The Power of Information

National Drinking Water Database


City of Nebraska City - Douglas, NE


Serves 6,591 people - Test data available: 2004-2008

This drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group (EWG) by the Nebraska Department of Health and Human Services. 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
Exceed Health GuidelinesTests showing chemicals at concentrations above health guidelines established by federal and state health agencies. These guidelines are typically set at a levels that pose no significant health risk.
14 chemicals
4
Health Standard ExceedencesChemicals detected at concentrations above the legal limit, the Maximum Contaminant Level (MCLs) established by the U.S. EPA. 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.
3 chemicals
0.5
Pollutants FoundThe total number of contaminants detected since 2004, according to data provided by the state water agency.
32 chemicals
8
Tests ConductedThe total number of number of water quality tests conducted by water utilities and recorded in data provided by the state water agency.
3,222 tests
420

Contaminants Exceeding Health Guidelines

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Total trihalomethanes (TTHMs)Total trihalomethanes constitute the sum of four disinfection byproducts: chloroform, bromodichloromethane, dibromochloromethane, and bromoform.54.75 ppb
85.93 ppb
Yes
9.8 ppb
Yes
80 ppb
ManganeseManganese is a naturally occurring element released from mineral deposits as well as industrial use.163.41 ppb
345 ppb
Yes
50 ppb
Yes
50 ppb
Arsenic (total)Arsenic contaminates drinking water due to mining runoff, erosion of natural deposits, emissions from glass and electronics processing and the use of arsenical compounds as wood preservatives and pesticides.5.67 ppb
17 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
Yes
10 ppb
DibromochloromethaneDibromochloromethane is a disinfection byproduct from the trihalomethane (THM) family, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.8.13 ppb
16 ppb
Yes
0.4 ppb
No
80 ppb
BromodichloromethaneBromodichloromethane is a disinfection byproduct from the trihalomethane (THM) family, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.16.11 ppb
26.63 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
80 ppb
BromoformBromoform is a disinfection byproduct from the trihalomethane (THM) family, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.0.84 ppb
2.3 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
80 ppb
ChloroformChloroform is a disinfection byproduct from the trihalomethane (THM) family, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.29.68 ppb
46 ppb
Yes
5.7 ppb
No
80 ppb
Dichloroacetic acidDichloroacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.12.42 ppb
18 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
60 ppb
Lead (total)Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits.0.06 ppb
0.11 ppb
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 ppb
No
Total haloacetic acids (HAAs)Total haloacetic acids refers to the sum of the concentrations of five related disinfection byproducts in a water sample: dichloroacetic acid, trichloroacetic acid, monochloroacetic acid, monobromoacetic acid and dibromoacetic acid.19.65 ppb
21.4 ppb
Yes
0.7 ppb
No
60 ppb
Barium (total)Barium is a mineral that enters drinking water through drilling and mining waste runoff, discharges from chemical industries and erosion of natural deposits.216.82 ppb
1030 ppb
Yes
700 ppb
No
2000 ppb
RadonRadon is a radioactive breakdown product of radium and uranium in soil, rock and water; it is often present in groundwater.163 pCi/L
163 pCi/L
Yes
1.5 pCi/L
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Radium-226Radium-226 is a radioactive element usually found around uranium deposits.0.8 pCi/L
0.8 pCi/L
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 pCi/L
No
5 pCi/L
Radium-228Radium-228 is a radioactive element usually found around uranium deposits.1.3 pCi/L
1.3 pCi/L
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 pCi/L
No
5 pCi/L
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

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Bromochloroacetic acidBromochloroacetic acid is a disinfection byproduct, and is formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.5.6 ppb
7.9 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
Trichloroacetic acidTrichloroacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.5.98 ppb
8.4 ppb
No
20 ppb
No
60 ppb
Dibromoacetic acidDibromoacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.1.98 ppb
3.7 ppb
NoNo
60 ppb
Monochloroacetic acidMonochloroacetic acid is a disinfection byproduct regulated by EPA as one of five haloacetic acids that are formed when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.9.14 ppb
28 ppb
No
70 ppb
No
60 ppb
Nitrate & nitriteNitrate and nitrite enter water from fertilizer runoff, leaching from septic tanks, and erosion of natural deposits.1.98 ppm
9.4 ppm
No
10 ppm
No
10 ppm
Chromium (total)Chromium is a metal that pollutes drinking water due to discharge from steel and pulp mills and erosion of natural deposits.4.33 ppb
19.1 ppb
No
100 ppb
No
100 ppb
CopperCopper is a naturally occuring metal and drinking water contaminant that enters tap water by corrosion of household plumbing systems and erosion of natural deposits.19.03 ppb
34.62 ppb
No
300 ppb
No
1000 ppb
o-Xyleneo-Xylene is a petroleum-derived solvent used in the printing, rubber, and leather industries; it is also used as a cleaning agent, a thinner for paint, and an ingredient in paints and varnishes.2.71 ppb
46 ppb
No
10000 ppb
No
10000 ppb
IsopropylbenzeneIsopropylbenzene is an intermediate in industrial chemical production, and is also used as a thinner for paints and enamels and a component of fuel; it is released from petroleum refining, evaporation and combustion.0.09 ppb
1.6 ppb
No
700 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
EthylbenzeneEthylbenzene is a pollutant from petroleum refineries and industrial chemical factories; it is also used to make plastics, and may be present as an impurity in some insecticides.2.88 ppb
49 ppb
No
300 ppb
No
700 ppb
TolueneToluene is a pollutant from petroleum refineries and a chemical used in plastics manufacturing as well as the pharmaceutical, paint and furniture industries.4 ppb
68 ppb
No
150 ppb
No
1000 ppb
n-Butylbenzenen-Butylbenzene is an intermediate for chemical manufacturing and a raw material for liquid crystals.0.22 ppb
3.7 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
p-Isopropyltoluenep-Isopropyltoluene is a widely used industrial chemical used in the manufacture of paint, furniture and other consumer goods.0.06 ppb
1 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
NaphthaleneNaphthalene is an intermediate in chemical manufacturing, a moth repellent, a fungicide, and a pollutant from the incomplete combustion of fossil fuels.0.67 ppb
11.35 ppb
No
100 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
1,2,4-Trimethylbenzene1,2,4-Trimethylbenzene is a chemical intermediate, industrial solvent, and component of gasoline, coal tar and petroleum products.3.79 ppb
64.5 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
sec-Butylbenzenesec-Butylbenzene is a pollutant from the incomplete combustion of fossil fuels and various industrial processes.0.01 ppb
0.25 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
1,3,5-Trimethylbenzene1,3,5-Trimethylbenzene is a gasoline hydrocarbon and industrial chemical used in building materials, furnishings and chemical manufacturing.1.5 ppb
25.5 ppb
No
10000 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
n-Propylbenzenen-Propylbenzene is a solvent used in textile dyeing and printing, a pollutant from asphalt and landfill leachate, and a constituent of petroleum and coal.0.32 ppb
5.5 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
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 - 111 chemicals

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-Dichloroethane, 1,2-Dichloropropane, 1,3-Dichloropropane, 2,2-Dichloropropane, 2,3,7,8-TCDD (Dioxin), 2,4,5-TP (Silvex), 2,4-d, 3-Hydroxycarbofuran, Alachlor (Lasso), Aldicarb, Aldicarb sulfone, Aldicarb sulfoxide, Aldrin, Antimony (total), Aroclor 1016, Aroclor 1221, Aroclor 1232, Aroclor 1242, Aroclor 1248, Aroclor 1254, Aroclor 1260, Asbestos, Atrazine, Benzene, Benzo[a]pyrene, Beryllium (total), Bromobenzene, Bromochloromethane, Bromomethane, Butachlor, Butylate (Sutan), Cadmium (total), Carbaryl, Carbofuran, Carbon tetrachloride, Chlordane, Chloroethane, Chloromethane, Chlorpyriphos, cis-1,2-Dichloroethylene, cis-1,3-Dichloropropene, Combined Uranium (pCi/L), Cyanazine (Bladex), Cyanide, Dalapon, Di(2-Ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Dibromomethane, Dicamba, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Dieldrin, Dinoseb, Diquat, Endothall, Endrin, Ethylene dibromide (EDB), Fonofos (dyfonate), Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorobutadiene, Hexachlorocyclopentadiene, Lindane, m- & p- Xylene, m-Dichlorobenzene, m-Xylene, Mercury (total inorganic), Methomyl, Methoxychlor, Metolachlor, Metribuzin, Monobromoacetic acid, Monochlorobenzene (Chlorobenzene), Mtbe, Nitrite, o-Chlorotoluene, o-Dichlorobenzene, Oxamyl (Vydate), p-Chlorotoluene, p-Dichlorobenzene, Paraquat, Pentachlorophenol, Picloram, Propachlor, Selenium (total), Silver (total), Simazine, Styrene, tert-Butylbenzene, Tetrachloroethylene, Thallium (total), Toxaphene, trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, Trichloroethylene, Trichlorofluoromethane, Trifluralin, Vinyl chloride

Pollution Summary

32Total Contaminants Detected (2004 - 2008)

Arsenic (total), Barium (total), Chromium (total), Copper, Lead (total), Manganese, Nitrate & nitrite, p-Isopropyltoluene, Naphthalene, 1,2,4-Trimethylbenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, sec-Butylbenzene, Monochloroacetic acid, Dichloroacetic acid, Trichloroacetic acid, Dibromoacetic acid, Bromochloroacetic acid, Total haloacetic acids (HAAs), Chloroform, Bromoform, Bromodichloromethane, Dibromochloromethane, Total trihalomethanes (TTHMs), Toluene, Ethylbenzene, Isopropylbenzene, o-Xylene, n-Propylbenzene, Radon, Radium-226, Radium-228

3Agricultural Pollutants
(pesticides, fertilizer, factory farms)

Arsenic (total), Nitrate & nitrite, Ethylbenzene

8Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

Arsenic (total), Copper, Lead (total), Nitrate & nitrite, Naphthalene, sec-Butylbenzene, o-Xylene, n-Propylbenzene

19Industrial Pollutants

Arsenic (total), Barium (total), Chromium (total), Lead (total), Manganese, Nitrate & nitrite, p-Isopropyltoluene, Naphthalene, 1,2,4-Trimethylbenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, sec-Butylbenzene, Toluene, Ethylbenzene, Isopropylbenzene, o-Xylene, n-Propylbenzene, Radium-226, Radium-228

11Water Treatment and Distribution Byproducts
(pipes and fixtures, treatment chemicals and byproducts)

Total trihalomethanes (TTHMs), Total haloacetic acids (HAAs), Chloroform, Bromodichloromethane, Dibromochloromethane, Dichloroacetic acid, Trichloroacetic acid, Bromoform, Dibromoacetic acid, Monochloroacetic acid, Bromochloroacetic acid

10Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Copper, Nitrate & nitrite, Barium (total), Lead (total), Arsenic (total), Manganese, Radium-228, Radium-226, Chromium (total), Radon

11Unregulated Contaminants
EPA has not established a maximum legal limit in tapwater for these contaminants

Lead (total), p-Isopropyltoluene, Naphthalene, 1,2,4-Trimethylbenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, sec-Butylbenzene, Bromochloroacetic acid, Isopropylbenzene, n-Propylbenzene, Radon

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.