DEWAR
PWSID: OK3005613 · Dewar, OK · Serves 917 people
According to EPA Safe Drinking Water Information System (SDWIS), DEWAR (PWSID OK3005613) in Dewar, OK is listed as a CWS water system covering about 917 people. The same extract lists 35 health-based violation records spanning 1997-2025. Those 35 health-based rows for DEWAR 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.
DEWAR has 35 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 TTHM, Total Haloacetic Acids (HAA5), LEAD AND COPPER RULE REVISIONS. Recorded violations span 1997–2025. 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)
- OK3005613
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Dewar, OK
- Population Served
- 917
- Health Violations
- Yes (35)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 18 | 18 |
| Total Haloacetic Acids (HAA5) | 15 | 15 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
| Coliform (TCR) | 1 | 1 |
Violation History (35)
| Contaminant | Health | Date |
|---|---|---|
| TTHM | Yes | Oct 1, 2025 |
| TTHM | Yes | Oct 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2022 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2022 |
| TTHM | Yes | Jul 1, 2022 |
| TTHM | Yes | Jul 1, 2022 |
| TTHM | Yes | Jul 1, 2022 |
| TTHM | Yes | Jul 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 |
| 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 | 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 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2021 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2021 |
| TTHM | Yes | Apr 1, 2019 |
| TTHM | Yes | Jan 1, 2019 |
| TTHM | Yes | Oct 1, 2018 |
| TTHM | Yes | Jul 1, 2015 |
| TTHM | Yes | Jan 1, 2015 |
| Coliform (TCR) | Yes | Jul 1, 1997 |
Frequently Asked Questions
What does EPA SDWIS list for DEWAR?
How many people does DEWAR serve?
What violations does DEWAR have?
What contaminants have been found in DEWAR water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest DEWAR on cumulative violation count (35) and EPA-reported population served (917). Violation-count peers include Hopi High School - BIA, QUINHAGAK WATER SYSTEM, DEER WATER ASSOCIATION. Population peers include HIGHLAND, CITY OF, SENECA WSC, LAKE CUSHMAN SYSTEM 3.
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
DEWAR (OK3005613) is drawn from EPA SDWIS. Nearby county systems in this extract include OKMULGEE PWA; OKMULGEE CO. RWD #6 (HECTORVILLE); HENRYETTA MUNICIPAL AUTHORITY; OKMULGEE CO. RWD #20. Health-based rows (35 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.