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Water system · PWSID WA5391200

VANCOUVER CITY OF

Vancouver, WA · ~373,047 people served

Check your exact address → Vancouver overview
49
Fair
PurityRadar safety score

PWSID

WA5391200

State

Washington

City

Vancouver

Population served

373,047

Primary source

Groundwater

Score history

▼ 51 points — the score moved from 100 to 49 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 49

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).

PFOA

Perfluorooctanoic acid

5.6 ppt

limit 4 ppt

Above EPA limit · 1.4×

PFOS

Perfluorooctanesulfonic acid

4.4 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFHxS

Perfluorohexanesulfonic acid

4.9 ppt

limit 10 ppt

Below EPA limit

PFBS

3.6 ppt

limit —

No federal limit

PFPeA

3.1 ppt

limit —

No federal limit

PFHpA

3 ppt

limit —

No federal limit

PFHxA

3 ppt

limit —

No federal limit

Violations & enforcement

48

Violations on record

0

Unaddressed

0

Health-based

5

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2015. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2014 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2014 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2014 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2014 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2014 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2014 Resolved
Other · EPA contaminant 7000 began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 2976 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2969 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2380 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2982 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2981 began Oct 2004 Resolved

Recent enforcement actions

  • State action · SOX Mar 2015
  • State action · SOX Mar 2015
  • State action · SOX Oct 2013
  • State action · SOX Mar 2005
  • State action · SOX Aug 2004

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

Copper

24 stations · latest Feb 2024

1.62 · max 73.4 ug/L · 284

Lead

24 stations · latest Feb 2024

0.246 · max 19.5 ug/L · 278

Atrazine

1 station · latest Oct 2024

0.00447 · max 0.163 ug/L · 78

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 WA5391200 — 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.