What was found in ZIP 75034
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 |
|---|---|---|---|
| Nitrate | 1241.5 µg/L 12% of the EPA limit 10000 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2019 | 1/4 | SYR4 |
| Nitrate-Nitrite | 1215.5 µg/L 12% of the EPA limit 10000 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2019 | 2/4 | SYR4 |
| Copper | 829.18 µg/L 64% of the EPA limit 1300 µg/L Main supplier: CITY OF FRISCO · 231,910 people · 2017 | 4/4 | SYR4 |
| Fluoride | 733.5 µg/L 18% of the EPA limit 4000 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2018 | 1/4 | SYR4 |
| TTHM | 60.34 µg/L 75% of the EPA limit 80 µg/L Main supplier: CITY OF FRISCO · 231,910 people · 2019
Highest in the ZIP: 122.275 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Chloroform | 17.88 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019
Highest in the ZIP: 94.645 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Barium | 78.1 µg/L 3.9% of the EPA limit 2000 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2019 | 2/4 | SYR4 |
| Lithium | 76.6 µg/L No EPA limit set Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2023 | 1/4 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 29.98 µg/L 50% of the EPA limit 60 µg/L Main supplier: CITY OF FRISCO · 231,910 people · 2019
Highest in the ZIP: 62.71 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Cyanide | 48.14 µg/L 24% of the EPA limit 200 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2017 | 1/4 | SYR4 |
| Trichloroacetic Acid | 5.7 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019
Highest in the ZIP: 36.03 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 17.04 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019
Highest in the ZIP: 30.355 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 26.18 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019 | 4/4 | SYR4 |
| Lead | 5.3655 µg/L 36% of the EPA limit 15 µg/L Main supplier: CITY OF FRISCO · 231,910 people · 2017
Highest in the ZIP: 18.392 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2018 | 4/4 | SYR4 |
| Dibromochloromethane | 15.4 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019 | 4/4 | SYR4 |
| Bromoform | 6.4045 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019
Highest in the ZIP: 9.048 µg/L — CITY OF THE COLONY · 45,367 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 8.6 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 7.32 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019
Highest in the ZIP: 8.368 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 3.9 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2019 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.3 pCi/L 22% of the EPA limit 15 pCi/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2018 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 2.589 pCi/L 52% of the EPA limit 5 pCi/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2017 | 2/4 | SYR4 |
| Chromium | 2.56 µg/L 2.6% of the EPA limit 100 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2019 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 2.054 pCi/L No EPA limit set Highest in the ZIP: BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 1/4 | SYR4 |
| Selenium | 1.095 µg/L 2.2% of the EPA limit 50 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2019 | 1/4 | SYR4 |
| 2,4-D | 0.9000 µg/L 1.3% of the EPA limit 70 µg/L Highest in the ZIP: BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 1/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.9000 µg/L 15% of the EPA limit 6 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2019 | 1/4 | SYR4 |
| Arsenic | 0.8400 µg/L 8.4% of the EPA limit 10 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2019 | 1/4 | SYR4 |
| Simazine | 0.1000 µg/L 2.5% of the EPA limit 4 µg/L Highest in the ZIP: CITY OF THE COLONY · 45,367 people · 2019 | 1/4 | SYR4 |
| Pfba | 0.0138 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2024 | 3/4 | UCMR-5 |
| Pfpea | 0.0076 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2024 | 3/4 | UCMR-5 |
| Pfhxa | 0.0067 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2024
Highest in the ZIP: 0.0075 µg/L — CITY OF THE COLONY · 45,367 people · 2024 | 3/4 | UCMR-5 |
| PFBS | 0.0047 µg/L No EPA limit set Main supplier: CITY OF FRISCO · 231,910 people · 2024 | 3/4 | UCMR-5 |
| Lead | 0.0023 mg/L 15% of the EPA limit 0.0150 mg/L Main supplier: CITY OF FRISCO · 231,910 people · 2023 | 4/4 | 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 75034
| Supplier | State | Population served |
|---|---|---|
| CITY OF FRISCO | TX | 231,910 |
| CITY OF THE COLONY | TX | 45,367 |
| BRYAN CO. RWS & SWMD #2 | OK | 6,270 |
| CITY OF HACKBERRY | TX | 2,979 |
Frequently asked questions about ZIP 75034 tap water
Is the tap water in ZIP 75034 safe to drink?
EPA testing detected 33 contaminants across the water suppliers serving ZIP 75034. 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 75034?
4 public water suppliers report EPA drinking-water monitoring for ZIP 75034. Each is listed above with its population served.
What contaminants are in ZIP 75034's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, Fluoride, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.