MARSHALLTOWN WATER WORKS
Iowa — Community Water System — PWSID: IA6469042
System Information
| PWSID | IA6469042 |
| System Name | MARSHALLTOWN WATER WORKS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 27, 1979 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Iowa |
| City | MARSHALLTOWN |
| ZIP Code | 50158 |
| Address | ATTN ZACH MAXFIELD GENERAL MGR |
| Organization | MARSHALLTOWN WATERWORKS BOARD OF TRUSTEE |
| Phone | 641-753-7913 |
Population & Service
| Population Served | 27,591 |
| Service Connections | 9,812 |
Drinking Water Violations (28)
This water system has 28 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 1994 | Apr 30, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1994 | — | |
| Apr 1, 1994 | Apr 30, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1994 | — | |
| Apr 1, 1994 | Apr 30, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1994 | — | |
| Apr 1, 1994 | Apr 30, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1994 | — | |
| Apr 1, 1994 | Apr 30, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1994 | — | |
| Apr 1, 1994 | Apr 30, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 1994 | — | |
| Jun 1, 1992 | Jun 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1992 | — | |
| Jun 1, 1992 | Jun 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1992 | — | |
| Jun 1, 1992 | Jun 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1992 | — | |
| Oct 1, 1986 | Sep 30, 1989 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1989 | — | |
| Oct 1, 1986 | Sep 30, 1989 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1989 | — | |
| Oct 1, 1986 | Sep 30, 1989 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1989 | — | |
| Oct 1, 1986 | Sep 30, 1989 | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1989 | — | |
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About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.