| Business | Phone |
| Pine Hills Mutual Water Co 3262 Pera Alta Dr, Julian 92036 | (760) 765-1243 |
| Cuyamaca Water District Po Box 609, Julian 92036 | (760) 765-1202 |
| North Peak Mutual Water Co 7465 Engineers Rd, Julian 92036 | (760) 765-1747 |
| Majestic Pines Water District 1405 Banner Rd, Julian 92036 | (760) 765-0532 |