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2012 Utility Master Plan Update

City of Santa Maria

WSC worked with the City of Santa Maria (City) to prepare the Utility Master Plan Update (Update). Using the City’s updated GIS mapping, WSC is developed an InfoWater® hydraulic model for the water distribution system and an InfoSewer® hydraulic model of the sewer collection system. WSC spatially allocated current and future water demands using a robust analysis of customer record data, zoning based demand factors, City Planning staff input, City Planning documents, and Census data. The spatially allocated demands were used to load the water model for the current, 5-yr, 10-yr and build-out demand scenarios and for model calibration.  For the sewer model, WSC used spatially allocated water demands, sewer duty factors, and sewer flow monitoring data to calibrate and develop current and future sewer loading estimates. WSC used the hydraulic models to perform a capacity-based assessment of the City’s water distribution system and sewer collection system.

The Update included development of a prioritized, risk-based Capital Improvement Plan (CIP) including phasing, timing, and cost estimates that will inform the calculation of the City’s Growth Mitigation Program. The Update included detailed project descriptions and supporting data to summarize the rationale used for identifying, justifying, prioritizing and costing the recommended improvements.

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