Water Quality in St Michaels, AZ (86511)

EPA violation data for public water systems serving ZIP code 86511.

No Health-Based Violations

None of the 2 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are74 monitoring/reporting violations (missed testing deadlines), all resolved.

Better than 94% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

3,583

Population

2

Water Systems

74

Violations (5yr)

0

Health-Based

Location

Loading map...

Water Systems Serving This Area (2)

St Michael Indian School

Groundwater 585 people served
60 violations (5yr)

Hunters Point Boarding School Bia

Groundwater 173 people served
14 violations (5yr)
Lead tested: 11 ppb (limit: 15 ppb)

Contaminants Found

Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

43 violations
Has active
Public NoticeMonitoring
18 violations
Has active
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

5 violations
Has active
NitriteMonitoring

Similar to nitrate — harmful to infants at high levels.

2 violations
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

2 violations
All resolved
TTHMMonitoring
1 violation
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

1 violation
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Approaching limit
11 ppb measured Action level: 15 ppb

Sampled: Jul 2022

How Does This Compare?

St Michaels (86511) has more violations than 94% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 74, most of which are monitoring/reporting issues.

Fewer violations 94th percentile More violations

Water Filter Recommendations

No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.

Nearby ZIP Codes

Check Another ZIP Code