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Water system · PWSID WA5305800

BENTON CITY WATER

Benton City, WA · ~5,626 people served

Check your exact address → Benton City overview

Fair

PurityRadar safety score

PWSID

WA5305800

State

Washington

City

Benton City

Population served

5,626

Primary source

Groundwater

Score history

▼ 47 points — the score moved from 100 to 53 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 53

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Nov 2023). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

8.1 ppt

limit 4 ppt

Above EPA limit · 2.0×

PFHxS

Perfluorohexanesulfonic acid

12 ppt

limit 10 ppt

Above EPA limit · 1.2×

Lithium

15,400 ppt

limit —

No federal limit

PFPeA

4.9 ppt

limit —

No federal limit

PFHxA

4.3 ppt

limit —

No federal limit

PFPeS

4.2 ppt

limit —

No federal limit

PFBS

3.7 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2014. Official EPA record →

Other · EPA contaminant 7000 began Jul 2014 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Monitoring & reporting · Nitrate began Jul 2010 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2010 Resolved

Monitoring & reporting · Nitrate began Jan 2006 Resolved

Monitoring & reporting · EPA contaminant 2032 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2931 began Jan 2002 Resolved

Monitoring & reporting · EPA contaminant 2946 began Jan 2002 Resolved

Monitoring & reporting · EPA contaminant 2931 began Jan 2002 Resolved

Monitoring & reporting · EPA contaminant 2946 began Jan 2002 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1998 Resolved

Recent enforcement actions

State action · SOX Dec 2014
State action · SOX Sep 2013
State action · SOX Sep 2012
State action · SOX Dec 2010
EPA/federal action · EOX Aug 2009
State action · SOX Jan 2008
State action · SOX Jan 2008
State action · SOX Jan 2008

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Aug 2023

0.732 · max 2.54 mg/l as N · 118

Arsenic

1 station · latest Dec 2023

0.95 · max 4.3 ug/l · 67

Fluoride

1 station · latest Dec 2023

0.11 · max 0.23 mg/l · 66

Atrazine

1 station · latest Nov 2023

3.6 · max 40.5 ng/l · 34

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system WA5305800 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.