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Tap water quality report

Harris County Wcid 116

EPA monitoring tested this supplier for 108 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
24
detected
3,627
people served
3
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Ground water
Ownership
Local government
Counties served
Harris

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.

3
health-based violations
20
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2009-07-01 → 2009-09-30
MCL Health-based Resolved 2009-07-01 → 2009-09-30
MCL Health-based Resolved 2009-07-01 → 2009-09-30
MR Monitoring Resolved 2022-07-01
MR Monitoring Resolved 2022-07-01
MR Monitoring Resolved 2022-07-01
MR Monitoring Resolved 2022-07-01
MR Monitoring Resolved 2022-01-01 → 2022-06-30
MR Monitoring Resolved 2022-01-01 → 2022-06-30
MR Monitoring Resolved 2022-01-01 → 2022-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0094 µg/L 1/2 2023
PFBS 0.0031 µg/L 1/2 2023
Pfhxa 0.0050 µg/L 1/2 2023
Pfpea 0.0065 µg/L 1/2 2023

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
312.1 µg/L 24%
of the EPA limit 1300 µg/L
 42/44 SYR4 2014–2017
Lead
12.3 µg/L 82%
of the EPA limit 15 µg/L
 21/44 SYR4 2014–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2023
Bromodichloromethane
3.7 µg/L
No EPA limit set
 16/17 SYR4 2012–2019
Chloroform
26.1 µg/L
No EPA limit set
 16/17 SYR4 2012–2019
Nitrate
980 µg/L 9.8%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Dichloroacetic Acid
28.7 µg/L
No EPA limit set
 7/7 SYR4 2013–2019
TTHM
28.8 µg/L 36%
of the EPA limit 80 µg/L
 7/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
37.4 µg/L 62%
of the EPA limit 60 µg/L
 7/7 SYR4 2013–2019
Trichloroacetic Acid
5.2 µg/L
No EPA limit set
 7/7 SYR4 2013–2019
Monochloroacetic Acid
3.5 µg/L
No EPA limit set
 4/7 SYR4 2013–2019
Arsenic
3 µg/L 30%
of the EPA limit 10 µg/L
 3/24 SYR4 2012–2017
Dibromochloromethane
1 µg/L
No EPA limit set
 3/17 SYR4 2012–2019
Nitrate-Nitrite
1060 µg/L 11%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2015
Nitrite
80 µg/L 8%
of the EPA limit 1000 µg/L
 3/3 SYR4 2012–2015
Barium
159 µg/L 8%
of the EPA limit 2000 µg/L
 2/2 SYR4 2014–2017
Atrazine
0.7200 µg/L 24%
of the EPA limit 3 µg/L
 1/2 SYR4 2015–2018
Cyanide
120 µg/L 60%
of the EPA limit 200 µg/L
 1/2 SYR4 2014–2017
Fluoride
170 µg/L 4.3%
of the EPA limit 4000 µg/L
 1/2 SYR4 2014–2017
Xylenes, Total
0.8000 µg/L 0%
of the EPA limit 10000 µg/L
 1/10 SYR4 2012–2019
84 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, TotalAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GRIFFITH, LES
Phone
713-237-1221

Frequently asked questions about Harris County Wcid 116

Is Harris County Wcid 116 tap water safe to drink?

EPA monitoring detected 24 contaminants in Harris County Wcid 116'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 Harris County Wcid 116's water?

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

How many people does Harris County Wcid 116 serve?

Harris County Wcid 116 reports serving 3,627 people in Texas, per its EPA record.

Has Harris County Wcid 116 had any water quality violations?

The EPA has 20 violations on file for Harris County Wcid 116, of which 3 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.