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Tap water quality report

Second Mesa Day School - Bia

EPA monitoring tested this supplier for 71 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
9
detected
255
people served
34
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Federal government

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.

34
health-based violations
166
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-04-01 → 2024-06-30
MCL Health-based Resolved 2019-10-01 → 2019-12-31
MCL Health-based Resolved 2019-07-01 → 2019-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Arsenic
26.78 µg/L 268%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 110 µg/L
24/34 SYR4 2012–2019
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Nitrate
1570 µg/L 16%
of the EPA limit 10000 µg/L
 8/18 SYR4 2012–2019
TTHM
63.4 µg/L 79%
of the EPA limit 80 µg/L
worst single sample: 81.5 µg/L
6/8 SYR4 2012–2019
Fluoride
299 µg/L 7.5%
of the EPA limit 4000 µg/L
worst single sample: 300 µg/L
2/2 SYR4 2015–2018
Total Haloacetic Acids (HAA5)
5.25 µg/L 8.8%
of the EPA limit 60 µg/L
worst single sample: 5.4 µg/L
2/7 SYR4 2012–2019
Combined Uranium
4.172 µg/L 14%
of the EPA limit 30 µg/L
 1/1 SYR4 2015
Gross Alpha, Excl. Radon And U
2.8 pCi/L 19%
of the EPA limit 15 pCi/L
 1/1 SYR4 2015
Selenium
2.8 µg/L 5.6%
of the EPA limit 50 µg/L
 1/2 SYR4 2015–2018
62 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Kimberly Thomas
Email
[email protected]

Frequently asked questions about Second Mesa Day School - Bia

Is Second Mesa Day School - Bia tap water safe to drink?

EPA monitoring detected 9 contaminants in Second Mesa Day School - Bia'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 Second Mesa Day School - Bia's water?

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

How many people does Second Mesa Day School - Bia serve?

Second Mesa Day School - Bia reports serving 255 people in Arizona, per its EPA record.

Has Second Mesa Day School - Bia had any water quality violations?

The EPA has 166 violations on file for Second Mesa Day School - Bia, of which 34 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.