Public Water Partners

HILLSBORO, NH · Hillsborough County

EMERALD LAKE Water System

Consumer Confidence Report status

EMERALD LAKE must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for EMERALD LAKE.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace New Hampshire’s official records. Always confirm current status with New Hampshire before making decisions based on this information.

System facts

System ID (PWSID)
NH1141020
System type
Community Water System
Population served
1,300
Service connections
528
Ownership
local government
Water source
groundwater (wells)

EMERALD LAKE is one of 101 community water systems in New Hampshire in the 501 to 3,300 people size category, serving 1,300 people from groundwater.

As of August 1, 2026, its federal record holds 4 entries between 2005 and 2024, all of which EPA lists as closed.

Of the 4, 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Public Notice Rule and Revised PN Rule, and the Total Coliform Rules.

Violation history

  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    July 1, 2024 – October 1, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    January 23, 2020 – February 7, 2020

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2012 – September 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2005 – December 31, 2005

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is EMERALD LAKE required to publish a Consumer Confidence Report?

Yes. EMERALD LAKE is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is EMERALD LAKE’s next Consumer Confidence Report due?

EMERALD LAKE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does EMERALD LAKE have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for EMERALD LAKE.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

EMERALD LAKE VILLAGE DISTRICT

Phone not on record

HILLSBORO, NH 03244