| SOURCE | HEALTH, ENVIRONMENTAL, OR AESTHETIC CONTAMINANT1,2,3 |
| NATURALLY OCCURRING SOURCES |
|
| Rocks and soils (0001) |
Aesthetic Contaminants: Iron and iron bacteria; manganese; calcium and magnesium (hardness) Health and Environmental Contaminants: Arsenic; asbestos; metals; chlorides (fluorides, sulfates); sulfate-reducing bacteria; other microorganisms |
| Water (0002) | Excessive sodium; bacteria; viruses; low pH (acid) water |
| Decaying organic matter, Bacteria (0003) | |
| Geological radioactive gas (0004) | Radionuclides (radon, etc.) |
| Natural hydrogeological events and formations (0005) | Salt-water/brackish water intrusion (or intrusion of other poor quality water); contamination by a variety of substances through sink-hole infiltration in limestone terrains |
| AGRICULTURAL SOURCES (K)5 | |
| Animal feedlots (0006) and burial areas (0007) | Livestock sewage wastes; nitrates; phosphates; chloride; chemical sprays and dips for controlling insect, bacterial, viral, and fungal pests on livestock; coliform6 and noncoliform bacteria; viruses |
| Manure spreading areas (0008) and storage pits (0009) | Livestock sewage wastes; nitrates |
| Livestock waste disposal areas (0010) | Livestock sewage wastes; nitrates |
| Crop areas and irrigation sites (0011) | Pesticides;7 fertilizers;8 gasoline and motor oils from chemical applicators |
| Chemical storage areas and containers (0012) | Pesticide7 and fertilizer8 residues |
| Farm machinery areas (0013) | Automotive wastes;9 welding wastes |
| Agricultural drainage wells (0014) and canals (0015) | Pesticides;7 fertilizers;8 bacteria; salt water (in areas where the fresh-saltwater interface lies at shallow depths and where the water table is lowered by channelization, pumping, or other causes) |
| RESIDENTIAL SOURCES (D) | |
| Common household maintenance and hobbies (0016) |
Common Household Products:10 Household cleaners; oven cleaners; drain cleaners; toilet cleaners; disinfectants; metal polishes; jewelry cleaners; shoe polishes; synthetic detergents; bleach; laundry soil and stain removers; spot removers and dry cleaning fluid; solvents; lye or caustic soda; household pesticides;11; photochemicals; printing ink; other common products; Wall and Furniture Treatments: Paints; varnishes; stains; dyes; wood preservatives (creosote); paint and lacquer thinners; paint and varnish removers and deglossers; paint brush cleaners; floor and furniture strippers; Mechanical Repair and Other Maintenance Products: Automotive wastes;9 waste oil; diesel fuel; kerosene; #2 heating oil; grease; degreasers for driveways and garages; metal degreasers; asphalt and roofing tar; tar removers; lubricants; rustproofers; car wash detergents; car waxes and polishes; rock salt; refrigerants |
| Lawns and gardens (0017) | Fertilizers;7 herbicides and other pesticides used for lawn and garden maintenance12 |
| Swimming pools (0018) | Swimming pool maintenance chemicals13 |
| Septic systems (0019), cesspools (0020), and sewer lines (0021) | Septage; coliform and noncoliform bacteria;6 viruses; nitrates; heavy metals; synthetic detergents; cooking and motor oils; bleach; pesticides;11, 12 paints; paint thinner; photographic chemicals; swimming pool chemicals;11 septic tank/cesspool cleaner chemicals;14 elevated levels of chloride, sulfate, calcium, magnesium, potassium, and phosphate |
| Underground storage tanks (0022) | Home heating oil |
| Apartments and condominiums (0023) | Swimming pool maintenance chemicals;13 pesticides for lawn and garden maintenance and cockroach, termite, ant, rodent, and other pest control;11,12 wastes from on-site sewage treatment plants; household hazardous wastes10 |
| GOVERNMENT SOURCES (E) | |
| Schools (0024) and government offices and grounds (0025) | Solvents; pesticides;11,12 acids; alkalis; waste oils; machinery/vehicle servicing wastes; gasoline and heating oil from storage tanks; general building wastes15 |
| Park lands (0026) | Fertilizers;8 herbicides;12 insecticides11 |
| Public and residential areas infested with mosquitoes, gypsy moths, ticks, ants, or other pests (0027) | Pesticides7,11 |
| Highways, road maintenance depots, and deicing operations (0028) | Herbicides in highway rights-of-way;7,12 road salt (sodium and calcium chloride); road salt anticaking additives (ferric ferrocyanide, sodium ferrocyanide); road salt anticorrosives (phosphate and chromate); automotive wastes9 |
| Municipal sewage treatment plants and sewer lines (0029) | Municipal wastewater; sludge;16 treatment chemicals17 |
| Storage, treatment, and disposal ponds, lagoons, and other surface impoundments (0030) | Sewage wastewater; nitrates; other liquid wastes; microbiological contaminants |
| Land areas applied with wastewater or wastewater byproducts (0031) | Organic matter; nitrate; inorganic salts; heavy metals; coliform and noncoliform bacteria;6 viruses; nitrates; sludge;16 nonhazardous wastes18 |
| Storm water drains and basins (0032) | Urban runoff; gasoline; oil; other petroleum products; road salt; microbiological contaminants |
| Combined sewer overflows (municipal sewers and stormwater drains) (0033) | Municipal wastewater; sludge;16 treatment chemicals;17 urban runoff; gasoline; oil; other petroleum products; road salt; microbial contaminants |
| Recycling/reduction facilities (0034) | Residential and commercial solid waste residues |
| Municipal waste landfills (0035) | Leachate; organic and inorganic chemical contaminants; wastes from households10 and businesses;15 nitrates; oils; metals |
| Open dumping and burning sites (0036), closed dumps (0037) | Organic and inorganic chemicals; metals; oils; wastes from households10 and businesses15 |
| Municipal incinerators (0038) | Heavy metals; hydrocarbons; formaldehyde; methane; ethane; ethylene; acetylene; sulfur and nitrogen compounds |
| Water supply wells, monitoring wells, older wells, domestic and livestock wells (0039), unsealed and abandoned wells (0040), and test hole/wells (0041) | Surface runoff; effluents from barnyards, feedlots, septic tanks, or cesspools; gasoline; used motor oil; road salt |
| Sumps and dry wells (0042) | Storm water runoff; spilled liquids; used oil; antifreeze; gasoline; other petroleum products; road salt; pesticides;7 and a wide variety of other substances |
| Drainage wells (0043) | Pesticides;11,12 bacteria |
| Well pumping that causes interaquifer leakage, induced filtration, landward migration of sea water in coastal areas; etc. (0044) | Saltwater; excessively mineralized water |
| Artificial ground-water recharge (0045) | Storm water runoff; excess irrigation water; stream flow; cooling water; treated sewage effluent; other substances that may contain contaminants, such as nitrates, metals, detergents, synthetic organic compounds, bacteria, and viruses |
| COMMERCIAL SOURCES (C) | |
| Airports (0046), abandoned airfields (0047) | Jet fuels; deicers; diesel fuel; chlorinated solvents; automotive wastes;9 heating oil; building wastes15 |
| Auto repair shops (0048) | Waste oils; solvents; acids; paints; automotive wastes;9 miscellaneous cutting oils |
| Barber and beauty shops (0049) | Perm solutions; dyes; miscellaneous chemicals contained in hair rinses |
| Boat yards and marinas (0050) | Diesel fuels; oil; septage from boat waste disposal areas; wood preservative and treatment chemicals; paints; waxes; varnishes; automotive wastes9 |
| Bowling alleys (0051) | Epoxy; urethane-based floor finish |
| Car dealerships (especially those with service depts.) (0052) | Automotive wastes;9 waste oils; solvents; miscellaneous wastes |
| Car washes (0053) | Soaps; detergents; waxes; miscellaneous chemicals |
| Camp grounds (0054) | Septage; gasoline; diesel fuel from boats; pesticides for controlling mosquitoes, ants, ticks, gypsy moths, and other pests;7,11 household hazardous wastes from recreational vehicles (RVs)10 |
| Carpet stores (0055) | Glues and other adhesives; fuel from storage tanks if forklifts are used |
| Cemeteries (0056) | Leachate; lawn and garden maintenance chemicals12 |
| Construction trade areas and materials (plumbing, heating and air conditioning, painting, paper hanging, decorating, drywall and plastering, acoustical insulation, carpentry, flooring, roofing and sheet metal, wrecking and demolition, etc.) (0057) | Solvents; asbestos; paints; glues and other adhesives; waste insulation; lacquers; tars; sealants; epoxy waste; miscellaneous chemical wastes |
| Country clubs (0058) | Fertilizers;8 herbicides;7,12 pesticides for controlling mosquitoes, ticks, ants, gypsy moths, and other pests;11 swimming pools chemicals;13 automotive wastes |
| Dry cleaners (0059) | Solvents (perchloroethylene, petroleum solvents, Freon); spotting chemicals (trichloroethane, methylchloroform, ammonia, peroxides, hydrochloric acid, rust removers, amyl acetate) |
| Funeral services and crematories (0060) | Formaldehyde; wetting agents; fumigants; solvents |
| Furniture repair and finishing shops (0061) | Paints; solvents; degreasing and solvent recovery sludges |
| Gasoline services stations (0062) | Oils; solvents; miscellaneous wastes |
| Golf courses (0058) | Fertilizers;8 herbicides;7,12 pesticides for controlling mosquitoes, ticks, ants, gypsy moths, and other pests |
| Hardware/lumber/parts stores (0063) | Hazardous chemical products in inventories; heating oil and fork lift fuel from storage tanks; wood-staining and treating products such as creosote |
| Heating oil companies, underground/above ground storage tanks (0064) | Heating oil; wastes from truck maintenance areas9 |
| Horticultural practices, garden nurseries, florists (0065) | Herbicides, insecticides, fungicides, and other pesticides12 |
| Jewelry/metal plating shops (0066) | Sodium and hydrogen cyanide; metallic salts; hydrochloric acid; sulfuric acid; chromic acid |
| Laundromats (0067) | Detergents; bleaches; fabric dyes |
| Medical institutions (0068) | X-ray developers and fixers;19 infectious wastes; radiological wastes; biological wastes; disinfectants; asbestos; beryllium; dental acids; miscellaneous chemicals |
| Office buildings and office complexes (0069) | Building wastes;15 lawn and garden maintenance chemicals;12 gasoline; motor oil |
| Paint stores (0070) | Paints; paint thinners; lacquers; varnishes; other wood treatments |
| Pharmacies (0071) | Spilled and returned products |
| Photography shops, photo processing laboratories (0072) | Biosludges; silver sludges; cyanides; miscellaneous sludge |
| Print shops (0073) | Solvents; inks; dyes; oils; photographic chemicals |
| Railroad tracks and yards (0074) | Diesel fuel; herbicides for rights-of-way; creosote for preserving wood ties |
| Research laboratories (0075) | X-ray developers and fixers;19 infectious wastes; radiological wastes; biological wastes; disinfectants; asbestos; beryllium; solvents; infectious materials; drugs; disinfectants (quaternary ammonia, hexachlorophene, peroxides, chlornexade; bleach); miscellaneous chemicals |
| Scrap and junk yards (0076) | Any wastes from businesses15 and households;10 oils |
| Sports and hobby shops (0077) | Gunpowder and ammunition; rocket engine fuel; model airplane glue |
| Aboveground and underground storage tanks (0078) | Heating oil; diesel fuel; gasoline; other petroleum products; other commercially used chemicals |
| Transportation services for passenger transit (local and interurban) (0079) | Waste oil; solvents; gasoline and diesel fuel from vehicles and storage tanks; fuel oil; other automotive wastes9 |
| Veterinary services (0080) | Solvents; infectious materials; vaccines; drugs; disinfectants (quaternary ammonia, hexachlorophene, peroxides, chlornexade, bleach); x-ray developers and fixers19 |
| INDUSTRIAL SOURCES (B) | |
| Material stockpiles (coal, metallic ores, phosphates, gypsum) (0081) | Acid drainage; other hazardous and nonhazardous wastes18 |
| Waste tailing ponds (commonly for the disposal of mining wastes) (0082) | Acids; metals; dissolved solids; radioactive ores; other hazardous and nonhazardous wastes17 |
| Transport and transfer stations (trucking terminals and rail yards) (0083) | Fuel tanks; repair shop wastes;9 other hazardous and nonhazardous wastes17 |
| Aboveground and underground storage tanks and containers (0084) | Heating oil; diesel and gasoline fuel; other petroleum products; hazardous and nonhazardous materials and wastes18 |
| Storage, treatment, and disposal ponds, lagoons, and other surface impoundments (0085) | Hazardous and nonhazardous liquid wastes;18 septage; sludge16 |
| Chemical landfills (0086) | Leachate; hazardous and nonhazardous wastes;18 nitrates |
| Radioactive waste disposal sites (0087) | Radioactive wastes from medical facilities, power plants, and defense operations; radionuclides (uranium, plutonium) |
| Unattended wet and dry excavation sites (unregulated dumps) (0088) | A wide range of substances; solid and liquid wastes; oil-field brines; spent acids from steel mill operations; snow removal piles containing large amounts of salt |
| Operating and abandoned production and exploratory wells (for gas, oil, coal, geothermal, and heat recovery); test hole wells; monitoring and excavation wells (0089) | Metals; acids; minerals; sulfides; other sulfides; other hazardous and nonhazardous chemicals18 |
| Dry wells (0090) | Saline water from wells pumped to keep them dry |
| Injection wells (0091) | Highly toxic wastes; hazardous and nonhazardous industrial wastes;18 oil-field brines |
| Well drilling operations (0092) | Brines associated with oil and gas operations |
| INDUSTRIAL PROCESSES (B) (PRESENTLY OPERATED OR TORN-DOWN FACILITIES)20 | |
| Asphalt plants (0093) | Petroleum derivatives |
| Communications equipment manufacturers (0094) | Nitric, hydrochloric, and sulfuric acid wastes; heavy metal sludges; copper-contaminated etchant (e.g., ammonium persulfate); cutting oil and degreasing solvent (trichloroethane, Freon, or trichloroethylene); waste oils; corrosive soldering flux; paint sludge; waste plating solution |
| Electric and electronic equipment manufacturers and storage facilities (0095) | Cyanides; metal sludges; caustics (chromic acid); solvents; oils; alkalis; acids; paints and paint sludges; calcium fluoride sludges; methylene chloride; perchloroethylene; trichloroethane; acetone; methanol; toluene; PCBs |
| Electroplaters (0096) | Boric, hydrochloric, hydrofluoric, and sulfuric acids; sodium and potassium hydroxide; chromic acid; sodium and hydrogen cyanide; metallic salts |
| Foundries and metal fabricators (0097) | Paint wastes; acids; heavy metals; metal sludges; plating wastes; oils; solvents; explosive wastes |
| Furniture and fixtures manufacturers (0098) | Paints; solvents; degreasing sludges; solvent recovery sludges |
| Machine and metalworking shops (0100) | Solvents; metals; miscellaneous organics; sludges; oily metal shavings; lubricant and cutting oils; degreasers (TCE); metal marking fluids; mold-release agents |
| Mining operations (surface and underground) (0101) | Mine spoils or tailings that often contain metals; acids; highly corrosive mineralized waters; metal sulfides |
| Unsealed abandoned mines used as waste pits (0102) | Metals; acids; minerals; sulfides; other hazardous and nonhazardous chemicals18 |
| Paper mills (0103) | Metals; acids; minerals; sulfides; other hazardous and nonhazardous chemicals;18 organic sludges; sodium hydroxide; chlorine; hypochlorite; chlorine dioxide; hydrogen peroxide |
| Petroleum production and storage companies, secondary recovery of petroleum (0104) | Hydrocarbons; oil-field brines (highly mineralized salt solutions) |
| Industrial pipeline (0105) | Corrosive fluids; hydrocarbons; other hazardous and nonhazardous materials and wastes18 |
| Photo processing laboratories (0106) | Cyanides; biosludges; silver sludges; miscellaneous sludges |
| Plastics materials and synthetics producers (0107) | Solvents; oils; miscellaneous organics and inorganics (phenols, resins); paint wastes; cyanides; acids; alkalis; wastewater treatment sludges; cellulose esters; surfactant; glycols; phenols; formaldehyde; peroxides; etc. |
| Primary metal industries (blast furnaces, steel works, and rolling mills) (0108) | Heavy metal wastewater treatment sludge; picking liquor; waste oil; ammonia scrubber liquor; acid tar sludge; alkaline cleaners; degreasing solvents; slat; metal dust |
| Publishers, printers, and allied industries (0109) | Solvents; inks; dyes; oils; miscellaneous organics; photographic chemicals |
| Public utilities (phone, electric power, gas) (0110) | PCBs from transformers and capacitors; oils; solvents; sludges; acid solution; metal plating solutions (chromium, nickel, cadmium); herbicides from utility rights-of-way |
| Sawmills and planers (0111) and gluing wastes | Treated wood residue (copper quinolate, mercury, sodium bazide); tanner gas; paint sludges; solvents; creosote; coating |
| Stone, clay, and glass manufacturers (0112) | Solvents; oils and grease; alkalis; acetic wastes; asbestos; heavy metal sludges; phenolic solids or sludges; metal-finishing sludge |
| Welders (0113) | Oxygen, acetylene |
| Wood preserving facilities (0114) | Wood preservatives; creosote |
1
In general, ground-water contamination stems from the misuse and improper disposal of liquid and solid wastes; the illegal dumping or abandonment of household, commercial, or industrial chemicals; the accidental spilling of chemicals from trucks, railways, aircraft, handling facilities, and storage tanks; or the improper siting, design, construction, operation, or maintenance of agricultural, residential, municipal, commercial, and industrial drinking water wells and liquid and solid waste disposal facilities. Contaminants also can stem from atmospheric pollutants, such as airborne sulfur and nitrogen compounds, which are created by smoke, flue dust, aerosols, and automobile emissions, fall as acid rain, and percolate through the soil. When the sources listed on this table are used and managed properly, ground-water contamination is not likely to occur.2
Contaminants can reach ground water from activities occurring on the land surface, such as industrial waste storage; from sources below the land surface but above the water table, such as septic systems; from structures beneath the water table, such as wells; or from contaminated recharge water.3
This table lists most common wastes, but not all potential wastes. For example, it is not possible to list all potential contaminants contained in storm water runoff or research laboratory wastes.4
Contaminant Source Code Number for Form III-1 (Source Identification Form).5
Facility Type Code Number for Form III-1 (Source Identification Form).6
Coliform bacteria can indicate the presence of pathogenic (disease-causing) microorganisms that may be transmitted in human feces. Diseases such as typhoid fever, hepatitis, diarrhea, and dysentery can result from sewage contamination of water supplies.7
Pesticides include herbicides, insecticides, rodenticides, fungicides, and avicides; many are highly toxic and quite mobile in the subsurface. An EPA survey found that the most common pesticides found in drinking water wells were DCPA (dacthal) and atrazine (EPA, 1990b), which EPA classifies as moderately toxic (class 3) and slightly toxic (class 4) materials, respectively (Meister Publishing Company, 1991).8
The EPA National Pesticides Survey (EPA, 1991) found that the use of fertilizers correlates to nitrate contamination of ground-water supplies.9
Automotive wastes can include gasoline; antifreeze; automatic transmission fluid; battery acid; engine and radiator flushes; engine and metal degreasers; hydraulic (brake) fluid; and motor oils.10
Toxic or hazardous components of common household products are noted on the attached table (EPA 1990c).11
Common household pesticides for controlling pests such as ants, termites, bees, wasps, flies, cockroaches, silverfish, mites, ticks, fleas, worms, rats, and mice can contain active ingredients including naphthalene, phosphorus, xylene, chloroform, heavy metals, chlorinated hydrocarbons, arsenic, strychnine, kerosene, nitrosamines, and dioxin.12
Common pesticides used for lawn and garden maintenance (i.e., weed killers, and mite, grub, and aphid controls) include such chemicals as 2,4-D; chlorpyrifos; diazinon; benomyl; captan; dicofol; and methoxychlor.13
Swimming pool chemicals can contain free and combined chlorine; bromine; iodine; mercury-based, copper-based, and quaternary algaecides; cyanuric acid; calcium or sodium hypochlorite; muriatic acid; sodium carbonate.14
Septic tank/cesspool cleaners include synthetic organic chemicals such as 1,1,1 trichloroethane, tetrachloroethylene, carbon tetrachloride, and methylene chloride.15
Common wastes from public and commercial buildings include automotive wastes (see above definition); rock salt; and residues from cleaning products that may contain chemicals such as xylenols, glycol esters, isopropanol, 1,1,1-trichloroethane, sulfonates, chlorinated phenols, and cresols.16
Municipal wastewater treatment sludge can contain organic matter; nitrates; inorganic salts; heavy metals; coliform and noncoliform bacteria (see above definition); and viruses.17
Municipal wastewater treatment chemicals include calcium oxide; alum; activated alum, carbon, and silica; polymers; ion exchange resins; sodium hydroxide; chlorine; ozone; and corrosion inhibitors.18
The Resource Conservation and Recovery Act (RCRA) defines a hazardous waste as a solid waste that may cause an increase in mortality or serious illness or pose a substantial threat to human health and the environment when improperly treated, stored, transported, disposed of, or otherwise managed. A waste is hazardous if it exhibits characteristics of ignitability, corrosivity, reactivity, and/or toxicity. Not covered by RCRA regulations are domestic sewage; irrigation waters or industrial discharges allowed by the Clean Water Act; certain nuclear and mining wastes; household wastes; agricultural wastes (excluding some pesticides); and small quantity hazardous wastes (i.e., less than 220 pounds per month) discharged from businesses.19
X-ray developers and fixers may contain reclaimable silver, glutaldehyde, hydroquinone, phenedone, potassium bromide, sodium sulfite, sodium carbonate, thiosulfates, and potassium alum.20
This table lists potential ground-water contaminants from many common industries, but it does not address all industries.
Regulated Organics: MCL
CAS# VOCs ug/L Trade Name, synonym, etc. Use
75-35-4 1,1-Dichloroethylene 7 Vinylidene chloride (VC) making of "saran", adhesives, synthetic fibers
71-55-6 1,1,1-Trichloroethane 200 Methyl chloroform metal degreasing, pesticides
79-00-5 1,1,2-Trichloroethane 5 Vinyl trichloride solvent for fats, waxes, alkaloids, resins
107-06-2 1,2-Dichloroethane 5 Ethylene dichloride, EDC solvent, fumigant, Pb antiknock in gas
78-87-5 1,2-Dichloropropane 5 Propylene dichloride solvent, Pb antiknock, metal degreasing
120-82-1 1,2,4-Trichlorobenzene 9 Trichlorobenzene termite control
71-43-2 Benzene 5 Benzol component of gas, degreaser, solvent
56-23-5 Carbon tetrachloride 5 Tetrachloromethane refrigerant, fumigant, solvent, extinguishers
156-23-5 cis-1,2-Dichloroethylene 70 Acetylene dichloride, Dioform solvent, retarding fermentation
75-09-2 Dichloromethane 5 Methylene chloride paint remover, solvent/degreasing, aerosol
100-41-4 Ethylbenzene 700 phenylethane resin solvent, intermediate in mfg. of styrene
108-90-7 Monochlorobenzene 100 Chlorobenzene, phenyl chloride solvent, heat transfer, phenol
95-50-1 o-Dichlorobenzene 600 1,2-dichlorobenzene solvent, pesticide
106-46-7 para-Dichlorobenzene 75 Paracide, PDB insecticidal fumigant, moth repellent
100-42-5 Styrene 100 Polysytrene packaging, insulator (foam)
127-18-4 Tetrachloroethylene 5 PCE, tetrachloroethene dry cleaning, solvent, heat transfer
108-88-3 Toluene 1000 methyl benzene, phenyl methane gas add've, solvent, mfg. chemcials/explosives
156-60-5 trans-1,2-Dichloroethylene 100 Acetylene dichloride, Dioform solvent, retarding fermentation
79-01-6 Trichloroethylene 5 TCE, trilene, trichloroethene degreasing, solvent, dry cleaning, fumigant
75-01-4 Vinyl chloride 2 Chloroethylene plastics industry, refrigerant
1330-20-7 Xylenes (total) 10000 Dimethylbenzene used in gas, solvents, pesticides
Regulated Organics:
CAS # SOCs ug/L Trade name, synonym, etc. Use
1746-01-6 2,3,7,8-TCDD 3E-05 Dioxin Defoliant
94-75-7 2,4-D 70 Hedonal, Trinoxol herbicide
93-72-1 2,4,5-TP 50 2,4,5-Trichlorophenoxy acetic acid herbicide, defoliant, plant hormone
15972-60-8 Alachlor 2 Lasso, Alanex, metachlor herbicide for corn, beans, soybeans, peanuts
1912-24-9 Atrazine 3 AAtrex, Primatol A, Bicep herbicide for corn, sorghum, other crops
50-32-8 Benzo(a)pyrene 0.2 Polynuclear aromatic hydrocarbon product of incomplete combustion
1563-66-2 Carbofuran 40 Furadan insecticide, nematicide, miticide for crops
57-74-9 Chlordane 2 Velsicol 1068, Belt, Chlor Kill insecticide, fumigant (termites)
75-99-0 Dalapon 200 Dowpon, Radapon, Basafapon herbicide for grasses, cattails, rushes
96-12-8 Dibromochloropropane 0.2 DBCP, 1,2-Dibromo-3-chloropropane nematocide, soil fumigant, pesticide
88-85-7 Dinoseb 7 DNBP, Basanite, Caldon herbicide, insecticide, miticide, fungicide
85-00-7 Diquat 20 Dextrone, Actor, Reglone herbicide/potato vines, seed crops, sugar cane
103-23-1 Di(ethylhexyl)adipate 500 DEHA, Adipates plasticizer - syn. rubber, food pkg, cosmetics
117-81-7 Di(ethylhexyl)phthalate 4 DEHP, Phthalates plasticizer for PVC resins
145-73-3 Endothall 100 Aquathol, Hydout herbicide/sugar beets, turf, hops, alfalfa, clover
72-20-8 Endrin 2 Hexadrin insecticide
106-93-4 Ethylene dibromide 0.05 EDB fumigant, insecticide, solvent, antiknock for gas
1071-53-6 Glyphosate 70 Roundup, Rodeo, Kleenup, Shackle non-selective broad-spectrum herbicide
76-44-8 Heptachlor 0.4 Velsicol-104, Drinox termite control
1024-57-3 Heptachlor epoxide 0.2 (unknown) degradation/oxidation product of heptachlor
118-74-1 Hexachlorobenzene 1 Perchlorobenzene waste - CL2 reactions, wood preserv., fungicide
77-47-4 Hexachlorocyclopentadiene 50 HEX, Perchlorocyclopentadiene pesiticides, flame retardant, fungicide
58-89-9 Lindane 0.2 gamma hexachlor, Lindafor insecticide for tobacco, fruit/nut trees, vegetables
72-43-5 Methoxychlor 40 Methoxy-DDT, Marlate insecticide for trees, gardens, cattle, farm buildings
23135-22-0 Oxamyl 200 Vydate, Thioxamyl insecticide/nematocide for crops, fruits, vegetables
87-86-5 Pentachlorophenol 200 PCP, Penta wood preserv for fungus/termite/beetle, molluscicide
1918-02-1 Picloram 500 Tordon, Pinene herbicide for weeds/woody plants, brush control
1336-36-3 Polychlorinated biphenyl's 0.5 PCB's, Aroclor in electrical transformers & capacitors
122-34-9 Simazine 1 Primatol S, Princep, Simanex herbicide for grasses/weeds in many crops
8001-35-2 Toxaphene 3 Chlorinated camphene insecticide
ORGANICS REGULATED BY TREATMENT TECHNIQUE - NO MCL
CAS # SOCs ug/L Trade name, synonym, etc. Use
79-06-1 Acrylamide * Propenamide flocculant for WTPs
106-89-8 Epichlorohydrin * Chloromethyloxirane flocculant for WTPs, epoxy & phenoxy resins
MCL
REGULATED INORGANICS (ug/L) Contaminant Type
Antimony 6 Chronic
Arsenic 50 Chronic
Barium 2000 Chronic
Beryllium 4 Fluoride 4 Chronic
Cadmium 5 Chronic
Chromium 100 Chronic
Cyanide 200 Chronic
Mercury 2 Chronic
Nickel 100 Chronic
Selenium 50 Chronic
Thallium 2 Chronic
Asbestos 7 million fibers per liter Chronic
Nitrate 10,000 Acute
Nitrite 1,000 Acute
Nitrate+Nitrite 10,000 Acute
Fluoride 4,000 Chronic
Sulfate Not Regulated Chronic
OTHER PARAMETERS Contaminant Type MCL or Action Level
Gross Alpha Activity Chronic 15 pCi/l
Radium 226 + Radium 228 Chronic 5 pCi/l
Trihalomethanes Chronic 100 ug/l
Turbidity Chronic 95% of all turbidity measurements <= 0.5 NTU w/ no levels > 5 NTU
Lead Chronic 90% of tap samples to have 15 ug/l or less of lead
Copper Chronic 90% of tap samples to have 1.3 mg/l or less of copper
Total Coliform Acute Systems w/ 39 or fewer samples per month-If more than one sample is positive,
the system is out of compliance.
Systems w/ 40 or more samples per month-If more than 5% of the samples are positive,
the system is out of compliance.
Fecal Coliform Acute Any repeat sample positive for fecal coliform OR any routine sample positive for
fecal coliform that is followed by a positive repeat sample.
Giardia lambia Acute Regulated by treatment technique by Surface Water Treatment Rule
Viruses Acute Regulated by treatment technique by Surface Water Treatment Rule
Legionella sp. Acute Regulated by treatment technique by Surface Water Treatment Rule
Heterotrophic Bacteria Acute Regulated by treatment technique by Surface Water Treatment Rule
Cryptosporidium parvum Acute Proposed Enhanced Surface Water Treatment Rule
Chapters
1 |
2 |
3 |
4 |
5 |
6 |
7
Glossary |
Acronyms
Appendices
A |
B |
C |
D
Wyoming's Source
Water Assessment Guidance Document Contents