| LAS CRUCES MUNICIPAL WATER SYSTEM | 98,175 | 478 | Detected |
| NEW MEXICO STATE UNIVERSITY | 24,000 | 241 | Detected |
| CAMINO REAL REGIONAL UTILITY AUTHORITY | 19,466 | 794 | Detected |
| DONA ANA MDWCA | 17,067 | 209 | Detected |
| LAKE SECTION WATER COMPANY | 14,619 | 151 | Detected |
| LOWER RIO GRANDE PWWA SOUTH VALLEY | 11,542 | 69 | Detected |
| MOONGATE WEST | 10,708 | 166 | Detected |
| MOONGATE WATER SYSTEM | 9,170 | 84 | Detected |
| ANTHONY W&SD | 8,691 | 270 | Detected |
| UNIVERSITY ESTATES WATER SYSTEM (LCU) | 4,526 | 66 | Detected |
| WHITE SANDS MISSILE RANGE (MAIN POST)-FF | 4,300 | 213 | Clean |
| HACIENDA ACRES WATER SYSTEM (LCU) | 3,042 | 29 | — |
| GARFIELD MDWCA | 2,504 | 226 | — |
| HATCH WATER SUPPLY SYSTEM | 2,366 | 40 | — |
| MESILLA WATER SYSTEM | 2,167 | 147 | — |
| LOWER RIO GRANDE PWWA EAST MESA | 2,104 | 37 | — |
| NASAJSC WHITE SANDS TEST FACILITY- FF | 1,600 | 344 | — |
| LA UNION MDS & WA | 1,272 | 162 | Detected |
| CBG WATER COMPANY | 1,115 | 52 | — |
| LAS ALTURAS ESTATES (LCU) | 936 | 6 | — |
| PICACHO MDWCA | 847 | 18 | — |
| LEASBURG MDWCA | 831 | 46 | — |
| CHAMBERINO MDWC & SA | 777 | 9 | — |
| DESERT AIRE MDW AND SWA | 759 | 55 | — |
| SAN ANDRES ESTATES WATER SYSTEM (LCU) | 747 | 7 | — |
| ALTO DE LAS FLORES MDWCA | 695 | 24 | — |
| LOWER RIO GRANDE PWWA RINCON | 582 | 32 | — |
| VILLA DEL SOL MOBILE HOME PARK | 551 | 240 | — |
| SAN PABLO MDWCA | 548 | 8 | — |
| ST JOHNS MHP | 445 | 69 | — |
| DOVE CANYON LLC | 393 | 78 | — |
| DONA ANA RANGE CAMP-FEDERAL FACILITY | 300 | 65 | — |
| UNION PACIFIC STRAUSS YARD | 300 | 25 | — |
| ALAMEDA ACRES MHP | 291 | 49 | — |
| LOWER RIO GRANDE PWWA VALLE DEL RIO | 252 | 29 | — |
| DRIPPING SPRINGS BLM | 250 | 59 | — |
| SCENIC VIEW REST AREA-STATE HWY DEPT | 250 | 8 | — |
| COUNTRY MOBILE MANOR | 205 | 65 | — |
| FORT SELDON REST AREA-STATE HWY DEPT. | 200 | 29 | — |
| WESTERN SKY'S RV PARK | 200 | 69 | — |
| TALAVERA MDWCA | 166 | 94 | — |
| LAS CRUCES MOBILE HOME PARK | 163 | 54 | — |
| VALVERDE MOBILE HOME PARK | 160 | 63 | — |
| SONTERA ACRES MOBILE MANOR | 156 | 53 | — |
| MASSON FARMS OF NEW MEXICO | 150 | 67 | — |
| WINTERHAVEN MDWC AND SWA | 147 | 238 | — |
| ADMIRAL BEVERAGE CORPORATION | 140 | 30 | — |
| VISTA REAL MHP | 124 | 72 | — |
| LAS CRUCES KOA | 120 | 24 | — |
| COVERED WAGON MOBILE HOME MANOR | 100 | 183 | — |