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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 November 2015 with an effective date of January 1, 2016.

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, Fact Sheet, and Small Business Economic Impact Analysis  Available for Public Comment

September 9, 2015

Ecology will post the formal draft of the Sand & Gravel General Permit for public comment.

Public Workshops and  Hearings

October 5 & 8, 2015

Locations of  workshops, and hearings, on the formal draft permit to be determined.

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.

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

Permit - The permit and a list of activities that require a permit. 

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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