Project 173 - Proposal - Hamers - 2004-05-23 ® ROBIN B HAMERS
234 E 17TH ST SUITE 205
& ASSOCIATES, INC. COSTA MESA. CA 92627
CIVIL ENGINEERS • PLANNERS • SURVEYORS (949) 546-1192
FAX 1948)546-6518
May 23 2004
Board of Directors
Costa Mesa Sanitary District
77 Fair Drive
Costa Mesa, CA 92626
Re: Proposal to begin Design Phase
Project#173 South Coast Plaza Pump Station Force Main Replacement
Dear Board of Directors:
The following is a proposal to complete the design phase of the above referenced capital
improvement project. Enclosed is the portion of the 2003-2004 capital improvement
program report that fully describes the project accompanied by a map showing the
existing force main. As described in the report, when the line ruptured on June 10, 2002,
the line was inspected in the area of repair and it was found that the line was deteriorating
to a point where it should be replaced.
The District s pump station and force main are located at the eastern edge of the south
parking structure. District Staff will be meeting with South Coast Plaza representatives
to insure the design and construction minimize impacts to the businesses located in the
plaza.
The Sanitary District has worked closely with the staff of C.J Segerstrom & Sons over
the years in a cooperative and professional manner and the relationship is mutually
beneficial and respectful. In addition to working with Segerstrom representatives with
regard to sewer lines and easements, Staff has also explained the new grease control
program and Segerstrom is already incorporating it into their plans.
It is proposed to complete the design phase of the project as outlined in the attached
2001-2004 CIP at.the hourly rates shown below not to exceed $15 000
Engineer $70 per hour
2 man survey crew 185 per hour
3 man survey crew 210 per hour
Sin erely
Rd1
bi B Hamers
t Printed on Recycled Pape
sAN ar qr
= y Costa Mesa Sanitary District
an InOepenOent Special District
Board of Directors
4r/i,n Schafer.
cre; ioads,de
James F)m111un REVIEW OF PROPOSED CAPITAL
4st Pam
Dan Worthington IMPROVEMENT PROJECTS
FISCAL YEAR 2003-2004
Phone
(714) '54-5043
Fax QRpFE pry
(7/4) 4 /436 r� ���8 Hq,1rq�Frn
PRJ C OI2V3 1720
c EXP 1
0 ^n'
!c `
Mailing 4ddress l
P 0 Bo 1'00 F�F CAt15>7
Costa A/esu, CA
92628-1'00
Prepared by
Robin B. Hamers
Street Address
7 Farr Drne
Costa Ale a cA Manager/District Engineer
9'626-6120
June17 2003
®r, <t Protecting our cw;u;uinit'g's()Mitt) 629 proviOing solid waste an) sewer co((ection services.
Rt.
C/<<JP,t, costmnesasanitary�district.org
/19\NI ra\
-'' Costa Mesa Sawttar . District
an InOepenOent Special District
Revised June 17 2003
Revised May 25 2003
April 2003
Board of Directors
4rlene Schale,.
Greg Roodcicl` PROPOSED BUDGET
James Fcrn'rnan
drr Fern COSTA MESA SANITARY DISTRICT
Dan Ikrtlungton
CAPITAL IMPROVEMENT PROGRAM
FISCAL YEAR 2003-2004
Phase PROJECT#149
(714) 7,4-5043
SINKING FUND FOR FUTURE SEWER REPLACEMENT $ 100 000 (CR)
Fax PROJECT#159 TELEVISING SEWER LINES 18,000 (CR)
(714) 43? 14'6
PROJECT#164
MISCELLANEOUS SEWER WORK d. MANHOLE ADJUSTMENT 90,000 (CR)
PROJECT#172
WASTE DISCHARGE REQUIREMENTS (WDR) PART I 250,000 (CR)
Mailing 4 ddress
P 0 Boy 1200 PROJECT#171
Costa Mesa, C4 SOUTH COAST PLAZA PUMP STATION FORCE MAIN REPLACEMENT 190,000 (CR)
9'6_8-1?00
TOTAL $ 648.000 (CR)
(CR) Denotes Capital Replacement Project
(CI) Denotes Capital Improvement Project
Street 4ddress (D) Denotes Design Phase only at this time
77 Fain Uri,e
(0) Denotes Other
Costa Meta, CA
9'626-65?0
cc. Rob Hamers
Tom Fauth
Joan Revak
Marc Puckett
Protecting our conn,antit J's health h29 providing soli) waste ono serer collection services.
costmnesasanitarndistrict.org
Project#173 South Coast Plaza Pump Station Force Main Replacement
On Sunday June 30, 2002, the pressurized sewer line (force main) from the pump station
ruptured and required emergency repair The force main showed signs of deterioration as the
thickness of the pipe wall had thinned and a crack allowed the water to exit the pipe. The repair
had to be accomplished by hand digging because the break was located under a storm drain line.
The District uses a three part test to determine whether a force main is ready for rehabilitation or
replacement. The three parts are the age of the force main, whether there has been a break in the
line, and the structural stability of the pipe. A break is very revealing as it allows inspection of
the inside and outside pipe wall and the effect of the soil on the pipe. In the case of the South
Coast Plaza force main, the pipe wall was very thin, implying additional breaks may occur
Force main rehabilitation and replacement was identified in the 2002 Sewer Master Plan Update
as an on-going program to insure the reliability of the sewer system as a whole. A table is
included with the date of installation, the pipe material, and the date at which the pipeline is 30
and 50 years old. The life expectancy of a force main is less than a gravity sewer because the
water in a force main is under pressure and exerts a force on the pipe during pump operation.
During Project#168-Canyon Pump Station force main, the District found a lack of contractors
able to install a structural lining inside an 8 inch pressure line. Therefore, Staff of the District
met with South Coast Plaza officials to determine the proposed alignment of th replacement
force main. The existing alignment runs through a portion of the South parking structure and
then in the drive area where there are many utilities. A continued alignment through the parking
structure may allow unencumbered construction with a minimum of hand digging and protection
of existing utilities. The final alignment will be determined during the design phase of the
project.
PROPOSED BUDGET
Design $ 15,000
Construction 145,000
Inspection 15,000
Contingency 15,000
Total $ 190,000
r
0
P OF OvEPU<u0 I 1I
— Vii�. _ 1
R ..0 T--- - SA J�_y 11
$ • /� al t 1 ill
N / •
$ / --- IO s eal S
I 4r 1
A 4 1-tic 0
0 -a •4, ICI r II
0i = 1
—4 " Ill
. '
4 )
13 i
1z7, m . � ,
204 85' \ i c 2 i' A h
G1 (4 `I 4 0.I (�PEOEJ,b..v 8 c6E
'0 (y� V V �, _�_
I`'s —003 .._ _
JO.
o T - ::
A IN��L.I■ I ';-,4 N
u I
EOESTPUA ' Iy. I 1.) ^
rrl - 166E
e u
a
y i aT kit m
n% R ^� NE^n♦T .."vI A ECE0 oWL
i Z 1 �C ^O iN EMIP(COVE
R� I ♦z x$4731 i�� `fin° � I I 1 'f I FACE 00.0F
P LIOII
-- - . . . 1 J° a.. a p`7�7��M e I P,.*�"-',d/2Pi(i I i au 4774)4*
III
?). 2 rwEP33'03'w 4A lz' 1 - 003
0 04
lJ i� 2...i V�
zt
73 0 l •' ' • _ .�+ N -A '� I stpl "I cmt1�8kt r,.a_ ) 0 34
L i Aani 8 :� _° e ° iEea ` o °$I � in �:,. 8 / 0c3
- k ^NCA A A• ok II
O t. A pC 'CAI fi ”a Oi A y A
iMs is 0F + � �JP � A Y / I/�� o IIIIlJl1—�o:i
1 {' I 4.
TTI � N i ��/ G - - fpm�t
- ' rn > ,,� a. `- °=� _-_
• ,76YM- Ct(u2V/
6
no' \ / //