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Public water system · IA0330203

Active

Portside One Stop

At a glance

Portside One Stop (PWSID IA0330203) is an active transient non-community water system in Allamakee County, Iowa. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

50

Service connections

1

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDIA0330203
System typeTransient non-community water system
Activity statusActive
Population served50
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyIA state drinking water program
City servedHarpers Ferry
StateIowa
ZIP—
CountyAllamakee County

How does Portside One Stop compare with other water systems in Allamakee County?

By EPA's size categories, Portside One Stop is a very small system (500 people or fewer). Allamakee County has 34 active public water systems. Its population served is well below the county average of 306 people per system, and accounts for 0.5% of the 10,414 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 Portside One Stop is about 65% 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. 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 Portside One Stop?

EPA lists Portside One Stop as privately owned. 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. 28 of the 34 active systems in Allamakee County (82%) are also privately owned.

Does Portside One Stop have drinking water violations?

No SDWA violations on record.

EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Portside One Stop. For the latest compliance status, check EPA ECHO for current compliance history.

Portside One Stop: frequently asked questions

Who runs Portside One Stop?

Portside One Stop (PWSID IA0330203) is a transient non-community water system privately owned. It is regulated by the IA state drinking water program.

How many people does Portside One Stop serve?

Portside One Stop reports serving 50 people through 1 service connection in Allamakee County, Iowa.

Where does Portside One Stop 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 Portside One Stop have any drinking water violations?

EPA's Safe Drinking Water Act records list no violations for this system.

Is Portside One Stop'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the IA state drinking water program.

Where can I find Portside One Stop's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Portside One Stop 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 Allamakee County

Water systemCountyPopulation servedTypeSource
Waukon Water DepartmentAllamakee3,827CommunityGroundwater
Postville Water DepartmentAllamakee2,513CommunityGroundwater
Lansing Water SupplyAllamakee983CommunityGroundwater
Agri Star Meat and Poultry LLCAllamakee550Non-transient non-communityGroundwater
New Albin Water SupplyAllamakee432CommunityGroundwater
Harpers Ferry City ComplexAllamakee262Transient non-communityGroundwater

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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, “Portside One Stop, PWSID IA0330203, Iowa”, https://aquacensus.com/water-systems/iowa/portside-one-stop-ia0330203 (data as of October 1, 2026).