February 11, 2019 Page 2
| Addendum #3Addendum#3.doex 3066.09
» The electrically actuated ball valve shall be normally closed. The valve should only
open when the primary leachate pump is disabled and the secondary leachate pump
is activated.
=» The primary and secondary sump pumps shall be set to start when the liquid in the
respective sump is at a level less than or equal to the respective liner elevation at
the upper edge of the sump.
=» The leachate sump pumps shall shut off when the liquid level is between 3 and 6
inches above the intake of the pump or prior to air infiltration into the pump.
=» A visual alarm shall activate if the liquid level in the primary or secondary sump is
such that a foot or more of head exists on the liner adjacent to the sump (refer to
detail 3 on sheet 16 for location of visual alarm indicators).
= Leachate indications and totalization data shall be made available for programmable
logic controller as indicated in Section 16500 of the project specifications.
Detailed logic control design will be handled during submittal process.
EAG/ESS: eag
Enclosure: Revised Specification (Section 15210)
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SANBORN i HEAD
