Letter from Mr. Charles Senn, former Chairman of the NHEA, health director for the city of Los Angeles, & former professor of Sanitary Engineering at UCLA.
Approval from California Office of Environmental Quality stating the ability of the Hydrocor Zeta eliminating all sludge and explains how it solves sewage disposal in ANY soil.
Verification letter from a private school whom the Hydrocor Zeta design serviced a population of 140 to 210 for 12 years and was fully operational the entire time.
CITY/COUNTIES
County of Los Angeles - Dept of Public Health
Los Angeles County approval for install of Hydrocor Zeta design with 1 inch pvc drip irrigation field.
City of Corona - Parks and Rec
Verification letter from City of Corona - Parks & Recreation department stating operation of units with very little to no maintenance.
County of Riverside - Dept of Public Health
Riverside County approval for install of Hydrocor Zeta design and letter to encourage other counties to expedite approvals.