Illinois — all systems
Illinois water systems A–Z
Page 1 of 6 · 325 S Route 31 Llc → Cordova. Every public water system we track in Illinois, alphabetically. Each links to the system's measured contaminant levels against federal limits.
- 325 S Route 31 Llc (2025)
- 3m Chemical Operations Llc (2025)
- Abingdon (2025)
- Abs Water Coop (2025)
- Adams County Water District No 1 (2024)
- Addison (2025)
- Advocate Christ Medical Center (2025)
- Ag View Fs Inc. (2025)
- Air View Mhp (2025)
- Akin Water District (2025)
- Albany (2025)
- Albers (2023)
- Albion (2025)
- Alden Long Grove Nursing Center (2024)
- Aledo (2025)
- Alexander Water District (2023)
- Alexian Brothers Medical Center (2025)
- Alexian Brothers Medical Center & Rehab (2025)
- Alexis (2025)
- Algonquin (2025)
- Alhambra (2025)
- Allendale (2025)
- Allendale Association (2025)
- Allerton (2025)
- Allied Locke Industries (2025)
- Alloy Specialties (10500312) (2025)
- Alloy Specialties (10500320) (2025)
- Alma (2024)
- Alpha (2025)
- Alpine Village Mhp (2025)
- Alsey-glasgow Water Commission (2025)
- Alsip (2023)
- Altamont (2025)
- Alto Pass Water District (2025)
- Altona (2024)
- Alumitank Inc (2025)
- Alvin (2023)
- Amboy (2025)
- Ameren-cilco-eastern Serv Ctr (2025)
- American Ad Bag (2025)
- American Nickeloid (2024)
- American Precision Elctronics (2024)
- American Water Oper and Maintenance, Llc (2024)
- Anchor (2025)
- Andover (2024)
- Anna (2025)
- Anna-jonesboro Water Commission (2025)
- Annawan (2025)
- Antioch (2025)
- Apachi Day Camp (2025)
- Apple Creek Water Coop (2024)
- Apple River (2024)
- Aqua Illinois-candlewick Dvn (2025)
- Aqua Illinois-crystal Clear Water Co. (2025)
- Aqua Illinois-eastwood Manor (2025)
- Aqua Illinois-fairhaven Estates (2024)
- Aqua Illinois-hawthorn Woods (2023)
- Aqua Illinois-highland Estates (2023)
- Aqua Illinois-indianola (2025)
- Aqua Illinois-ivanhoe (2024)
- Aqua Illinois-kankakee (2025)
- Aqua Illinois-mchenry Shores (2023)
- Aqua Illinois-moecherville (2025)
- Aqua Illinois-nordic Woods (2025)
- Aqua Illinois-north Maine Utilities (2025)
- Aqua Illinois-nunda (2023)
- Aqua Illinois-oak Brook (2025)
- Aqua Illinois-oak Run (2024)
- Aqua Illinois-oakview (2023)
- Aqua Illinois-peotone (2025)
- Aqua Illinois-philo (2025)
- Aqua Illinois-ravenna (2025)
- Aqua Illinois-rockwell (2024)
- Aqua Illinois-sheridan Grove (2023)
- Aqua Illinois-skyline (2024)
- Aqua Illinois-skyline (northern) (2025)
- Aqua Illinois-summerdale (2024)
- Aqua Illinois-sun River Terrace (2025)
- Aqua Illinois-timber Ridge (2025)
- Aqua Illinois-university Park (2025)
- Aqua Illinois-vermilion County (2025)
- Aqua Illinois-village Woods (2025)
- Aqua Illinois-willowbrook (2023)
- Aqua Illinois-woodlawn (2025)
- Aqua Plaza (2025)
- Arapaho Village Mhp (2025)
- Arcola (2025)
- Arcola/tuscola Water Transmissioin Main (2024)
- Arenzville (2025)
- Arenzville Rural Water Cooperative (2023)
- Argenta (2025)
- Arlington (2025)
- Arlington Heights (2025)
- Armington (2025)
- Armstrong Twp Hs (2023)
- Armstrong-ellis Grade School (2024)
- Arntzen Corporation (2025)
- Arrowsmith (2024)
- Arthur (2025)
- Ashkum (2025)
- Ashland (2025)
- Ashley (2025)
- Ashmore (2024)
- Ashton (2025)
- Assumption (2024)
- Astoria (2025)
- Athens (2025)
- Atkinson (2025)
- Atlanta (2025)
- Atwood (2025)
- Auburn (2025)
- Augusta (2025)
- Aurora (2025)
- Aurora Community Water Assn (2024)
- Autumn Ridge Estates (2025)
- Aux Sable Liquid Products Inc (2024)
- Ava (2025)
- Avantara Long Grove (2024)
- Aviston (2025)
- Avon (2024)
- Azz Galvanizing (2025)
- Baldwin (2025)
- Balmoral Elem (2025)
- Balmoral Heights Subdivision (2025)
- Bannockburn (2025)
- Banyan Treatment Center (2024)
- Barbara Rose Elementary School (2024)
- Barberry Acres Mhp (2025)
- Bardolph (2023)
- Barrington (2025)
- Barrington Hills Cc Clbhse 1&3 (2025)
- Barrington Methodist Church (148742) (2025)
- Barry (2025)
- Bartelso (2025)
- Bartlett (2025)
- Batavia (2025)
- Batchtown (2022)
- Battery Builders (2025)
- Baxter and Woodman (2025)
- Baxter Health Care/hanline (2024)
- Bay View Baptist Church (2025)
- Bayer Co - Waterman Research Facility (2024)
- Bayles Lake Lot Owners Association (2023)
- Baylis (2025)
- Beach Mhp (2025)
- Beach Park (2025)
- Beacon Paxton Llc (2024)
- Beardstown (2025)
- Beason Chestnut Pwd (2025)
- Beaverville (2025)
- Beckemeyer (2024)
- Bedford Park (2025)
- Beecher (2025)
- Beecher City (2025)
- Belknap (2024)
- Belle Rive (2025)
- Bellflower (2025)
- Bellmont (2025)
- Bellwood (2025)
- Belvidere (2025)
- Bement (2025)
- Benld (2022)
- Bensenville (2025)
- Benson (2025)
- Benton (2025)
- Berean Baptist Church (2025)
- Berkeley (2025)
- Bernard Division (2025)
- Berner Food and Beverage Llc (2023)
- Berwyn (2025)
- Bethalto (2023)
- Bethany (2025)
- Biggsville (2024)
- Bill-mar Heights Mhp (2025)
- Biltmore C C Main Building (2025)
- Birds Pinkstaff Water District (2025)
- Bishop Hill (2025)
- Bismarck Community Water District (2025)
- Bissell Village Mhc (2024)
- Blackhawk College East Campus (2025)
- Blackhawk Estates Llc (2024)
- Blairsville Pwd (2022)
- Blandinsville (2025)
- Blessing Hospital (2025)
- Blm Gw Mhp, Llc (2025)
- Bloomingdale (2025)
- Bloomington (2025)
- Bloomington Township Pwd West Phase (2025)
- Bloomington Township Pwd-crestwicke (2025)
- Blue Island (2025)
- Blue Mound (2025)
- Bluff Lake Lodges, Inc. (2025)
- Bluffs (2025)
- Bluford (2024)
- Boley Tool and Machine Works (2023)
- Bond/madison Water Company (2025)
- Bone Gap (2024)
- Bonfield Grade Schl/r Lippold (2023)
- Bonnie (2025)
- Bonnie Brae Forest Manor Sndst (2025)
- Boody Community Water Company (2023)
- Bookwalter Woods Mhp (2024)
- Bostik, Inc (2024)
- Bowen (2025)
- Boyleston Waterworks Corp (2025)
- Braceville (2024)
- Bradford (2025)
- Bradley Heights Subdivision (2025)
- Braidwood (2025)
- Braidwood Generating Station (2022)
- Brandt Industries Usa Ltd (2025)
- Breese (2025)
- Briarcrest Sbdv Homeowners Association (2024)
- Bridgeport (2023)
- Bridgeview (2025)
- Brighton (2025)
- Brimfield (2025)
- Bristol Grade School (2023)
- Broadview (2024)
- Broadview Estates East Peoria (2025)
- Broadwell (2025)
- Brocton (2020)
- Brookdale Senior Living - Vernon Hills (2025)
- Brookfield (2025)
- Brookport (2023)
- Broughton Water District (2024)
- Browning (2025)
- Brownstown (2025)
- Brownsville Water Project, Inc (2025)
- Brussels (2025)
- Bryant (2025)
- Bryce/ash Grove Ed Center (2025)
- Buck Lake Estates Subdivision (2024)
- Buckhorn Ranch Estates Mhp (1997)
- Buckingham (2024)
- Buckley (2025)
- Buckner (2024)
- Buda (2024)
- Buenas Nuevas Community Nfp (2025)
- Buffalo Grove (2023)
- Buffalo Hollow Farms Water Assoc (2022)
- Buncombe Water District (2024)
- Bunker Hill (2025)
- Bureau Junction (2024)
- Burlington (2022)
- Burnham (2025)
- Burnside Pwd (2024)
- Burnt Prairie (2025)
- Burr Ridge (2025)
- Burt Estates Mhc (2025)
- Bush (2024)
- Bushnell (2025)
- Busy Bee Mhp #1 (2022)
- Butler (2023)
- Buysse Subdivision (2025)
- Byron (2025)
- Cabery (2021)
- Cahokia Heights (2025)
- Caledonia School (2025)
- Calhoun (2024)
- Calhoun County Rwd (2025)
- Calumet City (2025)
- Calumet Park (2025)
- Camargo (2025)
- Cambria (2025)
- Cambridge (2025)
- Cambridge Courts Mhp (2025)
- Camden-littleton Water Commission (2025)
- Camp Grove (2025)
- Camp Point (2025)
- Campbell Hill (2025)
- Campus (2025)
- Candlelight Village Mhp (2023)
- Cantigny Park (2025)
- Canton (2025)
- Capron (2025)
- Capron Mhp (2024)
- Captain James a Lovell Fhcc (2025)
- Carbon Cliff (2025)
- Carbon Hill (2024)
- Carbondale (2025)
- Carlinville (2025)
- Carlock (2025)
- Carlyle (2025)
- Carlyle North Water Company, Inc. (2024)
- Carlyle Southwest Pwd (2024)
- Carmel Montessori Academy (2024)
- Carmi (2025)
- Carol Stream (2025)
- Carpentersville (2025)
- Carrier Mills (2025)
- Carroll Heights Utilities Company (2022)
- Carrollton (2022)
- Carterville (2025)
- Carthage (2025)
- Cary (2025)
- Casey (2025)
- Caseyville (2025)
- Cass Rural Water District (2023)
- Cat Mapleton /mapleton (2025)
- Cat Mossville (2025)
- Cat Tech Center (2025)
- Caterpillar Demonstration Area (2024)
- Caterpillar Peoria Proving Grd (2024)
- Caterpillar Trail Pwd (2025)
- Caterpiller - Peoria Proving Grounds (2024)
- Catlin (2025)
- Catty Corporation (2025)
- Cave-in-rock (2022)
- Cbre West Plaza (2023)
- Cci Manufacturing (2025)
- Cedar Brook Estates Subdivision (2025)
- Cedar Point Water Company (2025)
- Cedarville (2025)
- Central Alexander Cnty Pwd (2024)
- Central High School (2024)
- Central Macoupin County Rwd (2025)
- Central Middle School (2024)
- Central Stickney Sd (2025)
- Centralia (2025)
- Cerro Gordo (2025)
- Chadwick (2024)
- Chain-o-lakes Mhp (2024)
- Chana Education Center (2024)
- Chandlerville (2025)
- Channahon (2025)
- Channahon East (2025)
- Chapin (2025)
- Charleston (2025)
- Chatham (2025)
- Chatsworth (2025)
- Chebanse (2023)
- Chenoa (2025)
- Cherry (2024)
- Cherry Valley (2025)
- Cherrydale Subdivision (2025)
- Chester (2025)
- Chesterfield (2025)
- Chicago (2025)
- Chicago Autism Academy (2025)
- Chicago Heights (2025)
- Chicago Ridge (2025)
- Chigakwa Park Estates (2025)
- Children of Promise (2025)
- Chillicothe (2025)
- Choate Mhc (2025)
- Chrisman (2025)
- Christ Mission Lutheran Church (2025)
- Christopher (2025)
- Chs Annawan (2024)
- Cicero (2025)
- Cisco (2025)
- Cisne (2025)
- Cissna Park (2025)
- Citgo Petroleum Corporation (2024)
- Citgo Refinery North Well (2023)
- Claremont (2025)
- Clarendon Hills (2025)
- Clark-edgar Rwd (2025)
- Clarks Mhp (2025)
- Clay City (2025)
- Clay County Water Inc (2023)
- Clayton (2025)
- Clayton-camp Point Water Commission (2025)
- Clear Water Service Corp (2025)
- Clifton (2025)
- Clifton Central High School (2025)
- Clinton (2025)
- Clinton County East Pwd (2023)
- Clover Leaf Village Mhp (2025)
- Coal City (2024)
- Coal Valley (2025)
- Coal Valley Pwd (2025)
- Cobden (2025)
- Coffeen (2022)
- Cog Hill Country Club (2025)
- Colchester (2025)
- Colfax (2025)
- College View Subdivision (2025)
- Collinsville (2025)
- Colona East (2025)
- Colona Park Llc - Formerly Kershaw Mhp (2010)
- Colona West (2024)
- Colonial Meadows Water Company (2025)
- Colp (2023)
- Columbia (2025)
- Commonwealth Edison Company (2024)
- Compton (2024)
- Comwell (2025)
- Concord (2025)
- Congerville (2025)
- Constellation Byron Generating Station (2024)
- Constellation Clinton Power Station (2023)
- Constellation Dresden Station (2024)
- Constellation Energy Generation Llc (2025)
- Constellation Services & Training Center (2025)
- Constellation/lasalle Cnty Gen Station (2024)
- Cooks Mills Water Association (2024)
- Cooksville (2025)
- Cordova (2025)