Public water system record

Westcreek Lakes WD

Serves Westcreek, Douglas County, CO · 165 people served

Federal records show 8 health-based violations and 31 monitoring/reporting issues for Westcreek Lakes WD in the last ten years. The most serious issue in this window was a Fluoride violation that EPA lists as archived, not resolved.

  • CO0118085
  • WESTCREEK
  • CO
  • 165 served

System profile

Source water Groundwater under direct influence
ZIP 80863
EPA system ID CO0118085

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
6
Unresolved
0
Archived by EPA
2
Any acute record
No
Monitoring issues, last 10 years
31

Key facts

  • Westcreek Lakes WD draws water from 2 wells.
  • Highest measured level in the last 10 years: Fluoride, 4.1 mg/L, federal limit 4 mg/L (at or just above the limit), 2025.
  • Most recent formal enforcement: compliance order (no penalty) by Colorado, May 2010.
  • Record on file since 1995, with 16 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 70 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
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
330 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2025 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2025 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2025 Resolved No
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
330 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2025 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Mar 1, 2025 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Feb 1, 2025 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Public Notice
OTHER
Nov 7, 2025 Active
E. coli
Monitoring and reporting
Nov 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
E. coli
Monitoring and reporting
Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Public Notice
OTHER
Sep 21, 2025 Active
Public Notice
OTHER
Aug 9, 2025 Active
E. coli
Monitoring and reporting
Aug 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2025 Resolved
Public Notice
OTHER
Jul 6, 2025 Active
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2025 Resolved
E. coli
Monitoring and reporting
May 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Combined Radium (-226 and -228)
Monitoring and reporting
Oct 1, 2024 Resolved
Combined Uranium
Monitoring and reporting
Oct 1, 2024 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Oct 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2024 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Apr 1, 2024 Resolved
Combined Uranium
Monitoring and reporting
Apr 1, 2024 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Apr 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2024 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2023 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2021 Resolved

Full record since 1995

EPA's records for Westcreek Lakes WD go back to 1995. Before October 19, 2016 they list 16 health-based violations (15 resolved, 1 archived by EPA without a recorded fix) and 14 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 7
2000s 14 4
2010 to October 18, 2016 2 3
2020s 8 31

Most recent health-based violation before October 19, 2016: Fluoride, began April 2010, Resolved.

Show all 16 health-based violations before October 19, 2016
Contaminant Start date Status
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Apr 1, 2010 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.7 mg/L, federal limit 4 mg/L (1.2 times the limit)
Jan 1, 2010 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.7 mg/L, federal limit 4 mg/L (1.2 times the limit)
Oct 1, 2009 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.9 mg/L, federal limit 4 mg/L (1.2 times the limit)
Jul 1, 2009 Resolved
Fluoride
Contaminant limit exceeded
Measured 5.1 mg/L, federal limit 4 mg/L (1.3 times the limit)
Apr 1, 2009 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.9 mg/L, federal limit 4 mg/L (1.2 times the limit)
Jan 1, 2009 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.7 mg/L, federal limit 4 mg/L (1.2 times the limit)
Oct 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.6 mg/L, federal limit 4 mg/L (1.2 times the limit)
Jul 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.5 mg/L, federal limit 4 mg/L (1.1 times the limit)
Apr 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.45 mg/L, federal limit 4 mg/L (1.1 times the limit)
Jan 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.62 mg/L, federal limit 4 mg/L (1.2 times the limit)
Oct 1, 2007 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.55 mg/L, federal limit 4 mg/L (1.1 times the limit)
Jul 1, 2007 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.55 mg/L, federal limit 4 mg/L (1.1 times the limit)
Jul 1, 2007 Archived
Fluoride
Contaminant limit exceeded
Measured 4.6 mg/L, federal limit 4 mg/L (1.2 times the limit)
Apr 1, 2007 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.3 mg/L, federal limit 4 mg/L (1.1 times the limit)
Jan 1, 2007 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Oct 1, 2006 Resolved

Enforcement actions

Colorado regulators took 1 formal enforcement action against Westcreek Lakes WD in 2010. The most recent was a compliance order (no penalty) in May 2010.

Date By Action Violations covered
May 18, 2010 Colorado Compliance order (no penalty) 15 violations (15 health-based): Fluoride

What the violations mean

Surface Water Treatment Rule

6 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.

Fluoride

2 incidents

Fluoride exceeded the federal limit

Excessive fluoride can cause dental and skeletal fluorosis

Where the water comes from

Westcreek Lakes WD draws water from 2 wells.

Annual water quality report

Westcreek Lakes WD 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 Westcreek Lakes WD 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.