Oregon Water Quality Assessment Report

Assessed Waters of Oregon by Watershed

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NOTE: The data provided in this report differs from the information provided in Oregon's 2004/2006 Integrated Report, which is available at http://www.deq.state.or.us/wq/assessment/rpt0406.htm. This is a result of differences between the data format of Oregon's state assessment database and the protocols used to summarize data for this report. While Oregon assessed some Bays, the data was not available in square miles, and is not included in this report. For more details concerning the assessment of Bays, please see Oregons 2004/2006 Integrated Report.

Features

Site-specific Targeted Monitoring Summary Results

Oregon (2006)

Description of this table

	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Coastal Shoreline (Miles)
	Size of Water
Good Waters	14,976.1	4,539.0	1.0
Previously impaired waters now attaining all uses
Threatened Waters
TMDL completed
TMDL alternative
Non-pollutant impairment
TMDL needed
Impaired Waters	31,059.6	133,818.9	4.0
TMDL completed
TMDL alternative
Non-pollutant impairment
TMDL needed	31,059.6	133,818.9	4.0
New TMDLs completed	5,989.0	.0	.0
Remaining TMDLs needed	25,070.6	133,818.9	4.0

Total Assessed Waters	46,035.7	138,357.9	5.0
Total Waters	114,823.0	618,934.0	Unavailable
Percent of Waters Assessed	40.1	22.4	Unavailable

Designated Use	Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Aesthetic Quality	3,653.6	69.5	.0	30.5
Anadromous Fish Passage	11,760.4	42.6	.0	57.4
Aquatic Life	11,329.3	86.5	.0	13.5
Bull Trout Spawning And Juvenile Rearing	730.5	34.3	.0	65.7
Cold-Water Aquatic Life	2,379.9	79.5	.0	20.5
Cool-Water Aquatic Life	3,264.5	82.5	.0	17.5
Core Cold Water Habitat	2,445.6	15.4	.0	84.6
Drinking Water	683.3	23.3	.0	76.7
Estuarine Water	170.6	93.1	.0	6.9
Fishing	73.1	1.5	.0	98.5
Human Health	1,220.4	57.5	.0	42.5
Livestock Watering	1.3	.0	.0	100.0
Redband Or Lahontan Cutthroat Trout	1,614.4	16.8	.0	83.2
Resident Fish And Aquatic Life	18,966.9	13.2	.0	86.8
Resident Trout Spawning	1,121.2	44.4	.0	55.6
Salmon And Steelhead Migration Corridor	538.3	.0	.0	100.0
Salmon And Steelhead Spawning	2,859.2	44.4	.0	55.6
Salmon And Trout Rearing And Migration	5,146.7	14.5	.0	85.5
Salmonid Fish Rearing	1,652.3	3.3	.0	96.7
Salmonid Fish Spawning	1,923.1	2.1	.0	97.9
Shellfish Growing	679.2	4.4	.0	95.6
Water Contact Recreation	7,251.1	59.8	.0	40.2

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
Temperature, Water	Temperature	17,253.1
Sedimentation/Siltation	Sediment	11,996.5
Nutrients	Nutrients	11,272.7
Nutrients - Eutrophication	Nutrients	10,507.6
pH	pH/Acidity/Caustic Conditions	5,370.3
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	4,261.4
Fecal Coliform	Pathogens	2,687.4
Escherichia Coli (E. Coli)	Pathogens	2,358.7
Iron	Metals (other than Mercury)	1,359.6
Ammonia, Total	Ammonia	998.4
Copper	Metals (other than Mercury)	949.5
Chlorophyll-A	Algal Growth	942.8
Mercury	Mercury	882.3
Chromium, Hexavalent	Metals (other than Mercury)	862.7
Nickel	Metals (other than Mercury)	854.1
Manganese	Metals (other than Mercury)	839.1
Alkalinity, Carbonate as CaCO3	pH/Acidity/Caustic Conditions	772.2
Zinc	Metals (other than Mercury)	768.8
Phosphorus, Elemental	Nutrients	768.1
Lead	Metals (other than Mercury)	724.4
Phosphate	Nutrients	701.9
Priority Organics Compounds	Toxic Organics	694.4
Metals	Metals (other than Mercury)	680.0
Habitat Alterations (Other Than Flow)	Habitat Alterations	670.7
2,3,7,8-Tetrachlorodibenzofuran	Dioxins	667.9
Organic Enrichment/Low Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	650.7
Cadmium	Metals (other than Mercury)	646.5
Chloride	Salinity/Total Dissolved Solids/Chlorides/Sulfates	611.2
Arsenic	Metals (other than Mercury)	584.4
Silver	Metals (other than Mercury)	539.6
Dieldrin	Pesticides	502.6
Antimony	Toxic Inorganics	486.4
Trivalent Arsenic (Arsenic III)	Metals (other than Mercury)	470.5
DDT	Pesticides	411.4
Selenium	Metals (other than Mercury)	406.0
Atrazine	Pesticides	405.5
Simazine	Pesticides	374.2
Lindane	Pesticides	353.9
Acidity pH < 6.5 or pH > 8.5	pH/Acidity/Caustic Conditions	330.4
Polychlorinated Biphenyls (PCBs)	Polychlorinated Biphenyls (PCBs)	328.3
DDE	Pesticides	326.3
Malathion	Pesticides	281.2
Chlorpyrifos	Pesticides	266.0
Pyrene	Toxic Organics	252.0
Beryllium	Metals (other than Mercury)	249.2
Aquatic Algae	Algal Growth	243.1
Thallium	Metals (other than Mercury)	241.4
Barium	Radiation	241.4
Diethyl Phthalate	Toxic Organics	240.8
Aldrin	Pesticides	240.5
Flow Disruption, Groundwater Mining, Inadequate Hydrology	Flow Alteration(s)	238.6
Chrysene	Toxic Organics	230.3
EPTC	Pesticides	227.5
Endrin	Pesticides	225.3
Other Pollutants/Loss of Cover, Predatio	Other Cause	224.6
Benzo[a]anthracene	Toxic Organics	220.5
Phenol	Toxic Organics	213.2
Benzo[g,h,i]perylene	Toxic Organics	195.7
Turbidity	Turbidity	173.8
Metals (other than Mercury)	Metals (other than Mercury)	167.3
Alpha-BHC	Pesticides	164.6
Prometon (Prometone)	Pesticides	150.1
Fluoranthene	Toxic Organics	148.9
Cyanide	Toxic Inorganics	145.1
Diazinon	Pesticides	144.9
DDD	Pesticides	142.0
Aluminum	Metals (other than Mercury)	142.0
Tributylin TBT (Tributylstanne)	Toxic Organics	142.0
Salinity/Total Dissolved Solids	Salinity/Total Dissolved Solids/Chlorides/Sulfates	142.0
Other Pollutants/Encroachment	Habitat Alterations	130.1
Diuron	Pesticides	127.3
DEHP (Di-Sec-Octyl Phthalate)	Pesticides	124.1
Terbacil	Pesticides	122.8
Parathion	Pesticides	116.0
Endosulfan	Pesticides	110.0
Fecal Bacteria	Pathogens	107.5
Pronamide	Pesticides	102.7
Trifluralin	Pesticides	98.8
Pathogens	Pathogens	90.1
Low Dissolved Oxygen Within The Top 3.0 Meters	Organic Enrichment/Oxygen Depletion	88.8
Pesticides	Pesticides	87.0
Dibutyl Phthalate	Pesticides	86.6
Chronic High Turbidity/Possible Sedimentation	Turbidity	78.5
Benzo[a]pyrene (PAHs)	Toxic Organics	78.5
Carbaryl	Pesticides	78.2
Nutrients - Toxics	Toxic Organics	70.7
Chlordane	Pesticides	65.4
Methoxychlor	Pesticides	65.3
Guthion	Pesticides	59.4
Chlorine	Chlorine	55.3
Nitrates	Nutrients	53.3
Not Applicable	Other Cause	50.9
Anthracene	Toxic Organics	48.6
Heptachlor	Pesticides	45.0
Other Pollutants/Solids, Sludge	Other Cause	40.5
Tetrachloroethylene	Toxic Organics	36.5
Biological	Cause Unknown - Impaired Biota	33.8
2,4,5-Tp (Silvex)	Pesticides	32.6
Acenaphthene	Toxic Organics	32.2
Isophorone	Toxic Organics	31.1
Toxaphene	Pesticides	26.5
Pentachlorophenol (PCP)	Toxic Organics	24.8
Dinoseb	Pesticides	24.2
Nutrients or Sediments	Nutrients	24.2
Butyl Benzyl Phthalate	Toxic Organics	23.7
Carbofuran	Pesticides	23.7
1,2,4,5-Tetrachlorobenzene	Toxic Organics	22.6
Trichloroethylene (TCE)	Toxic Organics	22.6
1,1,1-Trichloroethane	Toxic Organics	22.6
Vinyl Chloride	Toxic Organics	22.6
Dimethyl Phthalate	Pesticides	22.6
Acrolein	Pesticides	22.6
2,4,5-Trichlorophenol	Pesticides	22.6
2,4,6-Trichlorophenol	Toxic Organics	22.6
Unknown Toxicity	Total Toxics	22.6
1,2-Dichloroethane	Pesticides	22.6
Benzene	Toxic Organics	22.6
N-Nitrosodiphenylamine	Toxic Organics	22.6
Dichlorobenzene (Mixed Isomers)	Toxic Organics	22.6
Carbon Tetrachloride	Toxic Organics	22.6
2,4-Dichlorophenol	Toxic Organics	22.6
Hexachlorocyclopentadiene	Toxic Organics	22.6
Heavy Metals	Metals (other than Mercury)	22.6
1,1,2-Trichloroethane	Toxic Organics	22.6
Chlorobenzene (Mono)	Toxic Organics	22.6
Hexachloroethane	Toxic Organics	22.6
Excessive Aquatic Plants	Noxious Aquatic Plants	22.6
2,2'-Dichlorodiisopropyl Ether	Toxic Organics	22.6
Other Inorganics	Toxic Inorganics	22.6
Nitrobenzene	Toxic Organics	22.6
Toluene	Toxic Organics	22.6
Chloroform	Toxic Organics	22.6
Hexachlorobenzene	Pesticides	22.6
1,1,2,2-Tetrachloroethane	Toxic Organics	22.6
2,2'-Dichlorodiethyl Ether	Toxic Organics	22.6
2,4-Dinitrotoluene	Toxic Organics	22.6
Beta-BHC	Pesticides	22.6
Alachlor	Pesticides	10.1
Phenanthrene	Toxic Organics	8.5
Naphthalene	Pesticides	8.5
Enterococcus Bacteria	Pathogens	1.3

Designated Use	Acres Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Aesthetic Quality	92,907.4	1.7	.0	98.3
Anadromous Fish Passage	97,054.1	1.5	.0	98.5
Aquatic Life	5,942.3	97.8	.0	2.2
Cold-Water Aquatic Life	6,427.2	53.4	.0	46.6
Cool-Water Aquatic Life	2,001.5	.0	.0	100.0
Fishing	212.3	.0	.0	100.0
Human Health	3,436.6	100.0	.0	.0
Resident Fish And Aquatic Life	105,044.1	2.1	.0	97.9
Water Contact Recreation	9,357.0	15.9	.0	84.1

Cause of Impairment	Cause of Impairment Group	Acres Threatened or Impaired
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	83,135.4
Habitat Alterations (Other Than Flow)	Habitat Alterations	83,072.2
Sedimentation/Siltation	Sediment	80,691.8
pH	pH/Acidity/Caustic Conditions	78,785.1
Chlorophyll-A	Algal Growth	77,902.1
Temperature, Water	Temperature	68,021.1
Nutrients	Nutrients	19,112.3
Aquatic Algae	Algal Growth	19,012.5
Mercury	Mercury	16,716.6
Nutrients - Eutrophication	Nutrients	11,686.6
Dieldrin	Pesticides	10,452.4
Turbidity	Turbidity	7,870.4
Escherichia Coli (E. Coli)	Pathogens	7,870.4
Fecal Coliform	Pathogens	7,870.4
2,3,7,8-Tetrachlorodibenzofuran	Dioxins	1,041.1
Metals (other than Mercury)	Metals (other than Mercury)	829.4
Phosphorus, Elemental	Nutrients	690.7
Nitrates	Nutrients	308.3
Copper	Metals (other than Mercury)	130.1
Zinc	Metals (other than Mercury)	130.1
Phosphate	Nutrients	130.1
Alkalinity, Carbonate as CaCO3	pH/Acidity/Caustic Conditions	130.1
Iron	Metals (other than Mercury)	130.1
Lead	Metals (other than Mercury)	130.1
Cadmium	Metals (other than Mercury)	130.1
Selenium	Metals (other than Mercury)	130.1
Silver	Metals (other than Mercury)	130.1
Chromium, Hexavalent	Metals (other than Mercury)	130.1
Chloride	Salinity/Total Dissolved Solids/Chlorides/Sulfates	130.1
Nickel	Metals (other than Mercury)	130.1
Ammonia, Total	Ammonia	130.1
Trivalent Arsenic (Arsenic III)	Metals (other than Mercury)	130.1

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)	Coastal Shoreline (Miles)
Algal Growth	1,004.1	92,136.5
Ammonia	998.4	130.1
Cause Unknown - Impaired Biota	33.8
Chlorine	55.3
Dioxins	667.9	1,041.1
Flow Alteration(s)	238.6
Habitat Alterations	677.2	83,072.2
Mercury	882.3	16,716.6
Metals (other than Mercury)	2,453.4	959.5
Noxious Aquatic Plants	22.6
Nutrients	16,077.4	31,098.6
Organic Enrichment/Oxygen Depletion	4,798.5	83,135.4
Other Cause	275.5
Pathogens	3,469.4	7,870.4	4.0
Pesticides	825.6	10,452.4
pH/Acidity/Caustic Conditions	6,021.9	78,915.3
Polychlorinated Biphenyls (PCBs)	328.3
Radiation	241.4
Salinity/Total Dissolved Solids/Chlorides/Sulfates	753.2	130.1
Sediment	11,996.5	80,691.8
Temperature	17,253.1	68,021.1
Total Toxics	22.6
Toxic Inorganics	509.0
Toxic Organics	974.6
Turbidity	252.3	7,870.4

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.
Temperature	1,029
Pathogens	196
Metals (other than Mercury)	155
Organic Enrichment/Oxygen Depletion	103
Sediment	60
pH/Acidity/Caustic Conditions	46
Algal Growth	35
Pesticides	33
Mercury	25
Cause Unknown - Impaired Biota	21
Toxic Organics	9
Polychlorinated Biphenyls (PCBs)	8
Ammonia	4
Turbidity	4
Nutrients	3
Other Cause	1

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.
Temperature	817	817
Escherichia Coli (E. Coli)	117	117
Bacteria	81	81
Sedimentation	39	39
Dissolved Oxygen	35	35
pH	19	19
Phosphorus, Total	13	17
Chlorophyll-A	11	11
Inorganic Phosphorus	10	10
Mercury	10	10
Total Dissolved Gas	10	10
Biochemical Oxygen Demand (BOD)	8	16
Nitrogen, Total	7	14
Sediment	7	7
Fecal Coliform	6	6
Aquatic Weeds or Algae	5	5
Inorganic Nitrogen	5	5
DDT	4	4
Dieldrin	4	4
Phosphorus	4	4
Turbidity	4	4
Nitrate	3	3
Nutrients	3	3
Pesticides	3	6
Ammonia	2	2
DDD	2	2
DDE	2	2
Iron	2	2
Nuisance Exotic Species	2	2
Algal Growth/Chlorophyll A	1	1
Ammonia Nitrogen	1	1
Dioxins	1	1
Lead	1	1
Polychlorinated Biphenyls (PCBs)	1	1
Sediment Oxygen Demand	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.
1996	5	5
1999	11	11
2000	73	73
2001	190	190
2002	67	67
2003	49	49
2004	41	41
2005	21	21
2006	207	207
2007	192	192
2008	32	32
2009	147	150
2010	37	37
2011	156	156
2012	13	32

Fiscal Year	Number of TMDLs	Number of Causes of Impairment Addressed
NOTE:Click on the underlined "Number of TMDLs" value for a detailed list of the TMDLs for the fiscal year.
2005	9	10