Public water system · KS2005906
ActiveOttawa, City of
At a glance
City of Ottawa (PWSID KS2005906) is an active community water system in Franklin County, Kansas. It reports serving 12,604 people through 5,341 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
12,604
Service connections
5,341
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Ottawa compare with other water systems in Franklin County?
By EPA's size categories, City of Ottawa is a large system (10,001 to 100,000 people). Franklin County has 14 active public water systems, and City of Ottawa is the largest of them by population served. Its population served is about 7.3 times the county average of 1,726 people per system, and accounts for 52% of the 24,169 people reported by systems filed under the county. Across Kansas, the 1,041 active systems average 2,800 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Ottawa is about 88% 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. Kansas has 863 active community water systems, 83% of the state's 1,041 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 75 Kansas systems (7.2%) list surface water as their primary source.
Who owns and regulates City of Ottawa?
EPA lists City of Ottawa as owned by a local government. The KS state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 14 of the 14 active systems in Franklin County (100%) are also owned by a local government.
Does City of Ottawa have drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in July 2024. The violations listed here began between October 2019 and July 2024. By type: 3 contaminant level above the legal limit, 1 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Haloacetic acids (HAA5) (3 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2024-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2022-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2020-03-15 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2019-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
All 5 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.
City of Ottawa: frequently asked questions
Who runs City of Ottawa?
City of Ottawa (PWSID KS2005906) is a community water system owned by a local government. It is regulated by the KS state drinking water program.
How many people does City of Ottawa serve?
City of Ottawa reports serving 12,604 people through 5,341 service connections in Franklin County, Kansas.
Where does City of Ottawa get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does City of Ottawa have any drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in July 2024. 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 City of Ottawa'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 5 violations for this system; 3 are health-based, and the most recent began in July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the KS state drinking water program.
Where can I find City of Ottawa's water quality report?
As a community water system, City of Ottawa 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 Franklin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Franklin Co Rwd 6 | Franklin | 2,960 | Community | Surface water |
| Franklin Co Rwd 4 | Franklin | 2,281 | Community | Purchased surface water |
| Wellsville, City of | Franklin | 1,933 | Community | Purchased surface water |
| Pomona, City of | Franklin | 890 | Community | Purchased surface water |
| Franklin Co Rwd 5 | Franklin | 855 | Community | Purchased surface water |
| Franklin Co Rwd 1 | Franklin | 665 | Community | Purchased surface water |
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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, “Ottawa, City of, PWSID KS2005906, Kansas”, https://aquacensus.com/water-systems/kansas/ottawa-city-of-ks2005906 (data as of October 1, 2026).