CALVIN
PWSID: OK2003201 · Calvin, OK · Serves 300 people
According to EPA Safe Drinking Water Information System (SDWIS), CALVIN (PWSID OK2003201) in Calvin, OK is listed as a CWS water system covering about 300 people. The same extract lists 5 health-based violation records spanning 1980-1996. Those 5 health-based rows for CALVIN cover contaminants such as Coliform (Pre-TCR), Tetrachloroethylene; they remain historical EPA registry entries, not a current compliance or drinkability score.
CALVIN has 5 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 2 distinct EPA contaminant codes appear in this system's record, including Coliform (Pre-TCR), Tetrachloroethylene. Recorded violations span 1980–1996. Day-to-day primacy enforcement for this system runs through the Oklahoma drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Oklahoma state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- OK2003201
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Calvin, OK
- Population Served
- 300
- Health Violations
- Yes (5)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Coliform (Pre-TCR) | 3 | 3 |
| Tetrachloroethylene | 2 | 2 |
Violation History (5)
| Contaminant | Health | Date |
|---|---|---|
| Tetrachloroethylene | Yes | Jul 1, 1996 |
| Tetrachloroethylene | Yes | Jan 1, 1996 |
| Coliform (Pre-TCR) | Yes | Nov 1, 1987 |
| Coliform (Pre-TCR) | Yes | Apr 1, 1986 |
| Coliform (Pre-TCR) | Yes | Apr 30, 1980 |
Frequently Asked Questions
What does EPA SDWIS list for CALVIN?
How many people does CALVIN serve?
What violations does CALVIN have?
What contaminants have been found in CALVIN water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest CALVIN on cumulative violation count (5) and EPA-reported population served (300). Violation-count peers include Jemez Pueblo, Acoma Main, OMAHA TRIBE PWS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
CALVIN (OK2003201) is drawn from EPA SDWIS. Nearby county systems in this extract include HOLDENVILLE; WETUMKA; HUGHES CO. RWD #1; HUGHES CO. RWD #2. Health-based rows (5 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.