The adage that engineers design treatment plants but operators make them work is never more true than at the Henry N. Wochholz Regional Water Recycling Facility in Yucaipa, Calif.
Managers Matt Harward and Kevin King and their staff have made numerous modifications and improvements to this advanced tertiary plant, upgraded in 1992 and again in 2006 to meet tightening discharge requirements, and to prepare for total water recycling in the near future. Among the improvements:Managing plant influent flow with equalization tanks.
Controlling algae growth on secondary clarifier weirs.
Fighting Nocardia filaments and resultant foaming.
Reducing ammonia recycle to the biological treatment system.“Our operators do
