The Power of Information

National Drinking Water Database


Lost Hills Utility District - Bakersfield, CA


Serves 2,772 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.
12 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.
2 chemicals
0.5
Pollutants FoundThe total number of contaminants detected since 2004, according to data provided by the state water agency.
24 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.
572 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*
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.6.81 ppb
29.5 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
Benzo[a]pyreneBenzo[a]pyrene is a polycyclic aromatic hydrocarbon that contaminates drinking water from leaching coal tar coatings on water distribution pipes and storage liners; it is also a product of combustion.0.12 ppb
0.25 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
0.2 ppb
Alpha particle activityAlpha particles are a form of radiation released from mining waste pollutants and natural sources.0.26 pCi/L
0.38 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
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.0.3 ppb
0.9 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
80 ppb
AtrazineAtrazine is an endocrine-disrupting herbicide used on corn, sugarcane and sorghum; it is associated with adverse reproductive effects and toxicity to the immune system.0.12 ppb
0.23 ppb
Yes
0.15 ppb
No
3 ppb
ChryseneChrysene is a polycyclic aromatic hydrocarbon (PAH) released from the incomplete combustion of fossil fuels.0.12 ppb
0.24 ppb
Yes
<0.01 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.0.15 ppb
0.3 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
LindaneLindane is an insecticide still used in shampoo to control lice and scabies; it is a form of hexachlorocyclohexane, a highly toxic pesticide phased out of agricultural use in the U.S.0.06 ppb
0.11 ppb
Yes
0.03 ppb
No
0.2 ppb
Benzo[k]fluorantheneBenzo[k]fluoranthene is a polycyclic aromatic hydrocarbon (PAH) released from combustion of fossil fuels and waste incinerators; it may leach into tap water from water distribution system tanks and pipes lined with coal tar or asphalt.0.11 ppb
0.22 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Lead (total)Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits.0.55 ppb
1.1 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
Benzo[b]fluorantheneBenzo[b]fluoranthene is a polycyclic aromatic hydrocarbon (PAH) released from combustion of organic matter including fossil fuel and wood.0.16 ppb
0.31 ppb
Yes
<0.01 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
Radium-228Radium-228 is a radioactive element usually found around uranium deposits.0.32 pCi/L
0.32 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*
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.0.34 ppm
0.91 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.5 ppb
5 ppb
No
700 ppb
No
2000 ppb
Total trihalomethanes (TTHMs)Total trihalomethanes constitute the sum of four disinfection byproducts: chloroform, bromodichloromethane, dibromochloromethane, and bromoform.0.4 ppb
1.2 ppb
No
9.8 ppb
No
80 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.0.1 ppb
0.29 ppb
No
0.4 ppb
No
80 ppb
Butyl BenzylphthalateButyl benzylphthalate is an industrial solvent and additive used in adhesives, vinyl flooring, sealants, car-care products and some personal care products.1.03 ppb
2.05 ppb
No
100 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
PyrenePyrene is a polycyclic aromatic hydrocarbon (PAH) released as a pollutant from the incomplete combustion of fossil fuels.0.11 ppb
0.21 ppb
No
200 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
AnthraceneAnthracene is a polycyclic aromatic hydrocarbon (PAH) released from fossil fuel combustion, wastewater treatment, waste incineration; it is used to make dyes and plastics and leaches from water distribution system tanks and pipes lined with coal tar.0.1 ppb
0.2 ppb
No
2000 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
PhenanthrenePhenanthrene is a pollutant from the incomplete combustion of fossil fuels, and is also used in the manufacture of dyes, explosives and pharmaceuticals.0.17 ppb
0.34 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
AcenaphthyleneAcenaphthylene is a component of crude oil and coal tar, and a pollutant from petroleum refining, coal tar distillation, municipal wastewater treatment facilities and municipal waste incinerators.0.38 ppb
0.77 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
MethoxychlorMethoxychlor is an endocrine-disrupting insecticide similar to DDT; banned in the U.S. in 2002, it was historically used on farm animals and in animal feed, lumber, gardens and certain crops. 0.22 ppb
0.44 ppb
No
30 ppb
No
40 ppb
ManganeseManganese is a naturally occurring element released from mineral deposits as well as industrial use.3.75 ppb
7.5 ppb
No
50 ppb
No
50 ppb
AluminumAluminum is a metal released from metal refineries and mining operations.70 ppb
140 ppb
No
200 ppb
No
200 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 - 100 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, 1,2,4-Trimethylbenzene, 1,2-Dichloroethane, 1,2-Dichloropropane, 1,3,5-Trimethylbenzene, 1,3-Dichloropropane, 1,3-Dichloropropene, 2,2-Dichloropropane, 2-Chloroethylvinyl ether, Alachlor (Lasso), Antimony (total), Atraton, Benzene, Benzo[g,h,i]perylene, Beryllium (total), Bromacil, Bromobenzene, Bromochloromethane, Bromodichloromethane, Bromomethane, Cadmium (total), Carbon tetrachloride, Chloroethane, Chloroform, Chloromethane, Chromium (total), cis-1,2-Dichloroethylene, cis-1,3-Dichloropropene, Copper, delta-BHC, Di(2-Ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Di-n-butylphthalate, Diazinon (Spectracide), Dibenz[a,h]anthracene, Dibromomethane, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Dimethoate, Dimethylphthalate, Ethyl-t-butyl ether (ETBE), Ethylbenzene, Ethylene dibromide (EDB), Fluorene, Hexachlorobenzene (HCB), Hexachlorobutadiene, Hexachlorocyclopentadiene, Indeno[1,2,3-cd]pyrene, Isopropylbenzene, m- & p- Xylene, m-Dichlorobenzene, Mercury (total inorganic), Metolachlor, Metribuzin, Molinate (Ordram), Monochlorobenzene (Chlorobenzene), Mtbe, n-Butylbenzene, n-Propylbenzene, Naphthalene, Nitrite, o-Chlorotoluene, o-Dichlorobenzene, o-Xylene, p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, Prometon, Prometryn, sec-Butylbenzene, Secbumeton, Selenium (total), Silver (total), Simazine, Styrene, Terbutryn, Tert-Amyl-Methyl Ether, Tert-Butyl Alcohol, tert-Butylbenzene, Tetrachloroethylene, Thallium (total), Thiobencarb (Bolero), Toluene, trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, Trichloroethylene, Trichlorofluoromethane, Trichlorotrifluoroethane, Vinyl chloride, Xylenes (total)

Pollution Summary

24Total Contaminants Detected (2004 - 2009)

Aluminum, Barium (total), Manganese, Nitrate, Methoxychlor, Acenaphthylene, Phenanthrene, Anthracene, Pyrene, Butyl Benzylphthalate, Dibromochloromethane, Total trihalomethanes (TTHMs), Arsenic (total), Lead (total), Lindane, Atrazine, Chrysene, Benzo[a]anthracene, Benzo[b]fluoranthene, Benzo[k]fluoranthene, Benzo[a]pyrene, Bromoform, Radium-228, Alpha particle activity

5Agricultural Pollutants
(pesticides, fertilizer, factory farms)

Nitrate, Methoxychlor, Arsenic (total), Lindane, Atrazine

13Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

Nitrate, Phenanthrene, Anthracene, Pyrene, Butyl Benzylphthalate, Arsenic (total), Lead (total), Lindane, Chrysene, Benzo[a]anthracene, Benzo[b]fluoranthene, Benzo[k]fluoranthene, Benzo[a]pyrene

16Industrial Pollutants

Aluminum, Barium (total), Manganese, Nitrate, Acenaphthylene, Phenanthrene, Anthracene, Pyrene, Butyl Benzylphthalate, Arsenic (total), Lead (total), Lindane, Chrysene, Benzo[b]fluoranthene, Radium-228, Alpha particle activity

6Water Treatment and Distribution Byproducts
(pipes and fixtures, treatment chemicals and byproducts)

Total trihalomethanes (TTHMs), Dibromochloromethane, Bromoform, Benzo[a]pyrene, Benzo[k]fluoranthene, Benzo[a]anthracene

8Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Nitrate, Barium (total), Lead (total), Arsenic (total), Manganese, Radium-228, Alpha particle activity, Aluminum

10Unregulated Contaminants
EPA has not established a maximum legal limit in tapwater for these contaminants

Acenaphthylene, Phenanthrene, Anthracene, Pyrene, Butyl Benzylphthalate, Lead (total), Chrysene, Benzo[a]anthracene, Benzo[b]fluoranthene, Benzo[k]fluoranthene

EPA Violation Summary

Violation CategoryNumber of Violations
MCL and Treatment
(click see violations)
6
Monitoring
(click see violations)
7

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.