Public water system · OH0200811

Active

Lima City

At a glance

Lima City (PWSID OH0200811) is an active community water system in Allen County, Ohio. It reports serving 65,619 people through 27,113 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in April 2024.

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

Population served

65,619

Service connections

27,113

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDOH0200811

System typeCommunity water system

Activity statusActive

Population served65,619

Service connections27,113

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyOH state drinking water program

City served—

StateOhio

ZIP—

CountyAllen County

How does Lima City compare with other water systems in Allen County?

By EPA's size categories, Lima City is a large system (10,001 to 100,000 people). Allen County has 39 active public water systems, and Lima City is the largest of them by population served. Its population served is about 28 times the county average of 2,324 people per system, and accounts for 72% of the 90,630 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 Lima City is about 9.8 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 Lima City?

EPA lists Lima 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. 6 of the 39 active systems in Allen County (15%) are also owned by a local government.

Does Lima City have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in April 2024. The violations listed here began between July 2004 and April 2024. By type: 7 monitoring and reporting, 2 contaminant level above the legal limit, 2 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (3 of them). EPA lists 11 as resolved and 1 as archived. 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. 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.

Began	Violation	Contaminant or rule	Health-based	Status
2024-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2022-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2019-02-14	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2018-02-01	Public notice, recordkeeping or otherRecord Keeping · code 09	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2016-12-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2016-12-01	Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2015-04-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2004-07-01	Monitoring and reportingMonitoring, Regular · code 03	Simazinecode 2037	No	Resolved
2004-07-01	Monitoring and reportingMonitoring, Regular · code 03	Alachlor (Lasso)code 2051	No	Resolved
2004-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2004-07-01	Monitoring and reportingMonitoring, Regular · code 03	Atrazinecode 2050	No	Resolved
2004-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	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.

Lima City: frequently asked questions

Who runs Lima City?

Lima City (PWSID OH0200811) is a community water system owned by a local government. It is regulated by the OH state drinking water program.

How many people does Lima City serve?

Lima City reports serving 65,619 people through 27,113 service connections in Allen County, Ohio.

Where does Lima 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 Lima City have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in April 2024. 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 Lima 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. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in April 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.

Where can I find Lima City's water quality report?

As a community water system, Lima 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 Allen County

Water system	County	Population served	Type	Source
Delphos City	Allen	7,101	Community	Surface water
Bluffton Village	Allen	4,125	Community	Purchased surface water
Elida Village	Allen	4,109	Community	Purchased surface water
Spencerville Village	Allen	2,261	Community	Groundwater
Odot Rest Area 1-31 Eb	Allen	1,000	Transient non-community	Groundwater
Odot Rest Area 1-32 Wb	Allen	1,000	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, “Lima City, PWSID OH0200811, Ohio”, https://aquacensus.com/water-systems/ohio/lima-city-oh0200811 (data as of October 1, 2026).