What was found in ZIP 78644
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 2876 µg/L 72% of the EPA limit 4000 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2017 | 3/3 | SYR4 |
| Nitrate | 2040 µg/L 20% of the EPA limit 10000 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 1918 µg/L 19% of the EPA limit 10000 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2015 | 3/3 | SYR4 |
| Copper | 618.1 µg/L 48% of the EPA limit 1300 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2017 | 3/3 | SYR4 |
| Nitrite | 74.8 µg/L 7.5% of the EPA limit 1000 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2015
Highest in the ZIP: 145 µg/L — CREEDMOOR MAHA WSC · 8,907 people · 2015 | 2/3 | SYR4 |
| Barium | 133.5 µg/L 6.7% of the EPA limit 2000 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2019 | 3/3 | SYR4 |
| Cyanide | 49 µg/L 25% of the EPA limit 200 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2017
Highest in the ZIP: 80 µg/L — CITY OF LOCKHART · 18,800 people · 2017 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 29.55999999999998 µg/L 49% of the EPA limit 60 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2019
Highest in the ZIP: 67.5 µg/L — CITY OF LOCKHART · 18,800 people · 2019 | 3/3 | SYR4 |
| Lithium | 14.2 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2024
Highest in the ZIP: 65.5 µg/L — CREEDMOOR MAHA WSC · 8,907 people · 2024 | 3/3 | UCMR-5 |
| TTHM | 59.93999999999999 µg/L 75% of the EPA limit 80 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 12.434999999999983 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019
Highest in the ZIP: 32.8 µg/L — CITY OF LOCKHART · 18,800 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 14.100000000000001 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019
Highest in the ZIP: 31.50999999999999 µg/L — CITY OF LOCKHART · 18,800 people · 2019 | 3/3 | SYR4 |
| Chloroform | 27.439999999999998 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019
Highest in the ZIP: 31.5 µg/L — CITY OF LOCKHART · 18,800 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 20.674999999999997 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 17.1 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019 | 3/3 | SYR4 |
| Selenium | 10.1 µg/L 20% of the EPA limit 50 µg/L Highest in the ZIP: CITY OF LOCKHART · 18,800 people · 2019 | 1/3 | SYR4 |
| Bromoform | 7.549999999999999 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019
Highest in the ZIP: 8.174999999999999 µg/L — CITY OF LOCKHART · 18,800 people · 2019 | 3/3 | SYR4 |
| Lead | 8.16199999999999 µg/L 54% of the EPA limit 15 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2017 | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.459999999999999 pCi/L 50% of the EPA limit 15 pCi/L Main supplier: GOFORTH SUD · 34,893 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 5 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019
Highest in the ZIP: 5.114999999999998 µg/L — CITY OF LOCKHART · 18,800 people · 2019 | 3/3 | SYR4 |
| Gross Beta Particle Activity | 4.2 pCi/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019
Highest in the ZIP: 4.6 pCi/L — CITY OF LOCKHART · 18,800 people · 2017 | 2/3 | SYR4 |
| Monochloroacetic Acid | 4.35 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019 | 3/3 | SYR4 |
| Arsenic | 3.2 µg/L 32% of the EPA limit 10 µg/L Highest in the ZIP: CITY OF LOCKHART · 18,800 people · 2019 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 2.185 pCi/L 44% of the EPA limit 5 pCi/L Main supplier: GOFORTH SUD · 34,893 people · 2019 | 2/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.9 µg/L 32% of the EPA limit 6 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 1.4549999999999998 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2019 | 2/3 | SYR4 |
| Xylenes, Total | 1.4 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: CREEDMOOR MAHA WSC · 8,907 people · 2019 | 1/3 | SYR4 |
| Dalapon | 1.0950000000000002 µg/L 0.5% of the EPA limit 200 µg/L Main supplier: GOFORTH SUD · 34,893 people · 2019 | 1/3 | SYR4 |
| Ethylbenzene | 0.7000 µg/L 0.1% of the EPA limit 700 µg/L Highest in the ZIP: CREEDMOOR MAHA WSC · 8,907 people · 2019 | 1/3 | SYR4 |
| 6:2 Fts | 0.0156 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2024 | 1/3 | UCMR-5 |
| PFBS | 0.0072 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2024 | 2/3 | UCMR-5 |
| Pfba | 0.0062 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2024
Highest in the ZIP: 0.0068 µg/L — CREEDMOOR MAHA WSC · 8,907 people · 2024 | 2/3 | UCMR-5 |
| PFHXS | 0.0067 µg/L No EPA limit set Highest in the ZIP: CREEDMOOR MAHA WSC · 8,907 people · 2024 | 1/3 | UCMR-5 |
| Pfpea | 0.0051 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2024 | 2/3 | UCMR-5 |
| Pfhxa | 0.0041 µg/L No EPA limit set Main supplier: GOFORTH SUD · 34,893 people · 2024 | 2/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: GOFORTH SUD · 34,893 people · 2023
Highest in the ZIP: 0.0016 mg/L — CITY OF LOCKHART · 18,800 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.
Water suppliers serving ZIP 78644
| Supplier | State | Population served |
|---|---|---|
| GOFORTH SUD | TX | 34,893 |
| CITY OF LOCKHART | TX | 18,800 |
| CREEDMOOR MAHA WSC | TX | 8,907 |
Frequently asked questions about ZIP 78644 tap water
Is the tap water in ZIP 78644 safe to drink?
EPA testing detected 36 contaminants across the water suppliers serving ZIP 78644. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 78644?
3 public water suppliers report EPA drinking-water monitoring for ZIP 78644. Each is listed above with its population served.
What contaminants are in ZIP 78644's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Copper, Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.