Peter V. Sevcik, P.E. Director of Engineering and ...ncsd.ca.gov/wp-content/uploads/2014/03/170524-Southland-WWTF... · Peter V. Sevcik, P.E. Director of Engineering and Operations

Peter V. Sevcik, P.E.Director of Engineering and Operations

Nipomo Community Services DistrictMay 23, 2017

Presentation Content

Southland WWTF Process

Plant process water system

Use of recycled process water for construction

Preliminary Cost

Questions

Southland WWTF Process

Influent

Screens Grit Removal Aeration Basin

Clarifiers

Effluent

Infiltration Basins

Southland WWTF Plant Process Water System

Provides recycled water for onsite use for hose bibs for washing operations, spray water for screens, fluidizing water for grit removal and sludge dewatering as well as plant landscaping

Use of Recycled Southland WWTF Process Water For Construction

Use for construction purposes needs to be permitted by Regional Water Quality Control Board

Water would be stored in a construction water tower

Would need to be tested for qualification as disinfected secondary-23 recycled water

Users would need to be registered and trained by District staff to ensure safe use

Use would be restricted to NCSD service area

Preliminary Recycled Southland WWTF Process Water Cost

Permitting $10,000

Construction Water Tower $50,000

Piping and site improvements $50,000

Contingency $20,000

Total Preliminary Capital Cost $130,000

Questions