What was found in Mount Pleasant'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 | 419.6 µg/L 4.2% of the EPA limit 10000 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Fluoride | 117.025 µg/L 2.9% of the EPA limit 4000 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Copper | 96.9 µg/L 7.5% of the EPA limit 1300 µg/L Main supplier: TRI SUD · 17,641 people · 2017
Highest in the city: 99.21 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| TTHM | 64.02 µg/L 80% of the EPA limit 80 µg/L Main supplier: TRI SUD · 17,641 people · 2019
Highest in the city: 86.6 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| Cyanide | 86.08 µg/L 43% of the EPA limit 200 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Barium | 71.2 µg/L 3.6% of the EPA limit 2000 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 38.36 µg/L 64% of the EPA limit 60 µg/L Main supplier: TRI SUD · 17,641 people · 2019
Highest in the city: 43.875 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| Chloroform | 35.48 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019
Highest in the city: 40.695 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 22.91 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019
Highest in the city: 24.535 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 23.7 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019
Highest in the city: 24.475 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| Nitrite | 24.2 µg/L 2.4% of the EPA limit 1000 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 14.525 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019
Highest in the city: 16.23 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 11.05 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019
Highest in the city: 12.575 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| Lead | 11.58 µg/L 77% of the EPA limit 15 µg/L Main supplier: TRI SUD · 17,641 people · 2017 | 2/2 | SYR4 |
| Monochloroacetic Acid | 5.7 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 5.435 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 4.6 pCi/L No EPA limit set Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.33 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019
Highest in the city: 3.125 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 2/2 | SYR4 |
| Bromoform | 3 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2019 | 2/2 | SYR4 |
| Selenium | 1.9085 µg/L 3.8% of the EPA limit 50 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Arsenic | 0.7000 µg/L 7% of the EPA limit 10 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 0.5300 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Thallium, Total | 0.3600 µg/L 18% of the EPA limit 2 µg/L Highest in the city: CITY OF MOUNT PLEASANT · 16,238 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0066 µg/L No EPA limit set Main supplier: TRI SUD · 17,641 people · 2024
Highest in the city: 0.0123 µg/L — CITY OF MOUNT PLEASANT · 16,238 people · 2025 | 2/2 | UCMR-5 |
| Lead | 0.0014 mg/L 9.6% of the EPA limit 0.0150 mg/L Main supplier: TRI SUD · 17,641 people · 2023 | 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.
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 Mount Pleasant
| Supplier | Population served |
|---|---|
| TRI SUD | 17,641 |
| CITY OF MOUNT PLEASANT | 16,238 |
Frequently asked questions about Mount Pleasant tap water
Is Mount Pleasant tap water safe to drink?
EPA testing detected 25 contaminants in the water serving Mount Pleasant. 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 Mount Pleasant?
2 public water suppliers report drinking-water monitoring for Mount Pleasant, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Mount Pleasant's water?
The contaminants EPA monitoring detected in Mount Pleasant include Nitrate, Fluoride, Copper, TTHM, Cyanide. 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.