Thursday, May 31, 2012

Reissue of Washington MS4 Stormwater Permits

In June 2012, the Washington State Department of Ecology (Ecology) is preparing to reissue three general National Pollutant Discharge Elimination System (NPDES) municipal (also known as MS4) stormwater permits:
  • Phase I Municipal Stormwater General Permit (Phase I permit).
  • Phase II Western Washington Municipal Stormwater General Permit (Phase II WWA permit)
  • Phase II Eastern Washington Municipal Stormwater General Permit (Phase II EWA permit).

For the past three years, Washington State Department of Ecology (Ecology) has been working with interested parties and advisory groups in Western Washington to develop permit requirements. Ecology developed and managed advisory groups for input on monitoring and low impact development requirements. During 2011, Ecology held meetings with permittees and interested parties in Eastern Washington to discuss changes to the Eastern Washington permit requirements.

Caltha LLP provides expert consulting services to public and private sector clients nationwide to address Stormwater Permitting & Regulatory Support, Stormwater Pollution Prevention Plans (SWPPP), Stormwater Monitoring and Stormwater Training.
For further information contact Caltha LLP at or Caltha LLP Website

No comments: