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Tap water quality report

Harris County Fwsd 47

EPA monitoring tested this supplier for 109 contaminants and detected 27. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
27
detected
4,250
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
14
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2015-04-01 → 2015-04-30
MCL Health-based Resolved 2015-04-01 → 2015-04-30
MCL Health-based Resolved 2015-04-01 → 2015-04-30
MCL Health-based Resolved 2015-04-01 → 2015-04-30
Other Monitoring Unaddressed 2025-07-01
Other Monitoring Resolved 2024-07-02
Other Monitoring Resolved 2024-07-02
Other Monitoring Resolved 2023-07-01
Other Monitoring Resolved 2023-07-01
MR Monitoring Resolved 2019-09-05

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0033 µg/L 2/4 2024
Pfba 0.0065 µg/L 1/4 2024
Pfpea 0.0036 µg/L 1/4 2024

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
Bromodichloromethane
13.2 µg/L
No EPA limit set
 63/67 SYR4 2012–2019
TTHM
46.1 µg/L 58%
of the EPA limit 80 µg/L
 62/62 SYR4 2012–2019
Dibromochloromethane
14.8 µg/L
No EPA limit set
 61/67 SYR4 2012–2019
Copper
230 µg/L 18%
of the EPA limit 1300 µg/L
 49/62 SYR4 2013–2017
Chloroform
31.4 µg/L
No EPA limit set
 46/67 SYR4 2012–2019
Bromoform
4.9 µg/L
No EPA limit set
 39/67 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
42.3 µg/L 71%
of the EPA limit 60 µg/L
 37/62 SYR4 2012–2019
Dichloroacetic Acid
30.4 µg/L
No EPA limit set
 32/62 SYR4 2012–2019
Dibromoacetic Acid
2.9 µg/L
No EPA limit set
 29/62 SYR4 2012–2019
Lead
16 µg/L 107%
of the EPA limit, in the worst sample — 15 µg/L
 27/62 SYR4 2013–2017
Trichloroacetic Acid
9.6 µg/L
No EPA limit set
 27/62 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Nitrate
620 µg/L 6.2%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Atrazine
0.2300 µg/L 7.7%
of the EPA limit 3 µg/L
 5/8 SYR4 2012–2019
Monochloroacetic Acid
3.1 µg/L
No EPA limit set
 4/62 SYR4 2012–2019
Barium
97 µg/L 4.9%
of the EPA limit 2000 µg/L
 3/3 SYR4 2016–2019
Nitrate-Nitrite
340 µg/L 3.4%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2015
Lithium
17 µg/L
No EPA limit set
 3/4 UCMR-5 2024
Arsenic
4.6 µg/L 46%
of the EPA limit 10 µg/L
 2/3 SYR4 2016–2019
Cyanide
130 µg/L 65%
of the EPA limit 200 µg/L
 2/2 SYR4 2014–2017
Fluoride
1070 µg/L 27%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 1/1 SYR4 2016
Nitrite
10 µg/L 1%
of the EPA limit 1000 µg/L
 1/3 SYR4 2012–2015
Simazine
0.3400 µg/L 8.5%
of the EPA limit 4 µg/L
 1/8 SYR4 2012–2019
82 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 EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HAMALA, DENNIS
Phone
713-453-4909

Frequently asked questions about Harris County Fwsd 47

Is Harris County Fwsd 47 tap water safe to drink?

EPA monitoring detected 27 contaminants in Harris County Fwsd 47'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 Fwsd 47's water?

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

How many people does Harris County Fwsd 47 serve?

Harris County Fwsd 47 reports serving 4,250 people in Texas, per its EPA record.

Has Harris County Fwsd 47 had any water quality violations?

The EPA has 14 violations on file for Harris County Fwsd 47, of which 4 are health-based (a contaminant limit or required treatment was breached) and 1 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.