What was found in River Oaks'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 |
|---|---|---|---|
| Copper | 607 µg/L 47% of the EPA limit 1300 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Nitrate | 240 µg/L 2.4% of the EPA limit 10000 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Fluoride | 184.4 µg/L 4.6% of the EPA limit 4000 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| TTHM | 140.4 µg/L 176% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 120.2 µg/L 200% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Cyanide | 98.425 µg/L 49% of the EPA limit 200 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Chloroform | 91.46 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Barium | 91.2 µg/L 4.6% of the EPA limit 2000 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 54.46 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 52.85 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 44.84 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 20.99 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 15.275 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Lead | 6.255 µg/L 42% of the EPA limit 15 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 6.05 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Selenium | 4.65 µg/L 9.3% of the EPA limit 50 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 4.6 pCi/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2016 | 1/1 | SYR4 |
| Chromium | 3.868 µg/L 3.9% of the EPA limit 100 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Bromoform | 3.438 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.94 µg/L No EPA limit set Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Arsenic | 1.4829 µg/L 15% of the EPA limit 10 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 0.2800 µg/L 4.7% of the EPA limit 6 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 0.2250 µg/L 11% of the EPA limit 2 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Simazine | 0.0700 µg/L 1.8% of the EPA limit 4 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Heptachlor Epoxide | 0.0400 µg/L 20% of the EPA limit 0.2000 µg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0015 mg/L 9.7% of the EPA limit 0.0150 mg/L Main supplier: CITY OF RIVER OAKS · 7,691 people · 2026 | 1/1 | 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 River Oaks
| Supplier | Population served |
|---|---|
| CITY OF RIVER OAKS | 7,691 |
Frequently asked questions about River Oaks tap water
Is River Oaks tap water safe to drink?
EPA testing detected 27 contaminants in the water serving River Oaks. 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 River Oaks?
1 public water supplier report drinking-water monitoring for River Oaks, Texas to the EPA. Each is listed above with its population served.
What contaminants are in River Oaks's water?
The contaminants EPA monitoring detected in River Oaks include Copper, Nitrate, Fluoride, TTHM, Total Haloacetic Acids (HAA5). 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.