PlainEnviro

HAT ROCK WATER COMPANY

PWSID: OR4101309 · Hermiston, OR · Serves 108 people

Health Violations

HAT ROCK WATER COMPANY has 9 health-based violations out of 9 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served
108
Total Violations
9
Health Violations
9
Source Type
Groundwater

HAT ROCK WATER COMPANY (PWSID OR4101309) 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 108 people in Hermiston, OR, and is subject to primacy enforcement by the Oregon drinking-water program.

The system's federal compliance record contains 9 total violations, with 9 classified as health-based (MCL exceedances or treatment-technique failures). 2 distinct contaminants have been cited, including Nitrate, E. coli. Recorded violations span 2014–2019.

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 Oregon state drinking-water program's public portal.

System Details

EPA ID (PWSID)
OR4101309
System Type
CWS
Water Source
Groundwater
Location
Hermiston, OR
Population Served
108
Health Violations
Yes (9)

What contaminants are in this water system?

Contaminant Violations Health-Based
Nitrate 7 7
E. coli 2 2

Violation History (9)

Contaminant Health Date
E. coli Yes Jul 22, 2019
E. coli Yes Jul 22, 2019
Nitrate Yes Jan 1, 2017
Nitrate Yes Jul 1, 2016
Nitrate Yes Jan 1, 2016
Nitrate Yes Jul 1, 2015
Nitrate Yes Apr 1, 2015
Nitrate Yes Apr 1, 2014
Nitrate Yes Jan 1, 2014

Frequently Asked Questions

Is HAT ROCK WATER COMPANY water safe to drink?
HAT ROCK WATER COMPANY has 9 health-based violations out of 9 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 HAT ROCK WATER COMPANY serve?
HAT ROCK WATER COMPANY serves 108 people in Hermiston, OR. It is classified as a CWS water system.
What violations does HAT ROCK WATER COMPANY have?
HAT ROCK WATER COMPANY has 9 total violations on record spanning 2014–2019. 9 are health-based violations involving contaminants exceeding EPA limits.
What contaminants have been found in HAT ROCK WATER COMPANY water?
Violations have been recorded for 2 contaminants. The most frequent: Nitrate, E. coli.

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Explore More

Oregon 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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