For Lake Canyon Community Services District
Santa Clara County, California

This project included the design and construction of a small diameter effluent sewer system and a community leachfield to serve the 60-home community of Lake Canyon located in the Santa Cruz Mountains. Questa completed the project Wastewater Facilities Plan in 1992 and successfully aided the community in receiving SWRCB grant approval for design and construction. Questa was subsequently retained for design and construction management services for the system, which went on-line in 1997.

The community is situated in a steep wooded canyon and historically relied on individual septic systems, many of which encroached closely on the local stream or had failed. Because of the steep terrain, the design included new on-lot septic tanks with installation of a small-diameter gravity effluent/STEP sewer system. The leachfield, a dual pressure-dosed system designed for 17,000 gpd, is situated in an easement obtained on neighboring property. A central (triplex) lift station and 2,600-foot long force main conveys effluent to the disposal site. Questa provides ongoing system monitoring and maintenance.