Public water system · IA2424701
ActiveW Central Rwa - Denison Subsys
At a glance
W Central Rwa - Denison Subsys (PWSID IA2424701) is an active community water system in Crawford County, Iowa. It reports serving 2,428 people through 971 service connections. Its primary water source is purchased groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in August 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,428
Service connections
971
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does W Central Rwa - Denison Subsys compare with other water systems in Crawford County?
By EPA's size categories, W Central Rwa - Denison Subsys is a small system (501 to 3,300 people). Crawford County has 10 active public water systems, and W Central Rwa - Denison Subsys is the 2nd-largest of them by population served. Its population served is about 56% above the county average of 1,553 people per system, and accounts for 16% of the 15,526 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 W Central Rwa - Denison Subsys is about 64% 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 W Central Rwa - Denison Subsys?
EPA lists W Central Rwa - Denison Subsys as privately owned. 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. 1 of the 10 active systems in Crawford County (10%) are also privately owned.
Does W Central Rwa - Denison Subsys have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in August 2013. The violations listed here began between August 2013 and August 2013. By type: 4 monitoring and reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (2 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2013-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2013-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2013-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2013-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
All 4 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.
W Central Rwa - Denison Subsys: frequently asked questions
Who runs W Central Rwa - Denison Subsys?
W Central Rwa - Denison Subsys (PWSID IA2424701) is a community water system privately owned. It is regulated by the IA state drinking water program.
How many people does W Central Rwa - Denison Subsys serve?
W Central Rwa - Denison Subsys reports serving 2,428 people through 971 service connections in Crawford County, Iowa.
Where does W Central Rwa - Denison Subsys 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 W Central Rwa - Denison Subsys have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in August 2013. 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 W Central Rwa - Denison Subsys' 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 4 violations for this system; none is health-based, and the most recent began in August 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find W Central Rwa - Denison Subsys' water quality report?
As a community water system, W Central Rwa - Denison Subsys 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 Crawford County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Denison Water Supply | Crawford | 9,381 | Community | Groundwater |
| Schleswig Munic Water Supply | Crawford | 803 | Community | Purchased groundwater |
| Manilla Muni Service Dept | Crawford | 758 | Community | Groundwater |
| Charter Oak Water Supply | Crawford | 522 | Community | Purchased groundwater |
| Dow City Water Works | Crawford | 467 | Community | Groundwater |
| Vail Water Supply | Crawford | 383 | 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, “W Central Rwa - Denison Subsys, PWSID IA2424701, Iowa”, https://aquacensus.com/water-systems/iowa/w-central-rwa-denison-subsys-ia2424701 (data as of October 1, 2026).