CR 92-23 Meadowbrook Lift Station
January 14, 1992
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council Report: 92-23
MEADOWBROOK LIFT STATION - CHANGE ORDER NO. 1
proposed Action.
staff recommends adoption of the following motion: Move
that Council authorize Chanqe Order No. 1 as it concerns the
Meadowbrook Lift station project.
overview.
Once rebuilding of the Meadowbrook Road sanitary sewer lift
station was u~der way it became quite apparent to the City
that plan changes were needed. In order to protect trees on
the Meadowbrook Golf Course property it was necessary to
relocate the pumping station's control panel to the west
side of Meadowbrook Road.
The City also requested extra restraints to an existing
nearby water main that was exposed once excavation for the
new lift station was begun. The restraints were requested
for reasons of safety and to protect the integrity of the
existing main.
primary Issues to Consider.
o What are the costs?
Change Order No. 1 will cost an additional
$5,Ol8.72.
o What are the specifics of this change order?
See the attached supplements from RCM and
Associates for description of change and
justification.
supporting Information.
o Change Order No. 1
cJ..wJ ~
James Gessele
Engineering superintendent
CHANGE ORDER NO. 1
PROJECT:
Meadowbrook Road Pump Station
Hopkins, Minnesota
Date: December 20. 1991
OWNER:
City of Hopkins
Owner's Project No.:
91-06
TO: (Contractor): Gilbert Mechanical Contractors, Inc.
3012 Clinton Ave. South
Minneapolis, MN 55408
Engineer's Project No.:
10112
Contract Date: August 7, 1991
You are hereby directed to make the following change in the Contract Documents.
Description of Change:
1.
Relocate the control panel to the west side of Meadowbrook Road for
a lump sum amount of $1,900.00.
Install tie rod thrust restraints to the 90-degree bend (tee) in the
existing 6-inch C.I.P. watermain for a lump sum amount of $3,118.72.
2.
Justification of Change:
1.
2.
Requested by the City of Hopkins following start of construction.
Requested by the City of Hopkins following start of construction.
Pricing Data:
The Engineer has reviewed the quoted amounts for these two changes and has
concluded the amounts are reasonable.
Attachments:
1.
2.
October 31, 1991 letter from the Contractor (7 pages).
December 11, 1991 letter from the Contractor (2 pages).
CHANGE IN CONTRACT PRICE
Original Bid Price
Net change from previous Change Orders
Contract Price prior to this Change Order
Net increase (decrease) from this Change Order
Contract Price including this Change Order
$88.700.00
N/A
$88.700.00
5.018.72
$93.718.72
CHANGE IN CONTRACT TIME
Original Final Completion Date
Final Completion Date by previous Change Orders
Final Completion Date from this Change Order
November 15. 1991
N/A
November 15.1991
Engineer's Recommendation,
RIEKE CARROLL MULLER ASSOC., INC.
by ~Ifl;.",,~ date
lz../lD/' L-
I
Con tractor's Acceptance,
AMES CONSTRUCTION, INC.
by IY! g- /If
date /2-/2-3 fer f
I I'
Owner's Order,
CITY OF HOPKINS
by
date
Page I of 1
December 11~ 1991
Mr. James Hammer P.E.
Rieke~ Carroll, Muller Assoc.
PO Box 130
10901 Red Circle Drive
Minnetonka~ MN 55343
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MechaniCal ~
RE: Meadowbrook Road Pump Station
Dear Jim:
oo~@rnDw~fID
DEe 16 1991
RlJ~I!.Cifio!l.M!I!la~ ~:;~::i::li!H Ina.
Box 130 Hopkins, Mlnr. 55343
Please issue a change order for the work requested per your letter dated
November 6~ 1991.
Cost Break
Valley Rich Company
GMC 5% overhead & profit
Bond ($18.06/1,000)
Total Change Order Request
Very Truly Yours~
G;~ :9anfl~actors.
Walter J.~WaIIY) ~fe
Project Manager
WB/ks
Enclosure
$2~917.52 (see attached)
$145.88
$55.32
$3~118.72
Inc.
3012 Ointon Avenue South · Minneapolis, Minnesota 55408 · 823-9156
VALLEY-RICH COMPANY, INC.
Commercial & Industrial
SEWER & WATER
Phone: 937-5331
. FAX: 937-0367
16540 Beverly Drive · Eden Prairie MN 55347
Invoice Date
12/05/91
Invoice No,
10701
Gilbert Mechanical
3012 Clinton Ave. So.
Mpls, MN 55408
Job No.
757
Hopkins Lift Station JOB # 757
Tie back 6" 90 deg. water main
TERMS: PLEASE PAY FROM THIS INVOICE
WORK DATE EQUIP/LAB/MAT QUANTITY PER RATE TOT LAB/WORK
----------- -------------- -------- ----- ------ ------------
11/07/91 Labor. 33. hr. 45.00 $1,485.00
11/07/91 Small Backhoe 11 . hr. 75.00 $825.00
11/22/91 Small Tamper 1 . Day 50.00 $50.00
11/22/91 Tractor 3.5 Hr. 60.00 $210.00
11/22/91 Travel 1 . Time 80.00 $80.00
------------
SUB TOTALS: $2,650.00
TOTAL MAT.
$0.00
Eye Bolts
Retainer
Rod 3/4"
Sand
8.
1 .
1 .
1 .
$24.00
$51 .59
$42.00
$103.50
SUB TOTALS:
$0.00
$221 .09
TOTAL:
OVERHEAD:
PROFIT:
$2,871.09
$22.11
$24.32
GRAND TOTAL:
$2,917.52
-----------
-----------
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GILBERT
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MechonJcoI 8
October 31, 1991
Mr. Dick Kloskin
Rieke, Carroll, Muller Assoc.
PO Box 130
10901 Red Circle Drive
Hinnetonka, MN 55343
RE: Meadowbrook Road Pump Station
Dear Dick:
Per your request, 1 have assembled a cost to move the control panel pad from
its originally shown location, to the new location as shown marked by stakes
as follows;
Electrical
(See attached breakdown)
$1,137 . 00
Pump Supplies
(See attached breakdow~)
Sub
5% Overhead and Profit
Project Manager - 2 hours at $50.00/HR
Total Change Order Request
$578.00
$1,715.00
~85.75
$'100.00
$1,900.00
If you have any questions, please call me. We want to get started on the
electrical immediately, so a quick response is appreciated.
Sincerely,
Gilbert Mechanical Contractors, Inc.
/YV,/.p/-
Walter J. (Wa~) ~onfe
Project Manager
walks
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ST PAUL, MINNtSOTA 55117
GILBERT
MECHAN:ICAL
P.02/07
3012 CLINTON AVE SOUTH
MINNeAPOLIS, MN 55409
.... -
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Number 11113
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MEADOW B~OO~ PUMP STATION
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I HOPKINS, MN
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(612) 483.5066
TO CILBERT MECHANICAL
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Ne hereby lIIgrt;e to make tt)e change (5) sP6cllled below;
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RELOCATE E~IST1NG COh~UITS.
ADD $1136.85
SEE ATTACHEO BREAKDOWN.
NOTE: This Chtnge Order becomes p~rt of .and in eonformanco wl'h the exlst!n\;l contrael
". .- ..---. .....------. ......---.., ---,--..'. --,---' ,
WE AGREE hMeby to make the change (s) specified above at this price c:> $ 1,1361 B~
:H".~O ~~~_9.;~ _~~Z- --tl..' P~'~RVEJ~VU'-$,SECO- ~C~O~NRT~~~A.TCATMTOOUTANLT. -$ $...... .:.~.:.:'~-- ,~--l-=...u.-
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,..,CCEPTED - The above prices Bnd speciflcallons of
thi~ Change Order are 6atisfactory and ara hereby ao.
cepted. All work to be performCld under same terms and
oondltlons as speClrJed In orl"lnal eontraQt unless other.
wise stipulated.
Date Of accept3nee,_...
Signature _e.
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~9T-?>1-91 THU
8:50 GILBERT MECHANICAL
P. ~:13/07
ESTIMATE SHEET
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OE~CRIPTlON
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PAGEt___ J.
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DATE --11>--=..3JJ.. - q I
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.. MATERIA.L l A BO A
QUANTITY UNIT PRice PEA AP.40UNT UN Ii P~R AMOUNT
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)CT-31-91
THU
NClU.I'ROOUC1IVC Lo\OOR
....111,.4 M.41'r..",1
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TOTAL (At
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GILBERT
MECHANICAL
P.04.....07
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L..-.BO(r COST GROSS TOTAL
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MOl.....' c... eel
TOTAL PRIMe COST
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TOTAL NI!T COST
10 ~ p,.n.
S,.lIlnV P,u-. Wjtho\lt ~;tln. Tnll
'7 "to ftidf!l tall (el Mate,lal Only
~"";II'1 P'N-a: With 5..1".. T.u.
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'^', /;,:7"" ;1'01. . ",:;;r' .I.'&" ..~DVf"<'"' ....r1t ... L B E R T ME C H A N 1: C A L
WALDOR PUMP & EQUIPMENT COMPANY
9700 Humboldt Avenue South
Anneapolls. MN 55431
~one: (612) 884"'394
P.05/07
TO' W1:l
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fAX .. . ;2:b- SC/4-
RE' !-Ie ~ - to , t11,..,
PAGES: (Including thIs page)~
MESSAGE (if any):
PACSIMILE TRANSMISSION
Waldor Pax #: (612) 884-3239
..... FROM: ~M~
oJ.,.. 3D, "
DATE:
~Olre.t
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IC you dId Slot receiv all tho P 8 S 1Jl good condit.lon.
pleas advise.t your earliest. (oJlT81l1eJlce. Thank 'foul
~
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SL~' ~
ICT~31-91 THU e:52 G~LBERT
Controlflng pumps with oLS Floats
"'''~l) (loan are used to control a p'um~.
! tijrns it ON. the other turns 1t OFF.
o ,in9'~ float is rareiy used for pump
control due to erratic operation from
$urffCe waves. Pympwdown and Pump-Up
~ys~ems are shown 4t right. NO f1ctts
are used for Pump. down cper~tion. Se~
Bulletin 6100 Sing" ~nd Ouplex Pump
Contro'ler data.
P\II1l...I)....n
O~U"I Nod.
..
'I'tu'1I.l JlUtll'
ON wta\
.k!l!~ ......r
DImensions
c.
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9Y2
J
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~ 7N~~'" 9GC~ 1
\ .,""', \ '~ Pipe Mount
~'.Y;Y2. \ ~ ~~r4i-r
\. .. 0, .:.... ( 'l~' 4
',.,- ~,~
..... 6
....
12 .
SpecifiC?ations
dW1 WeIght Ktt
A two~p,rt, en~e'.fini!hedJ east..1ron ~eight.
~o1t.-AsS~ led to the fl~t c~'e to p'ovide: sUlpande.:l
!\punt lllJ arIl top side leve' bdJuStt1ent.
CSM Ste.inleu Steel Cable MOl)ntil'lg Kit
A he h' y - d IS ty. S t a 'f n 1 U! It e _ 1 cab 1. and
plasti$Ol-coned. cast iran weight OS lbs.) w1th
sta1n1ess steel C:CMect1 ~ 11 r* ,nures drHt-f'ree
muntiflg Ani comentent raroval for f1 oat switeh level
adjlJ$tmant. Sta 1 n1ess futeneJ'. Q'\o.unt the fl04t
Soritches 10 tre $tafnleu stee'l cab".
ConneGtlons
Sf ng'e swi ten f1 oats have ~1te 1m b llIck leads. o~,
switch floats h4ve tt'e seCQrd H sted switch eonn~ed to
the red and green 1eads. '
Switch
Mera.rr';y tf1t type. NO. NC or (Q'!IM nAtions.. Swaches
Ire described in th! NOFWL or ~It13 OO',,~ co"dft1on.
Sw1 tch OJ)eraus ON/OFF on le;s than 1- of , ttve' Cha.~~
ar.d wfthin 1" of h)r'fzonu' ~enttrHn& of clamp.
Switch Rating
'4.5 amp at 115 YDC 1.5 ~p at. 230 vde
2.2 errp It 23C ,,~ 1;20 IP at 115/230 vac
3.0 amp .t 115 v<<: HO \.latt l5'lp at 115 vae
Operating Temperature
, to 1M dl!Qf't:e sF.
Shipping Weight
S11"=l'e ~Hch/20' cable modi!h al'l 9 lbs. s1'l1pp1 ~ .
weight. The 1.00 'rIe19ht Kit is 4 lbs. S!1fppfng W31ght.
lhe Mo~' CeH Kit it 2~ lbs. shtpl'irg weight.
\ ~.. '~nn~()lidated Electric Co',
MECHANJ:CAL
P_06.....e7
Coni"' 'rlU..
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Centro! .rltwn.
Pw-w.r Ie..n-.
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o,+t'l1lltl ~~
Ilo
'"'"' '101711'
OTr ...lth
To Putll' rltlnl I"'..
.r:--- .fll""" I
ItT c..lllnl,
~ ~lt~loIlt
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~H with '
1.IIIl11f 11:".1
Madl' Lall
'la."' __II'M'
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Mod(ll Numbera Speda 1
Switch Arran~ement/ 20 Ft. 40 Ft. Lens th
CQ1ot' Code R1ng Cable Cable ( specify)
l..N.O. (blad) LSA2 LSM lSAX
1-N.C. (red) LS82 LSB4 lSBX
l-N.O./I-N.C. (white) LSJ;2 LSC4 LSCX
2wN.O. (blue) 1.502 LSD4 LSDX
2-N.C. (green I.SE'2 lSE4 lSEX
)
Accessories
.LSIn. We'ght Kft ets4 em'e Rack (JlY)Unt$ 4)
. 9G ell pipe Mount - Powerpack Cont1'Ol P~nl!'S
. CI::<< Clb'f:'/Wefgnt Kit . CMC 1m cae Colitro"ers
~ gG-JCTF Nem.\ . F1be~'ass J1,C\ctfon B~ . Alinll Syst~s
l.lfe Expeotancy
Anticipated f16)(1 ng 1f ft of 25 years of 15 mf nute
tYCl1 119.
Float Cable
iype~. Heavy-<!ut.Y. ffne strarded..lJ.i/G Ilsn Or' *lS/4.
Sfngl~ switch cable 11 3/8. o.d. Dual switdlis 7/16'"
Q.d.
Mounting
The 1.5 is $uppl1ed with a c,~ for IOOUI'\t11'Q on 11"
pipe as shn1.!rd. 11' floats are tD operata at c10nr
tMn 18'1 1,ve' diffeT'fflcs. they can be rotat~ to aYOid
1nterftlrera. D1fferenthls of as little ac 4' cln ttus
be, Itt.
Typical Speolfloatlon
The level dotect.1ng devfcu fn the (nt
."e'1/reservoil'/ta~/e~) Inall be COrlSOHdated (lectrlc
CU1lpafT/ Mode' LS Float ~tches with (lne 5uppH ed for
each cantrol 1 eH1, Th. floats shall be
(p1pe/sulpmdot'l/c.a.bl. kit) mounted as reean\n!Med by
the Illl\Uhctur.r. EACh float shall hnell'Olded
~'l.Yetl)l'ene body. i nt.mal redundant J01YUI"eth.ne foal1\
11otation'lotted switch aM c~'e connection! Ind
'1t'\&-o'tr~rd~ ~G #18 c4b', wi th heavy-duty synthetic
t'4bber jacket in lengthS If. requh.t<! to run uMpHc:e4 to
t1'e control panel. The fl oats. sha" be C9irated 01\
(24/120) volts \\nd uUd with. pump/alanll controller
prOlid'lrg cf1 ffel"tnthl PLITlP operit1on. float fndfc:a.tfng
LIDs and ~G~t switCM~ and alann circuit\")' &1 requ~l'~.
ordering In'structlon; ,
Stata the qL8nt'l~ of e~h Model NtAlQer t~t fs wanted.
^'so Or'der any needed ,pIp! ~lb\t1rQ t1~$. ...eight 0,.
chain kits. junction b~es or eontroHer'$ f Order frCJll
your' ConsoHd5tfd Agent 01" the St. P~!Jt Offfcf .t At.
612/224-9414.
MSOO2M-284 . Cat. File 81.040 @19a4
Sulletln B 100 - LS
1tV..':l\'tUl~fi~n~"1t~JjrnU'1n~~1.UUt9~~:~'U'i~UU'i~n~n~\f~1.w1~~'!.:'~mtt;amm~~~4
Consolidated Electric Co.
141 South Lafayette Freeway Salnt Paul. MN 55107-1420 USA 612/224.9474
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The Model ts Float S"'ftc:h is ~ tfmple,
depel'Idable. leve1-sen.sing auto~tl~ j:ll,lmp or
I' 4 r'l11 contral dl!vi eEl toa t op e r'I tu I"e 1 i ~b ly
il\ sewage wet weils, water rH~rvo1rs
di tche5 or process vats. The f1 oat body is
of h1g/'l-dens1ty polyeth,yhn@ end the clble
jacket is of synthetic robber for ootstandi ng
perforr.l5nce in a wfde-f~nge of corrosive
et\vironnents. Each fioat sel'lSe~ tkc TlIol/ement
of tha liquid level Plst fts mounting
elevation. It tUI"Jt' ON and OFF at
essentially the Ul'Ilf PQint on 4 rfsfng Or
f41l1~ level. Sing', noats are used fOI"
alarm actuHion. Two floats are uisd for
di ffel"enti 11 control of PUr.1pt. F1 oats
contain one or two mercuTj' ootchec each of
which C:ln he normally-open or
norlllllb'..elosed. Model LS floats are
furnishe~ with clamp-~ount1 ng means for
installation on I verticil i'.pipe (by
others). A Model W1 Weight Kit 1s ava1albe
for i nd11/HlJa 1 n oc! t $ US pe 11$1 on. A MOdel CHM
Chain Mounting Kit r,f,.c~ides suspended
instillation eOlwetl1ence for a set of f10&ts
whfl e 4150 havi 1"9 muc" or the st!) f11 ty of A
p1p!-~ounted i~st~"At1o~,
LSA (normally-o 'en) operatIon
Ii
Model LS Features:
· ~e11able service in unbe1fevable places
. F1xed or suspended installation
. He!vy-d~ty. Type SO 118/2 or l18/4 cabl~
. Tough, mD'd~d po'yethyle~e b~dy
. Foam-fi11ed TQr redundant flotation
. Oepend~h'e me~eury~to-electrode tilt switch
. Corr.pletely pottid twitch/cable connections
. Single/dual, NO/NC twitch cQnfi9uration$
. Stocked in 20' and 401 cable lengths
. With Pump contto11Qrs. Alarm Systems. etc.
. Outstanding value IS float or system
. Attractive quantity diScounts
Model LS
Direct Acting
Float Switch
G 12/224-3628
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. _~;';"'~N...-..;Io..;.'.;'t...~~~~';.~i
Suspended
wIth W 1
Weight Kit
Suspended wIth
Stainless Stael
Cable IWelght
Mounting Kit
Pipe-mounted
with standard
clamp
ry.~
:rJ .-U:
'" ~: ''/'
, ~
\, ..
1(. .
I
A duplex pv~p station control set is shown w1th
indeptn~ent ON f10ats fo~ 'ead and lag pumps, a
common OfF float and I high level alarm.
The Model LS Is used in:
. Water Re$~rvo1r$ . Ir~1gat1on Ditches · S1~o~e Sumps
* ProcesS Sumps * Cooling Tower~ . Se'..'age Uft Stations
. Po11ution Contra' Pllnts · E1evated ian~~