City of Morgan Hill Sewer System Master Plan 2017

x Document growth planning assumptions and known future developments. x Summarize the sewer system performance criteria and design storm event. x Project future sewer flows. x Develop and calibrate a new hydraulic model based on the City’s Geographic Information Systems (GIS). x Evaluate the adequacy of capacity for the sanitary sewer system facilities to meet existing and projected peak dry weather flows and peak wet weather flows. x Recommend a capital improvement program (CIP) with an opinion of probable construction costs. x Perform a capacity allocation analysis for cost sharing purposes between existing users and future growth. x Develop the 2017 Sewer System Master Plan Report. ES.2 INTEGRATED APPROACH TO MASTER PLANNING The City implemented an integrated master planning approach and contracted the services of Akel Engineering Group to prepare the following documents: While each of these reports is published as a standalone document, it has been coordinated for consistency with the City’s General Plan document. Additionally, each document has been cross referenced to reflect relevant analysis results with the other documents. ES.3 STUDY AREA DESCRIPTION The City of Morgan Hill is located in Santa Clara County, approximately 22 miles southeast of the City of San Jose and 24 miles northwest of the city of Hollister. The City’s closest neighbor, the City of Gilroy, is located 8 miles to the southeast. U.S. Route 101 bisects the eastern boundary of the City in the north-south direction. The City limits currently encompass 12.9 square miles, with an approximate population of 42,000 residents. The City is generally bound to the north by Tilton Avenue, to the east by Anderson Lake, to the southeast by Foothill Avenue, to the west by Sunnyside Drive, and to the south by Middle Avenue. The unincorporated community of San Martin is located to the south of the City. The City’s topography is generally flat in the center of the City with increasing slopes on the east and west. Figure ES.1 displays the planning area showing city limits, the Urban Growth Boundary of the City and the City’s Sphere of Influence Boundary. x Water System Master Plan x Sewer System Master Plan x Storm Drainage System Master Plan

August 2017

ES-2

City of Morgan Hill Sewer System Master Plan