| Business | Phone |
| Oases International 4800 Golden Foothill Pkwy, El Dorado Hills 95762 | (916) 933-1542 |
| Innovative Filtration 5075 Hillsdale Cir, El Dorado Hills 95762 | (916) 933-6590 |
| Mtb Water Systems & Svc 2299 Loch Way, El Dorado Hills 95762 | (916) 939-0728 |
| Water Right Po Box 4932, El Dorado Hills 95762 | (916) 939-7426 |