Public water system · IA2242203

Active

Stockyard

At a glance

Stockyard (PWSID IA2242203) is an active transient non-community water system in Clayton County, Iowa. It reports serving 100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

100

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDIA2242203

System typeTransient non-community water system

Activity statusActive

Population served100

Service connections1

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyIA state drinking water program

City servedOsterdock

StateIowa

ZIP—

CountyClayton County

How does Stockyard compare with other water systems in Clayton County?

By EPA's size categories, Stockyard is a very small system (500 people or fewer). Clayton County has 45 active public water systems. Its population served is about 66% below the county average of 298 people per system, and accounts for 0.7% of the 13,403 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 Stockyard is about 31% 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 Stockyard?

EPA lists Stockyard 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 45 active systems in Clayton County (62%) are also privately owned.

Does Stockyard have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025. The violations listed here began between September 2021 and November 2025. By type: 6 public notice, recordkeeping or other, 5 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Public Notice (6 of them). EPA lists 11 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

Began	Violation	Contaminant or rule	Health-based	Status
2025-11-24	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2025-11-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2025-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2025-07-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2024-01-23	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2023-12-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2023-09-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-11-17	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2021-11-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-10-16	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Unaddressed
2021-10-16	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2021-09-02	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved

The 12 most recent 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.

Stockyard: frequently asked questions

Who runs Stockyard?

Stockyard (PWSID IA2242203) is a transient non-community water system privately owned. It is regulated by the IA state drinking water program.

How many people does Stockyard serve?

Stockyard reports serving 100 people through 1 service connection in Clayton County, Iowa.

Where does Stockyard 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 Stockyard have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025. 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 Stockyard'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in November 2025. For current results, consult EPA ECHO, or the IA state drinking water program.

Where can I find Stockyard's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Stockyard 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 Clayton County

Water system	County	Population served	Type	Source
Guttenberg Water Utility	Clayton	1,817	Community	Groundwater
Monona Municipal Water Dept	Clayton	1,471	Community	Groundwater
Elkader Muni Water Dept	Clayton	1,219	Community	Groundwater
Strawberry Point Water Supply	Clayton	1,155	Community	Groundwater
Edgewood Water Supply	Clayton	939	Community	Groundwater
Garnavillo Water Supply	Clayton	763	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, “Stockyard, PWSID IA2242203, Iowa”, https://aquacensus.com/water-systems/iowa/stockyard-ia2242203 (data as of October 1, 2026).