What was found in Magnolia'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 |
|---|---|---|---|
| Copper | 540.7999999999998 µg/L 42% of the EPA limit 1300 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2018
Highest in the city: 1066.3999999999999 µg/L — SENDERA RANCH · 1,110 people · 2019 | 16/23 | SYR4 |
| Fluoride | 344 µg/L 8.6% of the EPA limit 4000 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 559 µg/L — LONE STAR PUBLIC WATER SYSTEM · 2,397 people · 2019 | 15/23 | SYR4 |
| Barium | 159.8 µg/L 8% of the EPA limit 2000 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 355.2 µg/L — IS ZEN CENTER LOTUS LAKE · 160 people · 2018 | 16/23 | SYR4 |
| Nitrate | 80 µg/L 0.8% of the EPA limit 10000 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 180.99999999999903 µg/L — LAKE WINDCREST WATER SYSTEM · 3,144 people · 2019 | 15/23 | SYR4 |
| Nitrate-Nitrite | 19.5 µg/L 0.2% of the EPA limit 10000 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2015
Highest in the city: 170 µg/L — BENDERS LANDING WATER PLANT 1 & 2 · 5,892 people · 2019 | 14/23 | SYR4 |
| TTHM | 11.77 µg/L 15% of the EPA limit 80 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 58.86 µg/L — WOODLAND LAKES ESTATES · 543 people · 2019 | 10/23 | SYR4 |
| Bromodichloromethane | 3 µg/L No EPA limit set Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 25.5 µg/L — WOODLAND LAKES ESTATES · 543 people · 2019 | 8/23 | SYR4 |
| Gross Beta Particle Activity | 7.109999999999999 pCi/L No EPA limit set Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 23.979999999999997 pCi/L — LONE STAR PUBLIC WATER SYSTEM · 2,397 people · 2019 | 9/23 | SYR4 |
| Chloroform | 1.5 µg/L No EPA limit set Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 21.8 µg/L — SONOMA RIDGE-MCCALL SOUND · 294 people · 2019 | 9/23 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.93 µg/L 20% of the EPA limit 60 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 17.1 µg/L — WESTWOOD NORTH WSC · 3,186 people · 2019 | 7/23 | SYR4 |
| Lead | 2.679999999999999 µg/L 18% of the EPA limit 15 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2018
Highest in the city: 16.78999999999999 µg/L — WOODLAND LAKES ESTATES · 543 people · 2019 | 15/23 | SYR4 |
| Lithium | 13.9 µg/L No EPA limit set Highest in the city: BENDERS LANDING WATER PLANT 1 & 2 · 5,892 people · 2024 | 1/23 | UCMR-5 |
| Dibromochloromethane | 4.75 µg/L No EPA limit set Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 13.735 µg/L — WOODLAND LAKES ESTATES · 543 people · 2019 | 11/23 | SYR4 |
| Xylenes, Total | 12.11 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the city: RED OAK RANCH WATER SYSTEM · 1,233 people · 2019 | 4/23 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6 pCi/L 40% of the EPA limit 15 pCi/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 12.05 pCi/L — LONE STAR PUBLIC WATER SYSTEM · 2,397 people · 2019 | 13/23 | SYR4 |
| Dichloroacetic Acid | 8.2 µg/L No EPA limit set Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 10.5 µg/L — SONOMA RIDGE-MCCALL SOUND · 294 people · 2018 | 6/23 | SYR4 |
| Bromoform | 3.3 µg/L No EPA limit set Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 9.065 µg/L — LONE STAR PUBLIC WATER SYSTEM · 2,397 people · 2019 | 8/23 | SYR4 |
| Arsenic | 2.6 µg/L 26% of the EPA limit 10 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 8.65 µg/L — LAKE WINDCREST WATER SYSTEM · 3,144 people · 2018 | 9/23 | SYR4 |
| Combined Uranium | 1.1 µg/L 3.7% of the EPA limit 30 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 7.6 µg/L — SONOMA RIDGE-MCCALL SOUND · 294 people · 2014 | 7/23 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 7.1 µg/L 118% of the EPA limit, at the 95th percentile of samples — 6 µg/L Highest in the city: WESTWOOD NORTH WSC · 3,186 people · 2019 | 2/23 | SYR4 |
| Selenium | 3.1 µg/L 6.2% of the EPA limit 50 µg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 6.199999999999999 µg/L — LAKE WINDCREST WATER SYSTEM · 3,144 people · 2018 | 9/23 | SYR4 |
| Dibromoacetic Acid | 4.14 µg/L No EPA limit set Main supplier: CITY OF MAGNOLIA · 7,107 people · 2019
Highest in the city: 5.6 µg/L — BENDERS LANDING WATER PLANT 1 & 2 · 5,892 people · 2019 | 7/23 | SYR4 |
| Trichloroacetic Acid | 4.4 µg/L No EPA limit set Highest in the city: WESTWOOD NORTH WSC · 3,186 people · 2019 | 2/23 | SYR4 |
| Combined Radium (-226 And -228) | 1.3565 pCi/L 27% of the EPA limit 5 pCi/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2015
Highest in the city: 4.244 pCi/L — LONE STAR PUBLIC WATER SYSTEM · 2,397 people · 2018 | 13/23 | SYR4 |
| Toluene | 1.4 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: LAKE WINDCREST WATER SYSTEM · 3,144 people · 2019 | 1/23 | SYR4 |
| Ethylbenzene | 1.24 µg/L 0.2% of the EPA limit 700 µg/L Highest in the city: SENDERA RANCH · 1,110 people · 2019 | 4/23 | SYR4 |
| Mercury | 0.5400 µg/L 27% of the EPA limit 2 µg/L Highest in the city: LONE STAR PUBLIC WATER SYSTEM · 2,397 people · 2019 | 1/23 | SYR4 |
| Lead | 0.00061 mg/L 4.1% of the EPA limit 0.0150 mg/L Main supplier: CITY OF MAGNOLIA · 7,107 people · 2025
Highest in the city: 0.0065 mg/L — WOODLAND LAKES ESTATES · 543 people · 2025 | 22/23 | 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 Magnolia
| Supplier | Population served |
|---|---|
| CITY OF MAGNOLIA | 7,107 |
| BENDERS LANDING WATER PLANT 1 & 2 | 5,892 |
| WESTWOOD NORTH WSC | 3,186 |
| LAKE WINDCREST WATER SYSTEM | 3,144 |
| INDIGO LAKES WATER SYSTEM | 2,517 |
| LONE STAR PUBLIC WATER SYSTEM | 2,397 |
| CREEKSIDE VILLAGE | 2,277 |
| MILL CREEK | 2,232 |
| MOSTYN MANOR | 2,058 |
| DECKER OAKS | 1,986 |
| DECKER FARMS WATER PLANT | 1,737 |
| NORTHCREST RANCH WATER SYSTEM | 1,341 |
| RED OAK RANCH WATER SYSTEM | 1,233 |
| SENDERA RANCH | 1,110 |
| PINE ACRE TRAILS | 732 |
| MAGNOLIA RESERVE WATER PLANT | 675 |
| WOODLAND LAKES ESTATES | 543 |
| COLONY AT PINEHURST WATER SYSTEM | 540 |
| SWEETWATER RIDGE WATER PLANT | 429 |
| SONOMA RIDGE-MCCALL SOUND | 294 |
| IS ZEN CENTER LOTUS LAKE | 160 |
| RANCH HILL | 129 |
| MAVERA REGIONAL WATER PLANT | 0 |
Frequently asked questions about Magnolia tap water
Is Magnolia tap water safe to drink?
EPA testing detected 28 contaminants in the water serving Magnolia. 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 Magnolia?
23 public water suppliers report drinking-water monitoring for Magnolia, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Magnolia's water?
The contaminants EPA monitoring detected in Magnolia include Copper, Fluoride, Barium, Nitrate, Nitrate-Nitrite. 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.