SOUTHERN OKLA WATER CORP
PWSID: OK1010830 · Ardmore, OK · Serves 11,250 people
According to EPA Safe Drinking Water Information System (SDWIS), SOUTHERN OKLA WATER CORP (PWSID OK1010830) in Ardmore, OK is listed as a CWS water system covering about 11,250 people. The same extract lists 188 health-based violation records spanning 1986-2025. Those 188 health-based rows for SOUTHERN OKLA WATER CORP cover contaminants such as TTHM, Total Haloacetic Acids (HAA5), Interim Enhanced Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
SOUTHERN OKLA WATER CORP has 188 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. 9 distinct EPA contaminant codes appear in this system's record, including TTHM, Total Haloacetic Acids (HAA5), Interim Enhanced Surface Water Treatment Rule. Recorded violations span 1986–2025. 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)
- OK1010830
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Ardmore, OK
- Population Served
- 11,250
- Health Violations
- Yes (188)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 120 | 120 |
| Total Haloacetic Acids (HAA5) | 45 | 45 |
| Interim Enhanced Surface Water Treatment Rule | 9 | 9 |
| CARBON, TOTAL | 6 | 6 |
| Coliform (TCR) | 3 | 3 |
| Coliform (Pre-TCR) | 2 | 2 |
| Surface Water Treatment Rule | 1 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
| Turbidity | 1 | 1 |
Violation History (188)
| Contaminant | Health | Date |
|---|---|---|
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| TTHM | Yes | Jul 1, 2025 |
| TTHM | Yes | Jul 1, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Yes | May 1, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Yes | May 1, 2025 |
| TTHM | Yes | Apr 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Oct 1, 2022 |
| TTHM | Yes | Oct 1, 2022 |
| TTHM | Yes | Oct 1, 2022 |
| TTHM | Yes | Oct 1, 2022 |
| TTHM | Yes | Jul 1, 2022 |
| TTHM | Yes | Jul 1, 2022 |
| TTHM | Yes | Jul 1, 2022 |
| TTHM | Yes | Jul 1, 2022 |
| TTHM | Yes | Apr 1, 2022 |
| TTHM | Yes | Apr 1, 2022 |
| TTHM | Yes | Apr 1, 2022 |
| TTHM | Yes | Apr 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2021 |
| TTHM | Yes | Oct 1, 2021 |
| TTHM | Yes | Oct 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2021 |
| TTHM | Yes | Jul 1, 2021 |
| TTHM | Yes | Jul 1, 2021 |
| CARBON, TOTAL | Yes | Jul 1, 2021 |
| CARBON, TOTAL | Yes | Jul 1, 2021 |
| CARBON, TOTAL | Yes | Jul 1, 2021 |
| TTHM | Yes | Apr 1, 2021 |
| TTHM | Yes | Apr 1, 2021 |
| TTHM | Yes | Jan 1, 2021 |
| TTHM | Yes | Jan 1, 2021 |
Frequently Asked Questions
What does EPA SDWIS list for SOUTHERN OKLA WATER CORP?
How many people does SOUTHERN OKLA WATER CORP serve?
What violations does SOUTHERN OKLA WATER CORP have?
What contaminants have been found in SOUTHERN OKLA WATER CORP water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest SOUTHERN OKLA WATER CORP on cumulative violation count (188) and EPA-reported population served (11,250). Violation-count peers include Shungopavi, CITY OF WOLFFORTH, CITY OF HUXLEY. Population peers include THOMAS HILL PWSD 1, NJ AMERICAN WATER - LITTLE FALLS, SUGAR GROVE.
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
SOUTHERN OKLA WATER CORP (OK1010830) is drawn from EPA SDWIS. Nearby county systems in this extract include LONE GROVE; HEALDTON; WESTERN CARTER CO WATER CORP; WILSON MUNICIPAL AUTHORITY. Health-based rows (188 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.