California

76 gas station has an rv dump with fresh water. As of March ’24
$7.50

H&H RV Repair & Storage
10951 Jacinto Way
Ventura, CA 93004
805-647-3176

http://hhrv.net/home.html

Tiny House Block offers a dump station for a $20 fee. The dump station can be found using their side entrance on Mount Laguna Drive. It is less than a 1/4 mile from the Burnt Rancheria Campground just turn right after the Pine House Cafe and you will find it! The address is 9849 Sunrise Hwy, Mt. Laguna CA, 91948. Please call 619-320-8099 to let them know when you are coming. Normal operating hours for the dump station are 9am-5pm. There is also a water spigot that can be used as well.

Scotts Flat Reservoir has a dump available for $15. Fresh water is also available.

23333 Scotts Flat Rd, Nevada City, CA 95959

https://goo.gl/maps/QzRudFnGhoTxATDE8

Rosamond Community Services District
$10 fee

Found this in google search. You can dump ($20). Get propane, fuel. Snacks, drinks, Gas and Diesel.

23891 Bridger Rd, Lake Forest, CA 92630

Sidewinder Chevron has a dump with rinse water for $10. No fresh water on site. There’s a rest stop in center median a few miles west with free fresh water.

Sans End RV Park
2209 W Winterhaven Drive
Winterhaven, CA 92283
For non-guest: RV Dump $15 / Water Fill $15 – AS OF FEB. 22, 2023

No propane.

Public dump station, 742 Grayson St, Berkeley CA 94710 / 510-644-8979. Free.

This dump is open Wednesday 1-2pm and has fresh water fill, with unlimited space (45+ foot OK). I understand these hours are limited: this site is catering to local RV homeless. Everyone is welcome. The site is operated by Rebuilding Together Easy Bay North with administrative contact (510) 644-8979. It is operated at no fee to dumpers.

Pilot travel center in Weed CA. has a dump station. Water is not marked as potable.
Interstate 5 exit 745.