Public water system · IA1178097
ActiveStorm Lake Water Treatment Plant
At a glance
Storm Lake Water Treatment Plant (PWSID IA1178097) is an active community water system in Buena Vista County, Iowa. It reports serving 11,431 people through 3,908 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
11,431
Service connections
3,908
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Storm Lake Water Treatment Plant compare with other water systems in Buena Vista County?
By EPA's size categories, Storm Lake Water Treatment Plant is a large system (10,001 to 100,000 people). Buena Vista County has 12 active public water systems, and Storm Lake Water Treatment Plant is the largest of them by population served. Its population served is about 7.8 times the county average of 1,475 people per system, and accounts for 65% of the 17,699 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 Storm Lake Water Treatment Plant is about 71% above 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.
Who owns and regulates Storm Lake Water Treatment Plant?
EPA lists Storm Lake Water Treatment Plant 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 Buena Vista County (83%) are also owned by a local government.
Does Storm Lake Water Treatment Plant have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2020. The violations listed here began between January 1999 and June 2020. By type: 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Nitrite (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 |
|---|---|---|---|---|
| 2020-06-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloritecode 1009 | No | Resolved |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2007-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 1999-01-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | 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.
Storm Lake Water Treatment Plant: frequently asked questions
Who runs Storm Lake Water Treatment Plant?
Storm Lake Water Treatment Plant (PWSID IA1178097) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Storm Lake Water Treatment Plant serve?
Storm Lake Water Treatment Plant reports serving 11,431 people through 3,908 service connections in Buena Vista County, Iowa.
Where does Storm Lake Water Treatment Plant get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Storm Lake Water Treatment Plant have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2020. 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 Storm Lake Water Treatment Plant'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 4 violations for this system; none is health-based, and the most recent began in June 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Storm Lake Water Treatment Plant's water quality report?
As a community water system, Storm Lake Water Treatment Plant 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 Buena Vista County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Alta Municipal Water Plant | Buena Vista | 2,087 | Community | Groundwater |
| Sioux Rapids Water Department | Buena Vista | 932 | Community | Groundwater |
| Newell Water Treatment Plant | Buena Vista | 906 | Community | Groundwater |
| Lakeside Water Supply | Buena Vista | 700 | Community | Purchased groundwater |
| Albert City Muni Water Supply | Buena Vista | 677 | Community | Groundwater |
| Marathon Light & Water Department | Buena Vista | 230 | 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, “Storm Lake Water Treatment Plant, PWSID IA1178097, Iowa”, https://aquacensus.com/water-systems/iowa/storm-lake-water-treatment-plant-ia1178097 (data as of October 1, 2026).