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Water system · PWSID CO0118020

COTTONWOOD WSD

ENGLEWOOD, CO · ~10,867 people served

Check your exact address → ENGLEWOOD overview
92
Excellent
PurityRadar safety score

PWSID

CO0118020

State

Colorado

City

ENGLEWOOD

Population served

10,867

Primary source

SWP

Score history

▼ 8 points — the score moved from 100 to 92 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 92

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

PFOA

Perfluorooctanoic acid

4 ppt

limit 4 ppt

Near EPA limit

Lithium

29,300 ppt

limit —

No federal limit

PFPeA

6.2 ppt

limit —

No federal limit

PFBA

5.6 ppt

limit —

No federal limit

PFHxA

5.4 ppt

limit —

No federal limit

PFBS

4.7 ppt

limit —

No federal limit

Violations & enforcement

44

Violations on record

0

Unaddressed

0

Health-based

37

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Resolved
Other · EPA contaminant 7500 began Mar 2025 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2024 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2022 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2035 began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 2033 began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 2010 began Jan 2017 Resolved

Recent enforcement actions

  • State action · SOX Dec 2025
  • State action · SIE Jul 2025
  • State action · SIA Jul 2025
  • State action · SIA Apr 2025
  • State action · SOX Apr 2025
  • State action · SOX Feb 2025
  • State action · SIA Jan 2025
  • State action · SIE Jan 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

Nitrate

1 station · latest Mar 2024

2.07 · max 2.68 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 CO0118020 — 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.