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Public water system record

City of Brighton

Serves Brighton, Adams County, CO · 56,304 people served

Federal records show 1 health-based violation and no monitoring/reporting issues for City of Brighton in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • CO0101025
  • BRIGHTON
  • CO
  • 56,304 served

System profile

Source water Purchased surface water
ZIP 80601
EPA system ID CO0101025

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • City of Brighton draws water from 10 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.0939 mg/L, federal limit 0.08 mg/L (1.2 times the limit), 2023.
  • Most recent enforcement action: boil water order by Colorado, July 2013.
  • Record on file since 1984, with 5 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 1,730 unknown out of 13,031 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.0939 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Apr 1, 2023 Resolved No

Full record since 1984

EPA's records for City of Brighton go back to 1984. Before October 19, 2016 they list 5 health-based violations (3 resolved, 2 archived by EPA without a recorded fix) and 34 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 2 0
1990s 1 0
2000s 1 31
2010 to October 18, 2016 1 3
2020s 1 0

Most recent health-based violation before October 19, 2016: Total Coliform (acute), began July 2013, Resolved.

Show all 5 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform (acute)
Contaminant limit exceeded
 Jul 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 2000 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
 Aug 21, 1986 Archived
Selenium
Contaminant limit exceeded
 Jan 13, 1984 Archived

Enforcement actions

Colorado regulators issued 1 boil water order to City of Brighton in 2013. The most recent was a boil water order in July 2013.

Date By Action Violations covered
Jul 9, 2013 Colorado Boil water order 1 violation (1 health-based): Total Coliform

What the violations mean

Total Trihalomethanes (TTHMs)

1 incident

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

City of Brighton draws water from 10 wells. It also buys water from City of Thornton. It also has a seasonal connection to Denver Water Board. 2 other community water systems buy water from City of Brighton.

Buys water from

Emergency or part-time connections to

Community systems that buy water from it

Annual water quality report

City of Brighton 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