2013 Water System Plan, Volume II - Seattle City Clerk's Office - City ...
2013 Water System Plan, Volume II - Seattle City Clerk's Office - City ...
2013 Water System Plan, Volume II - Seattle City Clerk's Office - City ...
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Table 8<br />
Decommissioned Standpipes and Elevated Tanks d<br />
Year Year Capacit Base Overflow Diameter Tank Tank Material Date of Interior Coating Exterior Coating Improvements Needed If Current Uses<br />
Taken Const. y (MG) Elev. Elev. (feet) Height on Last Type a Date Type Date Returned to Service<br />
Off-<br />
(feet) e (feet) f<br />
Riser (feet) Inspection Applied Applie<br />
Line<br />
d<br />
Regional and Sub-Regional <strong>System</strong><br />
Standpipe<br />
Foy <strong>2013</strong> b 1933 1.0 495 590 46 - Riveted Steel Feb 98 Vinyl 1980 Lead base 1980 Internal recoating, including coal Communications<br />
tar removal, and installation of a tower<br />
mixing system.<br />
Elevated Tanks<br />
Myrtle #1 <strong>2013</strong> c 1919 0.5 506.5 584.5 46 - Riveted Steel Feb 96 Vinyl 1982 Lead base 1983 Internal recoating.<br />
Touch-up 2009<br />
Richmond Highlands #1 <strong>2013</strong> b 1954 1.0 492.5 590 86 25 Welded Steel Nov-99 CTE 1954 Lead base g 1981<br />
Distribution <strong>System</strong><br />
Standpipes<br />
Barton 2012 b 1927 1.4 277 326 80 - Riveted Steel Jan 98 CTE 1960 Lead base 1981 Internal recoating, roof repairs,<br />
drain improvements (air gap), and<br />
reconnection.<br />
Woodland Park 2003 h 1925 1.0 356 430 50 - Riveted Steel Oct 98 Vinyl 1984 Lead base 1980 Reconnection<br />
Elevated Tanks<br />
Maple Leaf 2009 1949 1.0 431 530 84.25 25 Welded and Riveted Jan 98 epoxy 1988/95 Lead base i<br />
Touch-up 2011<br />
Source: Capron 2011, Mantchev 2012<br />
a CTE = Coal Tar Enamel<br />
b Per current schedule.<br />
c WDOH approval pending.<br />
d Decommissioned facilities have been disconnected from the water system, but not demolished, and can be returned to service after the improvements shown are made.<br />
e Top of concrete base, based on North American Vertical Datum (NAVD 88).<br />
f Nominal elevation based on North American Vertical Datum (NAVD 88).<br />
g Richmond Highlands: 1993 seismic upgrade added all new steel to legs and riser, and coated legs and riser with a non-lead alkyd enamel paint system. The bowls still have the lead based primer as noted.<br />
h Disconnected and decommissioned in 2009.<br />
i Maple Leaf has some remaining red lead primer then coated with moisture cured urethane primer and top coats.<br />
Internal recoating and<br />
reconnection.<br />
Communications<br />
tower<br />
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