HomeMy WebLinkAbout03-21-19 EO&WR Committee PacketOTAY WATER DISTRICT
ENGINEERING, OPERATIONS & WATER RESOURCES COMMITTEE MEETING
and
SPECIAL MEETING OF THE BOARD OF DIRECTORS
2554 SWEETWATER SPRINGS BOULEVARD
SPRING VALLEY, CALIFORNIA
Board Room
THURSDAY
March 21, 2019
12:00 P.M.
This is a District Committee meeting. This meeting is being posted as a special meeting
in order to comply with the Brown Act (Government Code Section §54954.2) in the event that
a quorum of the Board is present. Items will be deliberated, however, no formal board actions
will be taken at this meeting. The committee makes recommendations
to the full board for its consideration and formal action.
AGENDA
1. ROLL CALL
2. PUBLIC PARTICIPATION – OPPORTUNITY FOR MEMBERS OF THE PUBLIC TO
SPEAK TO THE BOARD ON ANY SUBJECT MATTER WITHIN THE BOARD'S JU-
RISDICTION BUT NOT AN ITEM ON TODAY'S AGENDA
DISCUSSION ITEMS
3. APPROVE CHANGE ORDER NO. 3 TO THE EXISTING CONSTRUCTION CON-
TRACT WITH PACIFIC HYDROTECH CORPORATION IN THE AMOUNT OF
$64,864 FOR THE 870-2 PUMP STATION REPLACEMENT PROJECT (MARTIN)
[5 minutes]
4. AWARD A CONTRACT TO LAYFIELD USA FOR THE MAINTENANCE OF THE
FLOATING COVERS ON FOUR (4) POTABLE AND TWO (2) RECYCLED WATER
RESERVOIRS FOR AN AMOUNT NOT-TO-EXCEED $169,805 FOR FISCAL YEAR
2020; WITH FOUR (4) ONE-YEAR OPTIONS FOR RENEWAL AT THE GENERAL
MANAGER’S DISCRETION (VACLAVEK) [5 minutes]
5. ADJOURNMENT
BOARD MEMBERS ATTENDING:
Tim Smith, Chair
Gary Croucher
2
All items appearing on this agenda, whether or not expressly listed for action, may be delib-
erated and may be subject to action by the Board.
The Agenda, and any attachments containing written information, are available at the Dis-
trict’s website at www.otaywater.gov. Written changes to any items to be considered at the
open meeting, or to any attachments, will be posted on the District’s website. Copies of the
Agenda and all attachments are also available through the District Secretary by contacting
her at (619) 670-2280.
If you have any disability that would require accommodation in order to enable you to partici-
pate in this meeting, please call the District Secretary at 670-2280 at least 24 hours prior to
the meeting.
Certification of Posting
I certify that on March 15, 2019 I posted a copy of the foregoing agenda near the regu-
lar meeting place of the Board of Directors of Otay Water District, said time being at least 24
hours in advance of the meeting of the Board of Directors (Government Code Section
§54954.2).
Executed at Spring Valley, California on March 15, 2019.
/s/ Susan Cruz, District Secretary
STAFF REPORT
TYPE MEETING: Regular Board
MEETING DATE: April 3, 2019
SUBMITTED BY:
Dan Martin
Assistant Chief of
Engineering
PROJECT: P2083-001103
P2562-001103
DIV. NO. 2
APPROVED BY:
Rod Posada, Chief, Engineering
Mark Watton, General Manager
SUBJECT: Approval of Change Order No. 3 to the Construction Contract
with Pacific Hydrotech Corporation for the 870-2 Pump Station
Replacement Project
GENERAL MANAGER’S RECOMMENDATION:
That the Otay Water District (District) Board of Directors (Board)
approve Change Order No. 3 to the existing construction contract with
Pacific Hydrotech Corporation (Pacific Hydrotech) in the amount of
$64,864.00 for the 870-2 Pump Station Replacement Project (see
Exhibits A and B for Project location).
COMMITTEE ACTION:
Please see Attachment A.
PURPOSE:
To obtain Board authorization for the General Manager to execute
Change Order No. 3 in the amount of $64,864.00 to the construction
contract with Pacific Hydrotech for the 870-2 Pump Station
Replacement Project.
2
ANALYSIS:
The District’s existing High Head (870-1) and Low Head (571-1) Pump
Stations constructed in 1962 and 1966, respectively, have reached the
end of their useful lives. The 870-2 Pump Station Project will
replace these facilities and includes replacement of existing
Reservoir inlet/outlet piping, construction of recirculation system
pumps, and a chloramine disinfection booster system. Improvements of
the access road and the installation of utilities for electrical,
gas, sewer, and communication services are also included.
The 870-2 Pump Station Replacement Project also includes the
replacement of the 571-1 Reservoir (36.7 MG) floating cover and
liner. The 571-1 Reservoir was originally built in 1967. In 1993
the District retrofitted the existing Reservoir to install a
reservoir liner and floating cover. The existing liner and floating
cover were more than 24 years old and nearing the end of their useful
life. As part of the overall Project, the existing Reservoir outlet
stub-out piping located beneath the Reservoir will be replaced, which
will allow the new 870-2 Pump Station to simultaneously perform its
primary function (pump from the 571-1 Reservoir to the 870-1
Reservoir), recirculate the 571-1 Reservoir, and also achieve a
future function (pump from the 571-1 Reservoir to the 624 Pressure
Zone). The replacement of the cover and liner under this Project
mitigates having to take this critical Reservoir out of service a
second time within the next few years.
The demolition of the Low Head and High Head Pump Stations will be
completed at a later date (not part of this Project) when the new
870-2 Pump Station has been brought on line and completed its
warranty period.
At the July 5, 2017 Board Meeting, the Board awarded a construction
contract in the amount of $16,925,900.00 to Pacific Hydrotech. Since
the award of the construction contract, there have been two (2)
change orders approved under the authority granted to the General
Manager.
Change Order No. 1, which totaled $26,269.83, compensated the
contractor for changes associated with the 571-1 Reservoir cover and
liner improvements. These changes included provisions for additional
cover buoyancy floats; replacement of existing unsalvageable batten
bar anchor bolts; contractor reservoir disinfection in lieu of
contract specified District disinfection; weather related days; and
an adjustment to the contract milestone date for the 571-1 Reservoir.
In total, Change Order No. 1 added 27 days to the contract.
3
Change Order No. 2, which totaled $48,698.12, compensated the
contractor for changes including the following: modifications to the
new electric meter room to accommodate San Diego Gas & Electric
accessibility requirements; modifications to provide two (2) 250-
gallon aqueous ammonia tanks in lieu of one (1) 550-gallon tank to
better serve station operations; provisions for two (2) 30-inch
magnetic flow meters in lieu of ultrasonic flow meters to provide
more resiliency and flexibility with anticipated flow conditions; and
repairs to an existing rectifier electrical conduit adjacent to the
access road. Change Order No. 2 also addressed contract time
including weather days. In total, Change Order No. 2 added 16 days
to the contract.
Change Order No. 3, which is the subject of this staff report,
provides for the following ten (10) items as detailed in the attached
Exhibit C:
1. Implementing the necessary finish plumbing modifications and
bathroom fixtures to complete the station’s bathroom.
2. Modifications to the dimensions of the backup generator
concrete foundation pad to accommodate the anchor bolt edge
distances and vibration isolator mounting plates.
3. Addition of structural support members to adequately support
the heating, ventilation, and air-conditioning (HVAC) equipment
and emergency generator muffler.
4. Revisions to the stations louvers and associated masonry to
reduce noise from the exterior pump engines from entering the
building’s pump room.
5. Installation of door louvers for the compressor room doors to
mitigate negative pressure.
6. Increasing the 16-inch discharge piping on the 570 zone
(recirculation) pumps to 18-inches to reduce anticipated pipe
velocities and minimize resultant pipe system vibration.
7. Revisions to provide a sewn protective thermal insulation
jacket with clips in lieu of the specified thermal insulation
system for the emergency generator muffler and exhaust piping
to facilitate removal and reinstallation during maintenance.
8. Modifying the emergency generator exhaust roof penetration to
simplify future muffler removal/servicing and increasing roof
flashing performance and reliability.
9. Consolidation of exterior lighting controls in a new contactor
and control panel.
10. Granting contract time in accordance with the contract due to
weather impacts.
In total, the cost associated with the items in Change Order No. 3 is
$64,864.00. Time impacts associated with this change are also
provided in Exhibit C. In total, the twenty five (25) additional
days added to the contract will result in a revised total contract
duration of 868 calendar days.
4
FISCAL IMPACT: Joe Beachem, Chief Financial Officer
The total budget for CIP P2083, as approved in the FY 2019 budget, is
$18,950,000.00. Total expenditures, plus outstanding commitments and
forecast, including this contract, are $18,948,691. See Attachment
B-1 for the budget detail.
The total budget for CIP P2562, as approved in the FY 2019 budget, is
$2,900,000.00. Total expenditures, plus outstanding commitments and
forecast, including this contract, are $2,899,446. See Attachment B-
2 for the budget detail.
Based on a review of the financial budget, the Project Manager
anticipates that the budgets are sufficient to support the Project.
The Finance Department has determined that, under the current rate
model, 100% of the funding will be available from the Replacement
Fund for CIP P2083 and for CIP P2562.
STRATEGIC GOAL:
This Project supports the District’s Mission statement, “To provide
exceptional water and wastewater service to its customers, and to
manage District resources in a transparent and fiscally responsible
manner” and the District’s Vision, “To be a model water agency by
providing stellar service, achieving measurable results, and
continuously improving operational practices.”
LEGAL IMPACT:
None.
DM:jf
P:\WORKING\CIP P2083 870-2 Pump Station Replacement\Staff Reports\BD 04-03-19\BD 04-03-19 Staff Report CO No. 3 for
870-2 PS.docx
Attachments: Attachment A – Committee Action
Attachment B1 – P2083 Budget Detail
Attachment B2 - P2562 Budget Detail
Exhibit A – 870-2 Pump Station Project Location
Exhibit B - 870-2 Pump Station Project Detail Map
Exhibit C – Change Order No. 3
ATTACHMENT A
SUBJECT/PROJECT:
P2083-001103
P2562-001103
Approval of Change Order No. 3 to the Construction Contract
with Pacific Hydrotech Corporation for the 870-2 Pump
Station and the 571-1 Reservoir Floating Cover and Liner
Replacement Projects
COMMITTEE ACTION:
The Engineering, Operations, and Water Resources Committee
(Committee) reviewed this item at a meeting held on March 21, 2019.
The Committee supported Staff's recommendation.
NOTE:
The “Committee Action” is written in anticipation of the Committee
moving the item forward for Board approval. This report will be sent
to the Board as a Committee approved item, or modified to reflect any
discussion or changes as directed from the Committee prior to
presentation to the full Board.
ATTACHMENT B-1 – P2083 Budget Detail
SUBJECT/PROJECT:
P2083-001103
P2562-001103
Approval of Change Order No. 3 to the Construction Contract
with Pacific Hydrotech Corporation for the 870-2 Pump
Station and the 571-1 Reservoir Floating Cover and Liner
Replacement Projects
Date: 3/04/19
Budget 18,950,000
Planning
Consultant Contracts 48,000 34,948 13,052 48,000 HELIX ENVIRONMNTL PLANNING INC
17,094 17,094 - 17,094 JONES & STOKES ASSOCIATES INC
210,674 210,674 - 210,674 ICF JONES & STOKES INC
Regulatory Agency Fees 2,109 2,109 - 2,109 CA DEPT OF FISH & WILDLIFE
720 720 - 720 CALIFORNIA REGIONAL WATER
1,570 1,570 - 1,570 SAN DIEGO COUNTY WATER AUTH
1,760 1,760 - 1,760 STATE WATER RESOURCES
Service Contracts 2,260 2,260 - 2,260 COUNTY OF SAN DIEGO
164 164 - 164 SAN DIEGO DAILY TRANSCRIPT
505 505 - 505 THE SAN DIEGO UNION-TRIBUNE
Standard Salaries 200,000 181,855 18,145 200,000
Fixed Asset 580,444 580,444 - 580,444
Total Planning 1,065,301 1,034,104 31,197 1,065,301
Design 001102
Consultant Contracts 136 136 - 136 THE WATCHLIGHT CORPORATION
4,850 4,850 - 4,850 BURKETT & WONG ENGINEERS INC
14,068 14,068 - 14,068 SOUTHERN CALIFORNIA SOIL
3,034 3,034 - 3,034 RICK ENGINEERING COMPANY
4,625 4,625 - 4,625 ROGER B WOODHULL
22,149 22,149 - 22,149 NINYO & MOORE GEOTECHNICAL AND
10,484 10,484 - 10,484 HUNSAKER & ASSOCIATES
6,086 6,086 - 6,086 HDR ENGINEERING INC
682,870 682,870 - 682,870 CAROLLO ENGINEERS INC
7,974 7,974 - 7,974 AEGIS ENGINEERING MGMT INC
Regulatory Agency Fees 3,694 3,694 - 3,694 SAN DIEGO GAS & ELECTRIC
16,511 16,511 - 16,511 COUNTY OF SAN DIEGO
Service Contracts 98 98 - 98 DAILY JOURNAL CORPORATION
Standard Salaries 677,054 677,054 - 677,054
Supplier Contracts 5,350 5,350 - 5,350 INLAND AERIAL SURVEYS INC
Total Design 1,458,983 1,458,983 - 1,458,983
Construction
Construction Contracts - - -
13,735,098 6,874,466 6,860,632 13,735,098 PACIFIC HYDROTECH CORPORATION
64,864 - 64,864 64,864 Pacific Hydrotech Co. CO No. 3
722,900 364,249 358,651 722,900 PACIFIC WESTERN BANK
Consultant Contracts 417,983 329,281 88,702 417,983 CAROLLO ENGINEERS INC
1,319 1,319 - 1,319 NINYO & MOORE GEOTECHNICAL AND
17,623 17,623 - 17,623 RBF CONSULTING
780,772 447,366 333,407 780,772 MICHAEL BAKER INT'L INC
438 438 - 438 NINYO & MOORE GEOTECHNICAL
OTHER AGENCY FEES 3,334 3,334 - 3,334 COUNTY OF SAN DIEGO
164,774 164,774 - 164,774 SAN DIEGO GAS & ELECTRIC
Professional Legal Fees 276 276 - 276 ARTIANO SHINOFF
280 280 - 280 STUTZ ARTIANO SHINOFF
Service Contracts 3,628 3,628 - 3,628 MAYER REPROGRAPHICS INC
119 119 - 119 SAN DIEGO DAILY TRANSCRIPT
Standard Salaries 210,000 135,500 74,500 210,000
20,000 - 20,000 20,000 Security System
30,000 - 30,000 30,000 County Access Road Inspection
126,000 - 126,000 126,000 Environmental Offsite Mitigation
10,000 - 10,000 10,000 AT&T Connection
Contingency 115,000 - 115,000 115,000 0.8% of Construction Contract
Total Construction 16,424,407 8,342,651 8,081,756 16,424,407
Grand Total 18,948,691 10,835,737 8,112,953 18,948,691
Vendor/Comments
Otay Water District
p2083-PS -870-2 Pump Station
Committed Expenditures
Outstanding
Commitment &
Forecast
Projected Final
Cost
ATTACHMENT B-2 – P2562 Budget Detail
SUBJECT/PROJECT:
P2083-001103
P2562-001103
Approval of Change Order No. 3 to the Construction Contract
with Pacific Hydrotech Corporation for the 870-2 Pump
Station and the 571-1 Reservoir Floating Cover and Liner
Replacement Projects
Date: 3/4/2019
Budget
2,900,000
Planning
Regulatory Agency Fees 50 50 - 50 PETTY CASH CUSTODIAN
Total Planning 50 50 - 50
Design 001102
Standard Salaries 51,320 51,320 - 51,320
Total Design 51,320 51,320 - 51,320
Construction
Standard Salaries 30,000 15,916 14,084 30,000
150,000 129,300 20,700 150,000 MICHAEL BAKER INT'L INC
2,415,726 2,384,358 31,368 2,415,726 PACIFIC HYDROTECH CORPORATION
127,143 125,493 1,651 127,143 PACIFIC WESTERN BANK
206 206 - 206 CLARKSON LAB & SUPPLY
125,000 - 125,000 125,000 Project Contingency 4.9%
Total Construction 2,848,076 2,655,273 192,803 2,848,076
Grand Total 2,899,446 2,706,643 192,803 2,899,446
Vendor/Comments
Otay Water District
p2562-Res - 571-1 Reservoir Cover/Liner Replac
Committed Expenditures
Outstanding
Commitment &
Forecast
Projected Final
Cost
OTAY WATER DISTRICT870-2 PUMP STATIONLOCATION MAP
EXHIBIT A
CIP P2083F
P:\WORKING\CIP P2083 870-2 Pump Station Replacement\Graphics\Exhibits-Figures\Exhibit A, Location Map, May 2016.mxd
ROLLRESERVOIR(571-1)
LOW HEADPUMP STATION
HIGH HEADPUMPSTATION
FOR PROJECT DETAILSEE EXHIBIT B
ACCESS FROMALTA RD
OWD PROPERTY LINE(APPROX)
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VICINITY MAP
PROJECT SITE
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DIV 2
DIV 4
DIV 3
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OTAY WATER DISTRICT870-2 PUMP STATIONPROJECT DETAIL MAP
EXHIBIT B
CIP P2083F
P:\WORKING\CIP P2083 870-2 Pump Station Replacement\Graphics\Exhibits-Figures\Exhibit B, Project Detail Map, May 2016.mxd
0 10050
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Legend
ExistingEasementOWD
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ExistingEasementSDGE
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ExistingWaterOWD
Contract / P.O. Change Order No. 3 page 2 of 3
Description of Work
Description
Increase Decrease Time
Item No. 1:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
provides for modifications to Room P104 (Closet Room) per RFP 002.
$5,980.00 2
Item No. 2:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
provides for modifications to the backup generator concrete foundation pad
per COR 018.
$7,038.00 1
Item No. 3:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
provides additional HVAC and muffler support structural members per COR
019.
$11,642.00 3
Item No. 4:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
provides for louver and pilaster modifications per RFP 009.
$7,007.00 3
Item No. 5:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
provides door louvers to Room P104 (Air Compressor Room) per COR 27.
$778.00 0
Item No. 6:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
increases the 570-zone pump discharge pipe size to 18-inch per COR 28.
$9,777.00 0
Item No. 7:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
provides for modifications to the emergency generator thermal insulation
requirements per COR 030.
$12,060.00 1
Item No. 8:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
provides for modifications to the emergency generator exhaust roof
penetration per COR 033.
$4,534.00 0
Item No. 9:
Charges attributable to the 870-2 PS (CIP 2083). This Change Order
provides for modifications to exterior lighting controls per RFP 007A.
$6,048.00 3
Item No. 10:
Add twelve (12) calendar days due to weather impacts per Contract
Specifications 00700-8.5
$0.00 $0.00 12
Sub Total Amount $64,864.00 $0.00 25
Total Net Change Order Amount $64,864.00
Reason:
Item No. 1:
The Contract provided sewer and water connections to Room P104 for future conversion to a unisex bathroom. It was
determined to implement the conversion as part of construction operations. This Change Order is required to provide and
implement the necessary finish plumbing modifications and bathroom fixtures to change the purpose of the room from a closet
to a bathroom per RFP 002.
Contract / P.O. Change Order No. 3 page 3 of 3
Item No. 2:
The Contract included a 5-foot 6-inch by 16-foot 4-inch structural concrete foundation pad for the emergency generator.
Subsequent to submittal approval it was determined that a 10-foot by 22-foot structural concrete foundation pad was required to
support the generator and provide anchor bolt edge distances for the vibration isolator mounting plates. This change order
provides for the required structural concrete foundation pad size revision per COR 018.
Item No. 3:
During submittal review it was determined that additional structural support members were required to adequately support the
heating, ventilation and air-conditioning (HVAC) equipment and emergency generator muffler. This change order is required to
provide the additional support members per COR 019.
Item No. 4:
The Contract Documents provided seven louvers along the East wall of the pump room. During pump station layout it was
determined that relocation of the louvers from the East wall would substantially reduce the amount of noise from exterior pump
engines (located outside the East wall) from entering the pump room. The total square footage of louver did not materially
change and was implemented at no cost. Due to the 10-foot by 12-foot masonry opening required to accommodate a single
louver two additional pilasters were required to support the South pump room wall. This change order is required to implement
the changes per RFP 009.
Item No. 5:
The Contract Documents did not provide for exterior make-up air to compressor room (P104). During submittal review it was
determined that door louvers were required to mitigate the potential for generating negative pressure in the room during extended
compressor operating periods. This change order is required to install a one square foot louver in each compressor room door
per COR 027.
Item No. 6:
The Contract Documents included 16-inch discharge piping on the 570 zone (recirculation) pumps. During submittal review it
was determined to increase discharge pipe diameter to 18-inch thereby reducing anticipated velocities and minimizing resultant
pipe system vibration. This change order is required to implement the modification per COR 028.
Item No. 7:
The Contract Documents included unsewn protective thermal insulation wired to the emergency generator muffler and exhaust
piping. During submittal review it was determined that the project would benefit from a sewn and easily removable jacketed
insulation to facilitate future servicing while increasing longevity. It was determined to modify the requirements to include a
custom sewn insulation jacket with clips to facilitate maintenance removal while increasing service life. This change order is
required to implement the modification per COR 030.
Item No. 8:
The Contract Documents included a specialized detail to support the emergency generator exhaust roof penetration resulting in
a complex flashing and waterproofing condition. Additionally, based upon the generator exhaust layout an additional structural
support would have been required as support. Discussions revealed an alternate penetration method mitigating the flashing
complexity and need for an additional structural support member. It was determined to proceed with a thimble roof penetration
detail which will simplify future muffler removal for potential servicing and increase roof flashing performance and reliability. This
change order is required to implement the modification per COR 033.
Item No. 9:
During construction the designer issued revisions to the lighting control system in response to RFI 118 resulting in consolidation
of exterior lighting controls in a new contactor and control panel. This change order is required to implement the modification
per RFP 007A.
Item No. 10:
Contract Documents Section 00700-8.5 provides for no cost time extensions due to weather impacts on the project progress.
Weather impacted the project twelve (12) days between January 24, 2018 and February 28, 2019. The project was impacted
on February 1, 4, 5, 6, 7, 8, 14, 15, 19, 20, 21 and 22, 2019 due to weather.
870-2 Pump Station Replacement Project Project: P2083/P2562
Consultant/Contractor: Pacific Hydrotech Corporation Subproject: 001103
APPROVED
C.O.AMOUNT BY DATE DESCRIPTION TYPE C.O.
1 $26,269.83 GM 5/18/2018
Change order provides for additional buoyancey floats,
anchor bolts, and a modified disinfection procedure for the
571-1 Reservoir. Also addresses contract time for weather.
Contractor
2 $48,698.12 GM 1/29/2019
Electric service room modifications; ammonia storage
modifications; replace ultrasonic flow meters with magnetic
type; relocate existing rectifier power conduit; and weather
days
Contractor
3 $64,864.00 Board
Bathroom fixtures; backup generator concrete foundation
pad modifications; HVAC muffler support structural
members; louver and pilaster modifications; door louvers;
increase pump discharge pipe size to 18-inch; modify
emergency generator thermal insulation; emergency
generator exhaust roof penetration; esterior lighting controls
modifications; weather days.
Contractor
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Total C.O.'s To Date: $139,831.95 0.8%
Original Contract Amount:$16,925,900.00
Current Contract Amount:$17,065,731.95
Month Net C.O.$ Limit Authorization Absolute C.O.$ C.O. %
3/19 $64,864.00 $2,000 Insp $64,864.00 0.4%
$5,000 PM/Sr. Engr. 0.0%
$15,000 Asst. Chief 0.0%
$20,000 Chief 0.0%
$75,000 GM 0.0%
>$75,000 Board 0.0%
CHANGE ORDER LOG
P:\WORKING\CIP P2083 870-2 Pump Station Replacement\Staff Reports\BD 04-03-19\Backup\COLOG_1903041 3/4/2019
STAFF REPORT
TYPE MEETING: Regular Board
MEETING DATE: April 3, 2019
SUBMITTED BY:
Jake Vaclavek,
System Operations Manager
PROJECT: DIV. NO. 1, 2, 5
APPROVED BY:
Jose Martinez, Assistant Chief of Operations
Pedro Porras, Chief of Operations
Mark Watton, General Manager
SUBJECT: AWARD OF CONTRACT FOR RESERVOIR FLOATING COVER MAINTENANCE
GENERAL MANAGER’S RECOMMENDATION:
That the Board awards a contract to Layfield USA for the maintenance
of the floating covers on four potable and two recycled water
reservoirs for an amount not to exceed $169,805 for Fiscal Year 2020;
with four (4) one-year options for renewal at the General Manager’s
discretion.
COMMITTEE ACTION:
Please see attachment A.
PURPOSE:
To effectively maintain the District’s floating covers as required by
the State Water Resources Control Board (SWRCB) and as recommended by
the American Water Works Association (AWWA) guidelines.
ANALYSIS:
The SWRCB requires agencies that have potable water reservoirs with
floating covers to maintain them as per approved maintenance plans.
These plans are made using AWWA guidelines. The maintenance involves
2
cleaning of the entire cover, repairing minor holes and tears,
adjusting tensioning devices and maintaining the rainwater removal
system. The District has four potable reservoirs with covers that
need to be maintained twice a year. The District also has two
recycled reservoirs with floating covers that will be included in the
contract to be maintained once per year. The recycled reservoir
cover maintenance is not required by the SWRCB, but will be done as
an “Effective Management Practice” to help extend the useful life of
the covers.
Description of Reservoirs
Reservoir Name Type Surface Area* Capacity (MG)
571-1 Potable 195,000 36.7
624-1 Potable 110,000 12.0
711-3 Potable 157,000 16.0
870-1 Potable 97,000 10.9
927-1 Recycled 163,000 16.3
944-1 Recycled 102,000 12.0
*In square feet, approximate area at high water level.
Quotes were solicited via BidSync, the District’s online bid
solicitation website, and the Otay Water District’s website. Three
quotes were received on February 4, 2019 with the following results:
Contractor Total Amount
1. Layfield USA $169,805
Spring Valley, CA
2. Erosion Control Applications $173,910
Anaheim, CA
3. COMANCO Environmental $1,500,000
Plant City, FL
Layfield USA has cleaned and maintained the District’s floating
covers for the last 10 years. They also replaced the cover and liner
on the 624-1, 571-1, 927-1 and the 711-3 reservoirs. Layfield is an
industry leader in the design, installation and maintenance of
reservoir floating covers. District staff have found them to be
reliable, responsible, and an accommodating company.
Staff is recommending the award of this maintenance contract to
Layfield USA in the amount not-to-exceed $169,805 for one year,
beginning in Fiscal Year 2020; with four (4) one-year options for
3
renewal at the General Manager’s discretion. The maximum price
increase for the four option years would be based on the San Diego
Consumer Price Index for the previous year.
FISCAL IMPACT: Joe Beachem, Chief Financial Officer
The amount of $169,805 has been submitted for the Fiscal Year 2020
Budget for this contract to cover all work related to this
maintenance. Annual amount for contract renewal will be budgeted in
subsequent fiscal years.
STRATEGIC GOAL:
This contract helps maximize the District’s useful life of its
reservoir floating covers. Properly maintained covers also protect
the water quality within our District and helps keep the District in
regulatory compliance.
LEGAL IMPACT:
None.
Attachments: Attachment A – Committee Action
ATTACHMENT A
SUBJECT/PROJECT:
AWARD OF CONTRACT FOR RESERVOIR FLOATING COVER MAINTENANCE
COMMITTEE ACTION:
The Operations and Engineering Committee reviewed this item at a
meeting held on March 21, 2019 and the following comments were made:
NOTE:
The “Committee Action” is written in anticipation of the Committee
moving the item forward for board approval. This report will be sent
to the Board as a committee approved item, or modified to reflect any
discussion or changes as directed from the committee prior to
presentation to the full board.