INDIANOLA RWD #18
PWSID: OK3006110 · Indianola, OK · Serves 2,000 people
According to EPA Safe Drinking Water Information System (SDWIS), INDIANOLA RWD #18 (PWSID OK3006110) in Indianola, OK is listed as a CWS water system covering about 2,000 people. The same extract lists 8 health-based violation records spanning 1987-2025. Those 8 health-based rows for INDIANOLA RWD #18 cover contaminants such as TTHM, Coliform (Pre-TCR), LEAD AND COPPER RULE REVISIONS; they remain historical EPA registry entries, not a current compliance or drinkability score.
INDIANOLA RWD #18 has 8 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, Coliform (Pre-TCR), LEAD AND COPPER RULE REVISIONS. Recorded violations span 1987–2025. 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)
- OK3006110
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Indianola, OK
- Population Served
- 2,000
- Health Violations
- Yes (8)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 4 | 4 |
| Coliform (Pre-TCR) | 3 | 3 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
Violation History (8)
| Contaminant | Health | Date |
|---|---|---|
| TTHM | Yes | Oct 1, 2025 |
| TTHM | Yes | Oct 1, 2025 |
| TTHM | Yes | Jul 1, 2025 |
| TTHM | Yes | Jul 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Coliform (Pre-TCR) | Yes | Apr 1, 1989 |
| Coliform (Pre-TCR) | Yes | Aug 1, 1988 |
| Coliform (Pre-TCR) | Yes | Aug 1, 1987 |
Frequently Asked Questions
What does EPA SDWIS list for INDIANOLA RWD #18?
How many people does INDIANOLA RWD #18 serve?
What violations does INDIANOLA RWD #18 have?
What contaminants have been found in INDIANOLA RWD #18 water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest INDIANOLA RWD #18 on cumulative violation count (8) and EPA-reported population served (2,000). Violation-count peers include Mashantucket Pequot Water System, San Ildefonso Pueblo, TOWAOC WATER SYSTEM. Population peers include ROCKY BOY'S RURAL WATER, ADC - TUCKER UNIT MAINT, DIAMOND VALLEY WATER DISTRICT.
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
INDIANOLA RWD #18 (OK3006110) is drawn from EPA SDWIS. Nearby county systems in this extract include MCALESTER PWA; ADAMSON RWD #8; HARTSHORNE; PITTSBURG CO. PWA (CROWDER). Health-based rows (8 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.