What was found in Harker 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 |
|---|---|---|---|
| Chlorite | 665 µg/L 67% of the EPA limit 1000 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Nitrate | 652.5 µg/L 6.5% of the EPA limit 10000 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Fluoride | 317 µg/L 7.9% of the EPA limit 4000 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Cyanide | 180 µg/L 90% of the EPA limit 200 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Copper | 127.5 µg/L 9.8% of the EPA limit 1300 µg/L Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019 | 2/2 | SYR4 |
| TTHM | 53.52 µg/L 67% of the EPA limit 80 µg/L Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019
Highest in the city: 80.4 µg/L — CENTRAL TEXAS WSC · 0 people · 2019 | 2/2 | SYR4 |
| Barium | 54.32 µg/L 2.7% of the EPA limit 2000 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 32.34 µg/L 54% of the EPA limit 60 µg/L Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019 | 2/2 | SYR4 |
| Chloroform | 27.56 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 12.68 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019
Highest in the city: 27.06 µg/L — CENTRAL TEXAS WSC · 0 people · 2019 | 2/2 | SYR4 |
| Bromoform | 4.135 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019
Highest in the city: 24.14 µg/L — CENTRAL TEXAS WSC · 0 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 20.8 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 19.12 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 5.91 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019
Highest in the city: 10.255 µg/L — CENTRAL TEXAS WSC · 0 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 9.325 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019 | 2/2 | SYR4 |
| Chromium | 5.8625 µg/L 5.9% of the EPA limit 100 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 4.675 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019 | 2/2 | SYR4 |
| Lead | 3.6775 µg/L 25% of the EPA limit 15 µg/L Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.29 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2019
Highest in the city: 2.555 µg/L — CENTRAL TEXAS WSC · 0 people · 2019 | 2/2 | SYR4 |
| Arsenic | 1.11585 µg/L 11% of the EPA limit 10 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 0.7000 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.2360 µg/L 7.9% of the EPA limit 3 µg/L Highest in the city: CENTRAL TEXAS WSC · 0 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0080 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2024 | 1/2 | UCMR-5 |
| PFHXS | 0.0048 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0034 µg/L No EPA limit set Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF HARKER HEIGHTS · 35,957 people · 2025 | 1/2 | 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 Harker Heights
| Supplier | Population served |
|---|---|
| CITY OF HARKER HEIGHTS | 35,957 |
| CENTRAL TEXAS WSC | 0 |
Frequently asked questions about Harker Heights tap water
Is Harker Heights tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Harker 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 Harker Heights?
2 public water suppliers report drinking-water monitoring for Harker Heights, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Harker Heights's water?
The contaminants EPA monitoring detected in Harker Heights include Chlorite, Nitrate, Fluoride, Cyanide, 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.