Public water system · NH1403010
ActiveKos Manufactured Housing Cmnty
At a glance
Kos Manufactured Housing Cmnty (PWSID NH1403010) is an active community water system in Merrimack County, New Hampshire. It reports serving 137 people through 55 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in November 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
137
Service connections
55
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Kos Manufactured Housing Cmnty compare with other water systems in Merrimack County?
By EPA's size categories, Kos Manufactured Housing Cmnty is a very small system (500 people or fewer). Merrimack County has 244 active public water systems. Its population served is well below the county average of 509 people per system, and accounts for 0.1% of the 124,152 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 Kos Manufactured Housing Cmnty 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 Kos Manufactured Housing Cmnty?
EPA lists Kos Manufactured Housing Cmnty 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. 194 of the 244 active systems in Merrimack County (80%) are also privately owned.
Does Kos Manufactured Housing Cmnty have drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in November 2023. The violations listed here began between January 2007 and November 2023. By type: 3 contaminant level above the legal limit, 2 reporting, 1 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Arsenic (4 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2023-11-08 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-01-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2015-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2007-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2007-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
All 7 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.
Kos Manufactured Housing Cmnty: frequently asked questions
Who runs Kos Manufactured Housing Cmnty?
Kos Manufactured Housing Cmnty (PWSID NH1403010) is a community water system privately owned. It is regulated by the NH state drinking water program.
How many people does Kos Manufactured Housing Cmnty serve?
Kos Manufactured Housing Cmnty reports serving 137 people through 55 service connections in Merrimack County, New Hampshire.
Where does Kos Manufactured Housing Cmnty 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 Kos Manufactured Housing Cmnty have any drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in November 2023. 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 Kos Manufactured Housing Cmnty'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 7 violations for this system; 3 are health-based, and the most recent began in November 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.
Where can I find Kos Manufactured Housing Cmnty's water quality report?
As a community water system, Kos Manufactured Housing Cmnty 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 Merrimack County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Concord Water Dept | Merrimack | 44,215 | Community | Surface water |
| Franklin Water Works | Merrimack | 7,200 | Community | Groundwater |
| Pembroke Water Works | Merrimack | 5,200 | Community | Groundwater |
| Central Hooksett Water Pct | Merrimack | 4,650 | Community | Purchased surface water |
| Penacook Boscawen Water Pct | Merrimack | 3,800 | Community | Groundwater |
| New London Springfield Water | Merrimack | 3,250 | 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, “Kos Manufactured Housing Cmnty, PWSID NH1403010, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/kos-manufactured-housing-cmnty-nh1403010 (data as of October 1, 2026).