| PEWAUKEE CITY WATER AND SEWER UTILITY Groundwater | WI2680214 | 11 | 3 | |
| SAUKVILLE WATERWORKS Groundwater | WI2460134 | 9 | 3 | |
| WESTON MUNICIPAL UTILITIES Groundwater | WI7370163 | 8 | 2 | |
| HARTLAND WATERWORKS Groundwater | WI2680205 | 7 | 2 | |
| LA CROSSE WATERWORKS Groundwater | WI6320309 | 7 | 2 | |
| RIB MOUNTAIN SANITARY DIST Groundwater | WI7370660 | 7 | 2 | |
| MARSHFIELD UTILITIES Groundwater | WI7720165 | 7 | 2 | |
| PRESCOTT WATERWORKS Groundwater | WI6480243 | 6 | 2 | |
| HARTFORD WATERWORKS, WI Groundwater | WI2670110 | 4 | 2 | |
| CONCOR TOOL & MACHINE INC Groundwater | WI8581084 | 4 | 2 | |
| STURGEON BAY WATERWORKS Groundwater | WI4150526 | 2 | 2 | |
| SCHOFIELD WATERWORKS Groundwater | WI7370162 | 6 | 1 | |
| SHEBOYGAN TN WATERWORKS Groundwater | WI4600403 | 5 | 1 | |
| TOMAHAWK WATERWORKS Groundwater | WI7350127 | 5 | 1 | |
| RHINELANDER WATER & WASTEWATER Groundwater | WI7440126 | 4 | 1 | |
| LAKE GENEVA UTILITY COMMISSION Groundwater | WI2650066 | 3 | 1 | |
| WAUPACA WATERWORKS Groundwater | WI4690402 | 3 | 1 | |
| MEDFORD WATERWORKS Groundwater | WI8610125 | 3 | 1 | |
| PALMYRA WATERWORKS Groundwater | WI1280112 | 2 | 1 | |
| KEWASKUM WATERWORKS Groundwater | WI2670112 | 2 | 1 | |
| WEST BEND WATERWORKS Groundwater | WI2670120 | 2 | 1 | |
| PRAIRIE DU CHIEN WATERWORKS Groundwater | WI6120250 | 2 | 1 | |
| EAU CLAIRE WATERWORKS Groundwater | WI6180230 | 2 | 1 | |
| MONONA WATERWORKS Groundwater | WI1130245 | 5 | 0 | |
| BROOKFIELD WATER UTILITY Groundwater | WI2680253 | 5 | 0 | |
| SLINGER WATER UTILITY Groundwater | WI2670116 | 3 | 0 | |
| TOMAH WATERWORKS Groundwater | WI6420254 | 3 | 0 | |
| MADISON WATER UTILITY Groundwater | WI1130224 | 2 | 0 | |
| MT HOREB WATERWORKS Groundwater | WI1130247 | 2 | 0 | |
| OCONOMOWOC WATERWORKS Groundwater | WI2680227 | 2 | 0 | |
| HUDSON WATERWORKS Groundwater | WI6560087 | 2 | 0 | |
| PORTAGE WATERWORKS Groundwater | WI1110039 | 1 | 0 | |
| STOUGHTON WATERWORKS Groundwater | WI1130078 | 1 | 0 | |
| MCFARLAND WATERWORKS Groundwater | WI1130241 | 1 | 0 | |
| VERONA WATERWORKS Groundwater | WI1130259 | 1 | 0 | |
| MAYVILLE WATERWORKS Groundwater | WI1140057 | 1 | 0 | |
| BELOIT CITY OF Groundwater | WI1540112 | 1 | 0 | |
| REEDSBURG WATERWORKS Groundwater | WI1570102 | 1 | 0 | |
| CEDARBURG L & W COMMISSION Groundwater | WI2460108 | 1 | 0 | |
| GRAFTON WATERWORKS Groundwater | WI2460111 | 1 | 0 | |
| UNION GROVE WATERWORKS Groundwater | WI2520200 | 1 | 0 | |
| WATERFORD WATERWORKS Groundwater | WI2520202 | 1 | 0 | |
| YORKVILLE UTILITY DIST 1 Groundwater | WI2521735 | 1 | 0 | |
| EAST TROY WATERWORKS Groundwater | WI2650123 | 1 | 0 | |
| MT ZION CHRISTIAN CHURCH Groundwater | WI2650822 | 1 | 0 | |
| GERMANTOWN WATER UTILITY Groundwater | WI2670105 | 1 | 0 | |
| JACKSON WATERWORKS Groundwater | WI2670111 | 1 | 0 | |
| SUSSEX VILLAGE HALL & WATER UTILITY Groundwater | WI2680233 | 1 | 0 | |
| TOWN OF BROOKFIELD SAN DIST 4 Groundwater | WI2680239 | 1 | 0 | |
| NEW BERLIN WEST MIDDLE HIGH SCHOOL Groundwater | WI2680813 | 1 | 0 | |
| MUSKEGO WATER UTILITY Groundwater | WI2681741 | 1 | 0 | |
| SUAMICO WATERWORKS Groundwater | WI4051031 | 1 | 0 | |
| LEDGEVIEW TN SANITARY DIST 2 Groundwater | WI4051418 | 1 | 0 | |
| HARRISON UTILITIES - FKA WAVERLY SD Surface Water | WI4080076 | 1 | 0 | |
| HILBERT WATERWORKS Groundwater | WI4080269 | 1 | 0 | |
| FOREST JUNCTION PUB UTIL Groundwater | WI4080377 | 1 | 0 | |
| NORTH FOND DU LAC WATERWORKS Groundwater | WI4200405 | 1 | 0 | |
| FOND DU LAC WATERWORKS Groundwater | WI4200469 | 1 | 0 | |
| PESHTIGO WATERWORKS Groundwater | WI4380442 | 1 | 0 | |
| OCONTO WATERWORKS Groundwater | WI4430495 | 1 | 0 | |
| DARBOY SANITARY DIST 1 Groundwater | WI4450117 | 1 | 0 | |
| APPLETON WATERWORKS Surface Water | WI4450333 | 1 | 0 | |
| KAUKAUNA UTILITIES Groundwater | WI4450336 | 1 | 0 | |
| LITTLE CHUTE WATERWORKS Groundwater | WI4450338 | 1 | 0 | |
| KIMBERLY WATERWORKS Groundwater | WI4450342 | 1 | 0 | |
| COMBINED LOCKS WATERWORKS Groundwater | WI4450409 | 1 | 0 | |
| ST EDWARD SCH & CH Groundwater | WI4450623 | 1 | 0 | |
| SHAWANO LK SAN DIST 1 Groundwater | WI4590457 | 1 | 0 | |
| NEW LONDON WATERWORKS Groundwater | WI4690398 | 1 | 0 | |
| RICE LAKE WATERWORKS Groundwater | WI6030138 | 1 | 0 | |
| CHIPPEWA FALLS WATERWORKS Groundwater | WI6090456 | 1 | 0 | |
| BLACK RIVER FALLS WATERWORKS Groundwater | WI6270244 | 1 | 0 | |
| HOLMEN WATERWORKS Groundwater | WI6320306 | 1 | 0 | |
| ONALASKA WATERWORKS Groundwater | WI6320327 | 1 | 0 | |
| ELLSWORTH WATERWORKS Groundwater | WI6480239 | 1 | 0 | |
| NEW RICHMOND WATERWORKS Groundwater | WI6560126 | 1 | 0 | |
| WAUSAU WATERWORKS Groundwater | WI7370102 | 1 | 0 | |
| PLOVER WATERWORKS Groundwater | WI7500726 | 1 | 0 | |