In Pauma Valley, water comes from Yuima Municipal Water District or Rancho Pauma Mutual Water Company depending on the parcel. Yuima says it runs a backflow program to protect the public supply; its specific rules, and any for Rancho Pauma Mutual, were not in what we reviewed. Call the number on this page to be connected with a local plumber in Pauma Valley.
Which water company serves my Pauma Valley parcel?
The Pauma Valley Community Services District lists two water providers for the area, Yuima Municipal Water District and Rancho Pauma Mutual Water Company, without spelling out which lands each covers. Yuima serves about 21 square miles of Pauma Valley through roughly 346 connections, and some lands were left outside Yuima when it formed. Your bill settles the question. Yuima is at (760) 742-3704; Rancho Pauma Mutual's office is (760) 615-4050, with an after-hours water emergency line at (760) 525-0364.
Does grove irrigation need backflow protection?
Almost always. Pauma Valley is an agricultural valley at the foot of the Palomar Mountains, and citrus and avocado groves are a big part of the landscape. Irrigation systems that run fertilizer through the lines are among the highest backflow hazards there are: a pressure drop on the supply side can draw that mix back toward the water company's pipe. A reduced pressure assembly is the usual protection for that kind of service, and a residential yard sprinkler typically gets a smaller device.
What does Yuima require?
Yuima states that it is responsible for protecting the public water supply from contamination and that it runs a backflow program. How often devices are tested, which testers are accepted and how results are filed were not in the material we reviewed, so ask Yuima before booking. Yuima blends Pauma basin well water with treated imported water. Rancho Pauma Mutual customers should ask that company directly whether it has testing requirements. Watch for these signs either way:
- Water leaking from a relief port during irrigation
- A device cracked by a cold night or bleached by sun
- A new fertilizer injector on a grove line
- Low pressure in a block after a repair
Local note
Pauma Valley is unincorporated, so adding or moving a device that changes the plumbing goes through the County of San Diego Planning & Development Services. Mention to the plumber whether the device serves a home, a grove or both; agricultural assemblies are often larger, and a map or pin of the device location on a large parcel shortens the visit.
Backflow Testing questions in Pauma Valley
How do I find out which water agency serves my address?
What happens if my assembly fails the test?
Why does a sprinkler or irrigation system need backflow protection?
Can I take out an old backflow device I no longer use?
More plumbing services in Pauma Valley
Backflow Testing nearby
Helpful guides
Last updated: