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Water system · PWSID WA5385050

SUMMIT WATER & SUPPLY CO

100
Excellent
PurityRadar safety score

PWSID

WA5385050

State

Washington

City

Tacoma

Population served

16,109

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

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

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 May 2023). Levels in parts per trillion (ppt).

PFPeA

3.1 ppt

limit —

No federal limit

Violations & enforcement

4

Violations on record

0

Unaddressed

0

Health-based

7

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2018. Official EPA record →

Other · EPA contaminant 7000 began Jul 2018 Resolved
Monitoring & reporting · Nitrate began Jan 2013 Resolved
Monitoring & reporting · Total coliform began Jul 2010 Resolved
Monitoring & reporting · Nitrate began Jan 2003 Resolved

Recent enforcement actions

  • State action · SOX Oct 2018
  • State action · SOX May 2014
  • State action · SOX Aug 2010
  • State action · SOX Jan 2004
  • State action · SFK Apr 1999
  • State action · SOX Jul 1998
  • State action · SIA Aug 1993

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

3 stations · latest Sep 2024

2.22 · max 2.8 mg/L · 3

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 WA5385050 — 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.