HomeMy WebLinkAbout2017-05-23; Municipal Water District; ; Adopt a Resolution authorizing execution of an agreement with Hilts Consulting Group, Inc. for an amount not to exceed $694,440 for the Maerkle Reservoir Floating Cover Replacement Design Project No. 5036proposals were received. The qualifications of the firm have been reviewed by a selection
committee comprised of CMWD staff. The committee reviewed the proposal from Hilts
Consulting Group, Inc., and found that the firm provides highly qualified specialized design
personnel and sub-consultants.
Hilts Consulting Group, Inc. has over 26 years of water reservoir floating cover and liner design
experience. The proposed design team, including its subconsultants, have provided engineering
services for over 100 reservoirs throughout the State for California.
Staff subsequently negotiated scope and fee for the Agreement with Hilts Consulting Group,
Inc. Negotiations were completed in April 2017 and the compensation for the scope of work has
been established as not to exceed $694,440 for the initial two-year term. The selection
committee, in accordance with the procedures listed in Carlsbad Municipal Code section
3.28.060, is recommending the Board of Directors and the City Council authorize the execution
of the Professional Services Agreement with Hilts Consulting Group, Inc. as the consultant
which provided professional qualifications necessary for satisfactory performance, a fair and
reasonable price and demonstrated competence (Government Code section 4526).
Fiscal Analysis
There are sufficient appropriations from the Water Replacement Fund for the design phase of
the Maerkle Reservoir Floating Cover Replacement. An engineer's estimate of the project's
construction cost will be provided as part of the design phase.
DESIGN PHASE-MAERKLE RESERVOIR FLOATING COVER REPLACEMENT, PROJECT NO. 5036
CURRENT APPROPRIATION $10,000,000
Current Expenditures/Encumbrances $10,436
TOTAL FUNDS AVAILABLE $9,989,564
Professional Services Agreement for Design Services (Hilts Consulting Group, $694,440
Inc.)
Estimated Staff Cost Through Design Phase $20,000
TOTAL ESTIMATED DESIGN PHASE COST $714,440
Remaining Balance After Design $9,275,124
ADDITIONAL APPROPRIATION REQUIRED $0
Next Steps
Initiation of the Maerkle Reservoir floating cover replacement design scope of work, leading to
a set of bid documents. Staff will return to the Board for authorization to bid.
Environmental Evaluation (CEQA)
The project is exempt from the California Environmental Quality Act (CEQA) per State CEQA
Guidelines Section 15301(d) -restoration or rehabilitation of existing deteriorated or damage
structures to meet current standards of public health and safety that involving negligible or no
expansion.
Page 312
Public Notification
This item was noticed in accordance with the Ralph M. Brown Act and was available for public
viewing and review at least 72 hours prior to the scheduled meeting date.
Exhibits
1. Resolution authorizing execution of a Professional Services Agreement with Hilts Consulting
Group, Inc. for an amount not to exceed $694,440 for the Maerkle Reservoir Floating Cover
Replacement Design, Project No. 5036.
2. Location Map.
Page 313
RESOLUTION NO. 1570
A RESOLUTION OF THE BOARD OF DIRECTORS OF THE CARLSBAD
MUNICIPAL WATER DISTRICT BOARD, AUTHORIZING EXECUTION OF A
PROFESSIONAL SERVICES AGREEMENT WITH HILTS CONSULTING GROUP,
INC. FOR AN AMOUNT NOT TO EXCEED $694,440 FOR THE MAERKLE
RESERVOIR FLOATING COVER REPLACEMENT DESIGN, PROJECT NO. 5036.
EXHIBIT I
WHEREAS, the Maerkle Reservoir floating cover has reached the end of its useful life and is in
need of replacement; and
WHEREAS, Pursuant to Public Resources Code Section 21065, approving a Professional Services
Agreement does not qualify as a "project" within the meaning of the California Environmental Quality
Act (CEQA) in that it has no potential to cause either a direct physical change in the environment, or a
reasonably foreseeable indirect physical change in the environment, and therefore does not require
environmental review; and
WHEREAS, to obtain professional engineering services for preliminary design, preparation of
plans and specifications, bidding assistance, and construction support services for the Maerkle
Reservoir floating cover replacement, staff solicited proposals from eight qualified engineering firms
consistent with Carlsbad Municipal Code Section 3.28.060; and
WHEREAS, subsequent to a review of the proposal and negotiation of scope and fees, staff
recommends Hilts Consulting Group, Inc. as the consultant providing the best value for the project; and
WHEREAS, the Board has determined it is necessary and in the public interest to enter into an
agreement with Hilts Consulting Group, Inc. to provide preliminary and final design, and construction
support services for the Maerkle Reservoir Floating Cover Replacement Design, Project No. 5036; and
WHEREAS, staff and Hilts Consulting Group, Inc. have negotiated fees in the sum of $694,440
to provide design services as described in the Professional Services Agreement, attached hereto as
Attachment A; and
WHEREAS, funds in the Water Replacement Fund are sufficient for the design ofthis project.
NOW, THEREFORE, BE IT RESOLVED by the Carlsbad Municipal Water District Board of the City
of Carlsbad, California, as follows:
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Incremental payments, if applicable, should be made as outlined in attached Exhibit "A".
6. PREVAILING WAGE RATES
Any construction, alteration, demolition, repair, and maintenance work, including work performed
during design and preconstruction such as inspection and land surveying work, cumulatively
exceeding $1,000 and performed under this Agreement are subject to state prevailing wage laws.
The general prevailing rate of wages, for each craft or type of worker needed to execute the
contract, shall be those as determined by the Director of Industrial Relations pursuant to the
Section 1770, 1773 and 1773.1 of the California Labor Code. Pursuant to Section 1773.2 of the
California Labor code, a current copy of applicable wage rates is on file in the office of the City
Engineer. Contractor shall not pay less than the said specified prevailing rates of wages to all
such workers employed by him or her in the execution of the Agreement. Contractor and any
subcontractors shall comply with Section 1776 of the California Labor Code, which generally
requires keeping accurate payroll records, verifying and certifying payroll records, and making
them available for inspection. Contractor shall require any subcontractors to comply with Section
1776.
7. STATUS OF CONTRACTOR
Contractor will perform the Services in Contractor's own way as an independent contractor and
in pursuit of Contractor's independent calling, and not as an employee of CMWD. Contractor will
be under control of CMWD only as to the result to be accomplished, but will consult with CMWD
as necessary. The persons used by Contractor to provide services under this Agreement will not
be considered employees of CMWD for any purposes.
The payment made to Contractor pursuant to the Agreement will be the full and complete
compensation to which Contractor is entitled. CMWD will not make any federal or state tax
withholdings on behalf of Contractor or its agents, employees or subcontractors. CMWD will not
be required to pay any workers' compensation insurance or unemployment contributions on
behalf of Contractor or its employees or subcontractors. Contractor agrees to indemnify CMWD
and the City of Carlsbad within thirty (30) days for any tax, retirement contribution, social security,
overtime payment, unemployment payment or workers' compensation payment which CMWD
may be required to make on behalf of Contractor or any agent, employee, or subcontractor of
Contractor for work done under this Agreement. At CMWD's election, CMWD may deduct the
indemnification amount from any balance owing to Contractor.
8. SUBCONTRACTING
Contractor will not subcontract any portion of the Services without prior written approval of
CMWD. If Contractor subcontracts any of the Services, Contractor will be fully responsible to
CMWD for the acts and omissions of Contractor's subcontractor and of the persons either directly
or indirectly employed by the subcontractor, as Contractor is for the acts and omissions of persons
directly employed by Contractor. Nothing contained in this Agreement will create any contractual
relationship between any subcontractor of Contractor and CMWD. Contractor will be responsible
for payment of subcontractors. Contractor will bind every subcontractor and every subcontractor
of a subcontractor by the terms of this Agreement applicable to Contractor's work unless
specifically noted to the contrary in the subcontract and approved in writing by CMWD.
9. OTHER CONTRACTORS
CMWD reserves the right to employ other Contractors in connection with the Services.
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10. INDEMNIFICATION
Contractor agrees to indemnify and hold harmless CMWD and the City of Carlsbad, their officers,
officials, employees and volunteers from and against all claims, damages, losses and expenses
including attorney's fees arising out of the performance of the work described herein caused by
any negligence, recklessness, or willful misconduct of the Contractor, any subcontractor, anyone
directly or indirectly employed by any of them or anyone for whose acts any of them may be liable.
The parties expressly agree that any payment, attorney's fee, costs or expense CMWD or the
City of Carlsbad incurs or makes to or on behalf of an injured employee under the their self-
administered workers' compensation is included as a loss, expense or cost for the purposes of
this section, and that this section will survive the expiration or early termination of this Agreement.
11. INSURANCE
Contractor will obtain and maintain for the duration of the Agreement and any and all
amendments, insurance against claims for injuries to persons or damage to property which may
arise out of or in connection with performance of the services by Contractor or Contractor's
agents, representatives, employees or subcontractors. The insurance will be obtained from an
insurance carrier admitted and authorized to do business in the State of California. The insurance
carrier is required to have a current Best's Key Rating of not less than "A-:VII"; OR with a surplus
line insurer on the State of California's List of Approved Surplus Line Insurers (LASLI) with a rating
in the latest Best's Key Rating Guide of at least "A:X"; OR an alien non-admitted insurer listed by
the National Association of Insurance Commissioners (NAIC) latest quarterly listings report.
11.1 Coverages and Limits.
Contractor will maintain the types of coverages and minimum limits indicated below, unless the
Risk Manager or Executive Manager approves a lower amount. These minimum amounts of
coverage will not constitute any limitations or cap on Contractor's indemnification obligations
under this Agreement. CMWD, its officers, agents and employees make no representation that
the limits of the insurance specified to be carried by Contractor pursuant to this Agreement are
adequate to protect Contractor. If Contractor believes that any required insurance coverage is
inadequate, Contractor will obtain such additional insurance coverage, as Contractor deems
adequate, at Contractor's sole expense. The full limits available to the named insured shall also
be available and applicable to CMWD as an additional insured.
11.1.1 Commercial General Liability Insurance. $2,000,000 combined single-limit per
occurrence for bodily injury, personal injury and property damage. If the submitted policies contain
aggregate limits, general aggregate limits will apply separately to the work under this Agreement
or the general aggregate will be twice the required per occurrence limit.
11.1.2 Automobile Liability (if the use of an automobile is involved for Contractor's
work for CMWD). $1,000,000 combined single-limit per accident for bodily injury and property
damage.
11.1.3 Workers' Compensation and Employer's Liability. Workers' Compensation
limits as required by the California Labor Code. Workers' Compensation will not be required if
Contractor has no employees and provides, to CMWD's satisfaction, a declaration stating this.
11.1.4 Professional Liability. Errors and omissions liability appropriate to Contractor's
profession with limits of not less than $1,000,000 per claim. Coverage must be maintained for a
period of five years following the date of completion of the work.
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11.2. Additional Provisions. Contractor will ensure that the policies of insurance required under
this Agreement contain, or are endorsed to contain, the following provisions:
11.2.1 CMWD will be named as an additional insured on Commercial General
Liability which shall provide primary coverage to CMWD.
11.2.2 Contractor will obtain occurrence coverage, excluding Professional Liability,
which will be written as claims-made coverage.
11.2.3 This insurance will be in force during the life of the Agreement and any
extensions of it and will not be canceled without thirty (30) days prior written notice to CMWD sent
by certified mail pursuant to the Notice provisions of this Agreement.
11.3 Providing Certificates of Insurance and Endorsements. Prior to CMWD's execution of
this Agreement, Contractor will furnish certificates of insurance and endorsements to CMWD.
11.4 Failure to Maintain Coverage. If Contractor fails to maintain any of these insurance
coverages, then CMWD will have the option to declare Contractor in breach, or may purchase
replacement insurance or pay the premiums that are due on existing policies in order to
maintain the required coverages. Contractor is responsible for any payments made by CMWD
to obtain or maintain insurance and CMWD may collect these payments from Contractor or
deduct the amount paid from any sums due Contractor under this Agreement.
11.5 Submission of Insurance Policies. CMWD reserves the right to require, at anytime,
complete and certified copies of any or all required insurance policies and endorsements.
12. BUSINESS LICENSE
Contractor will obtain and maintain a City of Carlsbad Business License for the term of the
Agreement, as may be amended from time-to-time.
13. ACCOUNTING RECORDS
Contractor will maintain complete and accurate records with respect to costs incurred under this
Agreement. All records will be clearly identifiable. Contractor will allow a representative of CMWD
during normal business hours to examine, audit, and make transcripts or copies of records and
any other documents created pursuant to this Agreement. Contractor will allow inspection of all
work, data, documents, proceedings, and activities related to the Agreement for a period of three
(3) years from the date of final payment under this Agreement.
14. OWNERSHIP OF DOCUMENTS
All work product produced by Contractor or its agents, employees, and subcontractors pursuant
to this Agreement is the property of CMWD. In the event this Agreement is terminated, all work
product produced by Contractor or its agents, employees and subcontractors pursuant to this
Agreement will be delivered at once to CMWD. Contractor will have the right to make one (1) copy
of the work product for Contractor's records.
15. COPYRIGHTS
Contractor agrees that all copyrights that arise from the services will be vested in CMWD and
Contractor relinquishes all claims to the copyrights in favor of CMWD.
16. NOTICES
The name of the persons who are authorized to give written notices or to receive written notice
on behalf of CMWD and on behalf of Contractor under this Agreement.
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ForCMWD For Contractor
Name Mark Biskup Name Douglas A. Hilts
Title Associate Engineer Title President
Carlsbad Municipal Water District Address 5590 Via de Campo
Address 5950 El Camino Real Yorba Linda, CA 92887
Carlsbad, CA 92008 Phone 909-590-5200
Phone 760-603-7352 E-mail doug.hcg@hiltsconsulting.com
Each party will notify the other immediately of any changes of address that would require any
notice or delivery to be directed to another address.
17. CONFLICT OF INTEREST
Contractor shall file a Conflict of Interest Statement with the City Clerk in accordance with the
requirements of the City of Carlsbad Conflict of Interest Code. The Contractor shall report
investments or interests in all four categories.
18. GENERAL COMPLIANCE WITH LAWS
Contractor will keep fully informed of federal, state and local laws and ordinances and regulations
which in any manner affect those employed by Contractor, or in any way affect the performance
of the Services by Contractor. Contractor will at all times observe and comply with these laws,
ordinances, and regulations and will be responsible for the compliance of Contractor's services
with all applicable laws, ordinances and regulations.
Contractor will be aware of the requirements of the Immigration Reform and Control Act of 1986
and will comply with those requirements, including, but not limited to, verifying the eligibility for
employment of all agents, employees, subcontractors and consultants that the services required
by this Agreement.
19. DISCRIMINATION AND HARASSMENT PROHIBITED
Contractor will comply with all applicable local, state and federal laws and regulations prohibiting
discrimination and harassment.
20. DISPUTE RESOLUTION
If a dispute should arise regarding the performance of the Services the following procedure will
be used to resolve any questions of fact or interpretation not otherwise settled by agreement
between the parties. Representatives of Contractor or CMWD will reduce such questions, and
their respective views, to writing. A copy of such documented dispute will be forwarded to both
parties involved along with recommended methods of resolution, which would be of benefit to
both parties. The representative receiving the letter will reply to the letter along with a
recommended method of resolution within ten (10) business days. If the resolution thus obtained
is unsatisfactory to the aggrieved party, a letter outlining the disputes will be forwarded to the
Executive Manager. The Executive Manager will consider the facts and solutions recommended
by each party and may then opt to direct a solution to the problem. In such cases, the action of
the Executive Manager will be binding upon the parties involved, although nothing in this
procedure will prohibit the parties from seeking remedies available to them at law.
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21. TERMINATION
In the event of the Contractor's failure to prosecute, deliver, or perform the Services, CMWD may
terminate this Agreement for nonperformance by notifying Contractor by certified mail of the
termination. If CMWD decides to abandon or indefinitely postpone the work or services
contemplated by this Agreement, CMWD may terminate this Agreement upon written notice to
Contractor. Upon notification of termination, Contractor has five (5) business days to deliver any
documents owned by CMWD and all work in progress to CMWD address contained in this
Agreement. CMWD will make a determination of fact based upon the work product delivered to
CMWD and of the percentage of work that Contractor has performed which is usable and of worth
to CMWD in having the Agreement completed. Based upon that finding CMWD will determine the
final payment of the Agreement.
Either party upon tendering thirty (30) days written notice to the other party may terminate this
Agreement. In this event and upon request of CMWD, Contractor will assemble the work product
and put it in order for proper filing and closing and deliver it to CMWD. Contractor will be paid for
work performed to the termination date; however, the total will not exceed the lump sum fee
payable under this Agreement. CMWD will make the final determination as to the portions of tasks
completed and the compensation to be made.
22. COVENANTS AGAINST CONTINGENT FEES
Contractor warrants that Contractor has not employed or retained any company or person, other
than a bona fide employee working for Contractor, to solicit or secure this Agreement, and that
Contractor has not paid or agreed to pay any company or person, other than a bona fide
employee, any fee, commission, percentage, brokerage fee, gift, or any other consideration
contingent upon, or resulting from, the award or making of this Agreement. For breach or violation
of this warranty, CMWD will have the right to annul this Agreement without liability, or, in its
discretion, to deduct from the Agreement price or consideration, or otherwise recover, the full
amount of the fee, commission, percentage, brokerage fees, gift, or contingent fee.
23. CLAIMS AND LAWSUITS
By signing this Agreement, Contractor agrees that any agreement claim submitted to CMWD must
be asserted as part of the agreement process as set forth in this Agreement and not in anticipation
of litigation or in conjunction with litigation. Contractor acknowledges that if a false claim is
submitted to CMWD, it may be considered fraud and Contractor may be subject to criminal
prosecution. Contractor acknowledges that California Government Code sections 12650 et seq.,
the False Claims Act applies to this Agreement and, provides for civil penalties where a person
knowingly submits a false claim to a public entity. These provisions include false claims made
with deliberate ignorance of the false information or in reckless disregard of the truth or falsity of
information. If CMWD seeks to recover penalties pursuant to the False Claims Act, it is entitled to
recover its litigation costs, including attorney's fees. Contractor acknowledges that the filing of a
false claim may subject Contractor to an administrative debarment proceeding as the result of
which Contractor may be prevented to act as a Contractor on any public work or improvement for
a period of up to five (5) years. Contractor acknowledges debarment by another jurisdiction is
grounds for CMWD to terminate this Agreement.
24. JURISDICTION AND VENUE
Any action at law or in equity brought by either of the parties for the purpose of enforcing a right
or rights provided for by this Agreement will be tried in a court of competent jurisdiction in the
County of San Diego, State of California, and the parties waive all provisions of law providing for
a change of venue in these proceedings to any other county.
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25. SUCCESSORS AND ASSIGNS
It is mutually understood and agreed that this Agreement will be binding upon CMWD and
Contractor and their respective successors. Neither this Agreement nor any part of it nor any
monies due or to become due under it may be assigned by Contractor without the prior consent
of CMWD, which shall not be unreasonably withheld.
26. ENTIRE AGREEMENT
This Agreement, together with any other written document referred to or contemplated by it, along
with the purchase order for this Agreement and its provisions, embody the entire Agreement and
understanding between the parties relating to the subject matter of it. In case of conflict, the terms
of the Agreement supersede the purchase order. Neither this Agreement nor any of its provisions
may be amended, modified, waived or discharged except in a writing signed by both parties.
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Exhibit "A"
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
PROJECT UNDERSTANDING
SECTION 4 -PROJECT
UNDERSTANDING
Carlsbad Municipal Water District (CMWD) is a subsidiary to the City of Carlsbad. CMWD purchases
potable water through the San Diego County Water Authority (SDCWA), which is imported from t],e Metropolitan
Water District of Southern California. CMWD water is blended with water from the Claude "Bud" Lewis Carlsbad
Desalination Plant. SDCWA delivers water to CMWD via four metered connections. Maerkle Reservoir water is
provided by a service connection for the Tri-Agency Pipeline. Maerkle Reservoir is the primary water storage
reservoir the City of Carlsbad and provides a 10-day operational storage. Additional on-site storage is available
from an adjacent 10 MG buried concrete tank.
Maerkle Reservoir (formerly Squires Dam Reservoir) is an existing potable water reservoir which was
originally constructed in the early 1960's as an earthen, open air reservoir. The reservoir is defined by an earthen
dam on the south/southwest end . Maerkle Reservoir has a capacity of approximately 600 acre-feet (196 MG), 17
acre horizontal surface area, interior earthen side slopes ranging from 2.5:1 to 4.5 :1, mildly sloping floor, and
maximum water depth of 60 feet. The top of slope is defined with a cast-in-place concrete curb and asphalt paved
perimeter road. Site drainage is provided by catch basins and storm drain pipes located on the reservoir east and
west sides.
The reservoir has a single 42 inch buried inlet pipe which terminates in the northern portion of the
reservoir floor with an upturned pipe in a concrete inlet structure covered with a stainless steel grillage cage.
Three chlorine injector pads ar~ located along the inlet pipe. The reservoir outlet is a single 30 inch buried
pipeline located at the reservoir south end. Three concrete outlet structures covered with stainless steel grillage
cages are located along the sloping portion of the buried outlet pipe. A concrete overflow structure is located in
the reservoir southwest corner near the top of slope and discharges to a concrete channel. The overflow structure
has a 12 foot wide by 6 foot 2-inch deep opening covered with a stainless steel grillage cage. Eight 2-inch buried
PVC washdown pipes are located in the reservoir interior at the bottom of slope and terminate in concrete
washdown vaults covered with grating.
In 1996 the upstream dam face was regraded, a porous asphalt liner was installed on the reservoir slopes
and floor, and the existing polypropylene geomembrane floating cover was installed. The existing floating cover is
anchored to a perimeter concrete curb/ringwall at the top of slope. The existing rainwater removal system was
upgraded in 2007 and consists of eight 1 hp sump pumps located in the floating cover tension troughs Pump
discharge hoses are connected in series on the floating cover and ultimately discharged at two locations at the top
of slope.
The floating cover is 20 years old, at or near the end of its material life, and CMWD is seeking to replace
the floating cover. The principle project objective is to replace the existing floating cover. The replacement
project will incorporate industry improvements which have occurred in the past 20 years since the original floating
cover was installed. All improvements shall be performed in compliance with and approved by the California
Division of Drinking Water (DDW). The objective of the geomembrane floating cover project is to provide a cost
effective solution to protect and preserve the potable water quality and meet regulatory requirements.
This proposal section demonstrates the HCG team's project understanding, means to apply our vast
knowledge and experience with similar floating cover projects, specific methods to be utilized, and project specific
approaches to providing CMWD with a quality design that will be completed on-budget and on-schedule. Our
team will provide a design that offers innovative and cost-effective solutions. The HCG team's project
understanding and technical approach is based on the following information:
• CMWD's Request for Proposal on January 17, 2017
• Multiple site visits and meeting with CMWD by both HCG and Kleinfelder
• Thorough review of the following record drawing information:
Construction Plans for the Maerkle Reservoir Cover and Liner Improvements (CMWD
record drawing 938-9, Project No. 90-109) dated July, 1996
Hilts Consulting Group 4-1 Page 325
Carlsbad Municipal Water District
SECTION 4-PROJECT
UNDERSTANDING Maerkle Reservoir Floating Cover Replacement, Project No. 5036
Construction Plans for Maerkle Reservoir Cover Rainwater System Upgrade (CMWD
record drawing 451-4) dated June 2007
Construction Plans for the Pressure Control Hydroelectric Facility at the Maerkle
Reservoir (CMWD record drawing 477-2) dated May 2013
Construction Plans for Maerkle Pump Station and Disinfection Facilities (CMWD record
drawing 938-7) dated February 1992
TECHNICAL APPROACH
HCG's approach is based on a collaborative effort that includes geomembrane floating cover expertise, in
depth technical expertise, and a history of providing both design and construction management services for
similar potable water reservoir facilities. The design collaboration seeks to utilize interactive input from CMWD
during all aspects of design development through a series of meetings at key milestones. The project design will
incorporate CMWD's working knowledge and previous experiences with geomembrane floating covers. HCG team
will evaluate and build upon those elements which were successful in the past and propose alternates and
solutions to those elements which presented operational challenges. While there are similarities among all
geomembrane floating covers there are also distinct differences in each project including physical geometry,
hydraulic facilities, and operational conditions which have a direct impact of the various design elements and
operations.
HCG's design philosophy is to provide our clients with fully detailed construction drawings and
comprehensive specifications. Thorough design documents result in less contractor guesswork during
construction, which translate into fewer change orders, projects completed on time, and within allocated budgets.
The overall project effort will consist of project management; field visit, data gathering, and records
research; surveying and mapping; geotechnical investigation; preliminary design report (which will consist of
planning and reservoir cover options evaluation, drainage systems review, preparation of a preliminary design
report, preparation of 30% design level drawings, and a preliminary cost estimate); preparation of construction
drawings (90%, 100%, and final), technical specifications; construction cost estimates; identification of permits; bid
phase support; and construction engineering support services.
Geomembrane floating covers have a typical life span of 20 years or more. When installing a floating
cover, HCG recommends those components and the remaining life for those items inside the reservoir should be
evaluated. Those items which can be replaced via divers or easily accessed and addressed during an outage may
be deferred, otherwise the reservoir Owner should critically evaluate those reservoir interior items with the
simple question, "Can or will this item last for another 20 years?"
In an effort to thoroughly understand the Maerkle Reservoir Floating Cover Replacement, the HCG Team
has prepared the following analysis of major technical issues which are summarized below:
Reservoir Floating Cover: The existing floating cover has adequately served CMWD for the past 20 years.
During this time enhancements and improvements have developed in the floating cover design. A major
development was the issuance of the AWWA California-Nevada "Reservoir Floating Cover Guidelines"
(Guidelines). The Guidelines have been endorsed by the California Division Drinking Water for floating cover
design, maintenance, and operations and referenced in the State's Drinking Water Standards. The Guidelines shall
be reviewed and applicable provisions incorporated into the Maerkle Reservoir floating cover design. Major
developments and design criteria in the Guidelines includes minimum floating cover tension to ensure adequate
personnel access and promote better rainwater drainage, maximum floating cover tension to assure material is
not over-stressed or suspect to long-term creep, requirement for scrim reinforced material to resist long term
creep from prolonged tension, established minimum rainwater collection trough buoyancy, defined minimum
access hatch performance standards, access hatch venting requirements, minimum hatch freeboard height above
water level, minimum vent buoyancy, and minimum design rainwater storm events with defined rainwater
removal durations.
Hilts Consulting Group 4-2 Page 326
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
SECTION 4 -PROJECT
UNDERSTANDING
A major consideration with geomembrane floating cover design is material selection. There are several
geomembrane material options commercially available. Each material has varying degrees of advantages and
disadvantages. HCG proposes the geomembrane material selection should be a joint collaborative decision
between CMWD as the Owner and HCG as the design engineer. Factors to consider include initial material cost,
installation considerations, material warranty duration and terms, past history (successes and failures),
maintenance factors, and ability to perform future repairs to aged material.
The floating cover is envisioned to be a weight-tensioned geomembrane floating cover constructed with a
45-mil thick, scrim-reinforced geomembrane; submersible pumps as the rainwater removal system located in the
bottom of slope tension troughs; adequate number and strategically located access hatches with venting
capabilities; and vacuum/air vents at inlet structure, outlets structures, and overflow structure. The floating
cover will be attached to the existing perimeter anchor curb/ringwall located at the top of slope.
The existing reservoir geometry is a regular shape with uniform geometry. The reservoir corners are all
interior angles less than 180 degrees, no reentrant corners. Rainwater collection troughs will be located on the
reservoir floor inboard and parallel to the bottom of slope. Radial troughs at each corner will have a specific
layout based on the geometry of each corner.
The various reservoir interior slopes will generate slack at different rates and thus the floating cover
require different float spacing for both the bottom of slope rainwater collection troughs and the corner radial
troughs.
Site specific rainfall criteria will be established and used to provide pump sizing and number of pumps to
be located throughout the floating cover. The number, size, and location of rainwater removal pumps will be
evaluated to provide a reliable and redundant rainwater removal system, thereby simplifying the operations and
maintenance. Submersible pumps are anticipated in the bottom of slope troughs and will serve as the primary
rainwater removal system . Suction hose(s) in radial trough(s) that may be connected to portable pump(s) will
serve as a secondary rainwater removal system. The existing pump discharge system should be evaluated for
adequate capacity for the design level storm flows and rainwater removal rates to satisfy the AWWA Guidelines.
The floating cover design will be based on the current state of the art design for reservoir floating covers
and will be in accordance with the following latest standards:
• AWWA "Flexible-Membrane Covers and Linings for Potable-Water Reservoirs," AWWA Manual M25
• AWWA "Standard for Flexible-Membrane-Lining and Floating-Cover Material for Potable-Water
Storage," D130
• AWWA California-Nevada Section "Reservoir Floating Cover Guidelines"
The Preliminary Design Report will include detailed information on all the floating cover design issues and
material selection which CMWD and HCG will jointly review and reach consensus on these key milestone decisions
to more efficiently enter into final design.
Reservoir Chafer: A geomembrane chafer is recommended between new floating covers and existing
substrates such as asphalt, concrete, or gunite. The chafer serves as a sacrificial material to minimize puncture
potential and abrasion to the floating cover. Best practice is to extend the chafer from the top of slope to the low
operating level as a minimum or better to the bottom of slope. When those portions of the floating cover are not
floating the chafer allows the floating cover to rest on a similar geomembrane material. This philosophy may be
extended onto the reservoir floor based on the condition and roughness of the existing subgrade. This issue will
be further reviewed and presented in the Preliminary Design Report.
Rainwater Pumps Discharge Configuration: The existing rainwater sump pump discharges water collected
on top of the floating cover via eight existing submersible sump pumps. The discharge from three of these pumps
is tied into a common piping header that discharges the water onto a splash pad near the reservoir overflow
channel on the west side of the reservoir. The other five pumps are tied into a common header that discharges
the water onto a splash pad at the northeasterly side of the reservoir. The current configuration discharge header
Hilts Consulting Group 4-3 Page 327
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
SECTION 4 -PROJECT
UNDERSTANDING
configuration may be simplified and be more reliable by having each pump tied into its own discharge piping from
the pump to a discharge point at the top of slope without sharing a header. This would eliminate unnecessary
hose lengths on the floating cover, allow for smaller hose sizes on the floating cover, and allow each pump to
operate independent of each other. This is one of the team's innovative approaches for this project and will be
evaluated as part of the Preliminary Design Report.
Site Drainage and Pump Discharge Drainage: The HCG Team will evaluate the existing surface drainage
patterns and drainage facilities immediately adjacent to the reservoir to determine if the drainage away from the
reservoir perimeter curb/ringwall is adequate and that the flow path into the existing subsurface facilities are
unobstructed. This will assist in evaluating whether other potential improvements to the rainwater pump system
might be easily implemented using existing surface drainage patterns.
Reservoir Mixing: There several types of mixers that can be evaluated to promote a more uniform mixing of
the treated water within the reservoir to preserve the "freshness" and disinfectant levels and reduce dead zones
within the storage volume. The HCG Team will review these alternatives and provide a list of advantages and
disadvantages for each type of mixer. The three types of mixers to be considered are: 1) in-reservoir impeller,
such as a PAX PWM 500 (submerged motor); 2) in-reservoir ejector, like a Process Solutions, Inc. Tank Shark
(motor and pump outside the reservoir); and 3) large paddle mixers (low energy in-reservoir motors).
Chlorination Injection location: Related to reviewing the positive effects of providing mixing within the
reservoir, the HCG Team will evaluate the location of the chlorine injection point to assure that it is at an optimal
location for the type of mixer configuration that may be selected. According to the record drawings, the current
chlorination configuration discharges the chlorine solution at three different locations along the reservoir bottom
with one of these locations immediately adjacent to the inlet piping discharge into the reservoir. The HCG Team
will evaluate relocating the chlorine injection points closer to the locations of any mixers that may be added inside
of the reservoir.
As part of the evaluation HCG Team recommends as an optional service to provide CFO modeling to
illustrate the effectiveness of the mixer type and chlorine distribution throughout the reservoir.
Potential Asphalt liner Issues: The existing asphalt liner is thought to be in good condition according to
observations by operations and maintenance staff. The HCG Team recommends that during the early phase of the
project the reservoir level be lowered to expose the existing asphalt liner so a visual inspection and evaluation
may be provided. HCG subconsultant, Kleinfelder has several pavement experts on staff that can be utilized to
provide this visual inspection. This observation will serve to provide the basis for liner repair recommendation
associated with installation of new equipment (requiring anchoring and foundations) within the reservoir. Upon
inspection recommendations could be provided to enhance or supplement the performance of the reservoir liner
for the next twenty years. As a minimum, this inspection and evaluation could assist with developing mitigation
strategies for the existing asphalt liner if damaged during the construction phase. The project team will provide
assistance as needed to help CMWD obtain a waiver from the California Division Drinking Water for the asphalt
liner.
In-Reservoir Valve/Actuator Replacement: The existing inlet, valve, and three outlet valves are
approaching the end of their useful life and should be considered for replacement as part of this project. The
existing 30-inch diameter butterfly valves are operated by hydraulic actuators which use pressurized product
water to operate the valves. Part of the equipment used for this system encompasses a compressor and pressure
tank that should be considered for replacement as well. Another option that could be considered apart from the
existing actuator is a Rotork Subsea actuator. This actuator performs well under submerged conditions. A typical
floating cover life may range into 20+years. Those. components inside the reservoir and to be covered with the
new floating cover may not be easily accessible for 20+ years and therefore the existing life of items within the
reservoir, and especially key operational items, should be evaluated in a 20+ year horizon.
Hilts Consulting Group 4-4 Page 328
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
SCOPE OF WORK
SECTION 4 -PROJECT
UNDERSTANDING
HCG proposes to provide and perform the following professional engineering services :
Task 1 -Project Management
HCG's project manager will be CMWD's sole point of contact. This will enable CMWD to streamline
inquiries through a single point of contact and accountability. HCG will be responsible for the coordination of all
work activities with subconsultants and to ensure all project aspects are addressed. HCG will provide project
management and coordinate all issues with design team members and CMWD to ensure all matters are
adequately addressed.
One of the first tasks is the design kick-off meeting with CMWD. HCG will develop meeting agenda and
issue meeting minutes to document discussion topics and establish task list items with milestone delivery dates.
The HCG team attendees will include all key design team members and would request CMWD be represented by
all key members and project stakeholders. The purpose of the kickoff meeting will serve as an introduction of all
interested parties, establ ish protocols and lines of communication, establish project objectives, and allow CMWD
to convey project requirements. The kickoff meeting is often most productive when conducted in a free flow
forum with interactive discussions and ideas. Immediately after the kickoff meeting, HCG proposes a site visit with
design team members for an initial review of site conditions and further collaboration with CMWD on project
objectives.
Throughout the design phase, HCG will conduct monthly progress coordination meetings with CMWD.
Purpose of monthly coordination meetings is to review design progress with CMWD and coordinate any efforts or
project needs between the HCG Team and CMWD. HCG will develop meeting agenda and issue meeting minutes
to document discussion topics and establish task list items with milestone delivery dates.
Monthly invoices shall include brief summary of work progress completed during the billing period,
identify key milestones accomplished and upcoming milestones, and identify project concerns requiring attention
to keep project on schedule.
Each design discipline will be responsible for their respective quality assurance I quality control (QA/QC).
HCG will be responsible for overall project coordination and review deliverable documents for completeness.
Additionally, HCG proposes to engage Kleinfelder and the 35 years experience of Daniel Smith, Senior Principal
Engineering I VP, to perform independent QA/QC reviews. Mr. Smith is already familiar with the project and will
be involved with the project to understand CMWD's needs and project objectives. This will enable Mr. Smith to
maintain a familiarity with the project and provided a meaningful and valuable reviews.
Task 2 -Field Reconnaissance, Data Collection, and Utility Search
HCG team will review existing drawings, specifications, operations manuals, and other applicable
information provided by the CMWD to gain a complete and detailed understanding of the reservoir operations
and overall project scope.
To further understand the existing conditions, applicable design parties will conduct field site visits to
verify existing conditions and document changed conditions. An initial field visit is proposed on the same day and
after the project kickoff meeting.
HCG would perform a walk-on inspection of the existing floating cover to evaluate the existing conditions
and performance of existing floating cover elements. This will be used to critique those items and/or areas that
are performing well and help to identify items/areas that should be refined in the new floating cover design.
The HCG Team has contacted Dig Alert Design Lookup services to obtain a list of_ the utilities of the utility
companies registered with them that have facilities on the Maerkle site. The HCG Team will contact each utility to
obtain their record drawings and compare them with CMWD's record drawings. The information will be plotted
on the existing base plan and then will be verified in the field where locations may be critical to the design or the
construction. Mark-outs will be field located by survey where possible in the vicinity of the reservoir.
Hilts Consulting Group 4-5 Page 329
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
Task 3 -Surveying and Mapping
SECTION 4 -PROJECT
UNDERSTANDING
HCG Team understands that accurate survey base maps are the foundation of this project. Topographic
survey will provide the geometry of the existing ring wall for design of the new cover, elevations on overflow
structures, locations of existing drains and the overall site elevations for drainage calculations. In addition to
precise topography we will set durable monuments will be set for construction staking control. These monuments
will be tied to the City of Carlsbad's survey control Record of Survey and have NAO 83, NGVD 29 values.
• Research survey control points and benchmarks within and adjacent to the project site at the
County of San Diego and City of Carlsbad.
• Establish NAD 83 horizontal and NGVD 29 vertical project control based on the City of Carlsbad
survey control Record of Survey 17271 on an adequate number of new or existing control points
that are durable and suitable for construction staking control.
• Set aerial control targets (6) and tie to project control utilizing RTK, GPS, double occupation.
• Locate existing surface utilities within the project site, culverts drain pipes water valve can
locations and the elevation of the top of the operating nut. Collect check points around the site
to verify the accuracy of the aerial mapping and collect supplemental topography in obscured
areas.
• Update aerial mapping to include su rface utilities locations, water valve information and
supplemental mapping. Verify aerial mapping accuracy.
• Provide aerial mapping 1"=40' with 1' contours covering the project site.
Task 4 -Geotechnical Investigations (not used)
Task 5 -Legal Descriptions and Plats (not used)
Task 6 -30% Design Submittal (Preliminary Design Report -PDR)
The 30% Design Submittal Preliminary Design Report is a vital element for a successful project. The
purpose of the PDR is to define the project in detail. Issues can be identified, evaluated, and resolution obtained
before progressing too fa r into the design phase. The PDR will include, but not limited to, those topics identified
in the above Technical Approach subsection. During the PDR development CMWD will have the opportunity to
provide comments and redirection, as necessary, before design is substantially further developed. Preliminary
design shall contain basic information for all the project elements and shall be a means to identify the global .
project scope.
The PDR will contain written description of project scope, identify major project elements, provide
discussion and rational for key decisions, prepare an estimated 8 preliminary design drawings, develop final design
drawing list, provide specifications table of contents, rough order of magnitude construction cost estimate, and
construction contract duration. The PDR will include a feasibility review of potential joint use of photovoltaic
system on the floating cover. A key decision from the PDR is the geomembrane material selection and will seek
CMWD input on this decision. The PDR will provide CMWD an early forecast of the project elements and
associated budgetary costs.
HCG proposes a meeting with CMWD and key design team members at the submission of draft PDR.
Purpose of this meeting is to present the draft PDR to CMWD, provide an overview of the draft PDR on a section
level summary, review assumptions, and seek any initial CMWD thoughts. After CMWD's detailed review of the
draft PDR, HCG proposes a review meeting with key design team members and with CMWD staff to review draft
PDR detailed comments and discuss open issues or questions. HCG believes in an interactive approach with
CMWD to better understand draft review comments and fully understand CMWD's needs so the design team can
deliver the best work product possible. Responses to all CMWD comments shall be documented and itemized in a
tabular format where the design discipline can prepare a side-by-side response to each comment. The HCG Team
Hilts Consulting Group 4-6 Page 330
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
responses shall be submitted to CMWD within 2 weeks after receipt.
SECTION 4 -PROJECT
UNDERSTANDING
PDR deliverables will include (5) original PDR copies, (5) half-size drawings, (5) D-sheet size drawings, and
electronic pdf copy on USB memory stick.
Inlet Pipe Upsizing Consideration: The existing reservoir outlet pipe is reduced in an existing vault located
outboard of the reservoir dam downstream face. Prior studies indicate this may pose a limitation on reservoir
hydraulic operations. This issue will be further investigated during the PDR task with recommendations to CMWD
for future considerations. Outlet piping modifications are not included in the construction drawings, specifications
and construction phases of this proposal.
Task 7 -Construction Drawings
Upon completion of the PDR, the HCG Team shall proceed with final design in the preparation of detailed
engineering design and construction drawings. Detailed design construction drawings will be developed for public
bidding purposes. All project elements will be fully detailed on the construction drawings providing the eventual
contractor complete direction and well-defined scope of work. Floating cover elements will include, but not
limited to: reservoir trough layout, floating cover tensioning, tension trough float spacing, tension trough
buoyancy, access/inflation hatch, air and vacuum vents, rainwater removal system, perimeter anchorage, and
special details at unique underwater structures.
Construction drawings will be prepared in AutoCAD in accordance with CMWD standards. Proposal
assumes CMWD will provide electronic copy of drawing border in AutoCAD format. HCG anticipates up to (45) D-
size construction drawings for the project construction documents.
The HCG Team will review the areas affected by the construction and propose the appropriate BMPs for
erosion protection. Currently, there will not be any significant disturbance of soil for this project with the
exception on the Contractor's laydown and equipment storage areas which are currently proposed to be located
in areas that area already paved . The SWPPP and the BMPs will be geared toward eliminating any runoff directly
from those storage areas without minimal treatment. The responsibility (and means and methods) for this will be
the Contractor's following the guidelines in the plans and specifications.
Task 8 -Specifications
In conjunction with development of construction drawings, HCG Team will prepare technical
specifications to supplement the design drawings. Technical specifications will be prepared in CSI 17 division, 3
part format for sections 1 through 17. Technical specifications will be prepared in Microsoft Word.
Proposal assumes CMWD will provide CSI division 0, up front documents to HCG for review and
coordination with technical specification sections and unique project specific requirements. HCG will review and
redline CMWD's front ends contract documents to address specific project needs. HCG will prepare bid sheet for
items specific to the project scope of work.
Storm Water Pollution Prevention Plan: Based upon the results on the PDR, basic storm water pollution
prevention provisions shall be included in the specifications. Proposal is based on the threshold that less than 1
acre of area will be disturbed during construction and a fully detailed SWPPP will not be required. Basic erosion
control and good practices shall be included in the construction specifications.
Progress Submittals Deliverables (Tasks 7 & 8)
HCG proposes a meeting with CMWD personnel and key design team members at the submission of both
the 90% and 100% progress submittal. Purpose of the meetings is to present the progress submittal package to
CMWD, discuss how prior review comments were addressed, and seek any initial CMWD thoughts. After CMWD's
detailed review of each progress submittal, HCG proposes a review meeting with key design team members and
Hilts Consulting Group 4-7 Page 331
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
SECTION 4-PROJECT
UNDERSTANDING
with CMWD staff to review detailed comments and discuss open issues or questions. Responses to all CMWD
comments shall be documented and itemized in a tabular format where the design discipline can prepare a side-
by-side response to each comment. HCG Team responses shall be submitted to the City within 2 weeks after
receipt.
Progress submittal deliverables will include: technical memorandum highlighting submittal content and
changes from the prior submittal, updated construction cost estimate, calculations prepared to date, (5) bond sets
of half size drawings, (2) bond sets of D-sheet size drawings, (4) bond sets of technical specifications, and
electronic pdf copy on USB memory stick.
Final design submittal deliverable shall be used for public bidding. All review comments from the prior
progress submittals will be incorporated into the final construction documents or shall be properly addressed and
resolved. Final design submittal will include: technical memorandum highlighting submittal content and changes
from the prior submittal, final engineer's opinion of construction cost estimate, final calculations, (1) bond set of
D-sheet drawings, (1) reproducible bond set of technical specifications, and electronic copy of AutoCAD drawing
files and Word specification files on USB memory stick. Each construction drawing, technical specifications cover
page, and calculations cover page shall be stamped by a California licensed Professional Engineer.
Task 9 -Project Cost Estimate
Construction cost estimates are an important component in any project to keep the owner informed of
estimated costs for construction and to eliminate surprises. The HCG Team will prepare engineer's probable
opinion of construction cost estimate at the 30% PDR phase, 90% progress submittal, 100% progress submittal,
and the final design submittal. Construction cost estimate will be submitted in conjunction with the drawings and
specifications progress submittals and adjusted accordingly as the design progresses and the project construction
scope of work is refined. Cost estimates will reflect the bid schedule to be included with the bid documents.
In conjunction with the construction cost estimate, HCG will prepare an estimated Gant chart
construction schedule for each of the above listed milestones. The level of detail, durations, and dependencies
will be refined as the design progresses. Construction schedule will be used to define construction duration for
the construction contract and establish any critical milestone dates, such as reservoir dewatering, CMWD outage
windows, critical path items, long lead items, etc.
Task 10 -Permitting
The PDR and project specifications will identify those permits to be obtained by the contractor. This may
include, but not limited to special hauling, shoring, regulated waste, groundwater discharge, stormwater
discharge, etc.
In addition to construction permits, HCG Team will work with CMWD for special regulatory approvals
required specific to potable water reservoirs, which typically includes California Division Safety of Dams (DSOD)
and California Division Drinking Water (DDW). HCG recommends the final PDR be submitted to DSOD and DDW to
serve as a project introduction and seek early input on any regulatory concerns and seek conceptual approval.
Based on past successful projects, and to keep the project schedule on track, HCG recommends the 90% progress
submittal be submitted to DDW and DSOD for approval. At this point the construction documents are well
developed to the point approvals can be obtained or review comments are minimal and can be addressed
between the 90% and 100% submittal. All DSOD and DDW comments will be incorporated in the construction
documents and included in the progress submittal technical memorandums to CMWD.
Task 11-Bidding Phase Services
HCG will assist CMWD during the bid phase. HCG Team will address bidder questions submitted to
CMWD during the bidding period. HCG Team will prepare addendums to design drawings and technical
specifications, as needed. Proposal assumes up to 15 inquiries and 24 hours allotted for bid phase addendums.
Task 12 -Construction Phase Services
HCG Team will provide engineering support services during the construction phase. As stated in the
CMWD's RFP, proposal assumes up to (20) Request for Information (RFI) and (40) technical construction
Hilts Consulting Group 4-8 Page 332
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
SECTION 4 -PROJECT
UNDERSTANDING
submittals/shop drawings for conformance with design drawings and specifications. Deliverables include written
responses to RFl's and annotated submittals with reviewer comments. Deliverables to be returned to CMWD
construction manager for consolidation, coordination, and distribution.
Expanded Construction Phase Services: Geomembrane floating covers is a specialty niche that is limited ·to a
select group of qualified engineers, construction managers, inspectors, and contractors. HCG's experience has
been those projects which are the most successful have included a certain amount of involvement from the design
engineer of record during construction. The additional construction phase services include:
• Attend prebid meeting and preconstruction meetings.
• Prepare conformed construction documents during construction phase to incorporate all
addendums.
• Conduct geomembrane material manufacturing plant visit. The manufacturing plant visit would
be a single 2-day visit to provide a spot observation of material manufactured specifically for the
Maerkle Reservoir project. The plant visit would be conducted after the manufacturer's MQA
submittal is approved. The intent of the plant visit is to observe the material manufacturing
process, verify QA/QC measures are performed, monitor non-destructive and destructive QC
tests performed by manufacturer as part of their in-house QA/QC plan, and observe on-site
material validation testing. This random partial observation does not assume full-time
manufacturing inspection and is intended to be representative of the overall material production.
Deliverable includes letter report summary.
• Conduct geomembrane material fabrication shop visit. Once the geomembrane material is
manufactured, roll good are shipped to a fabrication shop where large custom-made panes are
made specific to the project and reservoir geometry. The fabrication shop would be a single 2-
day visit to provide a spot observation of panel fabrication and associated geomembrane
accessories specifically for the Maerkle Reservoir project. The fabrication shop visit would be
conducted after the fabricator's FQA submittal is approved. The intent of the fabrication visit is
to observe the handling process, verify QA/QC measures are performed, monitor non-destructive
and destructive QC tests performed by fabricator as part of their in-house QA/QC plan, and
observe on-site seam validation testing. T his random partial observation does not assume full-
time fabrication inspection and is intended to be representative of the overall fabricator's
production. Deliverable includes letter report summary.
• Provide site visits and observations (1) day per week during on-site construction to address
floating cover construction issues. On-site observation visits are independent of inspection
services and are not for inspection purposes, but rather to monitor construction progress,
address field questions, and the overall implementation of the design intent. On-site visits are to
supplement the construction management and inspection personnel given the specialty nature
and limited experience personnel may have on floating cover projects.
• Provide up to (3) site visits during the initial reservoir startup.
Depth vs. Capacity Curve: Once the reservoir is fully dewatered for construction and the existing floating cover is
removed additional surveying services will be performed to document existing topography conditions. Additional
surveying tasks include: set up to (S) additional aerial control points tied to project control; perform aerial
mapping on reservoir interior; collect elevations within reservoir for piping, drains, bottom of slope, and top of
slope to supplement prior surveying data; and update base map from design surveying. The existing as-built
reservoir interior topography will be used to develop a reservoir depth vs. capacity chart for CMWD's use in future
operations.
At the completion of construction, HCG Team will update design drawings to reflect as-built conditions
and issue record drawings. Record drawings shall be based on redline markup drawings provided by construction
contractor and inspector. HCG will not perform on-site inspections or surveys to validate as-built conditions.
Hilts Consulting Group 4-9 Page 333
Carlsbad Municipal Water District
Maerkle Reservoir Floating Cover Replacement, Project No. 5036
SECTION 4 -PROJECT
UNDERSTANDING
Deliverable shall be (1) Mylar set of D-sheet record drawings and electronic pdf copy of record drawings on USB
memory stick.
Assumptions & Exclusions:
This proposal is based on the following assumptions:
• Preparation and certification of project environmental documents will be performed by others.
• Environmental engineering services and environmental monitoring, as required, will be
performed by others.
• Geotechnical engineering is not included.
• Photovoltaic system on the floating is limited to feasibility as stated in the 30% preliminary design
report. Proposal does not include complete photovoltaic system design.
• CFD modeling is not included in scope of work. Location of mixers shall be based on logical, best
practice engineering judgment.
• Construction management services are not included and shall be performed by others.
• Construction inspection services are not included.
• Discharge of floating cover rainwater will be under CMWD's existing NPDES permit.
• Permitting and plan check fees, if applicable, are not included.
Hilts Consulting Group 4-10 Page 334
w /ting
up,lnc.
Scope ofWork Tasks
Task 1 -Project Management
Task 2 - Field Reconnaissance, Data Collection, and Utility Search
Task 3 -Surveying and Mapping
Task 4 -Geotechnical Investigation (Not Used)
Task 5 -Legal Descriptions and Plats (Not Used}
Task 6 -30% Design Submittal
Task 7 -Construction Drawings
Tasl< 8 -Specifications
Task 9 -Project Cost Estimates
h"ask 10 -Permitting
Task 11-Bidding Phase Services
Task 12 -Construction Phase Services
Subtotals {Hours by Classifications)
Subtotals (Hours by Subconsultants)
Subtotals (Fees by Classifications)
Reimbursibles
10% Subconsultant Markup
Subtotals (Fees by Consultant)
PROPOSAL TOTAL
4/17/2017
Carlsbad Municipal Water District
Maerkel Reservoir Floating Cover Replacement Project
Professional Services Detail
Hilts Consulting Group Kleinfelder
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$98,400 $259,200 $85,445 $27,105 $13,330 $19,065 $40,560 $40,250 $3,440 $2,184
$12,520 $742
$21,716
$477,281 $146,676
$694,440
l carlsbad
Municipal Water District
Righ of Way Engineering Services Moraes I Pham
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$13,940 $3,135 $560 $26,250 $12,180 $5,978
$8,140 $300 $21,702
$21,716
$25,775 $44,708 Page 335