Public water system · ID3380036

Active

Hammer Stores

At a glance

Hammer Stores (PWSID ID3380036) is an active transient non-community water system in Payette County, Idaho. It reports serving 500 people through 26 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; 4 are health-based, and the most recent began in July 2012.

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

Population served

500

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDID3380036

System typeTransient non-community water system

Activity statusActive

Population served500

Service connections26

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyID state drinking water program

City served—

StateIdaho

ZIP—

CountyPayette County

How does Hammer Stores compare with other water systems in Payette County?

By EPA's size categories, Hammer Stores is a very small system (500 people or fewer). Payette County has 19 active public water systems, and Hammer Stores is the 5th-largest of them by population served. Its population served is about half of the county average of 1,059 people per system, and accounts for 2.5% of the 20,117 people reported by systems filed under the county. Across Idaho, the 1,961 active systems average 899 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Hammer Stores is about 3.5 times 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. Idaho has 954 active transient non-community water systems, 49% of the state's 1,961 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,861 Idaho systems (95%) list groundwater as their primary source.

Who owns and regulates Hammer Stores?

EPA lists Hammer Stores as privately owned. The ID state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 15 of the 19 active systems in Payette County (79%) are also privately owned.

Does Hammer Stores have drinking water violations?

EPA's records list 11 violations for this system; 4 are health-based, and the most recent began in July 2012. The violations listed here began between July 2001 and July 2012. By type: 6 monitoring and reporting, 4 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (9 of them). EPA lists 10 as archived and 1 as unaddressed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. 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
2012-07-02	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Unaddressed
2012-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
2011-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitritecode 1041	No	Archived
2010-09-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
2010-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
2005-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
2005-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
2001-12-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
2001-10-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Archived
2001-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
2001-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived

All 11 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.

Hammer Stores: frequently asked questions

Who runs Hammer Stores?

Hammer Stores (PWSID ID3380036) is a transient non-community water system privately owned. It is regulated by the ID state drinking water program.

How many people does Hammer Stores serve?

Hammer Stores reports serving 500 people through 26 service connections in Payette County, Idaho.

Where does Hammer Stores 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 Hammer Stores have any drinking water violations?

EPA's records list 11 violations for this system; 4 are health-based, and the most recent began in July 2012. 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 Hammer Stores' 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 11 violations for this system; 4 are health-based, and the most recent began in July 2012. For current results, consult EPA ECHO, or the ID state drinking water program.

Where can I find Hammer Stores' water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Hammer Stores 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 Payette County

Water system	County	Population served	Type	Source
Payette City of	Payette	8,127	Community	Groundwater
Fruitland City of	Payette	7,458	Community	Surface water
New Plymouth City of	Payette	1,600	Community	Groundwater
Itd Snake River View Rest Area	Payette	1,500	Transient non-community	Groundwater
Basf-Nunhems	Payette	230	Non-transient non-community	Groundwater
Sand Hollow Country Stores and Cafe	Payette	100	Transient non-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, “Hammer Stores, PWSID ID3380036, Idaho”, https://aquacensus.com/water-systems/idaho/hammer-stores-id3380036 (data as of October 1, 2026).