Sheet Flow Construction Erosion Control

July 18, 2017

How Much Mulch?

How much mulch do you need to prevent erosion and maintain clean water?

Video: David Jenkins

November 26, 2015

Rainy Season Preparation

Dirty Water Flowing in Ditch

Preparing for the Rainy Season
David S. Jenkins
WSDOT Statewide Erosion Control Coordinator
September 1997

Now that the El Nino has ended and the La Nina has begun, the National Weather Service is predicting a much wetter fall and winter than normal. So, what are some things you can do now to prepare? How about: (more…)

August 15, 2012

Geotechnical Exploration Stormwater Pollution Prevention Plan (SWPPP)

Download: Geotechnical Exploration Storm water Pollution Prevention Plan (SWPPP)

This Stormwater Pollution Prevention Plan (SWPPP) template for geotechnical exploration will save time when planning for any type of boring, drilling and potholing operations.

February 25, 2011

Construction Stormwater General Permit

Construction Stormwater General Permit

Construction site operators are required to be covered by a Construction Stormwater General Permit if they are engaged in clearing, grading, and excavating activities that disturb one or more acres and discharge stormwater to surface waters of the state. Smaller sites may also require coverage if they are part of a larger common plan of development that will ultimately disturb one acre or more. Operators of regulated construction sites are required to:

  • Develop stormwater pollution prevention plans.
  • Implement sediment, erosion, and pollution prevention control measures.
  • Obtain coverage under this permit.

NEW! - 01/29/09 Ecology issues the Construction Stormwater General Permit December 1, 2010

WebDMRs and PARIS

Contact Us – Contact your Permit Administrator for permit assistance or your Regional Office for site specific questions.

Permit, Forms and Application – Permit, application, forms, and appeal information.

High Turbidity Reporting – Construction projects must report high stormwater turbidity results within 24 hours.  If you get a high result, call your Ecology regional office.

Resources and Guidance – DMRs, Stormwater monitoring,  manuals, 303(d) list information.

CESCL Training and Certification Programs

Historical Information – Pollution Control Hearing Board information, public comments.

Construction Stormwater General Permit.

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