The URL can be used to link to this page

Home My Public Portal AboutStormwater Updates Presentation to Sub-committee 020116Stormwater "Next Steps" Public Works Subcommittee Presentation February 1, 2016 Outline ' Current NPDES Permit ' Proposed NPDES Permit Stormwater Grants Status IV IDDE Update IV 1/1 Update IV Tracking Stormwater Costs 19 Paying for Stormwater L Ah 0 Ah N I'WatertownMassachusetts - DEPARTMENT OF PUBLIC WORKS Town Website NEWS & A1vNQUNCEMENTs Ci i('S TCBlE W Ff ULL i.isr � Trash/Recycling Stormwater Management Mt. Auburn & Common Street Design Illicit Discharge Detection Program DPW Permits 6o4 S Water Grants DEP press release Watertown 6o4B Grant Press Release 2oi.6 Collection Calendar How Do I Questions, address or name change on your water bill CURRENT PROJECTS CLICK TO VIEW HILL UST October 13, 2015 Project Updates Adams Ave. - New Plastic Gas Main $urnham,Man and$ridgham - Next• Gas Main Chandler Sycamore & Dwight Sts Abutters Cross St at Alain St - New Gas Afain Fdenfield Ave - New Gate Vah-e Installation Edenfield Ave and Abutters -Water Main Replacement Final Asphalt Iustallatin - Waltham; Green River Way & Stanley Ave GrenctiDe Rd Gas Main Replacement Honard St. Water Semite Installation 31 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 2D 21 22 23 24 25 26 27 26 29 01 02 W 04 05 06 07 08 09 10 11 12 watertown of Pu�bl►corks We're all abDut NMs i0wn_'" Stormwater "Next Steps" NPDES "Phase II" Permit NPDES Permit Requirements 6 "Minimum Control Measures-" 1. Public Education 2. Public Involvement 3. Illicit Discharge Detection &Elimination (IDDE) 4. Construction Runoff Control 5. Post -construction Stormwater Management 6. Pollution Prevention • 61/119910 VA [Ah : Ah oc. • WATERTOWN RAIN DRAIN PAIN Where does the rain go? i TOWN OF WATERTOWN Storm Drain Outfall Only storm water should flow from this pipe into the river. If you see o • cloudy or discolored water, * oil on the water flowing from the pipe, or • water flowing from the pipe during dry weather ff%r'�rISI�� WIrERT.YM OE PARTWNT of PUBLIC WORKS at 617.972.6420 KeeP-9 th1 Charles R—..clB�l1 i5 B y—,; r '"`''�''�rR/BYI Have you ever wondered where all the water goes when it rains or after the snow melts? Some of it seeps into the ground or evaporates, but most of it runs off over the land and into our catch basins and storm drains. Nearly all Watertown's storm drains empty into. the Charles River. Not to a treatment plant. The runoff water from rain and snow is called `stormwater.' Stormwater can pick up litter, leaves: sand, bacteria, oil and other chemicals as it flows over the land, washing these pollutants into our streams, ponds, river, and wetlands. WHEN IT RAIRS IT DRAINS What you do in your yard or on your property affects the health of our neighborhoods and everyone downstream. We all need clean water for drinking and for protecting wildlife. And we all want clean water for swimming, fishing, and boating. Rip this — Ehe other side shows how to prevent rain drain pain. Stormwater Forum Details Flooding, Pollution 6 Minimum Control Measures 2. Public Involvement ........ MEN-� l � t www.watertownstormwater.org www.greatamericanrainbarrel.com 6 Minimum Control Measures 3. IDDE www.watertowndpw.org 6 Minimum Control Measures 4. Construction Runoff Control C 4 a Stormwater Ordinance l 6 Minimum Control Measures 5. Post -construction Stormwater Management Stormwater Ordinance 10 residential stormwater management systems installed in 2015 NPDES "Phase II" Permit New Permit We are in year 13 o�the 5�ye�a�r permilm. 2010 draft issued for public comment 9 Over 480 pages of comments received It 2014 draft issued for public comment 1,753 pages of comments received 8 pages of comments from Watertown DPW It Final permit anticipated in 301' February 2016 19 Anticipated effective date: July 1 NPDES "Phase II" Permit New Permit ' Submit "Notice of Intent" to EPA within 90 days of effective date of permit ' Complete a "Stormwater Management Plan" within Year 1 and update on a yearly basis 6 minimum control measures are the same... ...with many more requirements! NPDES "Phase II" Permit New Requirements (Examples) IV Distribute more flyers ' Additional public input into Stormwater Management Plan ' Catchment ranking for illicit discharges ' Written inspection procedures It Additional stormwater management requirements for new developments ' Written operation and maintenance plans for municipal activities NPDES "Phase II" Permit New Requirements (Examples) For discharges to a water body with an approved TMDL, comply with Appendix F, Part A of the Permit Phosphorus Control Plan NPDES "Phase II" Permit Phosphorus Control Plan Goal and IMDlementation ' Overall reduction of phosphorus loading to the Charles River by 42% ' Requires Watertown to reduce phosphorus loading to the river by 53% 19 S year planning period (first permit term) IV 20 year implementation schedule, with milestones every five years NPDES "Phase II" Permit Phosphorus Control Plan How to control PhOSDhorus 19 Increase street sweeping using more efficient equipment IV Increase leaf litter pick-up ' More frequent catch basin cleaning ' Require phosphorus controls on new development 10 Install phosphorus controls everywhere ' Filtration and infiltration systems NPDES "Phase II" Permit Phosphorus Control Plan Phosphorus Control Costs I* EPA estimates that on average, it costs $41,000 to remove 1 kg of phosphorus 1 ' Watertown has to remove 613 kg/year of phosphorus EPA didn't say whether this was possible 1 Based on optimization analysis performed in Milford, Bellingham, and Franklin Stormwater "Next Steps" Stormwater Grants Update • 604b Grant • 319 Grant Stormwater Grants Update Green Infrastructure Practices Green Infrastructure Characteristics Mimics natural processes 10 Treats stormwater as close to source as possible 10 Maximizes infiltration to reduce surface runoff ' Often employ soils and vegetation Stormwater Grants Update Green Infrastructur Source: EPA { ti• e Practices .r f LJ- - P-pr�wll. ft� Source: MyRWA Stormwater Grants Update 604b Grant Objectives and Schedule Increase public awareness and interest in the issues related to stormwater ' Showcase how green infrastructure can be a cost effective way to manage and treat stormwater to reduce pollutants 10 Look for concrete opportunities throughout Town to incorporate green infrastructure in future 19 GIS analysis underway; two informational meetings to be scheduled in the spring Stormwater Grants Update 319 Grant Objectives and Schedule Implement a green infrastructure project in conjunction with a road reconstruction project ' Working with Charles River Watershed Association Edenfield Ave. selected ' Preliminary design underway IV Neighborhood meeting to be scheduled for early spring Storarnwater "Next Steps" Illicit Discharge Detection and Elimination (IDDE) Update IDDE Update IDDE Refresher IDDE Update Program Management 10 Public Works Sub -committee meeting on September 28, 2015 ' Working meeting with EPA on October 5, 2015 ' Feedback incorporated into 2015 Q3 annual report ' 2015 Q4 annual report due March 1, 2016 ' Quarterly Reports from 2013 onward are published online ' Update provided to Stormwater Advisory Committee at January 2016 meeting IDDE Update Fourth Quarter Activities IV Repairs and replacements completed Madison Avenue sewer repair Orchard Street Extension sewer and drain replacement Sewer lining in Watertown Square ' Investigations ' Individual building dye testing continued in outfalls 11, 12, 109, and 99 (Watertown Square and Belmont/Waltham connections) ' Manhole inspections and building dye testing began in outfalls 20 and 33 (Sawins Pond and Laundry Brook) Authorization to proceed in outfalls 6 and 8 to begin in 2016 (Acton Street and Howard Street) Sewer and drain television inspection to support investigations ' Incorporated phosphorus sampling at outfalls IDDE Update ., :.a 1 . ' ' # ` fir. R -- IDDE Update Challenges Intermittent nature of mar contributing problems " Complex interconnection c sewer and storm drains • Less information available about drainage systems • Infrastructure as a constan deteriorating asset 10 Series of small defects, no "smoking gun" Stormwater "Next Steps" Inflow/ Infiltration (1/1) Update / I Uiodate 1/1 Refresher www.kingcounty.gov I / I Update I / I Refresher The sewer system rarely flows full When a sewer pipe breaks, it allows groundwater and stormwater to leak into the pipe This takes up extra space that could be used to carry wastewater, contributing to sewer backups and overflows 10 In addition, this additional "clean" groundwater and stormwater is treated at the MWRA Wastewater Treatment Plant, at the Town's expense 9 -'iili r� {iJ ! MWRA 111 LOCAL FINANCIAL ASSISTANCE PROGRAM SEWER AREA MAP ------ - WATf RMW N DYTART NR" UY PC 61 JC wm" W ATY.RTo%N H C""[:%TITS � AIRll.1�t16i RL1'ISffl f'ESRI ARY TRIG Stantec W -� watertown mot Pu�blic�VMS We're all abput this town.' / I Update FY'17 Funding Request ' Infiltration / Inflow Assessment ' Required by DEP (314 CMR 12.04(2)) ' Must be completed by December 31, 2017 ' Requires metering of sewer system during 10 week period (March 1 to June 30) Analyze data to identify problem I/I areas It Sanitary Sewer Evaluation Study Stormwater "Next Steps" Tracking Stormwater Costs Tracking Stormwater Costs Stormwater is a component of many different DPW functions: Street sweeping and catch basin cleaning Leaf litter pick-up Drainage structure repair Roadway reconstruction MS4 Permit administration Development plan reviews and inspections IDDE and I/I programs Maintenance activities Emergency repairs � Tracking Stormwater Costs Stormwater is currently funded through the operating and capital budgets in a variety of ways: IV Tax Revenue ' Bonding ' Grants and low interest loans (1/1 program) IV Road funding Tracking Stormwater Costs • Tracking stormwater costs efficiently requires interdepartmental coordination • Discussions are ongoing to determine best way to proceed Stormwater "Next Steps" Paying for Stormwater Paying for Stormwater Planning for the Future PW is adequately funded to meet stormwater needs toda� New NPDES requirements and the desire to provide additional stormwater benefits will require additional funding Paying for Stormwater Sources of Revenue Used by Other Communities 0 General fund budget, one -time -only requests IV General fund budget, annual line items IV Sewer enterprise fund 10 Proposition 2 %overrides IV Bonding 10 Special sales tax 10 Inspection/permitting fees 10 User fees (stormwater utility)