Public water system record

Copper Mountain Ranch CFD

Serves an area of Pinal County, AZ that includes Maricopa · 1,071 people served

Federal records show 5 health-based violations and 16 monitoring/reporting issues for Copper Mountain Ranch CFD in the last ten years. The most serious issue in this window was a resolved Nitrate violation.

  • AZ0411328
  • CASA GRANDE
  • AZ
  • 1,071 served

System profile

Source water Groundwater
ZIP 85122
EPA system ID AZ0411328

Verify this system on EPA ECHO →

Health-based violations, last 10 years
5
Resolved
5
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
16

Key facts

  • Copper Mountain Ranch CFD draws water from 1 well.
  • Highest measured level in the last 10 years: Nitrate, 14 mg/L, federal limit 10 mg/L (1.4 times the limit), 2017.
  • Most recent formal enforcement: compliance order (no penalty) by Arizona, February 2017.
  • Record on file since 1980, with 19 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 131 unknown out of 316 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
Nitrate
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
330 Jul 1, 2017 Resolved Yes
Nitrate
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
330 Apr 1, 2017 Resolved Yes
Lead and Copper Rule
Treatment technique failure
350 Jan 9, 2017 Resolved No
Nitrate
Contaminant limit exceeded
Measured 14 mg/L, federal limit 10 mg/L (1.4 times the limit)
330 Jan 1, 2017 Resolved Yes
Nitrate
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
330 Oct 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
Chlorine
Monitoring and reporting
Mar 1, 2025 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2023 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2020 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2018 Resolved
Revised Total Coliform Rule
RPT
May 1, 2018 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2018 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
Aug 3, 2017 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2017 Resolved
Lead and Copper Rule
Monitoring and reporting
Feb 3, 2017 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2017 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2017 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2016 Resolved
E. coli
Monitoring and reporting
Nov 22, 2015 Resolved

Full record since 1980

EPA's records for Copper Mountain Ranch CFD go back to 1980. Before October 19, 2016 they list 19 health-based violations (16 resolved, 3 archived by EPA without a recorded fix) and 164 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 3 3
1990s 0 58
2000s 1 71
2010 to October 18, 2016 15 32
October 19, 2016 to 2019 4 9
2020s 0 5

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

Show all 19 health-based violations before October 19, 2016
Contaminant Start date Status
Nitrate (acute)
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
Oct 1, 2016 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 14 mg/L, federal limit 10 mg/L (1.4 times the limit)
Jul 1, 2016 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 12.5 mg/L, federal limit 10 mg/L (1.3 times the limit)
Apr 1, 2016 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 12.4 mg/L, federal limit 10 mg/L (1.2 times the limit)
Jan 1, 2016 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 12.2 mg/L, federal limit 10 mg/L (1.2 times the limit)
Oct 1, 2015 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11.9 mg/L, federal limit 10 mg/L (1.2 times the limit)
Jul 1, 2015 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
Apr 1, 2015 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
Jan 1, 2015 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
Oct 1, 2014 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
Jul 1, 2014 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
Apr 1, 2014 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
Jan 1, 2014 Resolved
Total Coliform
Contaminant limit exceeded
Dec 1, 2013 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
Oct 1, 2013 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 10.2 mg/L, federal limit 10 mg/L (at or just above the limit)
Apr 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2005 Resolved
Fluoride
Contaminant limit exceeded
Oct 25, 1983 Archived
Fluoride
Contaminant limit exceeded
Oct 20, 1980 Archived
Fluoride
Contaminant limit exceeded
Jan 16, 1980 Archived

Enforcement actions

Arizona regulators took 4 formal enforcement actions against Copper Mountain Ranch CFD between 2015 and 2017, filed as 5 records in EPA's data. The most recent was a compliance order (no penalty) in February 2017.

Date By Action Violations covered
Feb 9, 2017 Arizona Compliance order (no penalty) 33 violations (33 health-based): Total Coliform, Nitrate
Jan 30, 2017 Arizona Compliance order (no penalty) 15 violations (15 health-based): Nitrate
Jun 10, 2016 Arizona Compliance order (no penalty) 4 violations (4 health-based): Nitrate
May 27, 2015 Arizona Compliance order (no penalty) 10 violations (10 health-based): Nitrate

What the violations mean

Nitrate

4 incidents

Nitrate exceeded the federal limit

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

Lead and Copper Rule

1 incident

The system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Copper Mountain Ranch CFD draws water from 1 well.

Annual water quality report

Copper Mountain Ranch CFD 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.