Public water system · CO0162418
ActiveJohnstown Town of
Community water system in Weld County, Colorado, drawing primarily on surface water.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
27,295
Service connections
7,691
Primary source
SW
Surface water
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2022-08-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2021-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2021-06-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2021-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2021-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2021-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Long Term 2 Enhanced Surface Water Treatment Rulecode 0800 | No | Resolved |
| 2020-07-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2020-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2020-05-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2019-01-06 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | 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.
Johnstown Town of: frequently asked questions
Is Johnstown Town of's water safe to drink?
Johnstown Town of is an active community water system regulated under the Safe Drinking Water Act, overseen by the CO state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Johnstown Town of?
Johnstown Town of (PWSID CO0162418) is a local government-owned community water system, regulated by the CO state drinking water program.
How many people does Johnstown Town of serve?
Johnstown Town of reports serving 27,295 people through 7,691 service connections in Weld County, Colorado.
Where does Johnstown Town of get its water?
EPA SDWIS lists this system's primary water source as surface water.
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 |
| 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 |
| North Weld County Wd | Weld | 15,890 | Community | Purchased surface water |
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.