What was found in Clyde'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 | 1357.5 µg/L 14% of the EPA limit 10000 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Nitrite | 740 µg/L 74% of the EPA limit 1000 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Nitrate | 525 µg/L 5.3% of the EPA limit 10000 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Copper | 126.3 µg/L 9.7% of the EPA limit 1300 µg/L Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 382 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2017 | 3/3 | SYR4 |
| TTHM | 171.1 µg/L 214% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 315.555 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2019 | 3/3 | SYR4 |
| Fluoride | 277 µg/L 6.9% of the EPA limit 4000 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Barium | 214.45 µg/L 11% of the EPA limit 2000 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Cyanide | 176.85 µg/L 88% of the EPA limit 200 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Bromoform | 95.01 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 171.98 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 39.84 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 102.225 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 33 µg/L 55% of the EPA limit 60 µg/L Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 90.74 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 24.1 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 59.49 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 24.03 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 51.8 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2019 | 3/3 | SYR4 |
| Chloroform | 24.525 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 48.8 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 6.26 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 42.05 µg/L — CITY OF CLYDE · 3,820 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 2.9 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 28.1 µg/L — CITY OF CLYDE · 3,820 people · 2019 | 3/3 | SYR4 |
| Lithium | 11.9 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2023
Highest in the city: 15.1 µg/L — CITY OF CLYDE · 3,820 people · 2025 | 2/3 | UCMR-5 |
| Monochloroacetic Acid | 7.335 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 14.59 µg/L — CITY OF CLYDE · 3,820 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 3.32 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2019
Highest in the city: 11.59 µg/L — CALLAHAN COUNTY WSC · 3,741 people · 2019 | 3/3 | SYR4 |
| Lead | 10.6 µg/L 71% of the EPA limit 15 µg/L Main supplier: EULA WSC · 3,918 people · 2019 | 3/3 | SYR4 |
| Gross Beta Particle Activity | 9.7 pCi/L No EPA limit set Highest in the city: CITY OF CLYDE · 3,820 people · 2017 | 1/3 | SYR4 |
| Selenium | 7.0085 µg/L 14% of the EPA limit 50 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Arsenic | 3.54 µg/L 35% of the EPA limit 10 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Xylenes, Total | 2.98 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Dalapon | 1.2 µg/L 0.6% of the EPA limit 200 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Chromium | 0.6152 µg/L 0.6% of the EPA limit 100 µg/L Highest in the city: CITY OF CLYDE · 3,820 people · 2019 | 1/3 | SYR4 |
| Pfba | 0.0310 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2024 | 2/3 | UCMR-5 |
| PFHXS | 0.0213 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2024
Highest in the city: 0.0225 µg/L — CITY OF CLYDE · 3,820 people · 2025 | 2/3 | UCMR-5 |
| PFOS | 0.0200 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2024 | 2/3 | UCMR-5 |
| Pfhxa | 0.0160 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2024
Highest in the city: 0.0164 µg/L — CITY OF CLYDE · 3,820 people · 2025 | 2/3 | UCMR-5 |
| Pfpea | 0.0130 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2024
Highest in the city: 0.0145 µg/L — CITY OF CLYDE · 3,820 people · 2025 | 2/3 | UCMR-5 |
| Pfhpa | 0.0075 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2024
Highest in the city: 0.0076 µg/L — CITY OF CLYDE · 3,820 people · 2025 | 2/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: EULA WSC · 3,918 people · 2025
Highest in the city: 0.0068 mg/L — CITY OF CLYDE · 3,820 people · 2025 | 3/3 | LCR |
| 6:2 Fts | 0.0062 µg/L No EPA limit set Highest in the city: CITY OF CLYDE · 3,820 people · 2025 | 1/3 | UCMR-5 |
| PFBS | 0.0059 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2024
Highest in the city: 0.0062 µg/L — CITY OF CLYDE · 3,820 people · 2025 | 2/3 | UCMR-5 |
| PFOA | 0.0062 µg/L No EPA limit set Main supplier: EULA WSC · 3,918 people · 2024 | 2/3 | 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 Clyde
| Supplier | Population served |
|---|---|
| EULA WSC | 3,918 |
| CITY OF CLYDE | 3,820 |
| CALLAHAN COUNTY WSC | 3,741 |
Frequently asked questions about Clyde tap water
Is Clyde tap water safe to drink?
EPA testing detected 36 contaminants in the water serving Clyde. 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 Clyde?
3 public water suppliers report drinking-water monitoring for Clyde, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Clyde's water?
The contaminants EPA monitoring detected in Clyde include Nitrate-Nitrite, Nitrite, Nitrate, Copper, 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.