What was found in ZIP 78150
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 | 1356 µg/L 34% of the EPA limit 4000 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 7308 µg/L — JBSA RANDOLPH · 10,949 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 2203 µg/L 22% of the EPA limit 10000 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2015 | 2/2 | SYR4 |
| Nitrate | 2159 µg/L 22% of the EPA limit 10000 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019 | 2/2 | SYR4 |
| Copper | 213 µg/L 16% of the EPA limit 1300 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 1487 µg/L — JBSA RANDOLPH · 10,949 people · 2019 | 2/2 | SYR4 |
| Chlorite | 939 µg/L 94% of the EPA limit 1000 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019 | 1/2 | SYR4 |
| Barium | 108.34 µg/L 5.4% of the EPA limit 2000 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 142.25 µg/L — JBSA RANDOLPH · 10,949 people · 2017 | 2/2 | SYR4 |
| Lead | 59.5 µg/L 397% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019 | 2/2 | SYR4 |
| Lithium | 9.5 µg/L No EPA limit set Main supplier: JBSA SAM HOUSTON · 37,563 people · 2023
Highest in the ZIP: 26 µg/L — JBSA RANDOLPH · 10,949 people · 2025 | 2/2 | UCMR-5 |
| TTHM | 8.96 µg/L 11% of the EPA limit 80 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 14.48 µg/L — JBSA RANDOLPH · 10,949 people · 2019 | 2/2 | SYR4 |
| Chloroform | 7.41 µg/L No EPA limit set Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019 | 2/2 | SYR4 |
| Bromoform | 3.15 µg/L No EPA limit set Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 6.94 µg/L — JBSA RANDOLPH · 10,949 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 5.84 µg/L No EPA limit set Highest in the ZIP: JBSA RANDOLPH · 10,949 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 3.52 µg/L No EPA limit set Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 5.3 µg/L — JBSA RANDOLPH · 10,949 people · 2019 | 2/2 | SYR4 |
| Selenium | 4.3 µg/L 8.6% of the EPA limit 50 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 3.69 µg/L No EPA limit set Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.5 pCi/L 23% of the EPA limit 15 pCi/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 3.685 pCi/L — JBSA RANDOLPH · 10,949 people · 2017 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 3.37 pCi/L 67% of the EPA limit 5 pCi/L Highest in the ZIP: JBSA RANDOLPH · 10,949 people · 2017 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 2.025 µg/L 3.4% of the EPA limit 60 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 2.8 µg/L — JBSA RANDOLPH · 10,949 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 2.095 µg/L No EPA limit set Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 2.7 µg/L — JBSA RANDOLPH · 10,949 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.675 µg/L No EPA limit set Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019
Highest in the ZIP: 2.6 µg/L — JBSA RANDOLPH · 10,949 people · 2019 | 2/2 | SYR4 |
| Arsenic | 2.1 µg/L 21% of the EPA limit 10 µg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 1.2 µg/L No EPA limit set Highest in the ZIP: JBSA RANDOLPH · 10,949 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.9000 µg/L 15% of the EPA limit 6 µg/L Highest in the ZIP: JBSA RANDOLPH · 10,949 people · 2018 | 1/2 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: JBSA SAM HOUSTON · 37,563 people · 2025
Highest in the ZIP: 0.0020 mg/L — JBSA RANDOLPH · 10,949 people · 2024 | 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.
Water suppliers serving ZIP 78150
| Supplier | State | Population served |
|---|---|---|
| JBSA SAM HOUSTON | TX | 37,563 |
| JBSA RANDOLPH | TX | 10,949 |
Frequently asked questions about ZIP 78150 tap water
Is the tap water in ZIP 78150 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 78150. 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 78150?
2 public water suppliers report EPA drinking-water monitoring for ZIP 78150. Each is listed above with its population served.
What contaminants are in ZIP 78150's water?
EPA monitoring detected Fluoride, Nitrate-Nitrite, Nitrate, Copper, Chlorite, and others across this ZIP's suppliers. The full list with levels and sources is above.