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Request to Proceed for Approval of the 2010 Catawba River Basin Plan

Request to Proceed for Approval of the 2010 Catawba River Basin Plan. Presented by Melanie Williams. 2010 Catawba River Basin Plan. Plan Schedule Water Quality Status Trends Chain of Lakes Basinwide Issues Recommendations & goals Public Review Comments. Catawba Plan Schedule.

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Request to Proceed for Approval of the 2010 Catawba River Basin Plan

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  1. Request to Proceed for Approval of the 2010 Catawba River Basin Plan Presented by Melanie Williams

  2. 2010 Catawba River Basin Plan • Plan Schedule • Water Quality Status • Trends • Chain of Lakes • Basinwide Issues • Recommendations & goals • Public Review Comments

  3. Catawba Plan Schedule • Internal Review: April 15 – May 7, 2010 • Public Review: May 18 – June 18, 2010 • WQC: July 14, 2010 • EMC: September 2010

  4. Impaired Waters • Between 2004 Plan and 2010 Plan: • Removed from Impaired Waters List: • 23.6 miles • 4,895.1 acres • Added to Impaired Waters List: • 226 miles • 1,937 acres 2010 Impaired Waters in Red

  5. Biological Rating Trends # of Stations # of Stations 2004 – Green / 2010 – Yellow

  6. Ambient Monitoring System Stations • 32 Stations Basinwide • Each monitored monthly

  7. Copper • 47 miles of new impairments • Methodology change • General downward trend Yearly average values of 32 ambient monitoring stations. Red Lines: Impaired waters for Copper

  8. % Exceedances Between 2004-2008 Turbidity Red Lines: Impaired waters for Turbidity Standard: 50 NTU

  9. % Elevated Between 2004-2008 Fecal ColiformBacteria (FCB) Red Lines: Impaired waters for FCB By Geometric Mean No Elevated Levels

  10. % of Low pH Exceedances Between 2004-2008 pH Red Lines: Impaired waters for Low pH High pH Standard = 9.0 su Low pH Standard = 6.0 su By Mean pH (S.U.)

  11. Catawba Chain of Lakes

  12. Catawba Chain of Lakes • Impaired Lakes: • Rhodhiss, Mountain Island, Portions of Wylie • Recommendations for Chain: • Increase main stem buffer awareness through educational efforts • Collect additional samples within the lakes for a total of 10 samples in each lake • Implement Action Plans

  13. Lake Rhodhiss • Impaired – High pH (since 2004) • 21% Nitrogen & 48% Phosphorus from point source • Based on modeling from 2000 • Optimization Study for three WWTP facilities completed in Jan. 2009 • Marion, Morganton & Valdese • Western Piedmont Council of Government Watershed Management Plan - (2009) • Nonpoint source: nutrient/sediment reductions

  14. Lake Rhodhiss Action Plan • Point Sources: • 3 WWTPs complete pilot study to reduce phosphorus • New permit requirements include… • Effluent monitoring weekly for nutrients • Instream monitoring monthly for nutrients • Nonpoint Sources: • Implement Watershed Management Plan • Evaluate 2012 monitoring results to determine if TMDL is necessary.

  15. Mountain Island Lake • Impaired – Low pH • Recommendation: • Special Study in planning stage • DWQ working with Charlotte-Mecklenburg & Duke Energy

  16. Lake Wylie • Upper dam to I-85: • Impaired - Low pH • South Fork Stem: • Impaired - Copper • 1996: Nitrogen/Phosphorus TMDL developed to address high chlorophyll a

  17. Lake Wylie 2010 Recommendations • Mount Holly & Belmont permit limits • Develop Action Plan to better support the TMDL • Monitoring Plan • Review management area • Review source allocation • Review nutrient monitoring requirements • Majors – Effluent weekly • Minors – Effluent at least monthly

  18. Other Basinwide Issues • Stormwater Velocity & Volume • On-Site Wastewater Treatment • Buffers on Main Stem • Coal Ash Ponds

  19. Water Quality Improvements & Restoration Work • 1,311 acres preserved and protected through the Conservation Easement Fund • 40 Ecosystem Enhancement Program (EEP) Projects • Active Soil and Water Conservation Districts • Irish Creek removed from Impaired Waters List • Local Initiatives

  20. Recommendations & Goals for Upcoming Cycle • Action Plans • Coordinate efforts to plan and implement local watershed management plans • Participate in analysis of Low pH • Assist with fecal coliform bacteria reduction efforts • Support buffer awareness and outreach efforts • Conduct/support watershed stressor studies

  21. Public Review • Received Comments from: • Duke Energy • Charlotte-Mecklenburg Stormwater Services • Town of Valdese • The City of Hickory • Gaston County Cooperative Extension • The Farm Bureau • Catawba RiverKeeper

  22. Public Review Comments • Comment Topics: • Low pH • Requests for additional lake sampling • Sources of Copper • Taste & Odor issue in Lakes Rhodhiss and Hickory • Agricultural Impacts, Farm Bill efforts • Need for a nutrient strategy for the whole chain of lakes • Full study of coal ash pond impacts • Stronger recommendations to reduce nutrients in lakes • Evaluate stormwater impacts on lakes

  23. Request to Proceed to EMC for Approval of the Final Catawba River Basinwide Water Quality Plan • Picture will go here

  24. Questions??

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