Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
0
health-based violations
11
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MR | Monitoring | Archived | 2026-01-01 → 2026-01-31 |
| MR | Monitoring | Archived | 2026-01-01 → 2026-01-31 |
| MR | Monitoring | Resolved | 2014-11-01 → 2014-11-30 |
| MR | Monitoring | Resolved | 2014-11-01 → 2014-11-30 |
| MR | Monitoring | Resolved | 2014-11-01 → 2014-11-30 |
| MR | Monitoring | Resolved | 2014-11-01 → 2014-11-30 |
| MR | Monitoring | Resolved | 2014-11-01 → 2014-11-30 |
| MR | Monitoring | Resolved | 2014-11-01 → 2014-11-30 |
| MR | Monitoring | Resolved | 2014-11-01 → 2014-11-30 |
| MR | Monitoring | Resolved | 2011-07-01 → 2011-09-30 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
Other contaminants detected
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 this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 539.675 µg/L 42% of the EPA limit 1300 µg/L
worst single sample: 1169.9 µg/L | 226/233 | SYR4 | 2012–2017 |
| Chlorite | 669.6 µg/L 67% of the EPA limit 1000 µg/L
worst single sample: 885 µg/L | 187/222 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 8.64 µg/L 14% of the EPA limit 60 µg/L
worst single sample: 9.9 µg/L | 174/224 | SYR4 | 2012–2019 |
| Lead | 8.02 µg/L 53% of the EPA limit 15 µg/L
worst single sample: 51 µg/L | 173/233 | SYR4 | 2012–2017 |
| TTHM | 8.07 µg/L 10% of the EPA limit 80 µg/L
worst single sample: 14.6 µg/L | 167/224 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 5.77 µg/L No EPA limit set
worst single sample: 7.3 µg/L | 154/224 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4 µg/L No EPA limit set
worst single sample: 4.8 µg/L | 149/224 | SYR4 | 2012–2019 |
| Chloroform | 3.005 µg/L No EPA limit set
worst single sample: 3.8 µg/L | 114/266 | SYR4 | 2012–2019 |
| Dibromochloromethane | 3.54 µg/L No EPA limit set
worst single sample: 8 µg/L | 113/266 | SYR4 | 2012–2019 |
| Bromodichloromethane | 2.145 µg/L No EPA limit set
worst single sample: 6.6 µg/L | 92/266 | SYR4 | 2012–2019 |
| Nitrate | 2310 µg/L 23% of the EPA limit 10000 µg/L
worst single sample: 2560 µg/L | 92/108 | SYR4 | 2012–2019 |
| Bromoform | 3.6 µg/L No EPA limit set
worst single sample: 4.8 µg/L | 86/266 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 2.53 µg/L No EPA limit set
worst single sample: 2.8 µg/L | 38/224 | SYR4 | 2012–2019 |
| Atrazine | 0.4305 µg/L 14% of the EPA limit 3 µg/L
worst single sample: 1.2 µg/L | 20/41 | SYR4 | 2012–2019 |
| Barium | 233.15 µg/L 12% of the EPA limit 2000 µg/L
worst single sample: 236 µg/L | 20/20 | SYR4 | 2012–2019 |
| Cyanide | 160 µg/L 80% of the EPA limit 200 µg/L | 20/36 | SYR4 | 2014–2019 |
| Fluoride | 397 µg/L 9.9% of the EPA limit 4000 µg/L
worst single sample: 720 µg/L | 20/20 | SYR4 | 2012–2019 |
| Lithium | 32.2 µg/L No EPA limit set | 18/22 | UCMR-5 | 2023 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L | 14/14 | LCR | 2023 |
| Nitrate-Nitrite | 1648 µg/L 16% of the EPA limit 10000 µg/L
worst single sample: 1840 µg/L | 13/17 | SYR4 | 2012–2015 |
| Simazine | 0.7800 µg/L 20% of the EPA limit 4 µg/L
worst single sample: 0.8100 µg/L | 13/41 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 8.1 pCi/L No EPA limit set
worst single sample: 8.9 pCi/L | 9/12 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 4.095 µg/L No EPA limit set
worst single sample: 4.2 µg/L | 8/224 | SYR4 | 2012–2019 |
| Arsenic | 3.57 µg/L 36% of the EPA limit 10 µg/L
worst single sample: 3.6 µg/L | 7/20 | SYR4 | 2012–2019 |
| Combined Uranium | 7.4 µg/L 25% of the EPA limit 30 µg/L
worst single sample: 8.3 µg/L | 7/11 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 3.8625 pCi/L 77% of the EPA limit 5 pCi/L
worst single sample: 4.15 pCi/L | 6/7 | SYR4 | 2012–2017 |
| Gross Alpha, Excl. Radon And U | 17.5 pCi/L 117% of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 20 pCi/L | 6/11 | SYR4 | 2013–2019 |
| Selenium | 10.125 µg/L 20% of the EPA limit 50 µg/L
worst single sample: 10.9 µg/L | 6/20 | SYR4 | 2012–2019 |
| Xylenes, Total | 6.895 µg/L 0.1% of the EPA limit 10000 µg/L
worst single sample: 7.9 µg/L | 4/42 | SYR4 | 2012–2019 |
| Ethylbenzene | 1.4 µg/L 0.2% of the EPA limit 700 µg/L | 1/42 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 1.5 µg/L No EPA limit set | 1/224 | SYR4 | 2012–2019 |
| Toluene | 1.4 µg/L 0.1% of the EPA limit 1000 µg/L | 1/42 | SYR4 | 2012–2019 |
70 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts8:2 Fts9Cl-PF3ONSAntimony, TotalAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about City of Sugar Land
Is City of Sugar Land tap water safe to drink?
EPA monitoring detected 40 contaminants in City of Sugar Land's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in City of Sugar Land's water?
EPA monitoring detected Copper, Chlorite, Total Haloacetic Acids (HAA5), Lead, TTHM, and others. The full list with the level and data source for each is above.
How many people does City of Sugar Land serve?
City of Sugar Land reports serving 90,909 people in Texas, per its EPA record.
Has City of Sugar Land had any water quality violations?
The EPA has 11 violations on file for City of Sugar Land, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
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.