Is Conroe, TX Tap Water Safe? Quality & Contaminants

What was found in Conroe'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	485 µg/L 37% of the EPA limit 1300 µg/L Main supplier: CITY OF CONROE · 113,912 people · 2017 Highest in the city: 1085.9999999999989 µg/L — GRAND HARBOR WATER SYSTEM · 2,370 people · 2018	27/31	SYR4
Fluoride	648 µg/L 16% of the EPA limit 4000 µg/L Highest in the city: SJRA THE WOODLANDS · 0 people · 2019	26/31	SYR4
Nitrate	490 µg/L 4.9% of the EPA limit 10000 µg/L Highest in the city: SJRA GRP SW TREATMENT PLANT · 25 people · 2019	23/31	SYR4
Barium	369 µg/L 18% of the EPA limit 2000 µg/L Highest in the city: FALLS OF WILDWOOD · 54 people · 2017	27/31	SYR4
Nitrate-Nitrite	187.5 µg/L 1.9% of the EPA limit 10000 µg/L Highest in the city: CHATEAU WOODS MUD WATER SYSTEM · 2,700 people · 2019	17/31	SYR4
Lithium	138 µg/L No EPA limit set Main supplier: CITY OF CONROE · 113,912 people · 2025	1/31	UCMR-5
TTHM	19.164999999999996 µg/L 24% of the EPA limit 80 µg/L Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 67.46999999999997 µg/L — SJRA THE WOODLANDS · 0 people · 2019	15/31	SYR4
Chloroform	24.799999999999983 µg/L No EPA limit set Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 46.39999999999999 µg/L — SJRA THE WOODLANDS · 0 people · 2019	13/31	SYR4
Xylenes, Total	31 µg/L 0.3% of the EPA limit 10000 µg/L Highest in the city: LAKEWOOD ON LAKE CONROE POA · 96 people · 2019	8/31	SYR4
Total Haloacetic Acids (HAA5)	9.75 µg/L 16% of the EPA limit 60 µg/L Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 19.58 µg/L — SJRA THE WOODLANDS · 0 people · 2019	8/31	SYR4
Gross Beta Particle Activity	19.11 pCi/L No EPA limit set Highest in the city: DEER RUN · 372 people · 2018	24/31	SYR4
Bromodichloromethane	9.959999999999994 µg/L No EPA limit set Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 19 µg/L — SJRA THE WOODLANDS · 0 people · 2019	15/31	SYR4
Lead	11 µg/L 73% of the EPA limit 15 µg/L Main supplier: CITY OF CONROE · 113,912 people · 2017 Highest in the city: 16.999999999999993 µg/L — CANEY CREEK UTILITY · 153 people · 2018	26/31	SYR4
Gross Alpha, Excl. Radon And U	16.520000000000003 pCi/L 110% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Highest in the city: A & S WATER SERVICES · 52 people · 2019	21/31	SYR4
Dibromochloromethane	7.7349999999999985 µg/L No EPA limit set Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 13.22999999999999 µg/L — SJRA THE WOODLANDS · 0 people · 2019	16/31	SYR4
Dichloroacetic Acid	5.379999999999999 µg/L No EPA limit set Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 11.069999999999999 µg/L — SJRA THE WOODLANDS · 0 people · 2019	4/31	SYR4
Bromoform	7.8799999999999955 µg/L No EPA limit set Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 9.819999999999999 µg/L — MILLERS CROSSING · 159 people · 2019	16/31	SYR4
Trichloroacetic Acid	3.7399999999999998 µg/L No EPA limit set Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 6.5 µg/L — SJRA THE WOODLANDS · 0 people · 2019	3/31	SYR4
Selenium	6.35 µg/L 13% of the EPA limit 50 µg/L Highest in the city: DOMESTIC WATER COMPANY ROYAL FOREST SUBD · 1,667 people · 2019	10/31	SYR4
Di(2-ethylhexyl) Phthalate	5.9399999999999995 µg/L 99% of the EPA limit 6 µg/L Highest in the city: CANEY CREEK UTILITY · 153 people · 2019	4/31	SYR4
Arsenic	4.949999999999999 µg/L 49% of the EPA limit 10 µg/L Highest in the city: DOMESTIC WATER COMPANY ROYAL FOREST SUBD · 1,667 people · 2019	13/31	SYR4
Combined Radium (-226 And -228)	4.372999999999999 pCi/L 87% of the EPA limit 5 pCi/L Highest in the city: HARBORSIDE · 432 people · 2019	22/31	SYR4
Ethylbenzene	3 µg/L 0.4% of the EPA limit 700 µg/L Highest in the city: LAKEWOOD ON LAKE CONROE POA · 96 people · 2019	3/31	SYR4
Dibromoacetic Acid	1.575 µg/L No EPA limit set Main supplier: CITY OF CONROE · 113,912 people · 2019 Highest in the city: 2.335 µg/L — SJRA THE WOODLANDS · 0 people · 2019	6/31	SYR4
Combined Uranium	2.3 µg/L 7.7% of the EPA limit 30 µg/L Highest in the city: FALLS OF WILDWOOD · 54 people · 2017	3/31	SYR4
Monochloroacetic Acid	2 µg/L No EPA limit set Highest in the city: LAKEVIEW POINTE APARTMENTS · 44 people · 2019	1/31	SYR4
Carbon Tetrachloride	1.7799999999999998 µg/L 36% of the EPA limit 5 µg/L Highest in the city: EMERALD LAKES SUBDIVISION · 1,053 people · 2019	1/31	SYR4
Dalapon	1.4 µg/L 0.7% of the EPA limit 200 µg/L Highest in the city: SJRA THE WOODLANDS · 0 people · 2019	1/31	SYR4
Toluene	0.6000 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: LAKEWOOD ON LAKE CONROE POA · 96 people · 2019	1/31	SYR4
2,4-D	0.4000 µg/L 0.6% of the EPA limit 70 µg/L Highest in the city: GRAND HARBOR WATER SYSTEM · 2,370 people · 2019	1/31	SYR4
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF CONROE · 113,912 people · 2025 Highest in the city: 0.0053 mg/L — DEER RUN · 372 people · 2023	30/31	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 Conroe

Supplier	Population served
CITY OF CONROE	113,912
RIVERWALK SUBDIVISION	2,820
CHATEAU WOODS MUD WATER SYSTEM	2,700
GRAND HARBOR WATER SYSTEM	2,370
EAST PLANTATION UTILITY DISTRICT	1,896
DOMESTIC WATER COMPANY ROYAL FOREST SUBD	1,667
THOUSAND OAKS	1,158
EMERALD LAKES SUBDIVISION	1,053
RIO VISTA SUBDIVISION	942
TOWN OF WOODLOCH	747
DEER TRAIL WATER DISTRICT	693
LEXINGTON HEIGHTS SUBDIVISION	681
LAKE SOUTH WSC	628
TEXABA SUBDIVISION	590
LAKE FOREST FALLS SUBDIVISION	567
DEER PINES SUBDIVISION	558
SUNRISE RANCH	468
HARBORSIDE	432
DEER RUN	372
LAKELAND WATER SYSTEM	303
OLD MILL LAKE	300
SETTLERS CROSSING	240
MILLERS CROSSING	159
CANEY CREEK UTILITY	153
MEACHEN MEADOWS SUBDIVISION WATER SYSTEM	132
LAKEWOOD ON LAKE CONROE POA	96
FALLS OF WILDWOOD	54
A & S WATER SERVICES	52
LAKEVIEW POINTE APARTMENTS	44
SJRA GRP SW TREATMENT PLANT	25
SJRA THE WOODLANDS	0

Frequently asked questions about Conroe tap water

Is Conroe tap water safe to drink?

EPA testing detected 31 contaminants in the water serving Conroe. 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 Conroe?

31 public water suppliers report drinking-water monitoring for Conroe, Texas to the EPA. Each is listed above with its population served.

What contaminants are in Conroe's water?

The contaminants EPA monitoring detected in Conroe include Copper, Fluoride, Nitrate, Barium, 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.