Public water system · OK2003201
ActiveCalvin
Community water system in Hughes County, Oklahoma, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
300
Service connections
138
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | 71 | 7000 | No | Resolved |
| 2023-10-02 | 72 | 7000 | No | Resolved |
| 2021-04-01 | 03 | 4100 | No | Resolved |
| 2021-04-01 | 03 | 4000 | No | Resolved |
| 2021-04-01 | 03 | 4010 | No | Resolved |
| 2021-04-01 | 03 | 4006 | No | Resolved |
| 2020-01-01 | 03 | 1038 | No | Resolved |
| 2017-07-01 | 71 | 7000 | No | Resolved |
| 2015-07-01 | 71 | 7000 | No | Resolved |
| 2015-05-01 | 22 | 3100 | Yes | Resolved |
| 2015-05-01 | 26 | 3100 | No | Resolved |
| 2014-07-01 | 71 | 7000 | No | Resolved |
Calvin: frequently asked questions
Is Calvin's water safe to drink?
Calvin is an active community water system regulated under the Safe Drinking Water Act, overseen by the OK state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Calvin?
Calvin (PWSID OK2003201) is a local government-owned community water system, regulated by the OK state drinking water program.
How many people does Calvin serve?
Calvin reports serving 300 people through 138 service connections in Hughes County, Oklahoma.
Where does Calvin get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Hughes County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pierre | Hughes | 14,091 | Community | Surface water |
| Mid-Dakota Rural Water | Hughes | 11,833 | Community | Surface water |
| Holdenville | Hughes | 4,732 | Community | Surface water |
| Hughes Co. Rwd #6 (Gerty) | Hughes | 2,180 | Community | Groundwater |
| Wetumka | Hughes | 1,451 | Community | Surface water |
| Hughes Co. Rwd #1 | Hughes | 1,225 | Community | Groundwater |