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Cost Estimating Manual – Combined Sewer Overflow Storage and Treatment (EPA/600/2-76/286) December 1976

Data for estimating average construction costs and operation and maintenancerequirements are presented for combined sewer overflow treatment plants ranging from about 5 to 200 million gallons per day in capacity, and storage facilities ranging in size from I to 240 million gallons. Estimating data are included for 14 separate process functions associated with combined sewer overflow treatment plants and storage facilities. An example of the use of the data is given.

Estimated average construction costs and operation and maintenance requirements are related graphically to appropriate single parameters for respective plant components. In addition, cost components of the process functions are presented to enable inflating costrelated materials and wages.

The data presented provides means of estimating costs and operating and maintenance requirements for a variety of facilities on an average basis, but do not supplant the need for detailed study of local conditions or recognition of changing design requirements in preparing estimates for specific applications.

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