HomeMy WebLinkAbout05/21/1991, C-7 - WASTEWATER MANAGEMENT PLAN IMPLEMENTATION - UNIT 4 WASTEWATER TREATMENT PLANT IMPROVEMENTS - PLANS AND SPECIFICATIONS APPROVAL. I�Iry�I�IIII�III�IIIII II MEETING DATE:
city
of San SUIS OB1Sp0 May 21, 1991
COUNCIL AGENDA REPORT TEM NUMBER: -/J
FROM: William T. Hetland Prepared By: John E. Moss
Utilities Director Wastewater Division Manage
SUBJECT:
Wastewater Management Plan Implementation - Unit 4
Wastewater Treatment Plant Improvements - Plans and
Specifications Approval.
CAO RECOMMENDATION:
By motion, approve plans and specifications for the Unit 4
Wastewater Treatment Plant Improvements Project and
authorize staff to solicit bids.
DISCUSSION:
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Background:
On October 28, 1986, the City retained Brown and Caldwell
Engineers to prepare the Wastewater Management Plan (WWMP) .
The purpose of the plan was to identify needed improvements
to the City's wastewater treatment and collection facilities
to meet all discharge requirements and treat expected future
flows to the year 2015.
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Implementation of the WWMP to date has included activities
related to planning, research, design and funding, as well
as the advertisement and award of the Phase 1 Collection
System Improvements and the Unit 3 Wastewater Treatment
Plant Improvements. The City has worked closely with the
State Division of Loans and Grants (SDLG) in order to obtain
low interest loan funding for the needed projects. On May
17, 1990 the State Water Resources Control Board approved
loan funding of the City's projects in the amount of $35
million.
Plans and specifications for Unit 4 Wastewater Treatment
Plant Improvements project were completed in December 1990
and submitted to the State Division of Loans and Grants for
comment, review and approval. The SDLG has subsequently
completed their review of the plans and specifications and
staff is now ready to advertise this project for bids.
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ilvi1llllllllllCIty of San Luis OBISpo
9WENNO '"
amom COUNCIL AGENDA REPORT
Wastewater Mancagement Plan implententation
Unit 4 WWTP Improvements
May 21, 1991
Unit 4 Wastewater Treatment Plant Improvements project
consists of those modifications and additions to the City's
treatment facility necessary to meet the receiving water
requirements identified in the City's National Pollutant
Discharge Elimination System (NPDES) permit. This includes
processes for effluent filtration, cooling, disinfection,
dechlorination, color and turbidity control. In addition,
this project includes a process for hydrogen sulfide control
in the anaerobic sludge digestion process as required by the
San Luis Obispo County Air Pollution Control District
(APCD) , a new administration and laboratory building, and a
pipeline for transmission of the effluent from the new
facilities to the existing outfall location.
The plans and specifications for unit #4 will be undergoing
a state required value engineering analysis. This is an
independent engineering check to confirm that the project is
the most cost efficient design. This check became required
after the final cost estimate exceeded $10. 0 million. This
is being done concurrently with the plans and specification
approval in order to meet the strict time frame of the
consent degree. Any resulting changes will be handled as a
project change order.
Consequences of Not Taking the Recommended Action:
The city has entered into a Consent Decree with the State
Regional Water Quality Control Board. The Consent Decree is
a court documented agreement between the City and the State
for achieving compliance with the discharge requirements in
the City's NPDES permit. The Consent Decree includes a
schedule of key activities or milestones necessary to
achieve full compliance. Under the Consent Decree the City
was required to approve plans and specifications for Unit 4
by April 16, 1991, and to advertise this project no later
than May 17, 1991. The City was not able to comply with
these deadlines due to the lengthy review time of the State
Water. Resources Control Board. However, prompt action on
the City's part is now required to get us back on track.
Approval of the plans and specifications will allow us to
j again achieve compliance with the next deadline of the
consent decree, i.e. receipt of bids by August 29, 1991.
Continued failure to meet the dates specified in the
compliance schedule of the Consent Decree could result in
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fines from the State.
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I�iiifiVlNllll110 ��illli MY Of San --AIS OBISPO
GiS COUNCIL AGENDA REPORT
Unit 4 WWTP Improvements
May 21, 1991
Conclusion:
In order to obtain full compliance with the discharge
requirements in the City's NPDES permit and to meet the
compliance schedule in the Consent Decree, the City must
proceed with each step of the improvements projects in a
timely manner. The authorization of staff to advertise for
bids is the next step in the process of achieving full
compliance and is therefore recommended at this time.
FISCAL IMPACT:
The City is seeking and has obtained concept approval for
State low interest loan funding of the needed improvements.
Based on the cost projections and a 3 .5 percent interest
rate loan from the State, Council, on June 12, 1990, adopted
Resolution No. 6824 approving rate increases of $2.00 per
month each year over a four year period for a single family
residence and a financing plan/revenue program sufficient to
cover the debt service expense of the projects. Funding for
these projects has been approved and is identified in the
1989-91 Financial Plan and Approved 1989-90 Budget, Page E-
17.
In the review of the plans and specifications the State has
identified certain components of the construction which are
not eligible for loan funding. The components and their
associated cost estimate found ineligible for funding are as
i follows:
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UNIT 4 IMPROVEMENTS-
Landscaping not required for screening
facilities from public view . . . . . . . . . . . . . . . . $10, 000
The total engineer's estimate for the project is identified
below.
Engineer's Estimate:
Unit 4 Improvements Construction. . . . . . . . . . . . . . . $11,546,748
Contingency @ 2% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 230,935
Adjustment to Mid-Point of Construction . $ 913 ,948
TOTAL ENGINEERS ESTIMATE . . . . . . . . . . . . . . . . . $12 , 691, 631
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n��►��►iilililU�' ';'�;d city of San Luis OBISpo
COUNCIL AGENDA REPORT-
. Management Plan liaptemeritation
Unit 4 WWTP Improvements
May 21, 1991
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A detailed breakdown of the project cost has been taken from the
most recent cost projections for this project, and is included in
attachment 1.
ALTERNATIVES:
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There are no legitimate alternatives to the recommended
i action.
RECOMMENDATION:
By Motion, approve plans and specifications for Unit 4
Wastewater Treatment Plant Improvements and authorize
solicitation of bids.
Attachments:
Project cost summary
Plans and Specifications - A copy of the plans and
specifications for the project is available in the Council
office for review.
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Wastewater Management Plan Implementation
Unit 4 WWTP Improvements
May 21, 1991
ATTACHMENT 1
AM AND CALDWr3.L. Ci 9JLTANTS. CuNSTR E77ON MANAGEMENT DIVISION Page: 1
f+++ ESTIMATE SUMMARY SHEET s+rw
ESTIMATE is 511718B
Propect: SAN LUIS DEISM JOB 1: FINAL ESTIMAre
UNIT 4 W.W.T.P. EST DATE: 3-26-91
MADE BY: JIM MICHEAL PRT WE: 4-19-91
CHND BY: PRT TIME: 7:30 an
SUMMARY TOTALS MARKUP DATA
Gabor: t 3.296.186 Sales Tax: s 231.078 Labor M/U: 20.00% Sales Tax (Nat'l): 6.50%
Material: 4 3,555.048 Markuo: 6 11597,012 haterial M/U: 15.00% Sales Tax (Eouic): .00%
Subs: 1 2.168,007 Subtotai: $11,376.106 Subs M/U: 15,00% Bond Rate: 1.50%
Eouioent: 1 508.774 Bona: $ 170.642 Eauiommt M/U: 15.004 Gross Sales Tax: .00%
Revised Subtotal: 111,546.748
Gross Sales Tax: f
Grand Total: $11,546,748
(-Labor-1 Material Sub Ecuionent Sales
IRP# Process Area A/C Hrs Aeount(S) Asount(1) Aoount($) Asount($) Tax($) Markuo($) Total(i) Job]
s- --�amzs■aoa�c�r- -- _--- - --
%0 CONTRACTOR INDIRECTS 10.321 287.614 416 209.750 62,100 27 98„363 658.268 8
015 YARD DEVELOPMENT 362 10.725 14.544 466.718 300 946 74,377 5679610 5.0
036 FLON EWALIIATIOR 12.239 399.106 377.039 2,304 77,075 24,505 148.265 1,028,318 9.0
)37 NITRIFIED DIVERSION BOX 656 20.535 14.541 3,348 948 6,790 46,160 .4
038 SPIRAL ENERGY DISSIPATOR 600 19.626 10.082 195 2.868 659 5,897 39,323 .3
096 CHLORINE CONTACT TANK 81052 254.915 281.759 20,000 32.115 18.316 101,062 708.164 6.2
153 ;%%EER BASIN 20.954 671.771 1,060.651 255.707 68.980 68,937 3'42,153 2.468.196 21.7
172 YARD PIPING 14.250 506.057 478.859 15,346 119.548 31,126 193'.672 1,346.605 11.6
N75 MCC 'J' BLDL 412 13.332 119897 144967 24115 771 7.014 50,093 .4
176 r7.ECTRICAL / INSTRUMENTS 4,502 176.937 274.943 622.155 1.288 17,874 170,143 1,263.340 11.1
200 ADMINISTRATION BUILDING 3.002 103.070 124,490 310,322 11,815 8.093 87,605 645,393 5.7
r04 OPERATIONS BUILDING 1.790 58.554 33,266 1330,197 1,632 2.161 336,471 262.276 2.3
122E PIPELINE 9.462 330.165 286.346 86,758 107.614 18,613 138.141 967,637 8.5
P22 OVERFLOW BOX 1.153 37.177 43.085 30.465 3.525 2.802 18.995 136.047 1.2
'23 OUTFALL STRUCTURE 230 7,476 7,951 16.116 1,567 518 5,343 38.986 .3
390 INLET CHANNEL 70 2.120 2.860 154 186 876 6.1% .1
X50 COOLING TOWER 41382 138,616 292,534 600 7,511 19.017 72,818 531,092 4.7
451 r(YPOCHLORIirIB15ULFITE 2.100 71,673 199,135 5,298 4,2.;18 12.943 45.639 338,950 3.0
453 FERROUS MORIN 372 12.480 40,656 1,114 953 2.642 8.892 66,680 .6
Estimate Subtotal: 99.043 $ 3.296,186 s 3.555.04a $ 2.188.007 t 508.774 231078 1,597,012 511,376.106 100.0
Plus Bona, If Reap: s 170.642 1.5
Revised Subtotal: 111.546,748 5
Plus Gross Sales Tax, If-Read; s .0
GRAND TOTALs $11,546,748
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IBASE ESTIMATE SUMMARY
CITY OF SAN LUIS OBISPO
1UNIT 4
1 WASTEWATER TREATMENT PLANT
l IMPROVEMENTS
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1. Base Estimate Summary Sheet Total = $11, 5461748
� 2 . Construction Cost Contingency:
I a. Plot Plans 0%
b. P&ID' s 0%
C. Site Conditions 0%
d. Major Equipment Pricing 1%
e. Layout Details 0%
f. Unlisted Items 0%
g. Labor Resources 0%
h. Pricing Techniques 1%
i. Schedule Compression 0%
Total Contingency 2.0% $ 230, 935
2 . Adjustment to mid-point of
construction from estimate
criteria, (item 9) (August 1992) 7 .76% S 913 , 948 _
17 months.
Anticipated Base Estimate Bid Price $ 12 , 691, 631