Public water system record

Valley WC

On record as serving Otero County, CO · Serves 270 people

Federal records show 121 health-based violations and 51 monitoring/reporting issues for Valley WC in the last ten years. The most serious issue in this window was a Combined Radium (-226 and -228) violation that EPA lists as archived, not resolved.

  • CO0145750
  • MANZANOLA
  • CO
  • 270 served

System profile

Source water Groundwater
ZIP 81058
EPA system ID CO0145750

Verify this system on EPA ECHO →

Health-based violations, last 10 years
121
Resolved
1
Unresolved
0
Archived by EPA
120
Any acute record
No
Monitoring issues, last 10 years
51

Key facts

  • Valley WC draws water from 2 wells.
  • Highest measured level in the last 10 years: Combined Radium (-226 and -228), 20 pCi/L, federal limit 5 pCi/L (4 times the limit), 2021.
  • Most recent formal enforcement: compliance order (no penalty) by Colorado, May 2022.
  • Record on file since 1993, with 27 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 116 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
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
340 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14 pCi/L, federal limit 5 pCi/L (2.8 times the limit)
340 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14 pCi/L, federal limit 5 pCi/L (2.8 times the limit)
340 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.11 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
340 Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.15 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
340 Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.07 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
340 Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.43 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
340 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.86 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
340 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.15 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24.95 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
340 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.4 pCi/L, federal limit 5 pCi/L (2.5 times the limit)
340 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13.3 pCi/L, federal limit 5 pCi/L (2.7 times the limit)
340 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.75 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
340 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 30.75 pCi/L, federal limit 15 pCi/L (2.1 times the limit)
340 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.9 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
340 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13.75 pCi/L, federal limit 5 pCi/L (2.8 times the limit)
340 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.68 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
340 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 29.13 pCi/L, federal limit 15 pCi/L (1.9 times the limit)
340 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13.45 pCi/L, federal limit 5 pCi/L (2.7 times the limit)
340 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14.2 pCi/L, federal limit 5 pCi/L (2.8 times the limit)
340 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.6 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
340 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 27.5 pCi/L, federal limit 15 pCi/L (1.8 times the limit)
340 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14.63 pCi/L, federal limit 5 pCi/L (2.9 times the limit)
340 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14.4 pCi/L, federal limit 5 pCi/L (2.9 times the limit)
340 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.2 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
340 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.42 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
340 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.8 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14.9 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15.1 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.8 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14.9 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15.1 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
340 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Apr 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
340 Apr 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Apr 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
340 Jan 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
340 Jan 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
340 Jan 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 5 pCi/L (3.4 times the limit)
340 Jan 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
340 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
340 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 18.15 pCi/L, federal limit 5 pCi/L (3.6 times the limit)
340 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 17.25 pCi/L, federal limit 5 pCi/L (3.5 times the limit)
340 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.5 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
340 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
340 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 18.88 pCi/L, federal limit 5 pCi/L (3.8 times the limit)
340 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 5 pCi/L (3.6 times the limit)
340 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 25 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
340 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
340 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 20 pCi/L, federal limit 5 pCi/L (4 times the limit)
340 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 5 pCi/L (3.8 times the limit)
340 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 25 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
340 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
340 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 5 pCi/L (3.8 times the limit)
340 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 5 pCi/L (3.6 times the limit)
340 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 25.5 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
340 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.5 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
340 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 19.1 pCi/L, federal limit 5 pCi/L (3.8 times the limit)
340 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 17.15 pCi/L, federal limit 5 pCi/L (3.4 times the limit)
340 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 28.75 pCi/L, federal limit 15 pCi/L (1.9 times the limit)
340 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.25 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
340 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 18.38 pCi/L, federal limit 5 pCi/L (3.7 times the limit)
340 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.8 pCi/L, federal limit 5 pCi/L (3.4 times the limit)
340 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.45 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 17.65 pCi/L, federal limit 5 pCi/L (3.5 times the limit)
340 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 26 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
340 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 32 pCi/L, federal limit 15 pCi/L (2.1 times the limit)
340 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.43 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 17.48 pCi/L, federal limit 5 pCi/L (3.5 times the limit)
340 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 26 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
340 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 28.25 pCi/L, federal limit 15 pCi/L (1.9 times the limit)
340 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.4 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 17.3 pCi/L, federal limit 5 pCi/L (3.5 times the limit)
340 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24.5 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
340 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 26 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
340 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.38 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.93 pCi/L, federal limit 5 pCi/L (3.4 times the limit)
340 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
340 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.5 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
340 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.35 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Apr 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.55 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Apr 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
340 Apr 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.5 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
340 Apr 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.32 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Jan 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15.93 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
340 Jan 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.5 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
340 Jan 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
340 Jan 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15.23 pCi/L, federal limit 5 pCi/L (3 times the limit)
340 Oct 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.67 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
340 Oct 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.2 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
340 Oct 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.33 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
340 Oct 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 15.3 pCi/L, federal limit 5 pCi/L (3.1 times the limit)
340 Jul 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.5 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
340 Jul 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.3 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Jul 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
340 Jul 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.3 pCi/L, federal limit 5 pCi/L (3.3 times the limit)
340 Apr 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16.75 pCi/L, federal limit 5 pCi/L (3.4 times the limit)
340 Apr 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
340 Jan 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 5 pCi/L (3.6 times the limit)
340 Jan 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 5 pCi/L (3.6 times the limit)
340 Jan 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
340 Jan 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
340 Jan 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
340 Jan 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
210 May 1, 2016 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.5 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
340 Jan 1, 2016 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13.1 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
340 Jan 1, 2016 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jul 1, 2025 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jul 1, 2025 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jul 1, 2025 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jul 1, 2025 Resolved
Revised Total Coliform Rule
OTHER
May 7, 2025 Resolved
Public Notice
OTHER
Oct 1, 2024 Resolved
E. coli
Monitoring and reporting
Jul 12, 2024 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2024 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2024 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2024 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2024 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2024 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2024 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2024 Resolved
Public Notice
OTHER
Jul 1, 2023 Resolved
Public Notice
OTHER
Apr 1, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2023 Resolved
Public Notice
OTHER
Jan 1, 2023 Resolved
Public Notice
OTHER
Oct 1, 2022 Resolved
Public Notice
OTHER
Jul 1, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2019 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2018 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2018 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2018 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2018 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2018 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2018 Resolved
Public Notice
OTHER
Aug 15, 2016 Resolved
Styrene
Monitoring and reporting
Jan 1, 2014 Resolved
Ethylbenzene
Monitoring and reporting
Jan 1, 2014 Resolved
Toluene
Monitoring and reporting
Jan 1, 2014 Resolved
Benzene
Monitoring and reporting
Jan 1, 2014 Resolved
CHLOROBENZENE
Monitoring and reporting
Jan 1, 2014 Resolved
Tetrachloroethylene
Monitoring and reporting
Jan 1, 2014 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jan 1, 2014 Resolved
Trichloroethylene
Monitoring and reporting
Jan 1, 2014 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jan 1, 2014 Resolved
Carbon tetrachloride
Monitoring and reporting
Jan 1, 2014 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jan 1, 2014 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jan 1, 2014 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2014 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jan 1, 2014 Resolved
Vinyl chloride
Monitoring and reporting
Jan 1, 2014 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jan 1, 2014 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jan 1, 2014 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jan 1, 2014 Resolved
Xylenes, Total
Monitoring and reporting
Jan 1, 2014 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2014 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jan 1, 2014 Resolved

Full record since 1993

EPA's records for Valley WC go back to 1993. Before October 19, 2016 they list 27 health-based violations (1 resolved, 26 archived by EPA without a recorded fix) and 31 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 1
2000s 4 4
2010 to October 18, 2016 22 26
October 19, 2016 to 2019 32 7
2020s 86 22

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

Show all 27 health-based violations before October 19, 2016
Contaminant Start date Status
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
May 1, 2016 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.5 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
Jan 1, 2016 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13.1 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jan 1, 2016 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.9 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jan 1, 2015 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13.6 pCi/L, federal limit 5 pCi/L (2.7 times the limit)
Jan 1, 2015 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Jan 1, 2015 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jan 1, 2014 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
Jan 1, 2014 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
Jan 1, 2014 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14 pCi/L, federal limit 5 pCi/L (2.8 times the limit)
Jan 1, 2014 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
Jan 1, 2013 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jan 1, 2013 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
Jan 1, 2013 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
Jan 1, 2013 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
Jan 1, 2012 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jan 1, 2012 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
Jan 1, 2011 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
Jan 1, 2011 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14 pCi/L, federal limit 5 pCi/L (2.8 times the limit)
Jan 1, 2011 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jan 1, 2011 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
Jan 1, 2010 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 5 pCi/L (3.6 times the limit)
Jan 1, 2010 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 35 pCi/L, federal limit 5 pCi/L (7 times the limit)
Jan 1, 2009 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
Jan 1, 2009 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 5 pCi/L (3.2 times the limit)
Jan 1, 2008 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jan 1, 2007 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 5 pCi/L (3.4 times the limit)
Jan 1, 1998 Archived

Enforcement actions

Colorado regulators and EPA took 4 formal enforcement actions against Valley WC between 1995 and 2022. The most recent was a compliance order (no penalty) in May 2022.

Date By Action Violations covered
May 31, 2022 Colorado Compliance order (no penalty) 137 violations (136 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228), Public Notice
Feb 27, 2018 Colorado Compliance order (no penalty) 64 violations (64 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228)
Dec 30, 2003 Colorado Compliance order (no penalty) 26 violations (26 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U
Feb 23, 1995 EPA Compliance order (no penalty) 1 violation: Nitrate

What the violations mean

Combined Radium (-226 and -228)

68 incidents

Test results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).

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

Gross Alpha, Excl. Radon and U

52 incidents

Test results for Gross Alpha, Excl. Radon and U were above the federal limit (a maximum contaminant level 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

Where the water comes from

Valley WC draws water from 2 wells.

Annual water quality report

Valley WC 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 Valley WC 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.