205-CPH-Change Order for SNWRFCONTRACT CHANGE ORDER
CPH Project No.: II S0640.03
Change Order No.: JL 3
Date: November 8, 2005
Location: Sanford North Water Reclamation Facility (SNWRF)
Type: Additive
Description of Change:
WaterlB
This change order addresses items required to ensure a complete, safe and durable Primar
Treatment/Disinfection System as well as the treatment capabilities of the Sanford North
Reclamation Facility. The changes included in this change order are the removal and replacement of the
existing Secondary Clarifier No. 3 sludge rake mechanism and bridge structure and the addition of a
second automatic continuous cleaning bar screen and a screenings conveyor at the new influent structure.
This change order also includes credits from the contractor for Owner Direct Purchase items.
Reason for Change:
Secondary Clarifier No. 3 has been in operation for 20 years which is the typical life expectancy for clarifier
equipment. Due to the age of the equipment, continued increases in time and cost for maintenance and
to ensure reliability of treatment and continuous operation, the total replacement of the operational
mechanism has become necessary. This will complete the replacement of all of the SNWRF's clarifier
equipment which was begun three years ago.
A automatic continuous cleaning second bar screen is being added to the new influent structure in the
channel already constructed for this purpose. This will provide the new influent structure with the capability
of accommodating the entire raw wastewater flow to the SNRWF and will allow for the demolition of the
existing grit and wastewater screening structure and eliminate another source of wastewater plant odors.
Due to the efficiency of the new bar screens
installed in the new influent structure, waste screenings have
increased significantly, resulting in additional operator time to monitor, rotate and empty the screening
d umpsters. The addition of a screenings conveyor will allow for the removal of water from the screenings,
reducing the volume of waste being collected in the dumpster, and will allow for the use of a single
dumpster to handle both mechanical bar screens. This will reduce operator time currently being dedicated
to the new influent structure.
ADDITIONS
a.) Furnish and install new bar screen and screenings conveyor and all
associated appudenances and electrical controls. (CHP-35)
b.) Remove and replace Clarifler No. 3 equipment and bridge
(CHP-36)
DEDUCTS
c.) Owner Direct Purchase deduction for Clarifier and Bar screen
equipment. (CHP-39)
$240,000.00
$355,O00.00
($316,875.70)
1 Total Proposed Increase
~ in Contract Cost: i $278,124.30
3 Total of all Previous Change Orders
(Change Order No. 1 & 2 ) ($385,979.95)
4 Current Contract Price:
(Total of Items 2 and 3 above) $2,461,020.05
5 New Total Contract Price:
(Total of Items 1 and 4 above) $2,739,144.35
6 Original Contract Time (days): 300
7 Additional Time (days) approved:
(Change Order No. 1) 322
8 Current Contract Time (days):
~ (Total of Items No. 6 and 7) ~ 622
9 Additional Days Proposed in this Change Order 90
10 New Contract Time (days):
(Total of Items No. 8 and 9) 712
~New Construction Final Corn letion Date:
Recommended by:
Date
Accepted by:
Contractor
Date
Accepted by:
Date
NOV=04-2005 FRI 01:56 PH N-H SHITH BRCK RDHIN FRX NO. 4073214684 P. 02/02
Wharton-Smith, Inc.
CONSTRUCTION GROUP
November 4, 2005
CPH Engineers, lnc
500 W. Fulton Street
Sanford., Fl. 32771
ATTN: Ber~jamin M. Fries
RE: Barscreen and Compactor
Dear Mr. Fries;
The cost to add a second barscreen, a compactor and a new control panel on thc infiuent
structure on the Sanford North PT/D job will be $240,000.00. Please log this as
proposed change order #35. We reqt~est a time extension of 90 days from proposal
acceptance due to equipment lead time and installation time.
Please advise on how you would like us to proceed.
Sincerely,
Wharton-Smith, INC.
Clmstopher Gayner
Project Mana§er
CC: File 04-003 C-10A & C-SA
750 Cotmt'y lt. oad 15 - P.O. gc~x 471028 · Lal¢c Monrr~c, I~lo,'lda 32747-102B - l)hon~; 407/321-8410 · Fax 407/3-33-1236
,_ N0Vr07-2005 MeN 02:10 PM
F~× NO.
P. 02/02
Wharton-Smith, Inc.
CONSTRUCTION GROUP
October 5, 2005
CPH Engineers, ~nc
500 W. Fulton Street
Sanford, Fl. 32771
ATTN; Benjamin M, Fries
P-LE; Clanfier #3
Dea~ Mr. Fries:
The cost to demolish the existing clanficr #3 mechanism mzd add a Oew mechanism on
thc 8anford North PT/D job will be I;355,000,00. Please log this as cb.age proposal #36
Wc request a time extension ofg0 days from pro¢osaI acceptance duc to equipment Icad
time and installation time.
Please advise on how you would like us to proceed.
Sincerely,
Wharton-Smith, INC.
Christopher Gayner
Project Manager
CC: File 04-003 C-10A & C-SA
750 County Road 15 · RO. Box 47102~1 · l.nlce Mom,~e, I;Iorid{, 32747-1028 ' Phm!e: 407/321-8410 "F~x 407/323-1236
NOV~4-2005 FR[ 02:43 PM ~-H SM[TH BRCK RD~IN FRX NO. 4073214684 P. 02
Wharton-Smith, Inc.
CONSTRUCTION GROUP
November 4, 2005
CPH Engineers, Inc
500 W. Fulton Street
Sm~ford, Fi. 32771
ATTN: Benjamin M. Fries
RE: Owner Direct Purchase-Barscreen and Cladfier
Dear Mr. Fries:
Attached is the deduct for the owner direct purchase of the second barscreen mechanism
and the ¢iarifier mechanism in tank #3 on the 8anford North WRF job.
The deduct wilt be $316,875.70.
Please advise on how you would like us to proceed.
Sincerely,
Whmon-Smith, INC.
Christopher Gayner
Project Manager
CC: File 04-003 C-10A & C-gA
'/50 Count~ Rmtd 15 · PO Box 471028 · Lake Mom'oe, Flolidn 3274"/-10~1~ · Phone: 4071)21-8410 · Fnx 407/32~-1236
NOV-04-2005 FR] 02:44 PM g!-H $11ITH BRCK RDr'IIN
Summary
F~X NO. 40732]4684
PROPOSAL SUMMARY
P. 03
Revision 0 PCO #039
1 Credit to the City to purchase equipment directly from vendors and utilize their tax exempi status,
2 "*THIS IS FOR THE CLARIFIER AND SECOND BARSCREEN EQUIPMENT'"
4
§
6
7
9 [he Contract T~me Extension due to thls,C;'/.~gC.Or~ef.. Is ~_ working days,
17 FrumP,ge3 I 01 I ' I$" -
I'~
20
2~ From Page 4 ,I $ "
23
26
2~
30
36 Exlend~ Prelect Overhead ~ 3aye, Cosl Per Day
~ Additional Insurance 0 00% ~ · L * T&E · S $ (316,875.7C
~ Addl[Iona~ Bond 0,00% ~ + L * T&E * S $ (316,875.7C
NBt~-04-2005 FRI 02:44 PM i~-H SMITH B~OK RDM[N
Pg 2 Materials
FRX NO, 4073214684
P, 04
w~,~....-s,,,.,, ~r.,=. MATERIAL ESTIMATE
1 F'arksonCorl~oratlon-Baracreen .1 LS $ 116,000D0 $ [116.000.00)
2 -.Tax on above -1 LS $ 7,010,0D $ I7,010 O0
_3 t;nviroqulp-Clad0er -1 LS $ 181,900,00 $ (181,g00.00)
4 -.Tax oH above -t LS $ 10,964,0G $ (10,964 00
5 , PEI-FRP Ducl -1 LS $ 945.00 $ (945,oo)
6 .,Tax on above -1 LS $ 56,7D $ (56,70
7
8
1~
12
lg $
14
,23 $
'24 ITOTALTAX SAVINGS LS $ 18,030 70 $
25
!26
27
28
45 $ (31E,875,*0
~. J:~ $ ~ ~ ~ ~., ~ ,:,,,~{a,a 6,SIs