The Metropolitan Water District of Southern California approved the design and installation for the first phase of upgrades to the monitoring system at Diamond Valley Lake.The MWD board vote July 12 appropriated $950,000 for the project.  MWD plans to upgrade the monitoring system in three stages. Stage 1 includes procurement and installation of 16 weir level sensors and 15 strong motion accelerographs and the preparation of procurement documents for 19 robotic total stations and for the automated data acquisition system. Diamond Valley Lake was completed in 2000 and has a maximum storage capacity of 810,000 acre-feet (260 billion gallons).