Public water system · ID6210029
ActiveMidway Water System Inc.
At a glance
Midway Water System Inc. (PWSID ID6210029) is an active community water system in Franklin County, Idaho. It reports serving 50 people through 19 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
19
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Midway Water System Inc. compare with other water systems in Franklin County?
By EPA's size categories, Midway Water System Inc. is a very small system (500 people or fewer). Franklin County has 21 active public water systems. Its population served is well below the county average of 515 people per system, and accounts for 0.5% of the 10,819 people reported by systems filed under the county. Across Idaho, the 1,961 active systems average 899 people each. Nationally, the average active community water system reports serving 6,703 people, so Midway Water System Inc. is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Idaho has 765 active community water systems, 39% 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 Midway Water System Inc.?
EPA lists Midway Water System Inc. 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. 12 of the 21 active systems in Franklin County (57%) are also privately owned.
Does Midway Water System Inc. have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2023. The violations listed here began between January 2023 and April 2023. By type: 9 monitoring and reporting, 2 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Arsenic (9 of them). EPA lists 9 as archived, 2 as resolved 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. 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 |
|---|---|---|---|---|
| 2023-04-12 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2023-04-12 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2023-01-12 | Public notice, recordkeeping or otherFailure to Consult with State · code 20 | Groundwater Rulecode 0700 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
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.
Midway Water System Inc.: frequently asked questions
Who runs Midway Water System Inc.?
Midway Water System Inc. (PWSID ID6210029) is a community water system privately owned. It is regulated by the ID state drinking water program.
How many people does Midway Water System Inc. serve?
Midway Water System Inc. reports serving 50 people through 19 service connections in Franklin County, Idaho.
Where does Midway Water System Inc. 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 Midway Water System Inc. have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2023. 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 Midway Water System Inc.'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, one is health-based, and the most recent began in April 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the ID state drinking water program.
Where can I find Midway Water System Inc.'s water quality report?
As a community water system, Midway Water System Inc. must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Franklin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Preston City of | Franklin | 5,591 | Community | Groundwater |
| Fairview Water Dist | Franklin | 1,300 | Community | Groundwater |
| Franklin City of | Franklin | 1,000 | Community | Groundwater under influence of surface water |
| Dayton City of | Franklin | 510 | Community | Groundwater |
| Weston City of | Franklin | 490 | Community | Groundwater |
| Clifton City of | Franklin | 413 | 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, “Midway Water System Inc., PWSID ID6210029, Idaho”, https://aquacensus.com/water-systems/idaho/midway-water-system-inc-id6210029 (data as of October 1, 2026).