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Water system · PWSID 090400089

Quechan Utility

Yuma, AZ · ~5,660 people served

Check your exact address → Yuma overview
85
Excellent
PurityRadar safety score

PWSID

090400089

State

Arizona

City

Yuma

Population served

5,660

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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 Jul 2024). Levels in parts per trillion (ppt).

Lithium

63,000 ppt

limit —

No federal limit

Violations & enforcement

486

Violations on record

8

Unaddressed

13

Health-based

441

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Sep 2025 Unaddressed
Monitoring & reporting · EPA contaminant 3014 began Jun 2025 Unaddressed
Treatment technique · EPA contaminant 0700 health-based began May 2025 Unaddressed
Monitoring & reporting · EPA contaminant 3014 began May 2025 Unaddressed
Monitoring & reporting · EPA contaminant 3014 began Apr 2025 Unaddressed
Reporting · EPA contaminant 5200 began Nov 2024 Unaddressed
Other · EPA contaminant 7500 began Dec 2021 Unaddressed
Other · EPA contaminant 7500 began Dec 2019 Unaddressed
Reporting · Lead & Copper Rule began Jun 2025 Resolved
Reporting · Lead & Copper Rule began May 2025 Resolved
Reporting · Lead & Copper Rule began Jan 2025 Resolved
Monitoring & reporting · Nitrate began Jan 2024 Resolved

Recent enforcement actions

  • EPA/federal action · EIA Dec 2025
  • EPA/federal action · EIA Sep 2025
  • EPA/federal action · EIA Sep 2025
  • EPA/federal action · EOX Jul 2025
  • EPA/federal action · EOX Jun 2025
  • EPA/federal action · EIA Jun 2025
  • EPA/federal action · EIA Jun 2025
  • EPA/federal action · EIA Jun 2025

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

Fluoride

1 station · latest Jan 2020

0.17 · max 0.19 mg/L · 2

Nitrate

1 station · latest Oct 2020

1.46 · max 1.46 mg/L · 1

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 090400089 — 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.