Public water system · NH0887020
ActiveEllacoya State Park
At a glance
Ellacoya State Park (PWSID NH0887020) is an active transient non-community water system in Belknap County, New Hampshire. It reports serving 250 people through 38 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 6 violations for this system; 3 are health-based, and the most recent began in July 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
250
Service connections
38
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Ellacoya State Park compare with other water systems in Belknap County?
By EPA's size categories, Ellacoya State Park is a very small system (500 people or fewer). Belknap County has 255 active public water systems. Its population served is about 10% below the county average of 278 people per system, and accounts for 0.4% of the 70,916 people reported by systems filed under the county. Across New Hampshire, the 2,450 active systems average 508 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Ellacoya State Park is about 74% above that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. New Hampshire has 1,291 active transient non-community water systems, 53% 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 Ellacoya State Park?
EPA lists Ellacoya State Park as owned by a state government. 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. 3 of the 255 active systems in Belknap County (1.2%) are also owned by a state government.
Does Ellacoya State Park have drinking water violations?
EPA's records list 6 violations for this system; 3 are health-based, and the most recent began in July 2020. The violations listed here began between April 2005 and July 2020. By type: 3 contaminant level above the legal limit, 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is E. coli (2 of them). EPA lists 6 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2020-07-15 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-05-24 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2016-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2016-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2016-05-27 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2005-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 6 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.
Ellacoya State Park: frequently asked questions
Who runs Ellacoya State Park?
Ellacoya State Park (PWSID NH0887020) is a transient non-community water system owned by a state government. It is regulated by the NH state drinking water program.
How many people does Ellacoya State Park serve?
Ellacoya State Park reports serving 250 people through 38 service connections in Belknap County, New Hampshire.
Where does Ellacoya State Park 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 Ellacoya State Park have any drinking water violations?
EPA's records list 6 violations for this system; 3 are health-based, and the most recent began in July 2020. 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 Ellacoya State Park'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 6 violations for this system; 3 are health-based, and the most recent began in July 2020. For current results, consult EPA ECHO, or the NH state drinking water program.
Where can I find Ellacoya State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ellacoya State Park is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Belknap County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Laconia Water Works | Belknap | 17,125 | Community | Surface water |
| Meredith Water Dept | Belknap | 3,750 | Community | Surface water |
| Locke Lake | Belknap | 2,308 | Community | Surface water |
| Alton Water Works | Belknap | 1,800 | Community | Groundwater |
| Belmont Water Dept | Belknap | 1,612 | Community | Groundwater |
| Gunstock Acres Village Dist | Belknap | 1,440 | 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, “Ellacoya State Park, PWSID NH0887020, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/ellacoya-state-park-nh0887020 (data as of October 1, 2026).