Public water system · IA6457070
ActiveLe Grand Water Works
At a glance
Le Grand Water Works (PWSID IA6457070) is an active community water system in Marshall County, Iowa. It reports serving 910 people through 365 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in January 2002.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
910
Service connections
365
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Le Grand Water Works compare with other water systems in Marshall County?
By EPA's size categories, Le Grand Water Works is a small system (501 to 3,300 people). Marshall County has 12 active public water systems, and Le Grand Water Works is the 3rd-largest of them by population served. Its population served is well below the county average of 2,802 people per system, and accounts for 2.7% of the 33,628 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active community water system reports serving 6,703 people, so Le Grand Water Works 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. Iowa has 1,084 active community water systems, 59% of the state's 1,828 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 156 Iowa systems (8.5%) list purchased groundwater as their primary source.
Who owns and regulates Le Grand Water Works?
EPA lists Le Grand Water Works as owned by a local government. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 10 of the 12 active systems in Marshall County (83%) are also owned by a local government.
Does Le Grand Water Works have drinking water violations?
EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in January 2002. The violations listed here began between April 1988 and January 2002. By type: 5 monitoring and reporting, 2 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 8 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2002-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-10-19 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1996-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Atrazinecode 2050 | No | Resolved |
| 1995-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Atrazinecode 2050 | No | Resolved |
| 1993-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 8 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.
Le Grand Water Works: frequently asked questions
Who runs Le Grand Water Works?
Le Grand Water Works (PWSID IA6457070) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Le Grand Water Works serve?
Le Grand Water Works reports serving 910 people through 365 service connections in Marshall County, Iowa.
Where does Le Grand Water Works get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Le Grand Water Works have any drinking water violations?
EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in January 2002. 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 Le Grand Water Works' 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 8 violations for this system; 2 are health-based, and the most recent began in January 2002. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Le Grand Water Works' water quality report?
As a community water system, Le Grand Water Works 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 Marshall County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Marshalltown Water Works | Marshall | 27,680 | Community | Groundwater |
| State Center Muni Water Dept | Marshall | 1,411 | Community | Groundwater |
| Melbourne Water Supply | Marshall | 765 | Community | Purchased groundwater |
| Gilman Water Supply | Marshall | 582 | Community | Purchased groundwater |
| Sunset Village | Marshall | 528 | Community | Purchased groundwater |
| Albion Water Department | Marshall | 448 | 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, “Le Grand Water Works, PWSID IA6457070, Iowa”, https://aquacensus.com/water-systems/iowa/le-grand-water-works-ia6457070 (data as of October 1, 2026).