Locust Grove Water Quality
Oklahoma
According to EPA SDWIS, Locust Grove, Oklahoma is served by 4 community water systems covering about 5,031 people. The same extract lists 55 health-based violation records, most recently coded 2950 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Locust Grove, Oklahoma is delivered through 4 EPA-regulated community water systems serving an estimated 5,031 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 55 violation records across the 4 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 7 distinct EPA contaminant codes: TTHM, LEAD AND COPPER RULE REVISIONS, Interim Enhanced Surface Water Treatment Rule, CARBON, TOTAL, Total Haloacetic Acids (HAA5) and 2 others.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Oklahoma drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| MAYES CO RWD # 9 | 2,578 | 5 | Health |
| LOCUST GROVE PWA | 1,600 | 43 | Health |
| MAYES CO RWD # 7 | 538 | 6 | Health |
| CEDAR CREST COUNTRY CLUB | 315 | 1 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| LOCUST GROVE PWA | TTHM | 2025-10-01 |
| LOCUST GROVE PWA | TTHM | 2025-07-01 |
| MAYES CO RWD # 7 | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| MAYES CO RWD # 9 | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| MAYES CO RWD # 9 | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| MAYES CO RWD # 9 | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| MAYES CO RWD # 9 | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| MAYES CO RWD # 9 | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| MAYES CO RWD # 7 | TTHM | 2015-10-01 |
| MAYES CO RWD # 7 | TTHM | 2015-07-01 |
| LOCUST GROVE PWA | TTHM | 2013-01-01 |
| LOCUST GROVE PWA | TTHM | 2012-10-01 |
| LOCUST GROVE PWA | CARBON, TOTAL | 2012-10-01 |
| LOCUST GROVE PWA | TTHM | 2012-07-01 |
| LOCUST GROVE PWA | CARBON, TOTAL | 2012-07-01 |
| LOCUST GROVE PWA | TTHM | 2012-04-01 |
| LOCUST GROVE PWA | CARBON, TOTAL | 2012-04-01 |
| LOCUST GROVE PWA | TTHM | 2012-01-01 |
| LOCUST GROVE PWA | CARBON, TOTAL | 2012-01-01 |
| LOCUST GROVE PWA | Total Haloacetic Acids (HAA5) | 2012-01-01 |
| LOCUST GROVE PWA | TTHM | 2011-10-01 |
| LOCUST GROVE PWA | TTHM | 2011-07-01 |
| LOCUST GROVE PWA | TTHM | 2011-04-01 |
| LOCUST GROVE PWA | TTHM | 2011-01-01 |
| LOCUST GROVE PWA | TTHM | 2010-10-01 |
| LOCUST GROVE PWA | TTHM | 2010-07-01 |
| LOCUST GROVE PWA | TTHM | 2010-04-01 |
| LOCUST GROVE PWA | Total Haloacetic Acids (HAA5) | 2010-04-01 |
| LOCUST GROVE PWA | TTHM | 2010-01-01 |
| LOCUST GROVE PWA | Total Haloacetic Acids (HAA5) | 2010-01-01 |
| LOCUST GROVE PWA | TTHM | 2009-10-01 |
| LOCUST GROVE PWA | Total Haloacetic Acids (HAA5) | 2009-10-01 |
| LOCUST GROVE PWA | CARBON, TOTAL | 2009-07-01 |
| LOCUST GROVE PWA | CARBON, TOTAL | 2009-04-01 |
| LOCUST GROVE PWA | CARBON, TOTAL | 2009-01-01 |
| LOCUST GROVE PWA | TTHM | 2007-10-01 |
| LOCUST GROVE PWA | TTHM | 2007-07-01 |
| LOCUST GROVE PWA | CARBON, TOTAL | 2007-07-01 |
| LOCUST GROVE PWA | TTHM | 2007-04-01 |
| LOCUST GROVE PWA | TTHM | 2007-01-01 |
| LOCUST GROVE PWA | TTHM | 2006-10-01 |
| LOCUST GROVE PWA | TTHM | 2006-07-01 |
| LOCUST GROVE PWA | TTHM | 2006-04-01 |
| LOCUST GROVE PWA | TTHM | 2006-01-01 |
| LOCUST GROVE PWA | TTHM | 2005-10-01 |
| LOCUST GROVE PWA | TTHM | 2005-07-01 |
| LOCUST GROVE PWA | TTHM | 2005-04-01 |
| LOCUST GROVE PWA | TTHM | 2005-01-01 |
| LOCUST GROVE PWA | TTHM | 2004-10-01 |
| LOCUST GROVE PWA | TTHM | 2004-07-01 |
What are Locust Grove's health-based records for?
Locust Grove's health-based violation records carry 7 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Tthm | 32 | 2 |
| Carbon, Total | 8 | 1 |
| Coliform (TCR) | 4 | 3 |
| Interim Enhanced Surface Water Treatment Rule | 4 | 1 |
| Total Haloacetic Acids (HAA5) | 4 | 1 |
| Lead and Copper Rule Revisions | 2 | 2 |
| Coliform (Pre-TCR) | 1 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Locust Grove, Oklahoma? ▼
How many water violations does Locust Grove have in this EPA extract? ▼
What contaminants were found in Locust Grove water? ▼
How many water systems serve Locust Grove? ▼
Where does Locust Grove get its drinking water? ▼
How does Locust Grove compare in Oklahoma?
Of the 482 Oklahoma places with at least one community water system on file, Locust Grove ranks #36 by number of systems (4).
Either side of it: Henryetta (4), Jay (4), Muskogee (4), Noble (4)
About This Data
Figures here are the current EPA SDWIS extract joined to the 4 community water systems whose service area lists Locust Grove, ranked against the 482 Oklahoma places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.