What was found in Gilbert'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 | 2230 µg/L 22% of the EPA limit 10000 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 4910 µg/L — WEST WINNSBORO WATER SYSTEM · 3,078 people · 2019 | 2/3 | SYR4 |
| Nitrate | 4800 µg/L 48% of the EPA limit 10000 µg/L Highest in the city: WEST WINNSBORO WATER SYSTEM · 3,078 people · 2019 | 1/3 | SYR4 |
| Copper | 500 µg/L 38% of the EPA limit 1300 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 900 µg/L — WEST WINNSBORO WATER SYSTEM · 3,078 people · 2019 | 3/3 | SYR4 |
| Fluoride | 325 µg/L 8.1% of the EPA limit 4000 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018 | 2/3 | SYR4 |
| Barium | 28.7 µg/L 1.4% of the EPA limit 2000 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018
Highest in the city: 43.45 µg/L — WEST WINNSBORO WATER SYSTEM · 3,078 people · 2017 | 2/3 | SYR4 |
| Glyphosate | 33.4 µg/L 4.8% of the EPA limit 700 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018 | 1/3 | SYR4 |
| TTHM | 5.077 µg/L 6.3% of the EPA limit 80 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 22.699 µg/L — GILBERT WATER SYSTEM · 915 people · 2019 | 3/3 | SYR4 |
| Lead | 9.15 µg/L 61% of the EPA limit 15 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 8.3 µg/L No EPA limit set Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 7.65 µg/L 13% of the EPA limit 60 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 7.66 µg/L — GILBERT WATER SYSTEM · 915 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 5.0775 µg/L No EPA limit set Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 7.4 µg/L — GILBERT WATER SYSTEM · 915 people · 2019 | 3/3 | SYR4 |
| Bromoform | 0.3900 µg/L No EPA limit set Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 6.7695 µg/L — GILBERT WATER SYSTEM · 915 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 1.685 µg/L No EPA limit set Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 5.832 µg/L — GILBERT WATER SYSTEM · 915 people · 2019 | 3/3 | SYR4 |
| Chloroform | 1.28 µg/L No EPA limit set Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 4.882 µg/L — GILBERT WATER SYSTEM · 915 people · 2019 | 3/3 | SYR4 |
| Chromium | 4.69 µg/L 4.7% of the EPA limit 100 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018 | 1/3 | SYR4 |
| Dichloroacetic Acid | 1.57 µg/L No EPA limit set Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 4.46 µg/L — GILBERT WATER SYSTEM · 915 people · 2019 | 3/3 | SYR4 |
| Selenium | 2.5005 µg/L 5% of the EPA limit 50 µg/L Highest in the city: WEST WINNSBORO WATER SYSTEM · 3,078 people · 2017 | 1/3 | SYR4 |
| Dibromoacetic Acid | 0.7500 µg/L No EPA limit set Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2019
Highest in the city: 2.26 µg/L — GILBERT WATER SYSTEM · 915 people · 2019 | 3/3 | SYR4 |
| Arsenic | 2.01 µg/L 20% of the EPA limit 10 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018 | 2/3 | SYR4 |
| Trichloroacetic Acid | 1.081 µg/L No EPA limit set Highest in the city: GILBERT WATER SYSTEM · 915 people · 2019 | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7020 µg/L 12% of the EPA limit 6 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.6770 pCi/L 14% of the EPA limit 5 pCi/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018 | 1/3 | SYR4 |
| Toluene | 0.3600 µg/L 0% of the EPA limit 1000 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018 | 1/3 | SYR4 |
| Picloram | 0.0970 µg/L 0% of the EPA limit 500 µg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2018 | 1/3 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: TURKEY CREEK WATER SYSTEM · 3,429 people · 2025 | 3/3 | 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 Gilbert
| Supplier | Population served |
|---|---|
| TURKEY CREEK WATER SYSTEM | 3,429 |
| WEST WINNSBORO WATER SYSTEM | 3,078 |
| GILBERT WATER SYSTEM | 915 |
Frequently asked questions about Gilbert tap water
Is Gilbert tap water safe to drink?
EPA testing detected 25 contaminants in the water serving Gilbert. 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 Gilbert?
3 public water suppliers report drinking-water monitoring for Gilbert, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Gilbert's water?
The contaminants EPA monitoring detected in Gilbert include Nitrate-Nitrite, Nitrate, Copper, Fluoride, Barium. 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.