National Drinking Water Database
Edina - Minneapolis, MN
Serves 48,156 people - Test data available: 2004-2010
This drinking water quality report shows results of tests conducted by the
water utility and provided to the Environmental Working Group (EWG) by the
Minnesota Department of Health- Environmental Health Division. It is part of EWG's national database that
includes 47,667 drinking water utilities and 20 million test
results. Water utilities nationwide detected more than 300 pollutants
between 2004 and 2009. More than half of these chemicals are unregulated,
legal in any amount. Despite this widespread contamination, the federal
government invests few resources to protecting rivers, reservoirs, and
groundwater from pollution in the first place. The information below
summarizes test results for this utility and lists potential health concerns.
| |
This Drinking Water System |
National Average |
|
12 chemicals |
4 |
|
0 chemicals |
0.5 |
|
30 chemicals |
8 |
|
4,322 tests |
420 |
Contaminants Exceeding Health Guidelines
| Contaminant | Average/ Maximum Result | Health Limit Exceeded | Legal Limit Exceeded | Testing History -Tested       -Detected       -Over Health Guidelines       -Over Legal Limit* |
|---|
| 2.42 ppb 7.9 ppb | Yes : 0 ppb | No 80 ppb |                                                             |
| 0.3 ppb 0.9 ppb | Yes : 0 ppb | No 5 ppb |                                                             |
| 1.23 ppb 5.2 ppb | Yes 0.4 ppb | No 80 ppb |                                                             |
| 0.38 ppb 1.4 ppb | Yes : 0 ppb | No 2 ppb |                                                             |
| 6.18 pCi/L 9.3 pCi/L | Yes : 0 pCi/L | No 15 pCi/L |                                                             |
| 7.23 ppb 24 ppb | Yes 9.8 ppb | No 80 ppb |                                                             |
| 0.2 ppb 1.43 ppb | Yes : 0 ppb | No 80 ppb |                                                             |
| 0.04 ppb 0.3 ppb | Yes : 0 ppb | No 5 ppb |                                                             |
| 1.53 ppb 4 ppb | Yes : 0 ppb | No 60 ppb |                                                             |
| 3.37 ppb 13 ppb | Yes 5.7 ppb | No 80 ppb |                                                             |
| 1.21 ppb 3.46 ppb | Yes : 0 ppb | No 10 ppb |                                                             |
| <0.01 ppb 0.05 ppb | Yes : 0 ppb | No 5 ppb |                                                             |
NOTE: Each dot in the above graph represents one month. * Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance. |
Other Detected Contaminants
| Contaminant | Average/ Maximum Result | Health Limit Exceeded | Legal Limit Exceeded | Testing History -Tested       -Detected       -Over Health Guidelines       -Over Legal Limit* |
|---|
| 2.7 ppb 7.38 ppb | No 70 ppb | No 70 ppb |                                                             |
| 0.13 ppb 0.4 ppb | No 100 ppb | No 100 ppb |                                                             |
| 2.43 ppb 8.5 ppb | No 70 ppb | No 60 ppb |                                                             |
| 2.79 ppb 4.3 ppb | No 20 ppb | No 60 ppb |                                                             |
| 1.06 ppb 1.8 ppb | No | No 60 ppb |                                                             |
| 0.07 ppb 0.55 ppb | No 3 ppb | |                                                             |
| 0.06 ppb 0.8 ppb | No | |                                                             |
| 0.03 ppb 0.3 ppb | No 200 ppb | No 200 ppb |                                                             |
| 0.04 ppb 0.28 ppb | No 7 ppb | No 7 ppb |                                                             |
| 134.25 ppb 145.75 ppb | No 700 ppb | No 2000 ppb |                                                             |
| 2.17 ppb 3 ppb | No | |                                                             |
| 0.01 ppb 0.2 ppb | No 10000 ppb | No 10000 ppb |                                                             |
| 0.04 ppb 0.7 ppb | No 10000 ppb | No 10000 ppb |                                                             |
| 0.02 ppb 0.2 ppb | No 1800 ppb | No 10000 ppb |                                                             |
| 0.73 ppb 1 ppb | No | |                                                             |
| <0.01 ppb 0.18 ppb | No 1000 ppb | |                                                             |
| 0.84 ppb 17.67 ppb | No 30 ppb | |                                                             |
| <0.01 ppb 0.2 ppb | No 300 ppb | No 700 ppb |                                                             |
NOTE: Each dot in the above graph represents one month. * Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance. |
Contaminants Not Detected - 125 chemicals
1,1,1,2-Tetrachloroethane, 1,1,2,2-Tetrachloroethane, 1,1,2-Trichloroethane, 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, 1,3-dinitrobenzene, 2,2',4,4',5,5'-hexabromobiphenyl (hbb), 2,2',4,4',5,5'-hexabromodiphenyl Ether, 2,2',4,4',5-pentabromodiphenyl Ether, 2,2',4,4',6-pentabromodiphenyl Ether, 2,2',4,4'-tetrabromodiphenyl Ether, 2,2-Dichloropropane, 2,4,5-t, 2,4,5-TP (Silvex), 2,4,6-trinitrotoluene (tnt), 2,4-d, 2,4-db, 2,4-Dinitrotoluene, 2,6-Dinitrotoluene, 3-Hydroxycarbofuran, 4,4-dde, 4-Nitrophenol, Acetochlor, Acetone, Acifluorfen (Blazer), Alachlor (Lasso), Aldicarb, Aldicarb sulfone, Aldicarb sulfoxide, Aldrin, Allyl Chloride (3-chloro-1-propene), Alpha Chlordane, Antimony (total), Atrazine, Bentazon (Basagran), Benzo[a]pyrene, Beryllium (total), Bromobenzene, Bromochloromethane, Bromomethane, Butachlor, Cadmium (total), Carbaryl, Carbofuran, Carbon tetrachloride, Chloramben, Chlordane, Chloroethane, Chromium (total), cis-1,3-Dichloropropene, Combined Uranium (pCi/L), Cyanazine (Bladex), Dalapon, Di(2-Ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Dibromomethane, Dicamba, Dichloromethane (methylene chloride), Dichlorprop, Dieldrin, Dimethoate, Dinoseb, Endrin, Ethyl ether, Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorobutadiene, Hexachlorocyclopentadiene, Isopropylbenzene, Lindane, m-Dichlorobenzene, Mcpa, Mcpp, Mercury (total inorganic), Methomyl, Methoxychlor, Methyl ethyl ketone, Methyl isobutyl ketone, Metolachlor, Metribuzin, Molinate (Ordram), Monobromoacetic acid, Monochlorobenzene (Chlorobenzene), Mtbe, n-Butylbenzene, n-Propylbenzene, Naphthalene, Nitrate, Nitrobenzene, o-Chlorotoluene, o-Dichlorobenzene, Oxamyl (Vydate), p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, Pentachlorophenol, Perchlorate, Picloram, Propachlor, Rdx (hexahydro-1,3,5-trinitro-1,3,5-triazine), sec-Butylbenzene, Selenium (total), Simazine, Styrene, Terbacil, Terbufos Sulfone, tert-Butylbenzene, Tetrahydrofuran, Thallium (total), Toluene, Toxaphene, trans-1,3-Dichloropropene, Trans-Nonachlor, Trichlorofluoromethane, Trichlorotrifluoroethane
Pollution Summary
| 30 | Total Contaminants Detected (2004 - 2010) Barium (total), DCPA di acid degradate, Chloromethane, Dichlorodifluoromethane, cis-1,2-Dichloroethylene, Monochloroacetic acid, Trichloroacetic acid, Dibromoacetic acid, Bromochloroacetic acid, Xylenes (total), 1,1-Dichloroethylene, 1,1-Dichloroethane, trans-1,2-Dichloroethylene, 1,1,1-Trichloroethane, Ethylbenzene, o-Xylene, m- & p- Xylene, Dichlorofluoromethane, Arsenic (total), Dichloroacetic acid, Chloroform, Bromoform, Bromodichloromethane, Dibromochloromethane, Total trihalomethanes (TTHMs), Vinyl chloride, Trichloroethylene, Tetrachloroethylene, Benzene, Alpha particle activity |
| 3 | Agricultural Pollutants (pesticides, fertilizer, factory farms)DCPA di acid degradate, Ethylbenzene, Arsenic (total) |
| 7 | Sprawl and Urban Pollutants (road runoff, lawn pesticides, human waste)Arsenic (total), Tetrachloroethylene, Xylenes (total), m- & p- Xylene, o-Xylene, Benzene, DCPA di acid degradate |
| 19 | Industrial Pollutants Barium (total), Chloromethane, Dichlorodifluoromethane, cis-1,2-Dichloroethylene, Xylenes (total), 1,1-Dichloroethylene, 1,1-Dichloroethane, trans-1,2-Dichloroethylene, 1,1,1-Trichloroethane, Ethylbenzene, o-Xylene, m- & p- Xylene, Dichlorofluoromethane, Arsenic (total), Vinyl chloride, Trichloroethylene, Tetrachloroethylene, Benzene, Alpha particle activity |
| 12 | Water Treatment and Distribution Byproducts (pipes and fixtures, treatment chemicals and byproducts) Total trihalomethanes (TTHMs), Chloroform, Bromodichloromethane, Dibromochloromethane, Dichloroacetic acid, Trichloroacetic acid, Bromoform, Dibromoacetic acid, Monochloroacetic acid, Bromochloroacetic acid, Chloromethane, Vinyl chloride |
| 4 | Naturally Occurring (naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)Barium (total), Arsenic (total), Alpha particle activity, Chloromethane |
| 6 | Unregulated Contaminants EPA has not established a maximum legal limit in tapwater for these contaminantsDCPA di acid degradate, Chloromethane, Dichlorodifluoromethane, Bromochloroacetic acid, 1,1-Dichloroethane, Dichlorofluoromethane |
EPA Violation Summary
No violations were reported for this system since 2004.
Information on violations is drawn directly from EPA's national violations database in the Agency's Safe Drinking Water Information System. Analyses by others have raised questions about the quality of the information in EPA's database. For the purposes of this investigation, EWG is not showing below or including in our analyses, those violations for individual water suppliers that occurred on days for which the total number of violations assigned by EPA to that water supplier was greater than 20. This criteria was based on common characteristics of incorrect violations data as
identified by water utilities, from a review of EPA's violations data by
several hundred utilities prior to the release of EWG's investigation.