Skip to content
AquaCensus

Public water system · IA6469042

Active

Marshalltown Water Works

Community water system in Marshall County, Iowa, drawing primarily on groundwater.

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

Population served

27,680

Service connections

9,812

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDIA6469042
System typeCommunity water system
Activity statusActive
Population served27,680
Service connections9,812
Primary water sourceGroundwater
Owner typeLocal government
Primacy agencyIA state drinking water program
City servedMarshalltown
StateIowa
ZIP—
CountyMarshall County

Violations & enforcement

BeganViolationContaminant or ruleHealth-basedStatus
1994-04-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
1992-06-01Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24Total coliform bacteria (TCR)code 3100NoResolved
1986-10-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved

All 3 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.

Marshalltown Water Works: frequently asked questions

Is Marshalltown Water Works's water safe to drink?

Marshalltown Water Works is an active community water system regulated under the Safe Drinking Water Act, overseen by the IA state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.

Who runs Marshalltown Water Works?

Marshalltown Water Works (PWSID IA6469042) is a local government-owned community water system, regulated by the IA state drinking water program.

How many people does Marshalltown Water Works serve?

Marshalltown Water Works reports serving 27,680 people through 9,812 service connections in Marshall County, Iowa.

Where does Marshalltown Water Works get its water?

EPA SDWIS lists this system's primary water source as groundwater.

Other water systems in Marshall County

Water systemCountyPopulation servedTypeSource
State Center Muni Water DeptMarshall1,411CommunityGroundwater
Le Grand Water WorksMarshall910CommunityPurchased groundwater
Melbourne Water SupplyMarshall765CommunityPurchased groundwater
Gilman Water SupplyMarshall582CommunityPurchased groundwater
Sunset VillageMarshall528CommunityPurchased groundwater
Albion Water DepartmentMarshall448CommunityGroundwater

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.