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Public water system record

Oak Creek Valley

Serves Cornville, Yavapai County, AZ · 450 people served

Federal records show 1 health-based violation and 3 monitoring/reporting issues for Oak Creek Valley in the last ten years. The most serious issue in this window was a resolved Arsenic violation.

  • AZ0413121
  • CLARKDALE
  • AZ
  • 450 served

System profile

Source water Groundwater
ZIP 86324
EPA system ID AZ0413121

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
3

Key facts

  • Oak Creek Valley draws water from 1 well.
  • Highest measured level in the last 10 years: Arsenic, 0.0135 mg/L, federal limit 0.01 mg/L (1.4 times the limit), 2018.
  • Record on file since 1998, with 12 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 154 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
Arsenic
Contaminant limit exceeded
Measured 0.0135 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
 330 Jul 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
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2019 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
 Feb 1, 2018 Resolved

Full record since 1998

EPA's records for Oak Creek Valley go back to 1998. Before October 19, 2016 they list 12 health-based violations (12 resolved) and 92 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 41
2000s 3 41
2010 to October 18, 2016 8 10
October 19, 2016 to 2019 1 3

Most recent health-based violation before October 19, 2016: Arsenic, began January 2012, Resolved.

Show all 12 health-based violations before October 19, 2016
Contaminant Start date Status
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
 Jan 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.021 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
 Oct 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.03 mg/L, federal limit 0.01 mg/L (3 times the limit)
 Jul 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.04 mg/L, federal limit 0.01 mg/L (4 times the limit)
 Apr 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.039 mg/L, federal limit 0.01 mg/L (3.9 times the limit)
 Jan 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.039 mg/L, federal limit 0.01 mg/L (3.9 times the limit)
 Oct 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.038 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Jul 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.019 mg/L, federal limit 0.01 mg/L (1.9 times the limit)
 Apr 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.045 mg/L, federal limit 0.01 mg/L (4.5 times the limit)
 Jul 1, 2009 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.041 mg/L, federal limit 0.01 mg/L (4.1 times the limit)
 Jul 1, 2009 Resolved
Arsenic
Contaminant limit exceeded
 Jan 1, 2000 Resolved
Total Coliform
Contaminant limit exceeded
 Aug 1, 1999 Resolved

What the violations mean

Arsenic

1 incident

Arsenic exceeded the federal limit

Long-term arsenic exposure is linked to cancer and cardiovascular effects

Where the water comes from

Oak Creek Valley draws water from 1 well.

Annual water quality report

Oak Creek Valley 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 Oak Creek Valley 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 Arizona.

Certified drinking water labs by state EPA guidance for private wells