YOUR SEWER DOLLARS AT WORK
List of Capital Improvement Project over the past decade.
A. (2008) $3.0 million - Evergreen Heights – Pipe rehab project in White Center. Includes
Greenbridge housing and surrounding area.
B. (2007 – 2011) $4.6 million - Chelsea Park Project – Replaced over 64,000 feet of old sewer
lines and a few hundred stubs in the heart of Burien. Improved treatment plant capacity, hydraulic
loading on the sewer collection system and longevity of the sewer pipe.
C. (2007 – 2008) $1.0 million – Pump Station #12 completely rebuilt. Accepts flow from Three
Tree Point and pumps to Miller Creek Plant.
D. (2007 - 2008) $1.5 million - Pump Station #17 elimination (includes new gravity sewer lines to,
and along Des Moines Memorial Drive.) Engineered way to gravity sewage rather than pumping.
Pump Station needed to be rebuilt and enlarged. Long term money savings.
E. (2008) $1.8 million – ULID 79-P2 in Normandy Park. Approximately 100 new connections.
Septic systems were failing.
F. (2008) $350,000 - SCP odor control improvements. Treatment plant received 6 – 10 odor
complaints per year. Zero odor complaints since completion of the project.
G. (2010 – 2012) $2.5 million - Seahurst Beach Project –Installation of new pump station,
replacement of nearly 5,000 feet of beach sewer line, piping improvements of an existing pump
station. Working with the City of Burien, Army Corps of Engineers, and Department of Ecology
& Department of Fisheries on an environmental shoreline improvement project.
H. (2009) $300,000 - SCP Centrifuge. Improved dewatering from 16% to 22% solids. Handles
more gpm. Hauling fewer solids to Eastern Washington due to higher concentration of solids.
Added dewatering redundancy.
I. (2009) $300,000 - MCP Clarifier improvements. Replaced all flights, chains, sprockets and drive
motors for two primary clarifiers.
J. (2009 – 2010) $1.3 million – Pump Station #2 upgrade. Completely new pump station. New wet
well, pumps, controls building. Needed slightly bigger station due to Evergreen heights and
K. (2010) $300,000 – 3rd Ave. South - District Extension. Several failing septic systems. Health
Department had tagged a few of the houses. Approximately 20 homes.
L. (2010 – 2011) $400,000 – MCP/SCP Disinfection upgrades. Replaced 20 year old Sodium
Hypochlorite (NaOCl) generators with modern, efficient and dependable generators. Staff
installed equipment saving tens of thousands of dollars.
M. (2011) $150,000 - SCP headwork’s improvement. Made improvements to headwork’s screens
and by-pass channel to better handle peak high flows caused by heavy rain events.
N. (2013) $550,000 - 152nd Alleyway Rehabilitation Project.
O. (2013) $400,000 - Updated District Comprehensive Sewer Plan, which includes the first District basin study & system hydraulic model.
P. (2013-2014) $3.3 million – MCP/SCP plant improvement primary clarifier, chlorine contact
chamber and safety improvements.
Q. (2015-2016) $1.2 million - MCP digester repairs and improvements and a new dewatering
R. (2016) $175,000 – Pump Station #7 improvements. (Slip-lined Station forcemain.)
S. (2017) $2.6 million – Rehabilitation of Pump Stations #14 & #15.
T. (2016-2018) ~$15 million – Purchase of land, design and construction of new Administration and Maintenance Facility.
U. (2018-2019) ~ $900,000 – Beverly Park District Extension.
V. (2019-2020) $15.0 million – Salmon Creek Solids Handling Project. (Current Project)
Sewer Line Installation and Rehabilitation $11,150,000.00
Pump Station Installation and Rehabilitation $ 9,075,000.00
Treatment Plant Improvements $21,000,000.00
Administrative & Buildings Improvements $15,400,000.00
Total = $56,625,000.00