Public water system · NH0597020
ActiveDeerfield Fairgrounds
At a glance
Deerfield Fairgrounds (PWSID NH0597020) is an active transient non-community water system in Rockingham County, New Hampshire. It reports serving 150 people through 240 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in May 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
240
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Deerfield Fairgrounds compare with other water systems in Rockingham County?
By EPA's size categories, Deerfield Fairgrounds is a very small system (500 people or fewer). Rockingham County has 554 active public water systems. Its population served is well below the county average of 492 people per system, and accounts for less than 0.1% of the 272,726 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 Deerfield Fairgrounds is roughly in line with 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 Deerfield Fairgrounds?
EPA lists Deerfield Fairgrounds 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. 477 of the 554 active systems in Rockingham County (86%) are also privately owned.
Does Deerfield Fairgrounds have drinking water violations?
EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in May 2024. The violations listed here began between January 2011 and May 2024. By type: 4 reporting, 3 monitoring and 2 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (8 of them). EPA lists 9 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 |
|---|---|---|---|---|
| 2024-05-08 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-05-09 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-04-01 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2018-04-01 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-04-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2011-01-26 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
All 9 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.
Deerfield Fairgrounds: frequently asked questions
Who runs Deerfield Fairgrounds?
Deerfield Fairgrounds (PWSID NH0597020) is a transient non-community water system privately owned. It is regulated by the NH state drinking water program.
How many people does Deerfield Fairgrounds serve?
Deerfield Fairgrounds reports serving 150 people through 240 service connections in Rockingham County, New Hampshire.
Where does Deerfield Fairgrounds 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 Deerfield Fairgrounds have any drinking water violations?
EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in May 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 Deerfield Fairgrounds' 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 9 violations for this system; 2 are health-based, and the most recent began in May 2024. For current results, consult EPA ECHO, or the NH state drinking water program.
Where can I find Deerfield Fairgrounds' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Deerfield Fairgrounds 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 Rockingham County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Aquarion Water/Nh | Rockingham | 34,000 | Community | Groundwater |
| Portsmouth Water Works | Rockingham | 33,000 | Community | Surface water |
| Salem Water Dept | Rockingham | 21,000 | Community | Surface water |
| Derry Water Dept | Rockingham | 17,370 | Community | Purchased surface water |
| Seabrook Water Dept | Rockingham | 14,000 | Community | Groundwater |
| Exeter Water Dept | Rockingham | 12,236 | Community | Surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Deerfield Fairgrounds, PWSID NH0597020, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/deerfield-fairgrounds-nh0597020 (data as of October 1, 2026).