CANADIAN CO RWD # 1
PWSID: OK2000908 · Calumet, OK · Serves 750 people
According to EPA Safe Drinking Water Information System (SDWIS), CANADIAN CO RWD # 1 (PWSID OK2000908) in Calumet, OK is listed as a CWS water system covering about 750 people. The same extract lists 129 health-based violation records spanning 1980-2025. Those 129 health-based rows for CANADIAN CO RWD # 1 cover contaminants such as Nitrate-Nitrite, Nitrate, Coliform (TCR); they remain historical EPA registry entries, not a current compliance or drinkability score.
CANADIAN CO RWD # 1 has 129 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. 4 distinct EPA contaminant codes appear in this system's record, including Nitrate-Nitrite, Nitrate, Coliform (TCR). Recorded violations span 1980–2025. 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)
- OK2000908
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Calumet, OK
- Population Served
- 750
- Health Violations
- Yes (129)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Nitrate-Nitrite | 110 | 110 |
| Nitrate | 11 | 11 |
| Coliform (TCR) | 4 | 4 |
| Coliform (Pre-TCR) | 4 | 4 |
Violation History (129)
| Contaminant | Health | Date |
|---|---|---|
| Nitrate-Nitrite | Yes | Oct 1, 2025 |
| Nitrate-Nitrite | Yes | Jul 1, 2025 |
| Nitrate-Nitrite | Yes | Apr 1, 2025 |
| Nitrate-Nitrite | Yes | Jan 1, 2025 |
| Nitrate-Nitrite | Yes | Jan 1, 2025 |
| Nitrate-Nitrite | Yes | Oct 1, 2024 |
| Nitrate-Nitrite | Yes | Oct 1, 2024 |
| Nitrate-Nitrite | Yes | Oct 1, 2024 |
| Nitrate-Nitrite | Yes | Jul 1, 2024 |
| Nitrate-Nitrite | Yes | Jul 1, 2024 |
| Nitrate-Nitrite | Yes | Jul 1, 2024 |
| Nitrate-Nitrite | Yes | Apr 1, 2024 |
| Nitrate-Nitrite | Yes | Apr 1, 2024 |
| Nitrate-Nitrite | Yes | Jan 1, 2024 |
| Nitrate-Nitrite | Yes | Jan 1, 2024 |
| Nitrate-Nitrite | Yes | Jan 1, 2024 |
| Nitrate-Nitrite | Yes | Oct 1, 2023 |
| Nitrate-Nitrite | Yes | Oct 1, 2023 |
| Nitrate-Nitrite | Yes | Oct 1, 2023 |
| Nitrate-Nitrite | Yes | Oct 1, 2023 |
| Nitrate-Nitrite | Yes | Jul 1, 2023 |
| Nitrate-Nitrite | Yes | Jul 1, 2023 |
| Nitrate-Nitrite | Yes | Jul 1, 2023 |
| Nitrate-Nitrite | Yes | Jul 1, 2023 |
| Nitrate-Nitrite | Yes | Apr 1, 2023 |
| Nitrate-Nitrite | Yes | Apr 1, 2023 |
| Nitrate-Nitrite | Yes | Apr 1, 2023 |
| Nitrate-Nitrite | Yes | Apr 1, 2023 |
| Nitrate-Nitrite | Yes | Jan 1, 2023 |
| Nitrate-Nitrite | Yes | Jan 1, 2023 |
| Nitrate-Nitrite | Yes | Jan 1, 2023 |
| Nitrate-Nitrite | Yes | Oct 1, 2022 |
| Nitrate-Nitrite | Yes | Oct 1, 2022 |
| Nitrate-Nitrite | Yes | Oct 1, 2022 |
| Nitrate-Nitrite | Yes | Oct 1, 2022 |
| Nitrate-Nitrite | Yes | Jul 1, 2022 |
| Nitrate-Nitrite | Yes | Jul 1, 2022 |
| Nitrate-Nitrite | Yes | Jul 1, 2022 |
| Nitrate-Nitrite | Yes | Apr 1, 2022 |
| Nitrate-Nitrite | Yes | Apr 1, 2022 |
| Nitrate-Nitrite | Yes | Apr 1, 2022 |
| Nitrate-Nitrite | Yes | Jan 1, 2022 |
| Nitrate-Nitrite | Yes | Jan 1, 2022 |
| Nitrate-Nitrite | Yes | Oct 1, 2021 |
| Nitrate-Nitrite | Yes | Oct 1, 2021 |
| Nitrate-Nitrite | Yes | Jul 1, 2021 |
| Nitrate-Nitrite | Yes | Jul 1, 2021 |
| Nitrate-Nitrite | Yes | Apr 1, 2021 |
| Nitrate-Nitrite | Yes | Apr 1, 2021 |
| Nitrate-Nitrite | Yes | Jan 1, 2021 |
| Nitrate-Nitrite | Yes | Jan 1, 2021 |
| Nitrate-Nitrite | Yes | Oct 1, 2020 |
| Nitrate-Nitrite | Yes | Oct 1, 2020 |
| Nitrate-Nitrite | Yes | Jul 1, 2020 |
| Nitrate-Nitrite | Yes | Jul 1, 2020 |
| Nitrate-Nitrite | Yes | Jan 1, 2020 |
| Nitrate-Nitrite | Yes | Jan 1, 2020 |
| Nitrate-Nitrite | Yes | Oct 1, 2019 |
| Nitrate-Nitrite | Yes | Oct 1, 2019 |
| Nitrate-Nitrite | Yes | Jul 1, 2019 |
| Nitrate-Nitrite | Yes | Jul 1, 2019 |
| Nitrate-Nitrite | Yes | Apr 1, 2019 |
| Nitrate-Nitrite | Yes | Apr 1, 2019 |
| Nitrate-Nitrite | Yes | Jan 1, 2019 |
| Nitrate-Nitrite | Yes | Jan 1, 2019 |
| Nitrate-Nitrite | Yes | Oct 1, 2018 |
| Nitrate-Nitrite | Yes | Oct 1, 2018 |
| Nitrate-Nitrite | Yes | Jul 1, 2018 |
| Nitrate-Nitrite | Yes | Jul 1, 2018 |
| Nitrate-Nitrite | Yes | Apr 1, 2018 |
| Nitrate-Nitrite | Yes | Apr 1, 2018 |
| Nitrate-Nitrite | Yes | Jan 1, 2018 |
| Nitrate-Nitrite | Yes | Jan 1, 2018 |
| Nitrate-Nitrite | Yes | Oct 1, 2017 |
| Nitrate-Nitrite | Yes | Oct 1, 2017 |
| Nitrate-Nitrite | Yes | Jul 1, 2017 |
| Nitrate-Nitrite | Yes | Jul 1, 2017 |
| Nitrate-Nitrite | Yes | Apr 1, 2017 |
| Nitrate-Nitrite | Yes | Jan 1, 2017 |
| Nitrate-Nitrite | Yes | Jan 1, 2017 |
| Nitrate-Nitrite | Yes | Oct 1, 2016 |
| Nitrate-Nitrite | Yes | Oct 1, 2016 |
| Nitrate-Nitrite | Yes | Jul 1, 2016 |
| Nitrate-Nitrite | Yes | Jul 1, 2016 |
| Nitrate-Nitrite | Yes | Apr 1, 2016 |
| Nitrate-Nitrite | Yes | Apr 1, 2016 |
| Nitrate-Nitrite | Yes | Jan 1, 2016 |
| Nitrate-Nitrite | Yes | Jan 1, 2016 |
| Nitrate-Nitrite | Yes | Apr 1, 2006 |
| Nitrate-Nitrite | Yes | Apr 1, 2006 |
| Nitrate-Nitrite | Yes | Jan 1, 2006 |
| Nitrate-Nitrite | Yes | Jan 1, 2006 |
| Nitrate-Nitrite | Yes | Oct 1, 2005 |
| Nitrate-Nitrite | Yes | Oct 1, 2005 |
| Nitrate-Nitrite | Yes | Jul 1, 2005 |
| Nitrate-Nitrite | Yes | Jul 1, 2005 |
| Nitrate-Nitrite | Yes | Apr 1, 2005 |
| Nitrate-Nitrite | Yes | Apr 1, 2005 |
| Nitrate-Nitrite | Yes | Jan 1, 2005 |
| Nitrate-Nitrite | Yes | Jan 1, 2005 |
Frequently Asked Questions
What does EPA SDWIS list for CANADIAN CO RWD # 1?
How many people does CANADIAN CO RWD # 1 serve?
What violations does CANADIAN CO RWD # 1 have?
What contaminants have been found in CANADIAN CO RWD # 1 water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest CANADIAN CO RWD # 1 on cumulative violation count (129) and EPA-reported population served (750). Violation-count peers include BUCKLAND WATER SYSTEM, VILLAGE OF CLAYTON WATER SYSTEM, SOUTH DESOTO WATER SYSTEM. Population peers include GRAY ROCK WATER ASSOCIATION, NORMAN WATERWORKS, ROSSTON WATER DEPARTMENT.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
Explore More
About This Data
CANADIAN CO RWD # 1 (OK2000908) is drawn from EPA SDWIS. Nearby county systems in this extract include YUKON; MUSTANG, CITY OF; EL RENO; PIEDMONT MUNICIPAL AUTHORITY. Health-based rows (129 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.