PWSID
CO0143518
State
Colorado
City
MONTROSE
Population served
19,305
Primary source
SWP
Score history
No change since tracking began Jun 18, 2026.
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 Mar 2025). Levels in parts per trillion (ppt).
Lithium
9,500 ppt
limit —
Violations & enforcement
2
Violations on record
2
Unaddressed
0
Health-based
5
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →
Recent enforcement actions
- State action · SIA Nov 2025
- State action · SIA Sep 2025
- State action · SIA Jun 1990
- State action · SIA Mar 1990
- State action · SIA Mar 1990
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.
Manganese
2 stations · latest Nov 2024
Copper
2 stations · latest Nov 2024
Arsenic
2 stations · latest Nov 2024
Nitrate
1 station · latest Aug 2023
Lead
2 stations · latest Nov 2023
Fluoride
1 station · latest Nov 2023
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 CO0143518 — 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.