LEFLORE CO. RWD #18
PWSID: OK3004009 · Wister, OK · Serves 3,870 people
According to EPA Safe Drinking Water Information System (SDWIS), LEFLORE CO. RWD #18 (PWSID OK3004009) in Wister, OK is listed as a CWS water system covering about 3,870 people. The same extract lists 48 health-based violation records spanning 2018-2025. Those 48 health-based rows for LEFLORE CO. RWD #18 cover contaminants such as TTHM, Total Haloacetic Acids (HAA5), LEAD AND COPPER RULE REVISIONS; they remain historical EPA registry entries, not a current compliance or drinkability score.
LEFLORE CO. RWD #18 has 48 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. 3 distinct EPA contaminant codes appear in this system's record, including TTHM, Total Haloacetic Acids (HAA5), LEAD AND COPPER RULE REVISIONS. Recorded violations span 2018–2025. 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)
- OK3004009
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Wister, OK
- Population Served
- 3,870
- Health Violations
- Yes (48)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 36 | 36 |
| Total Haloacetic Acids (HAA5) | 11 | 11 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
Violation History (48)
| Contaminant | Health | Date |
|---|---|---|
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| 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 | 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 | 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 |
| TTHM | Yes | Apr 1, 2022 |
| TTHM | Yes | Apr 1, 2020 |
| TTHM | Yes | Apr 1, 2020 |
| TTHM | Yes | Apr 1, 2020 |
| TTHM | Yes | Apr 1, 2020 |
| TTHM | Yes | Apr 1, 2020 |
| TTHM | Yes | Apr 1, 2020 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2020 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2020 |
| TTHM | Yes | Jan 1, 2020 |
| TTHM | Yes | Jan 1, 2020 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2019 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2019 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2019 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2019 |
| TTHM | Yes | Jul 1, 2018 |
| TTHM | Yes | Jul 1, 2018 |
| TTHM | Yes | Apr 1, 2018 |
| TTHM | Yes | Apr 1, 2018 |
Frequently Asked Questions
What does EPA SDWIS list for LEFLORE CO. RWD #18?
How many people does LEFLORE CO. RWD #18 serve?
What violations does LEFLORE CO. RWD #18 have?
What contaminants have been found in LEFLORE CO. RWD #18 water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest LEFLORE CO. RWD #18 on cumulative violation count (48) and EPA-reported population served (3,870). Violation-count peers include SIERRA PACIFIC MOBILE MANOR, CWS - KERNVILLE, BOLINAS COMMUNITY PUD. Population peers include FLIPPIN WATERWORKS, WONDER LAKE, HEGINS HUBLEY AUTHORITY.
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
LEFLORE CO. RWD #18 (OK3004009) is drawn from EPA SDWIS. Nearby county systems in this extract include LEFLORE CO. RWD #14; POTEAU PWA; LEFLORE CO. RWD #2; HEAVENER UTILITY AUTH - PSG. Health-based rows (48 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.