What was found in Santa Fe'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 | 1290 µg/L 13% of the EPA limit 10000 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2015 | 3/4 | SYR4 |
| Nitrate | 1274 µg/L 13% of the EPA limit 10000 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 4/4 | SYR4 |
| Fluoride | 630 µg/L 16% of the EPA limit 4000 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2018
Highest in the city: 886 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 4/4 | SYR4 |
| Copper | 403.15 µg/L 31% of the EPA limit 1300 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 4/4 | SYR4 |
| Barium | 105 µg/L 5.3% of the EPA limit 2000 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2018
Highest in the city: 214.9 µg/L — K & B WATERWORKS · 81 people · 2019 | 4/4 | SYR4 |
| TTHM | 81.63 µg/L 102% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 126.25 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 31.78 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 43.39 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 33.94 µg/L 57% of the EPA limit 60 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 40.78 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 26.03 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 37.03 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 4/4 | SYR4 |
| Chloroform | 22.65 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 32.87 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 19.63 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 3/4 | SYR4 |
| Bromoform | 14.895 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 18.06 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 4/4 | SYR4 |
| Lithium | 17.8 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2023 | 1/4 | UCMR-5 |
| Trichloroacetic Acid | 7.7 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 16.14 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 2/4 | SYR4 |
| Dibromoacetic Acid | 9.68 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 9.96 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 9.955 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/4 | SYR4 |
| Monochloroacetic Acid | 4.77 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 9.135 µg/L — LONE PINE SUBDIVISION · 141 people · 2019 | 2/4 | SYR4 |
| Lead | 3.81 µg/L 25% of the EPA limit 15 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019
Highest in the city: 8.52 µg/L — K & B WATERWORKS · 81 people · 2018 | 4/4 | SYR4 |
| Gross Beta Particle Activity | 5.54 pCi/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2018 | 1/4 | SYR4 |
| Arsenic | 2.47 µg/L 25% of the EPA limit 10 µg/L Highest in the city: LONE PINE SUBDIVISION · 141 people · 2019 | 1/4 | SYR4 |
| Xylenes, Total | 1.795 µg/L 0% of the EPA limit 10000 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Highest in the city: K & B WATERWORKS · 81 people · 2015 | 1/4 | SYR4 |
| Atrazine | 0.2215 µg/L 7.4% of the EPA limit 3 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 1/4 | SYR4 |
| Simazine | 0.2080 µg/L 5.2% of the EPA limit 4 µg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 1/4 | SYR4 |
| Pfpea | 0.1560 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 1/4 | UCMR-5 |
| Pfba | 0.0193 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 1/4 | UCMR-5 |
| Pfhxa | 0.0062 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 1/4 | UCMR-5 |
| 6:2 Fts | 0.0060 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 1/4 | UCMR-5 |
| PFBS | 0.0045 µg/L No EPA limit set Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: GALVESTON COUNTY WCID 8 · 7,065 people · 2026
Highest in the city: 0.0010 mg/L — RAIN RIVER ESTATES · 100 people · 2023 | 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 Santa Fe
| Supplier | Population served |
|---|---|
| GALVESTON COUNTY WCID 8 | 7,065 |
| LONE PINE SUBDIVISION | 141 |
| RAIN RIVER ESTATES | 100 |
| K & B WATERWORKS | 81 |
Frequently asked questions about Santa Fe tap water
Is Santa Fe tap water safe to drink?
EPA testing detected 30 contaminants in the water serving Santa Fe. 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 Santa Fe?
4 public water suppliers report drinking-water monitoring for Santa Fe, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Santa Fe's water?
The contaminants EPA monitoring detected in Santa Fe 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.