Illinois — all systems
Illinois water systems A–Z
Page 4 of 6 · Marissa → Prairie Path Water-bahl Water Company. Every public water system we track in Illinois, alphabetically. Each links to the system's measured contaminant levels against federal limits.
- Marissa (2024)
- Mark (2025)
- Markham (2025)
- Maroa (2025)
- Marquette Heights (2025)
- Marseilles (2025)
- Marseilles South (2024)
- Marshall (2025)
- Martinsville (2025)
- Martinton (2025)
- Maryville (2025)
- Mascoutah (2025)
- Mason City (2025)
- Mat Holdings (2024)
- Matherville (2025)
- Matteson (2025)
- Mattoon (2025)
- Mayfair Subdivision (2025)
- Maywood (2024)
- Mazon (2025)
- Mc Cook (2024)
- Mc Lean (2025)
- Mcclure-east Cape Pwd (2023)
- Mchenry (2025)
- Mcleansboro (2024)
- Mcnabb (2025)
- Meadow Lane School (2025)
- Meadowbrook Mh Community, Llc (2025)
- Meadowbrook Pwd (2025)
- Meadows Mennonite Home (2022)
- Meadows of Bloomington Mhp (2025)
- Mechanicsburg-buffalo Water Commission (2022)
- Media (2024)
- Medora (2025)
- Melrose Park (2025)
- Melvin (2023)
- Menard Correctional Center (1998)
- Menard Rural Water Coop (2025)
- Menards - Long Grove (2024)
- Mendon (2025)
- Mendota (2025)
- Mendota Estates Mhp (2025)
- Meredosia (2025)
- Merichkas (2024)
- Meridian Mhp (2025)
- Meridian Village (2025)
- Merrionette Park (2024)
- Messiah Lutheran Presch and Kinder (2025)
- Metamora (2025)
- Metcalf (2024)
- Metropolis (2025)
- Mexichem Speciality Resins (orbia Polyme (2025)
- Mid America Growers (2025)
- Mid-american Air Center (2025)
- Middletown (2025)
- Midland High School (2025)
- Midlothian (2025)
- Midwest Generation - Powerton (2023)
- Milan (2025)
- Milford (2025)
- Mill Creek Pwd (2025)
- Mill Creek Water Reclamation District (2025)
- Mill Point Mhp (2022)
- Mill Shoals (2025)
- Millbrook Junior High (2024)
- Millburn School (2025)
- Millburn School Dist #24 (2024)
- Milledgeville (2025)
- Miller Comm Consol Sch 210 (2024)
- Millstadt (2025)
- Millstone Pwd (2025)
- Milton (2024)
- Milton Manor Mhp (2023)
- Mindhaven Academy (2014)
- Mineral (2025)
- Minier (2025)
- Minonk (2025)
- Minooka (2025)
- Mission Brook Sd (2024)
- Mississippi Manufactured Home Community (2024)
- Mitchell Pwd (2023)
- Mitchellsville Pwd (2025)
- Modesto (2025)
- Mokena (2025)
- Moline (2025)
- Momence (2025)
- Monee (2025)
- Monmouth (2025)
- Monroe Center School - New Well (2025)
- Monroe Center School - Old Well (2025)
- Monte Carlo Plaza (2025)
- Montessori Academy Glen Ellyn (2023)
- Montessori Chldrns Hse-n Barr (2025)
- Montessori School of Long Grove (2024)
- Montgomery (2025)
- Monticello (2025)
- Montmorency School (2025)
- Moores Prairie Township Water Company (2024)
- Mooseheart (2025)
- Morgan Creek (2024)
- Morningside Mobile Estates Mhp (2022)
- Moro Pwd (2025)
- Morris (2025)
- Morrison (2025)
- Morrisonville (2025)
- Morton (2025)
- Morton Grove (2025)
- Mother Teresa Catholic Academy (2024)
- Moultrie County Rwd (2025)
- Mound City (2025)
- Mound Pwd (2021)
- Mound Station (2024)
- Mounds (2025)
- Mount Auburn (2024)
- Mount Carmel (2025)
- Mount Carroll (2024)
- Mount Clare (2025)
- Mount Erie (2025)
- Mount Morris (2025)
- Mount Morris Estates Mhp (2025)
- Mount Olive (2025)
- Mount Prospect (2025)
- Mount St Joseph School Icf (2024)
- Mount Sterling (2024)
- Mount Vernon (2025)
- Mount Vernon Association Inc (2025)
- Mount Zion (2025)
- Moweaqua (2025)
- Muddy (2024)
- Mulberry Grove (2024)
- Mulkeytown Pwd (2024)
- Muller-pinehurst Dairy (2025)
- Mundelein (2023)
- Murdale Pwd (2025)
- Murphysboro (2025)
- Murrayville-woodson Water Commission (2025)
- Muslim Community Center (2025)
- Naperville (2025)
- Naplate (2024)
- Nashville (2025)
- Nason (2024)
- Natures Scholars Daycare (2025)
- Nauvoo (2025)
- Nebo (2025)
- Neoga (2025)
- Neponset (2025)
- Nettle Creek School (2025)
- New Athens (2025)
- New Baden (2025)
- New Berlin (2025)
- New Boston (2025)
- New Canton (2025)
- New Haven (2024)
- New Holland (2025)
- New Hope Waterworks Corp (2025)
- New Lenox (2025)
- New Memphis Pwd (2025)
- New Minden (2025)
- New Perspective Senior Living (2025)
- New Piasa Chautauqua Pws (2025)
- New Salem Pwd (2025)
- New Windsor (2023)
- Newark (2025)
- Newman (2025)
- Newport School (2024)
- Newton (2025)
- Niles (2025)
- Nilwood (2024)
- Nitrex Inc Chicago Operations (2024)
- Noble (2025)
- Nokomis (2025)
- Normal (2025)
- Norridge (2025)
- Norris (2025)
- Norris City (2025)
- North Aurora (2025)
- North Barrington Elm School (2022)
- North Boone High School (2022)
- North Boone Middle School (2022)
- North Boone Upper Elementary School (2022)
- North Chicago (2025)
- North City (2024)
- North East Central Pwd (2024)
- North East Marion County Water Cmpny (2025)
- North Hazelwood Sbdv (2024)
- North Henderson (2025)
- North Meadow Village Mhp (2024)
- North Morgan Water Coop (2025)
- North Park Pwd (2025)
- North Pekin (2025)
- North Regional Water Fac (2024)
- North Riverside (2025)
- North Tazewell Pwd (2025)
- North Utica (2025)
- Northbrook (2025)
- Northbrook Mhc (2023)
- Northbrook Montessori School (2025)
- Northeast Mount Vernon Water Company (2025)
- Northern Illinois University-dekalb (2025)
- Northern White Sands Llc (2025)
- Northfield (2025)
- Northfield Block Company 1 (2023)
- Northfield Block Company 2 (2023)
- Northfield Block Company 3 (2023)
- Northlake (2025)
- Northshore Univ Glenbrook (2025)
- Northshore University Evanston (2024)
- Northshore University Skokie (2024)
- Northwest Bible Baptist Church (2025)
- Northwest Comm Hosp Outpt Care (2024)
- Northwestern Medicine Woodstock Hospital (2025)
- Nouryon Surface Chemistry Llc (2024)
- Nucor Rebar Fabrication Midwest (2023)
- Nuestro Queso - Exterior Well (2025)
- Nuestro Queso - Interior Well (2024)
- Nussbaum Transportation (2024)
- Nussbaum Transportation #2 (2024)
- Nutrien Ag Solutions (2025)
- O Fallon (2025)
- Oak Brook (2025)
- Oak Forest (2025)
- Oak Grove Mhp - Madison County (2025)
- Oak Grove Mhp - Rock Island County (2024)
- Oak Grove Village (2025)
- Oak Lane Acres Subdivision (2024)
- Oak Lane Mhc (2025)
- Oak Lawn (2025)
- Oak Lawn Mhp (2024)
- Oak Park (2025)
- Oak Park Estates (2023)
- Oak Ridge Sanitary District (2025)
- Oak View Estates (2024)
- Oakbrook Estates Mhp (2025)
- Oakbrook Terrace (2025)
- Oakford (2024)
- Oakland (2025)
- Oaklane Sbdv (2023)
- Oakwood Estates (2025)
- Oakwood Twp High School (2024)
- Oakwood West Subdivision (2024)
- Oasis Mhp (2024)
- Oblong (2025)
- Obrien Steel (2025)
- Odell (2025)
- Odin (2025)
- Ogden (2025)
- Ogden Gardens Subdivision (2025)
- Oglesby (2025)
- Ohio (2025)
- Okawville (2025)
- Old Salem Chautauqua (2025)
- Old Shawneetown (2024)
- Olin Winchester Llc (2025)
- Olivet Pwd (2025)
- Olmsted (2025)
- Olney (2025)
- Olympia Fields (2025)
- Olympia School (2024)
- Omaha (2024)
- Onarga (2025)
- Oneida (2025)
- Ophiem Pws (2024)
- Oquawka (2024)
- Orangeville (2025)
- Oraville Water District (2024)
- Oreana (2025)
- Oregon (2025)
- Oregon Tool (2025)
- Orient (2025)
- Orion (2025)
- Orland Park (2025)
- Osco Mutual Water Supply Company, Inc. (2025)
- Osf St Francis Hospital (2025)
- Oswego (2025)
- Ottawa (2025)
- Ottawa Estates Mhp (formerly Dattis Mhp) (2023)
- Otter Creek Lake Utilities District (2025)
- Otter Lake Water Commission (2025)
- Palatine (2025)
- Palmer (2025)
- Palmyra (2025)
- Palmyra-modesto Water Commission (2025)
- Palos Heights (2023)
- Palos Hills (2025)
- Palos Park (2025)
- Pana (2025)
- Panama (2024)
- Paradise Manor Mhp (2025)
- Paradise Mhp (2025)
- Paris (2025)
- Park Center of Kemper Lakes Aviands (2025)
- Park City (2025)
- Park City Mhp (2025)
- Park Forest (2023)
- Park Meadowland West Mhp (2024)
- Park Place of Schaumburg (2025)
- Park Ridge (2025)
- Park Ridge Mhc (2025)
- Parkersburg (2025)
- Parsons Inc (2025)
- Patch Place Mhc (2014)
- Patoka (2025)
- Patterson (inc As Wilmington) (2025)
- Pauls Mhp (2025)
- Paw Paw (2025)
- Pawnee (2025)
- Paxton (2025)
- Payson (2025)
- Pbc Linear (2024)
- Pcs Phosphate (2025)
- Peaceful Pathways (2025)
- Pearl (2022)
- Pearl City (2025)
- Pearl Valley Farms (2025)
- Pecatonica (2025)
- Pekin Fed Correctional Inst and Prsncmp (2024)
- Pembroke Township (2025)
- Penfield Pwd (2025)
- Peoples Gas (2024)
- Peoples Gas (2025)
- Peoria Heights (2025)
- Peotone Intermediate Center (2024)
- Percy (2024)
- Perry (2025)
- Peru (2025)
- Peter Pan Day School (2025)
- Peter Rabbit Day Care School (2025)
- Petersburg (2025)
- Petrolia Pwd (2024)
- Pharmacann (2024)
- Pheasant Lake Estates Mhp (2025)
- Pheasant Run Mhp (2023)
- Phil-aire Estates Mhp (2025)
- Phoenix (2025)
- Pierron (2025)
- Pike County Pwd 1 (2025)
- Pinckneyville (2025)
- Pingree Grove (2025)
- Pioneer Hi-bred Intl Research (2025)
- Piper City (2025)
- Pittsburg (2025)
- Pittsfield (2025)
- Plainfield (2025)
- Plainville (2023)
- Plano (2025)
- Pleasant Hill (2025)
- Pleasant Plains (2025)
- Pleasant Ridge Mhp (2024)
- Pleasant Valley Pwd (2025)
- Plumfield Water District (2025)
- Plymouth (2025)
- Pocahontas (2020)
- Polo (2025)
- Polo Dr and Saddle Rd Subdivision (2025)
- Polynt Composites Usa, Inc (2024)
- Pontiac Correctional Center (2024)
- Pontoon Beach Pwd (2025)
- Poplar Grove (2025)
- Poplar Grove Airport (2025)
- Poplar Grove South (2022)
- Poplar Grove West-countryside (2024)
- Pork King (2024)
- Port Byron (2025)
- Ports Sullivan Lake Owners Association (2023)
- Posen (2025)
- Posh Tots Academy (2024)
- Potomac (2025)
- Powers Water Co, Inc. (2025)
- Prairie City (2025)
- Prairie Du Rocher (2025)
- Prairie Dupont Pwd (2025)
- Prairie Grove School (2024)
- Prairie Oaks Ests Homeowners Assn (2023)
- Prairie Path -port Barrington Shores (2024)
- Prairie Path Water Co-coventry Creek (2025)
- Prairie Path Water Co-whispering Hills (2025)
- Prairie Path Water Company-apple Canyon (2024)
- Prairie Path Water Company-camelot (2025)
- Prairie Path Water Company-cedar Water (2024)
- Prairie Path Water Company-char-mar (2024)
- Prairie Path Water Company-cherry Hill (2025)
- Prairie Path Water Company-clarendon (2025)
- Prairie Path Water Company-coventry Hill (2025)
- Prairie Path Water Company-del-mar (2025)
- Prairie Path Water Company-ferson Creek (2025)
- Prairie Path Water Company-galena (2024)
- Prairie Path Water Company-harbor Ridge (2025)
- Prairie Path Water Company-holiday Hills (2025)
- Prairie Path Water Company-killarney (2025)
- Prairie Path Water Company-lake Holiday (2025)
- Prairie Path Water Company-lake Marian (2024)
- Prairie Path Water Company-lake Wildwood (2025)
- Prairie Path Water Company-northern Hill (2025)
- Prairie Path Water Company-oakwood (2025)
- Prairie Path Water Company-rockvale (2025)
- Prairie Path Water Company-valentine (2025)
- Prairie Path Water Company-walk Up Woods (2024)
- Prairie Path Water Company-westlake (2025)
- Prairie Path Water Company-wildwood (2025)
- Prairie Path Water-bahl Water Company (2024)