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Assessment Data for the State of California Year 2002
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Impaired Water Information
Other Water Assessment Information
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| NOTE: For some waterbodies, California applies use support to only portions of the waterbody. For those water bodies, EPA's methodologies extrapolate the use support to the entire waterbody. Because of this, the use support summary numbers displayed on this web-site may not match the data presented in California's 305(b) report. |
State of California websites: | State 305(b) Water Quality Assessment Report(s) |
| State Water Quality Program |
Search for a Waterbody within California
Total Assessed Waters for the State of California
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 | 32,705.26 | 1,039,993.69 | 904.44 | 766.04 | 489.83 | 197,442.63 | .00 | .00 |
| Estimated Total Water Size in CA | 211,513.00 | 2,086,230.00 | 2,139.00 | Unavailable | Unavailable | 357,064.00 | Unavailable | Unavailable |
| Percent of Waters Assessed | 15.46 | 49.85 | 42.28 | Unavailable | Unavailable | 55.30 | Unavailable | Unavailable |
Assessed Waters of California 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) | |
| 15020102 | 230.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ALISAL-ELKHORN SLOUGHS | 35.12 | .00 | 3.82 | .00 | .00 | .00 | .00 | .00 |
| ALISO-SAN ONOFRE | 51.14 | 8.42 | .20 | 9.99 | 2.40 | .00 | .00 | .00 |
| ANTELOPE-FREMONT VALLEYS | 282.63 | 100.34 | .00 | .00 | .00 | .00 | .00 | .00 |
| BIG-NAVARRO-GARCIA | 2,713.18 | .00 | .07 | .00 | .97 | .00 | .00 | .00 |
| BODEGA BAY | 100.35 | .00 | 1.58 | .00 | .31 | .00 | .00 | .00 |
| BUTTE | 264.93 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CALLEGUAS | 121.90 | 20.14 | 1.15 | 3.79 | .00 | .00 | .00 | .00 |
| CARMEL | 42.36 | .00 | .30 | 34.87 | .00 | .00 | .00 | .00 |
| CENTRAL COASTAL | 86.32 | 59.00 | 3.15 | 198.00 | .00 | .00 | .00 | .00 |
| COTTONWOOD HEADWATERS | .00 | 89.38 | .00 | .00 | .00 | .00 | .00 | .00 |
| COTTONWOOD-TIJUANA | 66.46 | 103.57 | 2.06 | 3.00 | .00 | .00 | .00 | .00 |
| COYOTE | 194.50 | 2,399.98 | 33.86 | .00 | .00 | 12,000.00 | .00 | .00 |
| CROWLEY LAKE | 299.59 | 6,607.66 | .00 | .00 | .00 | 5.16 | .00 | .00 |
| CUYAMA | 5.80 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DEATH VALLEY-LOWER AMARGOSA | 229.78 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| EAST BRANCH NORTH FORK FEATHER | 146.51 | 160.50 | .00 | .00 | .00 | .00 | .00 | .00 |
| EAST WALKER | 169.67 | 3,567.26 | .00 | .00 | .00 | 3.00 | .00 | .00 |
| ESTRELLA | 8.70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| EUREKA-SALINE VALLEYS | 10.80 | 1,189.88 | .00 | .00 | .00 | 320.00 | .00 | .00 |
| FISH LAKE-SODA SPRING VALLEYS | 5.66 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| GOOSE LAKE | .00 | 63,605.20 | .00 | .00 | .00 | .00 | .00 | .00 |
| GUALALA-SALMON | 454.93 | .00 | .00 | .00 | .13 | .00 | .00 | .00 |
| HAVASU-MOHAVE LAKES | 4.36 | 25,135.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HONCUT HEADWATERS | .00 | 43.89 | .00 | .00 | .00 | .00 | .00 | .00 |
| HONEY-EAGLE LAKES | 265.11 | 84,205.81 | .00 | .00 | .00 | 62,672.37 | .00 | .00 |
| IMPERIAL RESERVOIR | 143.40 | 354.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INDIAN WELLS-SEARLES VALLEYS | 180.83 | 30,211.50 | .00 | .00 | .00 | 1.00 | .00 | .00 |
| LAKE TAHOE | 123.26 | 87,130.38 | .00 | .00 | .00 | 657.76 | .00 | .00 |
| LOS ANGELES | 215.88 | 162.94 | 9.00 | .00 | .00 | .00 | .00 | .00 |
| LOST | 1,212.47 | 26,998.10 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER AMERICAN | 104.69 | 484.99 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER BUTTE | 94.19 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER CALAVERAS-MORMON SLOUGH | 6.68 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER COLORADO | 30.00 | 82.60 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER COSUMNES-LOWER MOKELUMNE | 33.65 | 7,389.16 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER COTTONWOOD | 21.56 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER EEL | 1,011.90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER FEATHER | 76.48 | 4,422.14 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER PIT | 193.38 | 2,214.33 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER SACRAMENTO | 260.55 | 111.19 | 67.25 | .00 | .00 | .00 | .00 | .00 |
| LOWER YUBA | 10.37 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MAD-REDWOOD | 1,786.04 | 1,073.70 | 29.48 | .00 | 63.30 | .00 | .00 | .00 |
| MATTOLE | .00 | .00 | .00 | .00 | 31.25 | .00 | .00 | .00 |
| MCCLOUD | 55.67 | 565.77 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE FORK EEL | 1,542.95 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE FORK FEATHER | 62.06 | 22,844.83 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE KERN-UPPER TEHACHAPI- GRAPEVINE | 49.15 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE SAN JOAQUIN-LOWER CHOWCHILLA | 282.87 | 2,254.17 | .00 | .00 | .00 | 11,007.27 | .00 | .00 |
| MIDDLE SAN JOAQUIN-LOWER MERCED-LOWER STANISLAUS | 360.04 | .00 | 31.46 | .00 | .00 | .00 | .00 | .00 |
| MILL-BIG CHICO | 55.08 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MOJAVE | 265.29 | 1,866.60 | .00 | .00 | .00 | .00 | .00 | .00 |
| MONO LAKE | 55.40 | 41,530.16 | .00 | .00 | .00 | 1.00 | .00 | .00 |
| NEWPORT BAY | 27.44 | .00 | 2.24 | 4.62 | .76 | 494.28 | .00 | .00 |
| NORTH FORK AMERICAN | 196.17 | 2,790.68 | .00 | .00 | .00 | .00 | .00 | .00 |
| NORTH FORK FEATHER | 48.62 | 47,631.30 | .00 | .00 | .00 | .00 | .00 | .00 |
| OWENS LAKE | 387.90 | 71,440.11 | .00 | .00 | .00 | 2.00 | .00 | .00 |
| PAJARO | 240.81 | 626.48 | .02 | .00 | .00 | 120.00 | .00 | .00 |
| PANOCHE-SAN LUIS RESERVOIR | 31.83 | 13,688.81 | .00 | .00 | .00 | .00 | .00 | .00 |
| PIUTE WASH | 1.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RUSSIAN | 3,261.08 | 4,081.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| SACRAMENTO HEADWATERS | 40.68 | 443.73 | .00 | .00 | .00 | .00 | .00 | .00 |
| SACRAMENTO-LOWER COW-LOWER CLEAR | 127.73 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SACRAMENTO-LOWER THOMES | 326.11 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SACRAMENTO-STONE CORRAL | 174.87 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SACRAMENTO-UPPER CLEAR | 65.57 | 232.49 | .00 | .00 | .00 | .00 | .00 | .00 |
| SALINAS | 277.82 | 11,596.74 | .00 | 106.00 | .00 | .00 | .00 | .00 |
| SALMON | 902.29 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SALTON SEA | 1,772.40 | 233,556.22 | .00 | .00 | .00 | .00 | .00 | .00 |
| SAN ANTONIO | 14.31 | .00 | .00 | 56.00 | .00 | .00 | .00 | .00 |
| SAN DIEGO | 239.62 | 3,134.25 | 24.81 | 18.65 | .95 | .00 | .00 | .00 |
| SAN FRANCISCO BAY | 179.81 | 6,901.75 | 270.23 | .00 | .00 | .00 | .00 | .00 |
| SAN FRANCISCO COASTAL SOUTH | 67.77 | 438.42 | .00 | 4.66 | .00 | .00 | .00 | .00 |
| SAN GABRIEL | 132.32 | 806.82 | 9.49 | .00 | .00 | 46.93 | .00 | .00 |
| SAN JACINTO | 83.81 | 5,227.44 | .00 | .00 | .00 | 4,700.00 | .00 | .00 |
| SAN JOAQUIN DELTA | 211.74 | 543.82 | 68.74 | .00 | .00 | .00 | .00 | .00 |
| SAN LORENZO-SOQUEL | 184.54 | 23.49 | .16 | 1.00 | .00 | 34.00 | .00 | .00 |
| SAN LUIS REY-ESCONDIDO | 80.12 | 76.60 | 1.31 | 3.70 | .00 | .00 | .00 | .00 |
| SAN PABLO BAY | 269.81 | 2,832.02 | 221.69 | .22 | .00 | .00 | .00 | .00 |
| SAN PEDRO CHANNEL ISLANDS | .00 | .00 | .00 | .67 | 369.15 | .00 | .00 | .00 |
| SANTA ANA | 526.41 | 7,565.73 | .02 | 5.79 | .00 | 7,010.50 | .00 | .00 |
| SANTA BARBARA CHANNEL ISLANDS | .00 | .00 | .00 | 158.00 | .00 | .00 | .00 | .00 |
| SANTA BARBARA COASTAL | 27.04 | .00 | .72 | 10.19 | .00 | .00 | .00 | .00 |
| SANTA CLARA | 453.55 | 7,300.18 | .20 | .00 | .00 | .00 | .00 | .00 |
| SANTA MARGARITA | 73.20 | .00 | .13 | .00 | .00 | .00 | .00 | .00 |
| SANTA MARIA | 89.91 | 55.57 | .01 | .00 | .00 | .00 | .00 | .00 |
| SANTA MONICA BAY | 129.06 | 356.93 | 242.33 | 57.91 | .00 | 289.20 | .00 | .00 |
| SANTA YNEZ | 46.70 | 3,343.00 | .11 | 35.06 | .00 | .00 | .00 | .00 |
| SCOTT | 630.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SEAL BEACH | .79 | .00 | 2.91 | 15.39 | .00 | .00 | .00 | .00 |
| SMITH | .00 | .00 | .60 | .00 | .00 | .00 | .00 | .00 |
| SMOKE CREEK DESERT | 15.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOUTH FORK AMERICAN | 71.92 | 3,096.63 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOUTH FORK KERN | .00 | 7,709.59 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOUTHERN MOJAVE | 33.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SUISUN BAY | 77.66 | 1,013.08 | 117.02 | .00 | .00 | 66,339.30 | .00 | .00 |
| SURPRISE VALLEY | 40.10 | 47,991.67 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOMALES-DRAKE BAYS | 46.59 | 2,158.00 | 18.29 | 43.00 | .25 | 1,920.00 | .00 | .00 |
| TRINITY | 3,118.98 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TRUCKEE | 126.06 | 5,935.32 | .00 | .00 | .00 | 629.22 | .00 | .00 |
| TULARE-BUENA VISTA LAKES | 298.05 | .00 | .00 | .00 | .00 | 3,045.38 | .00 | .00 |
| UPPER BEAR | 56.35 | 3,081.06 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER BUTTE | 104.12 | 150.76 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER CACHE | 130.69 | 44,053.46 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER CARSON | 183.83 | 316.87 | .00 | .00 | .00 | 824.62 | .00 | .00 |
| UPPER CHOWCHILLA-UPPER FRESNO | 84.10 | 1,668.94 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER COON-UPPER AUBURN | .00 | 67.47 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER COSUMNES | 11.78 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER COW-BATTLE | 42.28 | 57.41 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER DEER-UPPER WHITE | 58.20 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER EEL | 1,745.42 | 1,973.45 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER ELDER-UPPER THOMES | 129.43 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER KAWEAH | 3.61 | 1,701.75 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER KERN | 38.02 | 7,709.59 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER KING | 77.28 | 6,931.01 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER KLAMATH | 2,065.39 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER LOS GATOS-AVENAL | 75.46 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER MERCED | 49.59 | 5,908.39 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER MOKELUMNE | 10.81 | 3,246.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER PIT | 734.58 | 8,476.76 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER PUTAH | 70.06 | 19,091.16 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER SAN JOAQUIN | 6.24 | 6,869.18 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER STANISLAUS | 62.23 | 2,858.10 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER STONY | 41.85 | 7,615.37 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER TULE | 78.49 | 2,485.59 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER TUOLUMNE | 119.66 | 14,685.98 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER YUBA | 168.90 | 8,819.50 | .00 | .00 | .00 | .00 | .00 | .00 |
| VENTURA | 102.04 | 2,822.89 | .36 | 1.33 | .00 | .00 | .00 | .00 |
| WEST WALKER | 98.19 | 1,034.98 | .00 | .00 | .00 | 4.01 | .00 | .00 |
| Name Not Reported | 57.65 | 1,887.00 | 1.76 | .00 | 20.37 | 28,361.00 | .00 | .00 |
California 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 |
||||||
 |
Fish, Shellfish, and Wildlife Protection and Propagation | 32,676.06 | 2.82 | 4.52 | 92.66 | |
 |
Recreation | 16,896.24 | 8.40 | 8.99 | 82.61 | |
 |
Public Water Supply | 15,557.76 | 16.19 | 6.89 | 76.92 | |
 |
Aquatic Life Harvesting | 13,009.57 | 7.23 | 4.96 | 87.82 | |
 |
Other | 14,579.99 | 5.81 | 1.76 | 92.43 | |
 |
Exceptional Recreational or Ecological Significance | 13,633.86 | 3.12 | 4.04 | 92.84 | |
 |
Agricultural | 11,865.27 | 36.52 | 11.49 | 51.99 | |
 |
Industrial | 8,645.36 | 5.58 | .64 | 93.78 | |
California Assessed Waters
Water Quality Attainment for Rivers and Streams
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 910.21 | 2.78 |
| Threatened | 1,507.16 | 4.61 |
| Impaired | 30,287.89 | 92.61 |
| Total Miles Assessed | 32,705.26 | 100.00 |
California Top Causes of Impairments
for Rivers and Streams
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | SEDIMENTATION/SILTATION | 18,849.40 |
| 2 | TEMPERATURE, WATER | 17,177.53 |
| 3 | NUTRIENTS | 12,176.16 |
| 4 | HABITAT ALTERATIONS | 11,440.07 |
| 5 | FLOW ALTERATION | 9,662.84 |
| 6 | ORGANIC ENRICHMENT/LOW DO | 6,955.36 |
| 7 | PATHOGENS/PATH.INDICATORS | 5,629.54 |
| 8 | DEBRIS | 5,209.11 |
| 9 | TOTAL SUSPENDED SOLIDS (TSS) | 3,626.06 |
| 10 | PESTICIDES | 3,579.40 |
California Top Probable Sources of Impairments
for Rivers and Streams
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | LOSS OF RIPARIAN HABITAT | 19,448.71 |
| 2 | HABITAT MODIFICATION | 18,103.18 |
| 3 | NONPOINT SOURCE | 17,315.12 |
| 4 | HYDROMODIFICATION | 16,682.09 |
| 5 | SILVICULTURE | 15,252.56 |
| 6 | AGRICULTURE | 15,065.62 |
| 7 | STREAMBANK MODIFICATIONS/DESTABLIZATION | 14,461.55 |
| 8 | EROSION/SILTATION | 12,519.99 |
| 9 | FLOW ALTERATIONS FROM WATER DIVERSIONS | 12,472.09 |
| 10 | NATURAL SOURCES | 11,469.62 |
California 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 |
||||||
|
Fish, Shellfish, and Wildlife Protection and Propagation | 1,039,693.69 | 5.31 | 1.80 | 92.89 | |
|
Recreation | 890,764.89 | 10.18 | 8.74 | 81.08 | |
|
Public Water Supply | 779,700.49 | 14.61 | 3.29 | 82.10 | |
|
Aquatic Life Harvesting | 705,692.80 | 9.08 | 7.91 | 83.01 | |
|
Industrial | 769,785.16 | 39.28 | .39 | 60.33 | |
|
Exceptional Recreational or Ecological Significance | 767,060.25 | 9.12 | 3.16 | 87.73 | |
|
Other | 690,152.36 | 4.82 | 1.39 | 93.79 | |
|
Agricultural | 469,063.03 | 35.22 | 8.15 | 56.63 | |
California Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 55,191.88 | 5.31 |
| Threatened | 18,947.99 | 1.82 |
| Impaired | 965,853.82 | 92.87 |
| Total Acres Assessed | 1,039,993.69 | 100.00 |
California Top Causes of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | METALS | 589,632.40 |
| 2 | NUTRIENTS | 473,440.24 |
| 3 | SALINITY | 436,252.04 |
| 4 | FLOW ALTERATION | 337,375.18 |
| 5 | SEDIMENTATION/SILTATION | 279,588.06 |
| 6 | PATHOGENS/PATH.INDICATORS | 272,119.52 |
| 7 | SELENIUM | 233,340.00 |
| 8 | MERCURY | 205,847.26 |
| 9 | ARSENIC | 180,223.24 |
| 10 | PH | 158,867.12 |
California Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | SOURCE UNKNOWN | 598,456.06 |
| 2 | NATURAL SOURCES | 537,145.94 |
| 3 | AGRICULTURE | 396,142.56 |
| 4 | HYDROMODIFICATION | 302,373.33 |
| 5 | AGRICULTURE-SUBSURFACE DRAINAGE | 233,547.19 |
| 6 | IRRIGATED CROP PRODUCTION | 233,454.57 |
| 7 | OUT-OF-STATE SOURCE | 233,340.00 |
| 8 | NONPOINT SOURCE | 215,958.54 |
| 9 | FLOW ALTERATIONS FROM WATER DIVERSIONS | 191,285.26 |
| 10 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 158,997.11 |
California Assessed Waters
Individual Use Support for Bays and Estuaries
Description of this table
| State Designated Use | Total Square Miles Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Fish, Shellfish, and Wildlife Protection and Propagation | 904.44 | .56 | 1.88 | 97.56 | |
|
Recreation | 838.39 | 80.79 | .15 | 19.06 | |
|
Public Water Supply | 166.18 | .00 | .00 | 100.00 | |
|
Aquatic Life Harvesting | 891.92 | .69 | 1.83 | 97.49 | |
|
Exceptional Recreational or Ecological Significance | 561.56 | .79 | .00 | 99.21 | |
|
Industrial | 541.37 | 72.67 | .02 | 27.31 | |
|
Other | 254.24 | 15.28 | .00 | 84.72 | |
|
Agricultural | 53.04 | .00 | .00 | 100.00 | |
California Assessed Waters
Water Quality Attainment for Bays and Estuaries
Description of this table
| Attainment Status | Square Miles | Percent of Assessed |
| Good | 5.04 | .56 |
| Threatened | 17.01 | 1.88 |
| Impaired | 882.39 | 97.56 |
| Total Square Miles Assessed | 904.44 | 100.00 |
California Top Causes of Impairments
for Bays and Estuaries
Description of this table
| # | State Cause Name | Total Square Miles Impaired |
|---|---|---|
| 1 | PRIORITY ORGANICS | 853.64 |
| 2 | PESTICIDES | 841.24 |
| 3 | METALS | 745.10 |
| 4 | NON-NATIVE FISH/SHELLFISH/ZOOPLANKTON SPECIES | 427.29 |
| 5 | MERCURY | 383.27 |
| 6 | NICKEL | 341.44 |
| 7 | UNKNOWN TOXICITY | 309.98 |
| 8 | FLOW ALTERATION | 298.61 |
| 9 | SELENIUM | 292.81 |
| 10 | HABITAT ALTERATIONS | 236.61 |
California Top Probable Sources of Impairments
for Bays and Estuaries
Description of this table
| # | State Source Name | Total Square Miles Impaired by Source |
|---|---|---|
| 1 | INDUSTRIAL POINT SOURCE DISCHARGE | 789.15 |
| 2 | NATURAL SOURCES | 730.89 |
| 3 | MUNICIPAL POINT SOURCE DISCHARGES | 730.34 |
| 4 | ATMOSPHERIC DEPOSITON - TOXICS | 726.52 |
| 5 | HYDROMODIFICATION | 606.85 |
| 6 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 589.74 |
| 7 | RESOURCE EXTRACTION | 581.51 |
| 8 | AGRICULTURE | 572.71 |
| 9 | SOURCE UNKNOWN | 560.17 |
| 10 | NONPOINT SOURCE | 538.80 |
California Assessed Waters
Individual Use Support for Coastal Shorelines
Description of this table
| State Designated Use | Total Miles Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Fish, Shellfish, and Wildlife Protection and Propagation | 766.04 | 79.09 | .00 | 20.91 | |
|
Recreation | 686.04 | 76.66 | .00 | 23.34 | |
|
Public Water Supply | 74.05 | .00 | .00 | 100.00 | |
|
Aquatic Life Harvesting | 638.06 | 82.86 | .00 | 17.14 | |
|
Other | 592.67 | 84.81 | .00 | 15.19 | |
|
Exceptional Recreational or Ecological Significance | 501.03 | 85.74 | .00 | 14.26 | |
|
Industrial | 277.74 | 77.61 | .00 | 22.39 | |
|
Agricultural | 49.96 | .00 | .00 | 100.00 | |
California Assessed Waters
Water Quality Attainment for Coastal Shorelines
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 605.84 | 79.09 |
| Threatened | .00 | .00 |
| Impaired | 160.20 | 20.91 |
| Total Miles Assessed | 766.04 | 100.00 |
California Top Causes of Impairments
for Coastal Shorelines
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | METALS | 155.52 |
| 2 | PATHOGENS/PATH.INDICATORS | 119.10 |
| 3 | CADMIUM | 83.87 |
| 4 | PESTICIDES | 63.01 |
| 5 | MERCURY | 41.00 |
| 6 | ARSENIC | 37.00 |
| 7 | DEBRIS | 20.01 |
| 8 | CHROMIUM | 14.00 |
| 9 | TITANIUM | 14.00 |
| 10 | ZINC | 14.00 |
California Top Probable Sources of Impairments
for Coastal Shorelines
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | NATURAL SOURCES | 100.24 |
| 2 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 85.60 |
| 3 | SPILLS FROM TRUCKS OR TRAINS | 57.91 |
| 4 | NONPOINT SOURCE | 57.18 |
| 5 | POINT SOURCE | 34.49 |
| 6 | SEPTAGE DISPOSAL | 26.18 |
| 7 | BOAT DISCHARGES/VESSEL WASTES | 20.42 |
| 8 | RECREATIONAL AND TOURISM ACTIVITIES (NON-BOATING) | 20.01 |
| 9 | ATMOSPHERIC DEPOSITON - TOXICS | 20.01 |
| 10 | AGRICULTURE | 16.44 |
California Assessed Waters
Individual Use Support for Oceans, and Near Coastal
Description of this table
| State Designated Use | Total Square Miles Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Fish, Shellfish, and Wildlife Protection and Propagation | 489.83 | 99.87 | .00 | .13 | |
|
Recreation | 486.41 | 100.00 | .00 | .00 | |
|
Public Water Supply | 154.46 | 99.59 | .00 | .41 | |
|
Aquatic Life Harvesting | 486.41 | 100.00 | .00 | .00 | |
|
Other | 100.07 | 99.37 | .00 | .63 | |
|
Exceptional Recreational or Ecological Significance | 99.44 | 100.00 | .00 | .00 | |
|
Industrial | 3.48 | 100.00 | .00 | .00 | |
California Assessed Waters
Water Quality Attainment for Oceans, and Near Coastal
Description of this table
| Attainment Status | Square Miles | Percent of Assessed |
| Good | 489.20 | 99.87 |
| Threatened | .00 | .00 |
| Impaired | .63 | .13 |
| Total Square Miles Assessed | 489.83 | 100.00 |
California Top Causes of Impairments
for Oceans, and Near Coastal
No Causes for Impairment Reported.
California Top Probable Sources of Impairments
for Oceans, and Near Coastal
No Probable Sources Reported.
California 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 |
||||||
|
Fish, Shellfish, and Wildlife Protection and Propagation | 197,442.63 | 5.95 | .41 | 93.65 | |
|
Recreation | 87,377.70 | 13.43 | 76.71 | 9.86 | |
|
Public Water Supply | 66,703.14 | .26 | .29 | 99.44 | |
|
Aquatic Life Harvesting | 63,546.43 | .27 | .00 | 99.73 | |
|
Exceptional Recreational or Ecological Significance | 141,815.36 | 8.23 | .35 | 91.42 | |
|
Other | 66,403.43 | .00 | .00 | 100.00 | |
|
Industrial | 63,358.05 | .00 | .00 | 100.00 | |
|
Agricultural | 11,306.51 | .00 | 1.72 | 98.28 | |
California Assessed Waters
Water Quality Attainment for Wetlands
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 11,739.50 | 5.95 |
| Threatened | 805.48 | .41 |
| Impaired | 184,897.65 | 93.65 |
| Total Acres Assessed | 197,442.63 | 100.00 |
California Top Causes of Impairments
for Wetlands
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | SALINITY | 176,439.40 |
| 2 | METALS | 142,023.44 |
| 3 | HABITAT ALTERATIONS | 105,677.18 |
| 4 | NUTRIENTS | 66,824.34 |
| 5 | ORGANIC ENRICHMENT/LOW DO | 66,339.30 |
| 6 | ARSENIC | 62,620.49 |
| 7 | FLOW ALTERATION | 27,844.19 |
| 8 | SELENIUM | 23,007.27 |
| 9 | UNKNOWN TOXICITY | 12,659.01 |
| 10 | PATHOGENS/PATH.INDICATORS | 12,057.50 |
California Top Probable Sources of Impairments
for Wetlands
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | AGRICULTURE | 170,689.63 |
| 2 | HYDROMODIFICATION | 94,185.49 |
| 3 | FLOW ALTERATIONS FROM WATER DIVERSIONS | 93,670.01 |
| 4 | NATURAL SOURCES | 90,510.95 |
| 5 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 79,171.43 |
| 6 | SOURCE UNKNOWN | 78,534.48 |
| 7 | MUNICIPAL POINT SOURCE DISCHARGES | 78,339.30 |
| 8 | OTHER | 65,636.78 |
| 9 | NONPOINT SOURCE | 62,901.40 |
| 10 | GEOTHERMAL DEVELOPMENT | 62,590.40 |
California
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) | |
| ZINC | 212.50 | 388.55 | 1.52 | 14.00 | .00 | .00 | .00 | .00 |
| ALGAE | 139.75 | 112,244.53 | .00 | .00 | .00 | .00 | .00 | .00 |
| ARSENIC | 156.77 | 180,223.24 | .63 | 37.00 | .00 | 62,620.49 | .00 | .00 |
| ALUMINUM | 53.38 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHROMIUM | 74.37 | .00 | .17 | 14.00 | .00 | .00 | .00 | .00 |
| THALLIUM | .00 | .00 | 2.06 | .00 | .00 | .00 | .00 | .00 |
| CAUSE UNKNOWN | 88.19 | 3,490.97 | 13.36 | .00 | .00 | .00 | .00 | .00 |
| PRIORITY ORGANICS | 449.39 | 87,564.54 | 853.64 | 12.93 | .00 | 120.00 | .00 | .00 |
| TOTAL SUSPENDED SOLIDS (TSS) | 3,626.06 | 609.00 | 2.06 | .00 | .00 | .00 | .00 | .00 |
| METALS | 3,308.73 | 589,632.40 | 745.10 | 155.52 | .00 | 142,023.44 | .00 | .00 |
| NICKEL | 72.68 | .00 | 341.44 | 2.64 | .00 | .00 | .00 | .00 |
| OTHER INORGANICS | 184.78 | 953.51 | .00 | .00 | .00 | 44.47 | .00 | .00 |
| UNKNOWN TOXICITY | 1,254.46 | 2,450.73 | 309.98 | .00 | .00 | 12,659.01 | .00 | .00 |
| BORON | 407.06 | 39,743.30 | .00 | .00 | .00 | 30.09 | .00 | .00 |
| SULFATES | 307.51 | 118.55 | .00 | .00 | .00 | .00 | .00 | .00 |
| AMMONIA (UNIONIZED) - TOXIN | 613.60 | 27,913.60 | .32 | .00 | .00 | 30.50 | .00 | .00 |
| LEAD | 40.13 | 85,412.37 | 6.61 | .00 | .00 | .00 | .00 | .00 |
| DEBRIS | 5,209.11 | 862.31 | 233.97 | 20.01 | .00 | .00 | .00 | .00 |
| SILVER | 105.97 | 1,701.75 | .00 | .00 | .00 | .00 | .00 | .00 |
| MANGANESE | 108.52 | 1,031.97 | .00 | .00 | .00 | .00 | .00 | .00 |
| TEMPERATURE, WATER | 17,177.53 | 565.82 | .02 | .00 | .00 | .00 | .00 | .00 |
| HABITAT ALTERATIONS | 11,440.07 | 68,094.05 | 236.61 | .00 | .00 | 105,677.18 | .00 | .00 |
| FILLING AND DRAINING | 1,535.40 | 87,978.44 | 25.12 | .00 | .00 | 8.00 | .00 | .00 |
| ODOR THRESHOLD NUMBER | 60.65 | 1,236.20 | .00 | .00 | .00 | .00 | .00 | .00 |
| ORGANIC ENRICHMENT/LOW DO | 6,955.36 | 138,512.66 | 24.90 | .00 | .00 | 66,339.30 | .00 | .00 |
| PATHOGENS/PATH.INDICATORS | 5,629.54 | 272,119.52 | 69.48 | 119.10 | .00 | 12,057.50 | .00 | .00 |
| MERCURY | 886.76 | 205,847.26 | 383.27 | 41.00 | .00 | .00 | .00 | .00 |
| TITANIUM | .00 | .00 | .00 | 14.00 | .00 | .00 | .00 | .00 |
| MOLYBDENUM | 35.92 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL TOXICS | 137.94 | 8,537.40 | 1.68 | .00 | .00 | .00 | .00 | .00 |
| NON-NATIVE FISH/SHELLFISH/ZOOPLANKTON SPECIES | 932.33 | 85,403.61 | 427.29 | .00 | .00 | 289.20 | .00 | .00 |
| CADMIUM | 30.23 | 5,879.85 | .62 | 83.87 | .00 | .00 | .00 | .00 |
| CHLORINE | 29.63 | .00 | .02 | .00 | .00 | .00 | .00 | .00 |
| SELENIUM | 1,517.09 | 233,340.00 | 292.81 | .00 | .00 | 23,007.27 | .00 | .00 |
| RADIATION | 22.21 | 39,743.30 | .00 | .00 | .00 | 2.41 | .00 | .00 |
| OIL AND GREASE | 163.91 | 122,139.65 | 1.27 | .00 | .00 | 468.00 | .00 | .00 |
| FLOW ALTERATION | 9,662.84 | 337,375.18 | 298.61 | .00 | .00 | 27,844.19 | .00 | .00 |
| NONPRIORITY ORGANICS | 28.02 | 86,937.88 | 1.68 | .00 | .00 | 13.23 | .00 | .00 |
| IRON | 141.73 | 85,364.10 | .00 | .00 | .00 | .00 | .00 | .00 |
| NUTRIENTS | 12,176.16 | 473,440.24 | 22.48 | .00 | .00 | 66,824.34 | .00 | .00 |
| SEDIMENTATION/SILTATION | 18,849.40 | 279,588.06 | 49.75 | .00 | .00 | 493.00 | .00 | .00 |
| NON-NATIVE AQUATIC PLANTS | 197.53 | 7,528.17 | .00 | .00 | .00 | .00 | .00 | .00 |
| PH | 358.74 | 158,867.12 | .02 | .00 | .00 | 30.50 | .00 | .00 |
| COPPER | 386.69 | 17,795.42 | 112.70 | 2.64 | .00 | .00 | .00 | .00 |
| SALINITY | 2,291.16 | 436,252.04 | 35.86 | .00 | .00 | 176,439.40 | .00 | .00 |
| TURBIDITY | 1,045.22 | 86,353.74 | .03 | .00 | .00 | .00 | .00 | .00 |
| PESTICIDES | 3,579.40 | 91,878.89 | 841.24 | 63.01 | .00 | 362.11 | .00 | .00 |
California
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) | |
| OTHER | 996.23 | 3,978.25 | 15.66 | .00 | .00 | 65,636.78 | .00 | .00 |
| DAIRIES | 803.97 | 1,193.56 | .00 | .00 | .00 | .00 | .00 | .00 |
| LAND DISPOSAL | 1,795.96 | 24,329.75 | 16.02 | 1.20 | .00 | 496.32 | .00 | .00 |
| EXOTIC SPECIES | 54.76 | .00 | 149.82 | .00 | .00 | .00 | .00 | .00 |
| NONPOINT SOURCE | 17,315.12 | 215,958.54 | 538.80 | 57.18 | .00 | 62,901.40 | .00 | .00 |
| OTHER URBAN RUNOFF | 501.91 | 22,398.62 | .01 | 1.09 | .00 | 2.00 | .00 | .00 |
| OUT-OF-STATE SOURCE | 2,740.81 | 233,340.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RESOURCE EXTRACTION | 7,402.59 | 111,998.43 | 581.51 | 11.87 | .00 | 17.00 | .00 | .00 |
| CONTAMINATED SEDIMENTS | 226.56 | 153.64 | 272.74 | 11.87 | .00 | .00 | .00 | .00 |
| SILVICULTURE HARVESTING | 6,616.56 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AGRICULTURAL WATER DIVERSION | 1,954.25 | 47,991.67 | .00 | .00 | .00 | .00 | .00 | .00 |
| BOAT DISCHARGES/VESSEL WASTES | .00 | 86,111.20 | 158.52 | 20.42 | .00 | .00 | .00 | .00 |
| CONSTRUCTION/LAND DEVELOPMENT | 7,322.94 | 110,294.99 | 15.61 | 3.04 | .00 | 12,971.29 | .00 | .00 |
| NON-IRRIGATED CROP PRODUCTION | 744.54 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DISTURBED SITES (LAND DEVELOP.) | 2,133.00 | 85,500.10 | .00 | .00 | .00 | .00 | .00 | .00 |
| PASTURE GRAZING-RIPARIAN AND/OR UPLAND | 2,211.78 | 7,695.05 | 18.03 | .00 | .00 | 10.00 | .00 | .00 |
| FOREST ROADS (ROAD CONSTRUCTION AND USE) | 9,273.93 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NURSERIES | 23.29 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| WASTEWATER | 583.68 | 21,252.72 | 2.06 | .87 | .00 | .00 | .00 | .00 |
| MANURE LAGOONS | 134.03 | .00 | .31 | .00 | .00 | .00 | .00 | .00 |
| GROUNDWATER WITHDRAWAL | 52.52 | 97,546.20 | 33.86 | .00 | .00 | 3,045.38 | .00 | .00 |
| AGRICULTURE-STORM RUNOFF | 3,684.70 | .00 | 3.87 | .00 | .00 | .00 | .00 | .00 |
| RANGELAND (UNMANAGED PASTURE) GRAZING | 3,549.03 | 29,972.22 | 16.36 | .00 | .00 | 30,113.38 | .00 | .00 |
| IMPACTS FROM ABANDONED MINE LANDS (INACTIVE) | 118.12 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LAND APPLICATION OF WASTEWATER (NON-AGRICULTURAL) | 1,614.41 | 88,362.95 | .08 | .00 | .00 | 1.04 | .00 | .00 |
| RECREATIONAL AND TOURISM ACTIVITIES (NON-BOATING) | 373.90 | 8,571.37 | .21 | 20.01 | .00 | 787.39 | .00 | .00 |
| SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 3,784.65 | 107,039.91 | .00 | .00 | .00 | 17.01 | .00 | .00 |
| UPSTREAM IMPOUNDMENTS (E.G., PL-566 NRCS STRUCTURES) | 8,076.33 | 7,647.39 | 13.35 | .00 | .00 | .00 | .00 | .00 |
| MAJOR MUNICIPAL POINT SOURCE-DRY AND/OR WET WEATHER DISCHARGE | 609.04 | .00 | 33.86 | .00 | .00 | .00 | .00 | .00 |
| GOLF COURSES | 14.70 | 2,865.01 | .00 | .00 | .00 | 194.18 | .00 | .00 |
| SILVICULTURE | 15,252.56 | 106,887.28 | .00 | .00 | .00 | 2.00 | .00 | .00 |
| SALTWATER INTRUSION | 31.93 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOSS OF RIPARIAN HABITAT | 19,448.71 | 85,364.10 | .31 | .00 | .00 | .00 | .00 | .00 |
| IRRIGATED CROP PRODUCTION | 4,219.31 | 233,454.57 | 6.42 | .00 | .00 | 120.00 | .00 | .00 |
| DOMESTIC USE OF GROUND WATER | .00 | .00 | 33.86 | .00 | .00 | .00 | .00 | .00 |
| ATMOSPHERIC DEPOSITON - TOXICS | 305.26 | 117,057.13 | 726.52 | 20.01 | .00 | .00 | .00 | .00 |
| AGRICULTURE-IRRIGATION TAILWATER | 5,148.82 | 1,135.59 | .85 | .00 | .00 | .00 | .00 | .00 |
| URBAN RUNOFF--INDUSTRIAL PERMITTED | 87.23 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| STORM SEWERS | 10.03 | 747.10 | .00 | .00 | .00 | .00 | .00 | .00 |
| SURFACE MINING | 2,069.51 | 6,866.61 | 176.08 | 11.87 | .00 | .00 | .00 | .00 |
| ILLEGAL DUMPING | 71.16 | .00 | 25.12 | .00 | .00 | .00 | .00 | .00 |
| SUBSURFACE MINING | .00 | 2,599.93 | .00 | .00 | .00 | 1.00 | .00 | .00 |
| TRANSIENT ENCAMPMENTS | 73.20 | .00 | 25.22 | 3.12 | .00 | .00 | .00 | .00 |
| MAJOR INDUSTRIAL POINT SOURCE | 609.04 | .00 | 33.86 | .00 | .00 | .00 | .00 | .00 |
| ANIMAL FEEDING OPERATIONS (NPS) | 9.01 | .00 | .01 | 1.20 | .00 | .00 | .00 | .00 |
| INTENSIVE ANIMAL FEEDING OPERATIONS | 938.78 | .00 | .02 | 1.20 | .00 | .00 | .00 | .00 |
| URBAN RUNOFF--NON-INDUSTRIAL PERMITTED | 505.78 | .00 | 3.39 | .29 | .00 | .00 | .00 | .00 |
| CROP PRODUCTION (CROP LAND OR DRY LAND) | 2,576.23 | 55.57 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 2,945.79 | 158,997.11 | 589.74 | 85.60 | .00 | 79,171.43 | .00 | .00 |
| STREAMBANK MODIFICATIONS/DESTABLIZATION | 14,461.55 | 85,364.10 | .31 | .00 | .00 | .00 | .00 | .00 |
| HIGHWAYS, ROADS, BRIDGES, INFRASTRUCTURE (NEW CONSTRUCTION) | 284.66 | 21,088.41 | .00 | .00 | .00 | .00 | .00 | .00 |
| LANDFILLS | 19.07 | .00 | 14.50 | .00 | .00 | 495.28 | .00 | .00 |
| AGRICULTURE | 15,065.62 | 396,142.56 | 572.71 | 16.44 | .00 | 170,689.63 | .00 | .00 |
| MINE TAILINGS | 3,335.82 | 2,933.46 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHANNELIZATION | 4,838.79 | .00 | .10 | .00 | .00 | 1.00 | .00 | .00 |
| SURFACE RUNOFF | 450.17 | 85,756.72 | 1.27 | .00 | .00 | .00 | .00 | .00 |
| WATER DIVERSIONS | 5,536.69 | .00 | .00 | .00 | .00 | 74.56 | .00 | .00 |
| RAILROAD SLAG PILE | .00 | .00 | .12 | .00 | .00 | .00 | .00 | .00 |
| AGRICULTURE-GRAZING | 2,262.89 | .00 | .00 | 3.31 | .00 | .00 | .00 | .00 |
| UNKNOWN POINT SOURCE | 437.96 | 7,092.69 | 152.79 | 3.33 | .00 | .00 | .00 | .00 |
| MANAGED PASTURE GRAZING | 2,175.26 | 179.89 | .54 | .00 | .00 | .00 | .00 | .00 |
| PASTURE GRAZING-RIPARIAN | 7.93 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FLOW ALTERATIONS FROM WATER DIVERSIONS | 12,472.09 | 191,285.26 | .00 | .00 | .00 | 93,670.01 | .00 | .00 |
| CHANGES IN ORDINARY STRATIFICATION AND BOTTOM WATER HYPOXIA/ANOXIA | 242.76 | 29,350.70 | .00 | .00 | .00 | .00 | .00 | .00 |
| POINT SOURCE | 566.33 | 187.63 | 158.38 | 34.49 | .00 | .00 | .00 | .00 |
| BALLAST WATER | .00 | .00 | 444.89 | .00 | .00 | .00 | .00 | .00 |
| DREDGE MINING | .00 | .00 | .00 | .00 | .00 | 1.00 | .00 | .00 |
| CHANNEL EROSION | 6,433.64 | .00 | 1.02 | .00 | .00 | .00 | .00 | .00 |
| NATURAL SOURCES | 11,469.62 | 537,145.94 | 730.89 | 100.24 | .00 | 90,510.95 | .00 | .00 |
| SEPTAGE DISPOSAL | 305.42 | 364.31 | 20.26 | 26.18 | .00 | 1.00 | .00 | .00 |
| ROAD CONSTRUCTION | 625.36 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BRIDGE CONSTRUCTION | 755.61 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPSTREAM IMPOUNDMENT | 8,122.41 | 7,647.39 | 13.35 | .00 | .00 | .00 | .00 | .00 |
| SEDIMENT RESUSPENSION | 32.17 | 164.31 | .00 | .00 | .00 | .00 | .00 | .00 |
| PASTURE GRAZING-UPLAND | 92.87 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| COMBINED SEWER OVERFLOWS | 1,413.36 | .00 | .08 | 2.48 | .00 | .00 | .00 | .00 |
| AGRICULTURAL RETURN FLOWS | 2,270.08 | 28,161.12 | .01 | .00 | .00 | 3,165.38 | .00 | .00 |
| SILVICULTURAL POINT SOURCES | 3,727.62 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MINOR INDUSTRIAL POINT SOURCE | 609.04 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AGRICULTURE-SUBSURFACE DRAINAGE | 2,904.11 | 233,547.19 | 68.88 | .00 | .00 | 7,961.89 | .00 | .00 |
| HIGHWAY/ROAD/BRIDGE CONSTRUCTION | 3,315.28 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DRAINAGE/FILLING/LOSS OF WETLANDS | 9,807.42 | 86,183.38 | .00 | .00 | .00 | 510.50 | .00 | .00 |
| MUNICIPAL POINT SOURCE DISCHARGES | 4,119.34 | 257.00 | 730.34 | .00 | .00 | 78,339.30 | .00 | .00 |
| SILVICULTURE PLANTATION MANAGEMENT | 57.95 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| GRAZING IN RIPARIAN OR SHORELINE ZONES | 4,966.32 | 59.00 | .31 | .00 | .00 | .00 | .00 | .00 |
| HISTORIC BOTTOM DEPOSITS (NOT SEDIMENT) | .00 | .00 | 25.12 | .00 | .00 | .00 | .00 | .00 |
| LIVESTOCK (GRAZING OR FEEDING OPERATIONS) | 3,474.53 | 44,456.59 | 4.68 | .00 | .00 | .00 | .00 | .00 |
| ABOVE GROUND STORAGE TANK LEAKS (TANK FARMS) | 6.16 | 85,364.10 | 25.21 | .00 | .00 | .00 | .00 | .00 |
| HIGHWAY/ROAD/BRIDGE RUNOFF (NON-CONSTRUCTION RELATED) | 2,258.80 | 106,887.28 | 25.12 | .00 | .00 | 470.00 | .00 | .00 |
| PETROLEUM/NATURAL GAS PRODUCTION ACTIVITIES (PERMITTED) | 65.45 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MINOR MUNICIPAL POINT SOURCE-DRY AND/OR WET WEATHER DISCHARGE | 630.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) | 89.09 | 24,329.75 | .00 | 1.20 | .00 | .00 | .00 | .00 |
| MILL TAILINGS | 93.91 | 102.31 | .00 | .00 | .00 | .00 | .00 | .00 |
| PLACER MINING | 992.79 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| EROSION/SILTATION | 12,519.99 | 2,299.95 | 2.37 | .00 | .00 | .00 | .00 | .00 |
| HABITAT MODIFICATION | 18,103.18 | 118,576.48 | .48 | .00 | .00 | 336.72 | .00 | .00 |
| GEOTHERMAL DEVELOPMENT | 462.71 | 58,420.67 | .00 | .00 | .00 | 62,590.40 | .00 | .00 |
| GOLF COURSE ACTIVITIES | 35.92 | .00 | .00 | .00 | .00 | 194.18 | .00 | .00 |
| UNKNOWN NONPOINT SOURCE | 1,850.33 | 2,874.83 | 71.99 | 3.39 | .00 | .00 | .00 | .00 |
| SPILLS FROM TRUCKS OR TRAINS | 255.25 | 86,203.52 | 266.31 | 57.91 | .00 | 33.70 | .00 | .00 |
| MARINAS AND RECREATIONAL BOATING | .00 | 108,231.56 | 29.85 | .70 | .00 | .00 | .00 | .00 |
| EROSION FROM DERELICT LAND (BARREN LAND) | 96.18 | .00 | 25.12 | .00 | .00 | .00 | .00 | .00 |
| DAM CONSTRUCTION (OTHER THAN UPSTREAM FLOOD CONTROL PROJECTS) | 10,412.23 | 2,094.34 | .00 | .00 | .00 | .00 | .00 | .00 |
| PERMITTED RUNOFF FROM CONFINED ANIMAL FEEDING OPERATIONS (CAFOS) | 61.14 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BOATYARDS | .00 | 85,446.94 | 26.63 | .41 | .00 | .00 | .00 | .00 |
| NATURAL RUNOFF | 7.94 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCE UNKNOWN | 2,504.70 | 598,456.06 | 560.17 | 15.40 | .00 | 78,534.48 | .00 | .00 |
| HYDROMODIFICATION | 16,682.09 | 302,373.33 | 606.85 | .00 | .00 | 94,185.49 | .00 | .00 |
| IN-WATER RELEASES | .00 | 819.28 | .00 | .00 | .00 | .00 | .00 | .00 |
| ACID MINE DRAINAGE | 108.50 | 102.31 | .00 | .00 | .00 | .00 | .00 | .00 |
| AGRICULTURE-ANIMAL | 808.54 | 12.34 | .00 | .00 | .00 | .00 | .00 | .00 |
| GROUNDWATER LOADINGS | 30.94 | 384.51 | 123.90 | .00 | .00 | .00 | .00 | .00 |
| NONPOINT/POINT SOURCE | 684.01 | .00 | 17.07 | 15.47 | .00 | .00 | .00 | .00 |
| RCRA HAZARDOUS WASTE SITES | 126.33 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SPECIALITY CROP PRODUCTION | 3,713.20 | .00 | .62 | .00 | .00 | .00 | .00 | .00 |
| INDUSTRIAL POINT SOURCE DISCHARGE | 2,856.01 | 30,306.21 | 789.15 | .29 | .00 | 30.50 | .00 | .00 |
| DRY WEATHER FLOWS WITH NPS POLLUTANTS | 609.04 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LUST/LEAKING UNDERGROUND STORAGE TANKS | .00 | .00 | 25.12 | .00 | .00 | .00 | .00 | .00 |
| URBAN RUNOFF--EROSION AND SEDIMENTATION | 1.88 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DREDGING (E.G., FOR NAVIGATION CHANNELS) | 68.58 | 85,364.10 | 297.87 | .00 | .00 | .00 | .00 | .00 |
