Resources and Guidance for the Construction Stormwater General Permit

Discharge Monitoring Report (DMR) – Basic Information

  1. A change under the 2010 general permit is that Permittees must submit monthly discharge monitoring reports (DMRs) electronically using Ecology’s secure online system, WQWebDMR unless you have been approved for a waiver.
  2. Permittees are required to submit a DMR each reporting period (each month), even if there is no sampling or no discharge during the reporting period and/or of there is no construction activity.
  3. Permittees must take samples from all discharge points where stormwater (or authorized non-stormwater such as de-watering water) flows offsite. For more information on authorized and prohibited discharges, please refer to Special Condition S1.C and D in the Construction Stormwater General Permit.
  4. Permittees who obtain a waiver to submit “paper” DMRs need to make copies of the blank DMR form they were mailed at the time of permit coverage, and use a copy of that form for reporting. Permittees may request a new blank DMR form; please contact your permit administrator. Mail completed DMRs to:

Washington Department of Ecology
Water Quality Program - Construction Stormwater Unit
PO Box 47696
Olympia, WA 98504-7696

More on the Permit and Reporting Information System (PARIS)

Contaminated Water on Construction Sites

Sampling Frequently Asked Questions

Stormwater Pollution Prevention Plan Template  (To use this template, save to your computer.)

Stormwater Monitoring Guidance Document

Certified Erosion and Sediment Control Lead (CESCL) Training and Certification Programs

Does your site discharge to an impaired water body?

Chitosan Enhanced Sand Filtration Training Programs

Construction Stormwater Site Inspection Form

Erosivity Waiver Calculator

Erosivity Waiver Fact Sheet

Sampling for Construction Stormwater video

Erosivity Map

Stormwater Manuals

These manuals are useful for anyone needing guidance on sediment and erosion control for construction sites. Operators, or engineers, representing industrial facilities will benefit from the technical volumes.

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