Is Tempe Wsc 1 Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Polk

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.

1,536

health-based violations

1,952

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30

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
Arsenic	19.725 µg/L 197% of the EPA limit, at the 95th percentile of samples — 10 µg/L worst single sample: 23.2 µg/L	64/71	SYR4	2012–2019
Gross Beta Particle Activity	19.275 pCi/L No EPA limit set worst single sample: 22.6 pCi/L	64/65	SYR4	2012–2019
Combined Radium (-226 And -228)	19 pCi/L 380% of the EPA limit, at the 95th percentile of samples — 5 pCi/L worst single sample: 19.7 pCi/L	61/62	SYR4	2012–2019
Gross Alpha, Excl. Radon And U	69.91 pCi/L 466% of the EPA limit, at the 95th percentile of samples — 15 pCi/L worst single sample: 75.6 pCi/L	55/60	SYR4	2012–2019
Nitrate	60 µg/L 0.6% of the EPA limit 10000 µg/L	54/64	SYR4	2012–2019
Copper	342 µg/L 26% of the EPA limit 1300 µg/L worst single sample: 550 µg/L	25/28	SYR4	2012–2018
Bromoform	3.09 µg/L No EPA limit set worst single sample: 3.9 µg/L	19/39	SYR4	2012–2019
Dibromochloromethane	3.68 µg/L No EPA limit set worst single sample: 4.7 µg/L	18/39	SYR4	2012–2019
Barium	869 µg/L 43% of the EPA limit 2000 µg/L worst single sample: 877 µg/L	11/11	SYR4	2012–2019
Bromodichloromethane	3.05 µg/L No EPA limit set worst single sample: 3.2 µg/L	11/39	SYR4	2012–2019
Fluoride	638 µg/L 16% of the EPA limit 4000 µg/L worst single sample: 650 µg/L	9/11	SYR4	2012–2018
Nitrate-Nitrite	50 µg/L 0.5% of the EPA limit 10000 µg/L	8/12	SYR4	2012–2019
Chloroform	4.49 µg/L No EPA limit set worst single sample: 4.7 µg/L	7/39	SYR4	2012–2019
Dibromoacetic Acid	5.67 µg/L No EPA limit set worst single sample: 6.3 µg/L	7/10	SYR4	2013–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	7/7	LCR	2024
TTHM	5.57 µg/L 7% of the EPA limit 80 µg/L worst single sample: 6.2 µg/L	7/10	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	5.67 µg/L 9.5% of the EPA limit 60 µg/L worst single sample: 6.3 µg/L	7/10	SYR4	2013–2019
Lead	10.35 µg/L 69% of the EPA limit 15 µg/L worst single sample: 12.4 µg/L	6/28	SYR4	2012–2018
Selenium	9.14 µg/L 18% of the EPA limit 50 µg/L worst single sample: 9.8 µg/L	3/11	SYR4	2012–2019
Xylenes, Total	1.165 µg/L 0% of the EPA limit 10000 µg/L worst single sample: 1.2 µg/L	2/29	SYR4	2012–2019

59 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: WALZEL, CINDY
Phone: 936-328-5702

Frequently asked questions about Tempe Wsc 1

Is Tempe Wsc 1 tap water safe to drink?

EPA monitoring detected 20 contaminants in Tempe Wsc 1'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 Tempe Wsc 1's water?

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

How many people does Tempe Wsc 1 serve?

Tempe Wsc 1 reports serving 2,725 people in Texas, per its EPA record.

Has Tempe Wsc 1 had any water quality violations?

The EPA has 1952 violations on file for Tempe Wsc 1, of which 1536 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.