eHT was initially selected to evaluate the SRSUD Concentrate Disposal System.  This evaluation included a review of the existing RO treatment system and evaporation ponds to determine system capacity and provide recommendations for improvements to those system.  Once that evaluation was completed, eHT was selected to provide design and construction services for improvements to the concentrate evaporation ponds.  These improvements include the installation of two (2) concentrate evaporators, construction of evaporator connection stations at various locations around the five (5) evaporation ponds, and electrical system improvements.   In addition to the design of these improvements, eHT assisted SRSUD in obtaining an air permit by rule for the installation of evaporators in the concentrate ponds.