- EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
- Lithium: found in 2 of 4 samples, average 6.6 µg/L, highest 16.9 µg/L (EPA UCMR 5 testing, Sep 2024–Jun 2025)
Public EPA test results
Can you drink Montrose tap water? What EPA records show
EPA system ID CO0143518 · serves Montrose County, CO · about 19,305 people (EPA records)
Here's what EPA has on file for this water system: its testing for newer contaminants like PFAS (UCMR 5), lead testing and violations. It's not a test of your tap, and there's no Water Score here.
Public EPA test results
Montrose City of (EPA CO0143518)
EPA data as of October 14, 2026. For Montrose's main utility, Montrose City of: We found no health-standard violations in EPA's records for this system (CO0143518) since July 1, 2021, as of October 14, 2026. PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
What EPA records show for Montrose City of, as of October 14, 2026
We found no health-standard violations in EPA's records for this system (CO0143518) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for Montrose City of (SDWIS). Data as of October 14, 2026.
This system buys water from Project 7 WA (CO0143621); see that system's records.
Source: Project 7 WA (CO0143621) report. Data as of October 14, 2026.
EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Montrose City of use chloramine?
We didn't find chloramine in Montrose City of's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.