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Published byKatrina Wells Modified over 9 years ago
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Staci Goodwin Senior TMDL Project Manager Office of Water Quality
TMDL 101 – Everything You Ever Wanted to Know About Total Maximum Daily Loads Staci Goodwin Senior TMDL Project Manager Office of Water Quality
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Presentation Overview
The Total Maximum Daily Load Program (TMDL) The TMDL Process
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The Total Maximum Daily Load Program
What is it and what does it do?
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What is a Total Maximum Daily Load?
The amount of a pollutant that a waterbody can receive and still meet water quality standards A report of pollutant sources and needed reductions A tool to guide watershed planning
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What is a Watershed?
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TMDL Components TMDL = ∑WLA + ∑LA + MOS
The sum of allowable loads from point sources (WLA) and nonpoint sources (LA) plus a margin of safety (MOS) TMDL = ∑WLA + ∑LA + MOS
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Why do TMDLs? Required by the Clean Water Act
Provide overview of watershed condition Guide local actions to correct problems
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What Will a TMDL Provide?
A tool for watershed management One-stop-shop for all watershed data Load reductions needed to meet water quality standards Based on Rule and 303(d) listing methodology.
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An overview of how TMDLs are created
The TMDL Process An overview of how TMDLs are created
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What are Impaired Waters?
Waterbodies sampled for water quality Waterbodies where a “use” is adversely affected Waterbodies assessed by IDEM
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Water Quality Reports 305(b) – assess water quality and report to U.S. EPA, Congress 303(d) – compile list of impaired waters Product – Indiana Integrated Water Monitoring and Assessment Report 303(d) List is only component of IR that must be approved by EPA; 305(b) component of IR is reviewed but not subject to EPA approval
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Indiana’s Water Quality
Problems – E. coli, Impaired Biotic Communities, and Fish Consumption Advisories Extent – 35,673 miles of streams 63% support aquatic life 46% support full body contact Statewide fish consumption issues
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What is the TMDL Process?
Gather data Reassess waterbodies Hold a kickoff stakeholder meeting Produce draft TMDL report Hold a draft stakeholder meeting 30-day comment period Final TMDL U.S. EPA approval
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Internal Data Gathering
Confined Feeding Operations Concentrated Animal Feeding Operations NPDES permits NPDES violations Enforcement cases ArcGIS map of area 303(d) listing information Assessment database Landuse GAP The TMDL program works with all of these program areas within IDEM (not just OWQ) to be sure that we have complete and accurate information.
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External Data Gathering
Stakeholders Soil and Water Conservation Districts Health Departments Federal Government Agencies Watershed groups Purdue Extension offices Universities The TMDL group contacts these groups and more in each TMDL watershed area. Additionally, at our Kickoff Stakeholder meeting, we solicit for data and other entities that we should contact. We encourage those present to contact us or to exchange contact information so that we can contact interested parties.
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Reassessing a Waterbody
Evaluate listing inconsistencies Determine what is and is not impaired Incorporate new data into the TMDL process Due to the segmentation of the reach index. Segments above and below may be impaired for a parameter, while the middle segment is not.
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Stakeholder Meetings Explain the process Ask for information
Present information Build local partnerships
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The TMDL Report Overview of watershed condition
Identification of sources Discussion of analytical process Load reductions Current water quality efforts Recommended actions
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TMDL Facts Stakeholder driven process Based on specific watershed data
Non-regulatory program Can impact permits “Living Document”
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Putting It All Together
Locally Led Work to Improve Water Quality Nonpoint Source Grants Program Total Maximum Daily Loads (TMDL) Watershed Specialists 303(d) List and 305(b) Report 303d/305b directs watershed planning TMDLs provide information on impairments Watershed plans guide local efforts Grants fund planning and implementation of methods to control nonpoint pollution Watershed specialists provide vital assistance to local groups
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The Result?
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Questions? Staci Goodwin Senior TMDL Project Manager
Watershed Restoration and Planning Section Office of Water Quality Indiana Department of Environmental Management 100 North Senate Avenue Indianapolis, Indiana PH: (317) FX: (317)
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White River Headwaters TMDL Kickoff Meeting Technical Presentation
Stakeholder Meeting May 26, 2011
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Presentation Overview
Why are we here? What do we already know? What happens next?
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An overview of the water quality issue,
WHY ARE WE HERE? An overview of the water quality issue, the location of the TMDL, and information collected by IDEM to help start the process
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Framing the TMDL project
Issues Elevated levels of E. coli bacteria in the watershed Why do we care? Waterbodies listed on the 303(d) list Violations of the state water quality standard Increased risks to human health
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Indiana’s E. coli Water Quality Standard
April 1st through October 31st, E. coli bacteria shall not exceed 125 cfu per 100 milliliters as a geometric mean based on not less than five samples equally spaced over a 30-day period or 235 cfu per 100 milliliters in any one sample in a 30-day period Permitted facilities and CSO’s not allowed to discharge above the standard. People think these facilities can’t meet the standard, but, it is the rule. Tiered use limit – still feeds to a fully supporting use stream. Trying to change this rule since Why can we not sample evenly spaced over a 30 day period when NPDES facilities are not allowed to deviate? Why not use the single day standard as violation? Direct to Jody. From Indiana Administrative code 327 IAC (e)
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Upper White River Headwaters
Figure 1: Watershed Location Map
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WHAT DO WE ALREADY KNOW? An overview of information IDEM has collected
on the extent of impairments, land use in the watershed, water quality data, and possible sources
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Impaired Streams Figure 2: Sampling Sites E. Coli Sampled (2001 & 2006)
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Sample Sites Impaired Segments Map US 20 I80/I90 SR 2
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Land use Land use pie chart
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Land Use Sq Mile Percent Agriculture 212 94.1 % Wetlands 5.83 2.6 %
Forested 3.02 1.3 % Urban 2.24 1.0 % Water 2.29 Figure 3 Land use Map
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NPDES Permitted Facilities
Muncie Sanitary District CSOs Winchester WWTP Farmland Municipal STP Winchester WWTP CSOs Parker City Municipal WWTP Figure 4: NPDES Facility Map Union Elementary & High School
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Confined Feeding Operations
Hamilton Ted Hendrickson Hendrickson (CAFO) Stoney Creek Farms (CAFO) Stoney Creek (CAFO) Lick Skillet Keesling Leroy TK Hog Farm Peacock Guthrie Jacobi Thornburg Keesling Stoney Creek Keesling & Sons Farm #2 Reeder Brothers Cattle Farm Farm #1 Harris Union-Go Dairy Figure 6: CAFO-CFO map CFO 41 Confined Feeding Operations Buena Vista Indiana Trail Nurseries Chamberlain Swine
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WHAT HAPPENS NEXT? What IDEM will be working on and how YOU can get involved and help with the TMDL project
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Next Steps for IDEM Gather more information Write the TMDL report
Present all findings Make information available
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Additional Sources of Information
Health Departments in Randolph and Delaware Counties County Soil and Water Conservation Districts Indiana Department of Natural Resources Hoosier Riverwatch
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IDEM Needs Your Help We need information on – Water quality data
Possible pollution sources Potential stakeholders Studies, reports, documents Projects that have improved water quality How can you reach us? Phone, fax, , or send us a letter!
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TMDL Project Timeline Additional data due by mid-June 2011
Draft TMDL completed by July 2011 Draft Stakeholder Meeting July 2011 30 day public comment period Submit final TMDL to U.S. EPA 30 days to approve TMDL
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Questions? Selena Medrano Phone: (317) 308-3094
TMDL Project Manager Office of Water Quality Indiana Department of Environmental Management 100 North Senate Avenue Indianapolis, Indiana Phone: (317) Fax: (317) Stress availability
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