Upload
ian-valentine
View
32
Download
2
Tags:
Embed Size (px)
DESCRIPTION
TMDL 101 – Everything You Ever Wanted to Know About Total Maximum Daily Loads. Staci Goodwin Senior TMDL Project Manager Office of Water Quality. The Total Maximum Daily Load Program (TMDL) The TMDL Process. Presentation Overview. The Total Maximum Daily Load Program. - PowerPoint PPT Presentation
Citation preview
TMDL 101 –Everything You Ever Wanted to Know About
Total Maximum Daily Loads
Staci GoodwinSenior TMDL Project Manager
Office of Water Quality
Presentation Overview
• The Total Maximum Daily Load Program (TMDL)
• The TMDL Process
The Total Maximum Daily Load Program
What is it and what does it do?
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
What is a Watershed?
TMDL Components• The sum of allowable loads from point sources
(WLA) and nonpoint sources (LA) plus a margin of safety (MOS)
TMDL = ∑WLA + ∑LA + MOS
Why do TMDLs?• Required by the Clean Water
Act
• Provide overview of watershed condition
• Guide local actions to correct problems
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
The TMDL Process
An overview of how TMDLs are created
What are Impaired Waters?• Waterbodies sampled for
water quality
• Waterbodies where a “use” is adversely affected
• Waterbodies assessed by IDEM
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
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
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
Internal Data Gathering• ArcGIS map of area• 303(d) listing
information• Assessment database• Landuse GAP
• Confined Feeding Operations
• Concentrated Animal Feeding Operations
• NPDES permits• NPDES violations• Enforcement cases
External Data Gathering• Stakeholders
• Soil and Water Conservation Districts
• Health Departments
• Federal Government Agencies
• Watershed groups
• Purdue Extension offices
• Universities
Reassessing a Waterbody
• Evaluate listing inconsistencies
• Determine what is and is not impaired
• Incorporate new data into the TMDL process
Stakeholder Meetings• Explain the process
• Ask for information
• Present information
• Build local partnerships
The TMDL Report• Overview of watershed condition
• Identification of sources
• Discussion of analytical process
• Load reductions
• Current water quality efforts
• Recommended actions
TMDL Facts• Stakeholder driven process
• Based on specific watershed data
• Non-regulatory program
• Can impact permits
• “Living Document”
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
The Result?
Questions?
Staci GoodwinSenior TMDL Project ManagerWatershed Restoration and Planning SectionOffice of Water QualityIndiana Department of Environmental Management100 North Senate AvenueIndianapolis, Indiana 46204
PH: (317) 308-3387FX: (317) 308-3219EMAIL: [email protected]
White River Headwaters TMDLKickoff Meeting Technical Presentation
Stakeholder Meeting
May 26, 2011
Presentation Overview
• Why are we here?
• What do we already know?
• What happens next?
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
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
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
From Indiana Administrative code 327 IAC 2-1.5-8(e)
Upper White River Headwaters
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
Impaired Streams
US 20
SR 2I80/I90
Sample Sites
Land use
Land Use
NPDES Permitted Facilities
Parker City Municipal WWTP
Winchester WWTPFarmland Municipal STP
Union Elementary & High School
Muncie Sanitary District CSOs
Winchester WWTP CSOs
Confined Feeding Operations
Keesling Leroy
Guthrie
Keesling & Sons
Farm #1
Keesling
Reeder Brothers Cattle FarmFarm #2
Jacobi
HamiltonTed HendricksonHendrickson (CAFO)Stoney Creek Farms (CAFO)Stoney Creek (CAFO)
Harris
Chamberlain Swine
Stoney Creek
Indiana Trail Nurseries
Buena VistaUnion-Go Dairy
TK Hog Farm
Lick Skillet
Peacock
Thornburg
WHAT HAPPENS NEXT?
What IDEM will be working on and how YOU can get involved and help with the TMDL project
Next Steps for IDEM• Gather more information
• Write the TMDL report
• Present all findings
• Make information available
Additional Sources of Information• Health Departments in Randolph and
Delaware Counties• County Soil and Water Conservation Districts• Indiana Department of Natural Resources• Hoosier Riverwatch
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, e-mail, or send us a letter!
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
Selena MedranoTMDL Project ManagerOffice of Water QualityIndiana Department of Environmental Management100 North Senate AvenueIndianapolis, Indiana 46204-2251
Phone: (317) 308-3094Fax: (317) 308-3219E-mail: [email protected]/2347.htm
Questions?