Utilities in Illinois
27,127 systems (SDWIS/Fed snapshot). Search or browse pages — open any row for PFAS monitoring, violation counts, and filter recommendations.
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OAKVILLE COUNTRY CLUB
IL3017699 · 75 served
OAKWOOD BOTTOMS INTERPRETIVE
IL3117127 · 25 served
OAKWOOD CASTLE
IL0041368 · 200 served
OAKWOOD COUNTRY CLUB
IL3000547 · 100 served
OAKWOOD COUNTRY CLUB
IL0000547 · 25 served
OAKWOOD ESTATES
IL1670060 · 420 served
OAKWOOD HILLS COMMUNITY PARK
IL3137497 · 25 served
OAKWOOD HILLS VILLAGE HALL
IL3139428 · 25 served
OAKWOOD JR HIGH SCHOOL
IL3005595 · 168 served
OAKWOOD PLACE SUBDIVISION
IL0735140 · 40 served
OAKWOOD POOL AND TENNIS CLUB
IL3110650 · 250 served
OAKWOOD TWP HIGH SCHOOL
IL3005611 · 350 served
OAKWOOD TWP HIGH SCHOOL CUD 76
IL0005611 · 500 served
OAKWOOD WEST SUBDIVISION
IL0730070 · 57 served
OASIS
IL3008441 · 70 served
OASIS BUSINESS PARK
IL3150532 · 111 served
OASIS MHP
IL0315185 · 3,000 served
OASIS MHP
IL1135775 · 25 served
OASIS MOBILE HOME PARK A
IL0093369 · 1,776 served
OASIS MOBILE HOME PARK A
IL3093369 · 1,776 served
OASIS MOBILE HOME PARK B
IL0093377 · 1,776 served
OASIS MOBILE HOME PARK B
IL3093377 · 1,776 served
OASIS MOBILE HOME PARK C
IL0093328 · 1,776 served
OASIS MOBILE HOME PARK C
IL3093328 · 1,776 served
OASIS MOBILE HOME PARK D
IL0093336 · 1,776 served
OASIS MOBILE HOME PARK D
IL3093336 · 1,776 served
OASIS RESTRNT
IL0059857 · 200 served
OASIS TAVERN ROBBIE MAROON
IL3009050 · 50 served
OBENAUF DISPOSAL
IL0027979 · 25 served
OBENAUF DISPOSAL
IL3027979 · 25 served
OBENDORF
IL0030106 · 25 served
OBENDORF
IL3030106 · 25 served
OBERWEIS DAIRY
IL0000158 · 200 served
OBERWEIS DAIRY
IL3000158 · 200 served
OBLONG
IL0330150 · 2,321 served
OBRIEN STEEL
IL3157347 · 150 served
OCCIDENTAL CHEMICAL CO
IL0009688 · 25 served
OCCIDENTAL CHEMICAL CO
IL3009688 · 25 served
OCONEE CHRISTIAN ACADEMY
IL3005504 · 46 served
OCONEE SCHOOL
IL0005504 · 25 served
OCONEE UNITED METHODIST CHURCH
IL0044230 · 60 served
OCONEE UNITED METHODIST CHURCH
IL3044230 · 60 served
OCONNELLS YOGI BEAR - BEACH/OFFICE
IL3120543 · 175 served
OCONNELLS YOGI BEAR - CINDY #1
IL3017368 · 150 served
OCONNELLS YOGI BEAR - CINDY BACKUP
IL3163022 · 25 served
OCONNELLS YOGI BEAR - YOGI SLIDE BACKUP
IL3163030 · 25 served
OCONNELLS YOGI BEAR -CONFERENCE/CAMPGROU
IL3131300 · 560 served
OCONNERS CABINETS
IL0061739 · 300 served
OCONNERS CABINETS
IL3061739 · 300 served
OCOYA GRAIN CO
IL0056606 · 30 served