. >> john pereira is talking about power to his ranch, potentially being cut off. >> p-g-and-e's coworkers and p-g-and-e's meteorologists have been watching a weather system and conditions on the ground. we're seeing in the next few days breezy offshore winds, low humidity, and all these conditions sort of come together to create elevated risks for wildfires. >> p-g-and-e's warning of possible public safety power shutoffs starting monday. >> if we go forward with this public safety power shut off, it could potentially impact about 13,500 customers spread across targeted portions of 13 counties. >> this is a young horse. we're sending out, and john's ranch in contra costa county is one of those targeted areas. i have like nine wells in the valley all over tassajara. and p-g-and-e's goes down so my cattle can't drink. my horses don't drink. so it's, you know, pretty traumatic to, you know, an operation like mine. >> and a short drive down these rural roads is alameda county, another area that could feel the impact. and here at the castro valley library is one of the locations. p-g-and-e's is