(TMDL) Program in Illinois Jennifer Clarke Planning Unit Watershed - PowerPoint PPT Presentation

The Total Maximum Daily Load (TMDL) Program in Illinois Jennifer Clarke Planning Unit Watershed Management Section Bureau of Water Illinois EPA

TMDL 305(b) Assessments (Designated Uses/Standards, Bio/Chem Data) 303(d) List (Impairments) TMDL 11/17/2011 2

Impaired Waters- 2008 • 1,030 water body segments – 716 stream segments – 314 lakes – 51 Lake Michigan beaches – 14 Lake Michigan open water stations – 2 Lake Michigan harbors Impaired Assessed Stream Miles 8,537 15,569 Lake Acres 142,761 147,361 11/17/2011 3

What is a TMDL? • “TMDL is a calculation of the maximum amount of a pollutant that a water body can receive and still meet water quality standards and support designated uses.” 11/17/2011 4

What is a LRS? • A Load Reduction Strategy (LRS) is essentially the same as a TMDL, but does not allocate between point and nonpoint sources. There are no wasteload allocations if there are no numeric standards in place. 11/17/2011 5

TMDL Calculation TMDL = WLA + LA + MOS • Wasteload allocation--point sources/ NPDES • Load allocation--nonpoint sources • Margin of safety 11/17/2011 6

TMDL / LRS PROCESS- IL • Public meetings held in the watersheds throughout TMDL process to inform stakeholders on TMDL developments. • TMDLs currently being developed in three stages • Currently, Illinois EPA only developing TMDL allocations for parameters with numeric standards and LRS for nonnumeric parameters • Once the TMDL report is complete, it is sent to USEPA for approval 11/17/2011 7

TMDL & LRS- Middle Illinois River • Multiple interest in watershed- USACE Comprehensive Plan/projects, USGG bacteria study, TCRPC studies, NRCS MRBI watersheds, ISWS projects • Higher prioritization for TMDL development may give more funding opportunities 11/17/2011 8

Stage 1 TMDL/ LRS Development • Watershed Characterization, Data Analysis, Model Selection • Description of the watershed • Collection/analysis of available data • Identifies targets • ID methodologies, procedures and models to be used to determine load reductions/allocations • Two meetings held August 2, 2010 in Peoria and Princeton • Responsiveness Summary for Stage 1 11/17/2011 9

Stage 2 TMDL Development • Stage 2 : Data Collection – Optional Stage • Collection of mainstem and tributary data- Sandy Creek, Crow Creek, Senachwine Creek, Lime Creek, Big Bureau Creeks 11/17/2011 10

Stage 3 TMDL Development • Stage 3 : Load Duration Curve Analysis, Calculate Loads/Reductions, Implementation Plan • Develop TMDLs with data from stages 1 (& 2) • Calculate loads for each pollutant • TMDL Load allocations (WLA and LA), determine pollutant reduction needs. • Develop a general implementation plan/ ongoing projects in watershed 11/17/2011 11

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What’s Next? • Comments and suggestions received during the comment period will be reviewed and considered. • A Final TMDL Report will be completed and posted online. • Phase Two- Implementation Plan • Ongoing MRBI projects in Senachwine and Big Bureau Creek watersheds • River Action Network 11/17/2011 13

Phase II- Implementation Plan • Urban stormwater best management practices (BMPs) • Hillslope and river bluff erosion control – Targeted restoration/stabilization sites – ISWS sedimentation budget analysis 11/17/2011 14

For more information on Illinois TMDLs • U.S. EPA contact- Chris Urban Email- Urban.Christine@epa.gov • Illinois EPA TMDL web site: www.epa.state.il.us/tmdl Email: Jennifer.Clarke@Illinois.gov 1021 N. Grand Ave East (#15) P.O. Box 19276 Springfield, IL 62794-9276 Phone: 217/782-3362 11/17/2011 15

Middle Illinois River TMDLs and Load Reduction Strategies Jennifer Olson Tetra Tech, Inc. November 16, 2011 Peoria, Illinois

Presentation Overview ► What is a TMDL? ► TMDL Process ► TMDL Analysis and Conclusions ► Implementation Recommendations ► Questions & Comments

What is a TMDL? ► Total Maximum Daily Loads (TMDLs) are part of the 1972 Clean Water Act  Goal of the Act is to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters ► Section 303(d)  States must develop a list of waterbodies not meeting water quality standards  Must develop a TMDL that identifies the loads that will allow the waterbody to attain water quality standards

What is a TMDL? (continued) ► TMDL report is prepared for USEPA review and approval  Report summarizes the conclusions of the analysis and presents the allocations ► Wasteload allocations for regulated sources  Can result in more restrictive permits ► Load allocations for unregulated sources  Can only be implemented through voluntary actions

Project Area ► 2,100 square mile Middle Illinois watershed River Watershed ► Illinois River Bluffs Region ► Many tributary Illinois River inputs Watershed ► Backwater lakes

Key Issues in the Illinois River Basin ► excessive ► loss of aquatic sedimentation connectivity on the Illinois River and its ► loss of productive tributaries backwaters, side ► altered hydrologic channels and islands regime ► loss of floodplain, ► water quality and riparian, and sediment quality aquatic habitats ► invasive species and function

Previous Work ► Tri-County Regional Planning Commission  Farm Creek + Main Stem + Other ► IL State Water Survey – Sediment work ► IL DNR – Big Bureau Creek + Bluffs ► US Army Corps of Engineers  Senachwine Creek  IL River Basin Comprehensive Plan

Why are TMDLs and LRSs needed for the Middle Illinois River watershed? ► Streams/River not meeting water quality standards  Pathogens ( Fecal Coliform )  Chloride  Manganese  Total Dissolved Solids  Phosphorus (lakes)  Sediment  Nutrients

► Three Impaired Main Stem Segments ► Three Impaired Tributaries  Big Bureau  Kickapoo  Farm ► Two Impaired Lakes  Depue  Senachwine

TMDL Pollutants Impaired Water TMDL Pollutant Name Fecal coliform Fecal coliform Illinois River Fecal coliform, manganese, total dissolved solids Kickapoo Creek Fecal coliform Big Bureau Fecal coliform Creek West Bureau Fecal coliform Creek Farm Creek Chloride Phosphorus, dissolved Depue Lake oxygen Senachwine Phosphorus, dissolved Lake oxygen

LRS Pollutants Water LRS Pollutants Name Illinois River Kickapoo Creek Senachwine Creek Snag and Crow Sedjment, total Creek phosphorus, nitrate Sandy Creek plus nitrite nitrogen Big Bureau Creek West Bureau Creek Farm Creek Depue Lake Sediment, nitrate Senachwine Lake plus nitrite nitrogen

TMDL Process ► Compile and evaluate water quality data ► Identify potential sources and determine if they are contributing to impairment ► Calculate allowable load and allocate to regulated and unregulated sources ► Make implementation recommendations

Kickapoo Creek - Bacteria Kickapoo Creek at Bartonville Annual Variation (1979 – 2010) Site: DL-01 100,000 10,000 Fecal Coliform (cfu/100 mL) 25-75th Percentile Median 1,000 10th-90th Percentile Acute 100 Standard Geomean Standard 10 1 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Illinois River – Phosphorus Contributions

Kickapoo Creek - Sediment Kickapoo Creek at Bartonville Annual Variation (1979 – 2010) Site: DL-01 10,000 1,000 Total Suspended Solids (mg/L) 25-75th Percentile Median 10th-90th 100 Percentile Median Annual T arget 10 1 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Kickapoo Creek - Sediment Illinois River Tributaries Longitudinal Profile Kickapoo Creek 1,000 Big Bureau Creek West Bureau Creek Senachwine Creek Farm Creek Sandy Creek Crow Creek Total Suspended Solids (mg/L) 25-75th 100 Percentile Median 10th-90th Percentile Median 10 Annual T arget D-23 D-16 D-09 D-30 D-05 1 Upstream to Downstream (Not to Scale)

Source Identification ► Wastewater (facilities, overflows, septics) ► Industrial facilities ► Stormwater runoff (urban and agricultural) ► Erosion (bluffs, channel, gullies) ► Animal agriculture (stream access, AFOs)

Source Identification Duration Curve Zone Contributing source area High Moist Mid-range Dry Low Point source M H Livestock direct access to streams M H On-site wastewater systems M M-H H H H Riparian areas H H M Storm water: Imperviousness H H H Combined sewer overflow H H H Storm water: Upland H H M Field drainage: Natural condition H M Field drainage: Tile system H H M-H L-M Bank erosion H M Stormwater BMPs Bank Stabilization Implementation Opportunities Erosion Control Program Riparian Buffer Protection Point Sources