RES 83214 - Laserfiche WebLink

E. Current or Projected Sew~p.~_L.!ow Requireme_nt Criteria The current or projected sewage flow to be generated for the indivi- dual areas in this study were based on the following criteria: 1) Unit loading per Lowry Study(a) with exceptions as noted in Table 1. 2) Peaking factor of 2.0 for peak wet weather flow (PWWF). , 3) Infiltration alIowance of 600 gpd/Ac. The unit loading in the Black report was based on the anticipated land use as of 1967. The unit loading in this study is based on existing and more updated projected land use information. The current or projected land use, unit loading, and PWWF sewage flow for the individual areas are listed in Table 1. F. Maximum Pipe Capacity The maximum capacity of each section of the trunk line is shown in the various Figures. The capacity is determined from the existing pipe sizes and slopes, based on the assumption that the line is flowing fulI, but not under pressure. G. Flow Comparison Criteria The maximum capacity of the trunk line has been compared against the flows generated under the following conditions: l) All areas allowed to flow only the amount of sewage it was originally entitled. 2) All areas were allowed to generate their current or projected flow requirement. (a) Report entitled "Waste Water Management Plan for Dublin-San Ramon Services District and City of Pleasanton to Accommodate the Hacienda Business Park," dated February 1981 and prepared by Lowry & Associates for Prudential Insurance Company of America and CPS & Associates.