EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the Washington State Department of Health, 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.
Includes chemicals detected in 2015 for which annual utility averages exceeded an EWG-selected health guideline established by a federal or state public health authority; radiological contaminants detected between 2010 and 2015.
Dichloromethane (methylene chloride)✕
Methylene chloride is a common industrial solvent used for paint stripping, vapor degreasing, printing, electronics manufacturing and cleaning. It causes cancer and liver damage in animal studies.
How your levels compareThe State and National averages were calculated using the averages of the contaminant measurements for each utility in 2015.
ppb = parts per billion.
Health risks of dichloromethane (methylene chloride) in excess of health guideline
The health guideline of 4 ppb for dichloromethane (methylene chloride) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
Testing summary by quarter
ABOVE HEALTH GUIDELINE
ABOVE LEGAL LIMIT
- Utility Average 2015: 0.670 ppb
- Health Guideline Exceeded 2015: No
- Legal Limit Exceeded 2015: No
2010 2011 2012 2013 2014 2015 0.670 ppb 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 authori.
Click on each pollution source to see from which source contaminants come.
Duggan Falls compliance with legally mandated federal standards
- From October 2015 to September 2018, Duggan Falls 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-Dichloroethane, 1,2-Dichloropropane, 1,3,5-Trimethylbenzene, 1,3-Dichloropropane, 1,3-Dichloropropene, 2,2-Dichloropropane, 2,4,5-TP (Silvex), 2,4-D, 2,4-DB, Acifluorfen (Blazer), Antimony, Arsenic, Barium, Benzene, Benzoic acid, Beryllium, Bromobenzene, Bromochloromethane, Bromomethane, Cadmium, Carbon tetrachloride, Chloramben, Chloroethane, Chloroform, Chloromethane, Chromium (total), cis-1,2-Dichloroethylene, cis-1,3-Dichloropropene, Cyanide, Dalapon, DCPA di-acid degradate, Dibromomethane, Dicamba, Dichlorodifluoromethane, Dinoseb, Ethylbenzene, Hexachlorobutadiene, Isopropylbenzene, m- & p-Xylene, m-Dichlorobenzene, Manganese, Mercury (inorganic), Monochlorobenzene (chlorobenzene), n-Butylbenzene, n-Propylbenzene, Naphthalene, o-Chlorotoluene, o-Dichlorobenzene, o-Xylene, p-Chlorotoluene, p-Dichlorobenzene, p-Isopropyltoluene, Pentachlorophenol, Picloram, sec-Butylbenzene, Selenium, Silver, Styrene, tert-Butylbenzene, Tetrachloroethylene (perchloroethylene), Thallium, Toluene, trans-1,2-Dichloroethylene, trans-1,3-Dichloropropene, Trichloroethylene, Trichlorofluoromethane, Vinyl chloride, Xylenes (total)