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Water system · PWSID CO0149160

BUTTERMILK MD

BASALT, CO · ~200 people served

Check your exact address → BASALT overview
100
Excellent
PurityRadar safety score

PWSID

CO0149160

State

Colorado

City

BASALT

Population served

200

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

253

Violations on record

12

Unaddressed

1

Health-based

142

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2026. Official EPA record →

Other · EPA contaminant 7500 began Jan 2026 Unaddressed
Other · EPA contaminant 7500 began Oct 2025 Unaddressed
Other · EPA contaminant 7500 began Jul 2025 Unaddressed
Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Other · EPA contaminant 7500 began Apr 2025 Unaddressed
Other · EPA contaminant 7500 began Jan 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jan 2025 Unaddressed
Other · EPA contaminant 7500 began Oct 2024 Unaddressed
Other · EPA contaminant 7500 began Jun 2024 Unaddressed
Other · EPA contaminant 7500 began Mar 2024 Unaddressed
Other · EPA contaminant 7500 began Dec 2023 Unaddressed
Other · EPA contaminant 7500 began Sep 2023 Unaddressed

Recent enforcement actions

  • State action · SIA Jan 2026
  • State action · SIA Oct 2025
  • State action · SIE Jul 2025
  • State action · SIA Jul 2025
  • State action · SIA Jul 2025
  • State action · SIA Apr 2025
  • State action · SIA Feb 2025
  • State action · SIA 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

Manganese

1 station · latest Nov 2024

13.3 · max 74.6 ug/L · 50

Copper

1 station · latest Nov 2024

1.8 · max 5.2 ug/L · 36

Arsenic

1 station · latest Nov 2024

0 · max 2 ug/L · 22

Lead

1 station · latest Jun 2024

0 · max 3 ug/L · 17

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 CO0149160 — 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.