| Business | Phone |
| Culligan Po Box 1140, Livermore 94551 | (925) 827-0222 |
| Ionics Inc 1971 Rutan Dr, Livermore 94551 | (925) 456-7000 |
| Patterson Pass-Alameda County 8750 Patterson Pass Rd, Livermore 94550 | (925) 373-2488 |
| Peppertree Pure Water Co 920 Murrieta Blvd, Livermore 94550 | (925) 373-6922 |