Tap Truth EPA drinking water records, in plain English

Public water system record

Town of Lyons

Serves Lyons, Boulder County, CO · 2,990 people served

Federal records show no health-based violations and no monitoring or reporting issues for Town of Lyons in the last ten years.

  • CO0107496
  • LYONS
  • CO
  • 2,990 served

System profile

Source water Purchased surface water
ZIP 80540
EPA system ID CO0107496

Verify this system on EPA ECHO →

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

Key facts

  • Town of Lyons buys its water from City of Longmont.
  • Most recent formal enforcement: compliance order (no penalty) by Colorado, June 1998.
  • Record on file since 1992, with 26 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 240 unknown out of 962 service lines.

Check whether Town of Lyons serves your address

Address suggestions by Mapbox

Health-based violations

Since October 2016

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

None since October 2016, and no monitoring or reporting violations either.

Full record since 1992

EPA's records for Town of Lyons go back to 1992. Before October 19, 2016 they list 26 health-based violations (26 resolved) and 9 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 24 7
2000s 2 2

Most recent health-based violation before October 19, 2016: Total Coliform, began September 2009, Resolved.

Show all 26 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Sep 1, 2009 Resolved
Total Coliform
Contaminant limit exceeded
 Aug 1, 2008 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
 May 1, 1999 Resolved
Lead and Copper Rule
Treatment technique failure
 Jan 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Apr 1, 1998 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Mar 1, 1998 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Feb 1, 1998 Resolved
Lead and Copper Rule
Treatment technique failure
 Jan 1, 1998 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jan 1, 1998 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Dec 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Nov 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Oct 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Sep 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Aug 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jun 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 May 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Apr 1, 1997 Resolved
Lead and Copper Rule
Treatment technique failure
 Jan 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Sep 1, 1996 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Aug 1, 1996 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1996 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jun 1, 1996 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1995 Resolved
Surface Water Treatment Rule
Treatment technique failure
 May 1, 1995 Resolved

Enforcement actions

Colorado regulators took 1 formal enforcement action against Town of Lyons in 1998, filed as 13 records in EPA's data. The most recent was a compliance order (no penalty) in June 1998.

Date By Action Violations covered
Jun 19, 1998 Colorado Compliance order (no penalty) 13 violations (12 health-based): Total Coliform, Surface Water Treatment Rule

Where the water comes from

Town of Lyons buys its water from City of Longmont. It lists no wells or intakes of its own. 1 smaller public system such as schools, businesses or campgrounds buys water from Town of Lyons.

Buys water from

Annual water quality report

Town of Lyons 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