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Tap water quality report

Harris County Wcid 36

EPA monitoring tested this supplier for 108 contaminants and detected 29. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
29
detected
11,073
people served
4
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
SWP
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.

4
health-based violations
8
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2011-09-01 → 2011-09-30
MCL Health-based Resolved 2011-09-01 → 2011-09-30
MCL Health-based Resolved 2011-09-01 → 2011-09-30
MCL Health-based Resolved 2011-09-01 → 2011-09-30
MR Monitoring Resolved 2012-06-01
MR Monitoring Resolved 2012-06-01
MR Monitoring Resolved 2012-06-01
MR Monitoring Resolved 2012-06-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0057 µg/L 3/12 2025
Pfpea 0.0061 µg/L 3/12 2025
Pfba 0.0061 µg/L 1/12 2025
PFBS 0.0030 µg/L 1/12 2025
PFOS 0.0040 µg/L 1/12 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
TTHM
42.4 µg/L 53%
of the EPA limit 80 µg/L
 118/124 SYR4 2012–2019
Bromodichloromethane
13 µg/L
No EPA limit set
 111/130 SYR4 2012–2019
Dibromochloromethane
8.2 µg/L
No EPA limit set
 108/130 SYR4 2012–2019
Chloroform
38 µg/L
No EPA limit set
 106/130 SYR4 2012–2019
Dichloroacetic Acid
35.9 µg/L
No EPA limit set
 101/124 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
47 µg/L 78%
of the EPA limit 60 µg/L
 101/124 SYR4 2012–2019
Trichloroacetic Acid
10.7 µg/L
No EPA limit set
 100/124 SYR4 2012–2019
Copper
509 µg/L 39%
of the EPA limit 1300 µg/L
 65/96 SYR4 2013–2019
Dibromoacetic Acid
3 µg/L
No EPA limit set
 54/124 SYR4 2012–2019
Nitrate
780 µg/L 7.8%
of the EPA limit 10000 µg/L
 44/48 SYR4 2012–2019
Lead
15.9 µg/L 106%
of the EPA limit, in the worst sample — 15 µg/L
 42/96 SYR4 2013–2019
Bromoform
9.7 µg/L
No EPA limit set
 24/130 SYR4 2012–2019
Monochloroacetic Acid
7.4 µg/L
No EPA limit set
 22/124 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Atrazine
0.2400 µg/L 8%
of the EPA limit 3 µg/L
 9/12 SYR4 2014–2019
Lithium
15.4 µg/L
No EPA limit set
 9/12 UCMR-5 2025
Nitrate-Nitrite
400 µg/L 4%
of the EPA limit 10000 µg/L
 8/9 SYR4 2012–2015
Barium
147 µg/L 7.4%
of the EPA limit 2000 µg/L
 6/6 SYR4 2014–2017
Fluoride
660 µg/L 17%
of the EPA limit 4000 µg/L
 6/6 SYR4 2014–2017
Simazine
0.3600 µg/L 9%
of the EPA limit 4 µg/L
 6/12 SYR4 2014–2019
Cyanide
140 µg/L 70%
of the EPA limit 200 µg/L
 3/6 SYR4 2014–2017
Nitrite
10 µg/L 1%
of the EPA limit 1000 µg/L
 2/9 SYR4 2012–2015
Arsenic
2.2 µg/L 22%
of the EPA limit 10 µg/L
 1/6 SYR4 2014–2017
Monobromoacetic Acid
2.1 µg/L
No EPA limit set
 1/124 SYR4 2012–2019
79 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, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HOLDER, RONALD, S
Phone
713-453-5493
Email
Rholder42@aol.com

Frequently asked questions about Harris County Wcid 36

Is Harris County Wcid 36 tap water safe to drink?

EPA monitoring detected 29 contaminants in Harris County Wcid 36'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 36's water?

EPA monitoring detected TTHM, Bromodichloromethane, Dibromochloromethane, Chloroform, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Harris County Wcid 36 serve?

Harris County Wcid 36 reports serving 11,073 people in Texas, per its EPA record.

Has Harris County Wcid 36 had any water quality violations?

The EPA has 8 violations on file for Harris County Wcid 36, of which 4 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.