Sawmill Tank Replacement

Calaveras County Water District (CCWD) proposes the replacement of the existing approximately 3.0 million-gallon potable water storage tank currently serving the Dorrington and Big Trees rural residential communities. The existing water tank was built in 1977 with improvements in 2012 and 2018. The current tank exceeds the size needed for normal water demands of the nearby communities. The excessive size and age-related deterioration of the tank has caused water quality issues from chlorinated organics. CCWD proposes to construct two 0.5-million-gallon tanks on new concrete foundations on land adjacent to the existing tank site; land for the replacement tanks will be obtained via an easement or lot line adjustment. Upon completion of the new water storage tanks, the CCWD will demolish the deteriorating tank and remove the existing concrete foundation. The two proposed replacement tanks would be located adjacent to the existing tank. Tank constructio_n and piping installation will require approximately 20,000 square feet of disturbance in this relatively level and recently-logged area, Access to replacement tank site will be accessible from the existing tank site for operation and maintenance. The replacement tank site is part of a larger timber management parcel owned by Sierra Pacific Industries (SPI); CCWD will obtain rights to construct the replacement tanks on the adjacent site from SPI. Existing tree cover on the replacement tank site has been removed by the owner in accordance with an approved Timber Harvest Plan No. 4-24-00165-CAL known as the Crockett THP. As required by the California Forest Practice Act, SPI performed required technical studies of the larger THP parcel including the proposed replacement tank site. Technical studies included botanical, wildlife and cultural resources database searches and surveys during preparation of the THP application.