Public water system record

City of Prescott

Serves Prescott, Yavapai County, AZ · 42,217 people served

Federal records show 1 health-based violation and 84 monitoring/reporting issues for City of Prescott in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.

  • AZ0413045
  • PRESCOTT
  • AZ
  • 42,217 served

System profile

Source water Groundwater
ZIP 86301
EPA system ID AZ0413045

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
84

Key facts

  • City of Prescott draws water from 8 wells.
  • Record on file since 1979, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 24,150 unknown out of 48,687 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
Groundwater Rule
Treatment technique failure
140 Jan 3, 2025 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 REVISIONS
RPT
Jul 2, 2025 Active
Arsenic
Monitoring and reporting
Apr 1, 2025 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2025 Resolved
Public Notice
OTHER
Mar 25, 2025 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2024 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2024 Resolved
Styrene
Monitoring and reporting
Jul 1, 2022 Resolved
Ethylbenzene
Monitoring and reporting
Jul 1, 2022 Resolved
Toluene
Monitoring and reporting
Jul 1, 2022 Resolved
Benzene
Monitoring and reporting
Jul 1, 2022 Resolved
CHLOROBENZENE
Monitoring and reporting
Jul 1, 2022 Resolved
Tetrachloroethylene
Monitoring and reporting
Jul 1, 2022 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jul 1, 2022 Resolved
Trichloroethylene
Monitoring and reporting
Jul 1, 2022 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jul 1, 2022 Resolved
Carbon tetrachloride
Monitoring and reporting
Jul 1, 2022 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jul 1, 2022 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jul 1, 2022 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2022 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jul 1, 2022 Resolved
Vinyl chloride
Monitoring and reporting
Jul 1, 2022 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jul 1, 2022 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jul 1, 2022 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jul 1, 2022 Resolved
Xylenes, Total
Monitoring and reporting
Jul 1, 2022 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2022 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jul 1, 2022 Resolved
Radium-228
Monitoring and reporting
Jul 1, 2022 Resolved
Radium-226
Monitoring and reporting
Jul 1, 2022 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jul 1, 2022 Resolved
Combined Uranium
Monitoring and reporting
Jul 1, 2022 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jul 1, 2022 Resolved
Radium-228
Monitoring and reporting
Jan 1, 2022 Resolved
Radium-226
Monitoring and reporting
Jan 1, 2022 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2022 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2022 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2022 Resolved
Radium-228
Monitoring and reporting
Jan 1, 2020 Resolved
Radium-226
Monitoring and reporting
Jan 1, 2020 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2020 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2020 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2018 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Aug 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Aug 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2018 Resolved
Styrene
Monitoring and reporting
Jan 1, 2018 Resolved
Ethylbenzene
Monitoring and reporting
Jan 1, 2018 Resolved
Toluene
Monitoring and reporting
Jan 1, 2018 Resolved
Benzene
Monitoring and reporting
Jan 1, 2018 Resolved
CHLOROBENZENE
Monitoring and reporting
Jan 1, 2018 Resolved
Tetrachloroethylene
Monitoring and reporting
Jan 1, 2018 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jan 1, 2018 Resolved
Trichloroethylene
Monitoring and reporting
Jan 1, 2018 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jan 1, 2018 Resolved
Carbon tetrachloride
Monitoring and reporting
Jan 1, 2018 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jan 1, 2018 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jan 1, 2018 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2018 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jan 1, 2018 Resolved
Vinyl chloride
Monitoring and reporting
Jan 1, 2018 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jan 1, 2018 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jan 1, 2018 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jan 1, 2018 Resolved
Xylenes, Total
Monitoring and reporting
Jan 1, 2018 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2018 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jan 1, 2018 Resolved
Radium-228
Monitoring and reporting
Jan 1, 2018 Resolved
Radium-226
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
Consumer Confidence Rule
OTHER
Jul 1, 2017 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2017 Resolved
Radium-228
Monitoring and reporting
Jan 1, 2017 Resolved
Radium-226
Monitoring and reporting
Jan 1, 2017 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2017 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2017 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2016 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2016 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2016 Resolved
Nitrate
Monitoring and reporting
Jan 1, 2016 Resolved
Dinoseb
Monitoring and reporting
Jan 1, 2015 Resolved

Full record since 1979

EPA's records for City of Prescott go back to 1979. Before October 19, 2016 they list no health-based violations and 341 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 6
1980s 0 16
2000s 0 225
2010 to October 18, 2016 0 94
October 19, 2016 to 2019 0 38
2020s 1 42

What the violations mean

Groundwater Rule

1 incident

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

The utility had to notify customers about this violation.

Where the water comes from

City of Prescott draws water from 8 wells. 3 other community water systems buy water from City of Prescott.

Community systems that buy water from it

Annual water quality report

City of Prescott 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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.