PlainEnviro

WHY DWID

PWSID: AZ0410118 · Ajo, AZ · Serves 400 people

Health Violations

WHY DWID has 11 health-based violations out of 11 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served
400
Total Violations
11
Health Violations
11
Source Type
Groundwater

WHY DWID (PWSID AZ0410118) 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 400 people in Ajo, AZ, and is subject to primacy enforcement by the Arizona drinking-water program.

The system's federal compliance record contains 11 total violations, with 11 classified as health-based (MCL exceedances or treatment-technique failures). 1 distinct contaminant has been cited, including Barium. Recorded violations span 2016–2018.

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)
AZ0410118
System Type
CWS
Water Source
Groundwater
Location
Ajo, AZ
Population Served
400
Health Violations
Yes (11)

What contaminants are in this water system?

Contaminant Violations Health-Based
Barium 11 11

Violation History (11)

Contaminant Health Date
Barium Yes Oct 1, 2018
Barium Yes Jul 1, 2018
Barium Yes Apr 1, 2018
Barium Yes Jan 1, 2018
Barium Yes Oct 1, 2017
Barium Yes Jul 1, 2017
Barium Yes Apr 1, 2017
Barium Yes Jan 1, 2017
Barium Yes Oct 1, 2016
Barium Yes Jul 1, 2016
Barium Yes Jan 1, 2016

Frequently Asked Questions

Is WHY DWID water safe to drink?
WHY DWID has 11 health-based violations out of 11 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 WHY DWID serve?
WHY DWID serves 400 people in Ajo, AZ. It is classified as a CWS water system.
What violations does WHY DWID have?
WHY DWID has 11 total violations on record spanning 2016–2018. 11 are health-based violations involving contaminants exceeding EPA limits.
What contaminants have been found in WHY DWID water?
Violations have been recorded for 1 contaminant. The most frequent: Barium.

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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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