PlainEnviro

SCUA Upper Seven Mile

PWSID: 090400114 · San Carlos, AZ · Serves 8,478 people

Health Violations

SCUA Upper Seven Mile has 62 health-based violations out of 62 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served
8,478
Total Violations
62
Health Violations
62
Source Type
Groundwater

SCUA Upper Seven Mile (PWSID 090400114) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 8,478 people in San Carlos, AZ, and is subject to primacy enforcement by the Arizona drinking-water program.

The system's federal compliance record contains 62 total violations, with 62 classified as health-based (MCL exceedances or treatment-technique failures). 4 distinct contaminants have been cited, including E. coli, Barium, Fluoride. Recorded violations span 2013–2023.

A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Arizona state drinking-water program's public portal.

System Details

EPA ID (PWSID)
090400114
System Type
CWS
Water Source
Groundwater
Location
San Carlos, AZ
Population Served
8,478
Health Violations
Yes (62)

What contaminants are in this water system?

Contaminant Violations Health-Based
E. coli 26 26
Barium 26 26
Fluoride 8 8
Total Coliform (RTCR) 2 2

Violation History (62)

Contaminant Health Date
E. coli Yes Jul 1, 2023
E. coli Yes Jul 1, 2023
E. coli Yes Jul 1, 2023
E. coli Yes Jun 1, 2023
E. coli Yes Jun 1, 2023
E. coli Yes Jun 1, 2023
E. coli Yes Jun 1, 2023
E. coli Yes May 13, 2023
E. coli Yes May 13, 2023
E. coli Yes May 13, 2023
E. coli Yes May 1, 2023
E. coli Yes May 1, 2023
E. coli Yes May 1, 2023
E. coli Yes May 1, 2023
Fluoride Yes Mar 4, 2023
Fluoride Yes Mar 4, 2023
Fluoride Yes Mar 4, 2023
Fluoride Yes Mar 4, 2023
Fluoride Yes Mar 4, 2023
Fluoride Yes Mar 4, 2023
Fluoride Yes Mar 4, 2023
Fluoride Yes Mar 4, 2023
E. coli Yes Jul 1, 2021
E. coli Yes Jul 1, 2021
E. coli Yes Sep 30, 2018
E. coli Yes Sep 30, 2018
E. coli Yes Sep 1, 2018
E. coli Yes Sep 1, 2018
E. coli Yes Aug 30, 2018
E. coli Yes Aug 30, 2018
E. coli Yes Jul 1, 2018
E. coli Yes Jul 1, 2018
E. coli Yes Aug 1, 2017
E. coli Yes Aug 1, 2017
Barium Yes Apr 1, 2016
Barium Yes Apr 1, 2016
Total Coliform (RTCR) Yes Mar 1, 2016
Total Coliform (RTCR) Yes Mar 1, 2016
Barium Yes Jan 1, 2016
Barium Yes Jan 1, 2016
Barium Yes Jul 1, 2015
Barium Yes Jul 1, 2015
Barium Yes Apr 1, 2015
Barium Yes Apr 1, 2015
Barium Yes Jan 1, 2015
Barium Yes Jan 1, 2015
Barium Yes Oct 1, 2014
Barium Yes Oct 1, 2014
Barium Yes Jul 1, 2014
Barium Yes Jul 1, 2014
Barium Yes Apr 1, 2014
Barium Yes Apr 1, 2014
Barium Yes Jan 1, 2014
Barium Yes Jan 1, 2014
Barium Yes Oct 1, 2013
Barium Yes Oct 1, 2013
Barium Yes Jul 1, 2013
Barium Yes Jul 1, 2013
Barium Yes Apr 1, 2013
Barium Yes Apr 1, 2013
Barium Yes Jan 1, 2013
Barium Yes Jan 1, 2013

Frequently Asked Questions

Is SCUA Upper Seven Mile water safe to drink?
SCUA Upper Seven Mile has 62 health-based violations out of 62 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed. The system uses groundwater water as its source.
How many people does SCUA Upper Seven Mile serve?
SCUA Upper Seven Mile serves 8,478 people in San Carlos, AZ. It is classified as a CWS water system.
What violations does SCUA Upper Seven Mile have?
SCUA Upper Seven Mile has 62 total violations on record spanning 2013–2023. 62 are health-based violations involving contaminants exceeding EPA limits.
What contaminants have been found in SCUA Upper Seven Mile water?
Violations have been recorded for 4 contaminants. The most frequent: E. coli, Barium, Fluoride.

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Explore More

Arizona Water Systems → All States → Contaminants →

About This Data

Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

Read our methodology - how this data is sourced, computed, and verified.

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