Water Quality Water Quality Standards Public Standards Public

MeetingMeeting

April 30, 2008April 30, 2008

2008 Legislative session2008 Legislative session

• 47CSR2 WQS Triennial review passed 47CSR2 WQS Triennial review passed March 6, 2008March 6, 2008

• Governor signed on March 28, 2008Governor signed on March 28, 2008

• Rule filed with Secretary of State on April Rule filed with Secretary of State on April 11, 2008, effective date July 1, 200811, 2008, effective date July 1, 2008

• Rationale document will be sent to EPA Rationale document will be sent to EPA for approval in July 2008for approval in July 2008

Changes during Legislative Changes during Legislative sessionsession

• The proposed additions to the trout The proposed additions to the trout water list were removedwater list were removed

• Removal of Tier 2.5 and change in Removal of Tier 2.5 and change in the definition of Tier 3 watersthe definition of Tier 3 waters

High points of triennial High points of triennial reviewreview

• Nutrients criteria, including Nutrients criteria, including phosphorous and chlorophyll-a, for both phosphorous and chlorophyll-a, for both warm and cool water lakeswarm and cool water lakes

• Dissolved aluminum warmwater chronic Dissolved aluminum warmwater chronic value of 750 value of 750 g/l was passed, replacing g/l was passed, replacing the emergency rule which expires the emergency rule which expires September 14, 2008September 14, 2008

• Criteria for four parameters in Appendix Criteria for four parameters in Appendix E were updated based on EPA E were updated based on EPA recommendationrecommendation

• 16 parameters added to Appendix E 16 parameters added to Appendix E with WQS limits based on EPA’s with WQS limits based on EPA’s Current National Recommended Water Current National Recommended Water Quality CriteriaQuality Criteria

• Formulas in Appendix E used to Formulas in Appendix E used to calculate aquatic life limits for metals, calculate aquatic life limits for metals, were updated to reflect current EPA were updated to reflect current EPA recommendations recommendations

• Use Removal of Category A and D1 Use Removal of Category A and D1 designations on Pats Branch designations on Pats Branch

Timelines for 2009 Proposed Timelines for 2009 Proposed RulesRules

• June 10, 2008 – Proposed rules delivered to June 10, 2008 – Proposed rules delivered to Advisory Council membersAdvisory Council members

• June 24, 2008 – Advisory Council meets at June 24, 2008 – Advisory Council meets at 1:30 pm1:30 pm

• July 1, 2008 – File notice of public hearing July 1, 2008 – File notice of public hearing and public comment period with Secretary and public comment period with Secretary of Stateof State

• August 18-25, 2008 – public hearingAugust 18-25, 2008 – public hearing

• August 29, 2008 – Last day to file Agency August 29, 2008 – Last day to file Agency approved rule with Secretary of Stateapproved rule with Secretary of State

Proposed rule revision for Proposed rule revision for 20092009

• Category A revisionCategory A revision