An overview of guidance for local Solid Waste Advisory Committees

This is a regularly updated list of tire carrier businesses in Washington.

Use this excel spreadsheet to submit comments on a project for a group of people.

This is a white paper that discusses the use of surrogates in Total Maximum Daily Load (TMDL) water cleanup plans.

Guidance for applying for Ecology Water Quality Stormwater Capacity Grants

Guidance for applying for Ecology Water Quality Stormwater Grants of Regional or Statewide Significance (GROSS) grants

This summary of the December 2018 Ecology Listening Session provides feedback on participant questions regarding Draft Implementation Memo No. 22.

This is a summary of all of the updates to the 2012 model from the WWHM3

Best Management Practices handout for the stormwater management manual meetings.

Meeting agenda to help improve the manuals.

Use this document to organize and submit comments on the 2018 draft Stormwater Manual for Eastern Washington

Comment log for submitting SWMMWW comments

Ecology Water Quality Funded Stormwater Projects Construction Completion Form

Ecology finds the StrataCell and StrataVault systems are functionally equivalent to a bioretention facility when used for treating stormwater.

Design Deliverables guidance for Ecology Water Quality funded Stormwater projects

Design Deliverables Checklist for stormwater projects funded with Ecology water quality funding.

Ecology finds Tigerfloc functionally equivalent to the flocculent chemicals identified in Best Management Practice C250 (Construction Stormwater Chemical Treatment) for stormwater management. Contractors may use Tigerfloc as a replacement for other approved chemicals such as ChitoSan Acetate when operating an enhanced sand filtration system on construction sites.

Ecology Water Quality Funded Stormwater Projects Bid Specification Clauses

Ecology finds Track Clean™ Construction Entrance Plates can be used as a temporary erosion control mechanism. These plates must adhere to the guidelines of Best Management Practice C105 (Stabilized Construction Entrance) for stormwater control.

This spreadsheet shows treatment systems that may be effective in treating specific contaminants. Users should evaluate the effectiveness of any treatment system they plan to implement and confirm that the chosen treatment system does not cause or contribute to a violation of the water quality standards.