Kentucky Water Quality Assessment Report

Assessed Waters of Kentucky by Watershed

Search for a waterbody within Kentucky

NOTE: The data provided in this report differs from the information provided in the original Kentucky 2006 305(b) report. This is a result of differences between the Kentucky State assessment database and the summary data provided in Kentucky's 2006 Integrated Report, which is available at http://www.water.ky.gov/sw/swmonitor/305b/.

	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)
	Size of Water
Good Waters	4,403.9	121,124.7
Previously impaired waters now attaining all uses	9.3
Threatened Waters
TMDL completed
TMDL alternative
Non-pollutant impairment
TMDL needed
Impaired Waters	5,783.7	98,432.5
TMDL completed	274.1
TMDL alternative
Non-pollutant impairment		232.0
TMDL needed	5,509.6	98,200.5
New TMDLs completed	21.6	.0
Remaining TMDLs needed	5,488.0	98,200.5

Total Assessed Waters	10,187.7	219,557.2
Total Waters	49,105.0	228,385.0
Percent of Waters Assessed	20.7	96.1

Designated Use	Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Cold Water Aquatic Habitat	326.9	92.2	.0	7.8
Domestic Water Supply	1,368.3	100.0	.0	.0
Fish Consumption	1,712.6	42.2	.0	57.8
Outstanding State Resource Water	1.3	100.0	.0	.0
Primary Contact Recreation Water	3,770.4	42.8	.0	57.2
Secondary Contact Recreation Water	1,101.0	72.6	.0	27.4
Warm Water Aquatic Habitat	9,175.4	59.7	.0	40.3

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
Sedimentation/Siltation	Sediment	2,548.5
Fecal Coliform	Pathogens	1,987.7
Habitat Assessment (Streams)	Cause Unknown - Impaired Biota	1,479.3
Nutrient/Eutrophication Biological Indicators	Nutrients	787.4
Polychlorinated Biphenyls (PCBs)	Polychlorinated Biphenyls (PCBs)	774.0
Cause Unknown	Cause Unknown	670.0
Total Dissolved Solids (TDS)	Salinity/Total Dissolved Solids/Chlorides/Sulfates	659.3
Organic Enrichment (Sewage) Biological Indicators	Organic Enrichment/Oxygen Depletion	622.7
Other Flow Regime Alterations	Flow Alteration(s)	488.2
Methylmercury	Mercury	366.3
Sulfates	Salinity/Total Dissolved Solids/Chlorides/Sulfates	240.3
pH	pH/Acidity/Caustic Conditions	237.6
Turbidity	Turbidity	214.8
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	194.4
Benthic Macroinvertebrates Bioassessments	Cause Unknown - Impaired Biota	151.8
Particle Distribution (Embeddedness)	Sediment	100.9
Phosphorus, Total	Nutrients	100.8
Non-Native Fish/Shellfish/Zooplankton	Nuisance Exotic Species	72.6
Other Cause	Other Cause	53.1
Chlorine	Chlorine	49.9
Aquatic Algae	Algal Growth	49.0
Iron	Metals (other than Mercury)	48.8
Alteration in Stream-Side or Littoral Vegetative Covers	Habitat Alterations	46.1
PCB(s) in Fish Tissue	Polychlorinated Biphenyls (PCBs)	45.7
Cadmium	Metals (other than Mercury)	45.5
Total Suspended Solids (TSS)	Turbidity	40.1
Temperature, Water	Temperature	34.7
Physical Substrate Habitat Alterations	Habitat Alterations	33.3
Chlorophyll-A	Algal Growth	30.4
Fishes Bioassessments (Streams)	Cause Unknown - Impaired Biota	29.5
Zinc	Metals (other than Mercury)	17.0
Ammonia, Un-ionized	Ammonia	15.9
Nitrate/Nitrite (Nitrite + Nitrate as N)	Nutrients	15.7
Copper	Metals (other than Mercury)	14.3
Lead	Metals (other than Mercury)	13.0
Gross Alpha	Radiation	13.0
Beta Particles and Photon Emitters	Radiation	13.0
Non-Native Aquatic Plants	Nuisance Exotic Species	12.9
Total Kjehldahl Nitrogen (TKN)	Nutrients	12.3
Dissolved Oxygen Saturation	Organic Enrichment/Oxygen Depletion	12.2
Chloride	Salinity/Total Dissolved Solids/Chlorides/Sulfates	9.3
Aquatic Plants (Macrophytes)	Noxious Aquatic Plants	9.1
Oil and Grease	Oil and Grease	8.5
Mercury	Mercury	6.5
Nitrogen, Total	Nutrients	6.3
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	5.8
Specific Conductivity	Salinity/Total Dissolved Solids/Chlorides/Sulfates	3.9
Chromium, Total	Metals (other than Mercury)	3.9
Nickel	Metals (other than Mercury)	3.1
Ethylene Glycol	Toxic Organics	1.6

Probable Source	Probable Source Group	Miles Threatened or Impaired
Source Unknown	Unknown	2,301.4
Loss Of Riparian Habitat	Habitat Alterations (Not Directly Related To Hydromodification)	1,062.5
Surface Mining	Resource Extraction	731.4
Agriculture	Agriculture	582.7
Municipal Point Source Discharges	Municipal Discharges/Sewage	549.8
Non-Irrigated Crop Production	Agriculture	511.0
Channelization	Hydromodification	466.7
Habitat Modification - Other Than Hydromodification	Habitat Alterations (Not Directly Related To Hydromodification)	454.4
Crop Production (Crop Land Or Dry Land)	Agriculture	454.0
Livestock (Grazing Or Feeding Operations)	Agriculture	426.8
Streambank Modifications/Destablization	Hydromodification	406.5
Managed Pasture Grazing	Agriculture	383.8
Unspecified Urban Stormwater	Urban-Related Runoff/Stormwater	377.1
Post-Development Erosion And Sedimentation	Hydromodification	338.7
On-Site Treatment Systems (Septic Systems And Similar Decencentralized Systems)	Municipal Discharges/Sewage	335.5
Urban Runoff/Storm Sewers	Urban-Related Runoff/Stormwater	278.4
Highway/Road/Bridge Runoff (Non-Construction Related)	Urban-Related Runoff/Stormwater	264.4
Subsurface (Hardrock) Minining	Resource Extraction	251.4
Petroleum/Natural Gas Production Activities (Permitted)	Industrial	249.7
Site Clearance (Land Development Or Redevelopment)	Construction	177.1
Grazing In Riparian Or Shoreline Zones	Agriculture	170.2
Industrial Point Source Discharge	Industrial	165.8
Silviculture Harvesting	Silviculture (Forestry)	162.2
Silviculture Activities	Silviculture (Forestry)	149.9
Impacts From Abandoned Mine Lands (Inactive)	Resource Extraction	135.2
Dredging (E.G., For Navigation Channels)	Hydromodification	135.0
Acid Mine Drainage	Resource Extraction	125.9
Package Plant Or Other Permitted Small Flows Discharges	Municipal Discharges/Sewage	117.2
Coal Mining	Resource Extraction	108.9
Animal Feeding Operations (Nps)	Agriculture	106.8
Highways, Roads, Bridges, Infrasturcture (New Construction)	Construction	99.7
Illegal Dumps Or Other Inappropriate Waste Disposal	Spills/Dumping	91.5
Municipal (Urbanized High Density Area)	Urban-Related Runoff/Stormwater	89.9
Heap-Leach Extraction Mining	Resource Extraction	87.2
Irrigated Crop Production	Agriculture	85.4
Introduction Of Non-Native Organisms (Accidental Or Intentional)	Other	75.6
Impacts From Hydrostructure Flow Regulation/Modification	Hydromodification	72.6
Petroleum/Natural Gas Activities	Resource Extraction	70.8
Landfills	Land Application/Waste Sites/Tanks	66.9
Inappropriate Waste Disposal	Spills/Dumping	59.8
Rangeland Grazing	Agriculture	55.2
Sanitary Sewer Overflows (Collection System Failures)	Municipal Discharges/Sewage	53.5
Sewage Discharges In Unsewered Areas	Municipal Discharges/Sewage	50.5
Upstream Impoundments (E.G., Pl-566 Nrcs Structures)	Hydromodification	48.7
Wet Weather Discharges (Non-Point Source)	Urban-Related Runoff/Stormwater	43.6
Unrestricted Cattle Access	Agriculture	39.8
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso)	Municipal Discharges/Sewage	35.0
Sediment Resuspension (Contaminated Sediment)	Hydromodification	33.9
Non-Point Source	Unspecified Nonpoint Source	27.8
Other Recreational Pollution Sources	Recreation And Tourism (Non-Boating)	27.5
Dredge Mining	Resource Extraction	25.8
Coal Mining (Subsurface)	Resource Extraction	25.2
Atmospheric Deposition - Toxics	Atmospheric Deposition	22.7
Impervious Surface/Parking Lot Runoff	Urban-Related Runoff/Stormwater	22.1
Runoff From Forest/Grassland/Parkland	Other	21.4
Natural Sources	Natural/Wildlife	20.0
Manure Runoff	Agriculture	17.6
Drainage/Filling/Loss Of Wetlands	Habitat Alterations (Not Directly Related To Hydromodification)	15.7
Permitted Runoff From Confined Animal Feeding Operations (Cafos)	Agriculture	15.5
Other Spill Related Impacts	Spills/Dumping	14.8
Channel Erosion/Incision From Upstream Hydromodifications	Hydromodification	14.6
Golf Courses	Recreation And Tourism (Non-Boating)	12.9
Mine Tailings	Resource Extraction	11.9
Erosion From Derelict Land (Barren Land)	Hydromodification	11.6
Sediment Resuspension (Clean Sediment)	Hydromodification	11.6
Illicit Connections/Hook-Ups To Storm Sewers	Municipal Discharges/Sewage	10.6
Industrial/Commercial Site Stormwater Discharge (Permittted)	Urban-Related Runoff/Stormwater	10.6
Septage Disposal	Municipal Discharges/Sewage	8.7
Residential Districts	Urban-Related Runoff/Stormwater	7.5
Reclamation Of Inactive Mining	Resource Extraction	7.4
Upstream Source	Other	7.0
Silviculture Reforestation	Silviculture (Forestry)	6.6
Combined Sewer Overflows	Municipal Discharges/Sewage	6.3
Permitted Silvicultural Activities	Silviculture (Forestry)	5.9
Crop Production With Subsurface Drainage	Agriculture	5.0
Commercial Districts (Industrial Parks)	Industrial	4.8
Rural (Residential Areas)	Other	4.3
Dairies (Outside Milk Parlor Areas)	Agriculture	4.0
Sources Outside State Juristiction Or Borders	Other	3.6
Speciality Crop Production	Agriculture	3.6
Dam Construction (Other Than Upstream Flood Control Projects)	Hydromodification	3.2
Sand/Gravel/Rock Mining Or Quarries	Resource Extraction	2.9
Commerical Districts (Shopping/Office Complexes)	Urban-Related Runoff/Stormwater	2.6
Nps Pollution From Military Base Facilities (Other Than Port Facilities)	Military Bases	2.5
Airports	Industrial	1.6
Natural Conditions - Water Quality Standards Use Attainability Analyses Needed	Natural/Wildlife	1.2

Designated Use	Acres Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Cold Water Aquatic Habitat	2,410.0	100.0	.0	.0
Domestic Water Supply	202,876.4	99.2	.0	.8
Fish Consumption	203,071.8	54.9	.0	45.1
Primary Contact Recreation Water	2,940.0	100.0	.0	.0
Secondary Contact Recreation Water	23,440.6	47.1	.0	52.9
Warm Water Aquatic Habitat	218,381.0	95.9	.0	4.1

Cause of Impairment	Cause of Impairment Group	Acres Threatened or Impaired
Methylmercury	Mercury	91,660.5
Nutrient/Eutrophication Biological Indicators	Nutrients	9,083.0
pH	pH/Acidity/Caustic Conditions	8,489.0
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	8,234.0
Polychlorinated Biphenyls (PCBs)	Polychlorinated Biphenyls (PCBs)	8,210.0
Dissolved Gas Supersaturation	Other Cause	3,864.0
Total Suspended Solids (TSS)	Turbidity	3,040.0
Sedimentation/Siltation	Sediment	2,417.0
Organic Enrichment (Sewage) Biological Indicators	Organic Enrichment/Oxygen Depletion	1,936.0
Taste and Odor	Taste, Color and Odor	1,171.0
Chlorophyll-A	Algal Growth	548.0
Habitat Assessment (Lakes)	Cause Unknown - Impaired Biota	339.0
Aquatic Plants (Macrophytes)	Noxious Aquatic Plants	331.0
Manganese	Metals (other than Mercury)	317.0
Aquatic Algae	Algal Growth	169.0
Cause Unknown	Cause Unknown	43.0

Probable Source	Probable Source Group	Acres Threatened or Impaired
Source Unknown	Unknown	82,923.5
Atmospheric Deposition - Toxics	Atmospheric Deposition	18,638.0
Upstream Source	Other	11,560.0
Agriculture	Agriculture	9,280.0
Industrial Point Source Discharge	Industrial	8,210.0
Municipal Point Source Discharges	Municipal Discharges/Sewage	6,129.0
On-Site Treatment Systems (Septic Systems And Similar Decencentralized Systems)	Municipal Discharges/Sewage	4,232.0
Livestock (Grazing Or Feeding Operations)	Agriculture	3,356.0
Internal Nutrient Recycling	Natural/Wildlife	3,212.0
Surface Mining	Resource Extraction	3,040.0
Natural Sources	Natural/Wildlife	2,208.0
Heap-Leach Extraction Mining	Resource Extraction	1,230.0
Rural (Residential Areas)	Other	317.0
Littoral/Shore Area Modifications (Non-Riverine)	Habitat Alterations (Not Directly Related To Hydromodification)	232.0
Impacts From Abandoned Mine Lands (Inactive)	Resource Extraction	219.0
Unspecified Urban Stormwater	Urban-Related Runoff/Stormwater	170.0
Non-Irrigated Crop Production	Agriculture	169.0
Crop Production (Crop Land Or Dry Land)	Agriculture	137.0
Grazing In Riparian Or Shoreline Zones	Agriculture	99.0
Habitat Modification - Other Than Hydromodification	Habitat Alterations (Not Directly Related To Hydromodification)	99.0
Septage Disposal	Municipal Discharges/Sewage	98.0
Golf Courses	Recreation And Tourism (Non-Boating)	78.0
Contaminated Sediments	Legacy/Historical Pollutants	18.0

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)
Algal Growth	79.4	548.0
Ammonia	15.9
Cause Unknown	670.0	43.0
Cause Unknown - Impaired Biota	1,636.3	339.0
Chlorine	49.9
Dioxins	194.4
Flow Alteration(s)	488.2
Habitat Alterations	79.4
Mercury	372.8	91,660.5
Metals (other than Mercury)	113.2	317.0
Noxious Aquatic Plants	9.1	331.0
Nuisance Exotic Species	85.5
Nutrients	854.2	9,083.0
Oil and Grease	8.5
Organic Enrichment/Oxygen Depletion	640.7	9,045.0
Other Cause	53.1	3,864.0
Pathogens	1,987.7
pH/Acidity/Caustic Conditions	237.6	8,489.0
Polychlorinated Biphenyls (PCBs)	819.7	8,210.0
Radiation	13.0
Salinity/Total Dissolved Solids/Chlorides/Sulfates	695.3
Sediment	2,565.2	2,417.0
Taste, Color and Odor		1,171.0
Temperature	34.7
Toxic Organics	1.6
Turbidity	240.9	3,040.0

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)
Agriculture	1,985.3	9,449.0
Atmospheric Deposition	22.7	18,638.0
Construction	237.9
Habitat Alterations (Not Directly Related To Hydromodification)	1,502.0	331.0
Hydromodification	1,213.3
Industrial	421.9	8,210.0
Land Application/Waste Sites/Tanks	66.9
Legacy/Historical Pollutants		18.0
Military Bases	2.5
Municipal Discharges/Sewage	1,035.8	7,519.0
Natural/Wildlife	21.2	5,420.0
Other	100.4	11,877.0
Recreation And Tourism (Non-Boating)	40.4	78.0
Resource Extraction	1,094.4	3,259.0
Silviculture (Forestry)	295.8
Spills/Dumping	166.1
Unknown	2,301.4	82,923.5
Unspecified Nonpoint Source	27.8
Urban-Related Runoff/Stormwater	813.0	170.0

Year Attaining	Number of Waters Attaining	Number of Causes of Impairment Addressed
NOTE: Click on the underlined "Number of Waters Attaining" value for a detailed list of those previously 303(d)-listed waters now attaining all applicable water quality standards.
2008	1	1

Cause of Impairment Group Name	Number of Causes of Impairment Reported
NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment.
Sediment	511
Pathogens	244
Nutrients	201
Salinity/Total Dissolved Solids/Chlorides/Sulfates	163
Cause Unknown	159
Organic Enrichment/Oxygen Depletion	131
Turbidity	49
Polychlorinated Biphenyls (PCBs)	38
Metals (other than Mercury)	36
Mercury	32
pH/Acidity/Caustic Conditions	32
Temperature	13
Dioxins	10
Other Cause	7
Ammonia	6
Chlorine	5
Radiation	4
Oil and Grease	3
Cause Unknown - Impaired Biota	2

Pollutant	Number of TMDLs	Number of Causes of Impairment Addressed
NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant.
Pathogens	91	92
Escherichia Coli (E. Coli)	89	89
Fecal Coliform	34	34
pH	21	22
Chlorides	5	5
Carbonaceous Bod	3	3
NH3-N	3	3
Phosphorus, Total	2	2
Low pH	1	1
Polychlorinated Biphenyls (PCBs)	1	1
Total Residual Chlorine	1	1

Fiscal Year	Number of TMDLs	Number of Causes of Impairment Addressed
NOTE: Click on the underlined "Number of TMDLs Completed" value for a detailed list of the TMDLs for the fiscal year.
1998	16	16
1999	7	7
2000	2	2
2001	18	18
2004	4	4
2006	12	12
2007	9	9
2008	19	19
2009	40	40
2010	47	49
2011	60	60
2012	17	17

Kentucky Water Quality Assessment Report

Features

Site-specific Targeted Monitoring Summary Results

Kentucky (2006)

Summary of Water Quality Assessments for Each Waterbody Typefor Reporting Year 2006

Site-specific Targeted Monitoring Results

Kentucky Rivers and Streams 2006

Site-specific Targeted Monitoring Results

Individual Designated Use SupportKentucky Rivers and Streams 2006

Site-specific Targeted Monitoring Results

Causes of ImpairmentKentucky Rivers and Streams 2006

Site-specific Targeted Monitoring Results

Probable SourcesKentucky Rivers and Streams 2006

Site-specific Targeted Monitoring Results

Kentucky Lakes, Reservoirs, and Ponds 2006

Site-specific Targeted Monitoring Results

Individual Designated Use SupportKentucky Lakes, Reservoirs, and Ponds 2006

Site-specific Targeted Monitoring Results

Causes of ImpairmentKentucky Lakes, Reservoirs, and Ponds 2006

Site-specific Targeted Monitoring Results

Probable SourcesKentucky Lakes, Reservoirs, and Ponds 2006

Kentucky Causes of Impairment for Reporting Year 2006

Kentucky Probable Sources Contributing to Impairmentsfor Reporting Year 2006

Kentucky TMDL Alternatives by Cause of Impairment 2006

Kentucky Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards

Kentucky Causes of Impairment for 303(d) Listed Waters

Kentucky Cumulative TMDLs by Pollutant

Kentucky Cumulative Number of TMDLs

TMDL Document Search

Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2006

Individual Designated Use Support
Kentucky Rivers and Streams 2006

Causes of Impairment
Kentucky Rivers and Streams 2006

Probable Sources
Kentucky Rivers and Streams 2006

Individual Designated Use Support
Kentucky Lakes, Reservoirs, and Ponds 2006

Causes of Impairment
Kentucky Lakes, Reservoirs, and Ponds 2006

Probable Sources
Kentucky Lakes, Reservoirs, and Ponds 2006

Kentucky Probable Sources Contributing to Impairments
for Reporting Year 2006