Home/ Directory/ CO/ SOUTH ADAMS COUNTY WSD

Water system · PWSID CO0101140

SOUTH ADAMS COUNTY WSD

COMMERCE CITY, CO · ~75,559 people served

Check your exact address → COMMERCE CITY overview
100
Excellent
PurityRadar safety score

PWSID

CO0101140

State

Colorado

City

COMMERCE CITY

Population served

75,559

Primary source

SWP

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

Lithium

23,100 ppt

limit —

No federal limit

PFBA

5 ppt

limit —

No federal limit

PFHxA

3.8 ppt

limit —

No federal limit

PFPeA

3 ppt

limit —

No federal limit

Violations & enforcement

No violations are on record for this system in EPA’s SDWIS/ECHO data.

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

Manganese

9 stations · latest Mar 2026

124 · max 1,340 ug/L · 1,011

Copper

7 stations · latest Dec 2025

2.4 · max 17.7 ug/L · 987

Lead

9 stations · latest Mar 2026

0.7 · max 10.9 ug/L · 625

Arsenic

9 stations · latest Mar 2026

1.2 · max 3 ug/L · 562

Fluoride

8 stations · latest Mar 2026

0.685 · max 1.47 mg/L · 492

Nitrate

2 stations · latest Dec 2025

1.63 · max 4.39 mg/L · 96

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 CO0101140 — 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.