Tapcensus

Water quality for ZIP code 48178

ZIP 48178 covers South Lyon and Whitmore Lake in Oakland County, Michigan, one of 68 ZIP codes in the county. 729 active public water systems serve the county; 204 had an EPA violation in the past three years.

Most likely your provider

South Lyon, City of MI0006110 · Community water system · Ground water · South Lyon
Serves 11,055 people Rules violated, past 3 years 0 Last sanitary survey Jul 10, 2025 Distance 1.7 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in Oakland County

107 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Lake Angela Condo Apts #6
 24 0 3.4 mi
Lake Angela Condo Apts #5
 24 0 3.5 mi
Lyon Township
 9,390 3 4.3 mi
Childs Lake Estates MHC
 1,548 3 7.7 mi
Wixom, City of
Wixom		 13,928 0 8.0 mi
Springs/portsmouth Apartments
 3,200 1 8.9 mi
Novi, City of
Novi		 56,780 0 9.5 mi
Penny Lake Estates Subdivision
 390 0 10.6 mi
Milford, Village of
Milford		 6,366 1 10.9 mi
Ridgewood Mobile Home Park INC
 1,030 0 11.1 mi
Walled Lake, City of
Walled Lake		 5,260 1 11.2 mi
Laguna Vista Subdivision
 640 1 11.4 mi
Heritage Apartments
 30 3 12.1 mi
Commerce Township
 19,811 0 12.5 mi
Highland Greens Estates
 2,268 0 13.0 mi
Farmington, City of
Farmington		 11,597 0 13.0 mi
Highland Hills of Highland MHC
 260 0 13.5 mi
Cedarbrook Estates
 1,728 0 14.2 mi
Highland Township
 3,837 0 14.2 mi
Highland Haven/woodside Apts
 40 0 14.6 mi
Farmington Hills, City of
Farmington Hills		 56,984 0 14.6 mi
West Bloomfield Township
 49,479 0 15.1 mi
Ridge Valley of Milford
 512 0 16.3 mi
White Lake Township
 6,619 3 16.4 mi
Woodbine Subdivision
 375 0 16.8 mi
All 108 community water systems in Oakland County
Non-community systems in Oakland County (621: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Walgreens #10778 South Lyon
 150 2 0
Advanced Urgent Care
 100 0 0
South Lyon Dental Care Center
 30 0 0
A&b LLC of South Lyon
 200 0 0
South Lyon Church of Christ
 150 1 0
Marathon Gas (south Lyon)
 300 1 0
Fellowship Presbyterian Church SL
 150 0 0
First Baptist Church of South Lyon
 200 0 0
Learning Tree
 50 0 0
South Lyon Center LLC
 400 1 1
Mobil Mart #200330838 Dba: Shell
 200 0 0
Lyon Grill
 300 0 0
Cross of Christ Church and Preschool
 300 0 0
Country Meadow Inn
 30 0 0
River Bank Golf Club
 300 2 0
Blake's Lyon Township
 200 1 0
Cvs Pharmacy #8304
 400 0 0
Sun Outdoors Kensington (haas Lake)
 1,200 2 1
Walnut Creek C.c.-Halfway House
 200 0 0
Walnut Creek Country Club
 200 0 0
Lyon Township (new Hudson) Library
 100 0 0
Good Neighbor Pharmacy
 100 1 0
Novi Sports Park West Concession Stand
 50 0 0
Novi Sports Park-North Concession Stand
 50 0 0
Coyote Golf Course
 100 0 0
D E McNabb Carpet CO
 60 2 1
Kensington-Nature Center
 100 0 0
Kensington-West Boat Launch RR
 100 0 0
Kensington-West Boat Launch HP
 30 0 0
Kensington-Bay Woods Picnic
 100 0 0
Kensington-Turtlehead Comf Sta
 100 0 0
Kensington-Boat Rental #79
 100 0 0
Kensington-East Boat Launch RR
 50 0 0
Kensington-Maple Beach
 200 0 0
Kensington-Hickory Ridge Comfort Station
 100 1 0
Kensington-Playfield Picnic RR
 100 0 0
Kensington-North Martindale
 30 0 0
Hines Park Ford
 100 0 0
Links of Novi
 200 0 0
Gayle's Dancephase
 50 0 0
Kensington-Possum Hollow RR
 50 0 0
Kensington-Winter Sports/orchard
 45 0 0
Eidemiller Precision Machining
 65 0 0
Kensington-Mitten Bay HP #78
 30 0 0
Lyon Oaks GC Front 9
 125 0 0
Lyon Oaks Picnic
 50 0 0
Lyon Oaks GC Back 9
 125 0 0
Lyon Oaks Banquet Center
 100 0 0
Dani's Transport Dba Jadc Ventures
 30 0 0
Central Conveyor
 115 0 0
All non-community systems
About this data

Water systems are matched to Oakland County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Michigan records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.