Post on 07-Jul-2018
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Slide-$
Final larifier !ehabilitation – onstruction Photos
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Slide6%
Final larifier !ehabilitation – onstruction Photos
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Slide6"
Final larifier !ehabilitation – onstruction Photos
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Slide6B
Final larifier !ehabilitation – onstruction Photos
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Slide63
Field 8erification "tudy ' 5oals
Guly %% , )P8 Service !nc. ?Gohn 8lser, P.8.@ hired to Studyperformance of new ow
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Slide6+
Field 8erification "tudy – onclusions
ow
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Slide6-
Phased Approach for Final larifier !ehabilitation
Based on documented performance of the new ow
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Slide66
Phased Approach for Final larifier !ehabilitation!nstallation contract developed by and bid annually by the BS:aintenance and 8ngineering 0epartments.
)ontract installation re5uirements developed by :aintenance
0epartment without use of outside consultants. ll contract e5uipment, supplies and labor inspected directlyby :aintenance 0epartment.
(ehabilitation of tan/s based on severity of e9isting tan/conditions ?i.e. Worst an/s ;irst@.
!nstallation contract revised annually, prior to bidding, toaddress problems encountered in previous years contract ?i.e.)hange Frders, )ontract )larifications, 8tc@
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Slide67
Phased Approach for Final larifier !ehabilitation
;ootnotes4". 85uipment price held for years at A#3,667 per ;).. Price increase to A$7,%%% per ;) due to escalating Steel Price.
3. !nstallation )ompleted without )hange Frders.+. ;irst pro ect to include Weir Wall (ehabilitation
Startear
;inal)larifiers
Purchase)ost
!nstallation)ost
otal Pro ect)ost
Per *nit)ost
%% 7B, #B A"$-,%%% A7+,+63 A 6$,+63 A"3+,73"
%%3 3 ,+ ,+B,6B " A33+,6## A"+ ,3 % A+77,%%# A""$, -
%%+ ,7 ,# ,"B " A33+,6## 3 A"-", %% A+#-,### A" ",+7
%%- " ,- , B,-B A3#7,#3+ 3 A"-",#%% A-3$,63+ A"3+,$%$
%%6 6 ,"B A"$+,%%% + A 6",7$% A+--,7$% A 7,#$-
)ost to 0ate A",++6, "% A7#",-7 A , 7,7# A"3$, 36
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Slide6#
Phased Approach for Final larifier !ehabilitation
!nstallation )ontract revision include the following activities4
:aterial 0isposal
8lectrical )onnections
;loor leveling and concrete brea/outs
Scum trough piping.
Weir Plate d ustment
Weir Plate Pipe Support (eplacement
Sandblasting and Painting of all :etal Surfaces in ;inal 8ffluent an/.
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Slide6$
Phased Approach for Final larifier
!ehabilitation – Photos
*pper Weir Wall Supports
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Slide7%
Phased Approach for Final larifier
!ehabilitation – Photos
Lower Weir Wall Supports ?under s/irt@
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Slide7"
Phased Approach for Final larifier
!ehabilitation – Photos
(ehabilitated *pper Weir Wall Supports
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Slide7B
Phased Approach for Final larifier
!ehabilitation – Photos
(ehabilitated Weir Wall
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Phased Approach for Final larifier
!ehabilitation – Photos
(ehabilitated Lower Weir Wall Supports ?under s/irt@
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Slide7+
Phased Approach for Final larifier
!ehabilitation'e9t Phase 2 Weir and an/ (ehabilitation. ctivities that may beincluded are the following4
Weir Plate d ustment
Weir Plate Pipe Supports 2 both above and bellow Weir S/irt
Sandblasting and painting of all metal surfaces.
;inal )larifier ;loor )oating ?re
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“Providing a high level of sanitary benefits to the communities we serve.”
7ames "6rabac9 – #aintenance /epartment!oberta 5aie6 P.,.: 7ane r6 – Process /epartment"al 2o&empio ;!et.
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ngel (iveraSuperintendent of :echanical :aintenance
Buffalo Sewer uthority$% West ;erry St.Buffalo, ' "+ "3