This is an odd one. The only whole house shut off is on the city side of my meter and the person from public works I talked to said only the city could operate it and if it were to break while I operated it I could be held financially liable.
Does anyone know of a ballpark price to get a plumber to install on my side of the meter?
I have one, but it’s lost under grass that grew over it. Yours might be the same. Anyone know how to locate it?
Poke around with a Johnson bar until you hear a metallic sound. Then bury some single mode fiber next to it.
A metal detector may work depends on what else is around.
Get a poker, find the street valve and where the plumbing enters your house and poke between the two spots until you find it. Alternatively you could pull your plans from the city.