Water Quality in Nogales, AZ (85640)
EPA violation data for public water systems serving ZIP code 85640.
Active Health Violations
3 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 89% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
207
Population
13
Water Systems
42
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (13)
Nogales City Of
2 health-basedLiberty Water Rio Rico
All resolvedSanta Cruz Vly Sch-Tubac
Tumacacori National Historic Park
Wisdom Cafe
Mountain View Rv Ranch
1 health-basedTumacacori Mission Restaurant
Tubac Trailer Tether
Granada Mhp
Rancho Santa Cruz
Old Tumacacori Bar
All resolvedTumacacori Mission Restau
Mt Hopkins-Smithsonian Inst
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
A naturally occurring element that can cause cancer and other health effects at high levels.
Used to disinfect water — generally safe at regulated levels.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2022
How Does This Compare?
Nogales (85640) has more violations than 89% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 42.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.