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Sand and Gravel General Permit

The Sand and Gravel General Permit regulates discharges of process water, stormwater, and water from mine dewatering into waters of the state associated with sand and gravel operations, rock quarries, and similar mining operations. The permit also covers concrete batch operations and hot mix asphalt operations. Untreated discharge water from sand and gravel operations may harm fish, aquatic life, and water quality. Ecology modified the permit on August 17, 2011. 

Permit Reissuance

The current Sand & Gravel General Permit will expire October 1, 2015. Ecology plans to revise and reissue the new permit in December 2015 with an effective date of January 1, 2016.

NEW, updated 9/08/2015 Formal Draft Sand & Gravel General Permit

Ecology invites public comments on the Formal Draft of the Sand & Gravel General Permit beginning on September 9, 2015. Please submit comments on the Formal Draft by 11:59 p.m. October 23, 2015. Ecology will read and consider the comments when reissuing the final permit. Ecology will respond to comments submitted by the deadline and will post them online.

Send written comments to Ecology by e-mail to: or by mail to:

Carrie Graul – Sand and Gravel General Permit Comments
Department of Ecology
Water Quality Program
P.O. Box 47696
Olympia, WA 98504-7696

Please consider including the following information with your comment:

  • The permit reference and/or page number in the formal draft language.
  • A brief, concise comment including the basis for the comment.
  • Suggested permit language or a conceptual alternative, where appropriate, to address your concern.

Ecology has been working on reissuing the Sand & Gravel General Permit for some time. The Historical Permit Information page provides information about past permit reissuance events, documents, and presentations.

Ecology will update the estimated current and future reissuance schedule below as necessary:


Date / Time


Formal Draft Permit  Available for Public Comment

September 9, 2015

Public comment period begins.

Public Workshops and  Hearings

October 5 & 8, 2015

October 5 – 9 a.m.
Washington State Department of Ecology
Lacey, WA 98503-1274
or attend via webinar: sign up here

October 8  – 1 p.m.
Washington State Department of Ecology
Eastern Regional Office
4601 N Monroe
Spokane, WA 99205-1295

Current Permit Expires

October 1, 2015

The expired permit continues in force and effect until a new permit is effective. Only those facilities which have reapplied for coverage under the current permit are covered under the continued permit.

Formal Draft Public Comment Period Ends October 23, 2015 Public comment period closes at midnight.

Issue Final Permit and Response to Comments on the Formal Draft Permit

December 2, 2015

Copies mailed to all permit holders.

Final Permit Effective

January 1, 2016

The new permit becomes effective.

Current Permit Information

Forms & Application - Instructions for reapplying or apply for the permit, forms, and public notice requirements. All current permittees must have reapplied for the Sand & Gravel General Permit by April 4, 2015 (180 days before the expiration of the current permit). If you missed the deadline, you should still reapply.

Permit Limits and Monitoring

Employee Training

Erosion and Sediment Control Plan (ESCP) - The permit requires the permittee to develop, maintain, and comply with their ESCP.

Monitoring Plan - Assistance for mapping your site, identifying monitoring points, sampling, discharges to ground water, lab analysis, DMRs, and plan review.

Stormwater Pollution Prevention Plan - Permit requirements for the SWPPP.

Spill Plan - General guidance on plan requirements and basic BMPs.

Portable Facilities - Information about portable coverage including; when coverage is required, site restoration, notice to begin operation, and permit fees.

Reapply or Apply Online

Get Sand & Gravel
E-mail Updates

Public Notice Requirements

Estimating Discharge and Streamflows: A Guide for Sand and Gravel Operators

Antidegradation Plan

Electronic Reporting/

Office for Regulatory Innovation and Assistance

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