Great job, Tom!   David and I will follow up on the 10% COA Action Items.

 

 

Jim

 

 

 

Jim,

 

Per your request in your comments on the 10% design review workshop meeting minutes, below is a list of the action items noted in those meeting minutes.  In addition, we’ve included a few action item requests for the City that have come up since the 10% design review workshop.

 

• Provide Kennedy/Jenks with a year of C:N ratio data for the BCF. (DONE)
• Evaluate 4-auger mixer.
• Develop procurement documents for mobile mixer; K/J to review and provide comments.
• Prepare marketing flyer; K/J to review and provide comments.
• Evaluate status of property south of BCF to see if it could be used for construction staging or if a permanent easement for access road to BCF could be obtained.
• Provide BCF shop drawings/construction notes to K/J.
• Purchase EJCDC documents (as identified by K/J) and provide to K/J. (DONE)
• Provide sample confidentiality agreement to K/J.
• Provide sample SOQ form to K/J.
• Provide modified proposal form to K/J if not included in EJCDC documents.
• Provide specifications for 1997 Phase A (Liquid Phase) construction project.
• Provide information on flow, duration, and water quality characteristics for the WTP filter backwash load to the WWTP.
•   City comments on the Schematic Design Technical Memorandum suggested that the new Lab/Office Building needs to accommodate 12 personnel.  Please confirm this number or provide information on number of personnel to be accommodated within the new Lab/Office Building.
• Provide information on desired lab counter space within the new Lab/Office Building.
• Provide feedback on whether space is needed at the far end of the BCF for turning of trucks used to deliver amendments, or if having the trucks turn in the street and back in is acceptable.
• Provide a decision on designing the aerobic digesters for 10 day SRT with no thickening versus 20 day SRT with thickening.  The City indicated they needed information on the sludge quality and quantity at the 10 day and 20 day SRT.  Kennedy/Jenks will furnish a summary of these results along with their perceived impact on composting operations and a recommendation for the City to review before making a decision.
• Provide confirmation on the target dewatered sludge cake concentration of around 15% versus the current concentration of around 12%.  The City has indicated that the target concentration may depend on the quantity of nitrogen in the dewatered sludge.  Kennedy/Jenks recommends designing for a target concentration of 15% (about the maximum that could be consistently achieved with aerobically digested WAS), unless this will result in significant adverse impacts on composting operations.

 

Tom Giese, P.E.

Kennedy/Jenks Consultants

32001 32nd Ave. S, Suite 100

Federal Way, WA  98001

(253) 874-0555

Direct: (253) 942-3402

Fax:  (253) 952-3435