Virginia Regulatory Town Hall
Department of Environmental Quality
State Water Control Board

General Notice
Notice of Effective Date - Amendments to the Water Quality Standards Ammonia Criteria 9VAC25-260-155
Date Posted: 10/13/2020
Expiration Date: 11/9/2020
Submitted to Registrar for publication: NO
No comment forum defined for this notice.

Title of Regulation: 9VAC25-260. Water Quality Standards (amending 9VAC25-260-155).

Statutory Authority: § 62.1-44.15 of the Code of Virginia; 33 USC § 1251 et seq. of the federal Clean Water Act; 40 CFR Part 131.

Effective Date: October 13, 2020

On December 13, 2018, the State Water Control Board adopted revisions to the Water Quality Standards in 9VAC25-260-155. These revisions relate to water quality criteria and other policies related to water quality. The amendments were published in final form on June 22, 2020, Volume 36, Issue 22 of the Virginia Register to be effective upon filing notice of U.S. EPA approval with the Registrar of Regulations. The State Water Control Board has received a letter from Catherine A. Libertz, EPA Region III Water Division Director, dated October 6, 2020, approving the amendments. These amendments to 9VAC25-260 et al are effective as regulation.

The effective date of the approved amendments is October 13, 2020. Copies are available online at or by contacting the DEQ staff person below.

Contact Information
Name / Title: David Whitehurst 
Address: 1111 East Main Street, Suite 1400
P.O. Box 1105
Richmond, 23218
Email Address:
Telephone: (804)698-4121    FAX: ()-    TDD: ()-