The Power of Information

National Drinking Water Database


City of Garden Grove - Anaheim, CA


Serves 151,807 people - Test data available: 2004-2009

This drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group (EWG) by the California Department of Public Health. 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.
9 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.
0 chemicals
0.5
Pollutants FoundThe total number of contaminants detected since 2004, according to data provided by the state water agency.
25 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.
13,694 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*
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.0.16 ppb
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
Alpha particle activityAlpha particles are a form of radiation released from mining waste pollutants and natural sources.8.84 pCi/L
10 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
15 pCi/L
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.0.06 ppb
1.3 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
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.0.88 ppb
2.13 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
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.0.08 ppb
1.2 ppb
Yes
0.4 ppb
No
80 ppb
Combined Radium (-226 & -228)Radium is a radioactive element usually found around uranium deposits.0.83 pCi/L
0.96 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-226Radium-226 is a radioactive element usually found around uranium deposits.0.25 pCi/L
0.3 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
Radium-228Radium-228 is a radioactive element usually found around uranium deposits.0.58 pCi/L
0.76 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
RadonRadon is a radioactive breakdown product of radium and uranium in soil, rock and water; it is often present in groundwater.403 pCi/L
403 pCi/L
Yes
1.5 pCi/L
Legal 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.

Other Detected Contaminants

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Nitrate & nitriteNitrate and nitrite enter water from fertilizer runoff, leaching from septic tanks, and erosion of natural deposits.3.55 ppm
6.86 ppm
No
10 ppm
No
10 ppm
NitrateNitrate enters drinking water sources from fertilizer runoff, leaching septic tanks, and erosion of natural deposits; it is also emitted by chemical, petrochemical and metal-finishing industries.3.55 ppm
6.84 ppm
No
10 ppm
No
10 ppm
Total trihalomethanes (TTHMs)Total trihalomethanes constitute the sum of four disinfection byproducts: chloroform, bromodichloromethane, dibromochloromethane, and bromoform.0.4 ppb
6.5 ppb
No
9.8 ppb
No
80 ppb
1,1-DichloroethyleneIndustrial chemical pollutant from manufacture of adhesives, synthetic fibers, refrigerants and plastic wraps.0.07 ppb
0.6 ppb
No
7 ppb
No
7 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.0.1 ppb
1.1 ppb
No
5.7 ppb
No
80 ppb
BromideBromide is a naturally occurring element found in surface waters and groundwater and contributes to the formation of toxic tap water disinfection byproducts.141.11 ppb
277.5 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
Combined Uranium (pCi/L)Uranium is a radioactive element commonly found in most rocks; processed ore is used for power generation and weapons manufacture.9.7 pCi/L
12 pCi/L
NoNo
15 pCi/L
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.42.96 ppb
120 ppb
No
700 ppb
No
2000 ppb
PerchloratePerchlorate is a synthetic oxygen additive in solid fuel propellant for rockets, missiles, and fireworks, and is primarily used by the military and the space industry; it may occur naturally in certain imported agricultural fertilizers.0.19 ppb
4.9 ppb
No
5 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
NitriteNitrite is a chemical that enters water from fertilizer runoff, leaching septic tanks, and erosion of natural deposits.<0.01 ppm
<0.01 ppm
No
1 ppm
No
1 ppm
1,1,1-Trichloroethane1,1,1-Trichloroethane is an industrial cleaning solvent that contaminates drinking water sources due to releases from metal degreasing sites and chemicals factories.0.01 ppb
0.3 ppb
No
200 ppb
No
200 ppb
AluminumAluminum is a metal released from metal refineries and mining operations.3.63 ppb
28.45 ppb
No
200 ppb
No
200 ppb
VanadiumVanadium is a metal used as an alloying addition to iron & steel; it is discharged from ceramic, glass, textile, photography, metallurgy and rubber industries.1.63 ppb
4.3 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
Chromium (hexavalent)Chromium is a metal that pollutes drinking water due to discharge from steel and pulp mills and erosion of natural deposits.0.92 ppb
1.9 ppb
NoNo
100 ppb
NitrobenzeneNitrobenzene is a synthetic chemical used in the production of aniline, which is used to make dyes, herbicides and drugs.0.03 ppb
1.25 ppb
No
4 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Selenium (total)Selenium is a naturally occurring element that contaminates water due to mining or petrolum refining, fly-ash from coal-burning power plants, and irrigation of arid farmland soils high in selenium.0.43 ppb
2 ppb
No
50 ppb
No
50 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 - 168 chemicals

1,1,1,2-Tetrachloroethane, 1,1,2,2-Tetrachloroethane, 1,1,2-Trichloroethane, 1,1-Dichloroethane, 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-Dichloropropene, 2,2-Dichloropropane, 2,4,5-TP (Silvex), 2,4-d, 2,4-Dinitrotoluene, 2,6-Dinitrotoluene, 3-Hydroxycarbofuran, 4,4-dde, Acenaphthene, Acenaphthylene, Acetochlor, Alachlor (Lasso), Aldicarb, Aldicarb sulfone, Aldicarb sulfoxide, Aldrin, alpha-Lindane, Anthracene, Antimony (total), Aroclor 1221, Aroclor 1232, Aroclor 1242, Aroclor 1248, Aroclor 1254, Aroclor 1260, Atrazine, Baygon (Propoxur), Bentazon (Basagran), Benzene, Benzo[a]anthracene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[g,h,i]perylene, Benzo[k]fluoranthene, Beryllium (total), beta-Lindane, bis(2-chloroethyl) ether, Bromacil, Bromobenzene, Bromochloromethane, Bromomethane, Butachlor, Butyl Benzylphthalate, Cadmium (total), Carbaryl, Carbofuran, Carbon tetrachloride, Chlordane, Chloroethane, Chloromethane, Chlorothalonil (Bravo), Chromium (total), Chrysene, cis-1,2-Dichloroethylene, cis-1,3-Dichloropropene, Copper, Cyanide, Dalapon, delta-BHC, Di(2-Ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Di-n-butylphthalate, Di-n-octylphthalate, Diazinon (Spectracide), Dibenz[a,h]anthracene, Dibromomethane, Dicamba, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Dieldrin, Diethylphthalate, Dimethoate, Dimethylphthalate, Dinoseb, Diquat, Diuron, Endosulfan I, Endosulfan II, Endosulfan Sulfate, Endothall, Endrin, Endrin Aldehyde, Ethyl-t-butyl ether (ETBE), Ethylbenzene, Ethylene dibromide (EDB), Fluoranthene, Fluorene, Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorobutadiene, Hexachlorocyclopentadiene, Indeno[1,2,3-cd]pyrene, Isophorone, Isopropylbenzene, Lead (total), Lindane, Linuron, m- & p- Xylene, m-Dichlorobenzene, Malathion, Manganese, Mercury (total inorganic), Methiocarb, Methomyl, Methoxychlor, Methyl ethyl ketone, Methyl isobutyl ketone, Methyl Parathion, Metolachlor, Metribuzin, Molinate (Ordram), Monochlorobenzene (Chlorobenzene), Mtbe, n-Butylbenzene, n-Propylbenzene, Naphthalene, o-Chlorotoluene, o-Dichlorobenzene, o-Xylene, Oxamyl (Vydate), p,p'-DDT, p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, Paraquat, Parathion (ethyl), Pentachlorophenol, Phenanthrene, Picloram, Prometon, Prometryn, Propachlor, Pyrene, sec-Butylbenzene, Silver (total), Simazine, Styrene, Tert-Amyl-Methyl Ether, Tert-Butyl Alcohol, tert-Butylbenzene, Tetrachloroethylene, Thallium (total), Thiobencarb (Bolero), Toluene, Toxaphene, trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, Trichloroethylene, Trichlorofluoromethane, Trichlorotrifluoroethane, Vinyl chloride, Xylenes (total)

Pollution Summary

25Total Contaminants Detected (2004 - 2009)

Aluminum, Bromide, Barium (total), Nitrate & nitrite, Nitrate, Nitrite, Selenium (total), Chromium (hexavalent), Vanadium, Nitrobenzene, Chloroform, Total trihalomethanes (TTHMs), 1,1-Dichloroethylene, 1,1,1-Trichloroethane, Perchlorate, Combined Uranium (pCi/L), Arsenic (total), Bromoform, Bromodichloromethane, Dibromochloromethane, Radon, Combined Radium (-226 & -228), Radium-226, Radium-228, Alpha particle activity

6Agricultural Pollutants
(pesticides, fertilizer, factory farms)

Nitrate & nitrite, Nitrate, Nitrite, Selenium (total), Perchlorate, Arsenic (total)

4Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

Nitrate, Nitrate & nitrite, Arsenic (total), Nitrite

19Industrial Pollutants

Aluminum, Bromide, Barium (total), Nitrate & nitrite, Nitrate, Nitrite, Selenium (total), Chromium (hexavalent), Vanadium, Nitrobenzene, 1,1-Dichloroethylene, 1,1,1-Trichloroethane, Perchlorate, Combined Uranium (pCi/L), Arsenic (total), Combined Radium (-226 & -228), Radium-226, Radium-228, Alpha particle activity

5Water Treatment and Distribution Byproducts
(pipes and fixtures, treatment chemicals and byproducts)

Total trihalomethanes (TTHMs), Chloroform, Bromodichloromethane, Dibromochloromethane, Bromoform

15Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Nitrate, Nitrate & nitrite, Barium (total), Arsenic (total), Radium-228, Radium-226, Alpha particle activity, Combined Radium (-226 & -228), Combined Uranium (pCi/L), Aluminum, Selenium (total), Nitrite, Radon, Bromide, Chromium (hexavalent)

5Unregulated Contaminants
EPA has not established a maximum legal limit in tapwater for these contaminants

Bromide, Vanadium, Nitrobenzene, Perchlorate, 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.