Water Treatment Plant Design, Fourth Edition

George P.Fulton
Hazen and Sawyer, PC
New York, New York
The master plan is the first of many steps leading to a final water treatment plant design. In a strict sense, a public water system master plan is a very comprehensive document that includes many aspects of the ownership and operating features of that system. The principal intent of this chapter, however, is to address those issues of a master plan that affect water treatment plant design. Just as the master plan must recognize growth changes in a community as they may affect water supply demand and plant capacity, the plan must also observe trends in regulatory requirements that will influence treatment process selection. This chapter introduces the principal issues that provide the basis for design through its many phases with particular emphasis on treatment process selection that will not only permit compliance with current water quality goals, but also accommodate revisions and addition for future objectives.
A master plan is the orderly planning of a water system s future improvement program. The initial step in preparing any water system design is to update the system s master plan. Many states and state utility commissions require all water systems to have an active master plan that anticipates system additions and improvements for many years into the future. The master plan for treatment should be periodically updated to reflect the improvements needed to compensate for changing system requirements imposed by facility wear, customer requirements, and changing water quality regulations.