The Power of Information

National Drinking Water Database


Glendale-City, Water Dept. - Los Angeles, CA


Serves 200,000 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.
18 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.
42 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.
31,372 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.8.19 ppb
86 ppb
Yes
9.8 ppb
Yes
80 ppb
AluminumAluminum is a metal released from metal refineries and mining operations.2.78 ppb
371 ppb
Yes
200 ppb
Yes
200 ppb
ManganeseManganese is a naturally occurring element released from mineral deposits as well as industrial use.0.62 ppb
110 ppb
Yes
50 ppb
Yes
50 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.2.58 ppb
28 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.2.28 ppb
26 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.1.75 ppb
26.4 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.1.57 ppb
22.2 ppb
Yes
5.7 ppb
No
80 ppb
TetrachloroethyleneTetrachloroethylene (perc) is a common soil and groundwater contaminant used in dry cleaning and as a solvent in automotive and metalworking factories and other industries.0.04 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
5 ppb
Di(2-ethylhexyl) phthalateDi(2-ethylhexyl) phthalate is a pollutant from rubber and industrial chemical factories and a leachate from PVC pipes; it is classified by EPA as a probable human carcinogen.0.06 ppb
1.36 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
6 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.5.8 ppb
11.1 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
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.7.37 ppb
23.7 ppb
Yes
0.7 ppb
No
60 ppb
Dichloromethane (methylene chloride)Dichloromethane is a widely-used paint remover, solvent and metal degreasing agent; it is discharged into the environment from the manufacture of chemicals, textiles, electronics, metals and plastics, pharmaceuticals and pesticides.0.01 ppb
2.2 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
5 ppb
TrichloroethyleneTrichloroethylene is used to remove grease from fabricated metal parts and in the production of some textiles; this pollutant comes from metal degreasing sites, metal finishing and rubber processing industries.0.01 ppb
1.9 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
5 ppb
n-Nitrosodimethylaminen-Nitrosodimethylamine is a carcinogenic water contaminant released from various industrial processes; it also forms in drinking water as disinfection byproduct of chloramination and from agricultural runoff.<0.01 ppb
<0.01 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Thallium (total)Thallium is a highly toxic metal that contaminates the environment due to leaching from ore-processing sites, discharge from electronics, glass, and drug factories and historical use as rodenticide0.01 ppb
1.4 ppb
Yes
0.1 ppb
No
2 ppb
Beryllium (total)Beryllium is a metal associated with metal refineries and combustion of fossil fuels, especially coal burning; it is released into the environment from electrical, aerospace and defense industries.<0.01 ppb
1.4 ppb
Yes
1 ppb
No
4 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.<0.01 ppb
2.2 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
Cadmium (total)Cadmium is a metal used in the steel and plastic industries; it is released from corrosion of galvanized pipes, runoff from metal refineries, waste batteries and paints; contamination from fertilizers; and erosion of natural deposits.<0.01 ppb
1.4 ppb
Yes
0.04 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

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
ChlorateChlorate is a disinfection byproduct (unregulated chlorine dioxide byproduct), an herbicide and a pollutant from explosives.126.12 ppb
377 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
VanadiumVanadium is a metal used as an alloying addition to iron & steel; it is discharged from ceramic, glass, textile, photography, metallurgy and rubber industries.5.48 ppb
15.8 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
LithiumLithium is a pollutant from mining and industrial manufacturing of metal alloys, ceramics, and batteries; it occurs naturally in soil and rock.3.37 ppb
7.6 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.8.13 ppb
12.6 ppb
NoNo
100 ppb
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.3.04 ppm
7.34 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.5.27 ppb
21 ppb
No
100 ppb
No
100 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.5.02 ppb
6.67 ppb
NoNo
60 ppb
Di-n-butylphthalateDi-n-butylphthalate is an industrial solvent or additive used in many consumer products such as nail polish, cosmetics, some printing inks, pharmaceutical coatings, cleaning products and insecticides.<0.01 ppb
0.12 ppb
No
700 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
DiethylphthalateDiethylphthalate is an industrial solvent used in many consumer products, particularly those containing fragrances; it may be present in perfume, cologne, deodorant, soap, shampoo, hand lotion, and other personal care products.0.14 ppb
5.2 ppb
No
1700 ppb
Legal 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.3 ppb
9.34 ppb
No
20 ppb
No
60 ppb
Nitrate & nitriteNitrate and nitrite enter water from fertilizer runoff, leaching from septic tanks, and erosion of natural deposits.5.43 ppm
5.7 ppm
No
10 ppm
No
10 ppm
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.1.69 ppb
120 ppb
No
700 ppb
No
2000 ppb
NaphthaleneNaphthalene is an intermediate in chemical manufacturing, a moth repellent, a fungicide, and a pollutant from the incomplete combustion of fossil fuels.<0.01 ppb
0.01 ppb
No
100 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
ChloromethaneChloromethane is a naturally occuring chemical that forms during combustion of plant material; it may be released from the manufacture of silicone, rubber and pesticides, and also forms as a byproduct of water disinfection.<0.01 ppb
0.9 ppb
No
30 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.0.06 ppb
9 ppb
No
50 ppb
No
50 ppb
Butyl BenzylphthalateButyl benzylphthalate is an industrial solvent and additive used in adhesives, vinyl flooring, sealants, car-care products and some personal care products.<0.01 ppb
0.04 ppb
No
100 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Monobromoacetic acidMonobromoacetic 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.0.28 ppb
1.34 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.1.02 ppb
7.91 ppb
No
70 ppb
No
60 ppb
DibromomethaneDibromomethane is an unregulated byproduct of tap water disinfection and a manufactured chemical used in chemical synthesis and as an ingredient in fire extinguishing fluids.<0.01 ppb
0.8 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
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
2.4 ppb
No
200 ppb
No
200 ppb
FluorantheneFluoranthene is a polycyclic aromatic hydrocarbon (PAH) released from the incomplete combustion of fossil fuels; it is a constituent of coal tar and asphalt coatings on pipes and storage tanks in tap water distribution systems.<0.01 ppb
<0.01 ppb
No
130 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
IsophoroneIsophorone is a solvent for lacquers, plastics, oils, fats, gums, resins, nitrocellulose, vinyl resins and other chemicals; it is also an intermediate in chemical manufacturing and occurs naturally in cranberries.<0.01 ppb
0.15 ppb
No
35 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Benzo[a]anthraceneBenzo[a]anthracene is a polycyclic aromatic hydrocarbon (PAH) released from combustion of fossil fuels and waste incinerators.<0.01 ppb
<0.01 ppb
No
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
DimethylphthalateDimethylphthalate is a manufactured chemicals used in solid rocket propellants, plastics, molding powders, pesticides and insect repellants.0.23 ppb
8.8 ppb
No
270000 ppb
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.

Contaminants Not Detected - 156 chemicals

1,1,1,2-Tetrachloroethane, 1,1,2,2-Tetrachloroethane, 1,1,2-Trichloroethane, 1,1-Dichloroethane, 1,1-Dichloroethylene, 1,1-dichloropropane, 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, 1,2-Diphenylhydrazine, 1,3,5-Trimethylbenzene, 1,3-Dichloropropane, 1,3-Dichloropropene, 1,4-Dioxane, 2,2-Dichloropropane, 2,4,6-Trichlorophenol, 2,4-Dichlorophenol, 2,4-Dimethylphenol, 2,4-Dinitrophenol, 2,4-Dinitrotoluene, 2,6-Dinitrotoluene, 2-Chloroethylvinyl ether, 2-Chloronaphthalene, 2-Chlorophenol, 2-Nitrophenol, 3,3-Dichlorobenzidine, 4,4-dde, 4-Bromophenyl phenyl ether, 4-chloro-3-methylphenol, 4-Chlorophenyl-phenyl ether, 4-Nitrophenol, Acenaphthene, Acenaphthylene, Acetochlor, Acrylonitrile, Alachlor (Lasso), Aldrin, Anthracene, Antimony (total), Aroclor 1221, Aroclor 1232, Aroclor 1242, Aroclor 1248, Aroclor 1254, Aroclor 1260, Atrazine, Benzene, Benzidine, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[g,h,i]perylene, Benzo[k]fluoranthene, bis(2-chloroethoxy)-methane, bis(2-chloroethyl) ether, bis(2-chloroisopropyl) ether, Bromacil, Bromate, Bromobenzene, Bromochloromethane, Bromomethane, Butachlor, Caffeine, Carbon tetrachloride, Chlordane, Chlorite, Chloroethane, Chrysene, cis-1,2-Dichloroethylene, Copper, Dacthal, Di(2-Ethylhexyl) adipate, Di-n-octylphthalate, Diazinon (Spectracide), Dibenz[a,h]anthracene, Dichlorodifluoromethane, Dieldrin, Dimethoate, Dinitro-o-cresol, Dinitro-o-cresol, Endrin, EPTC (Eptam), Ethyl-t-butyl ether (ETBE), Ethylbenzene, Ethylene dibromide (EDB), Fluorene, Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorobutadiene, Hexachlorocyclopentadiene, Hexachloroethane, Indeno[1,2,3-cd]pyrene, Isopropyl ether, Isopropylbenzene, Lead (total), Lindane, m- & p- Xylene, m-Dichlorobenzene, m-Xylene, Mercury (total inorganic), Methoxychlor, Methyl ethyl ketone, Methyl isobutyl ketone, Metolachlor, Metribuzin, Molinate (Ordram), Monochlorobenzene (Chlorobenzene), Mtbe, n-Butylbenzene, n-Nitroso di-N-Propylamine, N-nitrosodi-n-butylamine (ndba), n-Nitrosodiphenylamine, N-nitrosomethylethylamine (nmea), N-nitrosopiperidine (npip), N-nitrosopyrrolidine (npyr), n-Propylbenzene, Nitrite, Nitrobenzene, o-Chlorotoluene, o-Dichlorobenzene, o-Xylene, p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, p-Xylene, Parachlorometacresol, Pentachlorophenol, Perchlorate, Phenanthrene, Phenols, Picloram, Prometryn, Propachlor, Pyrene, sec-Butylbenzene, Silver (total), Simazine, Styrene, Terbacil, Tert-Amyl-Methyl Ether, Tert-Butyl Alcohol, tert-Butylbenzene, Thiobencarb (Bolero), Toluene, Total polychlorinated biphenyls (PCBs), Toxaphene, trans-1,2-Dichloroethylene, Trichlorofluoromethane, Trichlorotrifluoroethane, Vinyl chloride, Xylenes (total)

Pollution Summary

42Total Contaminants Detected (2004 - 2009)

Chlorate, Barium (total), Chromium (total), Nitrate & nitrite, Nitrate, Selenium (total), Chromium (hexavalent), Lithium, Vanadium, Chloromethane, Naphthalene, Isophorone, Dimethylphthalate, Diethylphthalate, Fluoranthene, Di-n-butylphthalate, Butyl Benzylphthalate, Benzo[a]anthracene, Dibromomethane, Monochloroacetic acid, Trichloroacetic acid, Monobromoacetic acid, Dibromoacetic acid, 1,1,1-Trichloroethane, Aluminum, Arsenic (total), Cadmium (total), Manganese, Beryllium (total), Thallium (total), Di(2-ethylhexyl) phthalate, n-Nitrosodimethylamine, Dichloroacetic acid, Total haloacetic acids (HAAs), Chloroform, Bromoform, Bromodichloromethane, Dibromochloromethane, Total trihalomethanes (TTHMs), Dichloromethane (methylene chloride), Trichloroethylene, Tetrachloroethylene

6Agricultural Pollutants
(pesticides, fertilizer, factory farms)

Chlorate, Nitrate & nitrite, Nitrate, Selenium (total), Arsenic (total), n-Nitrosodimethylamine

14Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

Nitrate, Nitrate & nitrite, Arsenic (total), Tetrachloroethylene, Cadmium (total), Dichloromethane (methylene chloride), Lithium, Di-n-butylphthalate, Naphthalene, Diethylphthalate, Butyl Benzylphthalate, Fluoranthene, Benzo[a]anthracene, Dimethylphthalate

30Industrial Pollutants

Chlorate, Barium (total), Chromium (total), Nitrate & nitrite, Nitrate, Selenium (total), Chromium (hexavalent), Lithium, Vanadium, Chloromethane, Naphthalene, Isophorone, Dimethylphthalate, Diethylphthalate, Fluoranthene, Di-n-butylphthalate, Butyl Benzylphthalate, Dibromomethane, 1,1,1-Trichloroethane, Aluminum, Arsenic (total), Cadmium (total), Manganese, Beryllium (total), Thallium (total), Di(2-ethylhexyl) phthalate, n-Nitrosodimethylamine, Dichloromethane (methylene chloride), Trichloroethylene, Tetrachloroethylene

19Water 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, Monobromoacetic acid, Di(2-ethylhexyl) phthalate, Cadmium (total), Chloromethane, n-Nitrosodimethylamine, Chlorate, Dibromomethane, Fluoranthene, Benzo[a]anthracene

11Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Nitrate, Nitrate & nitrite, Barium (total), Arsenic (total), Manganese, Chromium (total), Aluminum, Selenium (total), Chromium (hexavalent), Chloromethane, Lithium

14Unregulated Contaminants
EPA has not established a maximum legal limit in tapwater for these contaminants

Chlorate, Lithium, Vanadium, Chloromethane, Naphthalene, Isophorone, Dimethylphthalate, Diethylphthalate, Fluoranthene, Di-n-butylphthalate, Butyl Benzylphthalate, Benzo[a]anthracene, Dibromomethane, n-Nitrosodimethylamine

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.