HomeMy WebLinkAboutClearwell Baffling & Chemical Feed Replacement Project (2)
Augusta Richmond GA
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YEAR:"O'
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NUMBER OF PAGES: \ L\
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CHANGE ORDER
CO NUMBER 7
BID ITEM
DATE 1/11/01
PROJECT TITLE
OeaIWell Baffling & Chemical Feed Replacement Project
ORIGINAL CONTRACT DATE 6/1999
PROJECT NUMBER \XI-I
OWNER AUGUSTA COMMISSION
PO NUMBER
P08635
The following change order is hereby made to the proposal for the above project:
PAYEE
Aqua South Construction,
Ine.
TOTAL AMOUNT OF THIS O-IANGE ORDER
$
The contract time will be INCREASED by Q calendar days as a result of this change,
6,000.00
ORIGINAL CON1RACT COST
$
PREVIOUS CHANGE ORDER (INCREASE)
$
THIS CHANGE ORDER (INCREASE)
$
TOTAL CON1RACT \XfITH CHANGE ORDER
$
5425110
FUNDING NUMBER/ACCOUNT NUMBER
508043410
REQUESTED BY:
~-<
ENG EER
DATE:
SUBMITTED BY:
~ ~ ~ DATE:
(~~1.~~~
, ,DATE,
Ut1h]r:J1(/kiJ 1.l6111..a .
COMJ>1ROUER
/}f~ DATE:
FINANCE ENDORSEMENT:
RECOMMENDED BY:
APPROVED BY:
DATE:
1,207,688.00
496,065.10
6,000.00
1,709,753.10
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Harold J, Walker, President
Robert K. Beck, Vice;President Operations
Rhonda Johnson, Administrative Assistant
William C. Dobbing, Project Manager
Wade D. Woodring, Project Manager
Arthur D, Harper, Project Manager
J. Randall Myers, General Superintendent
January 8, 2001
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,. JAN 0 9 2001 1m
BY'
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CH2M-HILL
A TTN: Bob Davis
2822 Central Avenue
Augusta, Georgia 30909
Re: WATER TREATMENT PLANT CLEARWELL BAFFLING, VALVES, &
CHEMICAL FEED MODIFICATIONS, AUGUSTA UTILITIES
DEPARTMENT
Dear Mr. Davis,
Per your request, we offer to repair existing cracks in the floor of Clearwell #5 for
a unit price of $ 4.80 per lineal foot using the application procedure and detail
attached. This price includes application and any necessary surface prep
(dewatering and cleaning) based on existing conditions. Based on our initial
inspection, we estimate there to be approximately 1200 lineal feet of random
cracking.
Please address any concerns with the undersigned. Thank you for this
opportunity.
Sincerely,
aquaSouth CONSTRUCTION, INC.
cf
Dave Drown, ZEL Engineers
Rob Lorenz, CH2MHILL
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P,O, Box 747 .124 Eason Drive. Pooler, Georgia 31322
Tel. (912) 965- I 250 . Fax (9 I 2) 965-1044
Email: H20south@beIlsouth.net.Augusta.GA (706) 650-0124
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UTILITIES DEPARTMENT
N. MAX HICKS, PE, DIRECTOR
ADMINISTRATION
360 BAY STREET, SUITE 1 80
, AUGUSTA, GA 30901
(706) 312-4154 - FAX (706) 312-4123
MEMORANDUM
TO: \XI ALTER S. HORNSBY, INTERIM COUNTY ADMINISTRATOR
FROM: N. MAX HICKS, DIRECTOR, AUGUSTA lJIlLITIES
SUBJECT: W-1 CLEARWELL BAFFLING & CHEMICAL FEED REPLACEMENT PROJECT
DATE: 01110/01
CC: FlLE
Please find attached Change Order #7 for the above referenced project. The change order
consists of repairing the cracks in the concrete floor slab of ClearweU # 1 at the Highland Avenue
Water Treatment Plant. The clearweU is over 100 years old and has developed cracks in the floor
slab that allowed water to leak out of the stmcture. The cracks were discovered as a part of the
current project at the plant to repair the interior of the brick walls of the clearwell. The floor cracks
need to be repaired while the clearwell is out of service. The cost for the repairs is $6,000.00.
JAN 1 2 2001
....,..__-..unNn COUNTY
ADMi~i'Cf'~
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CHANGE ORDER
PROJECT TITLE
CO NUMBER 8
BID ITEM
DATE 1/11/01
CleatWell Baffling & Chemical Feed Replacement Project
ORIGINAL CONTRACT DATE 6/1999
PROJECT NUMBER \V-I
OWNER AUGUSTA COMMISSION
PO NUMBER
P08635
The following change order is hereby made to the proposal for the above project:
PAYEE
Aqua South Constl1.1ction,
Inc.
TOTAL AMOUNT OF TIllS CHANGE ORDER
$
9,354.00
The contract time will be INCREASED by Q calendar days as a result of this change.
ORIGINAL CONTRACT COST
PREVIOUS CHANGE ORDER (INCREASE)
TIllS CHANGE ORDER (INCREASE)
TOTAL CONTRACTwrrn CHANGE ORDER
$
1,207,688.00
$
502,065.10
$
9,354.00
$
1,719,107.10
FUNDING NUMBER! ACCOUNT NUMBER
508043410
5425110
REQUESTED BY:
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COMPTROUER
SUBMITTED BY:
FINANCE ENDORSEMENT:
RECOMMENDED BY:
APPROVED BY:
DATE: '';;'1
DATE: I 11z../o I
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DATE: /-/:1 -01
DATE: //s~
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Harold J. Walker, President
Robert K. Beck, Vice President Operations
Rhonda Johnson, Administrative Assistant
William C. Dobbing, Project Manager
Wade D, Woodring, Project Manager
Arthur D, Harper, Project Manager
1. Randall Myers, General Superintendent
January 8, 2001
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JAN 09 2001 II
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CH2MHILL
A TTN.: Bob Davis
2822 Central Avenue
Augusta, Georgia 30909
Re: WATER TREATMENT PLANT CLEARWELL BAFFLING, VALVES" &
CHEMICAL FEED MODIFICATIONS, AUGUSTA UTILITIES
DEPARTMENT
Dear Mr. Davis,
Per your request we extend our proposal to complete requested modifications to
Clearwell #2 for the lump sum price of Nine Thousand, Three Hundred, Fifty-
four Dollars [ $ 9,354.00 ] exactly. Our scope is detailed below and on the two
attached drawings for your review.
SCOPE
1. Disassemble three 30" influent pipe structures
down to base elbows/pedestal and remove from
the structure.
2. Cut 72" square opening in top of Clearwell #2,
cast stem wall w/AI hatch per the attached sketch.
Please review and address any concerns to undersigned. Thank you for your
consideration.
Sincerely,
aquaSouth CONSTRUCTION, INC.
W . Woo ring,
Project Manager
I>
P,O. Box 747 . 124 Eason Drive. Pooler, Georgia 31322
Tel. (912) 965-1250. Fax (912) 965-1044
Email: H20south@bellsouth.net.Augusta.GA (706) 650-0124
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MEMORANDUM
TO: WALTER S. HORNSBY, INTERIM COUNTY ADMINISTRATOR
FROM: N. MAX HICKS, DIRECTOR, AUGUSTA UTILITIES
SUBJECT: W-l CLEAR\xrELL BAFFLING & CHEMICAL FEED REPLACEMENT PROJEcr
DATE: 01/11/01
CC: FTI..E
Please find attached Change Order #8 for the above referenced project. The change order
consists of disassembly and removal of three 30-inch influent pipes within Clearwell #2 at the
Highland Avenue Water Treatment Plant. Also included within the change is the installation of a 6-
foot square access hatch in the clearwell roof slab to facilitate removal of the pipes. The piping, as
currently configured, limits the hydraulic flow capacity of the water treatment plant. By removing the
influent piping, the capacity will increase by approximately 15 million gallons per day. The cost for
the change order is $9,354.00.
JAM 1 2 2001
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CHANGE ORDER
CO NUMBER 9
BID ITEM
DATE 1/11/01
PROJECT TITLE
CleatWell Baffling & Chemical Feed Replacement Project
ORIGINAL CONTRACT DATE 6/1999
PROJECT NUMBER \'\1-1
OWNER AUGUSTA COMMISSION
PO NUMBER
P08635
The following change order is hereby made to the proposal for the above project:
PAYEE
Aqua South Construction,
Inc.
TOTAL AMOUNT OF THIS G-IANGE ORDER
$
5,568,00
The contract time will be INCREASED by Q calendar days as a result of this change.
ORIGINAL CONTRACT COST
$
1,207,688.00
PREVIOUS CHANGE ORDER (INCREASE)
$
511,419.10
THIS CHANGE ORDER (INCREASE)
$
5,568.00
TOTAL CONTRACTwrrn GIANGE ORDER
$
1,724,675.10
FUNDING NUMBER! ACCOUNT NUMBER
508043410
5425110
REQUESTED BY:
~~
ENG ER
DATE:
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SUBMITTED BY:
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COMP1ROLLER
DATE:
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FINANCE ENDORSEMENT:
DATE:
APPROVED BY:
RECOMMENDED BY:
DATE:
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SUMMARY OF ADDITIONAL WORK 1/8/01
AUGUSTA WATER PLANT, PROJECT W-01 ~~@~:ITW~1iII
J2j JAN 09 2001 ~
B y~ U_UU
--......--..---..--
1. Investigate Valve #5-3 by diver
2. Remove brick veneer @ C'well #5
3. Replace brick veneer @ C'well #5
4. Repair of Vertical Joints @ C'Well #5
5. Cleanup/Dewatering for C'well #5
6. Crack repair @ C'well #5
7. Investigation for Valve #5-3
$
1,590.00
953.00
1,144.00
1,881.00 --.
23,993.00
15,436.00
11.625.00
$ 56,622.00
<I~5'lnf,. ,0
=- I
TOTAL
Back up documents are attached for your use. Please advise if there are any
questions. Phone 912-965-1250.
Wade D. oodring
aquaSouth
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....ruld J. Walker. Presidcnt ; I
Robert K, Beck. Vice President Operalibns
RhOlida JnhnsO;l. Adminislrative Assis\tnl
William C. Dobbing. Projcct Managed,
WHde 0, Wuudring. Projcct Manager I
Arthur 0, Harpcr. Projcct Managcr : i
J. Randall Myers, Gcncral Supcrinlen~9nl
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November 1, 2000
ZEL ENGINEERS, INC.
ATTN.: C.D. Drown, P.E.
435 Telfair Street
Augusta, Georgia 30901'
(C(Q)[P1{
Re: WATER TREATMENT PLANT CLEARWELL BAFFLING, VALVES" &
CHEMICAL FEED MODIFICATIONS, AUGUSTA UTILITIES
DEPARTMENT
:. /
Dear Mr. Drown,
With respect to our on going investigation of Valve #5-3, we forward the Trip
Report for the inspection conducted on September 13, 2000 by Atlantic
Construction and Marine Services, Inc for your review.
The charge for this work is One Thousand Five Hundred Ninety Dollars
I $ 1,590.00 J exactly. Please review and address any concerns to undersigned.
Sincerely,
aquaSouth CONSTRUCTION, INC.
P.O. Box 747 · 124 Eason Drive. Pooler, Georgia 31322
Tel. (912) 965-1250. Fax (9J2) 965-1044
clIlaiJ: JJ20s0Ulh@!JcllsoUlh.IICl . Augusla, GA (7U6) 6SU-U 124
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ATlANnC CONSTRUCTION AND MARINE ~~~
P. O. 80x 2522 SAVANNAH, GEORGIA' (912) 232-6333 FAX 232~'"
October 31,2000
Aqua South Construction Inc.
P.O. Box 747
Pooler ,G.A 31322
Re:Underwater Pipeline Inspection
Mr. Wadc' Woodring
This docwnent covers the findings from t1le September 13, 2000 ACMS dive inspection
of a 30"pipeline and valve for Aqua South at the Augusta Ga. Potable water facilities
eastern clearwell. The initial plan for the divc was to enter the 30" pipeline to determine
whether or not the valve was operable or ifit could be forced open. When we were.called
about this job we were informed that the flow of the pipe would be minimal and that the
flow direction would be against the diver such as a headwind, but this was not the case.
After a quick review of the clearwell and the pipeline underwater I found that the flow of
the line was stronger than previously believed and that the flow was entering the pipeline
instead of exiting. In an attempt to penetrate the pipeline I leamed that the inside of the
pipe was covered with a very slick algae like substance which would make it virtually
impossible for me to push myself backward out of the pipe ifa problem should occur. I
came to the conclusion that the dive was unsafe WIder these conditions was consequently
not feasible.
After the dive was aborted, the workers on site were directed to open and close the
valve repeatedly to try and break it free so that it could close completely. The valve was
opened and closed several times until we felt that it had broken free, and was closable.
The valve was put into the closed position, WId another dive was done, to determine if the
flow had stopped. There was no perceivable flow going or coming from the pipeline. We
were then asked ifwe could go into the pipeline and check the valve, to make sure it had
closed completely. This was considered not feasible for diver safety reasons. There was
no way to determine if the valve in question was under differential pressures[(this is one of
the leading causes offata! accidents in the commercial dive industry) see ADC video
included in the correspondence]. Everyone on site agreed that it was likely that there was
a 90 degree turn in'the pipe between the entry point and the valve in question, and this
posed another potential diver hazard.
Eric Crews
DiverlInspector
Atlantic Construction and MbJ:ine Services
all.l1.@~9.!'.~
ZEL ENGINEERS, INC.
ATTN.: C.D. Drown, P.E.
435 Telfair Street
Augusta, Georgia 30901
. .
flarullJ J. Walker, Presiuent I
R~berl K. Beck. Vice President Operali lIS
Rho(.lua Juhnson, Adminislrative Assisl I
William C. Dubbing. Projecl Manager
cc Wmle D. Woodring. PrtljeCl Manager I
Arthur D. Harper, Project Manager
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November 13, 2000
Re:
WATER TREATMENT PLANT CLEARWELL BAFFLING, VALVES, &
CHEMICAL FEED MODIFICATIONS, AUGUSTA UTILITIES
DEPARTMENT
Dear Mr. Drown,
Per your request we quote the additional repair of the vertical expansion joints in
Clearwell #5 for the lump sum of One Thousand, Eight Hundred Eighty-one
Dollars [ $ 1,881.00 J exactly. This repair involved the repair of 28 lineal feet of
expansion joint and approximately 4 feet of horizontal crack. All work was
completed using the materials and procedure (i.e., GACO-FLEX) previously
approved for the base contract.
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Please address any concerns with the undersigned. Thank you for this
opportunity.
Sincerely,
aquaSouth CONSTRUCTION, INC.
I>
P.O. Box 747. 124 Eason Drive. Pooler, Georgia 31322
Tel. (912) 965-1250 . Fax (912) 965-1044
Email: H20south@bellsouth.nel.Augusta.GA (706) 650-0124
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MEMORANDUM
TO: WALTER S. HORNSBY, INTERIM COUNTY ADMINISTRATOR
FROM: N. MAX HICKS, DIRECTOR, AUGUSTA UTILITIES
SUBJECT: W-1 CLEARWELL BAFFLING & CHEMICAL FEED REPLACEMENT PROJECT
DATE: 01/11/01
CC: FILE
Please find attached Change Order #9 for the above referenced project. The ch,mge order
consists of the following Clearwell #5 repair items at the Highland Avenue \X1ater Treatment Plant:
· Underwater investigation of the status of valve 5-3 by a certified diver
$1,590.00
· Removal of the exterior brick veneer @ ClearweU # 5
$ 953.00
· Repair of the vertical joints @ ClearweU #5
$1,881.00
· Replacement of the exterior brick veneer @ ClearweU #5
$1,144.00
Valve 5-3 did not close sufficiently to empty the water from Clearwell #5. The diver investigated
the status of the valve while the clearwell was still full. The removal of the ex"telior brick, vertical
crack repairs, and replacement of the brick veneer was a result of the airplane impacting the side
of the clearwell. The total cost for the change order is $5,568.00.
JAM 1 2 2001
...1ft1.....AoRIC"MONO COlJNTY
~OR'8 C{:f'ItE