DCS Solutions: Don Jackson Chen Kiat Yong Sarah Doyle

1. DCS Solutions:Don JacksonChen Kiat Yong Sarah Doyle Constructed Wetland Design at Sipaulovi Village

2. DCS SolutionsWho are we? • Don Jackson – Team Leader • Main client contact • Design & research • Chen Kiat Yong • Main design research • Permitting & regulations • Sarah Doyle • Main drafter • Design & research • Deliverable editing

3. Objective • To design a centralized wastewater treatment system to meet current and future demand for the Village of Sipaulovi.

4. External Consultants • George Mase • Main Tribal Contact • Community Services Administrator • John Mead • Wastewater Technical Specialist • Institute for Tribal Environmental Professionals • Suzanne Jamison • Liaison for DCS and Hopi Tribe • Paul Gremillion, P.E. • N.A.U Professor, Civil & Environmental Department • Christine Laguna, P.E. • Grading & Drainage Specialist • CAD advisor • Jason Nieto • Certified Plant Operator • Sipaulovi Lagoons • Erika Schoen, E.I.T. • Environmental Engineer • Indian Health Service • Carl Seweyestewa • Land Information Systems Surveyor, Hopi Tribal Government • Mike Stover, P.E. • Technical Advisor • I.H.S. Environmental Engineering Consultant

5. Introduction • Problems with current system • Future growth – population may double • Projected calculations in Microsoft Excel • Odors from existing facility • No central sewer system

6. Proposed site Sipaulovi Village

8. Aerial photo

11. What does the client want? • Centralized WWTS for current and future users • Prefers Constructed Wetland Design • Wants to reuse effluent for non-edible crops (gourds, livestock fodder, etc…) • Trees • Would like to attract birds and other wildlife

12. Design phases: • 30% design proposal (completed) • Includes research of design alternatives • 60% design proposal (pending) • Will be completed by April 6 • After 60% design proposal is completed, client representative (George Mase) will be consulted to select final design • 90% design proposal (to be completed) • Includes engineer’s construction cost estimates • 100% design proposal • To be completed by April 20th • Capstone presentation April 27th

13. Design Elements: • Transport (not in scope of project) • Flow equalization/settling tank • Bar screen • Flow meter (requires electricity) • Pump (requires electricity) • Pressure sewer & Gravity sewer • Primary Treatment System • Oswald system OR lagoon • Lined or unlined • Secondary Treatment System • Constructed wetland (Oswald only) • Non-discharging OR effluent reuse

14. Questions?Comments?Suggestions?