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The Engineering and Planning subcommittee meets the first Thursday of each month.

The Engineering & Planning Subcommittee makes recommendations to WTD on scope of comprehensive system planning efforts such as the Regional Wastewater Services Plan, WTD policies, and future amendments thereto. The subcommittee also reviews implementation plans such as operational master plan updates, asset management plans and conveyance system improvement updates.

MWPAAC is continuing to meet virtually via Microsoft Teams. Meeting information (MS Teams link/call-in phone number) will be posted a day in advance of the meetings on the committee pages. Please contact Marla Erickson at 206-477-4601 or for additional information.

Subcommittee meetings:

First Thursdays
8:30 a.m.–noon

See 2022 Meeting Calendar for location and dates.

Meeting materials

Below is a listing of meeting agendas, presentations, meeting summaries, and speakers' information from the MWPAAC meetings. All meeting materials are available in Adobe Portable Document Format (PDF) .

List of commonly used acronyms in the King County Wastewater Treatment Division

If a PDF file seems to be not working, try downloading it to your computer ("right-click" your mouse over the link and select either "save target as..." or "save link as") and opening it up locally. If you're still having trouble, you might try shutting off your computer and restarting -- often that cures the problem. And if you're still having troubles, e-mail the KC WTD web coordinator.

Engineering and Planning subcommittee chair

Steve HitchSteve Hitch
Engineering Supervisor, City of Redmond

Engineering and Planning subcommittee vice chair

Meeting Documents
January 7, 2021 Agenda, SummaryWTD Reports and Provisos 2021, Excerpt from King County Biennial Budget Ordinance 19210 – 2021/2022 Biennial BudgetEvaluation of Emerging Wastewater Treatment Technologies
February 4, 2021 Agenda, SummaryAsset Management – ConveyanceLegislation: WAWARN Agreement
March 4, 2021 Agenda, SummaryI/I Control Program – MWPAAC I/I Taskforce Recommendation on Regional Best Management PracticesEvaluation of I/I Reduction Concepts Phase 2Nutrients Draft Permit Update and Public Outreach Handout
April 1, 2021 Agenda, SummaryAsset Management – Condition Monitoring Program, Inflow and Infiltration Control Program – E&P Subcommittee Recommendation on Regional Best Management PracticesQuestions for Inflow/Infiltration Best Management Practices Presentation
May 6, 2021 No meeting
June 3, 2021 Agenda, Summary2020 Decennial Flow Monitoring Interim UpdateReclaimed Water Update
July 1, 2021 No meeting
August 5, 2021 Agenda, SummaryWastewater Effluent Discharge Assessment - Impact to Marine OrganismsRegional Inspector Training and Certification Program Development - Infiltration and Inflow Control Program
September 2, 2021 Agenda, SummaryRegional Infiltration and Inflow (I/I) Program Inspector Training and Certification Program Concept Development Discussion
October 7, 2021 Agenda, Summary (no summary to post), Capital Projects – Georgetown Wet Weather Treatment StationRegional Infiltration and Inflow (I/I) Program Inspector Training and Certification Program
November 4, 2021 Agenda, Summary, Regional Infiltration and Inflow (I/I) Program Inspector Training and Certification Program Presentation
December 2, 2021 Agenda, Summary, Clean Water Plan Updates, Capital Projects – North Mercer Island and Enatai Interceptors Upgrade ProjectRegional Infiltration and Inflow (I/I) Program Inspector Training and Certification Program – Potential Recommendation Discussion
Meeting Documents
January 5, 2017 Agenda, Summary, Conveyance System Improvement (CSI) Program Update Project Prioritization, 2017 Subcommittee Work Plan Topics, Resiliency and Recovery Program Schedule and Scope of Work
February 2, 2017  Agenda, Summary, Brewery Best Management Practices, Conveyance System Improvement (CSI) Program and Infiltration and Inflow (I/I) UpdateCSI handout
March 2, 2017  No meeting
April 6, 2017  Agenda, Summary, Status Report on Meetings with Component Agencies Regarding Evaluation of I/I Reduction Concepts, 2017 Evaluation of Inflow and Infiltration Consultant Team, MWPAAC Engagement Plan, Alderwood Flow Monitoring Presentation
May 4, 2017 Agenda, Summary, Strategic Planning Process for Biosolids, Energy, Reclaimed Water, Technology Assessment
June 1, 2017 Agenda, Summary, Technical Discussion on Lake Hills and Northwest Lake Sammamish Sewer Project and Recycled Water Component, Biosolids Process (in preparation of July field trip), Water Quality Assessment
August 3, 2017 Agenda, Summary, Update on Specific Capital Projects Under Way, Strategic Plans & Goals for: Biosolids / Reclaimed Water/ Energy/ Technology Assessment, Inflow/Infiltration Project Scope of Work update and Scope Revisions Recommendations, Climate Precipitation Study
September 7, 2017 Agenda, Summary, Infiltration/Inflow (I/I) Program Update - Results from Agency Interviews, I/I Tech Memos: Task 410, King County Standards, Task 420, Local Agency Standards, Task 510, Evaluation of Current Inspection Programs
October 5, 2017 Agenda, Summary, Strategic Energy Plan Status, Update on General Sewer Plan for Fall City, New Discharge Regulations for Dental Offices, Resiliency and Recovery Program Update
November 2, 2017  Agenda, Summary, 2019-2021 Decennial Flow Monitoring Project, Infiltration/Inflow Program Update, I/I Tech Memos: Task 430 - Approach to Achieve Common Sewer and Side Sewer/Lateral Standards, Task 520 - Outline for a Standardized Regional Inspection Training Program;
 December 7, 2017  Agenda, SummaryUpdate on Evaluation of I/I Reduction Concepts
Meeting Documents
January 7, 2016 Agenda, Summary, History of Infiltration and Inflow, Briefing on Joint Project Agreement for Ship Canal Water Quality Project, City of Seattle and King County Ship Canal Water Quality Project Joint Project Agreement (Oct 2015)
February 4, 2016 Agenda, Summary, WTD's Long-Term Flow Monitoring Program, Inflow & Infiltration Task Force Options, Update on Industrial Waste Rates and Code Changes, Technical Working Group update on Cost-Estimating
March 3, 2016 Agenda, Summary, Infiltration and Inflow presentation, Resiliency and Recovery Project
April 7, 2016 Agenda, Summary, Update on Water Quality Assessment and Long-term CSO Control Plan, Draft Contaminants of Emerging Concern - link updated to Final document, Inflow and Infiltration Scope of Work discussion, Presentation and handouts from WEF Private Property Inflow and Infiltration Webcast, WTD Participation in Cascadia Rising, Earthquake Awareness Resources
May 5, 2016 Agenda, Summary, Conveyance System Improvement Program Update Briefing, Briefing on CSO Joint Operations System Optimization Plan, Joint Operations and System Optimization Plan (Feb 2016), WTD Capital Improvement Program Overview
June 2, 2016 Agenda, Summary, I/I Scope of Work Discussion, Report on Onsite Septic System Work Group
July 2016 No meeting held
August 4, 2016 Agenda, Summary, CSO Long Term Control Plan Update, CSI Program Update and I/I Program, WTD Capital Project Cost Estimating & Project Control Process Improvement EffortConceptual Projects to Meet Identified Capacity Needs
September 1, 2016 Agenda, Summary, CSI Program Update Conceptual Projects, Performance Metrics Update
October 6, 2016 Agenda, Summary, CIP presentation, CSI Program Update
November 3, 2016 Agenda, Summary, CSO Treatment Facilities Overview, Industrial User Survey Update, Conveyance System Improvement Program Update
December 1, 2016 Agenda, Summary, 2017 work plan discussion, Scope of work - RFP P00208P16, Professional Services for Evaluation of Inflow and Infiltration Reduction Concepts
Meeting Documents
Dec 3, 2015  Agenda, Summary, Sign-In Sheet, Planning Level Cost Estimate  , Water Quality Assessment
Nov 5, 2015  Agenda, Summary, Sign-In Sheet, CSO Expert Review Panel on GWWTSIndustrial Waste Survey Update  
Oct 1, 2015  Agenda, Summary, Sign-In Sheet, Industrial Waste Survey  
Sep 3, 2015  Agenda, Summary, Sign-In Sheet 
Aug 6, 2015  Agenda, Summary, Sign-In Sheet, Reclaimed Water Rule Proposal
Jul 2015  No Meeting Held
Jun 4, 2015  Agenda, Summary, Sign-In Sheet
May 7, 2015 AgendaSummary, Sign-In Sheet
Apr 2, 2015 AgendaSummary, Sign-In Sheet,  CSI Program UpdateLong Term Control Plan
Mar 5, 2015 AgendaSummary, Sign-In Sheet,  Cost Estimating Technical Working GroupCSO Expert Review Panel
Feb 5, 2015 AgendaSummarySign-In SheetReducing Toxic PollutionEnsuring Safe Clean Water for Healthy People and a Strong Economy
Jan 8, 2015 AgendaSummarySign-In SheetOverview of West Point Treatment Plant Permit Renewal
Meeting Documents
Dec 4, 2014  Agenda, Summary, Sign-In Sheet, CSI Program Update: Status Report
Nov 6, 2014  Agenda, Summary, Sign-In Sheet
Oct 2, 2014  Agenda, Summary, Sign-In Sheet
Aug 7, 2014  Agenda, Summary, Sign-In Sheet, PSRC Population and Employment Forecast Summary
Jun 5, 2014  Agenda, Summary, Sign-In Sheet, WQA and Monitoring Study Presentation to RWQC
May 1, 2014  Agenda, Summary, Sign-In Sheet
Apr 3, 2014  Agenda, Summary, Sign-In Sheet 
Mar 17, 2014  Agenda, SummarySign-In SheetRWSP Policies Presentation  
Feb 6, 2014  Agenda, Summary, Sign-In Sheet,  
Jan 9, 2014  Agenda, Summary, Sign-In SheetSkyway I/I Presentation