Water Quality in National City, MI (48748)

EPA violation data for public water systems serving ZIP code 48748.

No Health-Based Violations

None of the 19 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are3 monitoring/reporting violations (missed testing deadlines), all resolved.

Better than 36% of US ZIP codes.

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

1,537

Population

19

Water Systems

3

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (19)

D&R Bear Trail Ent./Nessy'S Marathon

Groundwater 200 people served
0 violations

Sand Lake Micro Brewery

All resolved
Groundwater 100 people served
1 violation (5yr) · All resolved

Bill & Kay'S Party Mart

Groundwater 100 people served
0 violations

Indian Lake Outpost

Groundwater 100 people served
0 violations

National Gypsum Co

Groundwater 90 people served
0 violations

Rainbow Gardens

Groundwater 75 people served
0 violations

Cast Iron Grill

Groundwater 60 people served
0 violations

Galli'S Family Restaurant

Groundwater 60 people served
0 violations

Sand Lake Tavern & Grill

All resolved
Groundwater 50 people served
1 violation (5yr) · All resolved

Usfs - Hmnf Round Lk Cg-Round Loop 1

Groundwater 50 people served
0 violations

Evan'S Ice Cream Shop

Groundwater 50 people served
0 violations

National Gypsum Board Plant North Well

Groundwater 49 people served
0 violations

National Gypsum Board Plant South Well

Groundwater 49 people served
0 violations

Sandlake Hgts Community Bldg

Groundwater 30 people served
0 violations

National Gypsum Company-Quarry

Groundwater 28 people served
0 violations

Usfs - Hmnf Round Lk Cg-Indian Loop 2

All resolved
Groundwater 25 people served
1 violation (5yr) · All resolved

National Gypsum Co

Groundwater 25 people served
0 violations

Usfs - Sand Lk Picnic Area

Groundwater 25 people served
0 violations

Ginny'S Dinner Bell

Groundwater 25 people served
0 violations

Contaminants Found

Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

3 violations
All resolved

How Does This Compare?

National City (48748) has more violations than 36% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 3, most of which are monitoring/reporting issues.

Fewer violations 36th 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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