Indiana Assessment Data for 2010

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Indiana Assessment Summary
Water Quality by Waterbody Type
Causes of Impairment
Probable Sources Contributing to Impairments
TMDL Alternatives by Cause of Impairment

Data are also available for these cycles:
2002 2004 2006 2008

For More Information:

Indiana Assessment Report
State Water Quality Program

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Assessed Waters of Indiana by Watershed

Search for a waterbody within Indiana

Features

Site-specific Targeted Monitoring Summary Results

Indiana (2010)

Description of this table

	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Great Lakes Shoreline (Miles)
	Size of Water
Good Waters	7,415.7	10,196.0
Previously impaired waters now attaining all uses	468.8	4,401.0
Threatened Waters
TMDL completed
TMDL alternative
Non-pollutant impairment
TMDL needed
Impaired Waters	16,654.3	220,886.6	67.1
TMDL completed	2,070.4
TMDL alternative
Non-pollutant impairment	47.8
TMDL needed	14,536.1	220,886.6	67.1

Total Assessed Waters	24,070.1	231,082.6	67.1
Total Waters	35,673.0	276,478.5	67.1
Percent of Waters Assessed	67.5	83.6	100.0

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2010

Site-specific Targeted Monitoring Results

Indiana Rivers and Streams 2010

Description of this table

Assessed Status	Miles

Assessed	24,070.1
Unassessed	11,602.9
Total Miles	35,673.0

Description of this table

Attainment Status	Miles

Good	7,415.7
Threatened	.0
Impaired	16,654.3
Total Miles Assessed	24,070.1

Description of this table

TMDL Development Status	Miles

All TMDLs completed	2,070.4
TMDL alternative	.0
Non-pollutant impairment	47.8
TMDL needed	14,536.1
Total Threatened and Impaired	16,654.3

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Indiana Rivers and Streams 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table

Designated Use	Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Full Body Contact	16,796.1	24.4	.0	75.6
Human Health And Wildlife	4,995.1	21.7	.0	78.3
Public Water Supply	1.0	.0	.0	100.0
Warm Water Aquatic Life	19,652.7	71.1	.0	28.9

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Site-specific Targeted Monitoring Results

Causes of Impairment
Indiana Rivers and Streams 2010

Description of this table

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
Escherichia Coli (E. Coli)	Pathogens	12,682.0
Cause Unknown	Cause Unknown	3,669.3
PCB(s) in Fish Tissue	Polychlorinated Biphenyls (PCBs)	3,477.7
Mercury in Fish Tissue	Mercury	1,759.5
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	1,471.5
Nutrient/Eutrophication Biological Indicators	Nutrients	1,087.5
PCB in Water Column	Polychlorinated Biphenyls (PCBs)	364.3
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	364.3
Mercury in Water Column	Mercury	255.0
Chloride	Salinity/Total Dissolved Solids/Chlorides/Sulfates	166.2
Cyanide (as Free Cyanide)	Toxic Inorganics	162.1
pH	pH/Acidity/Caustic Conditions	144.7
Sulfates	Salinity/Total Dissolved Solids/Chlorides/Sulfates	136.1
Chlorophyll-A	Algal Growth	98.4
Temperature, Water	Temperature	96.3
Sedimentation/Siltation	Sediment	85.0
Physical Substrate Habitat Alterations	Habitat Alterations	74.9
Cyanide	Toxic Inorganics	57.6
Hexachlorocyclohexane (Mixture)	Pesticides	57.2
Ammonia, Un-ionized	Ammonia	44.6
Low Flow Alterations	Flow Alteration(s)	33.4
Organic Enrichment (Sewage) Biological Indicators	Organic Enrichment/Oxygen Depletion	32.5
Polycyclic Aromatic Hydrocarbons (PAHs) (Aquatic Ecosystems)	Toxic Organics	28.5
Oil and Grease	Oil and Grease	28.3
Atrazine	Pesticides	6.5

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Site-specific Targeted Monitoring Results

Probable Sources
Indiana Rivers and Streams 2010

Description of this table

Probable Source	Probable Source Group	Miles Threatened or Impaired
Non-Point Source	Unspecified Nonpoint Source	9,787.1
Source Unknown	Unknown	5,460.3
Animal Feeding Operations (Nps)	Agriculture	4,960.0
Livestock (Grazing Or Feeding Operations)	Agriculture	3,259.4
Sewage Discharges In Unsewered Areas	Municipal Discharges/Sewage	3,199.9
Waterfowl	Natural/Wildlife	2,122.7
Wildlife Other Than Waterfowl	Natural/Wildlife	2,122.7
Crop Production With Subsurface Drainage	Agriculture	1,912.7
Package Plant Or Other Permitted Small Flows Discharges	Municipal Discharges/Sewage	1,602.8
Permitted Runoff From Confined Animal Feeding Operations (Cafos)	Agriculture	1,308.6
Municipal Point Source Discharges	Municipal Discharges/Sewage	1,044.6
Combined Sewer Overflows	Municipal Discharges/Sewage	987.6
Unspecified Urban Stormwater	Urban-Related Runoff/Stormwater	832.6
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems)	Municipal Discharges/Sewage	759.9
Loss Of Riparian Habitat	Habitat Alterations (Not Directly Related To Hydromodification)	593.1
Natural Sources	Natural/Wildlife	530.2
Agriculture	Agriculture	482.9
Impervious Surface/Parking Lot Runoff	Urban-Related Runoff/Stormwater	396.5
Impacts From Hydrostructure Flow Regulation/Modification	Hydromodification	381.0
Illegal Dumps Or Other Inappropriate Waste Disposal	Spills/Dumping	375.0
Streambank Modifications/Destabilization	Hydromodification	341.2
Unrestricted Cattle Access	Agriculture	315.9
Industrial Point Source Discharge	Industrial	242.5
Channelization	Hydromodification	208.1
Illicit Connections/Hook-Ups To Storm Sewers	Municipal Discharges/Sewage	199.9
Contaminated Sediments	Legacy/Historical Pollutants	182.8
Acid Mine Drainage	Resource Extraction	172.2
Crop Production (Crop Land Or Dry Land)	Agriculture	96.2
Wastes From Pets	Urban-Related Runoff/Stormwater	86.6
Reclamation Of Inactive Mining	Resource Extraction	78.2
Historic Bottom Deposits (Not Sediment)	Legacy/Historical Pollutants	68.1
Urban Runoff/Storm Sewers	Urban-Related Runoff/Stormwater	63.1
Dredge Mining	Resource Extraction	51.1
Upstream/Downstream Source	Other	43.4
Managed Pasture Grazing	Agriculture	42.0
Site Clearance (Land Development Or Redevelopment)	Construction	33.4
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso)	Municipal Discharges/Sewage	15.4
Dam Construction (Other Than Upstream Flood Control Projects)	Hydromodification	13.9
Sanitary Sewer Overflows (Collection System Failures)	Municipal Discharges/Sewage	12.8
Rural (Residential Areas)	Other	9.8
Impacts From Abandoned Mine Lands (Inactive)	Resource Extraction	8.8
Upstream Impoundments (E.G., Pl-566 Nrcs Structures)	Hydromodification	8.1
Contaminated Groundwater	Groundwater Loadings/Withdrawals	6.4
Golf Courses	Recreation And Tourism (Non-Boating)	6.4
Rcra Hazardous Waste Sites	Industrial	3.4
Post-Development Erosion And Sedimentation	Hydromodification	3.4
Highways, Roads, Bridges, Infrastructure (New Construction)	Construction	2.1
Discharges From Biosolids (Sludge) Storage, Application Or Disposal	Land Application/Waste Sites/Tanks	1.1

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Site-specific Targeted Monitoring Results

Indiana Lakes, Reservoirs, and Ponds 2010

Description of this table

Assessed Status	Acres

Assessed	231,082.6
Unassessed	45,395.9
Total Acres	276,478.5

Description of this table

Attainment Status	Acres

Good	10,196.0
Threatened	.0
Impaired	220,886.6
Total Acres Assessed	231,082.6

Description of this table

TMDL Development Status	Acres

All TMDLs completed	.0
TMDL alternative	.0
Non-pollutant impairment	.0
TMDL needed	220,886.6
Total Threatened and Impaired	220,886.6

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Indiana Lakes, Reservoirs, and Ponds 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table

Designated Use	Acres Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Full Body Contact	31,804.6	74.8	.0	25.2
Human Health And Wildlife	220,422.6	3.5	.0	96.5
Public Water Supply	16,615.0	1.4	.0	98.6
Warm Water Aquatic Life	10,315.0	35.8	.0	64.2

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Site-specific Targeted Monitoring Results

Causes of Impairment
Indiana Lakes, Reservoirs, and Ponds 2010

Description of this table

Cause of Impairment	Cause of Impairment Group	Acres Threatened or Impaired
Mercury in Fish Tissue	Mercury	193,482.6
PCB(s) in Fish Tissue	Polychlorinated Biphenyls (PCBs)	187,256.6
Chlorophyll-A	Algal Growth	16,385.0
Taste and Odor	Taste, Color and Odor	16,385.0
Phosphorus, Total	Nutrients	7,023.0
Cause Unknown	Cause Unknown	6,520.0
Temperature, Water	Temperature	1,556.0
Escherichia Coli (E. Coli)	Pathogens	983.0
pH	pH/Acidity/Caustic Conditions	105.0

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Site-specific Targeted Monitoring Results

Probable Sources
Indiana Lakes, Reservoirs, and Ponds 2010

Description of this table

Probable Source	Probable Source Group	Acres Threatened or Impaired
Source Unknown	Unknown	214,173.6
Non-Point Source	Unspecified Nonpoint Source	7,054.0
Industrial Point Source Discharge	Industrial	1,556.0
Acid Mine Drainage	Resource Extraction	105.0
Impervious Surface/Parking Lot Runoff	Urban-Related Runoff/Stormwater	30.0
Agriculture	Agriculture	30.0
Combined Sewer Overflows	Municipal Discharges/Sewage	30.0

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Site-specific Targeted Monitoring Results

Indiana Great Lakes Shoreline 2010

Description of this table

Assessed Status	Miles

Assessed	67.1
Unassessed	-.0
Total Miles	67.1

Description of this table

Attainment Status	Miles

Good	.0
Threatened	.0
Impaired	67.1
Total Miles Assessed	67.1

Description of this table

TMDL Development Status	Miles

All TMDLs completed	.0
TMDL alternative	.0
Non-pollutant impairment	.0
TMDL needed	67.1
Total Threatened and Impaired	67.1

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Indiana Great Lakes Shoreline 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table

Designated Use	Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Full Body Contact	67.1	6.8	.0	93.2
Human Health And Wildlife	67.1	.0	.0	100.0
Public Water Supply	35.0	100.0	.0	.0
Warm Water Aquatic Life	67.1	93.2	.0	6.8

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Site-specific Targeted Monitoring Results

Causes of Impairment
Indiana Great Lakes Shoreline 2010

Description of this table

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
PCB(s) in Fish Tissue	Polychlorinated Biphenyls (PCBs)	67.1
Mercury in Fish Tissue	Mercury	67.1
Escherichia Coli (E. Coli)	Pathogens	62.6
Cyanide (as Free Cyanide)	Toxic Inorganics	4.5

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Site-specific Targeted Monitoring Results

Probable Sources
Indiana Great Lakes Shoreline 2010

Description of this table

Probable Source	Probable Source Group	Miles Threatened or Impaired
Source Unknown	Unknown	67.1
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems)	Municipal Discharges/Sewage	22.0
Illicit Connections/Hook-Ups To Storm Sewers	Municipal Discharges/Sewage	22.0
Non-Point Source	Unspecified Nonpoint Source	5.6

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Indiana Causes of Impairment for Reporting Year 2010

Description of this table

Cause of Impairment Group	Size of Assessed Waters with Listed Causes of Impairment
NOTE: Click on the underlined Cause of Impairment Group to see a list of specific state causes of impairment making up the Cause of Impairment Group. See also Pollution categories summary document (PDF) (20 pp, 557K, About PDF) for brief, non-technical descriptions of general cause categories.
Cause of Impairment Group	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Great Lakes Shoreline (Miles)
Algal Growth	98.4	16,385.0
Ammonia	44.6
Cause Unknown	3,669.3	6,520.0
Dioxins	364.3
Flow Alteration(s)	33.4
Habitat Alterations	74.9
Mercury	1,759.5	193,482.6	67.1
Nutrients	1,087.5	7,023.0
Oil and Grease	28.3
Organic Enrichment/Oxygen Depletion	1,489.0
Pathogens	12,682.0	983.0	62.6
Pesticides	57.2
pH/Acidity/Caustic Conditions	144.7	105.0
Polychlorinated Biphenyls (PCBs)	3,551.2	187,256.6	67.1
Salinity/Total Dissolved Solids/Chlorides/Sulfates	302.3
Sediment	85.0
Taste, Color and Odor		16,385.0
Temperature	96.3	1,556.0
Toxic Inorganics	219.7		4.5
Toxic Organics	28.5

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Indiana Probable Sources Contributing to Impairments
for Reporting Year 2010

Description of this table

Probable Source Group	Size of Assessed Waters with Probable Sources of Impairments
NOTE: Click on the underlined Probable Source Group to see a list of specific state Probable Sources making up the Probable Source Group.
Probable Source Group	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Great Lakes Shoreline (Miles)
Agriculture	7,637.9	30.0
Construction	33.4
Groundwater Loadings/Withdrawals	6.4
Habitat Alterations (Not Directly Related To Hydromodification)	593.1
Hydromodification	627.3
Industrial	245.9	1,556.0
Land Application/Waste Sites/Tanks	1.1
Legacy/Historical Pollutants	250.9
Municipal Discharges/Sewage	5,682.7	30.0	22.0
Natural/Wildlife	2,594.1
Other	53.2
Recreation And Tourism (Non-Boating)	6.4
Resource Extraction	302.8	105.0
Spills/Dumping	375.0
Unknown	5,460.3	214,173.6	67.1
Unspecified Nonpoint Source	9,787.1	7,054.0	5.6
Urban-Related Runoff/Stormwater	1,351.4	30.0

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Indiana TMDL Alternatives by Cause of Impairment 2010

Description of this table

Cause of Impairment	Number of TMDL Alternatives	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)
NOTE: Click on the underlined "Number of TMDL Alternatives by Cause of Impairment " value to see a listing of those Causes of Impairment.
Temperature, Water	6	18	1,556
Cause Unknown	3	4	1,556

Total: 9 TMDL Alternatives

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