Spokane Local Source Control (LSC) Program Urban Waters Initiative - - PowerPoint PPT Presentation

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Spokane Local Source Control (LSC) Program Urban Waters Initiative - - PowerPoint PPT Presentation

Oct 21, 2022 446 likes •735 views

Spokane Local Source Control (LSC) Program Urban Waters Initiative (UWI) EnviroStars SRRTTF Meeting June 22, 2016 Protecting the Spokane River & Spokane Valley- Rathdrum Prairie Aquifer 1 Washington State Local Source Control Program

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SRRTTF Meeting June 22, 2016 Protecting the Spokane River & Spokane Valley- Rathdrum Prairie Aquifer

Spokane

Local Source Control (LSC) Program

Urban Waters Initiative (UWI) EnviroStars

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SLIDE 2

Washington State Local Source Control Program

2006 Legislature recognizes distressed urban waters (Commencement Bay, Duwamish River & Spokane River):

  • Urban Waters Initiative
  • Local Source Control Program

75,000 Small businesses in Washington

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Statewide LSC Program Profile

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Statewide LSC Program Profile

2007-09 2009-11 2011-13 2013-15 2015-17 Local Partners 15 14 25 21 23 LSC Specialists 18 24 37 35 35 FTE 15.5 13.2 19.9 22.1 23 Budget

$2.3 million $2.3 million $3.7 million $4.7 million $4.9 million

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LSC Program Focus – Pollution Prevention

LSC Specialists help small businesses understand and implement practices that help them comply with regulations, and protect employee health and the environment.

  • Improve urban water quality – Puget Sound &

Spokane River watershed (supports Clean Water Act)

  • No-charge, voluntary Technical Assistance to

Small Quantity Waste Generator (SQG) businesses (<220 lbs HW/month) – a first for many typically not visited by Ecology

  • Multi-media: Hazardous Waste with spill

prevention, Stormwater, Industrial Wastewater, Solid waste, Air Quality Local solutions to local pollutants through Local Source Control

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What is Source Control?

  • Identifies pollution at the

source

  • Implements Best

Management Practices (BMP’s) –required and recommended

  • Provides access to

dangerous waste handling and disposal expertise

  • Ensures businesses have

permits Summary: Prevents, controls, treats contaminants

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SLIDE 7

How Source Control Works:

How pollution gets into urban waterways

  • Prevents

contamination or re- contamination of urban waters (eg. Duwamish River)

  • Challenge: large

number of pollution sources

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Why Local Source Control in Spokane?

  • Spokane River • Riverfront Park
  • The Spokane River is spectacular, flowing 112 miles from Post Falls, Idaho to Lake Roosevelt (the

upper Columbia River) in Washington. However, it also contains hazardous pollutants.

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Spokane River Pollutants: Contaminants of Concern (COC)

Ecology River Assessment:

  • fish monitoring studies 2005 (regular re-evaluation)
  • river stormwater discharge sampling 2004 & 2007

PCBs (polychlorinated biphenyls) - transformers, pigments

  • River 303(d) listed exceeding WQ criteria for

PCBs & Dioxins

  • Fish consumption advisories

PBDEs (polybrominated diphenyl ethers) - flame retardants in furniture, carpet, electronics, etc.

  • Highest level measured in fish in the state
  • Use now banned by Ecology

Dioxin/Furans – combustion byproducts Metals – lead, cadmium, zinc (toxic to fish)

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Spokane Valley – Rathdrum Prairie Aquifer

Need to protect our sole source drinking water aquifer:

  • >500,000 people
  • 10 trillion gallons water

Susceptible to contamination:

  • Mostly unconfined
  • Highly permeable gravel

deposits

  • Thin topsoil layers
  • Spokane River /Aquifer

interchange

Losing Reach Gaining Reach

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Spokane Partnership 2008 to Current:

Urban Waters Initiative & Local Source Control

Local Source Control Specialist Partnership

TCP Cleanup Contaminated Sites and Sediment TCP Cleanup WQ Prevent Harm From Stormwater Runoff nt Harm From Stormwater Runoff

HWTRH

HWTR Prevent Toxic Contamination event Toxic Contamination HWTR Prevent Toxic Contamination Urban Waters Initiative

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Spokane LSC / UWI Collaboration:

Strategy: 1. Sample street storm water catch basins (water & sediment) 2. Sample sewer systems 3. GIS map systems 4. Trace back to properties 5. Conduct business inspections:

  • Ecology UWI specialists →

MQG & LQG businesses

  • SRHD LSC → SQG businesses

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Goal: 1. Protect River & Aquifer Water Quality 2. Identify sources of contaminants

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Liberty Lake Source Trace Study 2010 (revised 2012)

  • Sampled residential & commercial areas
  • Stormwater and wastewater systems
  • LSC visits to most businesses

Conclusions:

  • All CoC found in all media
  • PCBs found everywhere at low levels
  • PCBs similar in wastewater and stormwater
  • PCBs higher in residential wastewater than mixed

industrial wastewater

  • PCBs higher in older residential wastewater than

new residential

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LSC Multi-sector Business Visits in High Priority Stormwater Basins

2009 - 2016:

Basins with higher levels of storm water contaminants - PCBs, PBDEs, Dioxin/Furans, Metals

  • Union - orange
  • Erie Basin - blue
  • CSO 34 – purple

2013 – 2016: Largest City of Spokane stormwater basin)

  • Cochran – green

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Spokane River Urban Waters Source Tracing Progress Report 2009-2011

Sampled Union Basin & CSO34

  • Stormwater & wastewater

Conclusions:

  • PCB Sources to the Spokane River

are more diffuse than originally suspected

  • Basin field observation, past

activity historical research & homologue pattern work can be useful for PCB source tracing

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LSC Voluntary Technical Assistance Visits

  • Select CESQG businesses to visit (by

geographical area, sector, complaints, SRRTTF objectives)

  • Initial contact visit→ Complete

checklist or make follow-up appointment

  • May consult with Ecology, WWTP &

Stormwater Utilities, SRCAA, Fire Department, etc.

  • Send report → requirements &

recommendations

  • Follow-up visit to evaluate changes
  • Can send referral to Ecology HWTR &

WQ programs

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What is Evaluated?

Wastes generated – Hazardous, Solid, Waste Water:

  • What wastes?
  • Where/how stored? Inside-outside?
  • How disposed (as hazardous waste, solid

waste, down floor drain)?

  • Waste water?

Spill prevention:

  • Written plan?
  • Training?
  • Clean-up materials available?
  • Secondary containment?

Stormwater:

  • Contaminants entering storm drains?

Vehicle washing?

  • Ecology Industrial Stormwater Permit

needed? “Conditional no Exposure Exemption”?

  • Drywells need registering? Maintenance?

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Underground Injection Control (UIC) Well Importance

UIC Drywells:

  • Reduce the depth of soil filtration above the aquifer –

direct path to groundwater

  • Prone to contamination - collect stormwater from large

impervious surfaces

  • Can be improperly used for disposal of wastewater (eg.
  • utdoor washing vehicles)
  • Business misconception that drywells are connected to

sanitary sewer

  • Rarely if ever cleaned out
  • Many are not registered (requirement January 2009)
  • 20,000+ commercial parcels in Spokane County

LSC Drywell Registration Project:

  • Mailer to 1500 property owners encouraging/incentives

to register drywells

  • Website splash page www.Spokanewellwell.org for

registration/information

  • Magnets
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LSC Technical Assistance Results

  • 1000+ site visits
  • High participation rate (95+%)

Hazardous waste handling:

  • Universal wastes (lamps, batteries) recycled – not

disposed in dumpster

  • Discharge of hazardous wastes to WWTP curtailed

(eg. dry cleaning separator water solvent)

  • Floor drain oil-water separator sludge cleaned out

Spill prevention:

  • 160+ Spill kits distributed
  • Spill plans written/posted
  • Secondary containment added
  • Storage sheds installed or wastes moved indoors

Stormwater protection:

  • Outdoor vehicle washing & discharges to

drywells/storm drains curtailed

  • UIC (drywells) registered & cleaned

Before After Before After

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Changes to Business Practices

Before After Before After

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Changes to Business Practices

Before Before After After Before After Before After

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Changes to Business Practices

Before

After

Before Before Before After Before After

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Changes to Business Practices

Before After Before After

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SLIDE 24

Changes to Business Practices

Before

After

Before Before Before After Before After Before After

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LSC Benefits & Incentives for Businesses

Benefits to businesses:

  • Voluntary, non-regulatory visits
  • Provides access to dangerous waste handling and

disposal expertise

  • Reduce liability - protect value of property
  • Comply with laws – drywell (UIC) registration
  • Healthier working environment for staff
  • Reduce waste & conserve resources
  • Recycling resource assistance

Incentives to improve:

  • No-charge spill kits & drain covers
  • Posters, handouts, waste labels
  • Disposal & recycling resources –

SpokaneWasteDirectory.org

  • EnviroStars certification offered

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Spokane EnviroStars Multi-agency Steering Committee www.spokaneenvirostars.org

Business Benefits:

  • Good practices recognized & promoted
  • Improved practices – may reduce costs

LSC Program Benefits:

  • Incentive for businesses to make changes
  • Exceeds minimum Ecology CESQG requirements
  • Set goals for storm water protection (install covered/indoor storage, drywell

cleaning, etc.)

  • Other agency priorities included (Clean Air, Waste Water Pre-treatment, etc.)

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Spokane LSC support of SRRTTF

  • Participate Spokane River Regional

Toxics Task Force (SRRTTF) to reduce PCB’s www.srrttf.org

  • Assist UW Specialists in sampling

(eg. Confidence sampling)

  • Visit SQG businesses in SRRTTF

priority areas

  • Maintain Spokane River Fish

Advisory

  • Promote Low Impact Development
  • Educate property owners to

register & maintain drywells

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SLIDE 28

Contact Information

Sandy Phillips

Local Source Control Specialist Spokane Regional Health District Email: sphillips@srhd.org Phone: (509) 324-1572 www.srhd.org

www.spokaneenvirostars.org www.envirostars.org

LSC PROGRAM FOCUS SHEET: https://fortress.wa.gov/ecy/publications/SummaryPages/1304002.html LSC PROGRAM WEB PAGE:

http://www.ecy.wa.gov/programs/hwtr/lsp/index.html 28