What was found in Sugar Land'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 | 2310 µg/L 23% of the EPA limit 10000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 8/16 | SYR4 |
| Nitrate-Nitrite | 1648 µg/L 16% of the EPA limit 10000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2015
Highest in the city: 2107.5 µg/L — SIENNA REGIONAL MUD · 0 people · 2019 | 6/16 | SYR4 |
| Fluoride | 397 µg/L 9.9% of the EPA limit 4000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 1750 µg/L — SIENNA REGIONAL MUD · 0 people · 2019 | 9/16 | SYR4 |
| Copper | 539.675 µg/L 42% of the EPA limit 1300 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2017
Highest in the city: 993 µg/L — SIENNA REGIONAL MUD · 0 people · 2016 | 13/16 | SYR4 |
| Chlorite | 669.6 µg/L 67% of the EPA limit 1000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/16 | SYR4 |
| Barium | 233.15 µg/L 12% of the EPA limit 2000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 9/16 | SYR4 |
| Cyanide | 160 µg/L 80% of the EPA limit 200 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 179 µg/L — SIENNA REGIONAL MUD · 0 people · 2017 | 3/16 | SYR4 |
| TTHM | 8.07 µg/L 10% of the EPA limit 80 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 75.4 µg/L — CITY OF SUGAR LAND - NEW TERRITORY · 15,546 people · 2019 | 12/16 | SYR4 |
| Chloroform | 3.005 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 63.72 µg/L — CITY OF SUGAR LAND - NEW TERRITORY · 15,546 people · 2019 | 11/16 | SYR4 |
| Lead | 8.02 µg/L 53% of the EPA limit 15 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2017
Highest in the city: 59.4 µg/L — SIENNA REGIONAL MUD · 0 people · 2016 | 12/16 | SYR4 |
| Lithium | 32.2 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 6/16 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 8.64 µg/L 14% of the EPA limit 60 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 23.745 µg/L — FORT BEND COUNTY MUD 129 · 4,713 people · 2019 | 12/16 | SYR4 |
| Dibromochloromethane | 3.54 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 20.48 µg/L — FORT BEND COUNTY MUD 115 RIVERSTONE · 1,527 people · 2019 | 13/16 | SYR4 |
| Bromodichloromethane | 2.145 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 19.75 µg/L — SIENNA REGIONAL MUD · 0 people · 2019 | 12/16 | SYR4 |
| Gross Alpha, Excl. Radon And U | 17.5 pCi/L 117% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 8/16 | SYR4 |
| Dichloroacetic Acid | 5.77 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 12.615 µg/L — FORT BEND COUNTY MUD 140 RIVERS EDGE · 2,547 people · 2019 | 11/16 | SYR4 |
| Bromoform | 3.6 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 10.7 µg/L — SIENNA MANAGEMENT DISTRICT · 300 people · 2019 | 13/16 | SYR4 |
| Selenium | 10.125 µg/L 20% of the EPA limit 50 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 4/16 | SYR4 |
| Nitrite | 10 µg/L 1% of the EPA limit 1000 µg/L Highest in the city: SIENNA REGIONAL MUD · 0 people · 2019 | 1/16 | SYR4 |
| Dibromoacetic Acid | 4 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 9.03 µg/L — SIENNA MANAGEMENT DISTRICT · 300 people · 2019 | 11/16 | SYR4 |
| Combined Uranium | 7.4 µg/L 25% of the EPA limit 30 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 8.28 µg/L — CITY OF SUGAR LAND - GREATWOOD · 12,368 people · 2019 | 5/16 | SYR4 |
| Gross Beta Particle Activity | 8.1 pCi/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 7/16 | SYR4 |
| Monochloroacetic Acid | 4.095 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 7.1 µg/L — SIENNA REGIONAL MUD · 0 people · 2019 | 8/16 | SYR4 |
| Xylenes, Total | 6.895 µg/L 0.1% of the EPA limit 10000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 2/16 | SYR4 |
| Arsenic | 3.57 µg/L 36% of the EPA limit 10 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 4.6 µg/L — FORT BEND COUNTY MUD 115 RIVERSTONE · 1,527 people · 2018 | 6/16 | SYR4 |
| Trichloroacetic Acid | 2.53 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 4.06 µg/L — SIENNA REGIONAL MUD · 0 people · 2019 | 10/16 | SYR4 |
| Combined Radium (-226 And -228) | 3.8625 pCi/L 77% of the EPA limit 5 pCi/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2017 | 8/16 | SYR4 |
| Monobromoacetic Acid | 1.5 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 2.9 µg/L — FORT BEND COUNTY MUD 128 · 10,974 people · 2019 | 2/16 | SYR4 |
| Ethylbenzene | 1.4 µg/L 0.2% of the EPA limit 700 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/16 | SYR4 |
| Toluene | 1.4 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/16 | SYR4 |
| Simazine | 0.7800 µg/L 20% of the EPA limit 4 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 3/16 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7600 µg/L 13% of the EPA limit 6 µg/L Highest in the city: CITY OF SUGAR LAND - NEW TERRITORY · 15,546 people · 2019 | 1/16 | SYR4 |
| 6:2 Fts | 0.6720 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/16 | UCMR-5 |
| Atrazine | 0.4305 µg/L 14% of the EPA limit 3 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019
Highest in the city: 0.4350 µg/L — SIENNA REGIONAL MUD · 0 people · 2019 | 4/16 | SYR4 |
| Pfpea | 0.3580 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 2/16 | UCMR-5 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023
Highest in the city: 0.1000 mg/L — SIENNA REGIONAL MUD · 0 people · 2016 | 15/16 | LCR |
| Pfba | 0.0748 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/16 | UCMR-5 |
| Pfhxa | 0.0129 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/16 | UCMR-5 |
| PFBS | 0.0058 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/16 | UCMR-5 |
| PFOA | 0.0041 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/16 | UCMR-5 |
| Pfhpa | 0.0036 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/16 | UCMR-5 |
| Adona | 0.0034 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/16 | 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 Sugar Land
| Supplier | Population served |
|---|---|
| CITY OF SUGAR LAND | 90,909 |
| CITY OF SUGAR LAND - NEW TERRITORY | 15,546 |
| CITY OF SUGAR LAND - GREATWOOD | 12,368 |
| FORT BEND COUNTY MUD 128 | 10,974 |
| FORT BEND COUNTY MUD 129 | 4,713 |
| FORT BEND COUNTY MUD 149 | 4,638 |
| CITY OF SUGAR LAND RIVER PARK | 4,278 |
| KINGDOM HEIGHTS WATER SYSTEM | 2,934 |
| FORT BEND COUNTY MUD 140 RIVERS EDGE | 2,547 |
| FORT BEND COUNTY MUD 115 RIVERSTONE | 1,527 |
| ROYAL LAKES ESTATES | 1,002 |
| FORT BEND COUNTY MUD 253 | 420 |
| SIENNA MANAGEMENT DISTRICT | 300 |
| FORT BEND COUNTY MUD 251 | 276 |
| RICHMOND COMMUNITY ESTATES | 90 |
| SIENNA REGIONAL MUD | 0 |
Frequently asked questions about Sugar Land tap water
Is Sugar Land tap water safe to drink?
EPA testing detected 42 contaminants in the water serving Sugar Land. 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 Sugar Land?
16 public water suppliers report drinking-water monitoring for Sugar Land, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Sugar Land's water?
The contaminants EPA monitoring detected in Sugar Land include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Chlorite. 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.