TABLE OF CONTENTS R.Gary Fuller
HDR Engineering, Inc.
Denver, Colorado
This chapter provides general guidelines for managing the design and construction phases of a water treatment project. These projects involve addition of either entirely new facilities or the upgrade/expansion of existing facilities. The principal design and construction phases for both types of projects can typically be separated into preliminary design, final design, construction assistance, and facilities start-up. Traditionally, these phases of design and construction have been conducted sequentially, with a single entity conducting all phases. Growing interest in design-build projects has placed an emphasis on initiating construction prior to final design, accelerating the project schedule by combining the design and construction teams into one entity. Regardless of which approach is used, many of the design and construction issues remain the same.
Completion of the master planning and process selection phases establish the design concepts for the water treatment improvement project, forming the basis for preliminary design. The preliminary design phase must address a variety of design issues, concluding with concise recommendations for the principal components of the water treatment plant facilities. During preliminary design, the primary treatment processes and waste handling systems design parameters will be established to allow the design team to initiate development of the design concepts for all the other disciplines. Close coordination with the design team members, owner, and regulatory agencies is essential during this phase of the project.
Regulatory agencies having approval authority over construction of a water treatment plant project may include...
