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execution of the work with all appropriate levels of review to ensure that the project's delivery <br />meets the standards and expectations of the City. <br />All of the City's reservoirs to be studied under this contract have lived long lives and have served <br />the City well for many decades. The City's reservoirs were once state of the art and very commonly <br />used throughout the Southern California region. Each of these design solutions lasted well into <br />the 1990's and early 2000's for small to medium sized tanks, surviving many earthquakes. For <br />example, the 20 MG Alvarado Regulating reservoir design of 1946 and the 35 MG Earl Thomas <br />reservoir design of 1955, both located at the City of San Diego's Alvarado Water Treatment Plant, <br />were "state of the art" for their era, but could not stand the test of time. Given their extreme <br />poor condition, there was no alternative to demolition and replacement. The demolition and <br />replacement of these two large reservoirs were designed by our Project Manager, Richard Brady, <br />P.E., BCEE. We have successfully met this challenge before in an award -winning way. We were <br />able to squeeze 42 MG of new storage in the existing 20 MG footprint by raising the HGL by 1 <br />1. <br />2. <br />3. <br />4. <br />5. <br />6. <br />7. <br />8. <br />9. <br />10. <br />Alvarado WTP, 1950s, 20 MG and 35 MG Reservoirs <br />20 MG Regulating Reservoir, 1992, roof in distress <br />Demolition, sloped walls, gunite removed <br />Subgrade for the two new 21 MG Reservoirs <br />Floor slab underway, shoring in place <br />West Reservoir accelerated construction <br />75%complete, West Reservoir (right side of photo) <br />90%complete, West Reservoir (right side of photo) <br />West Reservoir placed into service (right side of photo) <br />Project completed, APWA 1998 National Project of the Year for the United States (all projects), $25M or less <br />