Proposed Policy for Toxicity Assessment and Control

The draft “Policy for Toxicity Assessment and Control” proposes numeric toxicity objectives, a standardized method of data analysis, corresponding monitoring and reporting requirements, and provisions for compliance determination. If adopted, the draft Policy will supersede Section 4 of the State Implementation Policy (SIP).

• External Peer Review for the Draft Policy for toxicity Assessment and Control
  • Dr. Gerald A. LeBlanc Review
  • Dr. Michael C. Newman Review
• External Peer Review Documents for the Draft Policy for Toxicity Assessment and Control
• External Peer Review Documents for the Test of Significant Toxicity (TST)
  The following journal articles are referenced in the TST peer review synopsis.
  • Response to TST Peer Review
  • Tests for Bioequivalence of Control Media and Test Media in Studies of Toxicity
  • Test of Significant Toxicity: a statistical application for assessing whether an effluent or site water is truly toxic
  • It is Time for Changes in the Analysis of Whole Effluent Toxicity Data
• Final Whole Effluent Toxicity Test Drive Analysis of the TST - updated December 2011
• Toxicity Assessment and Control in California’s Surface Waters (Fact Sheet) - issued August 2011
• TST Spreadsheet Tool - BETA VERSION 1.5 (updated 5/16/12)
  This spreadsheet tool is being provided to assist interested stakeholders in evaluating their current data using the TST. The user should note that this spreadsheet tool is a developmental beta release. It is subject to change without notice and should not be used for official data interpretation. Please email suggested improvements or corrections to Debra Denton at Denton.Debra@epamail.epa.gov
• Notice - Draft Policy for Toxicity Assessment and Control Workshop - August 22, 2011 (posted 7/28/11)
• Staff Workshop Documents:
  • Staff Workshop Presentations:
    • Policy Presentation (Staff)
    • Test Drive Analysis Presentation (Tetra Tech Inc.)
  • Prevailing Comments on the Draft Policy for Toxicity Assessment and Control
  • Alternatives to Select Provisions of the Draft Policy for Toxicity Assessment and Control
  • Whole Effluent Toxicity Test Drive Analysis of the TST - issued July 2011
• Revised Public Notice and Public Comment Period: Draft Policy for Toxicity Assessment and Control
• Public Notice and Public Comment Period: Draft Policy for Toxicity Assessment and Control
  • Comments Received (1/21/11)
  • Draft Policy for Toxicity Assessment and Control
  • Staff Report for Draft Policy for Toxicity Assessment and Control
  • Notice of Public Scoping Meeting
  • Public Scoping Meeting Information Packet
    
    
• Get updates by email regarding the draft Policy for Toxicity Assessment and Control, subscribe online to the “State Implementation Policy (SIP)” mailing list.

(Updated 5/17/12 )