PlainEnviro

EMERALD LAKE

PWSID: NH1141020 · Hillsboro, NH · Serves 1,300 people

Health Violations

EMERALD LAKE has 6 health-based violations out of 6 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served
1,300
Total Violations
6
Health Violations
6
Source Type
Groundwater

EMERALD LAKE (PWSID NH1141020) 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 1,300 people in Hillsboro, NH, and is subject to primacy enforcement by the New Hampshire drinking-water program.

The system's federal compliance record contains 6 total violations, with 6 classified as health-based (MCL exceedances or treatment-technique failures). 2 distinct contaminants have been cited, including Barium, Fluoride. Recorded violations span 2013–2020.

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 New Hampshire state drinking-water program's public portal.

System Details

EPA ID (PWSID)
NH1141020
System Type
CWS
Water Source
Groundwater
Location
Hillsboro, NH
Population Served
1,300
Health Violations
Yes (6)

What contaminants are in this water system?

Contaminant Violations Health-Based
Barium 4 4
Fluoride 2 2

Violation History (6)

Contaminant Health Date
Fluoride Yes Oct 2, 2020
Barium Yes Jan 1, 2020
Barium Yes Oct 1, 2019
Barium Yes Jul 1, 2019
Barium Yes Apr 1, 2019
Fluoride Yes Apr 24, 2013

Frequently Asked Questions

Is EMERALD LAKE water safe to drink?
EMERALD LAKE has 6 health-based violations out of 6 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 EMERALD LAKE serve?
EMERALD LAKE serves 1,300 people in Hillsboro, NH. It is classified as a CWS water system.
What violations does EMERALD LAKE have?
EMERALD LAKE has 6 total violations on record spanning 2013–2020. 6 are health-based violations involving contaminants exceeding EPA limits.
What contaminants have been found in EMERALD LAKE water?
Violations have been recorded for 2 contaminants. The most frequent: Barium, Fluoride.

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Explore More

New Hampshire 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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