Public water system record
Oak Creek Water District
Serves Sedona, Yavapai County, AZ · 1,507 people served
Federal records show 31 health-based violations and 24 monitoring/reporting issues for Oak Creek Water District in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 31
- Resolved
- 31
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 24
Key facts
- Oak Creek Water District draws water from 3 wells.
- Highest measured level in the last 10 years: Arsenic, 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit), 2019.
- Most recent formal enforcement: compliance order (no penalty) by Arizona, February 2020.
- Record on file since 1992, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 594 unknown out of 789 service lines.
Check whether Oak Creek Water District serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Mar 6, 2024 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2023 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2023 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2022 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2021 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Apr 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Oct 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jul 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Apr 1, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Jun 28, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Dec 5, 2023 | Resolved |
|
E. coli
Monitoring and reporting
|
Jun 17, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Sep 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Apr 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
Jul 1, 2016 | Resolved |
Full record since 1992
EPA's records for Oak Creek Water District go back to 1992. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 195 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 137 |
| 2000s | 2 | 30 |
| 2010 to October 18, 2016 | 0 | 28 |
| October 19, 2016 to 2019 | 7 | 17 |
| 2020s | 24 | 6 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2007, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2007 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1998 | Resolved |
Enforcement actions
Arizona regulators took 1 formal enforcement action against Oak Creek Water District in 2020. The most recent was a compliance order (no penalty) in February 2020.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 24, 2020 | Arizona | Compliance order (no penalty) | 32 violations (32 health-based): Arsenic |
What the violations mean
Arsenic
30 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Oak Creek Water District draws water from 3 wells.
Annual water quality report
Oak Creek Water District 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 Arizona.
Certified drinking water labs by state EPA guidance for private wells