| STONINGTON INSTITUTE - MAIN BUILDING | NORTH STONINGTON, CT | 77 | 89 | — |
| STONINGTON INSTITUTE - NORTH BUILDING | NORTH STONINGTON, CT | 77 | 8 | — |
| STONINGTON INSTITUTE - KNOLLWOOD | NORTH STONINGTON, CT | 77 | 39 | — |
| STONINGTON INSTITUTE - LODGE | NORTH STONINGTON, CT | 77 | 7 | — |
| HOPKINS SUPPLY | WARREN, CT | 77 | 430 | — |
| CTWC - BIRCHWOOD HEIGHTS | CLINTON, CT | 76 | 50 | — |
| MIDDLEBURY COMMONS | MIDDLEBURY, CT | 76 | 222 | — |
| AQUARION-BERKSHIRE | SHELTON, CT | 75 | 19 | — |
| NEWPORT ACADEMY (TODD HILL) | WATERTOWN, CT | 75 | 0 | — |
| CANDLEWOOD INN | BROOKFIELD, CT | 75 | 46 | — |
| CHARLIE BROWN CAMPGROUND | EASTFORD, CT | 75 | 11 | — |
| CHARLIE BROWN CAMPGROUND-REC HALL | EASTFORD, CT | 75 | 55 | — |
| MASONIC TEMPLE ASSN OF EAST HAMPTON | EAST HAMPTON, CT | 75 | 66 | — |
| MIDDLEBURY HAMLET | PROSPECT, CT | 75 | 110 | Clean |
| A BEHAVIORAL APPROACH | CLINTON, CT | 75 | 0 | — |
| BST SYSTEMS, INC. | PLAINFIELD, CT | 75 | 0 | — |
| HIDDEN ACRES CAMPGROUND | PRESTON, CT | 75 | 31 | — |
| COMCAST OF CT/GA/MA/NH/NY/NC/VA/VT, LLC | BERLIN, CT | 75 | 30 | — |
| STAFFORD SPRINGS KINGDOM HALL | STAFFORD SPRINGS, CT | 75 | 6 | — |
| THE WESTON FIELD CLUB - WELL #2 | WESTON, CT | 75 | 256 | — |
| L.C. DOANE CO. | IVORYTON, CT | 74 | 11 | — |
| ASHLAND POND MOBILE HOME PARK | NORWICH, CT | 74 | 256 | — |
| 283 LITCHFIELD RD, LLC | HARWINTON, CT | 74 | 387 | — |
| BRIGHTPATH MADISON - WEST | MADISON, CT | 73 | 265 | — |
| SMT CORPORATION | SANDY HOOK, CT | 73 | 71 | — |
| NORTH PURCHASE ELDERLY HOUSING | BETHLEHEM, CT | 72 | 96 | — |
| WOODCREEK VILLAGE CONDOMINIUM ASSN, INC | DANBURY, CT | 72 | 185 | — |
| OAK GROVE SENIOR HOUSING CORP | ROCKY HILL, CT | 72 | 10 | — |
| ESSEX GARDENS | FAIRFIELD, CT | 72 | 297 | — |
| CRANBERRY BOG APARTMENTS | DANIELSON, CT | 72 | 269 | — |
| ROUND HILL LLC - WELL# 1&2 | GRISWOLD, CT | 72 | 226 | — |
| STIX N STONES MARKETPLACE | STORRS, CT | 72 | 0 | — |
| LAKESIDE MANOR APARTMENTS | STAMFORD, CT | 72 | 217 | — |
| MAYFLOWER SPA | WASHINGTON, CT | 72 | 0 | — |
| AQUARION-WOODRICH VILLAGE | SHELTON, CT | 72 | 177 | Detected |
| WOODBURY PLACE CONDOMINIUM ASSN | SOUTHBURY, CT | 72 | 164 | — |
| BLONDIE'S COUNTRY DINER | BOLTON, CT | 70 | 14 | — |
| ROTO FRANK OF AMERICA | CHESTER, CT | 70 | 127 | — |
| FIRST CONGREGATIONAL CHURCH OF LEBANON | LEBANON, CT | 70 | 24 | — |
| COZY HILLS CAMPGROUND WELL #4 | BANTAM, CT | 70 | 24 | — |
| REYNOLDS SUBARU | LYME, CT | 70 | 272 | — |
| DISCOVERY ZONE LEARNING CNTR MARLBOROUGH | COLUMBIA, CT | 70 | 109 | — |
| MARINA COVE | UNCASVILLE, CT | 70 | 258 | — |
| OAKRIDGE GARDENS, LLC | WEST MYSTIC, CT | 70 | 695 | — |
| STATE POLICE BARRACKS TROOP E | MIDDLETOWN, CT | 70 | 63 | — |
| LITTLE LEARNERS CHILDREN'S CENTER | OAKDALE, CT | 70 | 61 | — |
| ROCKY GLEN MILL | BROOKLYN, CT | 70 | 564 | — |
| WOOD POND (WEST 1&2) | NORTH STONINGTON, CT | 70 | 19 | — |
| SECOND BAPTIST CHURCH | NORTH STONINGTON, CT | 70 | 116 | — |
| OLD LYME MARKETPLACE | GUILFORD, CT | 70 | 221 | — |