Public water system · OH2301812
ActiveGreenfield Twp Water District
At a glance
Greenfield Twp Water District (PWSID OH2301812) is an active community water system in Fairfield County, Ohio. It reports serving 490 people through 122 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
490
Service connections
122
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Greenfield Twp Water District compare with other water systems in Fairfield County?
By EPA's size categories, Greenfield Twp Water District is a very small system (500 people or fewer). Fairfield County has 70 active public water systems. Its population served is about 65% below the county average of 1,415 people per system, and accounts for 0.5% of the 99,017 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 Greenfield Twp Water District 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. Ohio has 1,028 active community water systems, 27% of the state's 3,854 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,446 Ohio systems (89%) list groundwater as their primary source.
Who owns and regulates Greenfield Twp Water District?
EPA lists Greenfield Twp Water District 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. 16 of the 70 active systems in Fairfield County (23%) are also owned by a local government.
Does Greenfield Twp Water District have drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2009. The violations listed here began between October 1984 and July 2009. By type: 10 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Nitrate (2 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2009-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1999-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1997-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1995-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1994-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nickelcode 1036 | No | Resolved |
| 1993-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cyanidecode 1024 | No | Resolved |
| 1993-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Berylliumcode 1075 | No | Resolved |
| 1993-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | No | Resolved |
| 1993-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Thalliumcode 1085 | No | Resolved |
| 1984-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | 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.
Greenfield Twp Water District: frequently asked questions
Who runs Greenfield Twp Water District?
Greenfield Twp Water District (PWSID OH2301812) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Greenfield Twp Water District serve?
Greenfield Twp Water District reports serving 490 people through 122 service connections in Fairfield County, Ohio.
Where does Greenfield Twp Water District 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 Greenfield Twp Water District have any drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2009. 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 Greenfield Twp Water District'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 11 violations for this system; none is health-based, and the most recent began in July 2009. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Greenfield Twp Water District's water quality report?
As a community water system, Greenfield Twp Water District 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 Fairfield County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lancaster City Pws | Fairfield | 40,400 | Community | Groundwater |
| Pickerington City Pws | Fairfield | 19,141 | Community | Groundwater |
| Fairfield County Utilities Pws | Fairfield | 15,486 | Community | Groundwater |
| Millersport Village Pws | Fairfield | 3,200 | Community | Groundwater |
| Baltimore Village Pws | Fairfield | 2,995 | Community | Groundwater |
| Canal Pointe Industrial Park Pws | Fairfield | 1,721 | Community | Purchased 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, “Greenfield Twp Water District, PWSID OH2301812, Ohio”, https://aquacensus.com/water-systems/ohio/greenfield-twp-water-district-oh2301812 (data as of October 1, 2026).