Water Quality in La Crosse, WI (54642)

EPA violation data for public water systems serving ZIP code 54642.

No Health-Based Violations

None of the 16 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There is1 monitoring/reporting violation (missed testing deadlines), all resolved.

Better than 29% of US ZIP codes.

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

2,259

Population

16

Water Systems

1

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (16)

La Crosse Waterworks

All resolved
Groundwater 53,000 people served
1 violation (5yr) · All resolved
Lead tested: 10.9 ppb (limit: 15 ppb)

Onalaska Waterworks

Groundwater 18,000 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Melrose Mindoro United Campus

Groundwater 800 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Melrose Waterworks

Groundwater 524 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Melrose Mindoro Vocational School

Groundwater 200 people served
0 violations
Lead tested: 2.21 ppb (limit: 15 ppb)

North Bend Presbyterian Church

Groundwater 100 people served
0 violations

Handle Bar The

Groundwater 78 people served
0 violations

Melrose Rod & Gun Club

Groundwater 75 people served
0 violations

Monkeys Roost

Groundwater 75 people served
0 violations

Freddies Bar

Groundwater 30 people served
0 violations

Shanty Town Tavern

Groundwater 30 people served
0 violations

Riverbend Golf Course The Well 1

Groundwater 30 people served
0 violations

Jcs Pizza & Pub

Groundwater 28 people served
0 violations

Happy Hollow

Groundwater 27 people served
0 violations

Blockhouse-Duplicate

Groundwater 25 people served
0 violations

Man Cave

Groundwater 25 people served
0 violations

Contaminants Found

Lead and Copper RuleMonitoring

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

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Sep 2025

How Does This Compare?

La Crosse (54642) has more violations than 29% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 1, most of which are monitoring/reporting issues.

Fewer violations 29th 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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