Public water system · OH7300111
ActivePortsmouth City
At a glance
Portsmouth City (PWSID OH7300111) is an active community water system in Scioto County, Ohio. It reports serving 40,475 people through 13,442 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40,475
Service connections
13,442
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Portsmouth City compare with other water systems in Scioto County?
By EPA's size categories, Portsmouth City is a large system (10,001 to 100,000 people). Scioto County has 17 active public water systems, and Portsmouth City is the largest of them by population served. Its population served is about 8.3 times the county average of 4,896 people per system, and accounts for 49% of the 83,235 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active community water system reports serving 6,703 people, so Portsmouth City is about 6 times 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. Ohio has 1,028 active community water systems, 27% of the state's 3,854 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 102 Ohio systems (2.6%) list surface water as their primary source.
Who owns and regulates Portsmouth City?
EPA lists Portsmouth City as owned by a local government. The OH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 14 of the 17 active systems in Scioto County (82%) are also owned by a local government.
Does Portsmouth City have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2025. The violations listed here began between October 2002 and July 2025. By type: 3 public notice, recordkeeping or other, 1 reporting and 1 required treatment not met. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 3 as resolved and 2 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2022-08-17 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-10-27 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2020-02-11 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2002-10-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
All 5 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.
Portsmouth City: frequently asked questions
Who runs Portsmouth City?
Portsmouth City (PWSID OH7300111) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Portsmouth City serve?
Portsmouth City reports serving 40,475 people through 13,442 service connections in Scioto County, Ohio.
Where does Portsmouth City get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Portsmouth City have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 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 Portsmouth City'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 5 violations for this system; 1 is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Portsmouth City's water quality report?
As a community water system, Portsmouth City 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 Scioto County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Scioto Co. Regional Water District #1 | Scioto | 13,820 | Community | Groundwater |
| Northwest Regional Water District | Scioto | 11,059 | Community | Purchased groundwater |
| Scioto Water Inc..-Rose Hill | Scioto | 8,861 | Community | Groundwater |
| Scioto Water Inc..-Sugar Camp | Scioto | 6,458 | Community | Groundwater |
| Scioto Water Inc.. - Pond Run | Scioto | 845 | Community | Purchased surface water |
| Scioto Water Inc..-Sr125 | Scioto | 537 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Portsmouth City, PWSID OH7300111, Ohio”, https://aquacensus.com/water-systems/ohio/portsmouth-city-oh7300111 (data as of October 1, 2026).