What was found in Aransas Pass's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 222.165 µg/L 17% of the EPA limit 1300 µg/L Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2017 | 1/1 | SYR4 |
| TTHM | 56.23 µg/L 70% of the EPA limit 80 µg/L Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Lithium | 53.8 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2025 | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 32.87 µg/L 55% of the EPA limit 60 µg/L Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Bromoform | 32.67 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 19.995 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 19.67 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 18.975 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 12.9 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Chloroform | 8.145 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 6.28 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Lead | 5.759 µg/L 38% of the EPA limit 15 µg/L Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2017 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.465 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.8 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2019 | 1/1 | SYR4 |
| Pfba | 0.0110 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0052 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0034 µg/L No EPA limit set Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0028 mg/L 19% of the EPA limit 0.0150 mg/L Main supplier: CITY OF ARANSAS PASS · 8,088 people · 2023 | 1/1 | LCR |
Water suppliers serving Aransas Pass
| Supplier | Population served |
|---|---|
| CITY OF ARANSAS PASS | 8,088 |
Frequently asked questions about Aransas Pass tap water
Is Aransas Pass tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Aransas Pass. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Aransas Pass?
1 public water supplier report drinking-water monitoring for Aransas Pass, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Aransas Pass's water?
The contaminants EPA monitoring detected in Aransas Pass include Copper, TTHM, Lithium, Total Haloacetic Acids (HAA5), Bromoform. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.