Nevada State Environmental Commission Archives and Regulatory Access System

Petition No. 98005

LCB File No. R062-98

Date Received by Commission: 04/08/1998

Summary: Water Quality Standards for the Las Vegas Bay

Current Status: Codification completed 1/16/99 by LCB

Nevada Administrative Code: 445A.070 to 445A.348

Permanent Adoption/Hearing: 06/17/1998

Temporary Adoption: N/A

Effective/Filed: 08/04/1998

Codified by LCB: 01/16/1999

Petitioner: NDEP / Bureau of Water Quality Planning

Description of Petition:

Petition 98005 (LCB R062-98) permanently amends NAC 445A.194 to NAC 445A.201 to revise the water quality standards for the Las Vegas Wash, Las Vegas Bay and Lake Mead. The revisions add explanations of requirements to maintain existing higher quality (RMHQ) and removes all references to "90% of the samples" and replaces the language with "95% of the samples" for RMHQs. The pH standard for Lake Mead water quality standards in NAC 445A.194 and 445A.915 were revised and a standard for escherichia coli was added. NAC 445A.196 and 445A.197, the standards for the Las Vegas Bay, were amended to add RMHQs for chlorophyll a at stations LM4 and LM5 and revised the standard for pH and nitrite. NAC 445A.198 through NAC 445A.201 were amended to add a standard for total suspended solids, revised the standard for pH in the lower reach and revised the RMHQ for total dissolved solids.

Annotated History of the Petition:

Petition 98005 submitted by BWQP to SEC on 4/8/98; transmitted by SEC to LCB for drafting on 4/10/98; before SEC on 6/17/98 for adoption, adopted with amendments on 6/17/98 by SEC, filed with Secretary of State on 8/4/98; correction letter sent to LCB 8/7/98; corrected filing done by LCB on 1/6/1999; codification completed on 1/16/1999.