Tapcensus

Illinois

Winnebago County drinking water quality

195 active public water systems serve 255,435 people in Winnebago County. 74 are compliant, 121 had at least one EPA violation in the past three years, 10 are designated serious violators, and 2 carry a health flag.

Active systems 195 28 community systems
People served 255K by public water systems
Systems with violations 121 62% of active systems, past 3 years
Serious violators 10 2 systems carry a health flag

Needs attention

Latham West IL3046904 · Transient non-community system · Serves 100 2 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.
Macktown Lounge IL3047498 · Transient non-community system · Serves 100 2 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.
Top Die Casting CO IL3131060 · Non-Transient non-community system · Serves 100 7 rules violated in the past three years. Unresolved: Lead and Copper Rule and Public Notice Rule and Revised PN Rule.
The Filling Station IL3114637 · Transient non-community system · Serves 75 2 rules violated in the past three years
Bridge Street Pizza and Chicken IL3165969 · Transient non-community system · Serves 48 2 rules violated in the past three years
ST Andrew Lutheran Church IL3119982 · Transient non-community system · Serves 45 2 rules violated in the past three years
Lakewood Hills Beach IL3122440 · Transient non-community system · Serves 40 3 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.
DC Estates Winery IL3158782 · Transient non-community system · Serves 25 2 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.
Tacos Neno IL3161220 · Transient non-community system · Serves 25 3 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.
Two Wheel Inn IL3130583 · Transient non-community system · Serves 25 3 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.

2 more systems with a serious violator or health flag designation are in the lists below.

Community water systems

28 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Rockford
Rockford 		147,051 3 0
North Park Pwd
Machesney Park 		35,580 0 0
Loves Park
Loves Park 		23,335 1 1
IL American-South Beloit
South Beloit 		7,893 0 0
Rockton
Rockton 		7,863 2 0
Cherry Valley
Cherry Valley 		4,731 2 1
Winnebago
Winnebago 		2,940 0 0
Otter Creek Lake Utilities District
Loves Park 		2,342 1 0
Pecatonica
Pecatonica 		2,195 0 0
IL American-Westlake
Loves Park 		1,493 1 0
Durand
Durand 		1,427 2 0
Forest View MHP
 650 0 0
IL American-Coventry Hill
 608 0 0
South Bluff MHP
South Beloit 		507 1 0
IL American-Wildwood
Rockford 		490 1 0
Mancuso Village Park MHP
New Millford 		325 1 0
IL American-Coventry Creek
 270 0 0
Green Meadow Estates of Rockford LLC
 250 1 0
Legend Lakes Water Association
Roscoe 		250 0 0
Rockford Mhc, LLC
Rockford 		240 3 0
Prairie Road Pump Corporation
Rockford 		150 3 0
Aqua Illinois-Sheridan Grove
 100 1 0
Northgate Estates MHP
South Beloit 		100 2 1
Clarks MHP
Rockford 		90 2 1
River City Mhc, LLC
Machesney Park 		83 2 0
Bradley Heights Subdivision
Rockford 		82 0 0
Phil-Aire Estates MHP
Rockton 		80 3 1
Six Oaks MHP
 48 1 0
Non-community systems (167: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Turtle Creek Rest Area
 700 2 0
Stone Creek School
 543 4 0
I-39 Shell Express
 500 0 0
Rock Cut ST Pk-Beach Well
 500 1 0
Ledgewood Elementary School
 470 2 0
Legacy Academy
 325 1 0
Berean Baptist Church
 300 3 1
Pearl Lake RV Resort Llc-Bathhouse
 300 3 1
Pearl Lake RV Resort Llc-Clubhouse
 300 3 1
YMCA Camp Winnebago Webvillion
 300 3 1
YMCA Camp Winnebago-Standing Bear Well
 300 3 1
YMCA Camp Winnebago-Wilderness Well
 300 1 1
Mauh-Nah-Tee-See C C
 277 2 1
Rivers Edge Campground
 275 0 0
Lakeside Plaza on Best Road
 250 1 1
Rockford Speedway Convention C
 250 0 0
Riveras Fresh Market
 200 0 0
Shirland School
 200 2 0
Ledges Swim Club
 175 3 1
Tpg Pressure, Inc.
 151 8 1
Atwood Homestead Club House
 150 0 0
Blackhawk Farms Raceway
 150 3 1
Forest Hills Diamonds
 150 2 0
New Milford Express
 150 2 1
Pbc Linear
 140 6 1
MR CS Family Restaurant
 125 3 1
Rockford Mutual Insurance CO
 125 1 0
Deans Illinois Dairies
 110 6 0
Alvarez Mexican Restaurant
 100 1 1
Betsy's Slots
 100 0 0
Blackhawk Valley Campground
 100 2 1
Diamond Slots
 100 2 1
Forest Hills Country Club (140038)
 100 1 0
HI VU Motel Tap 251
 100 0 0
Image
 100 2 0
Latham West
 100 2 1
Ledges Golf Comfort
 100 0 0
Ledges Golf Course Lodge
 100 2 1
Macktown Golf Course Picnic AR
 100 0 0
Macktown Lounge
 100 2 1
Midway Village & Museum Center
 100 3 1
Muller-Pinehurst Dairy
 100 5 0
Muslim Community Center
 100 5 0
New Mill Tap
 100 3 0
Opsahls
 100 1 0
Pearl Lake RV Resort Llc-Sw Well
 100 3 1
Plug & Pellet Sportsmans Club
 100 2 1
Poison Ivy
 100 3 1
Seward Screw Products 16377
 100 5 0
ST Ritas School
 100 2 1
Sugar Shores Camping Resort
 100 3 1
Supermercado Guanajuato
 100 2 1
Swanson Park
 100 2 1
Top Die Casting CO
 100 7 2
Walmart Supercenter 03837
 100 0 0
Woodmans
 100 0 0
Diocese of Rockford
 90 3 0
Cross and Crown Day Care
 80 0 0
Galapagos Charter School
 80 2 1
Camp Hillcrest Lodge East
 75 3 1
Rock Cut State Park-Hickory Hill
 75 0 0
Rock Cut State Park-Plum Grove
 75 0 0
The Filling Station
 75 2 0
Pearl Lake RV Resort Llc-Ne Well
 56 3 1
Stateline Foundries
 52 5 1
Atwood Center Youth Building
 50 1 0
Atwood Homestead South Golf
 50 0 0
Camp Hillcrest-Kitchen West Well
 50 2 1
Coon & Fox Hunters Assoc
 50 3 1
Dolan Education Center
 50 6 1
Hononegah Forest Preserve-North Camp HP
 50 0 0
IL Vipassana Association Dorm (148593)
 50 1 1
Kieselberg Black Willow Area
 50 0 0
Kieselburg F P Red Cedar Lodg
 50 1 0
Ledges Golf Maintenance Bldg
 50 0 0
Life Technologies Corporation
 50 1 0
Louies Tap House
 50 3 1
Roland Olson Bikepath Handpump
 50 2 1
Roland Olson FP Stuga Area
 50 0 0
Roland Olson-Equestrian Area
 50 0 0
Standfield Beach
 50 2 0
Bridge Street Pizza and Chicken
 48 2 0
Roy Gayle Baseball Park
 45 2 0
ST Andrew Lutheran Church
 45 2 0
Lakewood Hills Beach
 40 3 1
Crazy Times
 35 0 0
YMCA Camp Winnebago
 35 2 0
DC Estate Winery Production
 30 3 1
Kishwaukee FP Small Shelter
 30 0 0
Pecatonica River FP ED Bldg/shop
 30 0 0
Rockfor Rotary Forest Preserve
 30 0 0
Seward Bluffs Forest Preserve-Campground
 30 0 0
Sugar River Forest Preserve-Campground
 30 0 0
Sugar River Forest Preserve-Canoe Camp
 30 0 0
Tollway Inn
 30 1 0
Altorfer Cat
 25 1 0
Anna Page Park Comfort Area
 25 3 1
Blackhawk Springs F P
 25 0 0
CK Crystal Water
 25 0 0
Colored Sands Forest Pres. Canoe Launch
 25 0 0
All 167 in the systems table
Inactive systems (927, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

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 Illinois 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.