What was found in Grove's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 950 µg/L 9.5% of the EPA limit 10000 µg/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019
Highest in the city: 5160 µg/L — LAKEWOOD VILLAGE · 293 people · 2019 | 2/4 | SYR4 |
| Fluoride | 130 µg/L 3.3% of the EPA limit 4000 µg/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2015
Highest in the city: 1460 µg/L — HICKORY MEADOWS · 157 people · 2014 | 3/4 | SYR4 |
| Copper | 1092 µg/L 84% of the EPA limit 1300 µg/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2017 | 4/4 | SYR4 |
| Lead | 96.3 µg/L 642% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2017 | 3/4 | SYR4 |
| TTHM | 83.46 µg/L 104% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 4/4 | SYR4 |
| Chloroform | 65.265 µg/L No EPA limit set Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 3/4 | SYR4 |
| Barium | 53 µg/L 2.7% of the EPA limit 2000 µg/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2015
Highest in the city: 57.82 µg/L — LAKEWOOD VILLAGE · 293 people · 2018 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 56.64 µg/L 94% of the EPA limit 60 µg/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 3/4 | SYR4 |
| Trichloroacetic Acid | 28.96 µg/L No EPA limit set Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 2/4 | SYR4 |
| Dichloroacetic Acid | 27.2 µg/L No EPA limit set Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 1/4 | SYR4 |
| Selenium | 19.43 µg/L 39% of the EPA limit 50 µg/L Highest in the city: LAKEWOOD VILLAGE · 293 people · 2018 | 1/4 | SYR4 |
| Bromodichloromethane | 16.9 µg/L No EPA limit set Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.98235 pCi/L 20% of the EPA limit 15 pCi/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2015
Highest in the city: 10.0995 pCi/L — HOLIDAY SHORES PROP ASSN · 136 people · 2015 | 4/4 | SYR4 |
| Gross Beta Particle Activity | 3.552 pCi/L No EPA limit set Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2015
Highest in the city: 8.513 pCi/L — HOLIDAY SHORES PROP ASSN · 136 people · 2015 | 4/4 | SYR4 |
| Monochloroacetic Acid | 4.95 µg/L No EPA limit set Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 1/4 | SYR4 |
| Arsenic | 4.305 µg/L 43% of the EPA limit 10 µg/L Highest in the city: LAKEWOOD VILLAGE · 293 people · 2015 | 1/4 | SYR4 |
| Dibromochloromethane | 4.128 µg/L No EPA limit set Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 4/4 | SYR4 |
| Bromoform | 3.971 µg/L No EPA limit set Highest in the city: HICKORY MEADOWS · 157 people · 2017 | 3/4 | SYR4 |
| Combined Uranium | 2.88 µg/L 9.6% of the EPA limit 30 µg/L Highest in the city: LAKEWOOD VILLAGE · 293 people · 2015 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.1460 pCi/L 2.9% of the EPA limit 5 pCi/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2015
Highest in the city: 2.1795 pCi/L — HOLIDAY SHORES PROP ASSN · 136 people · 2015 | 4/4 | SYR4 |
| Dibromoacetic Acid | 1.555 µg/L No EPA limit set Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2019 | 3/4 | SYR4 |
| Lead | 0.0093 mg/L 62% of the EPA limit 0.0150 mg/L Main supplier: GROVE MUNICIPAL SERVICES AUTH. · 7,311 people · 2023 | 4/4 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Grove
| Supplier | Population served |
|---|---|
| GROVE MUNICIPAL SERVICES AUTH. | 7,311 |
| LAKEWOOD VILLAGE | 293 |
| HICKORY MEADOWS | 157 |
| HOLIDAY SHORES PROP ASSN | 136 |
Frequently asked questions about Grove tap water
Is Grove tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Grove. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Grove?
4 public water suppliers report drinking-water monitoring for Grove, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Grove's water?
The contaminants EPA monitoring detected in Grove include Nitrate-Nitrite, Fluoride, Copper, Lead, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.