What was found in Corsicana'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 |
|---|---|---|---|
| Fluoride | 811.25 µg/L 20% of the EPA limit 4000 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Nitrate | 572.35 µg/L 5.7% of the EPA limit 10000 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Copper | 130 µg/L 10% of the EPA limit 1300 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 509.3 µg/L — CORBET WSC · 3,234 people · 2017 | 10/10 | SYR4 |
| Cyanide | 134.8 µg/L 67% of the EPA limit 200 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| TTHM | 72.825 µg/L 91% of the EPA limit 80 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 106 µg/L — ANGUS WSC · 1,206 people · 2019 | 10/10 | SYR4 |
| Chloroform | 56.59 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 77.155 µg/L — ANGUS WSC · 1,206 people · 2019 | 10/10 | SYR4 |
| Total Haloacetic Acids (HAA5) | 47.075 µg/L 78% of the EPA limit 60 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 61.135 µg/L — ANGUS WSC · 1,206 people · 2019 | 10/10 | SYR4 |
| Barium | 55.505 µg/L 2.8% of the EPA limit 2000 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Dichloroacetic Acid | 26.425 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 34.95 µg/L — ANGUS WSC · 1,206 people · 2019 | 10/10 | SYR4 |
| Bromodichloromethane | 20.451 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 30.225 µg/L — ANGUS WSC · 1,206 people · 2019 | 10/10 | SYR4 |
| Trichloroacetic Acid | 17.55 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 21.3 µg/L — PURDON WATER · 528 people · 2019 | 10/10 | SYR4 |
| Lead | 12.88 µg/L 86% of the EPA limit 15 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 14.55 µg/L — CORBET WSC · 3,234 people · 2017 | 9/10 | SYR4 |
| Dibromochloromethane | 11.795 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 14.405 µg/L — ANGUS WSC · 1,206 people · 2019 | 10/10 | SYR4 |
| Monochloroacetic Acid | 3.21 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 9.175 µg/L — ANGUS WSC · 1,206 people · 2019 | 10/10 | SYR4 |
| Dibromoacetic Acid | 4.56 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 5.79 µg/L — ANGUS WSC · 1,206 people · 2019 | 10/10 | SYR4 |
| Monobromoacetic Acid | 3.6 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 10/10 | SYR4 |
| Chromium | 2.98 µg/L 3% of the EPA limit 100 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Bromoform | 2.3625 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019
Highest in the city: 2.565 µg/L — CORBET WSC · 3,234 people · 2019 | 10/10 | SYR4 |
| Selenium | 2.52 µg/L 5% of the EPA limit 50 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Arsenic | 2.1925 µg/L 22% of the EPA limit 10 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2017 | 1/10 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7950 µg/L 13% of the EPA limit 6 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Mercury | 0.6497 µg/L 32% of the EPA limit 2 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Atrazine | 0.5800 µg/L 19% of the EPA limit 3 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Antimony, Total | 0.2300 µg/L 3.8% of the EPA limit 6 µg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2019 | 1/10 | SYR4 |
| Pfba | 0.0077 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2024
Highest in the city: 0.0258 µg/L — M E N WSC · 4,040 people · 2024 | 3/10 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2025
Highest in the city: 0.0080 mg/L — BEATON LAKE ESTATES WATER SYSTEM · 93 people · 2024 | 10/10 | LCR |
| Pfpea | 0.0055 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2024 | 2/10 | UCMR-5 |
| Pfhxa | 0.0048 µg/L No EPA limit set Main supplier: CITY OF CORSICANA PWS · 25,885 people · 2024 | 2/10 | UCMR-5 |
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 Corsicana
| Supplier | Population served |
|---|---|
| CITY OF CORSICANA PWS | 25,885 |
| M E N WSC | 4,040 |
| CORBET WSC | 3,234 |
| B & B WSC | 3,027 |
| ANGUS WSC | 1,206 |
| EMHOUSE WATER SYSTEM | 1,146 |
| RETREAT WATER SYSTEM | 864 |
| PURDON WATER | 528 |
| BEATON LAKE ESTATES WATER SYSTEM | 93 |
| NORTHCREST WATER SYSTEM | 60 |
Frequently asked questions about Corsicana tap water
Is Corsicana tap water safe to drink?
EPA testing detected 29 contaminants in the water serving Corsicana. 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 Corsicana?
10 public water suppliers report drinking-water monitoring for Corsicana, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Corsicana's water?
The contaminants EPA monitoring detected in Corsicana include Fluoride, Nitrate, Copper, Cyanide, TTHM. 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.