Is Cornerstone Mobile Home Community Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MR	Monitoring	Resolved	2014-12-30
MR	Monitoring	Resolved	2014-12-30
MR	Monitoring	Resolved	2003-09-01 → 2003-09-30
MR	Monitoring	Resolved	2003-09-01 → 2003-09-30
MR	Monitoring	Resolved	2003-09-01 → 2003-09-30
MR	Monitoring	Resolved	2003-09-01 → 2003-09-30

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 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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	2640 µg/L 26% of the EPA limit 10000 µg/L	16/16	SYR4	2012–2019
Copper	124 µg/L 9.5% of the EPA limit 1300 µg/L worst single sample: 150 µg/L	14/22	SYR4	2014–2019
Lead	14.02 µg/L 93% of the EPA limit 15 µg/L worst single sample: 16 µg/L	7/22	SYR4	2014–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	3/3	LCR	2025
Nitrate-Nitrite	2497 µg/L 25% of the EPA limit 10000 µg/L worst single sample: 2510 µg/L	3/3	SYR4	2012–2015
Barium	96.86 µg/L 4.8% of the EPA limit 2000 µg/L worst single sample: 97 µg/L	2/2	SYR4	2014–2017
Xylenes, Total	0.5950 µg/L 0% of the EPA limit 10000 µg/L worst single sample: 0.6000 µg/L	2/7	SYR4	2015–2019
Combined Radium (-226 And -228)	1 pCi/L 20% of the EPA limit 5 pCi/L	1/1	SYR4	2013
Fluoride	120 µg/L 3% of the EPA limit 4000 µg/L	1/3	SYR4	2013–2019

70 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, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: AMEZAGA, GILBERTO
Phone: 281-373-4401
Email: gilberto@flowatch.net

Frequently asked questions about Cornerstone Mobile Home Community

Is Cornerstone Mobile Home Community tap water safe to drink?

EPA monitoring detected 9 contaminants in Cornerstone Mobile Home Community'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 Cornerstone Mobile Home Community's water?

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

How many people does Cornerstone Mobile Home Community serve?

Cornerstone Mobile Home Community reports serving 81 people in Texas, per its EPA record.

Has Cornerstone Mobile Home Community had any water quality violations?

The EPA has 6 violations on file for Cornerstone Mobile Home Community, 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.