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Tap water quality report

Marana Municipal - Picture Rocks

EPA monitoring tested this supplier for 110 contaminants and detected 23. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
23
detected
5,278
people served
0
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Local government
Counties served
Pima

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.

0
health-based violations
98
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2021-07-01 → 2021-09-30
MR Monitoring Resolved 2021-07-01 → 2021-09-30
Other Monitoring Resolved 2017-07-01
MR Monitoring Resolved 2015-09-01 → 2015-09-30
MR Monitoring Resolved 2015-09-01 → 2015-09-30
MR Monitoring Resolved 2010-10-01
MR Monitoring Resolved 2010-01-01 → 2010-12-31
MR Monitoring Resolved 2010-01-01 → 2010-12-31
Other Monitoring Resolved 2009-07-01
MR Monitoring Resolved 2008-04-01 → 2008-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0230 µg/L 2/2 2025
Pfhxa 0.0120 µg/L 2/2 2025
Pfpea 0.0160 µg/L 2/2 2025
PFBS 0.0078 µg/L 1/2 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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
537 µg/L 41%
of the EPA limit 1300 µg/L
worst single sample: 860 µg/L
67/67 SYR4 2013–2019
Lead
9.4 µg/L 63%
of the EPA limit 15 µg/L
worst single sample: 71.7 µg/L
37/67 SYR4 2013–2019
Nitrate
4300 µg/L 43%
of the EPA limit 10000 µg/L
 20/20 SYR4 2012–2019
TTHM
50.42 µg/L 63%
of the EPA limit 80 µg/L
worst single sample: 52.4 µg/L
13/13 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
11.2 µg/L 19%
of the EPA limit 60 µg/L
worst single sample: 13 µg/L
13/13 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Arsenic
5.325 µg/L 53%
of the EPA limit 10 µg/L
worst single sample: 5.4 µg/L
4/4 SYR4 2012–2018
Barium
50.55 µg/L 2.5%
of the EPA limit 2000 µg/L
worst single sample: 51 µg/L
4/4 SYR4 2012–2018
Fluoride
680 µg/L 17%
of the EPA limit 4000 µg/L
 4/4 SYR4 2012–2018
Bromodichloromethane
4.485 µg/L
No EPA limit set
worst single sample: 4.6 µg/L
2/2 SYR4 2019
Bromoform
19.7 µg/L
No EPA limit set
worst single sample: 20.2 µg/L
2/2 SYR4 2019
Chloroform
0.9750 µg/L
No EPA limit set
worst single sample: 1 µg/L
2/2 SYR4 2019
Dibromoacetic Acid
6.085 µg/L
No EPA limit set
worst single sample: 6.2 µg/L
2/2 SYR4 2019
Dibromochloromethane
15.885 µg/L
No EPA limit set
worst single sample: 16.3 µg/L
2/2 SYR4 2019
Nitrate-Nitrite
4160 µg/L 42%
of the EPA limit 10000 µg/L
worst single sample: 4200 µg/L
2/2 SYR4 2012–2015
Simazine
0.0598 µg/L 1.5%
of the EPA limit 4 µg/L
worst single sample: 0.0600 µg/L
2/8 SYR4 2012–2018
Lithium
80 µg/L
No EPA limit set
 2/2 UCMR-5 2025
Dichloroacetic Acid
1.2 µg/L
No EPA limit set
 1/2 SYR4 2019
Monobromoacetic Acid
1.2 µg/L
No EPA limit set
 1/2 SYR4 2019
87 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 TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ARVIZU, JOHNNY R
Phone
520-627-7209
Email
[email protected]

Frequently asked questions about Marana Municipal - Picture Rocks

Is Marana Municipal - Picture Rocks tap water safe to drink?

EPA monitoring detected 23 contaminants in Marana Municipal - Picture Rocks'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 Marana Municipal - Picture Rocks's water?

EPA monitoring detected Copper, Lead, Nitrate, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Marana Municipal - Picture Rocks serve?

Marana Municipal - Picture Rocks reports serving 5,278 people in Arizona, per its EPA record.

Has Marana Municipal - Picture Rocks had any water quality violations?

The EPA has 98 violations on file for Marana Municipal - Picture Rocks, of which 0 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.