Stantec Consulting Services Inc - Laserfiche WebLink

Stantec August 6,2019 Page 4 of 14 Subtask 200.006 Air Quality Regulations Stantec will summarize applicable air quality regulations, including any pending rules relevant to the WPCF processes, or possible future process alternatives, describing their potential impact on needed improvements or future operations. Stantec will prepare a TM summarizing the results of this regulatory analysis and will conduct a 3-hour workshop to review these findings with City staff.Stantec will prepare a meeting agenda and minutes and provide those to the City. Comments on the Technical Memorandum will be incorporated in the Draft Facilities Plan. Deliverables: • Meeting with Ecology and City staff • Draft Regulatory Assessment TM • Workshop with City staff to review draft TM • Meeting agenda and minutes Task 300 Condition Assessment A key input to the Facilities Plan development is the condition of the existing WPCF.This data drives both long-term infrastructure improvement alternatives development and the 5-year CIP needed for budgeting in the spring of 2020. We are aware of a number of facility needs which City staff have identified, as well as concerns for existing facilities which require further investigation due to physical condition or vulnerability to seismic or flooding events. For example,the City knows attention must be given to the existing headworks building as this structure and others associated with the South Plant site are built on fill without the support of piles,and settlement is evident. This task includes an evaluation of the existing WPCF infrastructure and assets, including physical condition,age,ability to function as designed under future climate conditions(sea level rise and flooding),as well as resiliency of the facilities under critical conditions such as a major seismic event. This evaluation will assess the ability of the WPCF, under extreme conditions,such as a major seismic or flood event,to remain functional and provide compliant treatment and disposal service to existing users,as well as under flow and loading conditions that may exist under foreseeable growth scenarios for the service area. For this evaluation,the flows and loads developed in Task 100 will be used, therefore it is critical those assumptions and projections be finalized prior to evaluation of WPCF functionality under future conditions. Stantec will deploy a condition assessment strike team to provide the assessment as an early-action deliverable.The findings of the condition assessment will be used to support both plant-wide improvement alternatives and near-term (<5-year) budget recommendations.The Subtasks which represent the activities to be undertaken in this condition assessment are described in greater detail below. Subtask 300.001 Physical Condition—WPCF Components Stantec will conduct an evaluation of the existing WPCF process components and structures. Our team members will review design information provided by the City(construction documents/as-builts, materials of construction,design criteria,geotechnical investigations/reports), meet with WPCF staff,