Is County Line Sud Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
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	Resolved	2025-07-01
Other	Monitoring	Resolved	2025-07-01
MR	Monitoring	Resolved	2025-04-01
MR	Monitoring	Resolved	2025-04-01
MR	Monitoring	Resolved	2023-12-30
MR	Monitoring	Resolved	2023-12-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfpea	0.0045 µg/L	2/5	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 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
Copper	1400 µg/L 108% of the EPA limit, at the 95th percentile of samples — 1300 µg/L worst single sample: 2300 µg/L	79/81	SYR4	2014–2019
Dibromochloromethane	16.025 µg/L No EPA limit set worst single sample: 26 µg/L	54/67	SYR4	2012–2019
TTHM	53.7 µg/L 67% of the EPA limit 80 µg/L worst single sample: 157 µg/L	53/62	SYR4	2012–2019
Bromodichloromethane	18.495 µg/L No EPA limit set worst single sample: 40.1 µg/L	52/67	SYR4	2012–2019
Lead	6.05 µg/L 40% of the EPA limit 15 µg/L worst single sample: 17 µg/L	42/81	SYR4	2014–2019
Dichloroacetic Acid	12.625 µg/L No EPA limit set worst single sample: 54.4 µg/L	38/62	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	30.835 µg/L 51% of the EPA limit 60 µg/L worst single sample: 76.3 µg/L	38/62	SYR4	2012–2019
Chloroform	21.05 µg/L No EPA limit set worst single sample: 90.9 µg/L	36/67	SYR4	2012–2019
Bromoform	5.85 µg/L No EPA limit set worst single sample: 9.9 µg/L	34/67	SYR4	2012–2019
Dibromoacetic Acid	7.6 µg/L No EPA limit set worst single sample: 8.7 µg/L	27/62	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	17/17	LCR	2025
Monochloroacetic Acid	10.38 µg/L No EPA limit set worst single sample: 12.3 µg/L	9/62	SYR4	2012–2019
Trichloroacetic Acid	7.23 µg/L No EPA limit set worst single sample: 7.8 µg/L	7/62	SYR4	2012–2019
Barium	67.125 µg/L 3.4% of the EPA limit 2000 µg/L worst single sample: 67.2 µg/L	2/2	SYR4	2016–2019
Fluoride	3115 µg/L 78% of the EPA limit 4000 µg/L worst single sample: 3120 µg/L	2/2	SYR4	2014–2017
Monobromoacetic Acid	1.58 µg/L No EPA limit set worst single sample: 1.6 µg/L	2/62	SYR4	2012–2019
Nitrate	30 µg/L 0.3% of the EPA limit 10000 µg/L	2/16	SYR4	2012–2019
Lithium	11.9 µg/L No EPA limit set	2/5	UCMR-5	2025
Cyanide	20 µg/L 10% of the EPA limit 200 µg/L	1/2	SYR4	2014–2017
Combined Radium (-226 And -228)	1.1 pCi/L 22% of the EPA limit 5 pCi/L	1/2	SYR4	2012–2018
Gross Alpha, Excl. Radon And U	5.5 pCi/L 37% of the EPA limit 15 pCi/L	1/1	SYR4	2018
Gross Beta Particle Activity	5.6 pCi/L No EPA limit set	1/2	SYR4	2012–2018

86 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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: NAJDAWI, FARAH
Phone: 512-398-4748

Frequently asked questions about County Line Sud

Is County Line Sud tap water safe to drink?

EPA monitoring detected 23 contaminants in County Line Sud'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 County Line Sud's water?

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

How many people does County Line Sud serve?

County Line Sud reports serving 19,609 people in Texas, per its EPA record.

Has County Line Sud had any water quality violations?

The EPA has 26 violations on file for County Line Sud, of which 4 are health-based (a contaminant limit or required treatment was breached) and 3 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.