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Public water system · MI0005360

Active

Pittsfield Township

At a glance

Pittsfield Township (PWSID MI0005360) is an active community water system in Washtenaw County, Michigan. It reports serving 24,500 people through 8,166 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2025.

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

Population served

24,500

Service connections

8,166

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDMI0005360
System typeCommunity water system
Activity statusActive
Population served24,500
Service connections8,166
Primary water sourcePurchased surface water
Owner typeLocal government
Primacy agencyMI state drinking water program
City servedAnn Arbor
StateMichigan
ZIP—
CountyWashtenaw County

How does Pittsfield Township compare with other water systems in Washtenaw County?

By EPA's size categories, Pittsfield Township is a large system (10,001 to 100,000 people). Washtenaw County has 262 active public water systems, and Pittsfield Township is the 3rd-largest of them by population served. Its population served is about 21 times the county average of 1,147 people per system, and accounts for 8.2% of the 300,406 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active community water system reports serving 6,703 people, so Pittsfield Township is about 3.7 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. Michigan has 1,332 active community water systems, 13% of the state's 10,599 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 262 Michigan systems (2.5%) list purchased surface water as their primary source.

Who owns and regulates Pittsfield Township?

EPA lists Pittsfield Township as owned by a local government. The MI 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 262 active systems in Washtenaw County (6.1%) are also owned by a local government.

Does Pittsfield Township have drinking water violations?

EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between December 2017 and July 2025. By type: 5 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Haloacetic acids (HAA5) (3 of them). EPA lists 6 as resolved. 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.

BeganViolationContaminant or ruleHealth-basedStatus
2025-07-01Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72Consumer Confidence Rulecode 7000NoResolved
2023-10-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Total trihalomethanes (TTHM)code 2950NoResolved
2023-10-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Haloacetic acids (HAA5)code 2456NoResolved
2022-10-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Haloacetic acids (HAA5)code 2456NoResolved
2017-12-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Haloacetic acids (HAA5)code 2456NoResolved
2017-12-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Total trihalomethanes (TTHM)code 2950NoResolved

All 6 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.

Pittsfield Township: frequently asked questions

Who runs Pittsfield Township?

Pittsfield Township (PWSID MI0005360) is a community water system owned by a local government. It is regulated by the MI state drinking water program.

How many people does Pittsfield Township serve?

Pittsfield Township reports serving 24,500 people through 8,166 service connections in Washtenaw County, Michigan.

Where does Pittsfield Township get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does Pittsfield Township have any drinking water violations?

EPA's records list 6 violations for this system; none 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 Pittsfield Township'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 6 violations for this system; none 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 MI state drinking water program.

Where can I find Pittsfield Township's water quality report?

As a community water system, Pittsfield Township 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 Washtenaw County

Water systemCountyPopulation servedTypeSource
Ann ArborWashtenaw123,851CommunitySurface water
Ypsilanti Community Utility AuthorityWashtenaw53,988CommunityPurchased surface water
SalineWashtenaw9,158CommunityGroundwater
Scio TownshipWashtenaw8,500CommunityPurchased surface water
MilanWashtenaw7,363CommunityGroundwater
Superior TownshipWashtenaw6,830CommunityPurchased surface water

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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, “Pittsfield Township, PWSID MI0005360, Michigan”, https://aquacensus.com/water-systems/michigan/pittsfield-township-mi0005360 (data as of October 1, 2026).