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Tap water quality report

City of Rosenberg

EPA monitoring tested this supplier for 109 contaminants and detected 28. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
28
detected
43,158
people served
0
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
SWP
Ownership
Local government
Counties served
Fort Bend

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
22
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0338 µg/L 4/14 2025
Pfpea 0.1320 µg/L 4/14 2025
Pfhxa 0.0060 µg/L 2/14 2025
PFBS 0.0041 µg/L 1/14 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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
273 µg/L 21%
of the EPA limit 1300 µg/L
 123/131 SYR4 2013–2019
Lead
15 µg/L 100%
of the EPA limit 15 µg/L
 61/131 SYR4 2013–2019
Nitrate
540 µg/L 5.4%
of the EPA limit 10000 µg/L
 18/100 SYR4 2012–2019
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Fluoride
530 µg/L 13%
of the EPA limit 4000 µg/L
 13/13 SYR4 2012–2018
Barium
370 µg/L 19%
of the EPA limit 2000 µg/L
 12/12 SYR4 2014–2018
Lithium
23.6 µg/L
No EPA limit set
 11/14 UCMR-5 2025
Dibromochloromethane
3.9 µg/L
No EPA limit set
 10/44 SYR4 2012–2019
Arsenic
4.9 µg/L 49%
of the EPA limit 10 µg/L
 9/12 SYR4 2014–2018
TTHM
25.1 µg/L 31%
of the EPA limit 80 µg/L
 9/20 SYR4 2012–2019
Bromoform
1.4 µg/L
No EPA limit set
 7/44 SYR4 2012–2019
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 3/4 SYR4 2014–2017
Gross Beta Particle Activity
8.9 pCi/L
No EPA limit set
 3/8 SYR4 2014–2017
Combined Uranium
1.1 µg/L 3.7%
of the EPA limit 30 µg/L
 2/8 SYR4 2014–2017
Dibromoacetic Acid
1.9 µg/L
No EPA limit set
 2/20 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
4.9 pCi/L 33%
of the EPA limit 15 pCi/L
 2/8 SYR4 2014–2017
Nitrate-Nitrite
300 µg/L 3%
of the EPA limit 10000 µg/L
 2/19 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
11.5 µg/L 19%
of the EPA limit 60 µg/L
 2/20 SYR4 2012–2019
Bromodichloromethane
7 µg/L
No EPA limit set
 1/44 SYR4 2012–2019
Chloroform
13.1 µg/L
No EPA limit set
 1/44 SYR4 2012–2019
Di(2-ethylhexyl) Phthalate
0.6300 µg/L 11%
of the EPA limit 6 µg/L
 1/22 SYR4 2012–2019
Dichloroacetic Acid
7.3 µg/L
No EPA limit set
 1/20 SYR4 2012–2019
Selenium
3.3 µg/L 6.6%
of the EPA limit 50 µg/L
 1/12 SYR4 2014–2018
Trichloroacetic Acid
2.3 µg/L
No EPA limit set
 1/20 SYR4 2012–2019
81 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 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BENTON, WILLIAM, T
Phone
832-595-3300

Frequently asked questions about City of Rosenberg

Is City of Rosenberg tap water safe to drink?

EPA monitoring detected 28 contaminants in City of Rosenberg'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 Rosenberg's water?

EPA monitoring detected Copper, Lead, Nitrate, Lead, Fluoride, and others. The full list with the level and data source for each is above.

How many people does City of Rosenberg serve?

City of Rosenberg reports serving 43,158 people in Texas, per its EPA record.

Has City of Rosenberg had any water quality violations?

The EPA has 22 violations on file for City of Rosenberg, 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.