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Tap water quality report

Tanglewood Forest Subdivision

EPA monitoring tested this supplier for 79 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
12
detected
118
people served
174
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Ground water
Ownership
Private
Counties served
San Jacinto

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.

174
health-based violations
221
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2021-10-01 → 2021-12-31
MCL Health-based Resolved 2021-10-01 → 2021-12-31
MCL Health-based Resolved 2021-10-01 → 2021-12-31
MCL Health-based Resolved 2021-10-01 → 2021-12-31
MCL Health-based Resolved 2021-10-01 → 2021-12-31
MCL Health-based Resolved 2021-10-01 → 2021-12-31
MCL Health-based Resolved 2021-07-01 → 2021-09-30
MCL Health-based Resolved 2021-07-01 → 2021-09-30
MCL Health-based Resolved 2021-07-01 → 2021-09-30
MCL Health-based Resolved 2021-07-01 → 2021-09-30

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
Arsenic
10 µg/L 100%
of the EPA limit 10 µg/L
 21/21 SYR4 2012–2019
Gross Beta Particle Activity
47.5 pCi/L
No EPA limit set
 21/21 SYR4 2012–2017
Combined Radium (-226 And -228)
25.8 pCi/L 516%
of the EPA limit, in the worst sample — 5 pCi/L
 20/20 SYR4 2012–2017
Gross Alpha, Excl. Radon And U
110 pCi/L 733%
of the EPA limit, in the worst sample — 15 pCi/L
 20/21 SYR4 2012–2017
Copper
319 µg/L 25%
of the EPA limit 1300 µg/L
 12/14 SYR4 2013–2017
Nitrate
20 µg/L 0.2%
of the EPA limit 10000 µg/L
 6/16 SYR4 2012–2019
Barium
354 µg/L 18%
of the EPA limit 2000 µg/L
 3/3 SYR4 2013–2019
Fluoride
240 µg/L 6%
of the EPA limit 4000 µg/L
 2/3 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 2/2 LCR 2024
Lead
1.76 µg/L 12%
of the EPA limit 15 µg/L
 2/14 SYR4 2013–2017
Cyanide
20 µg/L 10%
of the EPA limit 200 µg/L
 1/3 SYR4 2013–2019
Combined Uranium
1.2 µg/L 4%
of the EPA limit 30 µg/L
 1/21 SYR4 2012–2017
67 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
THOMAS, CAREY, A
Phone
713-574-5953
Email
CTHOMAS@UNDINELLC.COM

Frequently asked questions about Tanglewood Forest Subdivision

Is Tanglewood Forest Subdivision tap water safe to drink?

EPA monitoring detected 12 contaminants in Tanglewood Forest Subdivision'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 Tanglewood Forest Subdivision's water?

EPA monitoring detected Arsenic, Gross Beta Particle Activity, Combined Radium (-226 And -228), Gross Alpha, Excl. Radon And U, Copper, and others. The full list with the level and data source for each is above.

How many people does Tanglewood Forest Subdivision serve?

Tanglewood Forest Subdivision reports serving 118 people in Texas, per its EPA record.

Has Tanglewood Forest Subdivision had any water quality violations?

The EPA has 221 violations on file for Tanglewood Forest Subdivision, of which 174 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.