HomeMy WebLinkAboutContract 41358-CO3.&
FORT O TH ~
Pro ct a e Villag e Cree
s)j
Pro·v 0
Co actor! Archer Western Con ac ors .
C Pro ·~ Mgrj Farida S Goderya. PhD , PE
De pt
to
City of Fort Worth
Change Order Request
al1ty Im provements ; UV Syst
er Wes em 210138
Change Ottle :;
C In
Wa er
61 ,562 .00
sooo
18.974 00
JUSTIFICATION (REASONS) FOR CHANGE ORDER
CITY SECRETARY
coNTRACTNO. Y/~~-Co3
City Sec# 1358
3 Date 3129/20 2
Totals Se lect Day Typ e
$1 ,793,000 .00 80
$61 ,562.00
85
1 854 ,562.00 265
18,974.00 30
$1 ,873 ,536.00 295
000
$18,974 .00
..
' "
fORTWORTH --..,---City of Fort Worth
Change Order Additions
Project Name Village Creek Reclaimed Water Quality Improvements ; UV System
Client Project# CFW 00213 ; APAI 00318-042 ; Archer Western 210138
City Sec# 41358
Project Description
Contractor Archer Western Contractors , Ltd
City Project Mgr. Farida S Goderya , PhD , PE
Change Ord .... e_r #~==3==~--Da_te~==3=/2=9/=20=1=2 ::::!
City Inspector Mike Hill L--Cc.c=..;..;.;;.;.__ ________ __.
ADDITIONS
I IEM DESCRII-' 1 IUN Utl-'I Qty unit Unit (.;OS! 1otal
1 CMR 002-Modifications to Metal Platform Surrounding UV System Water 1.00 LS $8 ,992 .00 $8,992.00
2 CMR 003 -Stop Logs for Flow Control Water 1.00 LS $3,433 .00 $3,433 .00
3 PCM 003 -UV Pump Supply HWL Shutdown Water 1.00 LS $2 ,849 .00 $2 ,849 .00
4 PCM 004 -Sample taps at UV In let and Outlet Water 1.00 LS $2 ,705 .00 $2,705 .00
5 CMR 005 -Isolation Valve on UV Dra in Line Water 1.00 LS $995.00 $995 .00
-
'
. ,. . .
·~-
Water $18 ,974 .00
Sub 1 otal Additions $1 8,974 .00
Change Order Additions Page 1 of 1
•
•
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...,,.--------··------
? <:.. 1t'\ ())
CITY OF FORT WORTH
PROPOSED CONTRACT MODIFICATION (PCM)
Project
Fund:
Village Creek Rec lai m -UV System
Account -------
Project No. P275-70530023183
Center
Contractor _A_rc~.h_c_r_V._'e_s_te_m __________ Contractor's Project No.
Engi neer Alan Plummer Associates, Inc. Engineer's Project Number CFW08085
Construction Parida Godcrya, Ph.D., P.E Construction Manager's 00213
Manager -------------Project N umber Cont. 41358
PCM Description Provide UV High Water Level System Shut Down PCMNo. 003
The Owner proposes to make the following additions, modifications or deletions to the work
described in the Contract Documents. Authorization to proceed with these changes must be
approved by Field Order or Change Order in accordance with the Contract Documents.
T he goal of this PCM is to provide communications which will enable a High Woter Level Sensor in the
lN channel to effect an emergency shut down of the UV submersible pumps . ln PCM2AW, the initial
connection between the UV PLC and PLC R FP was made. No additional conduit or c able is required.
The required elements to implement this functionality are :
• Utilize spare wire and conduit from the remote 1/0 panel to the lN control panel.
• Utilize one spare digital input at the remote 1/0 panel , and monitor the UV high level signal then
perfonn UV pump high level interlock per revised UV System Operations Narrative, Section J .
I have reviewed the construction documents with the Contractor and the proposed T ime and Material
estimates provided by the Contractor. T he estimated costs appear reasonable for the proposed work. The
work has also been coordi nated wi th pl a nt staff as well as our des ign team. No additional contract time is
re quested by lh ~_:-on~ractor Ji r I ~~ am~
Reviewed By: 'ift , ,./ Date : IZ/iz/11
I '
BY:
Pag e 2 of2
--------........ --··----~· .. -
CITY 01'' FORT \VOR'IB
PRO.POSED CONTRACT MODIFlCA TION (PCi\-1)
Pro.is:-c.t Villa!Cl<: Creek R;;clnirn -UV Svs tem Projec : No . .P~75-7 05300 ?3 J SJ
fund; Ai::count Ce1n.:r
Conll'acwr Arc he r Wc s;ern Co r.tr a-c tor ·,; Project No.
Engineer Alan Plummer Associates. lr:ic . Engineer's ProJ«-t Numl.>cr CFWOSO&.:i
Conslt'IH.:tion F nnda Gooerya,. Ph. D., P. E. Const:ructi o!I Mann.gt!r' s 0021.3
Managcr f'rojcc, Num~ C:o;it. 41 358
PCM Dcscrip1io11 Provi de UV Hi~h Wattr Level Sr61em Sh1 it [)Qwn PCM No . 003
NOTlFICATJON TO COl'ffRACTOR:
We are considering making the chan~e to the contract described in the attached materials. and
rt...qUC$l that yc,u ta ke the following nction ;
---Norif:,· us th.at -you wm::ur th:11 this change doe~ not r~quin! a change in coutrnc l time or amoul'l L
I\ fa1ld \)rder will be iss11ed ..
X Submit ll rri ~.e _pn,p u,ai "~th det ailed co st brenk dowTI \JI labur. mat erials. eqnip1nent, a nd 1111
o ther cos ts l!ssoc.iakd wilh this clu!oge. and a revtscd scl1ed\J!e fo r performing r.he desciibed
c hange.
Proceed with fhe chsngc order under timennd mntmals prnvisions ol'the comrnct. ---
BY: ~~c.5:-: Do,:.:;
CONTRACTOR'S RESPONSE:
W:." re.spond to yo ur request <'.S foll ows ;
---We concur tb r.t ,h\s is c no cost or ti me chaugc _ See attriChed field order.
X We submit t hN11.mchcd pri ce ;imposal with derailed cos t t,re:ikd Clwn and re vised schcth:le fcir . ---l'erfonning tb e describe<i thaugc.
---We are prm:ee-ding with change under time nm! materia ls pmYisio!lS of the contract.
. ,r
UY : -4" ..-:.. --·<:ft. r-Fc,,<'.. ., Date : 1'L I ~-{ ;
/ ·'. -"-'--·' I '.). ~-. i -· ' I
~
AC110N TAKEN:
---Pmpost"d Cnm rllt:1 Modiiic111iun rejec ted. Com rac tor notified not 10 r~-pond.
BY : Da:e
---Fie ld On:ler lss t:ed: No. Date By ---
___ C11:in ge Order Issued : No . Dote By -
Page 1 of 2
eR1ME CON rn QL S
CHeNCE ORUER REQUES r
0 1\te 9vbmltttd!................................................. ................ .. ....................... 12/fSl :lO tt
PC Change Ordtt Requnl (COAJ Numbt ri................................... .................... COH,2AI
Cont,ocl or S ubcontrtt ct ~,umb u : ................................................................... .
Pro je ct Nam•: ............................................................................................. . Cit y of Ft. Wo.,1h . VH1sge Crt11 k wwrP
tto m DttsduUon l ·
lN High Walor La•el System Shi.II Down per PCM-003
RiHon FofChanat
Subto~
JH T 11.0nMtOon:of
Mi1 ltrh1l Coils: Subtoted
J.&.h2.( {t-twrly Ralat fnc!udc Pay,ott 'r3,:t'<) & ln1JUmOCO}
M covnt t\,t(1 nnye.r
PmtodMon11~r
OAl!)(;./Sufo ty $up•""""
Sr.srs1"'nl\rual'f$I
P1t~OCI Engtnce r
Flo ld EnglMot
CudJOudtsm n
COltllol l &th!li<IOII
P mj,,<1 Superf,ndon(
.Jovm sy mon IMh.'11*5
Ho lptu ln:s:lafttt 1
PonmS hopM a""1)ef
Pon<W Amimbly l.abof
Cloricol l ab!,r
Labor Cott• -Sub totel
Tri!Y91 Eaetnllt
Aff FM > (W.11 O<l lail)
LCdgmm Cltl!,_ (Por DnylPO< Mon)
POf Oi1:1m Cha,got (Pc, Ony!P'or Mitnt
L11bo r ln1v49:f Etp1n.1e• Sublot•I
Su b£ontr1c tor ChA!ll!l
Eleclricol SU'->lrntlo< (XYZ Contr11e10t)
~~:fHlfllCQI S,1,l)Qonirai;lor
CMi Su1>00.-.11n<1or
Olhe• Su1-!h""1ol'
9ubcontractM Coil.a Subtotal
Olr!cl Jobf 19 COIII ~bin fo, E...tOC'dl!O Sct-.edv!e tmdior S1Ntciai Cot.hi)
Ol!IC<t Tr.!l!H (Per Vlo&k C~ rq<>I
('"'"""""' R .. tal (Per We C'.llorq,,J C'"""'"''°' ~uel (Por W k C110,goJ '"'"96 lrad!l< RCf)!ttl (Por Wctll ChftflJ't)
1>on,A-Jcl•n R11nl•l (I'•• Wock Ch"'ll•)
On ke"""""'1orRtn1-l(,,.,.Weti<~I
-& Ut,1110.011'11 w Charge)
T"'°" & Oas Pe, W~ Clwgtl
Sp<:<, raoVEqulp RO<lloi (V&t w .. , Chtwg,,)
OlNJC.f JO!f •• Co•I• 8uhlotal
T ot111 O!tec1 C<,sla
~ & Pmld Cho,go (15% hlt lldM · IO'l<o lor C tffll•J
To lal COR Amomt1
Nott~
No me teriaJ 1cquited Pf)t tcivls lld PCM-OOl 1CC1t1Ved on 12,'612(U 1
Ch ... lt•qwd 1 11.,, I
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88.00 3S2 .00
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&1.00 6~800
66.00 27:1.00
000 Hl800
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27.(1() 54 .00
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10000 000
000 0.00
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0.00 000
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J50 00 000
40000 000
J 00 .00 000
10000 uOO
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8000 0 00
200 00 flllOO
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000
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1,6 11200
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tl1d It em
..
PC M #3
Village Creek WWTP
Village Creek Redalmed Water Eas tern Delivery System
OWNER:
ENG INEER:
Ci ty of Fort Worth Texas
Alan Plummer Associates, Inc .
1320 South University Dri ve, Suite 300
Fort W orth , TX 76107
CONTRACTO R: ARCHER WESTERN CONTRACTO RS , LTD
2 121 AVENU E J, SU ITE #103
AR LI NGTON, TEXAS 76006
Descriot 1on
.an~N
MA (P N••• "0 --.. ,.:, .. , •' .... ,
:-,, "
l"U ~
..
WHF Electric
,.. "c-a '·· ,,.
1u 1AL:S:
Labor Burden @ 48% of Labor
Small Tools@ 15o/o ofLabor
Safety Supplies@ 7.5% of Labor
U l"L u1r,C:\,I \,U ,>I,> u~ vv, ,,,...,1v'"':
OH&P @ 15o/o
Subcontrador Cos t
OH&P Subcontractor @ 10%
lnsu.-ance and Bond @ 1.5 %
Otv
.
. .,
Subtotal :
Unit t
IMH
MH
MH
MH
IJ
r,
IJ
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1.00 IL S I
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page 1
WORK DESC RIPTI ON:
Complete Work as Described 1n PC M 3
Un iUPnce Labo r I Ma teri al I Eauioment Subcontracto r
19.0u SO .OD
19.00 SO .OD
19.00 )U.W
19.00 SO .OD
19.00 0.00
19 .0u O.Ou
19.00 0.00
19.00 0.00
il900 0.00
19.u , 0.00
19.0 o.w
19.0, 0.00
19.01 o.w
19.0 0 .00
0.00
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0.00 . C ,
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,o.oo $0 .00 $0 .00
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WHF ELECTRICAL CONTRACTORS-2903 CAPITAL DR , WYLIE , TX, 75098
ADJUSTMENT FOR CHANGES IN WORK
PROJECT NO . 253 REVISION NO . 4R
PROJECT NAME : Village Creek WWTP DATE : 12/6/2011
DESC . OF CHANGES UV High Water Leve l System
PCM-003
QNT'Y LABOR M/E M/E
DESCRIPTION REC 'D UNIT UNIT LABOR UNIT TOTAL
1" Alum Conduit
1" Un istrut Straps
1" Alum LB
1" Alum Hub
Prime Controls
0 LF $2 .00 $0 .00
0 EA $0 .00 $0 .00
0 EA $10 .00 $0 .00
0 EA $7 .50 $0 .00
1 LS $0.00 $0 .00
I so.oo I
SUBTOTAL (LABOR , MAT., EQUIP ., SUB.)
LABOR BURDEN 36% OF LABOR
FRINGE BENIFITS 5% OF LABOR
PLUS OH&P 15% OF LINE A ,B,C
SALES TAX
BOND ADDER
TOT AL (A+B+C+D+E+F)
$2 .10 $0 .00
$2 .85 $0 .00
$18 .50 $0.00
$5 .50 $0 .00.
$0.00 $0 .00
I $0 .00 I
Equipment/
SUBCONTRACT
$2 ,164.30
$2 ,164.30
$2,164 .30
$0 .00
$0 .00
$324 .65
$0 .00
$62 .22
$2,551.17
318-042-22
SECTION 17920
CONTROL NARRATIVE
TABLE OF CONTENTS :
A. UV System Va riable Speed Pumps : Loop 100 ................................................................. 2
B. Wet Well Level Control : Loop 1000 ................................................................................. 3
C. Filter Effluent Channel Level Swi tch Low: Loop 101 ........................................................ 5
D. Flow Meter: Loop 102 ...................................................................................................... 5
E. Turbidity Meter : Loop 103 ................................................................................................ 6
F. UV System: Loop 104 ...................................................................................................... 7
G. Reclaimed Water Pump Station Isolation Valve: Loop 105 .............................................. 8
H. UV System Diversion Valve: Loop 106 ............................................................................ 9
I. Reuse Pump Station Wet Well Level : Loop 107 ............................................................ 10
J. UV Channel Level Switch High Interlock: Loop 108 ....................................................... 11
1792 0-1
CONTROL NARRAT IVE
VI LLAGE CREEK RE CLA IME D W A TE R Q UALITY IM PRO VEME NTS
November 16. 2011
CITY OF FORT WORTH
PROPOSED CONTRACT MODIFICATION (PC1VI)
Project Villa~c Creek Reclaim -UV S;istem Project No. P275-70530023183
Fund: Account Center
Contractor Archer Western Contractor's Project No.
Engineer Alan Plummer Associates, Inc. Engineer's Project Number CFW08085
Construction Farida Godcrya_, Ph.D., P.E Construction Manager's 00213
Manager Project Number Cont. 41358
PCM Description UV Tank Sameiin~ Taes PCMNo. 004AW
The Owner proposes to make the following additions, modifications or d eletions to the work
-described in the Contrac t -Documents. Authorization to proceed ,vith these chan ges mus t be
approved by FieJd Order or C h ange O rder in a ccordance with the C o ntra ct Doc u me n ts.
Provide two sample points fo.r the UV tank. Provide 1" taps on the influent an<l effluent b oxes per Trojan's
instructions. Locate the influent box tap on the east s ide and the tap on the effluent box on the north end of .
the structure as shown on the attached drawing. On the effluent tap, extend I" sample pipe into the effiuent
box 1 ft. For bothsampHng locations, in stall a I '' threaded nipple in the penetration per coordination with
Trojan's recommendation. Connect to the nipple an elbow and a vertical run of pipe extending downward
from the elbow as shown on the drawing for the influent sample tap . A l" stain less steel ball valve shall
be attached at the end of the verti c al run. Underneath each sample tap, install a 6" PVC catch basin and 2"
PVC drain line, like those al ready in use at the plant. For the effluent tap, the dra in line shall slope to drain
off the slab into the crushed rock area adjacent to the slab on the north. On the influent side, run the drain
to the crushed rock area to the south of the slab. Contractor shall install drain lines such that impedance to
access and tripping hazards are minimized . Unless otherwise specified, a ll pipe and fittings shall be
Schedule 40 304 SS. Contractor shall perform this scope of work in compliance with 15015 and related
sections.
I have reviewed the construction documents with Lhe. Contractor and the proposed Time and Materia l
estima tes provided by the Contractor. The estimated costs appear reasonable for the proposed work. The
work has also been coord inated with plant staff as well as ou r design team. No additional contract time is
"'"""''d by the Co~odmeot
~I. 1-fi~ Date: \/J 8/l2-Reviewed By : . -·</' . " ,,,: • ~ [TCiJ..3 i!l
J
BY: ~ .\.~ -j (~0-0 ~~ ~ G. ~ ~ ~ ~~ ,. \ Date: 2. } Lc> l 7-,a 1 2-
~ -d I
r . / Page 2 of 2
CITY OF FO RT WORTH
PROPO SED CONTR ACT MODIFICATION (PCl\'l)
Project Villa~e Creek Reclaim -UV S~tem Project No. P2 75-70530023183
Fund: Acco unt Center
Contractor Archer Western Contmclor's Project No .
Engineer Alan Plummer Associate s, Inc. Engineer's Projcci Number CFW08085
Constructio n Faridn Goderya,. Pb, D., P.E. Construction Manager's 00213
Mnnager Project Number Cont. 4 1358
PCM Description UV Tank Samp li1~ Taes PCM No. 004AW
NOTIFICATION TO CONTRACTOR:
We are c~nsidering making the change to the contract described in rhe attached materials. and
req u est that yo u take th e fo ll owing action :
___ Notify us that you concur that this change docs not require a change in contract time or amount.
A field order w ill be is$ued.
X Submit a pticc proposal with detai led cost break<low11 of labor, materia ls, equipment, a ud ni l
--.-other costs nssocioted with this cbnnge. and a revised schedule for p erforming the descri b ed
change.
Proceed with the change order under time and materials provisions oft he contract ---
llY: ~~ :2C!&~~~Date: 1/6/12
7 7
CO NTRA CTOR'S .RE SPONSE:
\\le r esp on d to you r request as follows :
We concur that this is e no cost or time chanec. Sec attached field order. ----
~ We su bmit the attached price proposal with detailed cost breakdown and re vised schedul e for.
Perfonniog the descri.tied chnnge.
___ We ore proceeding wi th chunge under time and materials provi s ions of the contract.
DY: Id·, 0 ~vl I -/{-/7 -i'ri . \'~ ~17~ r Date : I
I f/
ACTI ON TAKEN:
___ l'roposed Contract Modification rejected. Contractor notified not to resp ond
HY: Date
Field Order [ssued: No. Date By ------
_ Change Order ls~-ued: No. D ate By ---
Page 1 of2
tlld Item
PCM4
Village Creek WWTP
Village Creek Red aimed Water Eastern Delivery System
OWNER: City of Fort Worth Texas
ENG INEER: Al an Plummer Associates, Inc.
I 320 Soulh Unlversily Drive , Suile 300
Fort Wo,th . TX 76 107
CONTRACTOR: ARCHE R WESTERN CO NTRACTORS, LTD
2 12 1 AVENUE J , SUITE #1 0 3
ARLINGTO N, TEXAS 76006
D esaiotlon I .MD~ft
nstall ~amo1e Pica anti vatves
nslall Drain Plott and Pim, Clamos
unnd/Pass1vate Welds
·--·~ft·-·
Ss Pioe and Hau Valves
1/-"Vl Catch Basm/Dram L 1ne Material
S s Uni strut Pioe Clamos and An cnors
Weid ar
Ml!ICECDJ,IEOD!I IT•-•
IU I AC::,:
Labor Burden @ 48'4 of Labor
Sma ll Tools @ 15% of Labor
Safetv Suooll es @ 7.5% of Labor
IUI AI. U IKtl.,I 1.,u:,1:, Of l.VN l n n~i v «:
OH&P @ 15%
Subcontract0< Cost
OH&P for Subcootracto,@ 10%
Insurance and Bond 15%
Qty
Sub total:
UIM.IL ""NK JtJr.11 "'~ .u .~ S l H .. Lr,,lftr.:
page l
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WORK DESCRIPTION:
Install Sample Points on th e UV lnnuenl and Effluent
··Note : Time Extentlon of 4 Week•
Unit/Pnce I Labor I Malarial Eauiome nt I Subcont racto r
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03 '18-042-24
August 15, 2 011
Dr. Faritla Goderya, PE, PhD
Project Man.:tger
City of Fort Worth W ater Departm ent
·1000 Throckmorton St reet
Fo rt Worth, Texas 76102
Re : C ily of Fort Worth
Village Creek Reclaimed W ate r Eastern De livery System
UV W ater Qua li ty Improvements
Contractor Modification Reque s t l'Jo. 2: Moclifications to UV P latform
Dear Dr. Goderya :
A lan P lu mmer Associates, Inc. (APA I) is recommending approva l of CMR -002 for the above-
referenced project
CMR-002 relates to the modifications to the u lt ravio le t (UV) metal p lr,:itform . Th is CM R
in corporates three minor changes. During review of the platform "tlOp drawing, APAI raised a
co nce rn about the split leve l of the grating. It was deemed to provide a less th an optim al
mrangeme nt for p lant statr to navigate mound the top of thA ta nk . T liere fore, the contractor was
as l<ed to ma ke the platform fini shed tloor a ll the sa m e elevation, m atc hin g th e top o f the UV ta n I<
elevation . Furthermore, sin ce the meta l fabricator wou ld be re-d e tail in g connections as part of
the mod ifi catio n , APA ! requested, w ith the Owne r's consent , tha t the p latform stairs be
sym m etric al (ch nging the west side to loo !< like the eas t s ide). Lastl y, the contractor was
directed to m nke the dime nsions of the pl a tform grating w idth con fo rm to the contract drawin gs .
The co n tractor's co.st es timate for this work is $8 ,992 .29 wit h 110 add ition al tim e requested. The
rele van t documents are a ttached .
If yo u have a ny questions regarding this proposed ch a nge, please contact me .
Sin cerel y,
ALAN PLUMMER ASS O C IAT ES, INC .
tf£:;;/l ,lf'I! (k~-
C letu s R. Matlin , P .E.
P roje ct Manag er
CHMrrM H/vl w
E nclosu re s
cc: Mr . .J e ffrey E. Caffey, P E., A P/\1
UIN F B A
P .O. 0 X 12 30
SEG UIN . TEXAS 78156-1230
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UIN FA RI ATORS, Ltd.
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O\'INER:
E :G INE ER:
C,ly ol Fort Worth Te>as
Nan Plu mme, Assoc iat es. Inc.
132 0 South Univers it y Dr ive, Sui te 300
Fort Wort h , TX 76107
CCN TRACT OR : ARCHER WESTERN CONTRACTORS , l TO
2121 AV ENU E J , SUITE #103
ARLINGT ON, TEXAS 76006
OH&P@IS;~
Subeo nl!a,10< Cost
OH P for Subconllactor 10'h
Ins urance and Bond @ 1.5(~
CMR2
Village Creek WWTP
v,:r ag, Creek Rec 'aimed Wat e, Ea,tern Oe live,y System
WORK OE SCR lf'TtON:
MO<f s to the UV Plalf0<m
u ment
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1/1)( 81/0101116
lflPE. r,,m No I )
f:NVmONME NTt\L
EN G IN EE RS /\ND SC IENTISTS
03 '18 -042 -24
August 24, 2011
Dr. Farida Goderya, PE, PhD
Pro j ec t Manager
City of Fort Worth Water Department
100 0 Throcl<morton Str ee t
Fort Worth , Texas 76102
Re: City of Fort Worth
Village Cre ek Reclaimed W ater Eastern Delivery System
UV W ater Quality Improvements
Contractor Modification f{equest No . 3: Stop Logs
Dear Or . Goclerya :
Alan Plummer Associates, Inc . (APAI) is recommending approval of CMH -003 for the above-
referenced project.
CMH -003 relates to the stop logs fabricated to control the flow of wat er during in stall ation of the
ultraviolet (UV) pump station subm ersible pump s. T hi s iss ue origin ated vi a RFl --18, when th e
Contractor stated tlmt they needed to purch ase plates and stiffeners for shutdown . After
delibernt ion regarding wh at the Contractor's contractual obligutlons were to perform thi s tas k , and
In light of th e disc overy that the check valves did not close all th e way, APAI and Arch er West ern
agreed th at the cost of this CMR would be cut in half from the original $6,866.60 cost propo sa l.
The con tra ctor's cost es tim ate for this worl< is $3,4 33 .30 with no addition al tim e requ es ted . T he
re levant doc um ents are att ac hed .
If you have any qu es tion s regard ing thi s propose d change, pl ease co nt ac t me.
Sincere ly,
/\L/\N PLUMM ER ASSOCIAT ES , IN C.
~ILJY}~
Cle tu s R. Martin , P.E.
Proj ec t Man age r
CRM/TMH/vlw
Enclo sures
cc: Mr . Jeffrey E. Caffey, P.E., Alan Plumm er Associ ates , Inc., Fo rt Worth , Texas
F. \Pro{e<ls \JJJ 18\0-12 -24\Conslredrnjn\Con slrvciion l,lodificallon,ICl,IA\R0<01r,nond'l1ion l oll or.\Cl,ln 003 lle<:o mmoooalion Doc
(~
EQUEST FOR INFORMATION
(RFI)
Owner: Fo rt Worth Water Deeartment · Date: 6/13/11
Alan Plummer Project 0318 -042-
Contractor: Archer Western No .: 22
Village Creek Reclaimed Water Eastern Delivery
Project Name: Sj'.stem Water Qualitj'. lmQrovement RFI No.: 18
RFI Title: Sta~ Logs at the UV PUrnQ Station Spec/Dwg. Reference:
Authored By: Clint Stafford CPM Activity Impacted:
Information and Reason Requested
On Friday 6/17 /11, contractor is scheduled to have a shutdown to install the submersible sewage pumps
at the UV Pump Station. Through communication with the plant, it appears that Hie original stop logs .to
prevent flow from the chlorine contact basin have been misplaced. Contractor's orlginall plan was to use
two existing steel plates, however they are too thick to fit in the grooves at the pump station. Therefore,
two steel plates and stiffeners will need to be purchased for the shutdown. Contractor will incur material,
labor and welding cost and will need to be compensated. Please direct contractor on how to proceed.
Please expedite a response because of the shutdown scheduled for Friday .
Authored By: j Clint Stafford j Date Submitted: j 6/13/11
Response to Request:
1. In accordance with the Contract Documents; G-001 -General Construction Note No. 36, the
Contractor is responsible to provide whatever means and equipment necessary to control water
during construction .
2. In accordance with AW's email correspondence, the estimated value of the stop log(s) Is $7,000.00 .
The FWWD is willing to compromise and compensate AW for% of the stop log(s) value if the stop
logs are given to the plant when the work is completed .
'!0/ ,JZ 41-,-.,::Jt t ;:
;, ~
Firm: j CP& Y, Inc . j Signature: j{Michael F. Gr aves, PE I Data Returned: j 6/15/2011
CII.R 3
V,llag e Creek 'IIVITP
Vi ll age Crook Recla lmod Water East ern Dellvary System
B:dllem
··-----·
----
OWNER :
ENGINEER :
City of F orl l'lorlh Ta.as
Ala n Plummer Assoelales , Inc .
1320 South Unive rs ity Drive . Suile 300
Fo,t 1//orth , 'TX 76 107
CON TRACTOR : ARCHER WESTERN CON TRACTO RS . LTD
1121 AVEN UE J, SUITE #103
ARI.INGTON . TEXAS 16006
Desc,lot lon I 0 1,
.,mun
""I Ptoles ---io.uu
Ass isi Welder 13 .00
Ill'\ t111n
p1o tcs ana ~ur,encrs t.00
Neo Dtene t.00
Adhes ive :;;orav 1.00
l ~UUWM ~rtl
-----------------
UM I un,vPnce
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1.1H Sl9.00
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Labor ou,den @48,', of Law
Small Tools@ 15,'t of Labor
Safol v Su ool ies @ 7.5'!, of Lab<)(
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OH&P @ 151,.
Subc:onl/acto, CO$!
OH &P fDt Subcon lta ctor@ 10 ;-.
Insura nc e and Bond @ l .5 ~'.,
Subtot al: OE DUCT $3 ,433.30
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page l
WORK UESCHIPIION:
Supp ly and F ab Slop Logs lo, UV Pump Sla llon Per RF! 18
• Labor I Mateua l I Eoulomen t I Subcontractor I Total s
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-r247.00
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ENV IRON ME N JA L
ENG INEERS /\ND SCIF.N rlSTS
0318-042-24
Februa ry 2 0 , 201 2
Dr. Fa rida Gode rya , PE , P hD
Project Manager
C ity of Fort Worth W ate r Dep artment
1000 T h rockmorton Street
Fort Worth, T exas 76102
Re : Ci ty of Fo rt Worth
Vi ll age Creel< Re cla imed Water Easte rn Delive ry Sy te rn
UV W ater Q ua lity Improve me nts
Contracto r Modification Hequest No. 5: Iso lation Va lve o n UV Efflu e nt Dra in
Dear Dr. Godery a:
A la n P lu m m e r A ssoc iates. Inc . (APAI) is reco mmend ing a pprova l of C MR -005 fo r the a bove-
re fe re nced proj ect.
C MR -00 5 re lates to isolating the flow of th e UV efflu ent drain from the dra in on the influent s ide.
T he Contracto r bro ug ht up th is q uestio n in RF l -32. T he rea so n for adding th e 2-inc l, stain less
steel ba ll va lve is to e nsure th at un treate d flow on the influent s ide does not bypass d is infection
and b lend with treated flow. T he cont ractor's cost estimate fo r thi s work is $994 .97 w ith no
addition a l tim e reque sted . The re levant documents are attac hed .
If yo u have a ny q ues tion s reg a rdi ng th is pro posed change , please contact me .
Si ncerely,
ALAN PLUMM E R A SS OCIATES. INC. e &1~1--~Jiv? (1.;1i;v,.
C letus R. Martin , P .E .
Project Ma nager
CRM/TMH/vlw
Enclosu res
cc : Mr. Jeffrey E. Caffey , P.E., A lan P lummer As sociates, In c ., Fort Worth, Texas
llf tw2 .Flw.Apa,\Sh a re\Projects\03 18\042-24\Conslradmin\Cons lruction Mod fi callonslCMR IRecommendalion lellerslCMR 005 R..-,nnuMnrlillinn One
REQUEST FOR INFORMATION
(RFI)
Owne r: Fort Worth W ater De Qartm en t Date: 1/17/12
Alan Plummer Project 0318-042-
Contractor: Archer Western No .: 22
Village Creek Reclaimed W ater Eastern Delivery
Project Name: Sl'.stem Water Qualitt: lmQrov emen t RF I No.: 32
RFI Title: UV Drain Line Spec/Dwg. Reference:
Authored By: Clint Stafford CPM Activity Impacted:
Information and Reason Requested
The UV System has a drain line for the Influent Box and the Effluent Box . Both drain lines tie into each
other and they are not iso lated. The water from the Influent Box is not disinfected and it can travel to the
Effluen t side and discharge out of the system . A va lve may need to be ad ded to isolate the two drain
lin es. In the atta ched drawing, cont ract or shows a proposed solution . Please direct contractor on how
to proceed.
Authored By: I Clint Stafford I Date Submitted: I 1/17/12
Response to Request:
Contractor is to proceed with installing a gate valve at the location proposed . Work shall be
performed in compliance with contract docu ments .
\ .,,, ) -/
Firm: I APAI I Signa tur e: I /, ert(. (Ta nia-'M~~ · · . . ) I Date Returned: I 1111112
" '
•
Bid Item
CMRS
Village Creek WWTP
Vi llage Creek Red aimed W~ter Ea stern Del iv ery Sys tem
OWNE R:
ENG INEER:
Ci ty or F ort W orth TAll3S
Al an Plummer Assoc iates , Inc .
1320 South University Drive, Suite 300
Fo rt Worth , TX 76107
CO NTRACTOR: ARCHER WESTERN CONTRACTORS , LTD
2 12 1 AVENUE J, SUIT E #103
AR LINGTON , TEXAS 76006
DescrioUo n I
-~gun
Remove Pioe Insulation an d Cu t SS P ioe .
'"'" en-~
S :; val ve
l~LI U IP"'ftlll:.NJ
Sl1r:n ... L1n ""~ 1
WekJe r I
Bland ln suleUon I
I
I
,M<~• .. <~M~
,u r ALS:
Labor Burden @ 48% of Labor
Small Tool s @ 15% of Labor
Safetv Suoc lie• 1111 7.S'ro of Labor
I U II\LUIKl:<,f C.OS 1:,0 F ~u,il =~'"':
OH &P @ 15%
Subcontractor Cost
OH &P for Subconlractor@ 10%
Insurance and Bond @ I 5%
Olv
Subtotal:
I I Ull'\L. ~nm..1UN I 1nt;) 1.,J:-.. su,,-" -·
page l
I Unit I
4.00 ,~M
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1.00 LS
1.00 I LS I
1 00 ILS I
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19 .00 0 .
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WORK DES CRIPTION:
Insta ll an lsolalion Valve on the UV drain li ne.
Reforenco RFI 32
Material Eauiomenl ' Su bco ntractor
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