Public water system · IA8222402
ActiveNahant Marsh
At a glance
Nahant Marsh (PWSID IA8222402) is an active transient non-community water system in Scott County, Iowa. It reports serving 210 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
210
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Nahant Marsh compare with other water systems in Scott County?
By EPA's size categories, Nahant Marsh is a very small system (500 people or fewer). Scott County has 78 active public water systems. Its population served is well below the county average of 2,285 people per system, and accounts for 0.1% of the 178,240 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Nahant Marsh is about 46% 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. Iowa has 626 active transient non-community water systems, 34% of the state's 1,828 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.
Who owns and regulates Nahant Marsh?
EPA lists Nahant Marsh as owned by a local government. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 20 of the 78 active systems in Scott County (26%) are also owned by a local government.
Does Nahant Marsh have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2019. By type: 1 monitoring and reporting. The contaminant or rule involved is Nitrate. EPA lists 1 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 |
|---|---|---|---|---|
| 2019-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
The one violation in EPA's records.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.
Nahant Marsh: frequently asked questions
Who runs Nahant Marsh?
Nahant Marsh (PWSID IA8222402) is a transient non-community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Nahant Marsh serve?
Nahant Marsh reports serving 210 people through 1 service connection in Scott County, Iowa.
Where does Nahant Marsh 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 Nahant Marsh have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 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 Nahant Marsh'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 one violation for this system; it is not health-based, and the most recent began in October 2019. For current results, consult EPA ECHO, or the IA state drinking water program.
Where can I find Nahant Marsh's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Nahant Marsh 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 Scott County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Iowa-American Wtr Co-Davenport | Scott | 147,720 | Community | Surface water |
| Eldridge Water Supply | Scott | 6,726 | Community | Groundwater |
| Genesis E Campus Hospital Emg Well | Scott | 6,165 | Non-transient non-community | Groundwater |
| Park View Water & Sanitary District | Scott | 2,389 | Community | Groundwater |
| Truckomat Corporation | Scott | 1,794 | Non-transient non-community | Groundwater |
| Walcott Waterworks | Scott | 1,556 | 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, “Nahant Marsh, PWSID IA8222402, Iowa”, https://aquacensus.com/water-systems/iowa/nahant-marsh-ia8222402 (data as of October 1, 2026).