Wednesday, May 16, 2012

U.S.

Toxic Water: A series about the worsening pollution in American waters and regulators' response

Examine whether contaminants in your water supply met two standards: the legal limits established by the Safe Drinking Water Act, and the typically stricter health guidelines. The data was collected by an advocacy organization, the Environmental Working Group, who shared it with The Times.

Beedeville Water Works

  • Chart
    Key
  • 1 or more tests taken in the month
  • 1 or more positive detections
  • 1 or more tests above health limit
  • 1 or more tests above legal limit

Beedeville, Arkansas. Serves 125 people.

2 contaminants below legal limits, but above health guidelines

In some states a small percentage of tests were performed before water was treated, and some contaminants were subsequently removed or diluted. As a result, some reported levels of contamination may be higher than were present at the tap.

Number of Tests
Contaminant Average result Maximum result Health limit Legal limit Total
#
Positive result Above health Above legal Monthly Testing History Chart key at top of page E.P.A. regulated
Lead (total) 1.15 ppb 4 0.20 15 4 2 2   Yes
Radium-226 0.30 pCi/L 0.30 0.05 5 1 1 1   Yes

15 contaminants found within health guidelines and legal limits

Number of Tests
Contaminant Average result Maximum result Health limit Legal limit Total
#
Positive result Above health Above legal Monthly Testing History Chart key at top of page E.P.A. regulated
Barium (total) 80.40 ppb 81.10 2000 2000 2 2 0   Yes
Bromochloroacetic acid 5.10 ppb 5.10 - - 1 1 0   No
Bromodichloromethane 6.00 ppb 10.30 100 80 7 7 0   Yes
Chloroform 7.88 ppb 14.70 70 80 7 7 0   Yes
Copper 142 ppb 250 1300 1300 2 2 0   Yes
Dibromoacetic acid 1.45 ppb 1.80 - 60 2 2 0   Yes
Dibromochloromethane 3.00 ppb 5.20 60 80 8 8 0   Yes
Dichloroacetic acid 6.50 ppb 9 70 60 2 2 0   Yes
Gross beta particle activity (pCi/L) 3 pCi/L 6 15 15 2 1 0   Yes
Manganese 52.55 ppb 104 300 - 2 2 0   No
Monochloroacetic acid 2.40 ppb 2.40 70 60 1 1 0   Yes
Nitrate 0.06 ppm 0.06 10 10 1 1 0   Yes
Total haloacetic acids (HAAs) 13.55 ppb 19.50 70 60 2 2 0   Yes
Total trihalomethanes (TTHMs) 15.14 ppb 30.20 - 80 8 8 0   Yes
Trichloroacetic acid 4.40 ppb 6.30 20 60 2 2 0   Yes

Units: ppb: parts per billion, pCi/L: picocuries per liter, ppm: parts per million, mrem/yr: millirems per year, MFL: million fibers per litre

135 contaminants tested for but not found

1,1,1,2-Tetrachloroethane, 1,1,1-Trichloroethane, 1,1,2,2-Tetrachloroethane, 1,1,2-Trichloroethane, 1,1-Dichloroethane, 1,1-Dichloroethylene, 1,1-Dichloropropene, 1,2 Dibromo-3-chloropropane (DBCP), 1,2,3-Trichlorobenzene, 1,2,3-Trichloropropane, 1,2,4-Trichlorobenzene, 1,2,4-Trimethylbenzene, 1,2-Dichloroethane, 1,2-Dichloropropane, 1,3,5-Trimethylbenzene, 1,3-Dichloropropane, 2,2-Dichloropropane, 2,4,5-T, 2,4,5-TP (Silvex), 2,4-D, 3-Hydroxycarbofuran, Acenaphthene, Acenaphthylene, Alachlor (Lasso), Aldicarb, Aldicarb sulfone, Aldicarb sulfoxide, Aldrin, Alpha particle activity, Aluminum, Anthracene, Antimony (total), Arsenic (total), Atrazine, Baygon (Propoxur), Benzene, Benzo[a]anthracene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[g,h,i]perylene, Beryllium (total), Bromobenzene, Bromochloromethane, Bromoform, Bromomethane, Butachlor, Butyl Benzylphthalate, Cadmium (total), Carbaryl, Carbofuran, Carbon tetrachloride, Chlordane, Chloroethane, Chloromethane, Chromium (total), Chrysene, cis-1,2-Dichloroethylene, cis-1,3-Dichloropropene, Combined Uranium (mg/L), Cyanide, Dalapon, Di(2-Ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Di-n-butylphthalate, Dibenz[a,h]anthracene, Dibromomethane, Dicamba, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Dieldrin, Diethylphthalate, Dimethylphthalate, Dinoseb, Diquat, Endothall, Endrin, Ethylbenzene, Ethylene dibromide (EDB), Fluoranthene, Fluorene, Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorobutadiene, Hexachlorocyclopentadiene, Indeno[1,2,3-cd]pyrene, Isopropylbenzene, Lindane, m- & p- Xylene, m-Dichlorobenzene, Mercury (total inorganic), Methiocarb, Methomyl, Methoxychlor, Metolachlor, Metribuzin, Monobromoacetic acid, Monochlorobenzene (Chlorobenzene), MTBE, n-Butylbenzene, n-Propylbenzene, Naphthalene, Nitrate & nitrite, o-Chlorotoluene, o-Dichlorobenzene, Oxamyl (Vydate), p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, p-Xylene, Paraquat, Pentachlorophenol, Phenanthrene, Picloram, Propachlor, Pyrene, Radium-228, sec-Butylbenzene, Selenium (total), Silver (total), Simazine, Styrene, tert-Butylbenzene, Tetrachloroethylene, Thallium (total), Toluene, Total polychlorinated biphenyls (PCBs), Toxaphene, trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, Trichloroethylene, Trichlorofluoromethane, Vinyl chloride, Xylenes (total)

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