USGS

Water Quality in the Willamette Basin, Oregon, 1991-95

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SUMMARY OF COMPOUND DETECTIONS AND CONCENTRATIONS

The following tables summarize data collected for NAWQA studies during 1992-95 by showing results for the Willamette Basin Study Unit compared to the NAWQA national range for each compound detected. The data were collected at a wide variety of places and times. In order to represent the wide concentration ranges observed among Study Units, logarithmic scales are used to emphasize the general magnitude of concentrations (such as 10, 100, or 1,000), rather than the precise number. The complete data set used to construct these tables is available upon request. (The tables were designed and constructed by Sarah Ryker, Jonathon Scott, and Alan Haggland.)

  Water samples: Compounds detected || Compounds not detected

  Fish tissue and bed sediment samples: Compounds detected || Compounds not detected

Concentrations of herbicides, insecticides, volatile organic compounds, nutrients, and radon detected in ground and surface waters of the Willamette Basin Study Unit.

[mg/L, milligrams per liter; µg/L, micrograms per liter; pCi/L, picocuries per liter; %, percent; <, less than; - -, not measured; trade names may vary]

EXPLANATION

Colors and symbols representing water-quality criteria and NAWQA data

Herbicide
(Trade or common name)

Rate
of
detec-
tionb

Concentration, in µg/L
Rakescale: 0.001 - 1,000 ug/L

Alachlor (Lasso) 5%
0%

Atrazine (AAtrex) 85%
16%

Deethylatrazinec
(Atrazine metabolite)
38%
15%

Bentazon (Basagran,
bentazone)
4%
0%

Bromacil (Bromax) 2%
1%

Bromoxynil (Buctril) 1%
0%

Butylate (Sultan +,
butilate)
<1%
0%

Cyanazine (Bladex) 1%
0%

2,4-D (Dacamine,
Weedar 64)
12%
0%

DCPA (Dacthal,
chlorthal-dimethyl)
10%
<1%

Dicamba (Banvel) 2%
0%

Dinoseb (DNBP,
dinosebe)
5%
1%

Diuron (Karmex) 53%
3%

EPTC (Eptam,
Eradicane)
17%
0%

Linuron (Lorox,
Linex)
1%
0%

MCPA 4%
0%

Herbicide
(Trade or common name)

Rate
of
detec-
tionb

Concentration, in µg/L
Rakescale: 0.001 - 1,000 ug/L

Metolachlor (Dual,
Pennant, Goal)
62%
3%

Metribuzin (Lexone,
Sencor
19%
0%

Napropamide (Devrinol) 26%
0%

Norflurazon (Evital,
Solicam)
2%
0%

Oryzalin (Surflan) 1%
0%

Pendimethalin (Prowl) 4%
0%

Prometon (Pramitol,
prometone)
19%
0%

Pronamide (Kerb,
propyzamid)
9%
0%

Propachlor (Ramrod,
propachlore)
1%
<1%

Propanil (Stampede,
Prostar
<1%
1%

Simazine (Princep) 77%
5%

Tebuthiuron (Spike) 15%
0%

Terbacilc (Sinbar) 24%
1%

Triallate (Far-GO) <1%
<1%

Triclopyr (Garlon,
Crossbow)
9%
0%

Trifluralin (Treflan) 4%
0%

 

Insecticide
(Trade or common name)

Rate
of
detec-
tionb

Concentration, in µg/L
Rakescale: 0.001 - 1,000 ug/L

Azinphos-methylc
(Guthion)
3%
0%

Carbarylc (Sevin) 18%
0%

Carbofuranc (Furadan) 29%
0%

Chlorpyrifos (Dursban,
Lorsban)
21%
0%

p,p'-DDE (p,p'
-DDT metabolite)
<1%
<1%

Diazinon 35%
0%

Dieldrin 1%
1%

Ethoprop (Mocap,
ethoprophos)
15%
0%

Insecticide
(Trade or common name)

Rate
of
detec-
tionb

Concentration, in µg/L
Rakescale: 0.001 - 1,000 ug/L

Fonofos (Dyfonate) 12%
0%

gamma-HCH (Lindane,
gamma-BHC)
4%
0%

Malathion (malathon,
Cythion)
5%
0%

Methiocarb (Grandslam) 1%
0%

Oxamyl (Vydate,
oxamil)
1%
0%

cis-Permethrinc
(Pounce)
1%
0%

Propargite (Omite,
Comite)
<1%
0%

Terbufos (Counter) 0%
<1%

 

Volatile organic compound
(Trade or common name)

Rate
of
detec-
tionb

Concentration, in µg/L
Rakescale: 0.01 - 1,000 ug/L

1,1,1-Trichloroethane
Methylchloroform
--
8%

1,1-Dichloroethene
(Vinylidene chloride)
--
1%

Tetrachloromethane
(Carbon tetrachloride)
--
1%

total Trihalomethanes --
12%

Trichloroethene (TCE) --
8%

Trichlorofluoromethane (CFC 11, Freon 11) --
1%

Nutrient
(Trade or common name)

Rate of
detectionb

Concentration, in mg/L
Rakescale: 0.01 - 100,000 mg/L

Dissolved Ammonia 93%
86%

Dissolved ammonia plus
organic nitrogen as
nitrogen
53%
13%

Dissolved phosphorus as
phosphorus
91%
99%

Dissolved nitrite plus
nitrate
98%
71%

 

Volatile organic compound
(Trade or common name)

Rate of
detectionb

Concentration, in µg/L
Rakescale: 0.01 - 100,000 ug/L

Tetrachloroethene
(Perchloroethene, PCE)
--
12%

Other

Rate of
detectionb

Concentration, in pCi/L
Rakescale: 1 - 100,000 pCi/L

Radon 222 --
100%


Concentrations of semivolatile organic compounds, organochlorine compounds, and trace elements detected in fish and clam tissue and bed sediment of the Willamette Basin Study Unit.

[µg/g, micrograms per gram; µg/kg, micrograms per kilogram; %, percent; <, less than; - -, not measured; trade names may vary]

EXPLANATION

Colors and symbols representing water-quality criteria and NAWQA data

Semivolatile
organic compound

Rate
of
detec-
tionb

Concentration, in µg/kg dry weight
Rakescale: 0.1 - 100,000 ug/kg

1,2-Dimethylnaphthalene --
4%

1,6-Dimethylnaphthalene --
19%

1-Methyl-9H-fluorene --
4%

1-Methylphenanthrene --
15%

1-Methylpyrene --
15%

2,2-Biquinoline --
4%

2,3,6-Trimethylnaphthalene --
4%

2,6-Dimethylnaphthalene --
41%

2,6-Dinitrotoluene --
4%

2-Ethylnaphthalene --
4%

2-Methylanthracene --
7%

4,5-Methylene-
phenanthrene
--
22%

4-Chloro-3-methylphenol --
4%

9H-Carbazole --
15%

9H-Fluorene --
15%

Acenaphthene --
7%

Acenaphthylene --
19%

Acridine --
15%

Anthracene --
30%

Anthraquinone --
15%

Benz[a]anthracene --
33%

Semivolatile
organic compound

Rate
of
detec-
tionb

Concentration, in µg/kg dry weight

Rakescale: 0.1 - 100,000 ug/kg

Benzo[a]pyrene --
37%

Benzo[b]fluoranthene --
37%

Benzo[ghi]perylene --
30%

Benzo[k]fluoranthene --
37%

Butylbenzylphthalate --
52%

Chrysene --
37%

Di-n-butylphthalate --
96%

Di-n-octylphthalate --
4%

Dibenz[a,h]anthracene --
15%

Dibenzothiophene --
11%

Diethylphthalate --
41%

Dimethylphthalate --
11%

Fluoranthene --
56%

Indeno[1,2,3-cd]pyrene --
33%

Naphthalene --
4%

Phenanthrene --
44%

Phenanthridine --
7%

Phenol --
67%

Pyrene --
52%

bis(2-Ethyl-hexyl)phthalate --
93%

p-Cresol --
52%

 

Organochlorine
compound
(Trade name)

Rate
of
detec-
tionb

Concentration, in µg/kg wet weight (tissue)
Concentration, in µg/kg dry weight (sediment)
Rakescale: 0.01 - 100,000 ug/kg

Aldrin 0%
3%

total-Chlordanec 45%
28%

p,p'DDEf (p,p'-DDT metabolite) 64%
52%

total-DDTf 64%
55%

Dieldrin 36%
31%

Endosulfan I (alpha-
endosulfan, Thiodan)
--
3%

gamma-HCH (Lindane,
gamma-BHC)
5%
7%

Heptachlor epoxide
(heptachlor metabolite)
0%
3%

Hexachlorobenzene 5%
--

p,p'-Methoxychlor
(Marlate)
0%
3

Pentachloroanisole 9%
0%

Trace
element

Rate
of
detec-
tionb

Concentration, in µg/g dry weight

Rakescale: 0.01 - 10,000 ug/g

Arsenic 65%
100%

Cadmium 20%
100%

Chromium 90%
100%

Copper 100%
100%

Lead 25%
88%

Mercury 50%
82%

Nickel 90%
100%

Selenium 40%
100%

Zinc 100%
100%


Herbicides, insecticides, volatile organic compounds, and nutrients not detected in ground and surface waters of the Willamette Basin Study Unit.

Herbicides

2,4,5-T
2,4,5-TP (Silvex, Fenoprop)
2,4-DB (Butyrac, Butoxone, Embutox Plus, Embutone)
2,6-Diethylaniline (Metabolite of Alachlor)
Acetochlor (Harness Plus, Surpass)
Acifluorfen (Blazer, Tackle 2S)
Benfluralin (Balan, Benefin, Bonalan, Benefex)
Chloramben (Amiben, Amilon-WP, Vegiben)
Clopyralid (Stinger, Lontrel, Reclaim, Transline)
Dacthal mono-acid (Dacthal metabolite)
Dichlorprop (2,4-DP, Seritox 50, Kildip, Lentemul)
Ethalfluralin (Sonalan, Curbit)
Fenuron (Fenulon, Fenidim)
Fluometuron (Flo-Met, Cotoran, Cottonex, Meturon)
MCPB (Thistrol)
Molinate (Ordram)
Neburon (Neburea, Neburyl, Noruben)
Pebulate (Tillam, PEBC)
Picloram (Grazon, Tordon)
Propham (Tuberite)
Thiobencarb (Bolero, Saturn, Benthiocarb, Abolish)

Insecticides

3-Hydroxycarbofuran (Carbofuran metabolite)
Aldicarb (Temik, Ambush, Pounce)
Aldicarb sulfone (Standak, aldoxycarb, aldicarb metabolite)
Aldicarb sulfoxide (Aldicarb metabolite)
Disulfoton (Disyston, Di-Syston, Frumin AL, Solvirex, Ethylthiodemeton)
Methomyl (Lanox, Lannate, Acinate)
Methyl parathion (Penncap-M, Folidol-M, Metacide, Bladan M)
Parathion (Roethyl-P, Alkron, Panthion, Phoskil)
Phorate (Thimet, Granutox, Geomet, Rampart)
Propoxur (Baygon, Blattanex, Unden, Proprotox)
alpha-HCH (alpha-BHC, alpha-lindane, alpha-hexachlorocyclohexane, alpha-benzene hexachloride)

Volatile organic compounds

1,1,1,2-Tetrachloroethane (1,1,1,2-TeCA)
1,1,2,2-Tetrachloroethane
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113, CFC 113)
1,1,2-Trichloroethane (Vinyl trichloride)
1,1-Dichloroethane (Ethylidene dichloride)
1,1-Dichloropropene
1,2,3-Trichlorobenzene (1,2,3-TCB)
1,2,3-Trichloropropane (Allyl trichloride)
1,2,4-Trichlorobenzene
1,2,4-Trimethylbenzene (Pseudocumene)
1,2-Dibromo-3-chloropropane (DBCP, Nemagon)
1,2-Dibromoethane (EDB, Ethylene dibromide)
1,2-Dichlorobenzene (o-Dichlorobenzene, 1,2-DCB)
1,2-Dichloroethane (Ethylene dichloride)
1,2-Dichloropropane (Propylene dichloride)
1,3,5-Trimethylbenzene (Mesitylene)
1,3-Dichlorobenzene (m-Dichlorobenzene)
1,3-Dichloropropane (Trimethylene dichloride)
1,4-Dichlorobenzene (p-Dichlorobenzene, 1,4-DCB)
1-Chloro-2-methylbenzene (o-Chlorotoluene)
1-Chloro-4-methylbenzene (p-Chlorotoluene)
2,2-Dichloropropane
Benzene
Bromobenzene (Phenyl bromide)
Bromochloromethane (Methylene chlorobromide)
Bromomethane (Methyl bromide)
Chlorobenzene (Monochlorobenzene)
Chloroethane (Ethyl chloride)
Chloroethene (Vinyl chloride)
Chloromethane (Methyl chloride)
Dibromomethane (Methylene dibromide)
Dichlorodifluoromethane (CFC 12, Freon 12)
Dichloromethane (Methylene chloride)
Dimethylbenzenes (Xylenes (total))
Ethenylbenzene (Styrene)
Ethylbenzene (Phenylethane)
Hexachlorobutadiene
Isopropylbenzene (Cumene)
Methyl tert-butyl ether (MTBE)
Methylbenzene (Toluene)
Naphthalene
cis-1,2-Dichloroethene ((Z)-1,2-Dichloroethene)
cis-1,3-Dichloropropene ((Z)-1,3-Dichloropropene)
n-Butylbenzene (1-Phenylbutane)
n-Propylbenzene (Isocumene)
p-Isopropyltoluene (p-Cymene)
sec-Butylbenzene
tert-Butylbenzene
trans-1,2-Dichloroethene ((E)-1,2-Dichlorothene)
trans-1,3-Dichloropropene ((E)-1,3-Dichloropropene)

Nutrients

No non-detects


Semivolatile organic compounds, organochlorine compounds, and trace elements not detected in fish and clam tissue and bed sediment of the Willamette Basin Study Unit.

Semivolatile organic compounds

1,2,4-Trichlorobenzene
1,2-Dichlorobenzene (o-Dichlorobenzene, 1,2-DCB)
1,3-Dichlorobenzene (m-Dichlorobenzene)
1,4-Dichlorobenzene (p-Dichlorobenzene, 1,4-DCB)
2,4-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
3,5-Dimethylphenol
4-Bromophenyl-phenylether
4-Chlorophenyl-phenylether
Azobenzene
Benzo [c] cinnoline
C8-Alkylphenol
Isophorone
Isoquinoline
N-Nitrosodi-n-propylamine
N-Nitrosodiphenylamine
Nitrobenzene
Pentachloronitrobenzene
Quinoline
bis (2-Chloroethoxy)methane

Organochlorine compounds

Chloroneb (chloronebe, Demosan, Soil Fungicide 1823)
DCPA (Dacthal, chlorthal-dimethyl)
Endrin (Endrine)
Heptachlor (Heptachlore, Velsicol 104)
Isodrin (Isodrine, Compound 711)
Mirex (Dechlorane)
Toxaphene (Camphechlor, Hercules 3956)
alpha-HCH (alpha-BHC, alpha-lindane, alpha-hexachlorocyclohexane, alpha-benzene hexachloride)
beta-HCH (beta-BHC, beta-hexachlorocyclohexane, alpha-benzene hexachloride)
cis-Permethrin (Ambush, Astro, Pounce, Pramex, Pertox, Ambushfog, Kafil, Perthrine, Picket, Picket G, Dragnet, Talcord, Outflank, Stockade, Eksmin, Coopex, Peregin, Stomoxin, Stomoxin P, Qamlin, Corsair, Tornade)
delta-HCH (delta-BHC, delta-hexachlorocyclohexane, delta-benzene hexachloride)
o,p'-Methoxychlor
trans-Permethrin (Ambush, Astro, Pounce, Pramex, Pertox, Ambushfog, Kafil, Perthrine, Picket, Picket G, Dragnet, Talcord, Outflank, Stockade, Eksmin, Coopex, Peregin, Stomoxin, Stomoxin P, Qamlin, Corsair, Tornade)

Trace elements

No non-detects


a Selected water quality standards and guidelines (Gilliom and others, in press).

b Rates of detection are based on the number of analyses and detections in the Study Unit, not on national data. Rates of detection for herbicides and insecticides were computed by only counting detections equal to or greater than 0.01 mg/L in order to facilitate equal comparisons among compounds, which had widely varying detection limits. For herbicides and insecticides, a detection rate of "<1%" means that all detections are less than 0.01 mg/L, or the detection rate rounds to less than one percent. For other compound groups, all detections were counted and minimum detection limits for most compounds were similar to the lower end of the national ranges shown. Method detection limits for all compounds in these tables are summarized in (Gilliom and others, in press).

c Detections of these compounds are reliable, but concentrations are determined with greater uncertainty than for the other compounds and are reported as estimated values (Zaugg and others, 1995).

d Selected sediment quality guidelines (Gilliom and others, in press).

e Total-chlordane includes chlordane, cis-chlordane, trans-chlordane, cis-nonachlor, trans-nonachlor, and oxychlordane.

f Total-DDT includes o,p'-DDT, p,p'-DDT, o,p'-DDE, p,p'-DDE, o,p'-DDD, and p,p'-DDD; p,p'-DDE also is presented separately.


U.S. Geological Survey Circular 1161

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Suggested citation:
Wentz, D.A., Bonn, B.A., Carpenter, K.D., Hinkle, S.R., Janet, M.L., Rinella, F.A., Uhrich, M.A., Waite, I.R., Laenen, A., and Bencala, K.E., 1998, Water Quality in the Willamette Basin, Oregon, 1991-95: U.S. Geological Survey Circular 1161, on line at <URL: http://water.usgs.gov/pubs/circ1161>, updated June 25, 1998 .

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Last modified: Mon Aug 17 15:53:50 1998