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HomeMy WebLinkAbout2022-08-11 Stormwater Management Oversight Committee Agenda Packet Stormwater Management Oversight Committee 1 Thursday, August 11, 2022 1 pm to 3 pm Special Meeting Community Meeting Room at City Hall ****BY IN PERSON and VIRTUAL TELECONFERENCE *** https://zoom.us/join Meeting ID: 990 9847 5635 Phone: 1(669)9006833 Pursuant to the provisions of California Governor’s Executive Order N-29-20, issued on March 17, 2020, to prevent the spread of Covid-19, this meeting will be held by virtual teleconference and in person. Agenda posted in accordance Government Code Section 54954.2(a) or 54956. PUBLIC COMMENT Members of the public who wish to participate by computer or phone can find the instructions at the end of this agenda. To ensure participation in a particular item, we suggest calling in or connecting online 15 minutes before the item you wish to speak on. Call to Order (5 min) Oral Communications (5 min) Members of the public may speak to any item NOT on the agenda. A reasonable time restriction may be imposed at the discretion of the Committee Chair. Old Business (5 min) 1. Approval of Action Minutes from the April 7, 2022 Stormwater Management Oversight Committee Meeting (5 min) New Business (95 min) 2. Adoption of a Resolution Authorizing Use of Teleconferencing for Stormwater Management Oversight Committee Meetings During Covid-19 State of Emergency (5 min) 3. Staff Presentation of FY 2023 Approved Budget (10 min) 4. Staff Update Stormwater Management Fund Capital Program (20 min) 2 February 3, 2022 5. Update on the new stormwater permit, Green Streets Stewards, and Rebate Program (60 minutes) Committee Member Comments and Announcements (15 min) Tentative Agenda Items for Future Meetings and Review Action Items (5 min) Adjournment AMERICANS WITH DISABILITY ACT (ADA) Persons with disabilities who require auxiliary aids or services in using City facilities, services or programs or who would like information on the City’s compliance with the Americans with Disabilities Act (ADA) of 1990, may contact (650) 329-2550 (Voice) 24 hours in advance. Public Comment Instructions Members of the Public may provide public comments to teleconference meetings via email, teleconference, or by phone. 1. Written public comments may be submitted by email to the staff liaison, Karin North at karin.north@cityofpaloalto.org. 2. Spoken public comments using a computer will be accepted through the teleconference meeting. To address the Council, click on the link below to access a Zoom-based meeting. Please read the following instructions carefully. A. You may download the Zoom client or connect to the meeting in browser. If using your browser, make sure you are using a current, up-to-date browser: Chrome 30+, Firefox 27+, Microsoft Edge 12+, Safari 7+. Certain functionality may be disabled in older browsers including Internet Explorer. B. You may be asked to enter an email address and name. We request that you identify yourself by name as this will be visible online and will be used to notify you that it is your turn to speak. C. When you wish to speak on an Agenda Item, click on “raise hand.” The Clerk will activate and unmute speakers in turn. Speakers will be notified shortly before they are called to speak. When called, please limit your remarks to the time limit allotted. D. A timer will be shown on the computer to help keep track of your comments. 3. Spoken public comments using a smart phone will be accepted through the teleconference meeting. To address the Council, download the Zoom application onto your phone from the Apple App Store or Google Play Store and enter the Meeting ID below. Please follow the instructions B-E above. 4. Spoken public comments using a phone use the telephone number 3 February 3, 2022 listed below. When you wish to speak on an agenda item hit *9 on your phone so we know that you wish to speak. You will be asked to provide your first and last name before addressing the Council. You will be advised how long you have to speak. When called please limit your remarks to the agenda item and time limit allotted. https://zoom.us/join Meeting ID: 990 9847 5635 Phone: 1(669)9006833 STORMWATER MANAGEMENT OVERSIGHT COMMITTEE MINUTES Page 1 of 2 Special Meeting April 7, 2022 The Stormwater Management Oversight Committee of the City of Palo Alto met in hybrid teleconference at 1:05 P.M. Present: Bower, Keller, Mickelson (Chair), Mossar, Owes, Perman, Wenzlau Absent: Oral Communications Old Business 1. Approval of Minutes from the February 3, 2022 Stormwater Management Oversight Committee Meeting. MOTION: Committee Chair Hal Michelson moved, seconded by Committee Member Dena Mossar to approve the minutes as presented. MOTION PASSED: 7-0 New Business 2. Adoption of a Resolution Authorizing Use of Teleconferencing for Stormwater Management Oversight Committee Meetings During Covid- 19 State of Emergency. MOTION: Committee Chair Hal Michelson moved, seconded by Committee Member Dena Mossar to adopt the resolution. MOTION PASSED: 7-0 SWMOC MINUTES Page 2 of 2 3. Staff Presentation of FY 2023 Proposed Budget for Committee Approval. A. Motion to approve the draft communication to the Finance Committee to be dated April 7 as presented to the Committee. a. Mossar: Motions to approve. i. Wenzlau seconds. ii. No objections. Approved at 1:26 PM. 4. Staff Update Stormwater Management Fund Capital Program. NO ACTION TAKEN 5. Discussion of Boards, Commissions, and Committee (BCC) Workplan Update in Preparation for Next Meeting. A. The Chair will communicate with the City Clerk on the format of the workplan. 6. Discussion of GSI Operations and Maintenance Costs. NO ACTION TAKEN Committee Member Comments and Announcements Tentative Agenda Items for Future Meetings and Review Action Items Adjournment: The meeting was adjourned at 2:44 P.M. AUGUST 11, 2022 www.cityofpaloalto.org Engineering Group Rajeev, Vicki, and Michel 1 OBJECTIVE: Implement projects that will reduce flooding risk •13 PROJECTS / 15 YEARS (2032) •9 PIPE UPGRADES •TWO NEW PUMP STATIONS •REMOVAL OF ONE EXISTING STATION 2017 BALLOT MEASURE CIP PROJECTS CORPORATION WAY AND WEST BAYSHORE ROAD PUMP STATIONS AND SYSTEM UPGRADES PROJECT August 11, 2022 www.cityofpaloalto.org CORPORATION WAY PUMP STATION AND SYSTEM UPGRADES PROJECT PURPOSE & STATUS UPDATE •Install a Pressurized System to Allow Flows to Drain into Adobe Creek and Prevent Flooding on E. Bayshore and Corporation Way. •Process to Acquire Easement from Google Ongoing. Draft Agreement Submitted. PROJECT OBJECTIVES •Upgrade 700 LF of Pipe from 21-inches to 30-inches and Install ne 25 cfs Pump Station. WEST BAYSHORE ROAD PUMP STATION AND SYSTEM UPGRADES PROJECT SCHEDULES •Design Complete 2022/2023 •Construction of Corp Way 2022/2023 •Construction of West Bayshore Road 2023/2024 PROJECT OBJECTIVES & STATUS UPDATE •Increase 400 LF of Pipe from 15-inches to 30-inches and Install 15 cfs Pump Station. •Easement Agreement Finalized with Google. Agreement has been Submitted for Signatures. East Meadow Drive Capacity Upgrades & East Meadow Circle Connect to Adobe Pump Station August 11, 2022 www.cityofpaloalto.org East Meadow Circle and East Meadow Drive PROJECT PURPOSE •Prevent Flooding on East Meadow Circle Due to Back Up Flow from the System that Flows to Barron Creek When Water Surface in the Creek is Very High •Upgrade and Install New Storm System at East Meadow Drive and East Meadow Circle to Accommodate the 10- Year Flow in the Pipe System. East Meadow Circle and East Meadow Drive PROJECT OBJECTIVES •15-inch Pipe Gravity Outfall to Barron Creek Does Not Have Capacity to Discharge Runoff into the Creek When Creek Water Surface is Very High. •Install New 15-inch Pipe on East Meadow Circle to Allow Overflow to Adobe Pump Station on East Meadow Drive. •Upsize 36-inch Pipe on East Meadow Drive to 48-inch Pipe to Increase Capacity to Accommodate Overflow from East Meadow Circle and to Accommodate 10-year low. East Meadow Circle and East Meadow Drive PROJECT SCHEDULES •Potholing for Utility Conflicts Complete September 2022 •Design Complete December 2022 •Installation of pipe March 2023 STORM DRAIN SYSTEM REPLACEMENT AND REHABILITATION PROJECT August 11, 2022 1 Construction Update •Completed all open trench pipe replacement •Added work on Middlefield / Bryson since the pipe could not be lined. Corrugated metal pipe deteriorated away. •Remaining work includes: •Striping •Storm drain grate replacements •CIPP lining •CCTV of newly installed storm drain pipes 2 Construction Update •CIPP Lining •Pipe assessment, cleaning and video of pipes completed April 2022 •Liners ordered by Contractor •Delay in procurement of liner material due to supply chain issues M UNICIPAL R EGIONAL S TORMWATER P ERMIT (MRP 3.0) Pam Boyle Rodriguez August 11, 2022 Overview of Expanded and New Requirements Presentation Outline Background on MRP Significant Changes & New Requirements Modified Provisions New Provisions/Sub-Provisions Regulatory Background Municipal Stormwater Permits Addresses only water discharged from storm drain systems to creeks and SF Bay Federal Clean Water Act (1987) began regulating through National Pollutant Discharge Elimination System (NPDES) permits NPDES permits issued by States/EPA require public agencies to implement measures to control stormwater pollution Santa Clara Valley agencies issued nation’s first NPDES municipal stormwater permit in 1990 by the SF Bay Regional Water Quality Control Board Bay Area MRP Background 4 MRP issued to 79 agencies in the Bay Area, including the City of Palo Alto Third iteration (“MRP 3.0”) became effective on July 1, 2022 MRP is effective for five years SCVURPPP assists County, Valley Water and 13 cities/towns in Santa Clara Valley with countywide programs and compliance MRP Provisions Applicable To Palo Alto 5 C.2 Municipal Operations C.3 New Development and Redevelopment C.4 Industrial/ Commercial Site Controls C.5 Illicit Discharge Controls C.6 Construction Site Controls C.7 Public Information and Outreach C.15 Exempted and Conditionally Exempted Discharges C.17 Unsheltered Homeless Populations Significant changes New provision Minor changes C.9 Pesticides Toxicity Control C.10 Trash Load Reduction C.11/12 PCB and Mercury Controls C.13 Copper Controls C.8 Water Quality Monitoring C.20 Cost Reporting C.21 Asset Management Topic Specific Pollutant Specific Monitoring/Reporting Landscaped areas and pervious surfaces capture runoff, reducing the quantity of pollutants Runoff and pollutants flow directly into local creeks via storm drains Provision C.3 -New and Redevelopment Background Development projects must implement Green Stormwater Infrastructure or GSI (based on project size) Provision C.3 -New and Redevelopment Background Development project size = how much impervious surface is created or replaced on a development site Projects above certain thresholds trigger requirements to treat stormwater runoff using GIS Municipalities also required to retrofit existing public streets and parking lots Pervious Surfaces Bioretention Areas (rain gardens)Rainwater Harvesting Provision C.3 -New and Redevelopment Significant Changes Project size threshold lowered to 5,000 ft2 for most project types: Private/public new development and redevelopment projects New roads or lane additions Some road repair or improvement activities Road reconstruction and pavement widening projects now regulated at threshold of 1 acre of contiguous impervious area Single-family homes now regulated at threshold of 10,000 ft2 of impervious area Provision C.3 -New and Redevelopment Municipal GSI Requirements (retrofit projects) Continue to implement actions in 2019 GSI Plans Identify opportunities to integrate GSI into planned public projects where feasible Construct GSI projects to meet target of 3 acres treated per 50,000 population up to 5 acres (Palo Alto @ 65,364 population = 3.92 ac) Targets can be met at the countywide level If countywide approach chosen, treat minimum of 0.2 acres Provision C.10 -Trash Controls Significant Changes Reduce trash entering storm drain systems New Benchmarks: New 90%trash reduction by June 30, 2023 Extended 100%trash reduction (no adverse impact to waters) by June 30, 2025 Provision C.10 -Trash Controls Significant Changes Increased inspection frequencies for trash capture devices Credits/offsets for source control ordinances eliminated after June 2025 Require private properties with trash issues to implement trash controls Provisions C.11/C.12 -Mercury/PCB Controls Background Legacy pollutants still detected in Bay Area soils and waters Polychlorinated Biphenyls (PCBs) Sources (manufacturing banned in 1979) Electrical equipment (transformers and capacitors) Hydraulic fluids, dust control, flame retardants, lubricants, paints, sealants, wood preservatives, inks/dyes and plasticizers Construction materials (caulking, insulation, roofing and siding materials) Mercury Sources Mining Fossil fuel combustion Concrete production Consumer goods (fluorescent light bulbs, batteries) Continuing Programs Identify/manage properties that may be sources of PCBs/mercury Manage PCBs-containing materials and wastes during building demolition Control PCBs from oil-filled equipment at municipally-owned electrical utilities New Programs Implement runoff treatment measures from Old Industrial Areas (664 acres in Santa Clara County) Control PCBs from materials in bridges and overpasses (when repaired or replaced) Provisions C.11/C.12 -Mercury/PCB Controls Significant Changes Provision C.8 –Water Quality Monitoring Significant Changes Monitor effectiveness of GSI Monitor certain pollutants entering receiving waters Increased requirements for trash monitoring Levels of trash discharged from storm drains during storm events In-stream trash monitoring during storm events Assess trash levels on shorelines and/or streambanks New Provisions C.17 Discharges Associated with Unsheltered Homeless Populations •Identify/implement practices to manage discharges associated with unsheltered homeless populations C.20 Cost Reporting •Develop and submit a regional cost reporting framework •Submit annual analysis of stormwater program costs starting FY 24-25 C.21 Asset Management •Develop/implement Asset Management Plan for stormwater quality assets (e.g., GSI & trash devices) New (Sub)Provisions C.5 Mapping Storm Drain Systems •Identify missing data from MS4 maps and develop a plan to gather data •Gather asset management data (pipe size, material, condition, etc.) C.15 Firefighting Discharges •Convene a regionwide Firefighting Discharges Working Group •Submit a Firefighting Discharges Report describing BMPs/SOPs •Evaluate adequacy of industrial properties to contain firefighting discharges Fiscal Impacts of MRP 3.0 Expanded public resources will be needed to comply Internal funding needs assessment planned Five-year projected budget from SCVURPPP under development Potential funding sources & opportunities to increase efficiencies Funding Analysis recommendations Regional/Program-wide collaboration on tasks/projects State/Federal grant opportunities Q UESTIONS Rebate Program and Outreach Updates Olivia Trevino August 11, 2022 Rain Barrel Survey and Results Goal: Learn how satisfied people were with the Rain Barrel Pilot Program and rebate process Gain valuable feedback for future program improvements Total of 77 submitted responses Opportunity to improve rebate process Majority of individuals heard about the rebate through utility bill inserts and e-newsletter Rebate Program Yard Signs 18” height x 24” width full-color yard sign printed with weather-resistant UV ink on corrugated plastic Rebate Signage Distribution 14 signs distributed to Palo Alto Residents 23 signs distributed to city facilities Webpage provides information on two Palo Alto trash booms New signage for trash booms New signage for 3 major creeks Trash Boom Project Webpage and Signage Social Media Outreach •Posting on Instagram and Twitter on “Sustainable Saturday” to promote Stormwater Rebate Program Future Outreach: Newsletter, Blog, and More! Promote our future workshop with SummerWinds Nursery Promote and educate the community about stormwater rebates Business/Resident factsheets to address new MRP 3.0 requirements and educate about BMPs Future Outreach Event SummerWinds Event Goal:Educate City residents on stormwater capture, pollution prevention, and benefits of rain barrels November/October (date TBD) Work with SummerWinds staff to promote event and install rain barrel Follow up with registrants with installation and rebate information and send out survey to gather feedback Southgate Neighborhood Beautification and Re-greening Project & Green Streets Stewards Program August 11, 2022 www.cityofpaloalto.org/southgat e cityofpaloalto.org/southgate Southgate Project Background •Lack of traditional storm drain system •Neighborhood-wide drainage problems •2014 green stormwater infrastructure (GSI) project •Funded by Storm Drain Fee Bioretention Area Benefits •Captures and filters pollutants •Reduces ponding in streets and sidewalks •Supports wildlife habitat •Beautifies the neighborhood •Improves air quality •Aids with climate change resilience and mitigation cityofpaloalto.org/southgate OCT 2011 DEC 2015 Maintenance Challenges Southgate Replanting Partnership Stormwater Fund: staff support, GrE staff time, materials Valley Water grant: Staff time, Corps work days, volunteer activities Bioretention Restoration Story Southgate Green Streets Stewards Program •Pilot a volunteer maintenance program for bioretention areas •Southgate Neighborhood –ideal location •Grassroots Ecology provides training and oversight •City provides structure and support cityofpaloalto.org/southgate Southgate Green Streets Stewards Program Expectations: 1.Training with Grassroots Ecology and City staff 2.Monthly maintenance of bioretention (minimum) 3.Online reporting of maintenance activities 4.Participate in Grassroots Ecology workdays cityofpaloalto.org/southgate Southgate Green Streets Stewards Program After receiving training, Stewards will: 1.Receive a “maintenance kit” 2.Keep inlets and outlets clear of debris 3.Beautify area by removing trash, debris and weeds 4.Photodocument progress and challenges (e.g., drainage) 5.Report issues such as damage from vehicles or irrigation malfunction cityofpaloalto.org/southgate Map of Southgate Bioretention Areas cityofpaloalto.org/southgate OUTREACH AND EDUCATIONAL MATERIALS cityofpaloalto.org/southgate Project Updates cityofpaloalto.org/southgate •Neighborhood Meeting –March 3, 2022 •Grassroots Ecology workdays •Neighborhood –May 15, 2022 •Renovation of 4 remaining bioretention areas with Corps •July 20 –Rock removal, replacement of electrical box by Utilities Department (Sequoia and Escobita) •August 3 –Removal of non-native plants and rock (Sequoia and Madrono) •Fall w/ neighborhood •Update irrigation •Amend soil with compost •Replant remaining 4 bioretention areas cityofpaloalto.org/southgate •Development of workplan •Grassroots ecology volunteer management •Volunteer training days •Community/volunteer workdays •Bioretention monitoring and maintenance •Revaluation and adjustment of plant palette •Improve aesthetics of areas •Increase community acceptability Next Steps cityofpaloalto.org/southgate •Response to community feedback/concerns •Signage •Aesthetics •Maintenance issues/concerns •Continuing communication •Ongoing community outreach and engagement •Bioretention area management •Meeting various goals -plant choice, spacing and placement •Plant size and establishment period •Monitoring and maintenance considerations Challenges and Lessons Learned