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Big Valley Park Mhp - Joplin, MO

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Serves 108 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 Missouri Department of Natural Resources- Public Drinking Water Program. 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.	4 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.	12 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.	258 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*
Alpha particle activityAlpha particles are a form of radiation released from mining waste pollutants and natural sources.	2.2 pCi/L 2.6 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
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.	1.21 ppb 2.41 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
Combined Radium (-226 & -228)Radium is a radioactive element usually found around uranium deposits.	0.7 pCi/L 0.7 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.	0.7 pCi/L 0.7 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

Contaminant	Average/ Maximum Result	Health Limit Exceeded	Legal Limit Exceeded	Testing History -Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
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.	6.11 ppb 12.2 ppb	No 700 ppb	No 2000 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.	<0.01 ppb <0.01 ppb	No 300 ppb	No 1000 ppb
ManganeseManganese is a naturally occurring element released from mineral deposits as well as industrial use.	<0.01 ppb <0.01 ppb	No 50 ppb	No 50 ppb
Mercury (total inorganic)Mercury is a metal from refinery and factory pollution, coal burning, landfill and agricultural runoff and erosion of natural deposits.	0.19 ppb 0.37 ppb	No 1.2 ppb	No 2 ppb
CarbarylCarbaryl is an agricultural pesticide used on citrus, vegetables and nuts; it is also found in home, garden, lawn and industrial applications.	<0.01 ppb <0.01 ppb	No 40 ppb	Legal at any levelThis is the Federal Limit. State Limits may be lower.
MethomylMethomyl is a neurotoxic insecticide used on field, fruit and vegetable crops; EPA classifies methomyl as "Restricted Use Pesticide" because of its high acute oral toxicity to humans.	<0.01 ppb <0.01 ppb	No 200 ppb	Legal at any levelThis is the Federal Limit. State Limits may be lower.
Aldicarb sulfoxideAldicarb sulfoxide is a groundwater contaminant and neurotoxic metabolite of the insecticide aldicarb used on agricultural crops.	<0.01 ppb <0.01 ppb	No 7 ppb	Legal at any levelThis is the Federal Limit. State Limits may be lower.
AldicarbAldicarb is a groundwater contaminant and a neurotoxic insecticide used on agricultural crops.	0.01 ppb 0.03 ppb	No 7 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 - 122 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, 2,2-Dichloropropane, 2,4,5-TP (Silvex), 2,4-d, 3-Hydroxycarbofuran, Alachlor (Lasso), Aldicarb sulfone, Aldrin, Aluminum, Antimony (total), Aroclor 1016, Aroclor 1221, Aroclor 1232, Aroclor 1242, Aroclor 1248, Aroclor 1254, Aroclor 1260, Arsenic (total), Atrazine, Benzene, Beryllium (total), Bromobenzene, Bromochloroacetic acid, Bromochloromethane, Bromodichloroacetic acid, Bromodichloromethane, Bromoform, Bromomethane, Butachlor, Cadmium (total), Carbofuran, Carbon tetrachloride, Chlordane, Chlorodibromoacetic acid, Chloroethane, Chloroform, Chloromethane, Chromium (total), cis-1,2-Dichloroethylene, cis-1,3-Dichloropropene, Cyanazine (Bladex), Cyanide, Dalapon, Dibromoacetic acid, Dibromochloromethane, Dibromomethane, Dicamba, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Dieldrin, Dinoseb, Endrin, Ethylbenzene, Ethylene dibromide (EDB), Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorobutadiene, Hexachlorocyclopentadiene, Isopropylbenzene, Lead (total), Lindane, m- & p- Xylene, m-Dichlorobenzene, Methoxychlor, Metolachlor, Metribuzin, Monobromoacetic acid, Monochloroacetic acid, Monochlorobenzene (Chlorobenzene), Mtbe, n-Butylbenzene, n-Propylbenzene, Naphthalene, Nitrate, Nitrate & nitrite, o-Chlorotoluene, o-Dichlorobenzene, o-Xylene, Oxamyl (Vydate), p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, Pentachlorophenol, Picloram, Propachlor, Radium-228, sec-Butylbenzene, Selenium (total), Silver (total), Simazine, Styrene, tert-Butylbenzene, Tetrachloroethylene, Thallium (total), Toluene, Total haloacetic acids (HAAs), Total trihalomethanes (TTHMs), Toxaphene, trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, Tribromoacetic acid, Trichloroacetic acid, Trichloroethylene, Trichlorofluoromethane, Vinyl chloride, Xylenes (total)

Pollution Summary

12	Total Contaminants Detected (2004 - 2008) Barium (total), Copper, Manganese, Mercury (total inorganic), Carbaryl, Methomyl, Aldicarb sulfoxide, Aldicarb, Dichloroacetic acid, Combined Radium (-226 & -228), Radium-226, Alpha particle activity
4	Agricultural Pollutants (pesticides, fertilizer, factory farms) Carbaryl, Methomyl, Aldicarb sulfoxide, Aldicarb
3	Sprawl and Urban Pollutants (road runoff, lawn pesticides, human waste) Copper, Mercury (total inorganic), Carbaryl
6	Industrial Pollutants Barium (total), Manganese, Mercury (total inorganic), Combined Radium (-226 & -228), Radium-226, Alpha particle activity
1	Water Treatment and Distribution Byproducts (pipes and fixtures, treatment chemicals and byproducts) Dichloroacetic acid
7	Naturally Occurring (naturally present but increased for lands denuded by sprawl, agriculture, or industrial development) Copper, Barium (total), Manganese, Radium-226, Alpha particle activity, Combined Radium (-226 & -228), Mercury (total inorganic)
4	Unregulated Contaminants EPA has not established a maximum legal limit in tapwater for these contaminants Carbaryl, Methomyl, Aldicarb sulfoxide, Aldicarb

EPA Violation Summary

Violation Category	Number of Violations
MCL and Treatment (click see violations)close	1
Violation Date of Violation Maximum contaminant level, Monthly (Coliform bacteria) 2004/10/01 - 2004/10/31
Monitoring (click see violations)close	1
Violation Date of Violation Failure to monitor, Routine Major (Coliform bacteria) 2004/04/01 - 2004/04/30

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.