What was found in ZIP 75409
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 | 2156 µg/L 54% of the EPA limit 4000 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2018
Highest in the ZIP: 2878 µg/L — SOUTH GRAYSON SUD · 6,750 people · 2018 | 2/4 | SYR4 |
| Copper | 206.5 µg/L 16% of the EPA limit 1300 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2018
Highest in the ZIP: 1050 µg/L — NORTH COLLIN SUD · 10,716 people · 2019 | 4/4 | SYR4 |
| Nitrate | 865.8 µg/L 8.7% of the EPA limit 10000 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019 | 2/4 | SYR4 |
| Nitrate-Nitrite | 772.95 µg/L 7.7% of the EPA limit 10000 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019 | 3/4 | SYR4 |
| TTHM | 80.57 µg/L 101% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 122.275 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Chloroform | 24 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 94.645 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30.46 µg/L 51% of the EPA limit 60 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 62.71 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Barium | 33.55 µg/L 1.7% of the EPA limit 2000 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2018
Highest in the ZIP: 50.8 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2013 | 3/4 | SYR4 |
| Trichloroacetic Acid | 3.875 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 36.03 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 3/4 | SYR4 |
| Lithium | 31.9 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2025
Highest in the ZIP: 35.6 µg/L — SOUTH GRAYSON SUD · 6,750 people · 2024 | 3/4 | UCMR-5 |
| Dichloroacetic Acid | 17.8 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 30.355 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 27.155 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 23.58 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019 | 4/4 | SYR4 |
| Lead | 2.36 µg/L 16% of the EPA limit 15 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2018
Highest in the ZIP: 18.392 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2018 | 4/4 | SYR4 |
| Xylenes, Total | 17.397 µg/L 0.2% of the EPA limit 10000 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019 | 1/4 | SYR4 |
| Bromoform | 7.2905 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 9.035 µg/L — SOUTH GRAYSON SUD · 6,750 people · 2019 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 8.99 pCi/L 60% of the EPA limit 15 pCi/L Highest in the ZIP: SOUTH GRAYSON SUD · 6,750 people · 2017 | 1/4 | SYR4 |
| Monochloroacetic Acid | 4.35 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 8.368 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 7.46 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 8.19 µg/L — NORTH COLLIN SUD · 10,716 people · 2019 | 4/4 | SYR4 |
| Chromium | 2.95 µg/L 3% of the EPA limit 100 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2018
Highest in the ZIP: 7.43 µg/L — SOUTH GRAYSON SUD · 6,750 people · 2019 | 2/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7900 µg/L 13% of the EPA limit 6 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 5.78 µg/L — SOUTH GRAYSON SUD · 6,750 people · 2018 | 2/4 | SYR4 |
| Gross Beta Particle Activity | 4.1 pCi/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2018 | 2/4 | SYR4 |
| Monobromoacetic Acid | 2.25 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2019
Highest in the ZIP: 4.06 µg/L — NORTH COLLIN SUD · 10,716 people · 2019 | 4/4 | SYR4 |
| Ethylbenzene | 2.73 µg/L 0.4% of the EPA limit 700 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 2.025 pCi/L 41% of the EPA limit 5 pCi/L Main supplier: CITY OF ANNA · 23,960 people · 2018 | 3/4 | 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 |
| Arsenic | 0.7800 µg/L 7.8% of the EPA limit 10 µg/L Highest in the ZIP: SOUTH GRAYSON SUD · 6,750 people · 2019 | 1/4 | SYR4 |
| Antimony, Total | 0.2000 µg/L 3.3% of the EPA limit 6 µg/L Highest in the ZIP: SOUTH GRAYSON SUD · 6,750 people · 2019 | 1/4 | SYR4 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019 | 1/4 | SYR4 |
| Simazine | 0.0980 µg/L 2.5% of the EPA limit 4 µg/L Main supplier: CITY OF ANNA · 23,960 people · 2019 | 1/4 | SYR4 |
| Pfba | 0.0055 µg/L No EPA limit set Main supplier: CITY OF ANNA · 23,960 people · 2025
Highest in the ZIP: 0.0119 µg/L — NORTH COLLIN SUD · 10,716 people · 2025 | 2/4 | UCMR-5 |
| 6:2 Fts | 0.0084 µg/L No EPA limit set Highest in the ZIP: SOUTH GRAYSON SUD · 6,750 people · 2024 | 1/4 | UCMR-5 |
| Lead | 0.0011 mg/L 7.1% of the EPA limit 0.0150 mg/L Main supplier: CITY OF ANNA · 23,960 people · 2025
Highest in the ZIP: 0.0075 mg/L — SOUTH GRAYSON SUD · 6,750 people · 2025 | 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 75409
| Supplier | State | Population served |
|---|---|---|
| CITY OF ANNA | TX | 23,960 |
| NORTH COLLIN SUD | TX | 10,716 |
| SOUTH GRAYSON SUD | TX | 6,750 |
| BRYAN CO. RWS & SWMD #2 | OK | 6,270 |
Frequently asked questions about ZIP 75409 tap water
Is the tap water in ZIP 75409 safe to drink?
EPA testing detected 33 contaminants across the water suppliers serving ZIP 75409. 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 75409?
4 public water suppliers report EPA drinking-water monitoring for ZIP 75409. Each is listed above with its population served.
What contaminants are in ZIP 75409's water?
EPA monitoring detected Fluoride, Copper, Nitrate, Nitrate-Nitrite, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.