| MAGNOLIA-PINNACLE PLACE SUBDIVISION | DES PERES, LA | 132 | 30 | — |
| CAMP JOY MARINA WATER SYSTEM | HAUGHTON, LA | 132 | 61 | — |
| LACOMBE-MANDEVILLE HEADSTART | ROBERT, LA | 130 | 86 | — |
| US FORESTRY - GUM SPRINGS | WINNFIELD, LA | 130 | 33 | — |
| TOP VELOCITY | COVINGTON, LA | 129 | 0 | — |
| ST JOSEPH ABBEY | ST. BENEDICT, LA | 127 | 123 | — |
| ST TAM PARISH - TAMANEND | COVINGTON, LA | 125 | 0 | — |
| EXXONMOBIL PRODUCT SOLUTIONS-RESINS | BATON ROUGE, LA | 125 | 10 | — |
| FOLGER COFFEE CO-LACOMBE DISTRIB CNTR | NEW ORLEANS, LA | 125 | 0 | — |
| GLENWOOD BAPTIST YOUTH CAMP | FOLSOM, LA | 125 | 8 | — |
| COLWORTH PLACE WATER SUPPLY | KEITHVILLE, LA | 123 | 4 | — |
| BARRON BAYOU ESTATES | SHREVEPORT, LA | 123 | 24 | — |
| UTILITIES INC - OAKRIDGE | MANDEVILLE, LA | 123 | 6 | — |
| RODDY ROAD VILLAGE ASCENSION, LLC | MILTON, LA | 120 | 50 | — |
| PEACEFUL PINES MHP WATER SYSTEM | SHREVEPORT, LA | 120 | 155 | — |
| BIG OAKS WATER SYSTEM | KEITHVILLE, LA | 120 | 2 | — |
| LAKEVIEW ESTATES SUBD WS | MANDEVILLE, LA | 120 | 105 | — |
| UTILITIES INC -BANKSTON | MANDEVILLE, LA | 120 | 4 | — |
| HAPPY ACRES MOBILE HOME PARK | KOKOMO, LA | 120 | 63 | — |
| BIOLAB, INC | WESTLAKE, LA | 120 | 14 | — |
| KINSEY SCOUT RESERVATION WATER SYSTEM | SHREVEPORT, LA | 120 | 31 | — |
| WEYERHAEUSER NR - ARCADIA OSB | SIMSBORO, LA | 120 | 41 | — |
| BAYOU SHRIMP PROCESSORS WATER SYSTEM | DELCAMBRE, LA | 120 | 21 | — |
| LAKESIDE RV PARK | MINDEN, LA | 120 | 76 | — |
| MAGNOLIA-COUNTRY PINES | DES PERES, LA | 117 | 33 | — |
| STARC FREAMAUX | SLIDELL, LA | 115 | 2 | — |
| EDWARDS MILLCREEK WATER SYSTEM | BIENVILLE, LA | 114 | 228 | — |
| DIVERSION WATER - CYPRESS POINT | PRAIRIEVILLE, LA | 114 | 15 | — |
| PARKLAND TRAILER PARK WATER SYSTEM | CARENCRO, LA | 112 | 39 | — |
| DIVERSION WATER - CYPRESS LAKES | PRAIRIEVILLE, LA | 111 | 15 | — |
| LINDA LANE WATER SYSTEM | KEITHVILLE, LA | 111 | 23 | — |
| MAGNOLIA-JONES ROLLING RIDGE | DES PERES, LA | 111 | 93 | — |
| SOUTHEAST HODGE WATER SYSTEM | HODGE, LA | 111 | 233 | — |
| ALMA PLANTATION LTD | LAKELAND, LA | 111 | 57 | — |
| MY PLACE MOBILE HOME PARK WATER SYSTEM | NEW IBERIA, LA | 111 | 159 | — |
| PINNACLE POLYMERS | GARYVILLE, LA | 110 | 185 | — |
| SETTLED INN VILLAGE WATER SYSTEM | SHREVEPORT, LA | 108 | 73 | — |
| CANE VIEW MOBILE HOME VILLAGE | AUSTIN, LA | 108 | 57 | — |
| LAKE FAUSSE POINTE PARK WATER SYSTEM | ST. MARTINVILLE, LA | 106 | 21 | — |
| EAST PARK SUBDIVISION WATER SYSTEM | LAKE CHARLES, LA | 102 | 78 | — |
| COROLLAS SHOPPING CENTER | MANDEVILLE, LA | 101 | 6 | — |
| WARNERTON QUICK STOP | TYLERTOWN, LA | 101 | 18 | — |
| MAGNOLIA-DIXIE GARDEN-KINGS HWY | DES PERES, LA | 100 | 85 | — |
| CREEK PLACE APARTMENTS | SLIDELL, LA | 100 | 29 | — |
| INDIAN HILLS TRAILER PARK | SLIDELL, LA | 100 | 72 | — |
| MAGNOLIA-BEVERLY HEIGHTS | DES PERES, LA | 100 | 56 | — |
| ORLEANS ROOM | GONZALES, LA | 100 | 7 | — |
| LAKE CHARLES HARBOR & TERMINAL COKE PLNT | LAKE CHARLES, LA | 100 | 35 | — |
| CROSSFIT WATER SYSTEM | LAKE CHARLES, LA | 100 | 0 | — |
| DELTECH CORPORATION | BATON ROUGE, LA | 100 | 97 | Detected |