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Assessment Data for the State of Michigan Year 2002
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Impaired Water Information
Other Water Assessment Information
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State of Michigan websites: | No State 305(b) Water Quality Assessment Report is available. |
| State Water Quality Program |
Search for a Waterbody within Michigan
Total Assessed Waters for the State of Michigan
Description of this table| Size Of Water | ||||||||
|---|---|---|---|---|---|---|---|---|
| Rivers, Streams, Creeks (Miles) | Lakes, Ponds, Reservoir (Acres) | Bays, Estuaries (Square Miles) | Coastal Shorelines (Miles) | Oceans, Near Coastal Waters (Square Miles) | Wetlands (Acres) | Great Lakes Shoreline (Miles) | Great Lakes Open Water (Square Miles) | |
| Total Assessed Waters | 22,075.09 | 360,554.93 | .00 | .00 | .00 | 690.00 | 23.80 | 49,872.66 |
| Estimated Total Water Size in MI | 49,136.00 | 889,600.00 | Unavailable | Unavailable | Unavailable | 6,239,763.00 | 3,250.00 | Unavailable |
| Percent of Waters Assessed | 44.93 | 40.53 | Unavailable | Unavailable | Unavailable | .01 | .73 | Unavailable |
Assessed Waters of Michigan by Watershed
Description of this table| Watershed | Size of Water | |||||||
|---|---|---|---|---|---|---|---|---|
| Rivers, Streams, Creeks (Miles) | Lakes, Ponds, Reservoir (Acres) | Bays, Estuaries (Square Miles) | Coastal Shorelines (Miles) | Oceans, Near Coastal Waters (Square Miles) | Wetlands (Acres) | Great Lakes Shoreline (Miles) | Great Lakes Open Water (Square Miles) | |
| AU GRES-RIFLE | 70.00 | 493.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AU SABLE | .00 | 1,320.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BETSIE-PLATTE | .00 | 16,740.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BETSY-CHOCOLAY | 288.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BLACK | 165.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BLACK-MACATAWA | 15.20 | 1,780.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BLACK-PRESQUE ISLE | 13.00 | 314.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BOARDMAN-CHARLEVOIX | 152.00 | 29,915.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BREVOORT-MILLECOQUINS | 3.00 | 1,899.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BRULE | 165.90 | 1,096.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CARP-PINE | .00 | 1,385.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CASS | 167.50 | 120.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CEDAR-FORD | 408.00 | 71.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHEBOYGAN | 167.00 | 34,480.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CLINTON | 30.00 | 548.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DEAD-KELSEY | 453.80 | 906.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DETROIT | 232.00 | 760.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ESCANABA | 64.50 | 566.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FISHDAM-STURGEON | 172.00 | 455.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FLINT | 52.00 | 1,500.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HURON | 4.00 | 4,527.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| KALAMAZOO | 40.10 | 192.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| KEWEENAW PENINSULA | 522.60 | 13,629.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LITTLE CALUMET-GALIEN | 13.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LONE LAKE-OCQUEOC | 72.00 | 278.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER GRAND | 284.00 | 1,362.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MANISTEE | 41.00 | 3,006.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MANISTIQUE | 3.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MAPLE | 2.00 | 412.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MENOMINEE | 347.00 | 480.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MICHIGAMME | 278.00 | 7,403.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUSKEGON | 965.90 | 35,334.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ONTONAGON | 39.00 | 17,171.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OTTAWA-STONY | 34.85 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PERE MARQUETTE-WHITE | 582.25 | 13,152.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PIGEON-WISCOGGIN | 2.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PINE | 37.00 | 444.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RAISIN | 40.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SAGINAW | 108.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SHIAWASSEE | 304.00 | 1,487.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ST. CLAIR | .50 | 14.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ST. JOSEPH | 179.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ST. JOSEPH | 947.40 | 3,300.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| STURGEON | 666.60 | 1,688.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TACOOSH-WHITEFISH | 334.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TAHQUAMENON | 1.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| THORNAPPLE | 15.00 | 430.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| THUNDER BAY | 691.00 | 392.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TIFFIN | 129.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TITTABAWASSEE | .00 | 1,370.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER GRAND | 364.40 | 614.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| WAISKA | 27.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| Name Not Reported | 12,654.29 | 164,086.93 | .00 | .00 | .00 | 690.00 | 23.80 | 49,872.66 |
Michigan Assessed Waters
Individual Use Support for Rivers and Streams
Description of this table
| State Designated Use | Total Miles Assessed | Percent Good | Percent Threatened | Percent Impaired |  % Good |
|
|---|---|---|---|---|---|---|
 % Threatened |
||||||
 % Impaired |
||||||
 |
Recreation | 12,104.42 | 91.36 | .00 | 8.64 | |
 |
Aquatic Life Harvesting | 22,064.09 | 87.25 | .00 | 12.75 | |
Michigan Assessed Waters
Water Quality Attainment for Rivers and Streams
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 19,073.97 | 86.40 |
| Threatened | .00 | .00 |
| Impaired | 3,001.12 | 13.60 |
| Total Miles Assessed | 22,075.09 | 100.00 |
Michigan Top Causes of Impairments
for Rivers and Streams
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | SEDIMENTATION/SILTATION | 2,456.70 |
| 2 | PRIORITY ORGANIC COMPOUND(S) | 1,815.50 |
| 3 | HABITAT ALTERATIONS | 1,508.40 |
| 4 | NUTRIENTS | 1,252.62 |
| 5 | FLOW ALTERATIONS | 1,166.40 |
| 6 | MERCURY | 744.50 |
| 7 | PATHOGENS | 733.62 |
| 8 | FILLING AND DRAINING | 504.00 |
| 9 | ORGANIC ENRICHMENT/LOW D.O. | 359.90 |
| 10 | NON-NATIVE AQUATIC PLANTS | 199.80 |
Michigan Top Probable Sources of Impairments
for Rivers and Streams
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | SOURCE UNKNOWN | 1,731.30 |
| 2 | AGRICULTURE | 1,654.00 |
| 3 | CHANNELIZATION | 1,492.00 |
| 4 | TOTAL RETENTION DOMESTIC SEWAGE LAGOONS | 671.00 |
| 5 | MAJOR INDUSTRIAL POINT SOURCES | 624.60 |
| 6 | ATMOSPHERIC DEPOSITON - TOXICS | 614.50 |
| 7 | CONTAMINATED SEDIMENTS | 610.20 |
| 8 | STREAMBANK MODIFICATIONS/DESTABLIZATION | 602.50 |
| 9 | MUNICIPAL POINT SOURCE DISCHARGES | 544.90 |
| 10 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 535.30 |
Michigan Assessed Waters
Individual Use Support for Lakes, Ponds and Reservoirs
Description of this table
| State Designated Use | Total Acres Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Recreation | 360,497.93 | 87.69 | .00 | 12.31 | |
|
Aquatic Life Harvesting | 360,554.93 | 32.62 | .00 | 67.38 | |
Michigan Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 78,773.43 | 21.85 |
| Threatened | .00 | .00 |
| Impaired | 281,781.50 | 78.15 |
| Total Acres Assessed | 360,554.93 | 100.00 |
Michigan Top Causes of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | MERCURY | 224,213.00 |
| 2 | PRIORITY ORGANIC COMPOUND(S) | 122,856.00 |
| 3 | PESTICIDES | 23,635.00 |
| 4 | ORGANIC ENRICHMENT/LOW D.O. | 11,585.00 |
| 5 | PHOSPHORUS, ELEMENTAL | 4,322.00 |
| 6 | PATHOGENS | 3,956.00 |
| 7 | COPPER | 2,659.00 |
| 8 | NUTRIENTS | 2,145.00 |
| 9 | PH | 926.00 |
| 10 | SEDIMENTATION/SILTATION | 790.00 |
Michigan Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | ATMOSPHERIC DEPOSITON - TOXICS | 217,381.00 |
| 2 | SOURCE UNKNOWN | 122,578.00 |
| 3 | MAJOR INDUSTRIAL POINT SOURCES | 20,387.00 |
| 4 | CONTAMINATED SEDIMENTS | 9,670.00 |
| 5 | MUNICIPAL POINT SOURCE DISCHARGES | 8,281.00 |
| 6 | AGRICULTURE | 4,111.00 |
| 7 | MINE TAILINGS | 2,659.00 |
| 8 | LAND DISPOSAL | 1,587.00 |
| 9 | POINT SOURCE(S) - UNSPECIFIED | 1,439.00 |
| 10 | ABOVE GROUND STORAGE TANK LEAKS (TANK FARMS) | 1,320.00 |
Michigan Assessed Waters
Individual Use Support for Wetlands
Description of this table
| State Designated Use | Total Acres Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Recreation | 690.00 | 1.45 | .00 | 98.55 | |
|
Aquatic Life Harvesting | 690.00 | 1.45 | .00 | 98.55 | |
Michigan Assessed Waters
Water Quality Attainment for Wetlands
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 10.00 | 1.45 |
| Threatened | .00 | .00 |
| Impaired | 680.00 | 98.55 |
| Total Acres Assessed | 690.00 | 100.00 |
Michigan Top Causes of Impairments
for Wetlands
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | PRIORITY ORGANIC COMPOUND(S) | 680.00 |
| 2 | OTHER METALS | 10.00 |
Michigan Top Probable Sources of Impairments
for Wetlands
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | MAJOR INDUSTRIAL POINT SOURCES | 680.00 |
| 2 | INDUSTRIAL POINT SOURCE DISCHARGE | 10.00 |
| 3 | CONTAMINATED SEDIMENTS | 10.00 |
| 4 | MILL TAILINGS | 10.00 |
Michigan Assessed Waters
Individual Use Support for Great Lakes Shoreline
Description of this table
| State Designated Use | Total Miles Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Recreation | 22.30 | 64.13 | .00 | 35.87 | |
|
Aquatic Life Harvesting | 23.80 | 57.98 | .00 | 42.02 | |
Michigan Assessed Waters
Water Quality Attainment for Great Lakes Shoreline
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 13.80 | 57.98 |
| Threatened | .00 | .00 |
| Impaired | 10.00 | 42.02 |
| Total Miles Assessed | 23.80 | 100.00 |
Michigan Top Causes of Impairments
for Great Lakes Shoreline
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | PATHOGENS | 8.00 |
| 2 | PH | 1.50 |
| 3 | OTHER METALS | 1.50 |
Michigan Top Probable Sources of Impairments
for Great Lakes Shoreline
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | COMBINED SEWER OVERFLOWS | 4.00 |
| 2 | SOURCE UNKNOWN | 4.00 |
| 3 | RCRA HAZARDOUS WASTE SITES | 1.50 |
Michigan Assessed Waters
Individual Use Support for Great Lakes Open Water
Description of this table
| State Designated Use | Total Square Miles Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Recreation | 49,461.66 | 100.00 | .00 | .00 | |
|
Aquatic Life Harvesting | 49,872.66 | .83 | .00 | 99.17 | |
Michigan Assessed Waters
Water Quality Attainment for Great Lakes Open Water
Description of this table
| Attainment Status | Square Miles | Percent of Assessed |
| Good | 414.10 | .83 |
| Threatened | .00 | .00 |
| Impaired | 49,458.56 | 99.17 |
| Total Square Miles Assessed | 49,872.66 | 100.00 |
Michigan Top Causes of Impairments
for Great Lakes Open Water
Description of this table
| # | State Cause Name | Total Square Miles Impaired |
|---|---|---|
| 1 | PRIORITY ORGANIC COMPOUND(S) | 49,413.66 |
| 2 | MERCURY | 38,885.60 |
| 3 | PESTICIDES | 37,139.85 |
| 4 | OTHER METALS | 45.00 |
Michigan Top Probable Sources of Impairments
for Great Lakes Open Water
Description of this table
| # | State Source Name | Total Square Miles Impaired by Source |
|---|---|---|
| 1 | ATMOSPHERIC DEPOSITON - TOXICS | 49,243.56 |
| 2 | CONTAMINATED SEDIMENTS | 40,127.84 |
| 3 | MAJOR INDUSTRIAL POINT SOURCES | 39,154.85 |
| 4 | AGRICULTURE | 37,139.85 |
| 5 | INDUSTRIAL POINT SOURCE DISCHARGE | 1,143.00 |
| 6 | SOURCE UNKNOWN | 145.75 |
| 7 | TOTAL RETENTION DOMESTIC SEWAGE LAGOONS | 45.00 |
| 8 | RCRA HAZARDOUS WASTE SITES | .10 |
Michigan
Causes of Impairment
Description of this table| State Cause Name | Size of Assessed Waters with Listed Causes of Impairment | |||||||
|---|---|---|---|---|---|---|---|---|
| Rivers, Streams, Creeks (Miles) | Lakes, Ponds, Reservoir (Acres) | Bays, Estuaries (Square Miles) | Coastal Shorelines (Miles) | Oceans, Near Coastal Waters (Square Miles) | Wetlands (Acres) | Great Lakes Shoreline (Miles) | Great Lakes Open Waters (Squar Miles) | |
| CAUSE UNKNOWN | 163.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL SUSPENDED SOLIDS (TSS) | 188.40 | 790.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NONPRIORITY ORGANIC COMPOUND(S) | 14.50 | 500.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TDS | 44.75 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PATHOGENS | 733.62 | 3,956.00 | .00 | .00 | .00 | .00 | 8.00 | .00 |
| OTHER INORGANICS | 59.10 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UNKNOWN TOXICITY | 12.90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SILTATION (SILTS) | 105.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AMMONIA (UNIONIZED) - TOXIN | 34.70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHROMIUM (TOTAL) | 3.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TEMPERATURE, WATER | 58.10 | 327.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HABITAT ALTERATIONS | 1,508.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FILLING AND DRAINING | 504.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ODOR THRESHOLD NUMBER | .00 | 500.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PRIORITY ORGANIC COMPOUND(S) | 1,815.50 | 122,856.00 | .00 | .00 | .00 | 680.00 | .00 | 49,413.66 |
| MERCURY | 744.50 | 224,213.00 | .00 | .00 | .00 | .00 | .00 | 38,885.60 |
| FLOW ALTERATIONS | 1,166.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHLORINE | 40.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OTHER METALS | 97.70 | 500.00 | .00 | .00 | .00 | 10.00 | 1.50 | 45.00 |
| OIL AND GREASE | 39.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ORGANIC ENRICHMENT/LOW D.O. | 359.90 | 11,585.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NUTRIENTS | 1,252.62 | 2,145.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BACTERIAL SLIMES | 7.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PHOSPHORUS, ELEMENTAL | 11.00 | 4,322.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SEDIMENTATION/SILTATION | 2,456.70 | 790.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NON-NATIVE AQUATIC PLANTS | 199.80 | 790.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PH | 4.00 | 926.00 | .00 | .00 | .00 | .00 | 1.50 | .00 |
| COPPER | 42.25 | 2,659.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOW D.O. | 99.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SALINITY | 21.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PESTICIDES | 34.00 | 23,635.00 | .00 | .00 | .00 | .00 | .00 | 37,139.85 |
Michigan
Probable Sources Contributing to Impairment
Description of this table| State Source Name | Size of Assessed Waters with Probable Sources of Impairment | |||||||
|---|---|---|---|---|---|---|---|---|
| Rivers, Streams, Creeks (Miles) | Lakes, Ponds, Reservoir (Acres) | Bays, Estuaries (Square Miles) | Coastal Shorelines (Miles) | Oceans, Near Coastal Waters (Square Miles) | Wetlands (Acres) | Great Lakes Shoreline (Miles) | Great Lakes Open Waters (Square Miles) | |
| LAND DISPOSAL | 49.00 | 1,587.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OTHER URBAN RUNOFF | 97.60 | 790.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RESOURCE EXTRACTION | 18.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CONTAMINATED SEDIMENTS | 610.20 | 9,670.00 | .00 | .00 | .00 | 10.00 | .00 | 40,127.84 |
| EROSION AND SEDIMENTATION | 71.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| POINT SOURCES - UNSPECIFIED | 3.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NON-IRRIGATED CROP PRODUCTION | 434.52 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) | 24.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ILLEGAL DUMPS OR OTHER INAPPROPRIATE WASTE DISPOSAL | .00 | 2.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SANITARY SEWER OVERFLOWS (COLLECTION SYSTEM FAILURES) | 29.00 | 186.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RANGELAND (UNMANAGED PASTURE) GRAZING | 44.27 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL RETENTION DOMESTIC SEWAGE LAGOONS | 671.00 | .00 | .00 | .00 | .00 | .00 | .00 | 45.00 |
| MUNICIPAL PRETREATMENT (INDIRECT DISCHARGERS) | 3.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LAND APPLICATION OF WASTEWATER (NON-AGRICULTURAL) | 5.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 121.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AQUACULTURE | 15.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CONSTRUCTION | 113.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| GOLF COURSES | 4.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SILVICULTURE | 68.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOSS OF RIPARIAN HABITAT | 190.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| IRRIGATED CROP PRODUCTION | 95.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ATMOSPHERIC DEPOSITON - TOXICS | 614.50 | 217,381.00 | .00 | .00 | .00 | .00 | .00 | 49,243.56 |
| NONPOINT SOURCE(S) - UNSPECIFIED | 22.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ILLICIT CONNECTIONS/HOOK-UPS TO STORM SEWERS | 89.50 | 160.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SURFACE MINING | 7.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SUBSURFACE MINING | 5.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ANIMAL FEEDING OPERATIONS (NPS) | 56.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INTENSIVE ANIMAL FEEDING OPERATIONS | 91.82 | 27.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CROP PRODUCTION (CROP LAND OR DRY LAND) | 60.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 535.30 | 1,293.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| STREAMBANK MODIFICATIONS/DESTABLIZATION | 602.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RECREATION AND TOURISM ACTIVITIES (OTHER THAN BOATING) | 31.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HIGHWAYS, ROADS, BRIDGES, INFRASTRUCTURE (NEW CONSTRUCTION) | 15.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LANDFILLS | 10.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AGRICULTURE | 1,654.00 | 4,111.00 | .00 | .00 | .00 | .00 | .00 | 37,139.85 |
| MINE TAILINGS | 40.25 | 2,659.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHANNELIZATION | 1,492.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FLOW ALTERATIONS FROM WATER DIVERSIONS | 119.70 | 790.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PASTURE GRAZING - RIPARIAN AND/OR UPLAND | 390.50 | 27.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| WATER WITHDRAWAL | 10.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SEDIMENT RESUSPENSION | 135.15 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| COMBINED SEWER OVERFLOWS | 369.42 | 930.00 | .00 | .00 | .00 | .00 | 4.00 | .00 |
| INDUSTRIAL LAND TREATMENT | 1.75 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PASTURE GRAZING - RIPARIAN | 8.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DRAINAGE/FILLING/LOSS OF WETLANDS | 46.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL POINT SOURCE DISCHARGES | 544.90 | 8,281.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LIVESTOCK (GRAZING OR FEEDING OPERATIONS) | 32.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ABOVE GROUND STORAGE TANK LEAKS (TANK FARMS) | 18.00 | 1,320.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HIGHWAY/ROAD/BRIDGE RUNOFF (NON-CONSTRUCTION RELATED) | 6.00 | 790.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PETROLEUM/NATURAL GAS PRODUCTION ACTIVITIES (PERMITTED) | 4.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) | 2.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MILL TAILINGS | 9.50 | .00 | .00 | .00 | .00 | 10.00 | .00 | .00 |
| PLACER MINING | 52.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SPILLS FROM TRUCKS OR TRAINS | 2.10 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MAJOR INDUSTRIAL POINT SOURCES | 624.60 | 20,387.00 | .00 | .00 | .00 | 680.00 | .00 | 39,154.85 |
| DAM CONSTRUCTION (OTHER THAN UPSTREAM FLOOD CONTROL PROJECTS) | 15.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCE UNKNOWN | 1,731.30 | 122,578.00 | .00 | .00 | .00 | .00 | 4.00 | 145.75 |
| HYDROMODIFICATION | 243.10 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| GROUNDWATER LOADINGS | 15.10 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INDUSTRIAL PERMITTED | 54.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NON-INDUSTRIAL PERMITTED | 21.20 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PASTURE GRAZING - UPLAND | 21.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RCRA HAZARDOUS WASTE SITES | .00 | .00 | .00 | .00 | .00 | .00 | 1.50 | .10 |
| SPECIALITY CROP PRODUCTION | 19.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| POINT SOURCE(S) - UNSPECIFIED | 98.40 | 1,439.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INDUSTRIAL POINT SOURCE DISCHARGE | 15.50 | 827.00 | .00 | .00 | .00 | 10.00 | .00 | 1,143.00 |
| DREDGING (E.G., FOR NAVIGATION CHANNELS) | 326.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HIGHWAY/ROAD/BRIDGE/CULVERT CONSTRUCTION | 197.20 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
