EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the Maryland Department of the Environment, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the EPA (July 2018 - September 2018), tap water provided by this water utility was in compliance with federal health-based drinking water standards.
Chloromethane is an industrial solvent, aerosol propellant and a refrigerant. It also forms as a byproduct of water disinfection. The EPA classifies chloromethane as possibly carcinogenic to humans.
How your levels compareThe State and National averages were calculated using the averages of the contaminant measurements for each utility in 2010-2015.
ppb = parts per billion.
Health risks of chloromethane in excess of health guideline
The health guideline of 2.69 ppb for chloromethane was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.
Testing summary by quarter
ABOVE HEALTH GUIDELINE
- Utility Average 2010-2015: 0.600 ppb
- Health Guideline Exceeded 2010-2015: No
- Legal Limit Exceeded 2010-2015: No
2010 2011 2012 2013 2014 2015 0.600 ppb No No
Fluoride occurs naturally in surface and groundwater and is also added to drinking water by many water systems.
How your levels compareThe State and National averages were calculated using the averages of the contaminant measurements for each utility in 2015.
ppm = parts per million.
Testing summary by quarter
ABOVE LEGAL LIMIT
- Utility Average 2015: 0.180 ppm
- Health Guideline Exceeded 2015: No
- Legal Limit Exceeded 2015: No
2010 2011 2012 2013 2014 2015 0.180 ppm No No
Includes chemicals detected in 2015 for which annual utility averages were lower than an EWG-selected health guideline established by a federal or state public health authority; chemicals detected under the EPA's Unregulated Contaminant Monitoring Rule (UCMR 3) program in 2013 to 2015, for which annual utility averages were lower than an EWG-selected health guideline established by a federal or state public health authority.
Click on each pollution source to see from which source contaminants come.
Barrelville compliance with legally mandated federal standards
- From October 2015 to September 2018, Barrelville complied with health-based drinking water standards.
- 12 QUARTERSin violation of any federal drinking water standard from October 2015 to September 2018
Other contaminants tested✕
Contaminants detected between 2010 and 2014 and were not part of EPA's UCMR-3 testing program:
Chemicals tested for but not detected from 2010 to 2015:
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, 1,2,3-Trichlorobenzene, 1,2,3-Trichloropropane, 1,2,4-Trichlorobenzene, 1,2,4-Trimethylbenzene, 1,2-Dibromo-3-chloropropane (DBCP), 1,2-Dichloroethane, 1,2-Dichloropropane, 1,3,5-Trimethylbenzene, 1,3-Dichloropropane, 1,3-Dichloropropene, 2,2-Dichloropropane, 2,4,5-T, 2,4,5-TP (Silvex), 2,4-D, 3-Hydroxycarbofuran, Alachlor (Lasso), Aldicarb, Aldicarb sulfone, Aldicarb sulfoxide, Aldrin, Antimony, Arsenic, Atrazine, Barium, Benzene, Benzo[a]pyrene, Beryllium, Bromobenzene, Bromochloromethane, Bromodichloromethane, Bromoform, Bromomethane, Butachlor, Cadmium, Carbaryl, Carbofuran, Carbon tetrachloride, Chlordane, Chloroethane, Chloroform, Chromium (total), cis-1,2-Dichloroethylene, Cyanide, Dalapon, Di(2-ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Dibromochloromethane, Dibromomethane, Dicamba, Dichlorodifluoromethane, Dichloromethane (methylene chloride), Dieldrin, Dinoseb, Endrin, Ethylbenzene, Ethylene dibromide, Heptachlor, Heptachlor epoxide, Hexachlorobenzene (HCB), Hexachlorobutadiene, Hexachlorocyclopentadiene, Isopropylbenzene, Lindane, m-Dichlorobenzene, m-Xylene, Mercury (inorganic), Methomyl, Methoxychlor, Metolachlor, Metribuzin, Monochlorobenzene (chlorobenzene), MTBE, n-Butylbenzene, n-Propylbenzene, Naphthalene, Nitrate & nitrite, o-Chlorotoluene, o-Dichlorobenzene, o-Xylene, Oxamyl (Vydate), p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, p-Xylene, Pentachlorophenol, Picloram, Propachlor, Radium, combined (-226 & -228), Radium-228, sec-Butylbenzene, Selenium, Simazine, Styrene, tert-Butylbenzene, Tetrachloroethylene (perchloroethylene), Thallium, Toluene, Total trihalomethanes (TTHMs), trans-1,2-Dichloroethylene, Trichloroethylene, Trichlorofluoromethane, Vinyl chloride, Xylenes (total)