Water Quality Standards (WQS)
EPA Water Quality Standards web page
Water Quality Standards Fact Sheets
Notice of Availability of Final Aquatic Life Criteria Document for Tributyltin (TBT)
(69 FR 342, 5 Jan 2004)
EPA Notice of Availability of Draft Aquatic Life Criteria Document for Copper and Request for Scientific Review
(68 FR 75552, 31 Dec 2003)
National Recommended Water Quality Criteria for the Protection of Human Health
(68 FR 75507, 31 Dec 2003)
Withdrawal of Federal Aquatic Life Water Quality Criteria for Copper and Nickel Applicable to South San Francisco Bay, California
(68 FR 37925, 25 Jun 2003)
EPA released the draft Ambient Aquatic Life Water Quality Criteria for Tributyltin (TBT)
(67 FR 79090, 27 Dec 2002)
Economic Guidance for Water Quality Standards
(16 Nov 2000)
Water Quality Standards: Establishment of Numeric Criteria for Priority Pollutants for the State of California
(31 May 2000)
State and Tribal Water Quality Standards: Notice of EPA Approvals and Announcement of EPA Internet Repository
(63 FR 53991, 7 Oct 1998)
Water Quality Standards (WQS) Advanced Notice of Proposed Rulemaking (ANPRM)
(63 FR 36742, 7 Jul 1998)
