What was found in Bastrop'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 |
|---|---|---|---|
| Nitrate-Nitrite | 164 µg/L 1.6% of the EPA limit 10000 µg/L Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 4876 µg/L — CITY OF BASTROP · 13,209 people · 2013 | 4/4 | SYR4 |
| Nitrate | 170 µg/L 1.7% of the EPA limit 10000 µg/L Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 4460 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 4/4 | SYR4 |
| Fluoride | 812.5 µg/L 20% of the EPA limit 4000 µg/L Main supplier: AQUA WSC · 86,325 people · 2018
Highest in the city: 2050 µg/L — BASTROP COUNTY WCID 2 · 7,269 people · 2017 | 4/4 | SYR4 |
| Copper | 254.7 µg/L 20% of the EPA limit 1300 µg/L Main supplier: AQUA WSC · 86,325 people · 2017
Highest in the city: 1700 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 4/4 | SYR4 |
| Barium | 137.5 µg/L 6.9% of the EPA limit 2000 µg/L Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 393 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 4/4 | SYR4 |
| TTHM | 79.5 µg/L 99% of the EPA limit 80 µg/L Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 114 µg/L — BASTROP COUNTY WCID 2 · 7,269 people · 2019 | 4/4 | SYR4 |
| Lithium | 83 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2024 | 3/4 | UCMR-5 |
| Bromoform | 39.3 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 64.77 µg/L — BASTROP COUNTY WCID 2 · 7,269 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 27.79 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 47.01 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 14.885 µg/L 25% of the EPA limit 60 µg/L Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 21.61 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 13.065 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 21.13 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 4/4 | SYR4 |
| Cyanide | 20 µg/L 10% of the EPA limit 200 µg/L Highest in the city: CITY OF BASTROP · 13,209 people · 2019 | 1/4 | SYR4 |
| Chloroform | 9.44 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 18.275 µg/L — BASTROP COUNTY WCID 2 · 7,269 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 9.295 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 15.28 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 4/4 | SYR4 |
| Selenium | 3.7 µg/L 7.4% of the EPA limit 50 µg/L Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 14.82 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 2/4 | SYR4 |
| Lead | 6.441 µg/L 43% of the EPA limit 15 µg/L Main supplier: AQUA WSC · 86,325 people · 2017
Highest in the city: 9.575 µg/L — BASTROP COUNTY WCID 2 · 7,269 people · 2019 | 4/4 | SYR4 |
| Gross Beta Particle Activity | 6.62 pCi/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2017 | 3/4 | SYR4 |
| Dichloroacetic Acid | 6.21 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 6.43 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 3/4 | SYR4 |
| Monochloroacetic Acid | 5.86 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 5.125 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 5.7 µg/L — BASTROP COUNTY WCID 2 · 7,269 people · 2019 | 3/4 | SYR4 |
| Arsenic | 4.705 µg/L 47% of the EPA limit 10 µg/L Highest in the city: CITY OF BASTROP · 13,209 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 3.8 pCi/L 76% of the EPA limit 5 pCi/L Main supplier: AQUA WSC · 86,325 people · 2017 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.8 pCi/L 19% of the EPA limit 15 pCi/L Main supplier: AQUA WSC · 86,325 people · 2017 | 2/4 | SYR4 |
| Monobromoacetic Acid | 1.805 µg/L No EPA limit set Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 2.745 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 3/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.8100 µg/L 14% of the EPA limit 6 µg/L Main supplier: AQUA WSC · 86,325 people · 2019
Highest in the city: 2.4 µg/L — CITY OF BASTROP · 13,209 people · 2019 | 4/4 | SYR4 |
| Combined Uranium | 1.98 µg/L 6.6% of the EPA limit 30 µg/L Highest in the city: CITY OF BASTROP · 13,209 people · 2019 | 1/4 | SYR4 |
| Vinyl Chloride | 0.8900 µg/L 45% of the EPA limit 2 µg/L Main supplier: AQUA WSC · 86,325 people · 2019 | 1/4 | SYR4 |
| Chromium | 0.5140 µg/L 0.5% of the EPA limit 100 µg/L Highest in the city: CITY OF BASTROP · 13,209 people · 2019 | 1/4 | SYR4 |
| Asbestos | 0.3766 MFL 5.4% of the EPA limit 7 MFL Highest in the city: CITY OF BASTROP · 13,209 people · 2012 | 1/4 | SYR4 |
| Atrazine | 0.1490 µg/L 5% of the EPA limit 3 µg/L Highest in the city: CITY OF BASTROP · 13,209 people · 2019 | 1/4 | SYR4 |
| Pfpea | 0.0332 µg/L No EPA limit set Highest in the city: BASTROP COUNTY WCID 2 · 7,269 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L Main supplier: AQUA WSC · 86,325 people · 2025
Highest in the city: 0.0014 mg/L — BASTROP COUNTY WCID 2 · 7,269 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Bastrop
| Supplier | Population served |
|---|---|
| AQUA WSC | 86,325 |
| CITY OF BASTROP | 13,209 |
| BASTROP COUNTY WCID 2 | 7,269 |
| J & R MHP | 46 |
Frequently asked questions about Bastrop tap water
Is Bastrop tap water safe to drink?
EPA testing detected 32 contaminants in the water serving Bastrop. 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 Bastrop?
4 public water suppliers report drinking-water monitoring for Bastrop, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Bastrop's water?
The contaminants EPA monitoring detected in Bastrop include Nitrate-Nitrite, Nitrate, Fluoride, Copper, Barium. 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.