Change street name from Mammouth Way to Mammoth Way. Change street name to Mammoth Way within El Dor

The original spelling of our street name was Mammouth Way. The County Assessor misspelled our street name to Mammoth Way. The Post Office was given the spelling of Mammoth. All vendors use the spelling Mammoth. Online Maps have Mammoth as the spelling.
There have been issues with the spelling when it comes to signing up at schools, signing up for credit cards, phone / cable service, etc. When we bought this home 2 months ago, the paperwork was all done under the spelling Mammoth Way. The following households on Mammouth Way approve for the street sign name to be changed to Mammoth Way (without the U) and for the change to take affect in El Dorado County: 950 (Sally & Robert Montes), 951 (Donna Kretchman), 958 (Gabe & Amie Brink)