HomeMy WebLinkAboutEngineering & Operations MINUTES 09-03-19 Page 2 of 7
CENTRAL SAN
CONTRACENTRAL • DISTRICT 5019 •
SPECIAL MEETING OF THE BOARD OF DIRECTORS:
CENTRAL CONTRA COSTA DAVID R, WILLIAMS
President
SANITARY DISTRICT MICHAEL R.MCGILL
President Pro Tem
ENGINEERING & OPERATIONS
COMMITTEE PAUL CASEY
JAMES A.NEJEDLY
TAD J PILECKI
MINUTES PHONE: (925)228-9500
FAX: (925)372-0192
www.centralsan.org
Tuesday, September 3, 2019
2:00 p.m.
2nd Floor Conference Room
5019 Imhoff Place
Martinez, California
Committee:
Chair Jim Nejedly
Member Tad Pilecki
Guest:
Rick Hernandez
Staff.
Roger S. Bailey, General Manager
Katie Young, Secretary of the District (arrived during Item 3.a.)
Ann Sasaki, Deputy General Manager
Phil Leiber, Director of Finance and Administration
Jean-Marc Petit, Director of Engineering and Technical Services
Danea Gemmell, Planning and Development Services Division Manager
Edgar Lopez, Capital Projects Division Manager
Paul Seitz, Collection System Operations Division Manager (left after Item 3.a.)
Alan Weer, Plant Operations Division Manager (left during Item 3.c.)
Jason DeGroot, Senior Engineer (left after Item 3.a.)
Dan Frost, Senior Engineer (left after Item 3.c.)
Sasha Mestetsky, Senior Engineer (left after Item 3.c.)
Amanda Cauble, Associate Engineer (left after Item 3.c.)
Nancy Molina, Associate Engineer (left after Item 3.b.)
Nick Wright, Vehicle and Eqipment Maintenance Supervisor (left after Item 3.a.)
Amelia Berumen, Senior Administrative Technician
1. Call Meeting to Order
Chair Nejedly called the meeting to order at 2:00 p.m.
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Engineering & Operations Committee Minutes
September 3, 2019
Page 2
2. Public Comments
No public comments.
3. Agenda Items
a. Review draft Position Paper to authorize the General Manager to
purchase two additional rodding trucks to be delivered in Fiscal Years
2020-21 and 2021-22 funded from the Vehicle Replacement Program,
District Project 8517
Mr. Seitz provided a history of the vehicle procurement process and
discussed the alternatives presented in the draft Position Paper. He stated
that staff optimized the approach to obtain proposals for three rodding
trucks that are due for replacement. By obtaining one proposal for three
identical trucks over the course of the next three fiscal years, rather than
doing a single truck annually, it will save time and money for Central San,
staff, and vendors. Furthermore, the truck cost for the next two fiscal years
would be a set figure for budgeting purposes.
Mr. De Groot added that another advantage to ordering the three trucks
now is that since the trucks take a year to build, delivery would be sooner
than the current process as the wait time would be far less. Although the
order would be placed at one time, payment is made upon receipt and
each delivery would occur in the appropriate fiscal year budget cycle;
budget is allocated and available in the current budget plan. Staff
answered various questions from the Committee, including confirming that
Owen Equipment (lowest responsive bidder) is also the current truck
supplier.
Member Pilecki requested staff add clarification to the Position Paper
including: 1) Owen Equipment is the same vendor as past equipment
purchases; and 2) staffs equipment inspection trip to Canada is not
factored into the cost.
COMMITTEE ACTION: Recommended Board approval and addition of
the above clarification additions to the Position Paper.
b.* Review draft position paper to authorize the General Manager to execute
a construction contract change order in an amount not to exceed
$350,000 with C. Overaa & Company for additional bypass work under the
Mechanical and Concrete Renovations, District Project 7351
Mr. Lopez gave an overview of the current construction bypass work,
pointing out the existing bypass into Structure C on the reference
photograph included with the agenda materials. He further described the
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Engineering & Operations Committee Minutes
September 3, 2019
Page 3
work in the subject project area on a presentation board (included as a
handout attachment).
Overall, the current bypass will not allow for finishing all the project work
involved, nor can it be completed safely. Mr. Lopez stated that another
benefit of doing the proposed additional bypass work is the opportunity to
evaluate the primary effluent channel and structure. Most of the channel is
submerged and staff is concerned about corrosion at the structure
entrance.
Mr. Lopez handed out an aerial map of the project area within the
treatment plant (attached). He explained that the yellow dash marks show
the additional piping needed to reach the new discharge location from the
current Structure C location, which also represents the safest solution. He
noted that the current change order threshold also includes a contingency.
Staff responded to several questions from Member Pilecki about various
equipment within the project scope and how truck deliveries will be
impacted. Member Pilecki also noted his knowledge of past issues in the
primary effluent structure and inquired whether staff had explored
installing a gate to allow flow into the 60-inch standby pipeline, namely at
Control Valve (CV) 227 for this project, sharing that consultants had
discussed such an installation in the past. Mr. Weer stated that regardless
if the 72-inch or 60-inch lines were used, CV-227 could be operated. He
added that variable frequency drives have been installed on all the primary
effluent pumps to control flow. Member Pilecki suggested that staff
reinvestigate the gate option as it could be a possible solution to a
potential bottleneck problem in the future. Mr. Lopez said staff is aware of
the past challenges with the CV and has evaluated alternative routing or
solutions in other projects; however, he did not have the information
readily available and could provide an update at a future meeting.
COMMITTEE ACTION: Recommended Board approval.
C. Review draft Position Paper to authorize the General Manager to execute
a professional engineering services agreement in an amount not to
exceed $825,000 with Black & Veatch Corporation to provide on-call
services for the Planning and Development Division for a three-year term
Ms. Gemmell reviewed the background and details of the draft Position
Paper included with the agenda materials.
Member Pilecki opined that the past two Position Papers brought by the
Division for other as-needed consulting agreements included a greater
nexus between the selected consultant and the work to be performed than
what is presented for this agreement. He added that he was not in favor of
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Engineering & Operations Committee Minutes
September 3, 2019
Page 4
awarding a three-year term which could potentially exclude other
consultants with more experience.
Staff provided further explanation in the selection of Black & Veatch,
noting such factors as, but not limited to: 1) the strong team experience,
including familiarity with past A-line inspection experience for Central San;
2) their experience using the latest technology (e.g. lidar, sonar, etc.); 3)
their vast experience implementing projects; and 4) their local experience
for manned entry and closed-circuit television (CCTV) inspections. Mr.
Petit added that staff did a thorough analysis in the review of proposals
received and interviews that were conducted.
Mr. Petit stated that staff has been trying to launch force main
infrastructure projects and these services will provide the expertise
needed to initiate such a program.
COMMITTEE ACTION: Recommended Board approval.
4. Announcements
a. Mr. Bailey informed the Committee that a meeting with [Santa Clara]
Valley Water and Contra Costa Water District regarding the refinery Water
Exchange Project will be held this Friday.
5. Suggestions for Future Agenda Items
a. Receive list of upcoming agenda items and provide suggestions for any
other future agenda items
As mentioned above in Item 3.b., Member Pilecki requested an update of
CV-227 findings to install a gate to the 60-inch pipeline in the Primary
Effluent Control Structure to mitigate a potential issue if the valve were to
fail.
COMMITTEE ACTION: Received the list and provided input to staff.
6. Future Scheduled Meetings
Tuesday, September 17, 2019 at 2:00 p.m.
Tuesday, October 15, 2019 at 2:00 p.m.
Tuesday, November 19, 2019 at 2:00 p.m.
7. Adjournment— at 2:38 p.m.
*Attachments
September 19, 2019 Regular Board Meeting Agenda Packet- Page 114 of 122
Item 3.b.
(Handout)
PRIMARY EFFLUENT CONTROL STRUCTURE
TO PRIMARY EFFLUENT TO STANDBY EFFLUENT
PUMP SUCTION CONDUIT PUMP SUCTION CONDUIT
23630
_N
72r 80"
Junction Structure 'D'
Inlet Sluice Gate
G26440
JUNCTION
STRUCTURE ��i� JUNCTION
CSTRUCTURE
B
Te OVERFLOW TO a ' ^
HOLDING BASINS
JUNCTION PRIMARY
STRUCTURE LEVEL CONTROL 48" SLUICE GATE
VALVE
D W (CV2 2227)
PRIMARY EFFLUENT
PRIMARY EFFLUENT BYPASS CONTROL
CHANNEL DIVERSION VALVE
(C V 22230) (CV22229)
PRIMARY SEDIMENTATION TANKS
PRIMARY EFFLUENT
CHANNEL
September 19, 2019 Regular Board Meeting Agenda Packet- Page 115 of 122
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September 19, 2019 Regular Board Meeting Agenda Packet- Page 116 of 122