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Tap water quality report

The Grand Acres

EPA monitoring tested this supplier for 73 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
12
detected
153
people served
4
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Mixed public/private
Counties served
Santa Cruz

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.

4
health-based violations
138
violations on file
8
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
TT Health-based Unaddressed 2024-10-17
TT Health-based Unaddressed 2024-10-17
MCL Health-based Resolved 2008-08-01 → 2008-08-31
MR Monitoring Resolved 2025-11-01 → 2025-11-30
MR Monitoring Resolved 2025-11-01 → 2025-11-30
MR Monitoring Resolved 2025-11-01 → 2025-11-30
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Resolved 2025-10-01 → 2025-10-31

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
Nitrate
6700.5 µg/L 67%
of the EPA limit 10000 µg/L
worst single sample: 7100 µg/L
38/38 SYR4 2012–2019
Nitrate-Nitrite
6360.5 µg/L 64%
of the EPA limit 10000 µg/L
worst single sample: 6630 µg/L
12/12 SYR4 2014–2017
Copper
1184 µg/L 91%
of the EPA limit 1300 µg/L
worst single sample: 1610 µg/L
11/16 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2022
Arsenic
10.255 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 10.3 µg/L
4/4 SYR4 2014–2017
Lead
5.59 µg/L 37%
of the EPA limit 15 µg/L
worst single sample: 6.1 µg/L
4/16 SYR4 2013–2019
TTHM
2.82 µg/L 3.5%
of the EPA limit 80 µg/L
worst single sample: 2.9 µg/L
3/4 SYR4 2012–2018
Barium
31.75 µg/L 1.6%
of the EPA limit 2000 µg/L
worst single sample: 32 µg/L
2/2 SYR4 2014–2017
Fluoride
307 µg/L 7.7%
of the EPA limit 4000 µg/L
worst single sample: 310 µg/L
2/2 SYR4 2014–2017
Tetrachloroethylene
0.6720 µg/L 13%
of the EPA limit 5 µg/L
worst single sample: 0.6800 µg/L
2/7 SYR4 2012–2019
Combined Uranium
2.1 µg/L 7%
of the EPA limit 30 µg/L
 1/1 SYR4 2013
Total Haloacetic Acids (HAA5)
1.4 µg/L 2.3%
of the EPA limit 60 µg/L
 1/4 SYR4 2012–2018
61 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MCPHERSON, SCOTT
Phone
520-220-8840
Email
[email protected]

Frequently asked questions about The Grand Acres

Is The Grand Acres tap water safe to drink?

EPA monitoring detected 12 contaminants in The Grand Acres'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 The Grand Acres's water?

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

How many people does The Grand Acres serve?

The Grand Acres reports serving 153 people in Arizona, per its EPA record.

Has The Grand Acres had any water quality violations?

The EPA has 138 violations on file for The Grand Acres, of which 4 are health-based (a contaminant limit or required treatment was breached) and 8 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.