Public water system record
City of Cortez
Serves Cortez, Montezuma County, CO · 8,770 people served
Federal records show 1 health-based violation and no monitoring/reporting issues for City of Cortez in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 0
Key facts
- City of Cortez draws water from 1 surface water intake.
- Record on file since 1989, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 261 unknown out of 3,846 service lines.
Check whether City of Cortez serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2020 | Resolved | Yes |
Full record since 1989
EPA's records for City of Cortez go back to 1989. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 74 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 7 |
| 1990s | 0 | 1 |
| 2000s | 1 | 32 |
| 2010 to October 18, 2016 | 0 | 34 |
| 2020s | 1 | 0 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began June 2005, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 2005 | Resolved |
What the violations mean
Interim Enhanced Surface Water Treatment Rule
1 incidentThe system did not meet a filtration or treatment requirement for surface water
Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through
Where the water comes from
City of Cortez draws water from 1 surface water intake. 4 other community water systems buy water from City of Cortez.
Community systems that buy water from it
- Montezuma Cnty WD No 1 Cortez, CO
- Neighbors of 7th Street MHP Cortez, CO
- Oak Meadows MHP Cortez, CO
- Towaoc Water System Towaoc, CO
Annual water quality report
City of Cortez must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Colorado.
Certified drinking water labs by state EPA guidance for private wells