| COLUMBIA CITY OF (SC4010001) | 319,500 | 76 | Detected |
| FORT JACKSON (SC4010501) | 31,000 | 44 | Detected |
| HOPKINS COMMUNITY WATER SYSTEM (4020002) | 2,200 | 0 | — |
| MCCRADY TRAINING CENTER (SC4070911) | 1,200 | 29 | — |
| BGWC RAINTREE ACRES (SC4050015) | 799 | 7 | — |
| SYLVAMO EASTOVER MILL (SC4030005) | 750 | 12 | — |
| EASTOVER TOWN OF (SC4010002) | 700 | 116 | — |
| BAY CAPITAL WATER WORKS (SC4050031) | 647 | 0 | — |
| BGWC CHARLESWOOD S/D (4050008) | 484 | 1,678 | — |
| BGWC FARROWWOOD ESTATES (SC4050012) | 356 | 468 | — |
| BGWC STONEGATE (SC4050014) | 352 | 8 | — |
| FT JACKSON-OHIO RANGE 20 (4070938) | 300 | 0 | — |
| BGWC OAKRIDGE HUNT CLUB (SC4050019) | 208 | 467 | — |
| BGWC WASHINGTON HEIGHTS (SC4050013) | 190 | 461 | — |
| SILVER HILL MANUF HOME COMM. (SC4060019) | 180 | 119 | — |
| CONGAREE NATIONAL PARK (4070600) | 170 | 0 | — |
| DESCI WATEREE STATION (SC4030001) | 148 | 17 | — |
| PALMETTO PARK (4060006) | 132 | 56 | — |
| BGWC SPRINGFIELD ACRES (SC4050006) | 130 | 456 | — |
| BGWC HARMON HILL ESTATES (SC4050011) | 126 | 456 | — |
| LAKEWOOD MHP (SC4060032) | 110 | 96 | — |
| HWY 378 DINER (SC4070203) | 100 | 0 | — |
| RICHLAND ESTATES MHC (SC4060038) | 90 | 71 | — |
| MANCHESTER FARMS (SC4030801) | 85 | 0 | — |
| SANDY HILL MHP (SC4060064) | 81 | 85 | — |
| FREEWAY MHP (SC4060005) | 80 | 72 | — |
| MERIDIAN BRICK (SC4030007) | 70 | 22 | — |
| MEADOW LANE MHP (SC4060014) | 70 | 66 | — |
| WINSOR VALLEY MHP (SC4060008) | 68 | 81 | — |
| RICHLAND CO/POND DRIVE (SC4050042) | 55 | 11 | — |
| LANDS POINT S/D (SC4050004) | 50 | 22 | — |
| RCRC/CROSSROAD PARK (SC4070112) | 50 | 103 | — |
| CRESTHAVEN MHP (SC4060001) | 37 | 55 | — |
| BEL AIR MHP (SC4060009) | 34 | 69 | — |
| KEMIRA CHEMICALS INC (SC4030013) | 33 | 18 | — |
| PINEY LANE MHP (SC4060052) | 32 | 58 | — |
| WOODSMOKE CAMPGROUND (SC4070680) | 30 | 5 | — |
| PRIMO-WALMART 4440 (4080025) | 30 | 0 | — |
| 7730 BLUFF ROAD CONVENIENCE (SC4074011) | 27 | 0 | — |
| CEDAR CREEK MHP (4060035) | 26 | 14 | — |
| FT JACKSON-WESTON LAKE (SC4070651) | 26 | 1 | — |
| FT JACKSON-ALGIERS (SC4070908) | 26 | 0 | — |
| BLYTHEWOOD STOP N SHOP (4070914) | 26 | 17 | — |
| FT JACKSON-OMAHA BEACH (SC4070917) | 26 | 1 | — |
| CENTER EXPRESS #3 (SC4070925) | 26 | 0 | — |
| MIDWAY ONE STOP (4070931) | 26 | 4 | — |
| AM PM QUICK STOP (SC4070940) | 26 | 1 | — |
| SCARNG - KASSERINE PASS (4070956) | 26 | 0 | — |
| DOLLAR GENERAL GADSDEN (SC4070983) | 26 | 0 | — |
| THE FRIENDLY CATERER (SC4072007) | 26 | 0 | — |