Code of Ordinance of the Town of Westlake. Each 24-hour period of violation, and each separate act or condition in violation of this Chapter, shall constitute a separate offense. SECTION 5:It is hereby declared to be the intention of the Town Council of the Town of Westlake, Texas, that sections, paragraphs, clauses and phrases of this Ordinance are severable, and if any phrase, clause, sentence, paragraph or section of this Ordinance shall be declared legally invalid or unconstitutional by the valid judgment or decree of any court of competent jurisdiction, such legal invalidity or unconstitutionality shall not affect any of the remaining phrases, clauses, sentences, paragraphs or sections of this Ordinance since the same would have been enacted by the Town Council of the Town of Westlake without the Ordinance 954 Page 2 of 3 incorporation in this Ordinance of any such legally invalid or unconstitutional, phrase, sentence, paragraph or section. SECTION 6: This ordinance shall take effect immediately from and after its passage as the law in such case provides. PASSED AND APPROVED ON THIS 26th DAY OF SEPTEMBER 2022. _____________________________ ATTEST: Sean Kilbride, Mayor ____________________________ ______________________________ Amy M. Piukana, Town Secretary Jarrod Greenwood, Acting Town Manager APPROVEDAS TO FORM: ____________________________ L. Stanton Lowry, Town Attorney Ordinance 954 Page 3 of 3 Westlake Town Council T YPE OF A CTION Regular Meeting - Action Item 7¤²³« ª¤ 4®¶ #®´¢¨« -¤¤³¨¦ Monday, September 26, 2022 T OPIC: Consider adopting Ordinance 953 to amend the Westlake engineering design standards and construction drawings by revising chapter 36 Articles I to X of the Code of Ordinances, providing an effective date and providing a severability clause. S TAFF C ONTACT: Troy J. Meyer, Assistants Town Manager Strategic Alignment Outcome Vision, Value, Mission Perspective Strategic Theme & Results Objective High Quality Planning, Design & Development - We are a desirable well Planned / Responsible People, Facilities, Preserve Desirability planned, high-quality community that Development & Technology & Quality of Life is distinguished by exemplary design standards. Time Line - Start Date: September 26, 2022 Completion Date: September 26, 2022 Funding Amount: N/A Status - N/A Source - N/A Contract: No Forms: N/A E XECUTIVE S UMMARY (I NCLUDING A PPLICABLE O RGANIZATIONAL H ISTORY) In September of 1998 and 2002 The Board of Aldermen made major amendments to the Town engineering standards and construction drawings found in Charter 36 Article I to X. Over the years the Town Council has approved amendments to individual articles within Chapter 36 to include the following: Article I: General provisions Article II: Roadway facilities Article III: Drainage facilities Page 1 of 3 Article IV: Water utility facilities Article V: Wastewater facilities Article VI: Erosion control Article VII: Grading Article VIII: Utility duct bank facilities Article IX: Residential lot grading Article X: Appendix The proposed update to the engineering design standards and construction drawings provides the additional detail to the standards bringing it in alignment with the Town’s current Comprehensive Plan, current state regulations, regional storm drainage designrequirements, construction standards and material requirements used for the construction of Town infrastructure. The proposed engineering design standards and construction drawings are the most current edition of the "Standard Specifications for Public Works Construction" as published under the authority of the North Central Texas Council of Governments (NCTCOG). This proposed latest edition, along with the amendments and special provisions to the document, approved or issued by the Town, shall comprise the Standard Specifications. In the event of conflict, the Standard Specifications shall be superseded by the provisions and requirements of this document, or the acceptance of the Town Engineer or his designee. Only the item or items of conflict shall be affected. All other provisions and requirements shall stand. COUNCIL ACTION/OPTIONS 1. I make a motion to adopt Ordinance 953, as presented. 2. I make a motion to amend Ordinance 953, with the following modifications. 3. I make a motion to table or postpone this item to a date specific. STAFF RECOMMENDATION Staff recommends approval. FISCAL/SERVICE LEVEL IMPACT TO COMMUNITY Project Cost/Funding Amount: N/A Funding Source: N/A Contract: NoForms: N/A Service Levels:N/A DEVELOPMENT/MOBILITY IMPACT TO COMMUNITY Town of Westlake: High Quality Planning, Design & Development - We are a desirable well planned, high-quality community that is distinguished by exemplary design standards. Comprehensive Plan: Met town open design standers. Page 2 of 3 Cost Recovery Analysis: N/A Traffic Impact: N/A A TTACHMENTS 1. Ordinance 953 2. Exhibit A Engineering design standards and construction drawings Page 3 of 3 TOWN OF WESTLAKE ORDINANCE NO. 953 AN ORDINANCE OF THE TOWN OF WESTLAKE, TEXAS, AMENDING THE ENGINEERING STANDARDS AND CONSTRUCTION DRAWINGS IN CHAPTER 36, ARTICLE I THROUGHT X; PROVIDING A PENALTY CLAUSE; PROVIDING A CUMULATIVE CLAUSE; PROVIDING A SEVERABILITY CLAUSE; PROVIDING A SAVINGS CLAUSE; AUTHORIZING PUBLICATION; AND ESTABLISHING AN EFFECTIVE DATE. WHEREAS, the Town Council of the Town of Westlake has determined by updating the town engineering standardsand construction drawingsin Chapter 36 of the Code of Ordinance is necessary to adequately protect and preserve desirability & quality of life in Westlake; and WHEREAS, the Town Council of the Town of Westlake finds amending town engineering standards and construction drawings inChapter 36 Article I thought X will ensure high quality planning, design & development; and WHEREAS, the engineering design standards and construction drawings are the most current edition of the "Standard Specifications for Public Works Construction" as published under the authority of the North Central Texas Council of Governments (NCTCOG); and WHEREAS, upon the recommendation of staff, the Town Council of the Town of Westlake, Texas, is of the opinion that it is in the best interests of the Town and its citizens that amending the Town engineering standards and construction drawings ofChapter 36 Article I thought X should be approved and adopted. NOW, THEREFORE, BE IT ORDAINED BY THE TOWN COUNCIL OF THE TOWN OF WESTLAKE, TEXAS: SECTION 1: That all matters stated in the preamble are found to be true and correct and are incorporated herein as if copied in their entirety. SECTION 2: That the Town Council does hereby amend the Town engineering standards and construction drawings, Chapter 36, Article I through X, as shown on attached Exhibit "A" hereto, and said exhibit is hereby incorporated in its entirety as if fully set forth." SECTION 3: That all provisions of this ordinance shall remain in full force and effect. SECTION 4: That this Ordinance shall be cumulative of all other Town Ordinances and all other provisions of other Ordinances adopted by the Town which are inconsistent with the terms or provisions of this Ordinance are hereby repealed. SECTION 5: That any person, firm or corporation violating any of the provisions or terms of this ordinance shall be subject to the same penalty as provided for in the Code of Ordinances of Ordinance XX Page 1 of 3 the Town of Westlake, and upon conviction shall be punishable by a fine not to exceed the sum of Two Thousand Dollars ($2,000.00). Each day that a violation is permitted to exist shall constitute a separate offense. SECTION 6: It is hereby declared to be the intention of the Town Council of the Town of Westlake, Texas, that sections, paragraphs, clauses and phrases of this Ordinance are severable, and if any phrase, clause, sentence, paragraph or section of this Ordinance shall be declared legally invalid or unconstitutional by the valid judgment or decree of any court of competent jurisdiction, such legal invalidity or unconstitutionality shall not affect any of the remaining phrases, clauses, sentences, paragraphs or sectionsof this Ordinance since the same would have been enacted by the Town Council of the Town of Westlake without the incorporation in this Ordinance of any such legally invalid or unconstitutional, phrase, sentence, paragraph or section. SECTION 7: This ordinance shall take effect immediately from and after its passage as the law in such case provides. TH PASSED AND APPROVED ON THIS 26DAY OF SEPTEMBER 2022. _____________________________ ATTEST: Sean Kilbride, Mayor _____________________________________ ______________________________ Amy Piukana, Town Secretary Jarrod Greenwood, Acting Town Manager APPROVED AS TO FORM: ____________________________ L. Stanton Lowry, Town Attorney Ordinance XX Page 2 of 3 Exhibit “A” Ordinance XX Page 3 of 3 Town of Westlake STORM WATER DESIGN MANUAL Revised September 2022 Table of Contents 6 GOALS AND OBJECTIVES ............................................................................................... 7 POLICY STATEMENTS ...................................................................................................... 8 CHAPTER 1 STORM WATER MANAGEMENT SYSTEM PLANNING AND DESIGN 10 Section 1.1 Storm Water Site Planning......................................................................................... 10 Section 1.1.2 integrated Storm Water Management (iSWM) Site Plans .................................... 11 Section 1.1.3 Developer Steps to Prepare an iSWM Site Plan ................................................... 12 Section 1.1.4 Local Community Plan Review Responsibilities ................................................. 12 Section 1.1.5 Local Government Responsibilities during Construction and Operation ......... 12 Section 1.1.6 iSWM Site Plan Design Tools................................................................................. 13 Section 1.2 integrated Planning and Design Approach .............................................................. 13 Section 1.2.1 Introduction ............................................................................................................. 13 Section 1.2.2 Downstream Assessment ...................................................................................... 13 Section 1.2.3 Water Quality Protection ........................................................................................ 14 Section 1.2.4 Stream Bank Protection.......................................................................................... 14 Section 1.2.5 Flood Control ........................................................................................................... 14 Section 1.2.6 integrated Watershed Planning ............................................................................. 14 Section 1.3 integrated Site Design Practices............................................................................... 14 Section 1.3.4 integrated Site Design Credits ............................................................................... 14 Section 1.4 integrated Storm Water Controls .............................................................................. 14 CHAPTER 2 HYDROLOGIC ANALYSIS 16 Section 2.1 Estimating Runoff ....................................................................................................... 16 Section 2.1.1 Introduction to Hydrologic Methods ..................................................................... 16 Section 2.1.2 Symbols and Definitions............................................................................................. 16 Section 2.1.3 Rainfall Estimation ..................................................................................................... 16 Section 2.1.4 RationalMethod ......................................................................................................... 16 Section 2.1.5 SCS Hydrologic Method ......................................................................................... 17 Section 2.1.6 Unit Hydrograph Method ........................................................................ 19 Section 2.1.7 Modified Rational Method....................................................................................... 19 Section 2.1.8 USGSand TxDOT Regression Methods ............................................................... 19 Section 2.1.9 Downstream Hydrologic Assessment ................................................................... 19 Section 2.1.10 Water Quality Protection Volume and Peak Flow .............................................. 19 Section 2.1.11 Streambank Protection Volume Estimation ........................................................ 19 Section 2.1.12 Water Balance Calculations ................................................................................. 20 CHAPTER 3 HYDRAULIC DESIGN OF STREETS AND CLOSED CONDUITS 21 Section 3.1 Storm Water Street and Closed Conduit Design Overview.................................... 21 Section 3.1.1 Storm Water System Design .................................................................................. 21 Section 3.1.2 Key Issuesin Storm Water System Design .......................................................... 21 Section 3.1.3 Design Storm Recommendations .......................................................................... 21 Section 3.2 On-Site Flood Control System Design ..................................................................... 22 Section 3.2.1 Overview................................................................................................................... 22 Section 3.2.2 Symbols and Definitions ........................................................................................ 22 Section 3.2.3 Street and Roadway Gutters .................................................................................. 22 Section 3.2.4 Storm Water Inlets ................................................................................................... 22 Section 3.2.5- Grate Inlet Design ..................................................................................................... 22 Section 3.2.6 Curb Inlet Design..................................................................................................... 23 Section 3.2.6.2 Curb Inlets in Sumps ........................................................................................... 23 Section 3.2.7 Combination Inlets .................................................................................................. 23 Section 3.2.8 Closed Conduit Systems ....................................................................................... 23 Section 3.3 General Design and Construction Standards .......................................................... 26 Section 3.4 Easements for Closed Conduit Systems ................................................................. 27 CHAPTER 4 HYDRAULIC DESIGN OF CULVERTS, BRIDGES, OPEN CHANNELS, AND DETENTION STRUCTURES 28 Section 4.1 Storm Water Open Channels, Culverts, Bridges, and Detention Structure Design Overview ........................................................................................................................................... 28 Section 4.1.1 Storm Water System Design .................................................................................. 28 Section 4.1.2 Key Issuesin Storm Water System Design .......................................................... 28 Section 4.1.3 Design Storm Recommendations .......................................................................... 28 Section 4.2 Culvert Design ............................................................................................................ 28 Section 4.2.1 Overview................................................................................................................... 28 Section 4.2.2 Symbols and Definitions ........................................................................................ 28 Section 4.2.3 Design Criteria ......................................................................................................... 28 Section 4.2.4 Design Procedures .................................................................................................. 28 Section 4.2.5 Culvert Design Example ......................................................................................... 29 Section 4.2.6 Design Procedures for Beveled-Edged Inlets ...................................................... 29 Section 4.2.7 Flood Routing and Culvert Design ........................................................................ 29 Section 4.3 Bridge Design ............................................................................................................. 29 Section 4.3.1 Overview................................................................................................................... 29 Section 4.3.2 Symbols and Definitions ........................................................................................ 29 Section 4.3.3 Design Criteria ......................................................................................................... 29 Section 4.3.4 Design Procedures .................................................................................................. 29 Section 4.4 Open ChannelDesign ................................................................................................ 29 Section 4.4.1 Overview................................................................................................................... 30 Section 4.4.2 Symbols and Definitions ........................................................................................ 30 Section 4.4.3 Design Criteria ......................................................................................................... 30 Section 4.4.4 n Values ................................................................................................. 33 Section 4.4.5 Uniform FlowCalculations ..................................................................................... 33 Section 4.4.6 Critical Flow Calculations....................................................................................... 33 Section 4.4.7 Vegetative Design..................................................................................................... 33 Section 4.4.8 Stone Riprap Design ............................................................................................... 34 Section 4.4.9 Gabion Design ......................................................................................................... 34 Section 4.5 Storage Design........................................................................................................... 34 Section 4.5.1 General Storage Concepts ..................................................................................... 36 Section 4.5.2 Symbols and Definitions ........................................................................................ 36 Section 4.5.3 General Storage Design Procedures ..................................................................... 36 Section 4.5.4 Preliminary Detention Calculations ....................................................................... 36 Section 4.6 Outlet Structures ........................................................................................................ 36 Section 4.7 Energy Dissipation ..................................................................................................... 36 Section 4.7.1 Overview................................................................................................................... 36 Section 4.7.2 Symbols and Definitions ........................................................................................ 37 Section 4.7.3 Design Guidelines ................................................................................................... 37 Section 4.7.4 Riprap Aprons ......................................................................................................... 37 Section 4.7.5 Riprap Basins .......................................................................................................... 37 Section 4.7.6 Baffled Outlets ......................................................................................................... 37 Section 4.7.7 Grade Control Structures ....................................................................................... 37 Section 4.8 Easements for Open Channels and Detention Ponds ............................................ 37 CHAPTER 5 - STORM WATER CONTROLS ................................................................... 39 I SWM LIST OF TABLES Table 2.1.1-2 Constraints on Using Recommended Hydrologic Methods ............................................. 16 Table 2.1.4-2 Runoff Coefficients .......................................................................................................... 17 Table 3.1.3-1 Typical Street Sections and Storm Sewer Criteria ........................................................... 22 Table 3.2.8-3 Coefficients for Storm Drain Conduits ............................................................ 24 Table 3.4-1 Closed Conduit Easements ................................................................................................ 27 LIST OF FIGURES Figure 2.1.6-1 Computation Sheet Hydrology by Unit Hydrograph Method ....................................... 18 Figure 4.4.3-1 Minimum Erosion Control Setback ................................................................................. 32 INTRODUCTION This design criteria is needed to update the policies and criteria for storm water facilities within the Town of Westlake and its extraterritorial jurisdiction. New policies and criteria are needed to reflect the changes that have occurred in community standards, technology and environmental regulations that impact storm water management. The primary motivation for this new manual is to guide the community in drainage policy and criteria so that new development does not increase flooding, erosion, and water quality problems. This drainage design criteria is intended to provide a guideline for the most commonly encountered storm water or flood control designs in the Town of Westlake. It can also be used as a guide for watershed master plans and for design of remedial measures for existing facilities. This criteria was developed for users with knowledge and experience in the applications of standard engineering principles and practices of storm water design and management. There will be situations not completely addressedor covered by this design criteria manual. Any variations from the practices established herein must have the acceptance of the Town Engineer or designee. Close coordination with the staff of the Town is recommended and encouraged during the planning, design and construction of all storm water facilities. Relationship of Town of Westlake to the Regional integrated Storm Water Management (iSWM) Manual The Town of Westlake design criteria is the regional iSWM manual updated in 2021, developed by the North Central Texas Council of Governments (NCTCOG) with clarifications and modifications indicated in this Criteria exception of those sections specifically modified herein. Precedence of Town of Westlake Local Criteria The requirements contained withinthis Town of Westlake Local Criteria shall take precedence over conflicting provisions that may be contained in the integrated Storm Water Management Manual approved by the North Central Councilof Governments. Contact Informatin Contacts for the Town of Westlake Storm Water Management Design Manual can be reached atthe Town of Westlake. (website: https://www.westlake-tx.org). For information on the iSWM regional manual and program, contact the NCTCOG at 817-695-9191 or at the website: http://iswm.nctcog.org. GOALS AND OBJECTIVES OF THE TOWN OF WESTLAKE STORM WATER MANAGEMENT PROGRAM 1. Establish and implement drainage policy and criteriaso that new development does not create or increase flooding problems, cause erosion or pollute downstream water bodies. 2. Facilitate the continuation of comprehensive watershed planning that promotes orderly growth and results in an integrated system of public and privatestorm water infrastructure. 3. Minimize flood risks to citizens and properties, and stabilize or decrease streambank and channel erosion on creeks, channels, and streams. 4. Improve storm water quality in creeks, rivers, and other water bodies, remove pollutants, enhance the environment and mimic the natural drainage system, to the extent practicable, in conformancewith the Texas Pollutant Discharge Elimination System (TPDES) permit requirements. 5. Supportmulti-use functions of storm water facilities for trails, green space, parks, greenwaysor corridors, storm water quality treatment, and other recreational and natural features, provided they are compatible with the primary functions of the storm water facility. 6. Encourage a morestandardized, integrated land development process by bringing stormwater planning into the conceptual stages ofland development. 2 TOWN OF WESTLAKE STORM WATER POLICY STATEMENTS 1. All developmentwithin the Town of Westlake Town Limits shall include planning, design, and construction of storm drainage systems in accordance with this Storm Water Management Design Manual, and Planning Commission Rules and Regulations. 2. Conceptual, Preliminary and Final Drainage Studies and Plans may be required for proposed developments within the Town of Westlake, in conformance with this Storm Water Management Design Manual. Specific submittal requirements depend on the complexity of the project and requirements of the Subdivision Ordinance and Zoning Ordinance. The checklists for each stage of this three-tier process are included in the iSWM Manual. 3. All drainage related plans and studies shall be prepared and sealed by a Licensed Professional Engineer with a valid license from the State of Texas. The Engineer shall attest that the design was conducted in accordance with this Storm Water Management Design Manual. 4. For currently developed areas within the Town of Westlake with planned re-development, storm water discharges and velocities from the project should not exceed discharges established by procedures presented in this manual but also shall not exceed discharges and velocities from current (existing) developed conditions, unless the downstream storm drainage system is designed (or adequate) to convey the future (increased) discharges and velocities. 5. All drainage studies and design plans shall be formulated and based upon ultimate, fully developed watershed or drainage area runoff conditions. In certain circumstances where regional detention is in place or a master plan has been adopted, a development may plan to receive less than ultimate developed flow from upstream areas withthe approval of the Town Engineer, or Designee. The rainfall frequency criteria for storm water facilities, as enumerated within this Storm Water Management Design Manual, shall be utilized for all drainage studies and design plans. 6. Proposed storm water discharge rates and velocities from a development shall not exceed the runoff from existing, pre-development conditions, unless a detailed study is prepared that demonstrates that no unacceptable adverse impacts shall be created. Adverse impacts include: new or increased flooding of existing structures, significant increases in flood elevations over existing roadways, unacceptable rises in base flood elevations or velocities, and new or increased stream bank erosion or increased occurrence of nuisance flows. 7. If a proposed development drains into an improved channel or storm water drainage system designed under a previous Town of Westlake drainage policy, then the hydraulic capacities of downstream facilities must be checked to verify that increased flows, caused by the new development, shall not exceed the capacity of the existing system or cause increased downstream structure flooding. If there is not sufficient capacity to prevent increased downstream flooding, then detention or other acceptable measures must be adopted to accommodate the increase in runoff due to the proposed development. 8. Storm water runoff may be stored in detention and retention basins to mitigate potential downstream problems caused by a proposed development. Proposed detention or retention basins shall be analyzed both individually and as a part of the watershed system, to assure compatibility with one another and with the Towns storm water management master plans for that watershed (if available). Storage of storm water runoff, near points of rainfall occurrence, such as the use of parking lots, ball fields, property line swales, parks, road embankments, borrow pits and on-site ponds is desirable and encouraged. 9. Alternatives to detention or retention for mitigation of potential downstream problems caused by proposed development include: acquisition of expanded drainage easements, ROW, or property owner agreements; downstream channel and/or roadway bridge/culvert improvements or stream bank erosion protection; and financial contributions to the Town Storm Water Program for future 3 10. improvements. These alternatives shall be considered by the Town Engineer, or designee, on a case- by-case basis. 11. All proposed developments within the Town of Westlake City Limits shall comply with all local, county, state and federal regulations and all required permits or approvals shall be obtained by the developer. 12. The policy of the Town is to avoid substantial or significant re-routing or transfer of stormwater runoff from one basin to another and to maintain historical drainage paths whenever possible. However, the re- routing or transfer of storm water from basin to basin may be necessary in certain instances and shall be reviewed and a variance can be made by the TOWN ENGINEER or designee, in accordance with established variance procedures. 13. Town Maintenance - The Town shall provide for perpetual maintenance, in accordance with adopted Town maintenance standards, of all public drainage structures located within dedicated easements and constructed to the standards. Access shall be provided and dedicated by the developer to all public storm water facilities in developments for maintenance and inspection by the Town. The Town does not generally provide maintenance of vegetative cover inside subdivision or other private properties, even withinpublic drainage easements. 14. Private Maintenance - Private drainage facilities include those drainage improvements which are located on private property and which handle only private water. Private drainage facilities may also include detention or retention ponds, dams, and other storm water controls which collect public water, as well as drainage ways not constructed to Town standards, but which convey public water. Such facilities must be designed in accordance with sound engineering practices and reviewed and inspected by the Town. An agreement for perpetual maintenance of private drainage facilities serving public water shall be executed with the Town prior to acceptance of the final plat. The title and ownership agreement shall run dual residential lots. Access shall be provided by the developer/owner to all private drainage facilities where there may be a public safety concern for inspection by the Town. The Town does not generally provide maintenance of vegetative cover inside subdivision or other private properties, even within public drainage easements. However, if a determination is made by the Town Engineer or designee that the Town needs emergency access to any private improvement or private waters, it has the right to enter the private property for corrective actions. While the Town has the right to this access and actions, it is never under any obligation to do so. 4 SECTION 1 STORM WATER MANAGEMENT SYSTEM PLANNING AND DESIGN Chapter 1 of the iSWM Manual provides afoundation for integrated Storm WaterManagement in terms of basic philosophy, principles, definitions, and land development site planning and design practices, and should therefore be utilizedfor general guidance throughout the development process. In general, the Town of Westlake currently follows the flood control and streambank protection components of the integrated planning and design approach. Streambank protection is a requirement in Westlake, but there is not a standard requirement to provide extended detention for the streambank protection volume. To comply with TCEQ permit TXR040000, theMS4 Phase II permit, the Town of Westlake requires the use of best management practices (BMPs)to address post construction water quality for all new development and redevelopment projects. The NCTCOG iSWM Manual identifies the use of certain site design practices and structural measures as BMPs to address post construction water quality. It isexpected some use of both site design and structural measures shall be used in development projects to meet this requirement. Other modifications are summarized below. Section 1.1 Storm Water Site Planning Depending on the complexity of the project or submittal requirements as dictated in the Code of Ordinances, storm water management plans may be prepared and submitted to the Town of Westlake in the progressive planning stages of a land development project with the Conceptual Site Plan and Preliminary Site Evaluation and Final Plat. The Conceptual Site Plan is an important consideration in that it allows the developer and their design engineer to propose a potential site layout and gives Town staff the opportunity to comment on a storm water management plan concept prior to significant planning and design effort on the part of the design engineer. Conceptual Storm Water Management Plan (iSWM 1.1.3.5) In general, the engineer and planner shall follow the conceptual storm water management plan guidelines as presented in Section 1.1.3.5 of the iSWM Manual, as applicable to the Town of Westlake. Preliminary Storm Water Management Plan (iSWM 1.1.3.6) A preliminary drainage study and storm water management plan shall accompany a preliminary site evaluation submitted for development review, and shall generally include the information listedin Section 1.1.3.6 of the iSWM manual as applicable to the Town of Westlake. Thestudy shall include a downstream assessment of properties that could be impacted by the development. These studies shall include adequate hydrologic analysis to determine the existing, proposed, and fully-developed runoff for the drainage area that is affectedby the proposed development and shall include hydraulic studies that define the The development storm water management plan shall address existing downstream, off-site drainage conveyance system(s); and shalldefine the discharge path from the outlet of the on-site storm water facilities to the off-site drainage system(s) and/or appropriate receiving waters. See Section 2.1.9 of the iSWM Manual Hydrologic for guidance on the details of this downstream assessment. As a minimum, the Town of Westlake requires assessment of the 2-, 10-, 25-and 100- year 24- hour events. This preliminary drainage study and storm water management plan shall include: 1. A topographical map of the entire watershed (not just the area ofthe proposed development) generally not smaller than 1"=200' (or other such scale approved by the Town Engineer or designee), delineating the watershed boundary(s) and runoff design 5 point(s), existing and proposed land use and zoning, and the size and description of the outfall drainage facilities and receiving streams. 2. Computation tables showing drainage areas, runoff coefficients, time of concentration, rainfall intensities and peak discharge for the required design storms, for both existing and proposed (ultimate development) conditions, at all design points for each component of the storm water system (streets, pipes, channels, detention ponds, etc.). 3. Any proposed changes to watershed boundaries (i.e. by re-grading, where permissible by Texas Water Code). If significant changes to watershed boundary are made, more extensive analyses of downstream impact and mitigating detention shall be required and a variance obtained from the Town Engineer or designee. 4. FEMA Flood Hazard Areas - if applicable. 5. In addition any required Corps of Engineer's Section 404 permits, Conditional Letters of Map Revision (CLOMR), Letters of Map Revision (LOMR) or other permits relating to lakes and streams required by any federal, state or local authorities. These must be documented in the Drainage Study. 6. Detailed off-site outfall information. This shall include the presence of existing or proposed drainage structures, bridges or systems; documentation of existing versus proposed developed site as well as ultimate runoff, identification of downstream properties which might be impacted by increased runoff, and proposed detention or other means of mitigation. Downstream impacts shall generally be delineated to a point where the drainage from the proposed development has no impact on the receiving stream or on any downstream drainage systems within the "zone of influence". 7. Report with technical documentation. Final Storm Water Management Plan (iSWM 1.1.3.7) A Final DrainageStudy and Storm Water Management Plan for development of all or a portion (i.e. phase one or phase two, etc.) of the overall development shall be prepared and submitted to the Town of Westlake. This submittal shall generally include the information listed in Section 1.1.3.7 of the iSWM manualas applicable to Westlake,including: 1. Conformance with the Preliminary Storm Water Management Plan and Study. 2. Submission of detailed drainage calculations and detailed design plans. 3. The submission of a cover sheet signed by the Town Engineer or designee indicating the approval of the detailed construction drawings for the proposed development is sufficient to clear a plat drainage study comment. 4. Final drainage studies shall be approved based on the submission of a signed cover sheet and drainage map with calculations from the accepted engineering construction drawings. Where Town acceptance of construction plans is not required, the above information required for preliminary drainage studies, as well as construction plans for any drainage improvements, prepared according to criteria in the current Town of Westlake plan review checklists, shall be submitted. 5. Note that unless specifically approved in a Floodplain Development Permit issued through the TOWN ENGINEER or DESIGNEE, no work may be performed in the FEMA regulatory floodway without a FEMA- approved Conditional Letter of Map Revision (CLOMR). No development activities may occur in the FEMA regulatory floodplain without an accepted Floodplain Development Permit. 6 Section 1.1.2 integrated Storm Water Management (iSWM) Site Plans ADOPTED WITH MODIFICATIONS In general, the Town of Westlake currently follows the flood control and streambankprotection components (corrected spelling)of the integrated planning and design approach. Streambank protection is a requirementin Mansfield, but there is not a standard requirement to provide extended release detention for the streambank protection volume. To comply with TCEQ permit TXR040000, the MS4 Phase II permit, the Town of Westlake requires the use of best management practices (BMPs) to address post construction water quality for all new development and redevelopment projects. The NCTCOG iSWM Manual identifies the use of certain site design practices and structural measures as BMPs to address post construction waterquality. It is expected some use of both site design and structural measures shall be used in developmentprojects to meet this requirement. TheseBMPs shall be identified in development site plans, with designcriteria and calculations when necessary, at conceptual, preliminary and final submittal stages. Section 1.1.2.2 Applicability ADOPTEDWITH MODIFICATIONS Storm Water Management plans are required for development or within the Town of Westlake, of 0.5 acres or more unless exempted by theTown Engineer, or designee. Section 1.1.3 Developer Steps to Prepare an iSWM Site Plan ADOPTED WITH MODIFICATIONS See Local Criteria Section 1.1 for a description of Town of Westlake requirements. Section 1.1.4 Local Community Plan Review Responsibilities FOR GUIDANCE Section 1.1.5 Local Government Responsibilities during Construction and Operation ADOPTED WITH MODIFICATIONS The Town of Westlake Process includes: Construction Phase 1. Pre-construction Meeting - Where possible, a pre-construction meeting shall occur before any clearing or grading is initiated on thesite. This step ensures that the owner-developer, contractor, engineer, inspector, and plan reviewer can be sure that each party understands howthe plan shall be implemented on the site. 2. Periodic Inspections - Periodic inspections during construction by Town of Westlake representatives. Inspection frequency may vary with regard to site size and location. 3. Final Inspection - A final inspection is needed to ensure that the construction conforms to the intent of the approved design. Prior to accepting the infrastructure components, issuing an occupancy permit, and releasing any applicable bonds, the owner-developer and contractor shall ensure that: (a) erosioncontrol measures have been removed; (b) storm water controls are unobstructed and in good working order; (c) permanent vegetative cover has been established in exposed areas; (d) any damage to natural feature protection and conservation areas have been mitigated; (e) conservation areas and buffers have been adequately marked or signed; and(f) any other applicable conditions have been met. 4. Record Drawings - Recorddrawings of the structural storm water controls, drainage facilities, and other infrastructure components shall be provided to the Town of Westlake by the developer in accordance with the Town of Westlake ordinance. Maintenance 7 1. Maintenance Plan - If private maintenance is planned, a maintenance plan, prepared by the developer, shalloutlinethescopeof activities, schedule,costs,funding source,and responsible parties. Vegetation, sediment management, access, and safety issues shall be addressed. 2. Notification of Property Owners - If applicable, the Town of Westlake shall notify property owners of any maintenance responsibilities, through a legal disclosure, upon sale or transfer of property. Ideally, preparation of maintenance plans should be a requirement of the iSWM Site Plan preparation and review process. 3. Ongoing Maintenance itshall be clearly detailed in the Final Storm Water Management Plan which entity has responsibility for operation and maintenance of all structural storm water controls and drainage facilities (see Town of Westlake Policy Statements regarding maintenance). 4. Annual Inspections - Annual inspections of private storm water management facilities shall be conductedby the owner and the results shall be provided to the Town of Westlake. Section 1.1.6 iSWM Site Plan Design Tools FOR GUIDANCE Section 1.2 integrated Planning and Design Approach ADOPTED WITH MODIFICATIONS In general, the Town of Westlake currently follows the flood control and streambank protection components of the integrated planning and design approach. Streambank protectionis a requirement in the Town of Westlake, but there is not a standard requirement to provide extended release detention for the streambank protection volume. To comply with TCEQ permit TXR040000, the MS4 PhaseII permit, the Town of Westlake requires the use of best management practices (BMPs) to address post construction water quality for all new development and redevelopment projects. The NCTCOG iSWM Manual identifies the use of certain site design practices and structural measures as BMPs to address post construction water quality. It is expected some use of both site design and structural measures shall be used in development projects to meet this requirement. Section 1.2.1 Introduction ADOPTED Section 1.2.2 Downstream Assessment ADOPTED WITH MODIFICATIONS. The downstream assessment described in Section 2.1.9 of the iSWM Manual shall include the necessary hydrologic and hydraulic analyses to clearly demonstrate that the limits of the Zone of Influence have been identified, and that along the drainage route to that location, these parameters are met: 1. No new or increased flooding of existing structures. 2. Assume fully-developed upstream conditions based upon the land uses in the Comprehensive Plan. If any area is unknown, the minimum runoff coefficient of c = 0.65 shall be used. 3. No significant increases in flood elevations over existing roadways for the 2-, 25-, and 100-year floods. 4. No significant rise in 100-year floodelevations, unless contained in existing channel, roadway, drainage easement and/or R.O.W. 5. No significant increases in channel velocities for the 2-, 10-, 25-, and 100-year floods. Post- development channel velocities cannot be increased above pre-development velocities,if they exceed the applicable maximum permissible velocity shown in iSWM Table 4.4-2. Exceptions to these criteria shall require certified geotechnical/geomorphologic studies that provide documentation those higher velocities shall not create additional erosion. 6. No increases in downstream discharges caused by the proposed development that, in combination with existing discharges, exceeds the existing capacity of the downstream storm drainage system. 8 Section 1.2.3 Water Quality Protection ADOPTED WITH MODIFICATION The Town of Westlake shall consider proposals for development that implement site design practices and secondary control measures (as defined in the iSWM Manual) as a means of achieving compliance with the MS4 Permit. If these proposals are not sufficient to effectively achieve post construction water quality goals then primary structural post- construction control measures shall be used in conjunction with, or in lieu of, site design practices. The water quality protection volume calculation may only be requiredif primary structural post-construction control measures are employed. Section 1.2.4 Stream Bank Protection ADOPTED WITH MODIFICATIONS Streambank protection is a requirement in the Town of Westlake, but there is not a standard requirement to provide extended release detention for the streambank protection volume. Section 1.2.5 Flood Control ADOPTED Section 1.2.6 integrated Watershed Planning ADOPTED Section 1.3 integrated Site Design Practices ADOPTED WITH MODIFICATIONS This section provides general guidance for potentially reducing costs ofstorm water infrastructure construction and the negative impacts of development on flooding, stream stability and water quality. Numerous examples of integrated site design practices are included. These are examples of site design BMPs that may assist a project in meeting the post-construction water quality requirements of the MS4 Permit. Section 1.3.1 integrated Site Design Credits FOR GUIDANCE The Town of Westlake has not adopted a point or credit systemat this time. Each developmentshall be evaluated on the merits of the proposed design practices and post- construction structural control measures. Section 1.4 integrated Storm Water Controls ADOPTED WITH MODIFICATIONS This section contains a list of broad categories of structural post-construction control measures that are considered BMPs and can be implemented in land development to meet the goals of protecting water quality, minimizing streambank erosion, and reducing flood volumes. Many of the listed storm water control features and techniques enhance the aesthetics and value of land developments, as well as providing a drainage function. The Town of Westlake requires the removal of at least 80% T.S.S. These BMPs generally fallinto a primary or secondary treatment category based on efficiency of removingTSS. Many secondary control measures are also considered site design practices discussed in Section 1.3. Most primary control measures are structural in nature, require the calculation of the water quality protection volume and have a detailed design criteria and procedures discussed in detail in Chapter 5 of the iSWM Manual. 9 Some proprietary systems may qualify as primary control structures. Evidence of treatment efficiencyshall besubmittedwhen thesesystemsareproposed.Itis strongly recommended that proprietary systems meet TAPE (TechnologyAssistance Protocol) or TARP (Technology Acceptance Reciprocity Partnership) approval. 10 SECTION 2 HYDROLOGIC ANALYSIS Section 2.1EstimatingRunoff Section 2.1.1 Introduction to Hydrologic Methods ADOPTED WITH MODIFICATIONS Water qualityvolume and stream bank protection volume applications are encouraged by the Town of Westlake but not specifically required at this time. USGS and TxDOTequations are only allowed with the approval of the Town Engineer, or designee. Table 2.1.1-2 See modified version of Table 2.1.1-2 below (differences from iSWM Manual are in bold type. Table 2.1.1-2 Constraints on Using Recommended Hydrologic Methods 1 Method Size Limitations Comments Method for estimating peak flows and the design of small site 1 0 200 acres Rational or subdivision storm sewer systems. Method can be used for detention planning in drainage areas up to 200 acres and for final design in single basins. 1, 0 25 acres Modified Rational However, modified rational method is not allowed for basins in series. Method can be used for estimating peakflows and UnitHydrograph (SCS) Any Size hydrographs for all design applications. 100 acres and Method can be used for estimating peakflows and Unit Hydrograph larger hydrographs for all design applications. TXDOT Method can be used for estimating peakflows for rural design 2 10 to 100 mi Regression applications. Equations USGS 2 Method can be used for comparison with other methods 3 40 mi Regression Equations . 1 MRM Methodology shall be as defined in Section 1.5.2 of the iSWM Hydrology Technical Manual. Section 2.1.2 Symbols and Definitions ADOPTED Section 2.1.3 Rainfall Estimation ADOPTED WITH MODIFICATIONS The rainfall intensities listed in the iSWM Manualfor Tarrant County shall be used throughout the Town of Westlake Section 2.1.4 Rational Method ADOPTED Section 2.1.4.3 Equations ADOPTED Section 2.1.4.4 Time of Concentration ADOPTED. 11 Section 2.1.4.6 Runoff Coefficient (C) ADOPTED WITH MODIFICATIONS Table 2.1.4-2presents the nominal Rational Formula Runoff Coefficients for the Town of Westlake. Other coefficientsare presented in Table 2.1.4-2 of the iSWM Manual. Table 2.1.4-2 Runoff Coefficients Runoff % Description of Land Use Impervious Coefficient "C" 35 0.51 37 Residential " 0.52 49 Residential " 0.59 55 Residential "R0.5 0.63 93 0.86 Multi-family Commercial/Industrial/House of Worship/School 96 4% Open Space (Default if no site plan) 0.88 90 10% Open Space (Site plan required) 0.84 80 20% Open Space (Site plan required) 0.78 7 0.34 Parks, Cemeteries 100 Streets: Asphalt, Concrete andBrick 0.90 100 Drives, Walks, andRoofs 0.90 43 Gravel Areas 0.56 0 Unimproved Areas 0.30 Assumptions: (1) For Residential Calculations: 1. Current CFW development standards for minimum lot size and maximum lot coverage (structure) for each classification 2. Assumed Parkway and driveway 3. Assumed -B street dimension 4. Calculated by applying 90% runoff from impervious areas and 30% runoff from pervious areas (2)Calculated from designated set-backs Section 2.1.4.7 Example Problem ADOPTED Section 2.1.5 SCS Hydrologic Method ADOPTED Section 2.1.5.2 Application ADOPTED 12 Method Hydrograph Unit by Hydrology Sheet Computation 1 - 2.1.6 Figure Section 2.1.6 Unit Hydrograph Method Section 2.1.6.1 Introduction ADOPTED Figure 2.1.6-1 presents asample computation sheet for presentation of unit hydrograph method results. This form should be completed even if the computations are performed on acceptable computer programs HEC-1 or HEC-HMS. Section 2.1.6.2 Application ADOPTED WITH MODIFICATIONS Sections 2.1.6.3 through 2.1.6.6 ADOPTED Section 2.1.7 Modified Rational Method Section 2.1.7.1 Introduction ADOPTED Section 2.1.7.2 - Design Equations ADOPTED WITH MODIFICATIONS An exception to the iSWM Method is that only coefficients presented in Local Criteria Table 2.1.4-2 and iSWM Table 2.1.4-2 (Not sure if or why these shall remain the same once I get electronic versions.) are allowedfor use in the Modified Rational Method. The remaining methodology is allowed. Section 2.1.7.3 Example Problem ADOPTED Section 2.1.8 USGS and TxDOT Regression Methods ADOPTED Section 2.1.9 Downstream Hydrologic Assessment ADOPTED Section 2.1.10 Water Quality Protection Volume and Peak Flow ADOPTED Section 2.1.11 Streambank Protection Volume Estimation ADOPTED Section 2.1.12 Water Balance Calculations ADOPTED References ADOPTED CM-14 Section 3 HYDRAULIC DESIGN OF STREETS AND CLOSED CONDUITS Section 3.1StormWaterStreet andClosed ConduitDesignOverview Section 3.1.1 Storm Water System Design ADOPTED Section 3.1.2 Key Issues in Storm Water System Design For Guidance Section 3.1.3 Design Storm Recommendations ADOPTED WITH MODIFICATIONS The design storms presented in iSWM are replaced by the design storms required by Town of Westlake as follows: Storm Sewer System The Town of Westlake utilizes additional criteria to improve capacity and levels of protection to adjacent properties to both open flow and closed conduit drainage systems. a. Unless otherwise directed by the Town Engineer or designee, the 100-year storm is the design storm for closed conduit systems. The closed conduit hydraulic grade line (HGL) must be one and one-half (1.5) feet or more below the top of curb. b. In addition to the HGL computations, the design engineer shall also verify that the inlet depth is sufficient to provide a height of at least 1.2 HW/D to ensure the system functions /inlet and At an HW/D depth of 1.2 or greater, inlets and culverts shall function under sub-critical flow at the entrance/inlet.Most open channels systems flow under super-critical depths, a hydraulic jump can be expected at the entrance to most culverts. The design engineer shall estimate the location and height of this hydraulic jump to know how high to raise any channel or erosion protection features, headwalls finished floor elevations on adjacent lots, etc. Section 3.2 On-Site Flood Control System Section 3.2.1 Overview Street capacities shall be designed for the 100-year frequency storm. For streets with a raised curb and gutter, one (1) lane of traffic in each direction shall be maintained during the 100-year frequency storm. At no time shall the depth of flow exceed curb height. For streets with no curb and gutter, and open bar ditches for conveying stormwater flows, the 100-year frequency storm flows must be contained within the bar ditches. Inlets shall be placed upstream of all intersections with streets with raised curb and gutter to minimize bypass flow across the intersection. No stormwater flow shall be allowed to bypass inlets at the intersection of two thoroughfares. Residential and collector road intersections shall be designed such that flow across a valley gutter shall not exceed two (2) inches in the design frequency storm. CM-15 Section 3.2.2 Symbols and Definitions ADOPTED Section 3.2.3 Street and Roadway Gutters ADOPTED Section 3.2.4 Storm Water Inlets ADOPTED Section 3.2.5- GrateInlet Design ADOPTED WITH MODIFICATIONS Section 3.2.6 Curb InletDesign ADOPTED WITH MODIFICATIONS Curbinletsongradewithouta gutterline depressionarenotpermittedbytheTown of Westlake. Section 3.2.6.1 Curb Inlets in Sumps ADOPTED WITH MODIFICATIONS In order to accommodate the standard curb inlet configuration presented in Construction the following supplement to Section 3.2.4.1 of iSWM from Hydraulic Engineering Circular 22 by FHA (August, 2001) is presented. The weir for a depressed curb-opening inletis at the edge of the gutter, and the effective weir length is dependent on the width of the depressed gutter and the length of the curb opening. The weir location for a curb-opening inlet that is not depressed is at the lip of the curb opening, and its length is equal to thatof the inlet. The equation for the interception capacity of a depressed curb-opening inlet operating as a weir is: 1.5 Q= C(L + 1.8 W) d i w where: C= 1.25 (2.3 In English Units) w L = length of curb opening (ft) W = lateral width of depression (ft) D = depth at curb measured from the normal cross slope (ft), i.e., d =T S x The weir equation is applicable to depths at the curb approximately equal to the height of the opening plus the depth of the depression. Thus, the limitation on the use of the above equation for a depressed curb-opening inlet is: d h + a /(1000) (d h + a/12, in English units) where: h = height of curb-opening inlet, (ft) a = depth of depression, (in) CM-16 Section 3.2.7 Combination Inlets ADOPTED WITH MODIFICATIONS Combination inlets on grade are not permitted by the Town of Westlake. Section 3.2.8 Closed Conduit Systems ADOPTED WITHMODIFICATIONS Materials Only reinforced concrete pipe (RCP) is allowed in public Right(s)-of-way and/or Easements. Wye and tee (T) connections supplied by the pipe manufacturer are required. Radial pipe can also be fabricated by the pipe manufacturer and shall be used through all curved alignments. However, the design engineer shall be use bends or large radii curves where practical. When field connections or field radii must be used, all joints and gaps must be fully grouted with a concrete collar to prevent voids or long- term cave-ins caused by material washout into the storm sewer system by substandard field connections. Minimum allowable size shall be 18 inches, and driveway permits shall be required from the Development Services Division. HDPE/CPVC pipe may be allowed for certain off-pavement applications only as approved by the Town Engineer or designee on a case-by-case basis. In no case shall HDPE/CPVC pipe be approved for installation under publicly maintained pavement. HDPE/CPVC storm drain shall be installed in accordance with all specifications and shall meet or exceed ASTM D- 2321, Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications. Furthermore, Class I aggregate (NCTCOG Aggregate Grade 4) shall be required for pipe embedment (to a minimum of above the top of pipe). In selecting roughnesscoefficients for concrete pipe, considerationshall be given to the average conditions at the site during the useful life of the structure. The value of 0.015 for concrete pipe shall be used primarilyin analyzing old sewerswhere alignment is poor and joints have become rough. If, for example, concrete pipe is being designed at a location where it is considered suitable, and there is reason to believe that the roughness would increase through erosion or corrosion of the interior surface, slight displacement of joints or entrance of foreignmaterials. A roughness coefficient shall be selected which in the judgment of the designer, shall represent the average condition. Any selection of values below the minimum or above the maximum, either for monolithic concrete structures, concrete pipe or HDPE, shall have to have written approval of the Town Engineer or designee. CM-17 The following recommended coefficients of roughness are listed in Table 3.2.8-1 and are foruseinthenomographscontainedherein,orbydirectsolutionofEquation. Table 3.2.8-1 Conduits* Type of Storm Drain n Concrete Pipe (Design n = 0.013) 0.012-0.015 Concrete Boxes (Design n = 0.015) 0.012-0.015 Corrugated Metal Pipe, Pipe-Arch and Box (Annular or Helical Corrugations - see Table 3.2-6 in iSWM 0.022-0.037 Manual. NOTE: TOWN OF WESTLAKE DOES NOT ALLOW CMP FOR NEW CONSTRUCTION Profile Wall High Density Polyethylene (HDPE) 0.010-0.013 or Polyvinyl Chloride (PVC) *NOTE:Actual field values for conduits may vary depending on the effect of abrasion, corrosion, deflection, and joint conditions. Section 3.2.8.2 Access Holes (Manholes) Adopted with Modifications Manholes shall be located at intervals not to exceed five-hundred (500) feet for pipe fifty-four (54) inches in diameter or smaller. For any pipes sixty (60) inches in diameter and larger (or equivalent size box culverts), the maximum spacing of manholes is one-thousand (1,000) feet. Manholes shall preferably be located at street intersections or sewer junctions. When the storm drain is a concrete box culvert instead of a reinforced concrete pipe, four (4) foot diameter manhole risers may be instead of vaults to provide access. In all cases, steps (or rungs) shall be installed from the base of the manhole to the top of the manhole Maximum vertical spacing of the steps shall not exceed twelve (12) inches. CM-18 Section 3.2.8.3 Minimum Grades and Desirable Velocities Adopted with Modifications The minimum grades for storm sewers are listed in Table 3.2.8-2.Any variances to the values below must have the prior acceptance of the Town Engineer or Designee. Pipe Size Concrete Pipe Slope (Inches) (Slope ft/ft) 18 0.005 21 0.0015 24 0.0013 27 0.0011 30-96 0.001 Table 3.2.8-2 The maximum hydraulic gradient shall not produce a velocity that exceeds twenty (20) feet per second (fps). The table above shows the desirable maximum velocities for the majority of closed conduit storm sewer systems. Storm drains shall be designed to have a minimum mean velocity flowing full at 2.5 fps. A storm sewer main is defined as any pipe connected to two or more inlets. The maximum velocities for various types of culverts are shown in Table 3.2.8-3. Any variances to these values must have the prior acceptance of the Town Engineer or Designee. Maximum Allowable Culvert Velocity (Description) (Feet per second) Culverts (All Types) 15 Storm Drain (Inlet Laterals) 25 Storm Drain (Mains) 20 Table 3.2.8-3 CM-19 Full or Part Full Flow in Storm Drains All storm drains shall be designed by the application of the Continuity Equation and Manning Equation either through the appropriate charts or nomographs or by direct solutions of the equations as follows: Q =A V, and 2/3 ½ Q =1.486 A rS where, f n Q =Runoff in cubic feet per second. A = Cross-sectional area of pipeor channel. V = Velocity offlow. n = Coefficientof roughness of pipe or channel. r = Hydraulic radius = A/P S= friction slope in feet per foot in pipe or channel. f p = Wetted perimeter. The size of pipe required to transport a known-quantity of storm runoff is obtained by substituting known values in the formula. In practice, the formula is best utilized in the preparation of a pipe flow chart which interrelates values of runoff, velocity, slope and pipe geometry. With two of these variables known or assumed. The other two are quickly obtained from the chart. A pipe flow nomograph for circular conduits flowing full graphs is shown in iSWM Figure 3.2.16. Nomographs for flow in conduits of other cross-sections are available in TxDOT Hydraulic Design Manual, dated March 2004, Chapter 6, Section 2. For circular conduits flowing partially full, graphs arepresented in iSWM Figure 3.2-18a. Hydraulic Gradient and Profile of Storm Drain In storm drain systems flowing full (or partially full as discussed above) all losses of energy through resistance with flow in pipes, by changes of momentum or by interference with flow patterns at junctions, must be accounted for by accumulative head losses along the system from its initial upstream inlet to its outlet. The purpose of accurate determinations of head losses at junctions is to include these values in a progressive calculation of the hydraulic gradient along the storm drain system. In this way, it is possibleto determinethe water surface elevation which shall exist at each structure. The rate of loss of energy through the storm drain system shall be represented by the hydraulic grade line. Since the hydraulic gradeline measures the pressure headavailable at any given point within the system. The hydraulic grade (HGL) line shallbe established for all storm drainage design in which the system operates under a head. In open channels, the water surface itself is the hydraulic grade line. The hydraulic grade line is often controlled by the conditions of the sewer outfall; therefore, the elevation of the tailwater pool must be known. The hydraulic gradient is constructed upstream from the downstream end, taking intoaccount all ofthehead losses that may occur along the line. iSWM Section 3.2.8.10 provides a table of coincident design frequenciesto assist with tailwater determination. The hydraulic gradient shall begin at the higher of the tailwater pool or depth of flow in the pipe at the downstream end for the downstream design storm. All head losses shall be calculated as if the storm drain system is in a sub-critical flow regime whether the system is flowing partially full or surcharged. Hydraulic calculations shallreflect partially full pipe where appropriate. Supercritical flow is allowed in main lines only with the acceptance of the Town Engineeror designee. If the system is in supercritical regime the section should be marked FLOW in both plan and profile views. The presence of supercritical regime should be confirmed by analyzing from downstream as well as upstream. CM-20 The friction head loss shall bedetermined by direct application of Equation or by appropriatenomographsorchartsasdiscussedinthefirstparagraphofthissubsection.Minorlosses due to turbulence atstructures shall be determinedby the procedure described in Section 3.2.8.11 of the iSWM manual. All HGL calculations shall be carried upstream to the inlet. The hydraulicgrade line shall in no case be above the surface of the ground or street gutter for the design storm. Allowance of head must also be provided for future extensions of the stormdrainage system. In all cases the maximum HGL must be below the depressed gutter lip at any inlet. All head losses shall be calculated as if the storm drain system is in a sub-critical flow regime whether the system is flowing partially full or surcharged. Hydraulic calculations shall reflect partially full pipe where appropriate. Super-critical flow is allowed in main lin lines only with the acceptance of the Town Engineer or designee. If the system is in supercritical regime, the presence of super-critical flow regime should be confirmed by analyzing the HGL (or EGL) from downstream as well as upstream. In the case of long lengths of storm sewer mains, the water surface elevation (WSE) is the depth of flow or also known as the d/D ratio. Minor Head Losses at Structures Calculations The following head losses at structures shall be determined for manholes, wye branches or bends in the design of closed conduits. See Figure 3.1 and Figure 3.2 for details of each case. Minimum head loss used at any structure shall be one-tenth (0-10) foot. The basic equation for most cases, where there are both upstream and downstream velocities, takes the form as set forth below with the various Table 3.2.8-4. 22 h= ( V) KV j 2j 1 () 2g 2g h j = Junction or structure head loss in feet V 1 = Velocity in upstream pipe/culvert in fps V 2 = Velocity in downstream pipe/culvert in fps = Junction or structure coefficient of loss K j CM-21 In the case where the manhole is at the very beginning of a line, or the line is laid with bends or on a curve, the equation becomes the following without any velocity of approach. 2 V _2__ h= j Kj 2g 0 0 0 60Bend 85%; 45Bend 70%; 22 1/2Bend 40% j are shown in Table 3.2.8-5 and the coefficients are used in the following equation to calculate the head loss at the obstruction: 2 V 2 h=K ------ j j 2g CM-22 City of Fort Worth Stormwater Criteria Manual Table 3.12 Junction or Structure Coefficient of Loss Reference Coefficient Case No. Description of Condition Figure K j I 3.8 Inlet on Main Line 0.50 II 3.8 Inlet on Main Line with Branch Lateral 0.25 III 3.8 Manhole on Main Line with 45º Branch lateral 0.50 IV 3.8 Manhole on Main Line with 90º Branch Lateral 0.25 V 3.8 Manhole on Main Line with no Branch 1.0 VI 3.9 45º Wye Connection or cut-in 0.75 VII 3.9 Inlet or Manhole at Beginning of Line 1.25 Conduit on Curves for 90º * 0.50 Curve radius = diameter VIII 3.9 0.25 Curve radius = 2 to 8 diam. 0.10 Curve radius = 8 to 20 diam. Bends where radius is equal to diameter 0.50 90º Bend 60º Bend 0.43 0.35 45º Bend IX 3.9 22-1/2º Bend 0.20 Manhole on line with 60º Lateral 0.35 0.75 Manhole on line with 22/1/2º Lateral o o * Where bends other than 90are used, the 90° bend coefficient can be used with the following percentage factor applied: 60- o o 85%, 45 70%, 22.5 40% Table 3.13 Head Loss Coefficients Due To Obstructions A/A*KA/A*K o j o j 1.05 0.10 3.0 15.0 1.1 0.21 4.0 27.3 1.2 0.50 5.0 42.0 1.4 1.15 6.0 57.0 1.6 2.40 7.0 72.5 1.8 4.00 8.0 88.0 2.0 5.55 9.0 104.0 2.2 7.05 10.0 121.0 2.5 9.70 * A/A= Ratio of area of pipe to area of opening at obstruction. o CM-23 CFWSEPTEMBER2015 335 appropriate nomographs or charts as discussed in the first paragraph of this subsection. Minor losses due to turbulence at structures shall be determined by the procedures described in Section 3.2.8.11 of the iSWM manual. All HGL calculations shall be carried upstream to the last inletor headwall in the proposed project. The ending HGL elevation at an inlet or structure shall be compared to the ratio of 1.2 HW/D to ensure both the HGL and/or headwater depth remains at least twelve (12) inches below the gutter lip. The green consistent. So I want to be sure we check that everywhere. The HGL shall in no case be above the surface of the adjacent ground or street gutter lip for the design storm. Allowance of head must also be provided for future extensions of the storm drainage system. In all cases, the maximum HGL must be 1.5-feet below the gutter lip at any inlet in the design frequency storm. contractions in pipes or box culverts are shown in Table 3.2.8-6, and the coefficients are used in the following equation to calculate the head loss at the change in section: 2 V H=K ------ j j 2g V = Velocity in smaller pipe Section 3.3 General Design and Construction Standards LOCAL CRITERIA SECTION ONLY Utilities In thedesign of a storm drainage system, the engineer is frequently confronted with the problem of crossings between the proposed storm drain and existing or proposed utilities such as water, gas and sanitary sewer lines. TheTown of Westlake prefers a minimum of two (2) vertical feet of clearance with all conflicting utilities. All utilities in the vicinity of aproposed storm drain shall be clearly indicated on bothplan and profile sheets. Headwalls, Culverts,and Other Structures For headwalls, culverts and other structures, Standard Construction Details adopted by the Town of Westlakeshallbeused.Theappropriatedetailsheetsfornon-standardstructuresshouldbe included in any construction plans. All headwalls and culverts should be extended to or beyond the street right-of- way. Minimum Pipe Sizes and Depths Minimum pipe sizes are diameter for mains and diameter for inlet leads.Minimum sizes of conduits of other shapes should have equivalent cross-sectional areas. Minimum depth of storm sewer from outside top of conduit to proposed top of curb is 30 inches. Inlets Curb inlets shall be 10, 15or20 feet in length and shall have depressed gutterline openings. No curb inlet less than ten (10) feet shall be allowed without prior acceptance by the Town Engineer, or designee. Recessed inlets shall be provided on minor collectors through arterial streets as described in Table 3.1.3-1. Proposed inlet lengths greater than 20 feet must be approved by the TOWN ENGINEER, or designee. Care should be taken inlaying out inlets to allow for adequate driveway access between the inlet and the far property line. Due to excessive clogging, grate inlets are not allowed on public storm drain except as specifically accepted by the TOWNENGINEER, or designee. Streets CM-24 To minimize standing water, the minimum street grade shall be 0.60%. Along a curve, thisgrade shall bemeasuredalongtheoutergutterline.Theminimumgradealongacul-de-sacoreyebrowgutter shall be 0.60%. Alternatively, elbows may be designed with a valley gutter along the normal outer gutterline, with two percent cross slope from curb to the valley gutter. The minimumgrade for any valley gutter shall be 0.60%. Where a crest or sag is designed on a residential street, a PVI shall be used instead of a vertical curve where the total gradient change is no more than one and one-half percent 1.5%). Flow in Driveways and Intersections At any intersection, only one street shall be crossed with surface drainage and this street shall be the lower classifiedstreet.Wherean alley orstreetintersectsastreet,inletsshallbeplaced inthe intersecting alley or street whenever the combination of flow down the alley or intersecting street would cause the capacity of the downstream street to be exceeded. Inlets shall be placed upstream from an intersection whenever possible. Surface drainage from a 25-year event may not cross any street classified as a thoroughfare or collector. Not more than 5.0 cfs in a 25-year event may be discharged per driveway at a business, commercial, industrial, manufacturing, or school site. Also, not more than 5.0 cfs may be discharged in a 25-year event from a street intersection with a major collector or arterial. In all cases, the downstream storm drainage system shall be adequate to collect and convey the flow, and inlets provided as required. The cumulative flows from existing driveways shall be considered and inlets provided as necessarywherethe flow exceedsthe specified design capacity of the street. Section 3.4 Easements for Closed Conduit Systems LOCAL CRITERIA SECTION ONLY Minimum easement requirements for storm sewer pipe shall be as follows: Table 3.4-1 Closed Conduit Easements Minimum Easement Width Pipe Size Required and under 15 Feet through 20 Feet through 25 Feet through 30 Feet The outside face of the proposed storm drain line shall be placed at least five (5) feet off either edge of the storm drain easement. The proposed centerline of overflow swales shall normally coincide with the centerline of the easement. Box culverts shallhave aneasementwidth equaltothewidth ofthe boxplustwenty(20)additional feet.The edge of the box should be located atleast five (5) feet from either edge of the easement. Drainage easements shall generally extend beyond an outfall headwall to provide for velocity dissipation devices and an area for maintenance operations. Drainage easements along a required outfall channel or ditch shall be provided until the flowline reaches an acceptable outfall. References ADOPTED WITH MODIFICATIONS Texas Department of Transportation, March 2004,Hydraulic Design Manual, Austin, Texas. Section 4 HYDRAULIC DESIGN OF CULVERTS, BRIDGES, OPEN CHANNELS, AND DETENTION STRUCTURES CM-25 Section 4.1 Storm Water Open Channels, Culverts, Bridges, and Detention Structure Design Overview Section 4.1.1 Storm Water System Design ADOPTED Section 4.1.2 Key Issues in Storm Water System Design ADOPTED Section 4.1.3 Design Storm Recommendations ADOPTED WITH MODIFICATIONS Roadway Culvert Design 100-year storm for fully developed watershed conditions. Bridge Design 100-year storm for fully developed watershed conditions. Open Channel Design 100-year storm for fully developed watershed conditions Energy Dissipation Design 100-year design for fully developedwatershed conditions. Storage (Detention BasinDesign) 2- year, 10-year,25-year and 100-year storm for the critical storm duration (i.e. 3 hour, 6 hour or 24 hour duration) that results in the maximum (or near maximum) peak flow. Analysis should consider both existing watershed plus developed site conditions and fully developed watershed conditions. Section 4.2 Culvert Design Section 4.2.1 Overview ADOPTED Section 4.2.2 Symbolsand Definitions ADOPTED Section 4.2.3 Design Criteria ADOPTED WITH MODIFICATIONS The Town of Westlake requires a 100-year design storm for fully developed watershed with the upstream water surface elevation (WSEL) below the adjacent curb. Only reinforced concrete culvert structures are acceptable. Section 4.2.4 Design Procedures ADOPTED Section 4.2.4.4 Nomographs ADOPTED WITH MODIFICATIONS Nomographs are not allowed by the Town of Westlake for final sizingof culverts with drainage areas greater than 10 acres. The use of nomographs for culverts with drainage areas greater than CM-26 10 acres requires approval of the CITY ENGINEER. The reference for nomographs is FHWA HDS-5.AbackwateranalysisusingHEC-RASisrequiredforculvertswithareasgreaterthan10 acres. Section 4.2.5 Culvert Design Example ADOPTED WITH MODIFICATIONS This procedure isacceptable for preliminary sizing of all culverts and final sizing of culverts with drainage areas of 10 acres or less unless accepted by the Town Engineer, or designee. Section 4.2.6 Design Procedures for Beveled-Edged Inlets ADOPTED WITH MODIFICATIONS This procedure is acceptable for preliminary sizing only. Section 4.2.7 Flood Routing and Culvert Design FOR GUIDANCE Section 4.3 Bridge Design Section 4.3.1 Overview ADOPTED Section 4.3.2 Symbolsand Definitions ADOPTED Section 4.3.3 Design Criteria ADOPTED Section 4.3.4 Design Procedures ADOPTED WITH MODIFICATIONS Backwater analysis shall be required using HEC-RAS for any proposed bridge to determine accurate tailwater elevations, velocities, headlosses,headwater elevations, profiles and floodplains affected by the proposed structure. If the current effective FEMA model is a HEC-2 model, the engineer has the option to either use that model,or convert to HEC-RAS for analysis of proposed conditions. Section 4.4 Open Channel Design ADOPTED WITH MODIFICATIONS Normal Depth(Uniform Flow) vs. Backwater Profile Depths: For uniform flowcalculations, the theoretical channel dimensions, computed by the slope-area methods outlinedin the iSWM manual, are generally to be used only for an initial dimension in the design of an improved channel. The Town Engineer, or designee may grant exceptions for small channels meeting the following criteria: 1. Drainage area 10 acres orless. 2. Completely contained on the development site ; 3. No nearby downstream restrictions (no significant backwater effects). CM-27 4. Flow conditions consistent with uniform flow assumption. The Town of Westlake requires a HEC-RAS backwater/frontwater analysis on any proposed open channel with a drainage area greater than 10 acres to determine the actual tailwater elevations, channel capacity and freeboard, and impacts on adjacent floodplains. If the current effective FEMA model for the stream is a HEC-2 model, the engineer has the option to either use that model, or convert to HEC-RAS for analysis of proposed conditions. Supercritical Flow Regime Supercritical flowshall not be allowed except under unusual circumstances, with special acceptance of the Town Engineer, or designee. However, for lined channels the analysis should include a mixed- flow regime analysis, to make sure no supercritical flow occurs. The Town of Westlake requires that the computed flow depths in designed channels be outside of the range of instability, i.e. depth of flow should beat least 1.2 timescritical depth. Channel Transitions or Energy Dissipation Structures or Small Dams A HEC-RAS model is a standard requirement for design of channel transitions (upstream and downstream), energy dissipation structures,and small dams. A backwater analysis shall be required by the City, to determine accurate tailwater elevation, headlosses, headwater elevations and floodplains affected bythe proposed transition into and out of an improved channel, any on-stream energy dissipating structures, and small dams (less than 6 feet). If the current effective FEMAmodel for the stream is a HEC-2 model, FEMA no longer recognizes HEC-2 as an acceptable model for submittal; therefore, the engineer shall convert to HEC-RAS for analysis of proposed conditions. For larger dams, a hydrologic routing shall be required, as well as hydraulic analysis, to determine impacts of the proposed structure on existing floodplains, floodways and adjacent properties. Section 4.4.1 Overview ADOPTED Section 4.4.2 Symbols and Definitions ADOPTED Section 4.4.3 Design Criteria ADOPTED Section 4.4.3.1 General Criteria ADOPTEDWITHMODIFICATIONS Earthen Channels Natural creeks shall remain in open natural condition when possible to preserve naturaldrainageways. When unable to preserve the natural creek the Town of Westlake encourages the use of constructed vegetated or permeable channels designed to create a morenatural environment. 1. An earthen channel shall have a trapezoidal shape with side slopes notsteeper than a 4:1 ratio and achannel bottom at least eight (8) feet in width with a minimum invert of one (1) foot in depth.. 2. The 100-year frequency storm with fully developed upstream conditions plus one (1) foot of freeboard must be provided within drainage easements. 3. The side slopes and bottom of an earthen channel shall be smooth, free of rocks, and contain aminimum of six (6) inches of topsoil. The side slopes and channel bottom shall be re-vegetated with grass or other acceptable vegetative material. No channel shall be accepted by the City until a uniform (e.g., evenly distributed, without large bare areas) vegetative cover at least in height with a density of 70% has been established. 4. Each reach of a channel requiring vehicular access for maintenance must have a ramp. In CM-28 general, reaches with maintenance access ramps should be located between bridges or culvertsbutindividualsituationsmayvary.Rampsshallbeatleastten(10)feetwideand have 15% maximum grade.Twelve-foot width is required if the ramp is bound by vertical walls. 5. Minimum channel slope is 0.0020 ft/ft unless accepted by the TOWN ENGINEER or designee. 6. Erosion protection to be provided at upper limits of improvements and outfall to the receiving stream. 7. All improved earthen channels shall include either Composite Low channel or channel. Criteria for each of these channels is as follows: a. Low Flow CompositeChannels- 1) Drainage area greater than 300 acres. 2) Minimum design discharge - 2% of fully developed 100 year peak discharge. 3) Maximum depth - 5 feet. Maximum side slope 4:1 (H:V). 4) Minimum bottom width- 8 feetunless accepted by the TOWN ENGINEER or designee. 5) Lined with riprap or gabions if design velocity exceeds 5 feet/second (also see iSWM sections 4.4.3 and 4.4.4). 6) Some meanders in alignment are acceptable as long as width of shelf between top of bank of low flow channel and toe of slope of main channel is not less than 10 feet. Minimum lateral slope of shelf is 1%. b. Trickle Channels- 1) Drainage area less thanor equal to 300 acres. 2) Design discharge - 2% of fully developed 100 year peak discharge. 3) Concrete or permeable armor such as gabions, mat or interlocking block-lined. 4) Minimum bottom width- 8 feet unless accepted by the TOWN ENGINEER or designee. 5) Maximum depth -5 feet. Maximum side slope dependent on type of lining. 8. The following guidelines shall be considered for buffer areasor zones along natural or constructed earthen channels: a. A minimum Erosion Control Setback on each side of natural channels based on a 4:1 (H:V) slope from the bottom of the bank to the natural ground adjacent to the bank plus an additional 15 feet. See Figure 4.4.3-1. b. Includeadjacent delineatedwetlands or critical habitats. c. Other buffer widths shall be considered if supported by specific engineering and environmental studies. 9. Landscaping shall beinstalled to allow earthen channels to evolve into a more natural environment. Tree or shrub plantings shall be required to enhance habitat of channels by providing shade once mature plant growth has been reached.Mature plantings must be considered in setting design values. CM-29 Figure 4.4.3-1 Minimum Erosion Control Setback Lined Channels In general, lined channels are discouraged and must have acceptance of the Town Engineer or designee. 1. Lined Channels shall be trapezoidal in shape and lined with reinforced concrete (or flexiblelining material as accepted by the Town Engineer, or designee.). Side slopes shall generally be no steeper than 2:1 unless accepted by the Town Engineer, or designee, as appropriatefor the lining material. The lining shall extend to and include the water surface elevation of the 100 year fully developed storm plus one foot freeboard. 2. The lined channel bottom must be a minimum of in width. (A minimum bottom width of 6 feet for overflow structures of storm sewer system sumps or where access is not aconcern, as approved by the Town Engineer, or designee.) 3. The maximum water flow velocityin a lined channel shall be fifteen (15) feet per second except that the water flow shall not be supercritical in an area from upstream from a bridge to downstream from a bridge. Hydraulic jumps shall not be allowed from the face of a culvert to upstream from that culvert. In general channels having supercritical flow conditions are discouraged (See Section 4.4). 4. Whenever flow changes from supercritical to subcritical channel protection shall be provided to protect from the hydraulicjumpthat is anticipated (see comment in Item 3). 5. The design ofthe channel lining shall take into account the super elevation of the water surface around curves and other changes in direction. The outside wall of the lining shall be raised in an amount equal to the super-elevation of the channel so freeboard always exists to the design frequency storm. 6. A chain link fence six (6) feetin height or other fence as accepted by the Town Engineer, or designeemay be required on each side of a lined channel. 7. The Town Engineer, or designee, may require a geotechnical study and /or an underground drainage system design option prior to approval of concrete lined channels. CM-30 Soil Retention Blankets SoilRetention Blankets shall be required on all earthen channel side slopes and bottoms. Guidance is provided by the Texas Department of Transportation (TxDOT) concerning synthetic blankets and mats for use as slope protection and flexible channel liners. These systems shall be installed per the recommendations to provide stable retention of the slopes in accordance with the design. A soil retention blanket(SRB) is used for short and/or long-term protection of seeded and sodded slopes, ditches, and channels. can bemanufactured out of wood, straw or coconut fiber mat, synthetic mat, paper mat, jute mesh or other material. The SRB shall be one of the following classes andtypes: 1. Class 1. Type A. Slopes3(h):1(v) or flatter Clay soils Type B. Slopes3(h):1(v) or flatter Sandy soils Type C. Slopessteeper than 3(h):1(v) Clay soils Type D. Slopessteeper than 3(h):1(v) Sandy soils 2. Class 1. Channel Type E. Shear Stress < 2 lbs./sf Type F. Shear Stress < 4 lbs./sf Type G. Shear Stress <6 lbs./sf Type H. Shear Stress <8 lbs./sf Type I. Shear Stress < 10 lbs./sf Type J. Shear Stress < 12 lbs./sf 3. Mulches 6:1 or flatter slopes Clay or Tight Soils Sandy or Loose Soils Section 4.4.3.2 Velocity Limitation ADOPTED WITH MODIFICATIONS Channel Velocities 1.Lined Channels Maximum velocities =15 fps. (Exceptions can begranted by the Town Engineer, or designee, with justifiable technical reasons) 2. Grass Lined Channels Maximum velocities = 6 fps. Higher values can be justified by a sealed geotechnical study/analysis of soil type and conditions. Section 4.4.4 n Values ADOPTED Section 4.4.5 Uniform Flow Calculations ADOPTED Section 4.4.6 Critical Flow Calculations ADOPTED Section 4.4.7 Vegetative Design ADOPTED CM-31 Section 4.4.8 Stone Riprap Design ADOPTED Section 4.4.8.1 Introduction ADOPTED WITH MODIFICATIONS The # procedure in iSWM for stone riprap design is adopted by Town of Westlake. Please note that Equation 4.4.16 in the iSWM Manual is INCORRECT and should be expressed 22 as T = T*(1- (SinSin A properly designed geotextile is required under the bedding layer. 0 0 Regardless of computed thickness, the minimum allowable riprap thickness is twelve (12) inches. The Town of Westlake may allow grouted stone riprap as an erosion controlfeature. However, the design thickness of the stone lining shall not be reduced by the use of grout. See the U.S.Army Corps of Engineers design manual ETL 1110-2-334 on design and construction of grouted riprap. Section 4.4.8.2 Method # 1: Maynard & Reese FOR GUIDANCE Section 4.4.8.3 Method # 2: Gregory ADOPTED Section 4.4.8.4 Culvert Outfall Protection ADOPTED Section 4.4.9 Gabion Design ADOPTED Section 4.4.10 Uniform Flow - Example Problems ADOPTED Section 4.4.11 GraduallyVaried Flow ADOPTED Section 4.4.12 Rectangular, Triangular and Trapezoidal Open Channel Design ADOPTED Section 4.5 Storage Design ADOPTED WITH MODIFICATIONS Storm water detention is not a mandated requirement in all cases in the Town of Westlake, but shall be provided to mitigate increased peak flows in waterways in specific circumstances. The purpose of the mitigation is to minimize downstream flooding impacts or streambank erosion from upstream development. In some instances, detention may be shown to exacerbate potential flooding conditions downstream. Therefore, the of criteria (Reference Section 2.1.9.2 of iSWM) shall be applied in addition to these criteria. Detention Basins 1. Detention Basins shall be required when downstream facilities within the of are not adequately sized to convey a design storm based on current TOWN criteria for hydraulic capacity. Detention basins may not be required if downstream improvements that shall result in sufficient hydraulic capacity are proposed by the TOWN within a relatively short period of time. CM-32 2. Calculated proposed stormwater discharge from a site shall not exceed the calculateddischarges from existing conditions, unless sufficient downstream capacity above existing dischargeconditions is available. 3. The Modified Rational Method is allowed for planning and conceptual design for watersheds of 200 acres and less. For final design purposes the Modified Rational Method is allowed only for watersheds of 25 acres and less (see Table 2.1.1-2). 4. Detention Basins draining watersheds over 25 acres shall be designed using a detailedunit hydrograph method acceptable to theTown of Westlake. These include Unit Hydrograph (>100 acres) and SCS Dimensionless Unit Hydrograph (any size). The SCS method isalso allowed for basins with watersheds less than 25 acres (see Table 2.1.1-2). 5. Detention Basins shall be designed for the 2-year, 10-year, 25-year and 100-year storm for the critical storm duration (i.e. 3-hour, 6-hour, or 24-hour storm duration) that results in the maximum (or near maximum) peak flow. 6. Detention Basins shall be designed with access for tracked earthwork equipment with a 10-foot crown width on any embankment. 7. Earthen (grassed) embankment slopes shall NOT exceed 4:1. Concrete lined or structural embankment canbe steeper with the acceptance of the Town Engineer, or designee. 8. A calculation summary shall be provided on construction plans. For detailed calculations of unit hydrograph studies, a separate report shallbe provided to the Town Staff for review and referenced on the construction plans. Stage-storage-discharge values shall be tabulated and flow calculations for discharge structures shall be shown on the construction plans. 9. An emergencyspillway shall be provided at the 100-year maximum storage elevation with sufficient capacity to convey the fully urbanized 100-year storm assuming blockage of theclosed conduit portion outlet works with six inches of freeboard. Spillway requirements must also meet all appropriate state and Federal criteria. 10. Design calculations shall be provided for all spillways. 11. All detention basins shall be stabilized against significant erosion and include a maintenance plan. 12. State rules and regulations regarding impoundments shall be observed including 30 TAC Chapter 299, Dams and Reservoirs (TCEQ). 13. In accordance with Texas Water Code §11, all surface impoundments not used for domestic or livestock purposes must obtain a water rights permit from the TCEQ. A completed permit for the proposed use, or written documentation stating that a permit is not required, must be obtained. All detention facility designs shall include a landscaping plan 14. Retention/detention ponds shall resemble natural ponds; in addition: (a) The pond should expand gradually from the inlet towards the outlet, insuring that there are no "dead zones". That is, water entering the pond gradually spreads out and uniformly displaces the water already present in the pond. (b) The length-to-width ratio should be three to one or greater, to provide a long flow path. (c) The average permanent pond depth should be greater than five feet. (d) A ten- to 20-foot-wide shallow bench shall be provided along the shores of the permanent pond for safety and to encourage the development of bottom growth in these areas. This vegetation will enhance the biologic treatment characteristics of the pond and also enhance the "natural" appearance of the pond. (e) Where slope erosion protection is needed for the side slopes of a pond, rock or geotextiles are required as approved by the town manager or his designee. Exposed concrete surfaces shall be faced with embedded rock or masonry. Bare concrete shall only be permitted with the express written permission of the board of aldermen. Side slopes should be no steeper than 4:1 where feasible for reasons of public safety and maintenance. Detention Basins and Amenity Ponds Wet detention basins maintain a permanent pool with additional storage capacity to detain storm water. Amenity ponds may or may not include this additional storage. The depth of a wet or amenity pond is generally seven (7) to ten (10) feet to prevent algalgrowth, although greater depths are possible with artificial mixing.The objective is to avoid thermal stratification that could result in odor problems or CM-33 recycling of nutrients. Gentle artificial mixing may be needed in small ponds because they are effectively shelteredfromthewind.Ifproperlydesigned,constructed,andmaintained,wetpondsshallnotonlyreduce peak storm water flows, but also improve water qualityand can be an attractive feature of adevelopment. Below areguidelines for wet detention basins in addition to those presented under Detention Basins. (a) Must be appropriately aerated according tonormal pool size unless specifically accepted by the Town Engineer, or designee. (b) Provisions shall be made to ensure that normal water surface elevation is maintained through the use of groundwells or the Town water supply unless surface water supply can be justified based on drainage area to pond. (general requirement is 12 acres of drainage area for every acre-foot of normal pool storage). (c) Ten-foot wide maintenance access shall be provided with a slope of 6:1or flatter. (d) A debris filter must be provided for alloutlet structures. (e) Design shall provide adequate capacity for trapped sediment for five (5) years. (f) To minimize short-circuiting, the inlet and outlet should be placed at opposite ends of the pond or baffling shall be installed to direct the water to the opposite end before returning to the outlet. Dead space should beavoided. (g) To limit waterloss by infiltration through the bottom of the pond either an artificial liner or a clay liner may be used. Natural material may be used if a geotechnical report is provided by a licensed professional engineer to assure it shall not leach out the bottom or sides of the pond. (h) Reference iSWM Section5.2.21 Water for additional guidance on the design of Wet Ponds. The water quality and streambank protection criteria described in this iSWM section are not currently required by the City. Section 4.5.1 General Storage Concepts ADOPTED Section 4.5.2 Symbolsand Definitions ADOPTED Section 4.5.3 General StorageDesign Procedures ADOPTED Section 4.5.4 Preliminary Detention Calculations ADOPTED Section 4.6 Outlet Structures ADOPTED Section 4.7 Energy Dissipation Section 4.7.1 Overview ADOPTED WITH MODIFICATIONS Channel Transitions, Energy Dissipation Structures, or Small Dams A backwater analysis is required by the Town of Westlake, using HEC-RAS, to determine accurate tailwater elevation and velocities, headlosses, headwater elevations, velocities and floodplains affected by the proposed transition into and out of 1) An improved channel, 2) Any on-stream energy dissipating structures, and 3) Small dams (less than 6 feet). If the current effective FEMA model for the stream is a HEC-2 model. FEMA no longer recognizes HEC-2 as an acceptable model for current applications. The engineer shall convert the current effective HEC-2 model to HEC-RAS for analysis ofproposed conditions. For larger dams, ahydrologic routing shall be required, as well as hydraulic analysis, to determine impacts of the proposed structure on existing floodplains and adjacent properties. CM-34 Exceptions may be granted for small outfall channels (with the acceptance of the Town Engineer, or designee) withdrainage areas of 10 acres or less and no nearby downstream restrictions. CM-35 Examples of Open Channel Transition Structures Details and Specifications and applicationguidance for Harris County Flood Control District Straight Drop Structure and Bureau of Reclamation Baffled Chute (Basin IX) can be found in Harris County Flood Control District Policy Criteria& Procedure Manual (See references section for description). A computer program associated with FHWA Hydraulic Engineering CircularNo. 14 is dated May 2000. This program provides guidance in the selectionand sizing of a broad range of energy dissipaters including some of those listed in Chapter 4 of the iSWM manual. Section 4.7.2 Symbolsand Definitions ADOPTED Section4.7.3DesignGuidelines ADOPTED Section 4.7.4 Riprap Aprons ADOPTED Section 4.7.5 Riprap Basins ADOPTED Section 4.7.6 Baffled Outlets ADOPTED Section 4.7.7 Grade Control Structures ADOPTED Section 4.8 Easements for Open Channels and Detention Ponds LOCAL CRITERIA SECTION ONLY Drainage Easement Criteria: 1. Drainage easements are required for both on-site and off-site public storm drain channels and ponds. Results of a backwater hydraulic analysis (plus freeboard) shall determine easement requirements. Buffer zones must also be provided for access and to guard against nuisances created from natural erosion processes. Also see Item 6 below. 2. Floodway/Drainage easements shall be provided on-site along FEMA streams with delineated floodways.Floodway easements shall encompass the entire area of the floodway shown on the Effective FEMA Flood InsuranceRate Map. 3. Drainage easements shall include a minimum of ten-foot on both sides beyond actual top of bank for improved earthen channels. Retaining walls are not permitted within or adjacent to a drainage easement in order to reduce the easement width. 4. Natural creeks shall have a dedicated drainage easement encompassing the 100-year fully developed floodplain plus ten (10) feet on each side of this floodplain. The minimum finished floor elevation for lots impacted by natural creeks shall be a minimum of two (2) feet above the fully developed 100 year water surface elevation. 5. Concrete Lined Channels and Gabion Lined Channels shall have drainage easements dedicated to meet the requirements of the width of the channel, the one-foot freeboard above the 100 year fully developed water surface elevation, and any access routes. The minimum finished floor elevation for lots adjacent to Concrete Lined and Gabion Lined Channels shall be a minimum of two (2) feet above the fully developed 100 year water surface. The top of the lining in curves shall provide the two (2) foot of freeboard in the design frequency storm. 6. All detention and retention structures shall be located within drainage easements. Maintenance shall be provided by the developer/land owner. The Town of Westlake provides maintenance only on regional detention facilities. The limit of the easement shall include all freeboard as stated in Section 4.5 plus any access route around the perimeter of the facility. CM-36 7. The entire reach or each section of any drainage facility must be readily accessible to maintenance equipment. Additionaleasement(s) shallbe required attheaccess point(s)and the access points shall be appropriately designed to restrict access by the public. References ADOPTED WITH MODIFICATIONS Harris County Flood Control District, October 2004, Policy, Criteria and Procedure Manual for Approval and Acceptance of Infrastructure, Houston, Texas. U.S.ArmyCorpsofEngineers,August,1992,DesignandConstructionofGroutedRiprap,ETL1110-2- 334. U.S. Army Corps of Engineers, July 1991/June 1994, Hydraulic Design of Flood Control Channels, EM 1110-2-1601. U.S. Department of the Interior Bureau of Reclamation , Hydraulic Design of Stilling Basins and Energy Dissipaters, January 1978, Engineering Monograph No. 25. CM-37 CHAPTER 5 - STORM WATER CONTROLS ADOPTED Chapter 5 of the iSWM Manual contains an exhaustive discussion and detailed examples of structural post-construction controls that can be implemented in land development to meet the goals of protecting water quality, minimizing streambank erosion, and reducing flood volumes. It is an excellent planning anddesign resource document and has valuable design examples that the Town of Westlake encourages local developers to consider in their site planning. Other measures not included in this section maybe considered provided there is appropriate support for their use in the region. CM-38 iSWM APPENDICES Appendix A Rainfall Tables for North Central Texas Adopted Appendix B Hydrologic Soils Data Adopted Appendix C Federal, State and Regional Regulations and Programs Adopted Appendix D Dams and Reservoirs in Texas Adopted Appendix E iSWM Worksheets and Checklists Adopted Appendix F Landscaping and Aesthetics Guidance Adopted Appendix G Storm Water Computer Models Adopted with Modifications In addition to Storm Water Computer Models listed in Appendix G of the iSWM Manual,the Town of Westlake accepts appropriately appliedversions of the following computer models. 1. STORMCAD by Haestad Methods andGeoPac by Bentley for analysis and design of storm sewer. 2. Gabion Design Programs by Maccaferri: a. Macra 1 for Channel Design b. GawacWIN for Retaining Wall Design 3. SWFHYD (formerly NUDALLAS) by Fort Worth District, U.S. Army Corps of Engineers for hydrologic routing studies (use only where model currently exists). 4. AdICPR (Advanced Interconnected Pond Routing) by Streamline Technologies, Inc. for complex hydrograph routing particularly detention ponds in series. 5. InfoWorks by Wallingford for complex dynamic hydrologic and hydraulic modeling. Appendix H Storm Water Control Design Examples Adopted CM-39 Town of Westlake Construction Details Paving Details WPD-01: Concrete Pavement Joint WPD-02: Concrete Pavement Joint Spacing WPD-03: Concrete Curb and Gutter WDP-03A Concrete Rollover Curb and Gutter WPD-04: Reinforced Concrete Pavement WPD-05: Reinforced Concrete Pavement WPD-06: Armoring Joint Detail WPS-01: Reinforced Concrete Sidewalks WPS-02: Reinforced Retaining Wall WPS-03: Pavement Systems General Notes WPS-04: Pavement Subgrade Subdrain WPS-05.1: Metal Beam Guard Fence WPS-05.2: Metal Beam Guard Fence WPS-05.3: Metal Beam Guard Fence WPS-05.4: Metal Beam Guard Fence WPS-05.5: Metal Beam Guard Fence WST-01: Residential Driveway Approach WST-02: Commercial Concrete Driveway Fire Lane Standards FD-01: Fire Lane Design Specifications FD-02: Fire Lane Paving Details FD-03: Fire Lane Turnaround FD-04: Fire Lane FD-05 Fire Lane Striping Sidewalk Details WPS-01: Sidewalk & Ramp Details WPS-02: Sidewalk & Ramp Details WPS-03: Sidewalk & Ramp Details WPS-04: Sidewalk & Ramp Details WPS-05: Sidewalk & Ramp Details WPS-06: Sidewalk & Ramp Details Pavement Marking Details WTM-01: Pavement Marking Details 1 Drainage Details WSD-01: Storm Water Manhole WSD-02: Curb Inlet WSD-03: Curb Inlet WSD-04: Curb Inlet WSD-05: Curb Inlet WSD-06: Curb Inlet WSD-07: Curb Inlet Recessed WSD-08: Curb Inlet Recessed WSD-09: Curb Inlet Recessed WSD-10: Curb Inlet Recessed Notes WSD-11: Drop Inlet WSD-12: Concrete Apron Vertical Headwall WSD-13: Concrete Apron Sloping Headwall WUC-01: Embedment WUC-02: Embedment WUC-03: Embedment WUC-04: Embedment WUC-05: Embedment WUC-06: Pavement Cut Removal and Replacement WUC-07: Infiltration Protection WUC-08: RCP Embedment WUC-09: Structure Embedment Tied Concrete Mat Details WTC-01: Tied Concrete Erosion Control Mat WTC-02: Tied Concrete Erosion Control Mat Letdown WTC-03: Tied Concrete WTC-04: Tied Concrete Erosion Control Mat Roadside Channel WTC-05: New Outlet Detail WTC-06: Existing Outlet Detail WTC-07: Detention Basin Detail WTC-08: Overflow Detail WTC-09: River Bank Detail WTC-10: Bridge Abutment Detail Traffic Signals WTS-01: Typical Traffic Signals WTS-02: Typical Traffic Signals WTS-03: Typical Traffic Signals 2 Wastewater Details WW-01: Wastewater Manhole WW-02: Wastewater Manhole WW-03: Wastewater Manhole Line Intersection WW-04: Wastewater Laterals WW-05: Wastewater Lateral Connections WW-06: Wastewater Laterals WW-07: Wastewater Lateral Stub-Out WW-08: Wastewater Single Stack Cleanout Water Details W-01: Horizontal Thrust Block W-02: Horizontal Thrust Block W-03: Horizontal Thrust Block W-04: Horizontal Thrust Block W-05: Vertical Thrust Block W-06: Thrust Block General Notes W-07: Gate Valve Installation W-08: Gate W-09: Horizontal Gate Valve W-10: Horizontal Gate Valve W-11: Vertical Gate Valve W-12: Vertical Gate Valve W-13: Butterfly Valve W-14: Butterfly Valve W-15: Water Service Connection W-16-A: Large Water Service W-16-B: Large Water Service W-17-A: Large Water Service W-17-B: Large Water Service W-18: W-19: Air R W- W-21: Automatic Flushing Device W-22: Fire Hydrant Installation W-23: Water Main Lowering Ductbank Details WDB-1: Ductbank Details WDB-2: Ductbank Details WDB-3: Ductbank Details 3 Erosion Control Details WEC-01A: Silt Fence WEC-01B: Silt Fence Notes WEC-02: Interceptor Swale WEC-03: Interceptor Swale Notes WEC-04: Diversion Dike WEC-05: Diversion DikeNotes WEC-06: Triangular Sediment Filter Dike WEC-07: Triangular Sediment Filter Dike Notes WEC-08: Rock Check Dam Notes WEC-09: Stabilized Construction Entrance WEC-10: Stabilized Construction Entrance Notes WEC-11: Sand Bag Check Dam WEC-12: Sand Bag Check Dam Notes WEC-13: Pipe Outlet Sediment Basin WEC-14: Pipe Slope Drain WEC-15: Inlet Protection Filter Barrier WEC-16: Inlet Protection WEC-17: Erosion Control Blankets WEC-18: Erosion Control Blankets Notes 4 TOWN COUNCIL AGENDA ITEM Regular Meeting - Action Item Monday, September 26, 2022 TOPIC: Consider a resolution by the Town Council of the Town of Westlake, Texas, approving the Sam School Road open space master plan for the property block 3, lot 17x. STAFF: Troy Meyer, Assistant Town Manager STRATEGIC ALIGNMENT Vision, Value, Mission Perspective Strategic Theme & Results Outcome Objective High Quality Planning, Design & Development - We are a desirable Preservation of our Natural People, Facilities, & Encourage Westlake's well planned, high-quality Beauty Technology Unique Sense of Place community that is distinguished by exemplary design standards. SUMMARY December of 2018 the Town Council approved Resolution 18-50 the Economic Development Agreement with Wilbow-Solana LLC, related to The Knolls at Solana Development in Westlake. Wilbow-Solana, LLC, as the owner of land located within the Town, was to develop 62.531 acres and permitted to sell lots for the construction of up to 56 single family residential homes and construction on such land is expected to significantly enhance the economic base of the Town. As part of the Knolls Economic Development Agreement the developer met the one acre of park land required for every thirty residential lots. This requirement will be satisfied with the final platting of the proposed development through dedication of Lot 17X, Block C, approximately 11.6 acres of land that fronts on Sam School Road that could be used as a trailhead. Lot 17X, Block C will be dedicated as public open space/parkland that will be privately owned and privately maintained through the HOA. The Town shall maintain the improved, developed public parkland on Lot 17X, Block C upon completion of any park improvements to the property. The Knolls developer also deeds to the Town approximately 22.8 acres of land, Lot 16X, Block B, as a preservation buffer from the bordering neighborhoods to the south and west. Page 1 of 3 On October 2021 Town Council passed Resolution 21-36, Development Agreement between LTF Real Estate Company, Inc. (Lifetimes Fitness) and the Town of Westlake. This agreement includes details regarding the planting of trees on Lot 17X, Block C as public open space/parkland (Knolls EDA) that is located south of the subject property as part of the required tree mitigation, and improvements/maintenance to the park property by the developer. In lieu of payment into the Town reforestation fund in the amount of $179,190.00, Lifetime Fitness agreed to plant additional trees in the park that would meet the Town requirements for tree plantings in Town Code of Ordinances. Lifetime Fitness will not be required to spend more than $179,190.00 on the additional trees. Final planting locations, species and sizes of trees would be provided to the Town Manager or designee for final approval prior to installation. Lifetime Fitness will plant additional trees to create a screening buffering between their property and adjacent residential properties. Any remaining unspent funds by Lifetime from the $179,190.00 amount may be applied to other obligations under the agreement or deposited into the Town reforestation fund. Staff worked with Robin McCaffrey and Bennett Partners to create a plan for the open space on Sam School Road south of the Lifetime Fitness property with trees, trail improvements and re-sculpting the hillside to give a more natural feel. Council is not making a decision on the anticipated Phasing and anticipated Costs. The information below is for informational purposes only. Staff would bring forward any related project contract(s) at a later date for Council consideration. The budget for the proposed Phase I, II and III ranges from $240,00.00. to $380,000. Staff hired Kimley Horn architect professional services to develop a phase plan to improve the open space which includes a master plan and budget for each phase of the park improvements. The proposed work below includes Council requested playground and dog park areas in the park open space master plan on Sam School Road. The estimated cost for these two areas is between $285,000 to $314,000. Staff is recommending putting Phase II and III in the unfunded/under discussion Capital Improvement Project Forecast. Phase I -$240,000 includes the following improvements: Earthwork, 20 to 30 trees with tree bubblers, groundcover, wildflower and grass mixes and temporary irrigation. Phase II - $197,000 to $380,000 includes the following improvements: Concrete trails, trail head, outdoor classroom area, bike racks, gateway, stone terrace, timber steps and dry creek bed. Phase III - $285,000 to $314,000 includes the following improvements: Dog park area Playground equipment Staff recommends the Proposed Phase I to include adding trees and ground cover, timber steps, dry creek bed and concrete trails. This project would be estimated at $339,190.00, Funded by Knolls open space $100,000.00 Lifetimes Fitness $179,190.00 Town Reforestation Fund $75,000.00 Total proposed project Budget $354,190.00 Page 2 of 3 COUNCILACTION/OPTIONS 1. I make a motion to approve Resolution 22-62 approving the Sam School Road Open Space Master Plan, as presented. 2. I make a motion to amend Resolution 22-62, with the following amendments.. 3. I make a motion to reject Resolution 22-62. STAFFRECOMMENDATION Staff recommends the approval of the Sam School Road open space master plan for the property block 3, lot 17x. FISCAL/SERVICELEVEL IMPACT TO COMMUNITY Project Cost/Funding Amount: TBD Funding Source:N/A Contract: No Forms: N/A Service Levels:Town will provide ongoing maintenance to the proposed open space improvements. DEVELOPMENT/MOBILITYIMPACT TO COMMUNITY Town of Westlake: Provides an interactive open space for the Westlake Community. Comprehensive Plan: Met town open space vision. Cost Recovery Analysis: N/A Traffic Impact: N/A ATTACHMENTS Resolution Exhibit A Park open space master plan Page 3 of 3 TOWN OF WESTLAKE RESOLUTION 22-62 A RESOLUTION BY THE TOWN COUNCIL OF THE TOWN OF WESTLAKE, TEXAS, APPROVINGTHE SAM SCHOOL ROAD OPEN SPACE MASTER PLAN FOR THE PROPERTY BLOCK 3, LOT 17X. WHEREAS, the on January 13, 2020 the Knolls at Solana additions dedication of 11.619 acres of public parkland open space to the Town Of Westlake located on Sam School, Block 3 Lot 17X; and WHEREAS, the approval of the Park Open Space Master Plan (Exhibit A); and, WHEREAS, the TownCouncil approving Phase Ipublic improvements to Block 3, Lot 17X;and WHEREAS, the Town Council finds that the passage of this Resolution is in the best interest of the citizens of Westlake. NOW, THEREFORE, BE IT RESOLVED BY THE TOWN COUNCIL OF THE TOWN OF WESTLAKE, TEXAS: SECTION 1: That, all matters stated in the Recitals hereinabove are found to be true and correct and are incorporated herein by reference as if copied in their entirety. SECTION 2:That, the Town Council of the Town of Westlake, Texas, hereby approved the Sam School Road open space master plan for the property Block 3, Lot 17x. SECTION 3: If any portion of this Resolution shall, for any reason, be declared invalid by any court of competent jurisdiction, such invalidity shall not affect the remaining provisions hereof and the Council hereby determines that it would have adopted this Resolution without the invalid provision. SECTION 4: That this resolution shall become effective from and after its date of passage. Resolution 22-62 Page 1 of 2 TH PASSED AND APPROVED ON THIS 26DAYOF SEPTEMBER2022. _____________________________ ATTEST: Sean Kilbride, Mayor _____________________________________ _____________________________ Amy Piukana, Town Secretary Jarrod Greenwood, Acting Town Manager APPROVED AS TO FORM: ____________________________ L. Stanton Lowry, Town Attorney Resolution 22-62 Page 2 of 2 Westlake Town Council T YPE OF A CTION Regular Meeting -Action Item 7¤²³« ª¤ 4®¶ #®´¢¨« -¤¤³¨¦ Monday, September 26, 2022 T OPIC:Discussion and consideration to and approving the assignment of the rights, covenants and obligations of the economic development program agreement dated April 22, 2013 and a Development And Subdivision Improvement Agreement Dated October 28, 2013, from Maguire Partners –Solana Land, L.P. to MRW Investors, LLC, and authorizing the Mayor to approve the assignment on behalf of the Town. . S TAFF C ONTACT: Jarrod Greenwood, Acting Town Manager Strategic Alignment Outcome Vision, Value, Mission Perspective Strategic Theme & Results Objective Exemplary Service & Governance - We set the standard by delivering Increase Financial Fiscal Responsibility Fiscal Stewardship unparalleled municipal and Capacity / Reserves educational services at the lowest cost. Time Line - Start Date: September 26, 2022 Completion Date: September 26, 2022 Funding Amount: N/A Status - N/A Source - N/A Contract: No Forms: N/A E XECUTIVE S UMMARY (I NCLUDING A PPLICABLE O RGANIZATIONAL H ISTORY) The Town Council adopted by Resolution 13-17 on April 22, 2014 an Economic Development Agreement for the Entrada Development. The Town Council also adopted by Resolution 13-34 on October 28, 2014 a Development Agreement for the Entrada Development. Both of these agreements are integral to the requirements for the development of the mixed use development, Entrada. Page 1 of 2 At its June 16, 2014 Regular Meeting, the Town Council approved by motion assignment of these two (2) agreements from Maguire Partners-Solana Land, L.P. (the Assignor) to Marquis Westlake Development, Inc. (the Assignee), Resolution 14-22 and Resolution 14-28. The Developer is not seeking permission from the Town Council for assignment in accordance with the Economic Development Agreement (Res 13-17) and the Development Agreement (Res 13-34). RECOMMENDATION Staff recommends approval. A TTACHMENTS Resolution 22-XX with Exhibits Page 2 of 2 TOWN OF WESTLAKE RESOLUTION NO. 22-64 A RESOLUTION OF THE TOWN OF WESTLAKE, TEXAS CONSENTING TO AND APPROVING THE ASSIGNMENT OF THE RIGHTS, COVENANTS AND OBLIGATIONS OF THE ECONOMIC DEVELOPMENT PROGRAM AGREEMENT DATED APRIL 22, 2013 AND A DEVELOPMENT AND SUBDIVISION IMPROVEMENT AGREEMENT DATED OCTOBER 28, 2013 FROM MAGUIRE PARTNERS –SOLANA LAND, L.P. TO MRW INVESTORS, LLC, AND AUTHORIZING THE MAYOR TO APPROVE THE ASSIGNMENT ON BEHALF OF THE TOWN. RECITALS WHEREAS, the Town of Westlake, Texas (the “Town”) and Maguire Partners – Solana Land, L.P., a Texas limited partnership (“Assignor”) entered into an Economic Development Program Agreement dated April 22, 2013 and a Development and Subdivision Improvement Agreementdated October 28, 2013 (collectively the “Development Agreements”) attached hereto as Exhibit A and B; and WHEREAS, Assignor and Marquis Westlake Development, Inc. ("Marquis") are parties to that certain Assignment (the "Marquis Assignment"), dated July 21, 2014, attached hereto as Exhibit C, and consented to by the Town through Town Resolution 14-22 in which Assignor assigned the rights, obligations, and covenants under the Development Agreements to Marquis; and WHEREAS, Assignor and Marquis are parties to that certain Assignment (the "Second Marquis Assignment"), dated August 25, 2014, attached hereto as Exhibit D, and consented to by the Town through Town Resolution 14-28in which Marquis assigned the rights, obligations, and covenants under the Development Agreements to Assignor; and WHEREAS, the Development Agreements contain rights, covenants and obligations which are assignable upon the consent and approval of the assignment by the Town and the Assignor; and WHEREAS, the Assignor desires to assign, transfer, set over, convey and deliver to MRW Investors, LLC (the “Assignee”) all of its rights, covenants, and obligations under the Development Agreements; and WHEREAS, Assignee desires to accept the rights, covenants and obligations of Assignor under the Development Agreements and fulfill the requirements set forth under the Development Agreements; and Resolution _____ Page 1 of 8 WHEREAS, Town Council of the Town (the “Town Council”)finds that the Assignee is financially capable of meeting the terms and conditions of the Development Agreements. WHEREAS, the Town Council finds that the passage of this Resolution is in the best interest of the citizens of Westlake. NOW THEREFORE, BE IT RESOLVED BY THE TOWN COUNCIL OF THE TOWN OF WESTLAKE, TEXAS AS FOLLOWS: SECTION 1: THAT the recitals set forth above in this Resolution are true and correct and are hereby adopted as findings of the Town Council and are incorporated into the body of this Resolution as if fully set forth herein. SECTION 2: THAT the Town Council of the Town (the “Town Council”) does hereby find that the Assignee is financially capable of meeting the terms and conditions of the Assignor in the Development Agreements in satisfaction of the requirements of the Development Agreements. SECTION 3: THAT the Town Council does hereby acknowledge, accept, and approve the assignment of the rights, covenants, and obligations of the Assignor to the Assignee, and shall continue its performance of the Development Agreements with Assignee as though Assignee was the original party to the Development Agreements in accordance with the Assignment document attached as Exhibit E. SECTION 4: If any portion of this Resolution shall, for any reason, be declared invalid by any court of competent jurisdiction, such invalidity shall not affect the remaining provisions hereof and the Council hereby determines that it would have adopted this Resolution without the invalid provision. SECTION 5:THAT this Resolution shall become effective from and after its date of passage in accordance with law. SECTION 6: THAT any signatory hereto may execute and deliver this document by telephone facsimile transmission or email/.pdf, and the same shall constitute an original for all purposes. \[SIGNATURES APPEAR ON FOLLOWING PAGE\] Resolution _____ Page 2 of 8 PASSED AND APPROVED ON THIS THE 26TH DAY OF SEPTEMBER, 2022. ATTEST: _____________________________ Sean Kilbride, Mayor ____________________________ ______________________________ Amy Piukana, TownSecretary Jarrod Greenwood, Acting Town Manager APPROVED AS TO FORM: ____________________________ Stan Lowry, Town Attorney Resolution _____ Page 3 of 8 EXHIBIT A RESOLUTION 13-17 \[SEE ATTACHED\] Resolution _____ Page 4 of 8 EXHIBIT B RESOLUTION 13-34 \[SEE ATTACHED\] Resolution _____ Page 5 of 8 EXHIBIT C MARQUIS ASSIGNMENT \[SEE ATTACHED\] Resolution _____ Page 6 of 8 EXHIBIT D SECOND MARQUIS ASSIGNMENT \[SEE ATTACHED\] Resolution _____ Page 7 of 8 EXHIBIT E ASSIGNMENT \[SEE ATTACHED\] Resolution _____ Page 8 of 8 ASSIGNMENT This ASSIGNMENT (“Assignment”) is executed as of _________ ___, 2022, by and between Maguire Partners-Solana Land, L.P. a Texas limited partnership (“Assignor”), MRW Investors, LLC, a Texas limited liability company (“Assignee”), and consented to by the Town of Westlake, Texas (the “Town”). RECITALS A. Assignor is a party to the Economic Development Program Agreement (the “Economic Development Agreement”) dated April 22, 2013, and attached as Exhibit A, and the Development and Subdivision Improvement Agreement (the “Development Agreement”) dated October 28, 2013, and attached as Exhibit B, (collectively, the “Development Agreements”) both by and between Assignor and the Town. B.The Town is a Type-A general law municipality organized under the laws of the State of Texas. B.The Development Agreements have been entered into in connection with the development of approximately 85.9 acres within the Town; C.Assignor has certain rights, covenants and obligations under the Development Agreements. D. Assignor desires to assign, transfer, set over, convey and deliver to Assignee all of its rights, covenants and obligations under the Development Agreements. E. Assignee desires to accept all of the rights, covenants and obligations of Assignor under the Development Agreements and fulfill the requirements set forth under the Development Agreements. F. Town Council of the Town finds that the Assignee is financially capable of meeting the terms and conditions of the Development Agreements. G. With the assignment of its rights, covenants and obligations of the Development Agreements, Assignor shall forward and notify Assignee of any and all information that Assignor becomes aware of that has not already been provided to Assignee which would affect Assignee’s covenants and obligations under the Development Agreements. NOW, THEREFORE, for and in consideration of the foregoing premises, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged and confessed: 1. Assignment – Rights, Covenants and Obligations. Assignor hereby assigns, transfers and sets over unto Assignee, its successors and assigns all of its rights, covenants and obligations under the Development Agreements. 2. Assignor – Duty to Notify. In consideration for Assignee’s acceptance of the rights, covenants and obligations set forth in the Development Agreements, Assignor shall notify and -1 - forward any information that Assignor receives concerning the Developments Agreement which have not already been provided to Assignee and may have an effect on Assignee’s rights, covenants and obligations under the Development Agreements. 3. Assignee Acknowledgement. Assignee hereby assumes and acknowledges all of the rules, regulations, and requirements as specified in the Development Agreements, accepts and assumes the rights, covenants and obligations of the Development Agreements, and assumes all of Assignor’s covenants and obligations as if Assignee had been an original party to the Development Agreements; provided, however, that Assignee’s assumption extends only to the obligations, covenants, rules, regulations and requirements first accruing from and after (but not prior to) the date hereof. 4. Town Consent and Approval. The Town Council of the Town approves and consents to this Assignmentpursuant to the votes at itsSeptember 26, 2022 Council Meetingand as witnessed by the Mayor’s signature hereinbelow. 5. Representations and Covenants. Assignor hereby represents, warrants and agrees that: (a) Assignor has the right, power and capacity to make this Assignment. (b) Assignor represents and warrants that there are no existing defaults under the Development Agreements and Assignor has not performed any act or executed any instrument which might prevent Assignee from operating under any of the terms and provisions hereof or which would limit Assignee in such operation. 6. Notices. All notices required or permitted to be given hereunder shall be deemed to have been duly given if given in accordance with the applicableprovisions of the Development Agreements. 7. Binding Effect. This Assignment applies to and binds the parties hereto and their respective heirs, legal representatives, successors and assigns. Any provisions in any other agreement creating rights in Assignee other than those created herein shall be deemed incorporated herein by reference and made a part hereof for all purposes. 8. Approval of Town. Assignor and Assignee acknowledge and agree that this Assignment has been approved by action and consent of the Town Council of the Town. 9. Governing Law. This Agreement shall be governed by Texas law. 10. Signatures. Any signatory hereto may execute and deliver this document by telephone facsimile transmission or email/.pdf, and the same shall constitute an original for all purposes. - 2 - IN WITNESS WHEREOF, Assignor has caused this instrument to be executed as of the dates written below. ASSIGNOR: MAGUIRE PARTNERS-SOLANA LAND, L.P. a Texas limited partnership By: MMM Ventures, LLC, a Texas limited liability company Its general partner By: 2M Ventures, LLC, a Delaware limited liability company Its Manager By: Name: Mehrdad Moayedi Its: Manager Date: STATE OF TEXAS ) ) COUNTY OF __________ ) This instrument was acknowledged before me on the __ day of ____________, 2022, by Mehrdad Moayedi in his capacity as manager of 2M Ventures, the Manager of MMM Ventures, the general partner of Maguire Partners-Solana Land, L.P. a Texas limited partnership, known to be the person whose name is subscribed to the foregoing instrument, and that he executed the same on behalf of and as the act of Maguire Partners-Solana Land, L.P. _____________________________________ Notary Public, State of Texas My Commission Expires: ________________________________ - 3 - ASSIGNEE: MRW Investors, LLC, a Texas limited liability company By: LLSF, LLC, a Texas limited liability company Its Manager and Member By: MCGDE EB-5, LP a Texas limited partnership Its Sole Managing Member By: MCGDE EB-5 GP, Inc. a Texas corporation Its General Partner By:___________________ Name: Michael Beaty Its: Its President and Director STATE OF TEXAS § § COUNTY OF DALLAS § This instrument was acknowledged before me on the _____ day of ________________, 2022 by Michael Beaty as President and Director of MCGDE EB-5 GP, Inc., the General Partner of MCGDE EB-5, LP, sole Managing Member of LLSF, LLC, as Manager of MRW Investors, LLC, a Texas limited liability company on behalf of said company. ___________________________________ Notary Public, State of Texas My Commission Expires: ________________________________ - 4- The Town hereby consents to this Assignment pursuant to Resolution No. ____. TOWN OF WESTLAKE: By:____________________________________ Sean Kilbride, Mayor Date: __________________________________ APPROVED AS TO FORM AND LEGALITY: By:____________________________________ Stan Lowry, Town Attorney EXHIBIT “A” Economic Development Agreement - 6 - EXHIBIT “B” Development Agreement - 7 -