Public water system record

Sierra Vista RV Park

Serves an area of Pinal County, AZ that includes Casa Grande · 200 people served

Federal records show 18 health-based violations and 10 monitoring/reporting issues for Sierra Vista RV Park in the last ten years. The most serious issue in this window was a resolved Arsenic violation.

  • AZ0411383
  • CASA GRANDE
  • AZ
  • 200 served

System profile

Source water Groundwater
ZIP 85193
EPA system ID AZ0411383

Verify this system on EPA ECHO →

Health-based violations, last 10 years
18
Resolved
18
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
10

Key facts

  • Sierra Vista RV Park draws water from 1 well.
  • Highest measured level in the last 10 years: Arsenic, 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit), 2022.
  • Most recent formal enforcement: compliance order (no penalty) by Arizona, June 2021.
  • Record on file since 1984, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 96 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 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
330 Apr 1, 2024 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
330 Jan 1, 2024 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
330 Oct 1, 2023 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
330 Jul 1, 2023 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
330 Apr 1, 2023 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
330 Jan 1, 2023 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
330 Oct 1, 2022 Resolved No
Arsenic
Contaminant limit exceeded
330 Jul 1, 2022 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
330 Apr 1, 2022 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
330 Jan 1, 2022 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
330 Oct 1, 2021 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
330 Jul 1, 2021 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
330 Apr 1, 2021 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
330 Jan 1, 2021 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, 2020 Resolved No
Arsenic
Contaminant limit exceeded
Measured 16 µg/L, federal limit 10 µg/L (1.6 times the limit)
330 Jan 1, 2020 Resolved No
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
330 Jan 1, 2017 Resolved Yes
Nitrate
Contaminant limit exceeded
Measured 10.5 mg/L, federal limit 10 mg/L (1.1 times the limit)
330 Jan 1, 2016 Resolved Yes

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Public Notice
OTHER
Mar 31, 2024 Resolved
E. coli
Monitoring and reporting
Nov 23, 2023 Resolved
Revised Total Coliform Rule
RPT
Oct 1, 2020 Resolved
Public Notice
OTHER
Jul 2, 2020 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2020 Resolved
Revised Total Coliform Rule
RPT
Jul 1, 2019 Resolved
Revised Total Coliform Rule
RPT
Jun 1, 2019 Resolved
Nitrate
Monitoring and reporting
Apr 1, 2019 Resolved
Nitrate
Monitoring and reporting
Jan 1, 2018 Resolved
Nitrate
Monitoring and reporting
Apr 1, 2017 Resolved

Full record since 1984

EPA's records for Sierra Vista RV Park go back to 1984. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 9 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 2
1990s 0 3
2000s 0 4
2010 to October 18, 2016 1 0
October 19, 2016 to 2019 1 5
2020s 16 5

Most recent health-based violation before October 19, 2016: Nitrate (acute), began January 2016, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Nitrate (acute)
Contaminant limit exceeded
Measured 10.5 mg/L, federal limit 10 mg/L (1.1 times the limit)
Jan 1, 2016 Resolved

Enforcement actions

Arizona regulators took 1 formal enforcement action against Sierra Vista RV Park in 2021. The most recent was a compliance order (no penalty) in June 2021.

Date By Action Violations covered
Jun 28, 2021 Arizona Compliance order (no penalty) 18 violations (16 health-based): Arsenic, E. coli, Public Notice

What the violations mean

Arsenic

16 incidents

Arsenic exceeded the federal limit

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

Nitrate

2 incidents

Nitrate exceeded the federal limit

High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome

Where the water comes from

Sierra Vista RV Park draws water from 1 well.

Annual water quality report

Sierra Vista RV Park 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 Sierra Vista RV Park 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.