Public water system record
City of Westminster
Serves Westminster and Shaw Heights, Adams County and Jefferson County, CO · 202,078 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for City of Westminster in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- City of Westminster draws water from 2 surface water intakes (1 of them for emergency, seasonal or other part-time use).
- Record on file since 1988, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 8 unknown out of 33,619 service lines.
Check whether City of Westminster 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
Full record since 1988
EPA's records for City of Westminster go back to 1988. Before October 19, 2016 they list no health-based violations and 7 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 7 |
| 2020s | 0 | 3 |
Where the water comes from
City of Westminster draws water from 2 surface water intakes (1 of them for emergency, seasonal or other part-time use). It also has emergency connections to City of Thornton, City of Arvada, Denver Water Board, City of Northglenn, Crestview WSD and County of Broomfield City and. 2 other community water systems buy water from City of Westminster. 2 other public water systems have emergency connections to City of Westminster.
Emergency or part-time connections to
- City of Thornton Thornton, CO
- City of Arvada Arvada, CO
- Denver Water Board Denver, CO
- City of Northglenn Northglenn, CO
- Crestview WSD Denver, CO
- County of Broomfield City and Broomfield, CO
Community systems that buy water from it
- Casa Estates MHP Westminster, CO
- City of Federal Heights Federal Heights, CO
Annual water quality report
City of Westminster 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.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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