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Liberty Water Rio Rico

EPA monitoring tested this supplier for 104 contaminants and detected 23. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
23
detected
17,960
people served
5
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
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.

5
health-based violations
479
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Archived 1980-07-23 → 1980-09-22
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
RPT Monitoring Resolved 2024-08-01
RPT Monitoring Resolved 2024-08-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0200 µg/L 6/12 2024
PFHXS 0.0109 µg/L 6/12 2024
PFOS 0.0409 µg/L 6/12 2024
PFOA 0.0100 µg/L 4/12 2024
Pfba 0.0070 µg/L 3/12 2024
Pfhxa 0.0040 µg/L 1/12 2024
Pfpea 0.0030 µg/L 1/12 2024

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
Copper
210 µg/L 16%
of the EPA limit 1300 µg/L
worst single sample: 390 µg/L
94/94 SYR4 2013–2018
Nitrate
2900 µg/L 29%
of the EPA limit 10000 µg/L
worst single sample: 3400 µg/L
88/92 SYR4 2012–2019
Lead
7.25 µg/L 48%
of the EPA limit 15 µg/L
worst single sample: 47 µg/L
71/94 SYR4 2013–2018
TTHM
7.6095 µg/L 9.5%
of the EPA limit 80 µg/L
worst single sample: 13 µg/L
62/74 SYR4 2012–2019
Lithium
20.2 µg/L
No EPA limit set
 12/12 UCMR-5 2024
Arsenic
5.715 µg/L 57%
of the EPA limit 10 µg/L
worst single sample: 6.3 µg/L
10/10 SYR4 2013–2019
Combined Uranium
14.74 µg/L 49%
of the EPA limit 30 µg/L
worst single sample: 15.9 µg/L
9/9 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 9/9 LCR 2024
Nitrate-Nitrite
2065 µg/L 21%
of the EPA limit 10000 µg/L
worst single sample: 2100 µg/L
8/8 SYR4 2013–2019
Chromium
2.05 µg/L 2.1%
of the EPA limit 100 µg/L
worst single sample: 2.1 µg/L
6/10 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
1.975 pCi/L 13%
of the EPA limit 15 pCi/L
worst single sample: 2.2 pCi/L
6/9 SYR4 2013–2019
Di(2-ethylhexyl) Phthalate
1.24 µg/L 21%
of the EPA limit 6 µg/L
worst single sample: 1.3 µg/L
5/57 SYR4 2012–2019
Barium
69.7 µg/L 3.5%
of the EPA limit 2000 µg/L
worst single sample: 70 µg/L
2/10 SYR4 2013–2019
Xylenes, Total
4.445 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 4.5 µg/L
2/24 SYR4 2012–2019
Dichloromethane
1.4 µg/L 28%
of the EPA limit 5 µg/L
 1/24 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
2.3 µg/L 3.8%
of the EPA limit 60 µg/L
 1/74 SYR4 2012–2019
81 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HENDERSON, MATTHEW
Phone
520-266-1169
Email
[email protected]

Frequently asked questions about Liberty Water Rio Rico

Is Liberty Water Rio Rico tap water safe to drink?

EPA monitoring detected 23 contaminants in Liberty Water Rio Rico'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 Liberty Water Rio Rico's water?

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

How many people does Liberty Water Rio Rico serve?

Liberty Water Rio Rico reports serving 17,960 people in Arizona, per its EPA record.

Has Liberty Water Rio Rico had any water quality violations?

The EPA has 479 violations on file for Liberty Water Rio Rico, of which 5 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.