Public water system · NH1996060
ActivePhase 10
At a glance
Phase 10 (PWSID NH1996060) is an active transient non-community water system in Cheshire County, New Hampshire. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Phase 10 compare with other water systems in Cheshire County?
By EPA's size categories, Phase 10 is a very small system (500 people or fewer). Cheshire County has 169 active public water systems. Its population served is well below the county average of 409 people per system, and accounts for less than 0.1% of the 69,037 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 Phase 10 is well below 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 Phase 10?
EPA lists Phase 10 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. 129 of the 169 active systems in Cheshire County (76%) are also privately owned.
Does Phase 10 have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2024. The violations listed here began between July 2022 and July 2024. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-07-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
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.
Phase 10: frequently asked questions
Who runs Phase 10?
Phase 10 (PWSID NH1996060) is a transient non-community water system privately owned. It is regulated by the NH state drinking water program.
How many people does Phase 10 serve?
Phase 10 reports serving 25 people through 1 service connection in Cheshire County, New Hampshire.
Where does Phase 10 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 Phase 10 have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2024. 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 Phase 10'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 2 violations for this system; none is health-based, and the most recent began in July 2024. For current results, consult EPA ECHO, or the NH state drinking water program.
Where can I find Phase 10's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Phase 10 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 Cheshire County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Keene Water Dept | Cheshire | 30,000 | Community | Surface water |
| Jaffrey Water Works | Cheshire | 3,800 | Community | Groundwater |
| Winchester Water Dept | Cheshire | 2,800 | Community | Groundwater |
| North Hinsdale Water Dept | Cheshire | 1,800 | Community | Groundwater |
| N Swanzey Water and Fire Prct | Cheshire | 1,700 | Community | Purchased surface water |
| Franklin Pierce University | Cheshire | 1,638 | Non-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, “Phase 10, PWSID NH1996060, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/phase-10-nh1996060 (data as of October 1, 2026).