AWWA IMTECH54026

The City of San Diego, California Water Department (CSDWD) currently operates and maintainsone of the most complex municipal water supply systems in the nation, serving more than1.2 million people and covering approximately 280 square miles of developed land. TheCSDWD also delivers and sells water outside its own incorporated boundaries. Because water production from local sources is notsufficient to meet consumer demands, the CSDWD relies upon imported raw and treatedwater from the San Diego County Water Authority (CWA), which typically constitute 75to 90 percent of total water deliveries.CSDWD made the decision to move from the use of a skeletonized water model to a fulldetailed water model. This decision was made tosupport the CSDWD's $773 million Capital Improvements Program. The full detailwater model contains over 3,000 miles of water mains, 44 pump stations, 27 reservoirs,222 in-system regulating stations, 3 water treatment plants, and over 105 hydraulic zonesserving 256,000 connections. In addition to building and calibrating this model, CSDWDhas also created a model with detailed demand forecasts and planned systemimprovements to the year 2030.The detailed hydraulic water model is being used daily to support long-range planningand short term operational needs. This paper is presented from a systemsplanning perspective and describes how CSDWD developed and now utilizes thedetailed hydraulic model in its daily operation and decision making to support a $773million Capital Improvements Program.The CSDWD's overall vision is to have an integrated system that links water modeling,the Geographic Information System (GIS), Customer Information System (CIS), andSupervisory Control and Data Acquisition (SCADA) so that system planning andoperations can receive the maximum benefit from all of these computer informationsystems. Includes reference, figures.

Product Details

Edition:

Vol. - No.

Published:

06/01/2001

Number of Pages:

15

File Size:

1 file , 460 KB