Water Quality in La Crosse, WI (54656)
EPA violation data for public water systems serving ZIP code 54656.
Past Health-Based Violations
6 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 4 monitoring/reporting violations.
More violations than 67% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
18,160
Population
76
Water Systems
10
Violations (5yr)
6
Health-Based
Location
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Water Systems Serving This Area (76)
La Crosse Waterworks
All resolvedOnalaska Waterworks
Sparta Waterworks
Fort Mccoy North Post
All resolvedRolling Hills Nursing Home
Fort Mccoy South Post
All resolvedFort Mc Coy Whitetail Ski Lodge
Fox Hole Pub
Fort Mccoy Range 34
All resolvedAmbassador Baptist Church 2
Tom Melde
Fort Mccoy Range 6
Fort Mccoy Ttb Justice
Omers Standard Station
Ambassador Baptist Church
Monroe Co Mcmullen Park-Camping West
Monroe Co Mcmullen Park-Bathhouse
Fort Mccoy Range 101
Fort Mccoy Ttb Independence
Fort Mccoy Range 32
Fort Mccoy Range 18
Monroe Co Mcmullen Park-Camping East
Monroe Co Mcmullen Park 3
Fort Mccoy Range 2
Monroe Co Mcmullen Park-Fish House
Monroe Co Mcmullen Park-Shelter
John T Gomez Leasee
Ranch House, The
Club Oasis Kitchen
Club Oasis
Fort Mccoy Range 29
Big Dans Longbranch
Angelo Elementary School
Club Oasis Rest Rooms
Kingdom Hall Jehovah Wt Ch
Leon Country Tavern
First Cong Ch Of Leon
Cataract Methodist Church
Outer Limits
Rite Spot Bar And Grill
Highway 21 Trailer Park
Zone The
Barons Gentlemens Club
Warriors Retreat
Hi Way 16 Drive In
Fort Mc Coy Airport-Duplicate Of 6420472
Whiskey Creek Family Rv Park
Cotter Pin, Llc
Eddies Convenience Store
Leon Valley Campground Well House
Monroe County Wayside 1 Angelo
Sparta First Church Of The Nazarene
Justin Trails B & B Resort 2
Faith Evangelical Free Church
Fort Mccoy Range 36
Oasis Church
Bobs Repair Shop
Cataract Mart
Fort Mccoy Range 31
Equity Co-Op Sales Barn
Justin Trails B & B Resort 1
Cataract Essential Services (Ces)
Fort Mccoy Airfield
Oakview Estates Community - Well #2
Fort Mc Coy Pine View Recreation Cpgd
Meadowlark Cmpgd
Faith Ev Lutheran Church
Fort Mc Coy Rod & Gun Club
Leon Valley Campground Store
Fort Mc Coy D Well
Fort Mccoy Cactf
Eagles Club
6 health-basedAlchemy Brew Pub
Cataract Mill Cmpgd
Leon Pit Stop
Leon Community Center
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jun 2025
How Does This Compare?
La Crosse (54656) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.
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
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
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.