Wastewater Comprehensive Plan

2022 Wastewater (Sewer) Comprehensive Plan
On September 26, 2022 the Sammamish Plateau Water & Sewer District Board of Commissioners adopted the 2022 Wastewater Comprehensive Plan for Public Distribution (2022 Plan). The 2022 Plan is comprehensive, providing a long-term strategy and road map for the District’s sewer utility over the 6-year and 20-year planning periods. The Plan analyses methods for provision of effective and efficient sewer service to existing sewer customers and approaches to expand sewer service to properties within the District’s urban sewer service area that do not currently have sewer service available.

The 2022 Plan is available now review and comment, with comments requested by December 30, 2022.

Pursuant to the Washington Public Disclosure Act, written comments constitute a public record, subject to public release.

Comments on the 2022 Plan can be provided to the District by:

US Mail:   Sammamish Plateau Water
                  Attn: Jay Regenstreif
                  1510 228th Ave. SE
                  Sammamish, WA 98075 

Email:       jay.regenstreif@spwater.org

The 2022 Plan is available below for review

2022 Wastewater Comprehensive Plan and General Sewer Plan
Appendices to the 2022 Wastewater Comprehensive Plan and General Sewer Plan

SEPA Checklist and DNS for the 2022 Wastewater Comprehensive Plan
SEPA comments are due by 10/20/2022

Please note: Some of these files are large and may take several minutes to download. We appreciate your patience!

Sewer Basins Maps
The basin plan figures included in Chapter 7 of the 2022 Wastewater Comprehensive Plan show the existing sewer system as well as a conceptual layout of of the future sewer system. The future locations are intended for planning purposes, and the exact locations of future sewers will be based on detailed engineering.

Figure 1-3: Sewer Basin Map
Figure 7-1:  Northeast Plateau Basin
Figure 7-2:  Beaver Dam Basin
Figure 7-3:  Inglewood East Basin
Figure 7-4:  Tiburon Basin
Figure 7-5:  North Lake Sammamish Basin
Figure 7-6:  Central Lake Sammamish Basin
Figure 7-7:  Mallard Bay Basin
Figure 7-8:  Trossachs Basin
Figure 7-9:  Yellow Lake Basin
Figure 7-10: North Sunnyhills Basin
Figure 7-11: Laughing Jacobs Basin
Figure 7-12: Pine Lake Basin
Figure 7-13: Freegard Basin


Link to previous 2013 Wastewater Comprehensive Plan