Handbook: Sewer System Infrastructure Analysis and ...
----- CHAPTER 4 Sewer System Evaluation 4.1 Introduction The SewerSystem Evaluation Su rvey (SSES) is the third phase of an overall sewer system evaluation (See Figure 3-1). The purpose of the SSES is to quantify the amount of infiltration/inflow (I/I) and rainfall induced infiltration (Rll) that can be reduced and the cost of such reduction on a source-by-source and sub-system basis.
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