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SPIN2022-18 - Stormwater Maintenance
QJ SOUTHLAKE SPIN MEETING REPORT SPIN Item Number: SPIN2022-18 City Case Number: N/A Project Name: Stormwater Maintenance SPIN Neighborhood: City-wide Meeting Date: August 9, 2022 Meeting Location: 1400 Main Street, Southlake, TX City Council Chambers Total Attendance: 8 Hosts: Madeline Oujesky Applicant Presenting: Mandy Clark & Jeff Ginn, Phone: Jeff Ginn (817) 748-8100, Email: jginn(a)-cityofsouthlake.com City Staff Present: Madeline Oujesky, Assistant to the Director Town Hall Forums can be viewed in their entirety by visiting http://www.cityofsouthlake.com and clicking on "I Want to" and "View" "Video on Demand" — forums are listed under SPIN by meeting date. FORUM SUMMARY: Property Situation: City-wide The City of Southlake is proposing an ordinance for post -construction stormwater maintenance. Development Details: Overview • Property owner completes the maintenance agreement template • Runs with the land (successors and assigns) • Includes an Operation and Maintenance Plan o Detention Ponds o Retention Ponds o Earthen Channels o Others may be developed as needed • Reviewed and approved by City Who does it impact? 4 New development, redevelopment, greater than 1 acre • Does not apply to existing sites Owner Responsibilities 4 Maintenance, inspection, documentation City Responsibilities 4 Discretionary inspection, enforcement POST CONSTRUCTION STORMWATER MANAGEMENT ORDINANCE AND MAINTENANCE AGREEMENT August 9, 2022 Mandy Clark, PE, CFM, AICP I Dir. of Water Resources 44 MP OVERVIEW WHY ARE THESE DOCUMENTS REQUIRED? If a stormwater facility is constructed, it needs to be operated and maintained properly. _� W Required by State and Federal Government. • National Pollutant Discharge and Elimination System • E PA • Texas Pollutant Discharge and Elimination System • TCEQ • Stormwater Management Plan • City of Southlake Stormwater Permit: • Managed through development of Stormwater Management Program • Developed by City • Approved by Texas Commission on Environmental Quality (TCEQ) • Five Year Cycle (current 2019 — 2024) • Primary Components are Minimum Control Measures (MCMs) Stormwater Permit: • Managed through development of Stormwater Management Program • Developed by City • Approved by Texas Commission on Environmental Quality (TCEQ) • Five Year Cycle (current 2019 — 2024) • Primary Components are Minimum Control Measures (MCMs) MCM 4: Post -Construction Stormwater Management in New Development and Redevelopment • A program to control stormwater discharges from private and public new development and redevelopment sites that disturb more than 1 acre. • An ordinance to regulate the program • A requirement that owners design, install, implement, and maintain appropriate stormwater measures. • Procedures to ensure long-term maintenance of stormwater facilities • Procedures to document operation and maintenance activities W DEFINITIONS 3 s Inlets M54: ......... p Pipes Municipal Storm Channels Separate Drainage Creeks Storm Sewer System Streets System Ponds Etc. a From Ordinance: Control Measure or Best Manaaement Practice IBMP Schedule of activities, prohibitions or practices, maintenance procedures, structural controls, local ordinances, and other management practices to prevent or reduce the discharge of pollutants. What does this mean: Things to reduce or prevent stormwater pollution and flooding. In Southlake: Generally, stormwater detention/retention. POST -CONSTRUCTION STORMWATER ORDINANCE • Reference to City's Storm Drainage Policy for design guidance • Inspection Requirements o Monthly o Semiannually o Annually • Requirement for a Maintenance Agreement and Operations and Maintenance Plan • Enforcement/Penalties/Suspension of Service Provisions Who does it Owner City impact? Responsibilities Responsibilities 12 IMPACTS AND RESPONSIBILITIES New development Redevelopment Greater than 1 Acre IMPACTS AND RESPONSIBILITIES New � development Redevelopment _ Inspection Greater than 1 Acre IMPACTS AND RESPONSIBILITIES New development Redevelopment Mainte Inspection Greater than 1 Documentation 0 Enforcement Acre STORMWATER FACILITY MAINTENANCE AGREEMENT --------------------------------------------------------------------------------------------------------------------- • Property owner completes the maintenance agreement template • Runs with the land (successors and assigns) • Includes an Operation and Maintenance Plan o Detention Ponds o Retention Ponds o Earthen Channels o Others may be developed as needed • Reviewed and approved by City • Location Map • Plans and Specifications for the Facility • Maintenance Procedures • Maintenance Logs • Annual Report 18 • Mowing • Monthly Trash Removal • Trash Removal after Rain SerniannuaJEJ • Irrigation Check • Silt evaluation • Debris at inlet and outlet • Erosion • Vegetation • Every year prior to April 30 • Owner submits logs and annual report form • Owner certifies that all criteria have been met or how deficiencies will be addressed • 60 days to address deficiencies • City has right, but not obligation, to inspect QUESTIONS . Annual • Structural evaluation • Berm evaluation • Soil Aeration • Evidence of animals/aquatic life Questions and Concerns: Q: This ordinance would not apply to existing stormwater problems? A: Correct, this ordinance creates plans for new development and re -development moving forward. Speaking specifically to detention ponds. Q: Okay so just ponds. What about creeks? A: If it's a graded earth and channel where the developer has come in and braided a channel, then this will apply. If it is a natural creek, this does not apply. Q: Who is the owner that submits and certifies? A: Whoever owns the property. They can delegate that to an operator, but ultimately it is their responsibility. Could be a builder or underlying owner. There could be cases where an HOA owns and manages it. Q: This is a proposal to the city to purchase services? A: No, the city hired us to create this ordinance. It is for any new development that occurs within the city that builds a new detention pond. Kathy Mast email: Can the residents get a copy of the stormwater slides? A: Yes, I believe so Kathy Mast email: Term owner refers to the owner of the new development? A: Yes, the owner of the land/property Kathy Mast email: If new development runoff results in trash downstream, are they required to clean it up? A: Not necessarily, that would be something staff would need to investigate. Might be a code compliance issue. This is mainly for the facility itself. SPIN Meeting Reports are general observations of SPIN Meetings by City staff and SPIN Representatives. The report is neither verbatim nor official meeting minutes; rather it serves to inform elected and appointed officials, City staff, and the public of the issues and questions raised by residents and the general responses made. Responses as summarized in this report should not be taken as guarantees by the applicant. Interested parties are strongly encouraged to follow the case through the Planning and Zoning Commission and final action by City Council. Southlake Connect Results for the August 9, 2022 SPIN Town Hall Forum 9/1622, 3:30 PM Everbridge - Reports Everbridge Suite Dashboard Universe Notifications Contacts Reports Settings Access Reports > Detailed Notification Analysis > SPIN Town Hall Forum -August 9th 8 Detailed Notification Analysis SPIN Town Hall Forum -August 9th DETAILS Call Results ■ 275 (2.74%) Attempted - Notification ID 3096641355650965 Confirmed Notification ® 8080 (80.46%) Attempted Mode Live -Not Confirmed 212 (2.11 %) Attempted - Notification Notification Standard Not Connected Type N 1420 (14.14%) Not Start Date Aug 08, 2022 Attempted Start Time 14-04-19 CDT 055 (0.55%) Other Confirmation Yes Show Details Requested Call Throttling Yes Attempts Over Time Duration 4 hr(s) zsk Message Vo ice/Text Format sk Voicemail Message Only Preference z.sk Delivery Order Organization Default Delivery Methods ok 1. Primary SMS 2. Secondary SMS 3. Primary Email Hide details 4. Primary Mobile 5. Secondary Email 6. Secondary Mobile Attempt Delivery Atte mptAttemptAttem ptAttemptAttem ptAttemptAtte mpt Attempt Attempt Attempt Totals 7. Home Phone Time Method 1 2 3 4 5 6 7 8 9 10 8. Home Phone #2 9. Business Phone 10. TTY / TTD Device Aug 08, Prima ry 2232 0 0 0 0 0 0 0 0 0 2241 14:0 4:09: SMS 28 CDT Secon dairy 55 751 0 0 0 0 0 0 0 0 814 SMS Prima ry 552 1271 0 0 0 0 0 0 0 0 1842 Email Prima ry 45 Mobil e 372 0 0 0 0 0 0 0 0 435 Secon dairy 3 26 0 0 0 0 0 0 0 0 32 Email Totals 2902 2484 1588 859 469 234 63 18 4 1 8622 h ttps://m anager.eve rbridge. net/reports/notification A/iew/3096641355650965 1!7 9/16122, 3:30 PM Everbridge - Reports AttemptDervery AttemptAttemptAttem ptAttemptAttem ptAttemptAtte mpt Attempt Attempt Attempt Totals Time Method 1 2 3 4 5 6 7 8 9 10 Secon dary Mobil e 5 18 0 0 0 0 0 0 0 0 24 Home Phan e 7 36 0 0 0 0 0 0 0 0 47 Home Phan 0 3 0 0 0 0 0 0 0 0 3 e #2 B us in ass Phan e 3 6 0 0 0 0 0 0 0 0 11 TTY/ TTD 0 1 0 0 0 0 0 0 0 0 1 DeviC e Aug 08, 2022 14:09: 2902 2484 0 0 0 0 0 0 0 0 5450 28 CDT Sub Totals Aug 08, prima ry 0 0 0 0 0 0 0 0 0 0 0 14.1 4:14: SMS 28 CDT Secon dary 0 0 0 0 0 0 0 0 0 0 0 SMS Prima ry 0 0 692 0 0 0 0 0 0 0 699 Email Prima ry 0 0 650 447 0 0 0 0 0 0 1122 Mobil e Secon dary 0 0 97 184 0 0 0 0 0 0 289 Email Secon dary 0 0 57 80 0 0 0 0 0 0 148 Mobil e Totals 2902 2484 1588 859 469 234 63 18 4 1 8622 h ttp s://m anager. everbri dge.n et/reports/n otifi cati onlvi ew/3096641355650965 25 9/16122, 3:30 PM Everbridge - Reports AttemptDervery AttemptAttemptAttem ptAttemptAttem ptAttemptAtte mpt Attempt Attempt Attempt Totals Time Method 1 2 3 4 5 6 7 8 9 10 Home Phan 0 0 59 82 0 0 0 0 0 0 149 e Home Phan 0 0 5 3 0 0 0 0 0 0 9 a 02 -------------------------------------------------------------------------------------------------------- B us in ass 0 0 22 41 0 0 0 0 0 0 65 Phan e TTYf TTD 0 0 6 22 0 0 0 0 0 0 29 Devic e Aug 08, 2022 14:14: 0 0 1588 859 0 0 0 0 0 0 2510 28 CDT Sub Totals Aug 08, Prima 2022 ry 0 0 0 0 0 0 0 0 0 0 0 14.19: SMS 28 CDT Secon dary 0 0 0 0 0 0 0 0 0 0 0 SMS Prima ry 0 0 0 0 0 0 0 0 0 0 0 Email Prima ry Mobil 0 0 0 0 0 0 0 0 0 0 0 e Secon dary 0 0 0 0 227 0 0 0 0 0 228 Email Secon dary 0 0 0 0 154 0 0 0 0 0 155 Mobil e Home Phan 0 0 0 0 45 0 0 0 0 0 45 e Totals 2902 2484 1588 859 469 234 63 18 4 1 8622 h ttp s://m anager. everbri dge.n et/reports/n otifi cati onlvi ew/3096641355650965 35 9/16122, 3:30 PM Everbridge - Reports AttemptDervery AttemptAttemptAttem ptAttemptAttem ptAttemptAtte mpt Attempt Attempt Attempt Totals Time Method 1 2 3 4 5 6 7 8 9 10 Home Phon 0 0 0 0 2 0 0 0 0 0 2 e #2 B us in ass 0 0 0 0 22 0 0 0 0 0 22 Phon e TTY/ TTD 0 0 0 0 19 0 0 0 0 0 19 Devic e Aug 08, 2022 14.19: 0 0 0 0 469 0 0 0 0 0 471 28 CDT Sub Totals Aug 08, Prima 14:2 ry 0 0 0 0 0 0 0 0 0 0 0 4.24. 28 SMS CDT Secon dary 0 0 0 0 0 0 0 0 0 0 0 SMS Prima ry 0 0 0 0 0 0 0 0 0 0 0 Email Prima ry Mobil 0 0 0 0 0 0 0 0 0 0 0 a Secon dary 0 0 0 0 0 0 0 0 0 0 0 Email Secon dary Mobil 0 0 0 0 0 175 0 0 0 0 176 e Home Phon 0 0 0 0 0 35 37 0 0 0 73 e Home Phon 0 0 0 0 0 2 4 0 0 0 6 e #2 Totals 2902 2484 1588 859 469 234 63 18 4 1 8622 h ttp s://m anager. everbri dge.n et/reports/n otifi cati onlvi ew/3096641355650965 45 No Text 9/16122, 3:30 PM Everbridge - Reports AttemptDervery AttemptAttemptAttem ptAttemptAttem ptAttemptAtte mot Attempt Attempt Attempt Totals Time Method 1 2 3 4 5 6 7 8 9 10 TTY/ TTD 0 0 0 0 0 0 0 1 2 0 3 Devic e Aug 08, 2022 14:29: 0 0 0 0 0 0 0 18 4 0 22 28 CDT Sub Totals Aug 08, Prima 2022 ry 0 0 0 0 0 0 0 0 0 0 0 14.31: SMS 38 CDT Secon dary 0 0 0 0 0 0 0 0 0 0 0 SMS Prima ry 0 0 0 0 0 0 0 0 0 0 0 Email Prima ry Mobil 0 0 0 0 0 0 0 0 0 0 0 e Secon dary 0 0 0 0 0 0 0 0 0 0 0 Email Secon dary 0 0 0 0 0 0 0 0 0 0 0 Mobil e Home Phon 0 0 0 0 0 0 0 0 0 0 0 a Home Phon 0 0 0 0 0 0 0 0 0 0 0 e #2 B us in ass Phon 0 0 0 0 0 0 0 0 0 0 0 e TTY/ TTD Devic 0 0 0 0 0 0 0 0 0 1 1 a Totals 2902 2484 1588 859 469 234 63 18 4 1 8622 h ttp s://m anager. everbri dge.n et/reports/n otifi cati onlvi ew/3096641355650965 65 9/16122, 3:30 PM Everbridge - Reports AttemptDervery AttemptAttemptAttem ptAttemptAttem ptAttemptAtte mpt Attempt Attempt Attempt Totals Time Method 1 2 3 4 5 6 7 8 9 10 Aug 08, 2022 14-31: 0 0 0 0 0 0 0 0 0 1 1 38 CDT Sub Totals Totals 2902 2484 1588 859 469 234 63 18 4 1 8622 Aeverbrill Rrivary Policy I Terms of Use I © 2022 Everbridge, Inc. 224.0.9-2022-08-19-09:44 FENERSIONO mgr-prtl-prod-us-green-1-0821669cale54f222 h ttp s://m anager. everbri dge.n et/reports/n otifi cati onlvi ew/3096641355650965 75 9/16122, 3:30 PM Everbridge - Reports AttemptDervery AttemptAttemptAttem ptAttemptAttem ptAttemptAtte mpt Attempt Attempt Attempt Totals Time Method 1 2 3 4 5 6 7 8 9 10 Home Phon 0 0 0 0 2 0 0 0 0 0 2 e #2 B us in ass 0 0 0 0 22 0 0 0 0 0 22 Phon e TTY/ TTD 0 0 0 0 19 0 0 0 0 0 19 Devic e Aug 08, 2022 14.19: 0 0 0 0 469 0 0 0 0 0 471 28 CDT Sub Totals Aug 08, Prima 14:2 ry 0 0 0 0 0 0 0 0 0 0 0 4.24. 28 SMS CDT Secon dary 0 0 0 0 0 0 0 0 0 0 0 SMS Prima ry 0 0 0 0 0 0 0 0 0 0 0 Email Prima ry Mobil 0 0 0 0 0 0 0 0 0 0 0 a Secon dary 0 0 0 0 0 0 0 0 0 0 0 Email Secon dary Mobil 0 0 0 0 0 175 0 0 0 0 176 e Home Phon 0 0 0 0 0 35 37 0 0 0 73 e Home Phon 0 0 0 0 0 2 4 0 0 0 6 e #2 Totals 2902 2484 1588 859 469 234 63 18 4 1 8622 h ttp s://m anager. everbri dge.n et/reports/n otifi cati onlvi ew/3096641355650965 45