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Tap water quality report

Sierra West Subdivision

EPA monitoring tested this supplier for 79 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
15
detected
495
people served
0
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Ground water
Ownership
Private
Counties served
Hays

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.

0
health-based violations
26
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2022-06-01 → 2022-11-30
MR Monitoring Resolved 2022-06-01 → 2022-11-30
MR Monitoring Resolved 2022-06-01 → 2022-11-30
MR Monitoring Resolved 2022-06-01 → 2022-11-30
Other Monitoring Resolved 2020-01-09
Other Monitoring Resolved 2020-01-09
MR Monitoring Resolved 2018-10-01
MR Monitoring Resolved 2018-10-01
MR Monitoring Resolved 2018-10-01
MR Monitoring Resolved 2018-10-01

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
171 µg/L 13%
of the EPA limit 1300 µg/L
worst single sample: 665 µg/L
21/22 SYR4 2013–2019
Lead
9.595 µg/L 64%
of the EPA limit 15 µg/L
worst single sample: 14.1 µg/L
18/22 SYR4 2013–2019
Nitrate
70 µg/L 0.7%
of the EPA limit 10000 µg/L
 12/16 SYR4 2012–2019
Lead
0.0069 mg/L 46%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2025
Barium
24.11 µg/L 1.2%
of the EPA limit 2000 µg/L
worst single sample: 24.2 µg/L
3/3 SYR4 2013–2019
Fluoride
1939 µg/L 48%
of the EPA limit 4000 µg/L
worst single sample: 1940 µg/L
3/3 SYR4 2013–2019
Nitrate-Nitrite
65 µg/L 0.7%
of the EPA limit 10000 µg/L
worst single sample: 70 µg/L
3/3 SYR4 2012–2015
Combined Radium (-226 And -228)
1.9915 pCi/L 40%
of the EPA limit 5 pCi/L
worst single sample: 2 pCi/L
2/2 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
9.125 pCi/L 61%
of the EPA limit 15 pCi/L
worst single sample: 9.2 pCi/L
2/2 SYR4 2013–2019
Gross Beta Particle Activity
11.64 pCi/L
No EPA limit set
worst single sample: 11.8 pCi/L
2/2 SYR4 2013–2019
Bromodichloromethane
1.2 µg/L
No EPA limit set
 1/7 SYR4 2015–2019
Chloroform
1 µg/L
No EPA limit set
 1/7 SYR4 2015–2019
Dibromochloromethane
1.2 µg/L
No EPA limit set
 1/7 SYR4 2015–2019
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
 1/3 SYR4 2013–2019
TTHM
3.4 µg/L 4.3%
of the EPA limit 80 µg/L
 1/2 SYR4 2016–2019
64 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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
FOLTZ, SCOT, W
Phone
512-990-4400
Email
[email protected]

Frequently asked questions about Sierra West Subdivision

Is Sierra West Subdivision tap water safe to drink?

EPA monitoring detected 15 contaminants in Sierra West 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 Sierra West Subdivision's water?

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

How many people does Sierra West Subdivision serve?

Sierra West Subdivision reports serving 495 people in Texas, per its EPA record.

Has Sierra West Subdivision had any water quality violations?

The EPA has 26 violations on file for Sierra West Subdivision, of which 0 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.