City of Morgan Hill Sewer System Master Plan 2017

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August 2017 1-3 City of Morgan Hill
Sewer System Master Plan
intended to serve as a tool for planning and phasing the construction of future sewer system
infrastructure for the projected buildout of the City of Morgan Hill.
The area and horizon for the master plan is stipulated in the City’s General Plan. Should planning
conditions change, and depending on their magnitude, adjustments to the master plan
recommendations might be necessary.
This master plan included the following tasks:
x Summarize the City’s existing sanitary sewer system facilities.
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 a 2017 Sewer System Master Plan Report.
1.3 INTEGRATED APPROACH TO MASTER PLANNING
This City implemented an integrated master planning approach and contracted the services of
Akel Engineering Group to prepare the following documents:
x Water System Master Plan
x Sewer System Master Plan
x Storm Drainage System Master Plan
x Morgan Hill-Gilroy Joint Trunk Study
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.
1.4 RELEVANT REPORTS
The City has completed several special studies intended to evaluate localized growth. These
reports were referenced and used during this capacity analysis. The following lists relevant reports