Water Quality in the Georgia-Florida Coastal Plain, Georgia and Florida, 1992-96

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Summary of Compound Detections and Concentrations

The following tables summarize data collected for NAWQA studies from 1992-1995 by showing results for the Georgia-Florida Coastal Plain 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 1000), rather than the precise number. The complete dataset used to construct these tables is available upon request.

Water samples: Compounds detected || Compounds not detected

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

Concentrations of herbicides, insecticides, volatile organic compounds, and nutrients detected in ground and surface waters of the Georgia-Florida Coastal Plain 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

	Freshwater-chronic criterion for the protection of aquatic life ^a Drinking water standard or guideline ^a Range of surface-water detections in all 20 NAWQA Study Units Range of ground-water detections in all 20 NAWQA Study Units Detection in the Georgia-Florida Coastal Plain Study Unit

Herbicide (Trade or common name)	Rate of detec- tion^b	Concentration, in µg/L
Alachlor (Lasso)	1% 1%
2,6-Diethylaniline (Alachlor metabolite)	<1% 0%
Atrazine (AAtrex, Gesaprim)	53% 3%
Deethylatrazine^c (Atrazine metabolite)	4% 3%
Benfluralin (Balan, Benefin, Bonalan)	<1% 0%
Bentazon (Basagran, bentazone)	1% 4%
Bromacil (Hyvar X, Urox B, Bromax)	2% 5%
Butylate (Sutan, Genate Plus, butilate)	<1% 0%
Cyanazine (Bladex, Fortrol)	19% 2%
2,4-D (2,4-PA)	1% 0%
2,4-DB (Butyrac, Embutox)	<1% 0%
DCPA (Dacthal, chlorthal-dimethyl)	1% 0%
Diuron (Karmex, Direx, DCMU)	4% 2%
EPTC (Eptam)	<1% 0%
Ethalfluralin (Sonalan, Sonalen)	1% 0%
Fenuron (Beet-Kleen, Dybar; Vrab)	0% 1%
Fluometuron (Flo-Met, Cotoran)	6% 3%
Linuron (Lorox, Linex, Sarclex)	<1% 0%

Herbicide (Trade or common name)	Rate of detec- tion^b	Concentration, in µg/L
Metolachlor (Dual, Pennant)	42% 9%
Metribuzin (Lexone, Sencor)	1% 1%
Molinate (Ordram)	<1% 0%
Napropamide (Devrinol)	<1% 0%
Norflurazon (Evital, Solicam, Telok)	2% 2%
Pebulate (Tillam)	<1% 0%
Pendimethalin (Prowl, Stomp)	1% 1%
Prometon (Gesa-gram, prometone)	31% 6%
Pronamide (Kerb, propyzamid)	1% 0%
Propachlor (Ramrod, propachlore)	<1% <1%
Propanil (Stampede, Surcopur)	<1% 2%
Simazine (Aquazine, Princep)	25% 2%
Tebuthiuron (Spike, Perflan)	19% 2%
Terbacil^c (Sinbar)	1% 0%
Thiobencarb (Bolero, Saturn)	<1% 0%
Triallate (Far-Go)	<1% 0%
Trifluralin (Treflan, Trinin, Elancolan)	1% 0%

Insecticide (Trade or common name)	Rate of detec- tion^b	Concentration, in µg/L
Aldicarb sulfoxide^c (Aldicarb metabolite)	<1% 1%
Azinphos-methyl^c (Guthion, Gusathion)	1% 0%
Carbaryl^c (Sevin, Savit)	11% 0%
Carbofuran^c (Furadan, Curaterr)	1% 0%
Chlorpyrifos (Dursban, Lorsban)	7% 0%
p,p'-DDE (p,p'-DDT metabolite)	<1% <1%
Diazinon	20% 0%
Dieldrin (Panoram D-31, Octalox)	<1% 0%
Disulfoton^c (Disyston, Dithiosystox)	<1% 0%
Ethoprop (Mocap, Prophos)	1% 0%
Ethoprop (Mocap, Prophos)	1% 0%

Insecticide (Trade or common name)	Rate of detec- tion^b	Concentration, in µg/L
Fonofos (Dyfonate)	<1% 0%
alpha-HCH (alpha-BHC, alpha-lindane)	<1% 0%
gamma-HCH	1% 0%
Malathion (maldison, malathon, Cythion)	6% 0%
Parathion (Thiophos, Bladan, Folidol)	<1% 0%
cis-Permethrin^c (Ambush, Pounce)	<1% 0%
Phorate (Thimet, Rampart)	<1% 0%
Propargite (Comite, Omite, BPPS)	<1% 0%
Terbufos (Counter)	<1% 0%

Volatile organic compound (Trade or common name)	Rate of detec- tion^b	Concentration, in µg/L
1,2-Dibromoethane (EDB, ethylene dibromide)	-- 1%
1,2-Dichloropropane (Propylene dichloride)	-- 1%
Benzene	-- 1%
Bromomethane (Methyl bromide)	-- 1%
Chloromethane (Methyl chloride)	-- 3%
Methylbenzene (Toluene)	-- 5%
total Trihalomethanes	-- 6%
Trichloroethene (TCE)	-- 1%
cis-1,2-Dichloroethene	-- 2%

Volatile organic compound (Trade or common name)	Rate of detection^b	Concentration, in µg/L
Methyl tert-butyl ether^d (MTBE)	-- 3%
Tetrachloroethene (Perchloroethene)	-- 4%

Nutrient (Trade or common name)	Rate of detection^b	Concentration, in mg/L
Dissolved ammonia	87% 58%
Dissolved ammonia plus organic nitrogen as nitrogen	82% 14%
Dissolved phosphorus as phosphorus	83% 59%
Dissolved nitrite plus nitrate	72% 81%

Other	Rate of detection^b	Concentration, in pCi/L
Radon 222	-- 100%

Herbicides, insecticides, volatile organic compounds, and nutrients not detected in ground and surface waters of the Georgia-Florida Coastal Plain Study Unit.

Herbicides

2,4,5-T
2,4,5-TP (Silvex, Fenoprop)
Acetochlor (Harness Plus, Surpass)
Acifluorfen (Blazer, Tackle 2S)
Bromoxynil (Buctril, Brominal)
Chloramben (Amiben, Amilon-WP, Vegiben)
Clopyralid (Stinger, Lontrel, Reclaim, Transline)
Dacthal mono-acid (Dacthal metabolite)
Dicamba (Banvel, Dianat, Scotts Proturf)
Dichlorprop (2,4-DP, Seritox 50, Kildip, Lentemul)
Dinoseb (Dinosebe)
MCPA (Rhomene, Rhonox, Chiptox)
MCPB (Thistrol)
Neburon (Neburea, Neburyl, Noruben)
Oryzalin (Surflan, Dirimal)
Picloram (Grazon, Tordon)
Propham (Tuberite)
Triclopyr (Garlon, Grandstand, Redeem, Remedy)

Insecticides

3-Hydroxycarbofuran (Carbofuran metabolite)
Aldicarb sulfone (Standak, aldoxycarb, aldicarb metabolite)
Aldicarb (Temik, Ambush, Pounce)
Methiocarb (Slug-Geta, Grandslam, Mesurol)
Methomyl (Lanox, Lannate, Acinate)
Methyl parathion (Penncap-M, Folidol-M, Metacide, Bladan M)
Oxamyl (Vydate L, Pratt)
Propoxur (Baygon, Blattanex, Unden, Proprotox)

Volatile organic compounds

1,1,1,2-Tetrachloroethane (1,1,1,2-TeCA)
1,1,1-Trichloroethane (Methylchloroform)
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-Dichloroethene (Vinylidene chloride)
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-Dichlorobenzene (o-Dichlorobenzene, 1,2-DCB)
1,2-Dichloroethane (Ethylene 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
Bromobenzene (Phenyl bromide)
Bromochloromethane (Methylene chlorobromide)
Chlorobenzene (Monochlorobenzene)
Chloroethane (Ethyl chloride)
Chloroethene (Vinyl Chloride)
Dibromomethane (Methylene dibromide)
Dichlorodifluoromethane (CFC 12, Freon 12)
Dichloromethane (Methylene chloride)
Dimethylbenzenes (Xylenes (total))
Ethenylbenzene (Styrene)
Ethylbenzene (Phenylethane)
Hexachlorobutadiene
Isopropylbenzene (Cumene)
Naphthalene
Tetrachloromethane (Carbon tetrachloride)
Trichlorofluoromethane (CFC 11, Freon 11)
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

Concentrations of semivolatile organic compounds, organochlorine compounds, and trace elements detected in clam tissue and bed sediment of the Georgia-Florida Coastal Plain Study Unit. Clam tissue compared to fish and clam tissue in other Study Units.

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

EXPLANATION

Guideline for the protection of aquatic life^e
	Range of detections in fish and clam tissue in all 20 NAWQA Study Units Range of detections in bed sediment in all 20 NAWQA Study Units Detection in bed sediment in the Georgia-Florida Coastal Plain Study Unit Detection in clam tissue in the Georgia-Florida Coastal Plain Study Unit

Semivolatile organic compound	Rate of detec- tion^b	Concentration, in µg/kg
1,2-Dimethylnaphthalene	-- 7%
1,6-Dimethylnaphthalene	-- 19%
1-Methyl-9H-fluorene	-- 5%
1-Methylphenanthrene	-- 26%
1-Methylpyrene	-- 24%
2,2-Biquinoline	-- 3%
2,3,6-Trimethylnaphthalene	-- 9%
2,6-Dimethylnaphthalene	-- 52%
2-Ethylnaphthalene	-- 7%
2-Methylanthracene	-- 19%
3,5-Dimethylphenol	-- 2%
4,5-Methylenephenanthrene	-- 28%
4-Chlorophenyl-phenylether	-- 2%
9H-Carbazole	-- 21%
9H-Fluorene	-- 24%
Acenaphthene	-- 28%
Acenaphthylene	-- 43%
Acridine	-- 12%
Anthracene	-- 45%
Anthraquinone	-- 22%
Benz[ a ]anthracene	-- 55%
Benzo[ a ]pyrene	-- 40%
Benzo[ b ]fluoranthene	-- 57%

Semivolatile organic compound	Rate of detec- tion^b	Concentration, in µg/kg
Benzo[ c ]cinnoline	-- 5%
Benzo[ ghi ]perylene	-- 19%
Benzo[ k ]fluoranthene	-- 57%
Butylbenzylphthalate	-- 34%
Chrysene	-- 57%
Di- n -butylphthalate	-- 91%
Di- n -octylphthalate	-- 24%
Dibenz[ a,h ] anthracene	-- 12%
Dibenzothiophene	-- 12%
Diethylphthalate	-- 47%
Dimethylphthalate	-- 12%
Fluoranthene	-- 67%
Indeno[1,2,3- cd ] pyrene	-- 26%
Isoquinoline	-- 12%
Naphthalene	-- 14%
N-Nitrosodiphenylamine	-- 2%
Pentachloronitrobenzene	-- 2%
Phenanthrene	-- 48%
Phenol	-- 72%
Pyrene	-- 59%
bis(2-Ethylhexyl)phthalate	-- 90%
p-Cresol	-- 62%

Organochlorine compound (Trade name)	Rate of detec- tion^b	Concentration, in µg/kg
total-Chlordane	7% 26%
DCPA (dacthal, chlorthal-dimethyl)	0% 2%
p,p'-DDE	21% 45%
total-DDT	21% 49%
Dieldrin (Panoram D-31, Octalox)	0% 10%
Endosulfan I (alpha-endosulfan, Thiodan)	-- 3%
Heptachlor epoxide	0% 3%
Mirex (Dechlorane)	3% 22%
PCB, total	0% 2%

Trace element	Rate of detec- tion^b	Concentration, in µg/g
Arsenic	97% 100%
Cadmium	75% 100%
Chromium	100% 100%
Copper	100% 100%
Lead	53% 100%
Mercury	81% 100%
Nickel	75% 100%
Selenium	62% 100%
Zinc	100% 100%

Semivolatile organic compounds, organochlorine compounds, and trace elements not detected in clam tissue and bed sediment of the Georgia-Florida Coastal Plain 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
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
4-Bromophenyl-phenylether
4-Chloro-3-methylphenol
Azobenzene
C8-Alkylphenol
Isophorone
N-Nitrosodi-n-propylamine
Nitrobenzene
Phenanthridine
Quinoline
bis (2-Chloroethoxy)methane

Organochlorine compounds

Aldrin (HHDN, Octalene)
Chloroneb (chloronebe, Demosan, Soil Fungicide 1823)
Endrin (Endrine)
Heptachlor (Heptachlore, Velsicol 104)
Hexachlorobenzene (HCB)
Isodrin (Isodrine, Compound 711)
Pentachloroanisole (PCA, pentachlorophenol metabolite)
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)
gamma-HCH (Lindane, gamma-BHC, Gammexane, Gexane, Soprocide, gamma-hexachlorocyclohexane, gamma-benzene hexachloride, gamma-benzene)
o,p'-Methoxychlor
p,p'-Methoxychlor (Marlate, methoxychlore)
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 µg/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 µg/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 [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 The guideline for methyl tert-butyl ether is between 20 and 40 µg/L; if the tentative cancer classification C is accepted, the lifetime health advisory will be 20 µg/L [Gilliom and others, in press].

^e Selected sediment-quality guidelines [Gilliom and others, in press].

U.S. Geological Survey Circular 1151

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Suggested citation:
Berndt, M.P., Hatzell, H.H., Crandall, C.A., Turtora, M., Pittman, J.R., and Oaksford, E.T., 1998, Water Quality in the Georgia-Florida Coastal Plain, Georgia and Florida, 1992-96: U.S. Geological Survey Circular 1151, on line at <URL: https://water.usgs.gov/pubs/circ1151>, updated April 14, 1998 .

This page is a subpage of <URL:http://water.usgs.gov/pubs/circ1151>
Email questions and comments to nawqa_gafl@usgs.gov
Last modified: April 14, 1998 10:45 am