Water Quality in Warren, MI (48041)

EPA violation data for public water systems serving ZIP code 48041.

No Health-Based Violations

None of the 19 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are23 monitoring/reporting violations (missed testing deadlines), all resolved.

Better than 80% of US ZIP codes.

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

4,302

Population

19

Water Systems

23

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (19)

Warren, City Of

Purchased surface water 134,056 people served
0 violations
Lead tested: 2.7 ppb (limit: 15 ppb)

Sterling Heights, City Of

Purchased surface water 127,000 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Clinton Township

All resolved
Purchased surface water 100,513 people served
4 violations (5yr) · All resolved
Lead tested: 1.2 ppb (limit: 15 ppb)

Macomb Township

All resolved
Purchased surface water 90,000 people served
2 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Shelby Township

Purchased surface water 72,000 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

St. Clair Shores, City Of

All resolved
Purchased surface water 59,715 people served
4 violations (5yr) · All resolved
Lead tested: 1.1 ppb (limit: 15 ppb)

Roseville, City Of

Purchased surface water 47,299 people served
0 violations
Lead tested: 8.98 ppb (limit: 15 ppb)

Chesterfield Township

All resolved
Purchased surface water 41,650 people served
1 violation (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Port Huron, City Of

Surface water 33,800 people served
0 violations

Memphis, City Of

Groundwater 1,084 people served
0 violations

U S Postal/Electrical Supply

Groundwater 350 people served
0 violations

St Marys Camp

Groundwater 100 people served
0 violations

St. Andrews Lutheran Church

Groundwater 50 people served
0 violations

Empire Tool Co

Groundwater 33 people served
0 violations

Memphis Family Medical Clinic

Groundwater 25 people served
0 violations

Mister Z'S Palace

Groundwater 25 people served
0 violations

Belle River Golf Club

All resolved
Groundwater 25 people served
2 violations (5yr) · All resolved

I-69 Truck Stop Center

All resolved
Groundwater 25 people served
10 violations (5yr) · All resolved

Belle River Golf & Countryclub

Groundwater 25 people served
0 violations

Contaminants Found

Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

9 violations
All resolved
TTHMMonitoring
5 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
4 violations
All resolved
NitrateMonitoring

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

4 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2.7 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Warren (48041) has more violations than 80% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 23, most of which are monitoring/reporting issues.

Fewer violations 80th 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.

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