Key Ridge Water System
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 U.S. EPA (January 2021 - March 2021), tap water provided by this water utility was in compliance with federal health-based drinking water standards.
- Pierce County, Washington
- Serves: 63
- Data available: 2014-2019
- Source: Groundwater
Legal ≠ Safe
EWG Health Guidelines fill the gap in outdated government standards.
The federal government’s legal limits are not health-protective. The EPA has not set a new tap water standard in almost 20 years, and some standards are more than 40 years old.
NitratePotential Effect: cancer5x EWG'S HEALTH GUIDELINE
Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.
Nitrate was found at 5 times above EWG's Health Guideline.
EWG Health Guideline
ppm = parts per million
The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.
Runoff & Sprawl
Includes chemicals detected in 2017-2019 for which annual utility averages exceeded an EWG-selected health guideline established by a federal or state public health authority.
DCPA di-acid degradate
DCPA di-acid degradatemore about
DCPA di-acid degradate is a residue of the herbicide dacthal, or DCPA, which is used for urban, household and agricultural applications. Dacthal is a possible human carcinogen whose use was limited by the EPA in 2005 due to concerns about water contamination.
How your levels compare
ppb = parts per billion
Runoff & Sprawl
Includes chemicals detected in 2017-2019 for which annual utility averages were lower than an EWG-selected health guideline established by a federal or state public health authori.
Other Contaminants Tested✕
Chemicals tested for but not detected from 2014 to 2019:
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 , 2,4-DB , 4,4'-dde , 4-Nitrophenol , Acenaphthylene , Acifluorfen (Blazer) , Alachlor (Lasso) , Aldrin , Anthracene , Atrazine , Bentazon (Basagran) , Benzene , Benzoic acid , Benzo[a]anthracene , Benzo[a]pyrene , Benzo[b]fluoranthene , Benzo[k]fluoranthene , Bromacil , Bromobenzene , Bromochloromethane , Bromodichloromethane , Bromoform , Bromomethane , Butachlor , Butyl benzyl phthalate , Carbon tetrachloride , Chloramben , Chlordane , Chloroethane , Chloroform , Chloromethane , Chrysene , cis-1,2-Dichloroethylene , cis-1,3-Dichloropropene , Dalapon , Di(2-ethylhexyl) adipate , Di(2-ethylhexyl) phthalate , Di-n-butyl phthalate , Dibromochloromethane , Dibromomethane , Dicamba , Dichlorodifluoromethane , Dichloromethane (methylene chloride) , Dichlorprop , Dieldrin , Diethyl phthalate , Dimethyl phthalate , Dinoseb , Endrin , EPTC (Eptam) , Ethylbenzene , Ethylene dibromide , Fluoranthene , Fluorene , Heptachlor , Heptachlor epoxide , Hexachlorobenzene (HCB) , Hexachlorobutadiene , Hexachlorocyclopentadiene , Isopropylbenzene , Lindane , m-Dichlorobenzene , Manganese , Methoxychlor , Metolachlor , Metribuzin , Molinate , Monochlorobenzene (chlorobenzene) , n-Butylbenzene , n-Propylbenzene , Naphthalene , o-Chlorotoluene , o-Dichlorobenzene , p-Chlorotoluene , p-Dichlorobenzene , p-Isopropyltoluene , Para-para DDT , Pentachlorophenol , Phenanthrene , Picloram , Polychlorinated biphenyls (PCBs) , Propachlor , Pyrene , Radium, combined (-226 & -228) , sec-Butylbenzene , Simazine , Styrene , Terbacil , tert-Butylbenzene , Tetrachloroethylene (perchloroethylene) , Toluene , Total trihalomethanes (TTHMs) , Toxaphene , trans-1,2-Dichloroethylene , trans-1,3-Dichloropropene , Trichloroethylene , Trichlorofluoromethane , Trifluralin , Vinyl chloride , Xylenes (total)
Key Ridge Water System compliance with legally mandated federal standards:
- From April 2019 to March 2021, Key Ridge Water System complied with health-based drinking water standards.
Information in this section on Key Ridge Water System comes from the U.S. EPA Enforcement and Compliance History Online database (ECHO).LEARN MORE ABOUT THIS UTILITY
Water Filters That Can Reduce Contaminant Levels
|Contaminant||Activated Carbon||Reverse Osmosis||Ion Exchange|
|DCPA di-acid degradate||✔||✔|
Contact Your Local Official
One of the best ways to push for cleaner water is to hold accountable the elected officials who have a say in water quality – from city hall and the state legislature to Congress all the way to the Oval Office – by asking questions and demanding answers.LEARN MORE
Filter Out Contaminants
Check out our recommendations for filters to protect your water against the detected contaminants.EWG’S WATER FILTER GUIDE