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Public water system · NH1172030

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Silver Lake Estates

At a glance

Silver Lake Estates (PWSID NH1172030) is an active community water system in Hillsborough County, New Hampshire. It reports serving 100 people through 53 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; all are health-based, and the most recent began in October 2022.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

100

Service connections

53

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDNH1172030
System typeCommunity water system
Activity statusActive
Population served100
Service connections53
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyNH state drinking water program
City servedHollis
StateNew Hampshire
ZIP—
CountyHillsborough County

How does Silver Lake Estates compare with other water systems in Hillsborough County?

By EPA's size categories, Silver Lake Estates is a very small system (500 people or fewer). Hillsborough County has 279 active public water systems. Its population served is well below the county average of 1,206 people per system, and accounts for less than 0.1% of the 336,507 people reported by systems filed under the county. Across New Hampshire, the 2,450 active systems average 508 people each. Nationally, the average active community water system reports serving 6,703 people, so Silver Lake Estates is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New Hampshire has 706 active community water systems, 29% of the state's 2,450 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,374 New Hampshire systems (97%) list groundwater as their primary source.

Who owns and regulates Silver Lake Estates?

EPA lists Silver Lake Estates as privately owned. The NH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 238 of the 279 active systems in Hillsborough County (85%) are also privately owned.

Does Silver Lake Estates have drinking water violations?

EPA's records list 2 violations for this system; all are health-based, and the most recent began in October 2022. The violations listed here began between July 2022 and October 2022. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Combined Uranium (2 of them). EPA lists 2 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

BeganViolationContaminant or ruleHealth-basedStatus
2022-10-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved
2022-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved

All 2 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Silver Lake Estates: frequently asked questions

Who runs Silver Lake Estates?

Silver Lake Estates (PWSID NH1172030) is a community water system privately owned. It is regulated by the NH state drinking water program.

How many people does Silver Lake Estates serve?

Silver Lake Estates reports serving 100 people through 53 service connections in Hillsborough County, New Hampshire.

Where does Silver Lake Estates get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Silver Lake Estates have any drinking water violations?

EPA's records list 2 violations for this system; all are health-based, and the most recent began in October 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Silver Lake Estates' water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 2 violations for this system; all are health-based, and the most recent began in October 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.

Where can I find Silver Lake Estates' water quality report?

As a community water system, Silver Lake Estates must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Hillsborough County

Water systemCountyPopulation servedTypeSource
Manchester Water WorksHillsborough123,500CommunitySurface water
Pennichuck Water WorksHillsborough88,853CommunitySurface water
Merrimack Village DistHillsborough25,500CommunityGroundwater
Hudson Water DeptHillsborough16,700CommunityGroundwater
Milford Water Utilities DeptHillsborough9,500CommunityPurchased surface water
LitchfieldHillsborough6,920CommunityPurchased surface water

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Silver Lake Estates, PWSID NH1172030, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/silver-lake-estates-nh1172030 (data as of October 1, 2026).