Public water system · CO0162291

Active

Ft Lupton City of

At a glance

City of Ft Lupton (PWSID CO0162291) is an active community water system in Weld County, Colorado. It reports serving 12,099 people through 3,303 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

12,099

Service connections

3,303

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDCO0162291

System typeCommunity water system

Activity statusActive

Population served12,099

Service connections3,303

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyCO state drinking water program

City served—

StateColorado

ZIP—

CountyWeld County

How does City of Ft Lupton compare with other water systems in Weld County?

By EPA's size categories, City of Ft Lupton is a large system (10,001 to 100,000 people). Weld County has 75 active public water systems. Its population served is about 151% above the county average of 4,824 people per system, and accounts for 3.3% of the 361,765 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Ft Lupton is about 81% 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. Colorado has 1,068 active community water systems, 48% of the state's 2,207 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 228 Colorado systems (10%) list surface water as their primary source.

Who owns and regulates City of Ft Lupton?

EPA lists City of Ft Lupton as owned by a local government. The CO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 31 of the 75 active systems in Weld County (41%) are also owned by a local government.

Does City of Ft Lupton have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2024. The violations listed here began between April 2022 and February 2024. By type: 8 monitoring and reporting, 3 required treatment not met and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Surface Water Treatment Rule (5 of them). EPA lists 12 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
2024-02-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2024-01-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2023-09-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2023-09-01	Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2023-08-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	Resolved
2022-11-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2022-11-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2022-08-12	Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76	Public Noticecode 7500	No	Resolved
2022-07-01	Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2022-07-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2022-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2022-04-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved

The 12 most recent 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 Ft Lupton: frequently asked questions

Who runs City of Ft Lupton?

City of Ft Lupton (PWSID CO0162291) is a community water system owned by a local government. It is regulated by the CO state drinking water program.

How many people does City of Ft Lupton serve?

City of Ft Lupton reports serving 12,099 people through 3,303 service connections in Weld County, Colorado.

Where does City of Ft Lupton 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 Ft Lupton have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 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 Ft Lupton'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. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.

Where can I find City of Ft Lupton's water quality report?

As a community water system, City of Ft Lupton 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 Weld County

Water system	County	Population served	Type	Source
Greeley City of	Weld	132,310	Community	Surface water
Firestone Town of	Weld	27,798	Community	Purchased surface water
Johnstown Town of	Weld	27,295	Community	Surface water
Windsor Town of	Weld	23,500	Community	Purchased surface water
Evans City of	Weld	19,369	Community	Purchased surface water
Frederick Town of	Weld	17,173	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, “Ft Lupton City of, PWSID CO0162291, Colorado”, https://aquacensus.com/water-systems/colorado/ft-lupton-city-of-co0162291 (data as of October 1, 2026).