What was found in ZIP 78654
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-Nitrite | 3930 µg/L 39% of the EPA limit 10000 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2013 | 1/2 | SYR4 |
| Nitrate | 3761.5 µg/L 38% of the EPA limit 10000 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019 | 2/2 | SYR4 |
| Copper | 228.8 µg/L 18% of the EPA limit 1300 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2017
Highest in the ZIP: 247.5 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Fluoride | 176.5 µg/L 4.4% of the EPA limit 4000 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 246.5 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Cyanide | 116 µg/L 58% of the EPA limit 200 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 197.5 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2018 | 2/2 | SYR4 |
| TTHM | 40.045 µg/L 50% of the EPA limit 80 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 176.5 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 37.34 µg/L 62% of the EPA limit 60 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 140.8 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Chlorite | 131.7 µg/L 13% of the EPA limit 1000 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019 | 1/2 | SYR4 |
| Chloroform | 19.37 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 95.475 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Barium | 72.04 µg/L 3.6% of the EPA limit 2000 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 76.06 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 6.2 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 70.82 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 22.415 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 62.15 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 13.5 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 47.1 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 9.165 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 25.455 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 18.105 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019 | 2/2 | SYR4 |
| Lead | 6.38 µg/L 43% of the EPA limit 15 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2017
Highest in the ZIP: 15.903 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Lithium | 11.3 µg/L No EPA limit set Highest in the ZIP: CITY OF GRANITE SHOALS · 6,795 people · 2024 | 1/2 | UCMR-5 |
| Dibromoacetic Acid | 6 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 7.64 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1.19 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 5.23 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Bromoform | 5.065 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019 | 2/2 | SYR4 |
| Selenium | 3.4 µg/L 6.8% of the EPA limit 50 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 4.93 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Dalapon | 4.14 µg/L 2.1% of the EPA limit 200 µg/L Highest in the ZIP: CITY OF GRANITE SHOALS · 6,795 people · 2019 | 1/2 | SYR4 |
| Chromium | 2.38 µg/L 2.4% of the EPA limit 100 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 3.37 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Arsenic | 1.39 µg/L 14% of the EPA limit 10 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 2.09 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Xylenes, Total | 2 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: CITY OF GRANITE SHOALS · 6,795 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2016 | 1/2 | SYR4 |
| Toluene | 0.6700 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the ZIP: CITY OF GRANITE SHOALS · 6,795 people · 2019 | 1/2 | SYR4 |
| Thallium, Total | 0.2440 µg/L 12% of the EPA limit 2 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019
Highest in the ZIP: 0.3460 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2019 | 2/2 | SYR4 |
| Atrazine | 0.1400 µg/L 4.7% of the EPA limit 3 µg/L Highest in the ZIP: CITY OF GRANITE SHOALS · 6,795 people · 2019 | 1/2 | SYR4 |
| Simazine | 0.0700 µg/L 1.8% of the EPA limit 4 µg/L Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0087 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2025
Highest in the ZIP: 0.0167 µg/L — CITY OF GRANITE SHOALS · 6,795 people · 2024 | 2/2 | UCMR-5 |
| 6:2 Fts | 0.0064 µg/L No EPA limit set Main supplier: CITY OF MARBLE FALLS · 8,059 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0018 mg/L 12% of the EPA limit 0.0150 mg/L Main supplier: CITY OF MARBLE FALLS · 8,059 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.
Water suppliers serving ZIP 78654
| Supplier | State | Population served |
|---|---|---|
| CITY OF MARBLE FALLS | TX | 8,059 |
| CITY OF GRANITE SHOALS | TX | 6,795 |
Frequently asked questions about ZIP 78654 tap water
Is the tap water in ZIP 78654 safe to drink?
EPA testing detected 33 contaminants across the water suppliers serving ZIP 78654. 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 78654?
2 public water suppliers report EPA drinking-water monitoring for ZIP 78654. Each is listed above with its population served.
What contaminants are in ZIP 78654's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Copper, Fluoride, Cyanide, and others across this ZIP's suppliers. The full list with levels and sources is above.