What's in Mariano Lake-Pinedale-Church Rock NTUA's water?
Mariano Lake-Pinedale-Church Rock NTUA has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 4,562, over 1,334 connections.
Mariano Lake-Pinedale-Church Rock NTUA's record against the rest of the country
Out of 12,903 systems in this dataset, Mariano Lake-Pinedale-Church Rock NTUA ranks 4,081th by violation burden (68th percentile) - 35 violations total, 4 health-baseds.
How Mariano Lake-Pinedale-Church Rock NTUA compares within AZ
Among the 199 AZ systems in this dataset, the average is 8.2 health-based violations - Mariano Lake-Pinedale-Church Rock NTUA's 4 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for Mariano Lake-Pinedale-Church Rock NTUA is from 2021-01-01 (health-based: 2010-01-10). Last reported to EPA: 06/23/2026.
What kind of problem, specifically
Mariano Lake-Pinedale-Church Rock NTUA's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
- Synthetic organic chemicals / pesticides / VOCs - flagged from: 1,2-DIBROMO-3-CHLOROPROPANE
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
Mariano Lake-Pinedale-Church Rock NTUA's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and Mariano Lake-Pinedale-Church Rock NTUA's customers' taps is household plumbing, invisible to a system-level record ranked 4,081th of 12,903 by violation count. The guide to what this data misses covers that gap.