Public water system · MD0210019
ActiveSandy Hook
At a glance
Sandy Hook (PWSID MD0210019) is an active community water system in Washington County, Maryland. It reports serving 220 people through 65 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
220
Service connections
65
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Sandy Hook compare with other water systems in Washington County?
By EPA's size categories, Sandy Hook is a very small system (500 people or fewer). Washington County has 78 active public water systems. Its population served is well below the county average of 1,584 people per system, and accounts for 0.2% of the 123,580 people reported by systems filed under the county. Across Maryland, the 2,992 active systems average 1,947 people each. Nationally, the average active community water system reports serving 6,703 people, so Sandy Hook 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. Maryland has 422 active community water systems, 14% of the state's 2,992 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,870 Maryland systems (96%) list groundwater as their primary source.
Who owns and regulates Sandy Hook?
EPA lists Sandy Hook as owned by a local government. The MD state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 15 of the 78 active systems in Washington County (19%) are also owned by a local government.
Does Sandy Hook have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2019. The violations listed here began between July 2009 and January 2019. By type: 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 3 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2014-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2011-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
All 4 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.
Sandy Hook: frequently asked questions
Who runs Sandy Hook?
Sandy Hook (PWSID MD0210019) is a community water system owned by a local government. It is regulated by the MD state drinking water program.
How many people does Sandy Hook serve?
Sandy Hook reports serving 220 people through 65 service connections in Washington County, Maryland.
Where does Sandy Hook 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 Sandy Hook have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2019. 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 Sandy Hook's 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 4 violations for this system; none is health-based, and the most recent began in January 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the MD state drinking water program.
Where can I find Sandy Hook's water quality report?
As a community water system, Sandy Hook 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 Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Hagerstown | Washington | 92,200 | Community | Surface water |
| Boonsboro - Keedysville | Washington | 4,250 | Community | Surface water |
| Town of Smithsburg Distribution System | Washington | 2,500 | Community | Purchased surface water |
| Town of Williamsport Distribution System | Washington | 2,400 | Community | Purchased surface water |
| Town of Hancock | Washington | 1,921 | Community | Groundwater |
| Sideling Hill State Park Exhibit Rt 68 W | Washington | 1,603 | Transient non-community | Groundwater |
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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, “Sandy Hook, PWSID MD0210019, Maryland”, https://aquacensus.com/water-systems/maryland/sandy-hook-md0210019 (data as of October 1, 2026).