A message from Chair Corless | March 22, 2020

Mono County California’s Eastern Sierra

Environmental Health

Wastewater

Septic System Permit Application - OWTS Permit

Septic System Permit Guide - OWTS Guide

Supporting Documents

OWTS Permit Application (33 KB)

OWTS Construction Guide (126 KB)

Web Links

California Environmental Reporting System

Contact Information

Mammoth Lakes Office
437 Old Mammoth Road, Ste 200
PO Box 3329
Mammoth Lakes, CA 93546
(760) 924-1830

Bridgeport Office
37 Emigrant Road
PO Box 476
Bridgeport, CA 93517
(760) 932-5580