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Public water system record

Evergreen Lake Company

Serves an area of Gunnison County, CO · 431 people served

Federal records show 5 health-based violations and 2 monitoring/reporting issues for Evergreen Lake Company in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.

  • CO0126121
  • CIMARRON
  • CO
  • 431 served

System profile

Source water Surface water
ZIP 81220
EPA system ID CO0126121

Verify this system on EPA ECHO →

Health-based violations, last 10 years
5
Resolved
5
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Evergreen Lake Company draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 71 µg/L, federal limit 60 µg/L (1.2 times the limit), 2018.
  • Record on file since 2011, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 507 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
Surface Water Treatment Rule
Treatment technique failure
 120 Dec 1, 2022 Resolved No
Surface Water Treatment Rule
Treatment technique failure
 120 Nov 1, 2022 Resolved No
Surface Water Treatment Rule
Treatment technique failure
 120 Oct 1, 2022 Resolved No
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
 210 May 1, 2018 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 71 µg/L, federal limit 60 µg/L (1.2 times the limit)
 220 Apr 1, 2018 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
 Jul 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
 Jul 1, 2021 Resolved

Full record since 2011

EPA's records for Evergreen Lake Company go back to 2011. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
2010 to October 18, 2016 1 1
October 19, 2016 to 2019 2 0
2020s 3 2

Most recent health-based violation before October 19, 2016: Stage 1 Disinfection Byproducts Rule, began September 2015, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
 Sep 2, 2015 Resolved

What the violations mean

Surface Water Treatment Rule

3 incidents

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Stage 1 Disinfection Byproducts Rule

1 incident

The system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule

Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk

Haloacetic Acids (HAA5)

1 incident

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Where the water comes from

Evergreen Lake Company draws water from 1 surface water intake.

Annual water quality report

Evergreen Lake Company 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Evergreen Lake Company for a copy.

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