What was found in Glenn Heights'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 |
|---|---|---|---|
| Fluoride | 1380 µg/L 35% of the EPA limit 4000 µg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2014
Highest in the city: 2820 µg/L — COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2019 | 2/2 | SYR4 |
| Nitrite | 19.5 µg/L 2% of the EPA limit 1000 µg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2015
Highest in the city: 963 µg/L — COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 477.5 µg/L 4.8% of the EPA limit 10000 µg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2015
Highest in the city: 957.3 µg/L — COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2018 | 2/2 | SYR4 |
| Nitrate | 769.3999999999999 µg/L 7.7% of the EPA limit 10000 µg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 2/2 | SYR4 |
| Copper | 324 µg/L 25% of the EPA limit 1300 µg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 2/2 | SYR4 |
| Lead | 3.9955000000000003 µg/L 27% of the EPA limit 15 µg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019
Highest in the city: 27.725999999999974 µg/L — COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2018 | 2/2 | SYR4 |
| TTHM | 20.799999999999997 µg/L 26% of the EPA limit 80 µg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 17.154999999999998 µg/L 29% of the EPA limit 60 µg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 13.774999999999995 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 2/2 | SYR4 |
| Chloroform | 11.339999999999986 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 8.219999999999994 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 6.8 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 1/2 | SYR4 |
| Barium | 6.355 µg/L 0.3% of the EPA limit 2000 µg/L Highest in the city: COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2018 | 1/2 | SYR4 |
| Dibromochloromethane | 5.996999999999999 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019
Highest in the city: 6.1 µg/L — COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2019 | 2/2 | SYR4 |
| Cyanide | 5.07 µg/L 2.5% of the EPA limit 200 µg/L Highest in the city: COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2018 | 1/2 | SYR4 |
| Bromoform | 3.414999999999989 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019
Highest in the city: 4.2 µg/L — COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.8 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 2.75 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019 | 1/2 | SYR4 |
| Chromium | 2.7299999999999995 µg/L 2.7% of the EPA limit 100 µg/L Highest in the city: COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2018 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.5 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2019
Highest in the city: 1.7 µg/L — COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.475 pCi/L 30% of the EPA limit 5 pCi/L Highest in the city: COTTONWOOD CREEK MOBILE HOME PARK · 225 people · 2018 | 1/2 | SYR4 |
| Pfba | 0.0098 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2024 | 1/2 | UCMR-5 |
| Pfpea | 0.0058 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2024 | 1/2 | UCMR-5 |
| Pfhxa | 0.0053 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0044 µg/L No EPA limit set Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF GLENN HEIGHTS · 18,718 people · 2025 | 2/2 | 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 Glenn Heights
| Supplier | Population served |
|---|---|
| CITY OF GLENN HEIGHTS | 18,718 |
| COTTONWOOD CREEK MOBILE HOME PARK | 225 |
Frequently asked questions about Glenn Heights tap water
Is Glenn Heights tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Glenn Heights. 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 Glenn Heights?
2 public water suppliers report drinking-water monitoring for Glenn Heights, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Glenn Heights's water?
The contaminants EPA monitoring detected in Glenn Heights include Fluoride, Nitrite, Nitrate-Nitrite, Nitrate, Copper. 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.