Know Your Environment. Protect Your Health.

CONTAMINANT

DCPA di-acid degradate

STATES DETECTED

1

serves

78,047

utilities detected

30

Overview

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.

Want to remove
DCPA di-acid degradate from your water?

Try these filter technologies:

Activated Carbon

Reverse Osmosis

understand filter technology

DCPA di-acid degradate around the Country

UTILITIES WITH CONTAMINATION
State Utilities People Served
Washington3078,047

Utilities with the highest amounts of DCPA di-acid degradate, 2021-2023

ALL UTILITIES
LARGE UTILITIES
Utility Location Tests Average level People served
Summers Circle Water LlcWalla Walla, WA10 of 1083.4 ppb82
Valle Lindo HomesWalla Walla, WA3 of 340.8 ppb787
Golden Valley Water AssociationQuincy, WA3 of 333.6 ppb138
Weiler-martin Tracts Water AssociationQuincy, WA1 of 131.3 ppb1,163
Quincy Water Department City OfYakima, WA12 of 1221.2 ppb8,415
Neals Valley View Addition Water Co.Yakima, WA1 of 12.88 ppb62
Sportsman Trailer ParkEllensburg, WA1 of 12.10 ppb151
Admiral Water Users AssociationMoses Lake, WA1 of 11.97 ppb74
Arlenes AdditionBurbank, WA1 of 11.93 ppb480
Country Corner Mobile Home ParkGig Harbor, WA1 of 11.24 ppb95
Lakeview Park Water AssociationQuincy, WA1 of 20.995 ppb1,259
Paterson Heights Water AssociationPaterson, WA1 of 10.700 ppb85
Sagedale ApartmentsEllensburg, WA1 of 30.600 ppb40
Consolidated Irrigation District 14*Walla Walla, WA6 of 80.487 ppb1,555
Warden City OfWarden, WA7 of 80.424 ppb4,674
Blalock Orchard District 10Walla Walla, WA1 of 10.337 ppb250
College Place Water Department*College Place, WA7 of 90.225 ppb8,147
Tieton Hills Water Co.Yakima, WA1 of 10.220 ppb75
Hydro Irrigation District No 9*Walla Walla, WA1 of 10.218 ppb252
Blalock Orchards District 12Walla Walla, WA1 of 10.218 ppb193
Alps Mobile Home ParkYakima, WA1 of 10.210 ppb150
Green Tank Irr District 11Walla Walla, WA2 of 20.160 ppb553
Royal City WaterRoyal City, WA1 of 10.160 ppb3,389
City of SunnysideSunnyside, WA1 of 20.160 ppb17,037
Othello Water Department*Othello, WA7 of 130.137 ppb8,725
Adams County Water District #1Othello, WA7 of 130.137 ppb870
Brixey H2aYakima, WA3 of 30.125 ppb96
Diamond Point Water SystemCle Elum, WA1 of 10.120 ppb100
Basin City Water Sewer DistrictMesa, WA1 of 10.0688 ppb1,740
City of West RichlandWest Richland, WA2 of 40.0451 ppb17,410

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report DCPA di-acid degradate, but it likely has the contaminant in its water supply.

MORE
LESS
UtilityLocationTestsAverage levelPeople served
City of SunnysideSunnyside, WA1 of 20.160 ppb17,037
City of West RichlandWest Richland, WA2 of 40.0451 ppb17,410

Know the Standards

Understand EWG’s guidelines on contaminants in your water.

view ewg’s standards

Take Action

Interested in supporting other causes? Learn more about our ongoing campaigns and how you can make a difference.

LEARN MORE

Need help finding a filter?

Discover top-rated filters that protect your family from harmful contaminants.

GET THE GUIDE

We’re in this together

Donate today and join the fight to protect our environmental health.

DONATE TODAY

Protect your water

Sign our petition to protect PFAS drinking water standards

TAKE ACTION