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Assessment Data for the State of Washington Year 2004

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Assessing Water Quality (Questions and Answers)

The 2004 National Assessment
Database
(Fact Sheet)

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No State 305(b) Water Quality Assessment Report is available.
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Total Assessed Waters for the State of Washington

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) Inland Lake Shoreline (Miles)
Total Assessed Waters 3,735.00 531,200.00 1,368.00 11.00 .00 .00 .00 .00 .00
Estimated Total Water Size in WA 70,439.00 249,277.00 2,904.00 Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable
Percent of Waters Assessed 5.30 213.10 47.11 Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable

Assessed Waters of Washington by Watershed (8 Digit USGS Cataloging Unit)

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) Inland Lake Shoreline (Miles)
8-digit HUC Name Not Reported 88.00 20,480.00 260.00 3.00 .00 .00 .00 .00 .00
BANKS LAKE 6.00 11,520.00 .00 .00 .00 .00 .00 .00 .00
CHIEF JOSEPH 9.00 640.00 .00 .00 .00 .00 .00 .00 .00
COLVILLE 85.00 12,160.00 1.00 .00 .00 .00 .00 .00 .00
CRESCENT-HOKO 41.00 1,920.00 23.00 .00 .00 .00 .00 .00 .00
DESCHUTES 14.00 6,400.00 .00 .00 .00 .00 .00 .00 .00
DUNGENESS-ELWHA 85.00 640.00 69.00 .00 .00 .00 .00 .00 .00
DUWAMISH 77.00 11,520.00 1.00 .00 .00 .00 .00 .00 .00
FRANKLIN D. ROOSEVELT LAKE 53.00 5,760.00 .00 .00 .00 .00 .00 .00 .00
FRASER 22.00 640.00 2.00 .00 .00 .00 .00 .00 .00
GRAYS HARBOR 46.00 1,280.00 42.00 .00 .00 .00 .00 .00 .00
HANGMAN 12.00 640.00 2.00 .00 .00 .00 .00 .00 .00
HOH-QUILLAYUTE 103.00 5,120.00 .00 .00 .00 .00 .00 .00 .00
HOOD CANAL 95.00 13,440.00 258.00 .00 .00 .00 .00 .00 .00
KETTLE 56.00 3,840.00 .00 .00 .00 .00 .00 .00 .00
KLICKITAT 18.00 1,280.00 .00 .00 .00 .00 .00 .00 .00
LAKE CHELAN 6.00 5,760.00 2.00 .00 .00 .00 .00 .00 .00
LAKE WASHINGTON 108.00 62,080.00 7.00 .00 .00 .00 .00 .00 .00
LEWIS 68.00 5,760.00 .00 .00 .00 .00 .00 .00 .00
LITTLE SPOKANE 20.00 5,760.00 1.00 .00 .00 .00 .00 .00 .00
LOWER CHEHALIS 49.00 3,200.00 1.00 .00 .00 .00 .00 .00 .00
LOWER COLUMBIA 17.00 .00 1.00 .00 .00 .00 .00 .00 .00
LOWER COLUMBIA-CLATSKANIE 59.00 1,280.00 7.00 .00 .00 .00 .00 .00 .00
LOWER COLUMBIA-SANDY 71.00 3,200.00 8.00 .00 .00 .00 .00 .00 .00
LOWER COWLITZ 37.00 3,840.00 2.00 .00 .00 .00 .00 .00 .00
LOWER CRAB 51.00 30,720.00 2.00 .00 .00 .00 .00 .00 .00
LOWER GRANDE RONDE 2.00 .00 .00 .00 .00 .00 .00 .00 .00
LOWER SKAGIT 64.00 5,760.00 12.00 .00 .00 .00 .00 .00 .00
LOWER SNAKE 9.00 640.00 1.00 .00 .00 .00 .00 .00 .00
LOWER SNAKE-ASOTIN 30.00 .00 .00 .00 .00 .00 .00 .00 .00
LOWER SNAKE-TUCANNON 88.00 .00 2.00 .00 .00 .00 .00 .00 .00
LOWER SPOKANE 17.00 5,760.00 1.00 .00 .00 .00 .00 .00 .00
LOWER YAKIMA WASHINGTON 68.00 3,200.00 .00 .00 .00 .00 .00 .00 .00
METHOW 30.00 3,840.00 .00 .00 .00 .00 .00 .00 .00
MIDDLE COLUMBIA-HOOD 104.00 3,200.00 2.00 .00 .00 .00 .00 .00 .00
MIDDLE COLUMBIA-LAKE WALLULA 18.00 .00 .00 .00 .00 .00 .00 .00 .00
MOSES COULEE 1.00 2,560.00 .00 .00 .00 .00 .00 .00 .00
NACHES 57.00 2,560.00 1.00 .00 .00 .00 .00 .00 .00
NISQUALLY 48.00 13,440.00 1.00 .00 .00 .00 .00 .00 .00
NOOKSACK 176.00 5,120.00 1.00 .00 .00 .00 .00 .00 .00
OKANOGAN 25.00 15,360.00 9.00 .00 .00 .00 .00 .00 .00
PALOUSE 50.00 9,600.00 .00 .00 .00 .00 .00 .00 .00
PEND OREILLE 119.00 10,880.00 2.00 .00 .00 .00 .00 .00 .00
PUGET SOUND 195.00 41,600.00 405.00 .00 .00 .00 .00 .00 .00
PUYALLUP 109.00 10,880.00 6.00 .00 .00 .00 .00 .00 .00
QUEETS-QUINAULT 38.00 .00 .00 8.00 .00 .00 .00 .00 .00
ROCK 4.00 10,880.00 .00 .00 .00 .00 .00 .00 .00
SAN JUAN ISLANDS 22.00 5,120.00 52.00 .00 .00 .00 .00 .00 .00
SANPOIL 18.00 1,280.00 2.00 .00 .00 .00 .00 .00 .00
SAUK 6.00 5,760.00 .00 .00 .00 .00 .00 .00 .00
SIMILKAMEEN 15.00 3,200.00 .00 .00 .00 .00 .00 .00 .00
SKOKOMISH 32.00 640.00 .00 .00 .00 .00 .00 .00 .00
SKYKOMISH 24.00 21,120.00 2.00 .00 .00 .00 .00 .00 .00
SNOHOMISH 61.00 8,320.00 .00 .00 .00 .00 .00 .00 .00
SNOQUALMIE 32.00 23,680.00 .00 .00 .00 .00 .00 .00 .00
STILLAGUAMISH 98.00 7,040.00 7.00 .00 .00 .00 .00 .00 .00
STRAIT OF GEORGIA 74.00 18,560.00 33.00 .00 .00 .00 .00 .00 .00
UPPER CHEHALIS 145.00 3,840.00 1.00 .00 .00 .00 .00 .00 .00
UPPER COLUMBIA-ENTIAT 24.00 8,320.00 .00 .00 .00 .00 .00 .00 .00
UPPER COLUMBIA-PRIEST RAPIDS 42.00 7,040.00 4.00 .00 .00 .00 .00 .00 .00
UPPER COWLITZ 99.00 3,200.00 .00 .00 .00 .00 .00 .00 .00
UPPER CRAB 24.00 15,360.00 .00 .00 .00 .00 .00 .00 .00
UPPER SKAGIT 10.00 9,600.00 .00 .00 .00 .00 .00 .00 .00
UPPER SPOKANE 20.00 2,560.00 .00 .00 .00 .00 .00 .00 .00
UPPER YAKIMA 138.00 10,240.00 3.00 .00 .00 .00 .00 .00 .00
WALLA WALLA 90.00 640.00 21.00 .00 .00 .00 .00 .00 .00
WENATCHEE 124.00 12,800.00 31.00 .00 .00 .00 .00 .00 .00
WILLAPA BAY 100.00 640.00 86.00 .00 .00 .00 .00 .00 .00


Washington 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 color.gif% Good
color.gif% Threatened
color.gif% Impaired
OVERALL USE SUPPORT 3,735.00 47.18 .00 52.82 color.gifcolor.gif
The state assessed 3,735.00 miles of rivers and streams, or 5.30% of 70,439.00 total miles.

Washington Assessed Waters
Water Quality Attainment for Rivers and Streams

Description of this table
Attainment Status Miles Percent of Assessed
Good 1,762.00 47.18
Threatened .00 .00
Impaired 1,973.00 52.82
Total Miles Assessed 3,735.00 100.00

Washington Top Causes of Impairments
for Rivers and Streams

Description of this table
# State Cause Name Total
Miles
Impaired
1 TEMPERATURE, WATER 925.00
2 FECAL COLIFORM 861.00
3 OXYGEN, DISSOLVED 326.00
4 PH 149.00
5 DDE 56.00
6 INSTREAM FLOW 55.00
7 TOTAL DISSOLVED GAS 53.00
8 POLYCHLORINATED BIPHENYLS 49.00
9 DDT 37.00
10 DIOXIN (INCLUDING 2,3,7,8-TCDD) 37.00

Washington Top Probable Sources of Impairments
for Rivers and Streams

No Probable Sources Reported.


Washington 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 color.gif% Good
color.gif% Threatened
color.gif% Impaired
OVERALL USE SUPPORT 531,200.00 77.47 .00 22.53 color.gifcolor.gif
The state assessed 531,200.00 acres of lakes, ponds and reservoirs, or 213.10% of 249,277.00 total acres.

Washington Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs

Description of this table
Attainment Status Acres Percent of Assessed
Good 411,520.00 77.47
Threatened .00 .00
Impaired 119,680.00 22.53
Total Acres Assessed 531,200.00 100.00

Washington Top Causes of Impairments
for Lakes, Ponds and Reservoirs

Description of this table
# State Cause Name Total
Acres
Impaired
1 INVASIVE EXOTIC SPECIES 55,680.00
2 FECAL COLIFORM 29,440.00
3 PHOSPHORUS (TOTAL) 27,520.00
4 POLYCHLORINATED BIPHENYLS 16,640.00
5 DIELDRIN 5,760.00
6 DDE 4,480.00
7 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN (ONLY) 4,480.00
8 MERCURY 4,480.00
9 AMMONIA (TOTAL) 4,480.00
10 DIOXIN (INCLUDING 2,3,7,8-TCDD) 3,840.00

Washington Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs

No Probable Sources Reported.


Washington 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 color.gif% Good
color.gif% Threatened
color.gif% Impaired
OVERALL USE SUPPORT 1,368.00 69.88 .00 30.12 color.gifcolor.gif
The state assessed 1,368.00 square miles of bays and estuaries, or 47.11% of 2,904.00 total square miles.

Washington Assessed Waters
Water Quality Attainment for Bays and Estuaries

Description of this table
Attainment Status Square Miles Percent of Assessed
Good 956.00 69.88
Threatened .00 .00
Impaired 412.00 30.12
Total Square Miles Assessed 1,368.00 100.00

Washington Top Causes of Impairments
for Bays and Estuaries

Description of this table
# State Cause Name Total
Square Miles
Impaired
1 INVASIVE EXOTIC SPECIES 145.00
2 FECAL COLIFORM 114.00
3 FISH HABITAT 62.00
4 OXYGEN, DISSOLVED 53.00
5 POLYCHLORINATED BIPHENYLS 20.00
6 PH 12.00
7 TEMPERATURE, WATER 8.00
8 CHRYSENE (C1-C4) 5.00
9 DEHP (DI-SEC-OCTYL PHTHALATE) 5.00
10 BENZO[A]ANTHRACENE 4.00

Washington Top Probable Sources of Impairments
for Bays and Estuaries

No Probable Sources Reported.


Washington Assessed Waters
Individual Use Support for Coastal Shorelines

Description of this table
State Designated Use Total Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
OVERALL USE SUPPORT 11.00 100.00 .00 .00 color.gif
The total size of this water type for the state is not currently available.

Washington Assessed Waters
Water Quality Attainment for Coastal Shorelines

Description of this table
Attainment Status Miles Percent of Assessed
Good 11.00 100.00
Threatened .00 .00
Impaired .00 .00
Total Miles Assessed 11.00 100.00

Washington Top Causes of Impairments
for Coastal Shorelines

No Causes of Impairment Reported.

Washington Top Probable Sources of Impairments
for Coastal Shorelines

No Probable Sources Reported.


Washington

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 (Square Miles) Inland Lake Shoreline (Miles)
.ALPHA.-BHC 8.00 640.00 .00 .00 .00 .00 .00 .00 .00
2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN (ONLY) 1.00 4,480.00 .00 .00 .00 .00 .00 .00 .00
ALDRIN 2.00 640.00 .00 .00 .00 .00 .00 .00 .00
AMMONIA (TOTAL) 32.00 4,480.00 2.00 .00 .00 .00 .00 .00 .00
ARSENIC 7.00 .00 .00 .00 .00 .00 .00 .00 .00
BENZO(A)PYRENE (PAHS) .00 .00 1.00 .00 .00 .00 .00 .00 .00
BENZO(B)FLUORENE .00 .00 1.00 .00 .00 .00 .00 .00 .00
BENZO(K)FLUORENE .00 .00 1.00 .00 .00 .00 .00 .00 .00
BENZO[A]ANTHRACENE .00 .00 4.00 .00 .00 .00 .00 .00 .00
BENZO[B]FLUORANTHENE .00 .00 1.00 .00 .00 .00 .00 .00 .00
BENZO[K]FLUORANTHENE .00 .00 1.00 .00 .00 .00 .00 .00 .00
BIOASSESSMENT 2.00 .00 .00 .00 .00 .00 .00 .00 .00
CADMIUM 1.00 .00 .00 .00 .00 .00 .00 .00 .00
CHLORDANE 7.00 1,280.00 .00 .00 .00 .00 .00 .00 .00
CHLORINATED PESTICIDES .00 .00 1.00 .00 .00 .00 .00 .00 .00
CHLORINE 7.00 .00 .00 .00 .00 .00 .00 .00 .00
CHLORPYRIFOS 4.00 .00 .00 .00 .00 .00 .00 .00 .00
CHRYSENE (C1-C4) .00 .00 5.00 .00 .00 .00 .00 .00 .00
COARSE SEDIMENT 9.00 .00 .00 .00 .00 .00 .00 .00 .00
COPPER 11.00 .00 .00 .00 .00 .00 .00 .00 .00
DDD 24.00 640.00 .00 .00 .00 .00 .00 .00 .00
DDE 56.00 4,480.00 1.00 .00 .00 .00 .00 .00 .00
DDT 37.00 640.00 2.00 .00 .00 .00 .00 .00 .00
DEHP (DI-SEC-OCTYL PHTHALATE) .00 .00 5.00 .00 .00 .00 .00 .00 .00
DIAZINON 2.00 .00 .00 .00 .00 .00 .00 .00 .00
DIBENZ[A,H]ANTHRACENE .00 .00 1.00 .00 .00 .00 .00 .00 .00
DIELDRIN 18.00 5,760.00 2.00 .00 .00 .00 .00 .00 .00
DIOXIN (INCLUDING 2,3,7,8-TCDD) 37.00 3,840.00 1.00 .00 .00 .00 .00 .00 .00
DIOXINS, TOTAL .00 .00 1.00 .00 .00 .00 .00 .00 .00
ENDOSULFAN 6.00 .00 .00 .00 .00 .00 .00 .00 .00
FECAL COLIFORM 861.00 29,440.00 114.00 .00 .00 .00 .00 .00 .00
FINE SEDIMENT 10.00 .00 .00 .00 .00 .00 .00 .00 .00
FISH HABITAT 14.00 640.00 62.00 .00 .00 .00 .00 .00 .00
FURANS, TOTAL .00 .00 1.00 .00 .00 .00 .00 .00 .00
GUTHION 3.00 .00 .00 .00 .00 .00 .00 .00 .00
HEPTACHLOR .00 640.00 .00 .00 .00 .00 .00 .00 .00
HEPTACHLOR EPOXIDE 2.00 .00 .00 .00 .00 .00 .00 .00 .00
HEXACHLOROBENZENE 2.00 .00 .00 .00 .00 .00 .00 .00 .00
INDENO[1,2,3-CD]PYRENE .00 .00 1.00 .00 .00 .00 .00 .00 .00
INSTREAM FLOW 55.00 .00 .00 .00 .00 .00 .00 .00 .00
INVASIVE EXOTIC SPECIES 5.00 55,680.00 145.00 .00 .00 .00 .00 .00 .00
LARGE WOODY DEBRIS 3.00 .00 .00 .00 .00 .00 .00 .00 .00
LEAD 12.00 640.00 .00 .00 .00 .00 .00 .00 .00
MERCURY 6.00 4,480.00 1.00 .00 .00 .00 .00 .00 .00
NITROGEN (TOTAL) .00 640.00 .00 .00 .00 .00 .00 .00 .00
OXYGEN, DISSOLVED 326.00 1,920.00 53.00 .00 .00 .00 .00 .00 .00
PENTACHLOROPHENOL (PCP) 2.00 .00 2.00 .00 .00 .00 .00 .00 .00
PH 149.00 640.00 12.00 .00 .00 .00 .00 .00 .00
PHOSPHORUS (TOTAL) 2.00 27,520.00 .00 .00 .00 .00 .00 .00 .00
POLYCHLORINATED BIPHENYLS 49.00 16,640.00 20.00 .00 .00 .00 .00 .00 .00
POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) (AQUATIC ECOSYSTEMS) 1.00 .00 1.00 .00 .00 .00 .00 .00 .00
SEDIMENT BIOASSAY .00 640.00 .00 .00 .00 .00 .00 .00 .00
SEDIMENT BIOASSAYS -- ACUTE TOXICITY FRESHWATER .00 640.00 .00 .00 .00 .00 .00 .00 .00
SILVER 1.00 .00 .00 .00 .00 .00 .00 .00 .00
TEMPERATURE, WATER 925.00 .00 8.00 .00 .00 .00 .00 .00 .00
TOTAL DISSOLVED GAS 53.00 .00 .00 .00 .00 .00 .00 .00 .00
TURBIDITY 18.00 .00 2.00 .00 .00 .00 .00 .00 .00
WATER COLUMN BIOASSAY 1.00 .00 .00 .00 .00 .00 .00 .00 .00
ZINC 17.00 640.00 3.00 .00 .00 .00 .00 .00 .00

Washington

Probable Sources Contributing to Impairment

No Source Data Reported by the State.


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