The Power of Information

National Drinking Water Database


Woodbridge S/D - Pilot Mountain, NC


Serves 272 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 North Carolina Department of Environment and Natural Resources. 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.
8 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.
26 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.
1,254 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.18.4 ppb
173.8 ppb
Yes
9.8 ppb
Yes
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.14.3 ppb
170 ppb
Yes
0.4 ppb
Yes
80 ppb
Radium-228Radium-228 is a radioactive element usually found around uranium deposits.0.55 pCi/L
0.55 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
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.0.93 ppb
10 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.3.1 ppb
30 ppb
Yes
5.7 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.0.08 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
HexachlorobutadieneHexachlorobutadiene is an intermediate in manufacture of rubber compounds and fluorinated lubricants; it is used in numerous industrial applications as a solvent and a heat transfer liquid.0.08 ppb
0.8 ppb
Yes
0.44 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.0.37 ppb
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
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*
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.1.22 ppb
10 ppb
No
300 ppb
No
700 ppb
Xylenes (total)Xylenes are a group of chemicals produced from petroleum and released as pollutants from chemical, plastics and synthetic fiber industries as well as printing, painting, and laboratory uses.1.18 ppb
5.4 ppb
No
1800 ppb
No
10000 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.110.62 ppb
178 ppb
No
300 ppb
No
1000 ppb
p-Isopropyltoluenep-Isopropyltoluene is a widely used industrial chemical used in the manufacture of paint, furniture and other consumer goods.0.16 ppb
1.3 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
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.1.08 ppb
10 ppb
No
700 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.0.45 ppb
3.8 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
tert-Butylbenzenetert-Butylbenzene is a pollutant from the incomplete combustion of fossil fuels and various industrial processes.0.46 ppb
3.9 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.0.77 ppb
6.9 ppb
No
10000 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.1.13 ppb
10 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
TolueneToluene is a pollutant from petroleum refineries and a chemical used in plastics manufacturing as well as the pharmaceutical, paint and furniture industries.0.06 ppb
0.7 ppb
No
150 ppb
No
1000 ppb
StyreneStyrene is a pollutant from plastics, rubber and other industrial chemical factories and from landfill leachate.0.24 ppb
2.9 ppb
No
100 ppb
No
100 ppb
1,2,4-Trichlorobenzene1,2,4-Trichlorobenzene is a pollutant from textile finishing factories and industrial chemical manufacturing.0.08 ppb
0.9 ppb
No
5 ppb
No
70 ppb
n-Butylbenzenen-Butylbenzene is an intermediate for chemical manufacturing and a raw material for liquid crystals.0.18 ppb
1.8 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
o-Chlorotolueneo-Chlorotoluene is a solvent and a chemical intermediate used in production of pharmaceuticals, pesticides, synthetic rubber and dyes.0.12 ppb
1.2 ppb
No
100 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
BromochloromethaneBromochloromethane is a tap water disinfection byproduct; it is also used as an intermediate in chemical manufacturing and a fire extinguishing agent.0.03 ppb
0.3 ppb
No
50 ppb
Legal at any levelThis is the Federal Limit. State Limits may be lower.
1,2,3-Trichlorobenzene1,2,3-Trichlorobenzene is a solvent and an intermediate for chemical manufacturing that was used historically as an insecticide for termite control.0.11 ppb
1.1 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.0.14 ppb
1.4 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
ManganeseManganese is a naturally occurring element released from mineral deposits as well as industrial use.3.33 ppb
10 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 - 95 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-Trichloropropane, 1,2-Dichloroethane, 1,2-Dichloropropane, 1,3-Dichloropropane, 1,3-Dichloropropene, 2,2-Dichloropropane, 2,4,5-TP (Silvex), 2,4-d, 3-Hydroxycarbofuran, Alachlor (Lasso), Aldicarb, Aldicarb sulfone, Aldicarb sulfoxide, Aldrin, Alpha particle activity (excl radon and uranium), Antimony (total), Arsenic (total), Atrazine, Barium (total), Benzene, Benzo[a]pyrene, Beryllium (total), Bromobenzene, Bromomethane, Butachlor, Cadmium (total), Carbaryl, Carbofuran, Carbon tetrachloride, Chlordane, Chloroethane, Chloromethane, Chromium (total), cis-1,2-Dichloroethylene, Cyanide, Dalapon, Di(2-Ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Dibromoacetic acid, Dibromomethane, Dicamba, Dichloroacetic acid, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Dieldrin, Dinoseb, Endrin, Ethylene dibromide (EDB), Gross beta particle activity (pCi/L), Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorocyclopentadiene, Lindane, m-Dichlorobenzene, Mercury (total inorganic), Methomyl, Methoxychlor, Metolachlor, Metribuzin, Monobromoacetic acid, Monochloroacetic acid, Monochlorobenzene (Chlorobenzene), Mtbe, Naphthalene, Nitrate, Nitrate & nitrite, Nitrite, o-Dichlorobenzene, Oxamyl (Vydate), p-Chlorotoluene, p-Dichlorobenzene, Pentachlorophenol, Picloram, Propachlor, Selenium (total), Simazine, Tetrachloroethylene, Thallium (total), Total haloacetic acids (HAAs), Total polychlorinated biphenyls (PCBs), Toxaphene, trans-1,2-Dichloroethylene, Trichloroacetic acid, Trichloroethylene, Trichlorofluoromethane, Vinyl chloride

Pollution Summary

26Total Contaminants Detected (2004 - 2009)

Copper, Lead (total), Manganese, p-Isopropyltoluene, Hexachlorobutadiene, 1,2,4-Trichlorobenzene, 1,2,4-Trimethylbenzene, 1,2,3-Trichlorobenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, tert-Butylbenzene, sec-Butylbenzene, Bromochloromethane, Chloroform, Bromoform, Bromodichloromethane, Dibromochloromethane, Total trihalomethanes (TTHMs), Xylenes (total), o-Chlorotoluene, Toluene, Ethylbenzene, Isopropylbenzene, Styrene, n-Propylbenzene, Radium-228

1Agricultural Pollutants
(pesticides, fertilizer, factory farms)

Ethylbenzene

6Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

Copper, Lead (total), tert-Butylbenzene, sec-Butylbenzene, Xylenes (total), n-Propylbenzene

20Industrial Pollutants

Lead (total), Manganese, p-Isopropyltoluene, Hexachlorobutadiene, 1,2,4-Trichlorobenzene, 1,2,4-Trimethylbenzene, 1,2,3-Trichlorobenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, tert-Butylbenzene, sec-Butylbenzene, Bromochloromethane, Xylenes (total), o-Chlorotoluene, Toluene, Ethylbenzene, Isopropylbenzene, Styrene, n-Propylbenzene, Radium-228

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

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

4Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Copper, Lead (total), Manganese, Radium-228

13Unregulated Contaminants
EPA has not established a maximum legal limit in tapwater for these contaminants

Lead (total), p-Isopropyltoluene, Hexachlorobutadiene, 1,2,4-Trimethylbenzene, 1,2,3-Trichlorobenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, tert-Butylbenzene, sec-Butylbenzene, Bromochloromethane, o-Chlorotoluene, Isopropylbenzene, n-Propylbenzene

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.