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Repair of these leaks alone, however, would not make the system adequate for present and projected future wastewater flows. Although most of the present collection system would have adequate capacity currently without the inflow from leaks, the main lift station is under-sized for present as well as future flows. The two wastewater treatment plants are also under-sized for present and future flows. Planned Improvements The Construction Grants Program provides funds for rehabilitation of old collection systems, construction of new collection systems under certain conditions, and construction or expansion of treatment plants. P1 ant No. 1 Plant No. 1, the trickling filter plant, is 30 years old and would not be cost effective to renovate for the design year 2000. However, as an interim measure until 1984, the chlorine contact chamber could be expanded by 34% and the sludge drying beds expanded by 32%. These interim measures are not part of the Facility Plan. They are simply actions which the City could take to improve its sewage treatment until the new plant begins operation. Plant No. I will be taken out of service when the expansion of Plant No. 2 is completed and capable of receiving the additional flow. P1 ant No. 2 The capacity of Plant No. 2 has essentially been reached. It will be expanded to handle the flows from Plant No. I and future design flows. The expanded Plant No. 2 will continue to utilize the contact stabilization treatment process. Plant No. 2 will be expanded to a total capacity of 6.25 MGD average flow and 14.39 MGD two-hour peak flow. This expansion will enable the City of San Marcos to meet the permitted effluent limits of 20 mg/1 BOD5 and 20 mg/1 suspended solids up to the design year 2000. Main Lift Station & Trunk Main The main lift station will be expanded to pump the design flow rate to Plant No. 2. A new parallel line will be run from the main lift station to Plant No. 2. Additional Lift Station A small lift station will be constructed at Plant No. 1. This will pump the sewage collected at Plant No. i to the main lift station through 2