17542 E. 17th Street, Suite 200, Tustin, CA 92780 714.665.4500 fax 714.665.4501
August 5, 2025
Kimberly Young
Senior Civil Engineer
City of Fontana
8353 Sierra Avenue
Fontana, CA 92335
Subject: San Sevaine Bicycle Trail
Additional Construction Engineering Support Services
Dear Ms. Young:
The San Sevaine bicycle trail is under construction and work outside of our previously identified construction services contract has been requested and performed. Per direction from the City’s construction manager, Robert Eisenbeisz, we have directed portions of our existing contract budget to these new requested items. This letter will outline the additional work requested and is presented in the order that our original construction engineering support letter used.
A. Construction Engineering Support Services
The City has requested meetings during construction with the design team which are held virtually.
The original contract included an estimate of 4 hours per month (56 hours total) however, the actual time is likely 8 hours per month (90 hours total) among several attendees, giving a difference of 34 hours.
Project management hours were estimated at 2 hours per month (total 28 hours) however, the actual time is likely 2 hours per week (120 hours total), giving a difference of 92 hours. The original estimate of 2 hours per month was exceeded due to the number of unknown issues that arose and the time involved to manage their resolution.
Additionally, the City recently requested the design team be present at as many weekly field construction meetings as possible during the wall construction and reduce to monthly thereafter.
The original budget identified 4 onsite field visits for a total of 32 hours, however, the actual time to date is 72 hours with an additional 8 hours anticipated for future meetings for a total of 80 hours, giving a difference of 48 hours. On-site field meetings were not originally anticipated.
The total additional estimated is 174 hours for meetings and project management beyond what was originally estimated. Cost $39,520
17542 E. 17th Street, Suite 200, Tustin, CA 92780 714.665.4500 fax 714.665.4501
B. Civil, Landscape, Lighting and Traffic – Shop Drawing Submittal Review & Bid Support
There has been no extra work related to this item.
C. Civil, Landscape, Lighting and Traffic – RFI Review and Response
Some RFIs have been submitted by the contractor resulting in effort to coordinate and determine the appropriate responses. Those described below are those that were not anticipated or took additional steps for resolution beyond what was originally considered in our budget.
RFI 4 – Victoria signal pole and survey – There were misunderstandings/miscommunication from the contractor regarding interpretation of staking for the signal pole location. The team spent additional time triple-checking the staking to prove ultimately that it had been correctly staked from the beginning. Time was spent coordinating between the contractor, surveyor, and City. Cost $957
RFI 8 – A light pole foundation was redesigned due to conflicting under-surface boulder. Cost $4,974
RFI 12 – New Victoria RV frontage was developed during the project bidding. The contractor requested clarification of new design adapted to frontage improvements. Cost $696
RFI 18 - Storm Drain along walls R7A and R6A – The contractor discovered an existing storm drain that was in the location to cross the walls R7A and R6A. It was determined the storm drain was in a significantly different horizontal location than the record as-built indicated. Pile #1 on Retaining Wall R7A was eliminated, and a portion of the wall was redesigned to avoid encroachment on the storm drain below. Additionally, Pile #3 on Retaining Wall R6A was shifted 1.5 feet to accommodate the revised pipe location. These modifications were made to ensure proper clearance and prevent interference with existing underground utilities. Cost $5,655
RFI 19 - Storm Drain along wall R7B (diaphragm wall) – The contractor found a Caltrans 24” storm pipe that ran under the proposed wall/trail, discharging through the channel liner. This pipe was not shown in project base mapping and no vertical profile record as-built could be located. It was determined the top of pipe would be more than a foot above proposed trail surface. The Contractor built Wall R6B starting at the south end up to about 5.5 feet south of the pipe crossing and work on Wall R7B did not start until after it was confirmed that relocated pipe would not go under or penetrate the wall. Numerous potential solutions were identified and vetted. Since as-builts and previous drainage reports were not available, our work also included hydrologic/hydraulic analysis.
Cost $7,483
Items not identified as RFIs included:
Mitigation Design for Protected Habitat at North End of Project – Revisions were made to lighting and fencing plan. Coordination was performed for plan review. Cost $3,018
17542 E. 17th Street, Suite 200, Tustin, CA 92780 714.665.4500 fax 714.665.4501
D. Structural Retaining Wall – Shop Drawing Submittal Review
There has been no extra work related to this item.
E. Structural Retaining Wall – RFI Review and Response
RFI 17 – Sanitary sewer location at SR 210 – The contractor found an existing encased sanitary sewer line parallel to the trail that would potentially conflict with proposed walls as it was under the bottom of the wall. While it was a known line, the actual alignment differed from the record as- builts. Field survey indicated the sewer had a significant bow such that the steel casing was found to be at a higher elevation, which required us to redesign portions of the wall by moving the bottom of the wall and second row of ground anchors and shotcrete up by one foot. Analysis of the survey data by the civil and structural designers identified the conflicts, and revised wall plans were developed. This required coordination with the contractor, resident engineer, surveyors, and design team. Cost $7,988
CMU wall near Station 17 - During the construction of the CMU wall, the wall subcontractor initially submitted footing elevations that did not align with the actual site topography. To address this discrepancy, an additional survey was conducted to accurately capture the topography and confirm the location of an adjacent County-owned drainage riser. To ensure proper drainage functionality, multiple design alternatives were evaluated, including various wall types, grading modifications, fencing options, and adjustments to the wall and trail alignment. After thorough analysis, it was determined the best course of action was to change the original wall type from Type 6A to Type 6B and to change the alignment to avoid the conflict between the footing and the existing riser pipe. Additionally, a standard Greenbook detail, typically accepted without additional calculations, was unexpectedly rejected by the City's building department, requiring further engineering review and adjustments to validate a standard detail. The additional work, including surveying, design evaluations, coordination efforts, structural calculations, and required compliance adjustments resulted in extra costs. The original design conflicted with an existing storm drain riser, requiring a change from Type A to Type B. Cost $10,048
Storm Drain along wall R1A – Our team designed the first part of this wall to change it from soldier pile to a gravity retaining wall to avoid further damaging the utility below. Additionally, a concrete culvert was damaged during the installation of the first pile. We developed a remediation to the damaged culvert. Cost $2,500
F. Structural Retaining Wall – Field Services/Inspection
Caltrans required source inspections to be performed. We brought ZT Consulting onto the team to perform this work. The work included preparation of the SIQMP , QA sampling and verification testing for high strength bar/strands and bearing plates for the ground anchors, CWI source inspection for steel assembly for the ground anchors, and coating inspection by NACE2 for the cleaning and painting of piles for the soldier piles. The estimate for this work was $62,896.56.
Subsequently, ZT Consulting was requested to perform CWI inspection for stud welding and
17542 E. 17th Street, Suite 200, Tustin, CA 92780 714.665.4500 fax 714.665.4501
coating inspection by NACE2 for field painting for the soldier piles. This estimate was $15,398.97, giving a total of $78,295.53 for the source inspection task.
G. Additional As-Built / Record Drawing
No out-of-scope work is expected for this task.
H. Geotechnical Field Services and Laboratory Testing
The majority of work by Converse has been within Caltrans right-of-way however, they have and continue to provide necessary services outside of the Caltrans right-of-way. Their original budget was $71,820. Through July 4, 2025, field services, laboratory testing and office support costs have exceeded the original contract amount by $258,804 (total cost being $330,624). Additionally, Converse has estimated the cost to continue their services through construction completion will be $35,260. The total additional cost for geotechnical related services is therefore estimated at $294,064. Details of Converse’s tasks are included in their letter attached.
I. Construction Survey
No out-of-scope work is expected for this task.
J. Interpretive Signage (New Task)
Per a letter from DEA to the City dated September 18, 2024, this task included the addition of interpretive signs related to the San Bernardino Kangaroo Rat. The estimated cost of this additional work was identified as $17,605.
SUMMARY
The table below summarizes the anticipated costs of the above-described work.
Summary of Extra Work Cost
Task Est Value of
Extra Work
A. Construction Engineering Support Services $ 39.520.00 C. Civil, Landscape, Lighting and Traffic – RFI Review and Response $ 22,783.00 E. Structural Retaining Wall – RFI Review and Response $ 20,536.00 F . Structural Retaining Wall – Field Services / Inspection $ 78,296.00 H. Geotechnical Field Services and Laboratory Testing $ 250,198.00 J. Interpretive Signage $ 3,000.00
TOTAL $ 550,304.00
Some of the above-described work has been invoiced to the City using the original budget. Given the project is nearing construction completion, much of the above-described extra work was
17542 E. 17th Street, Suite 200, Tustin, CA 92780 714.665.4500 fax 714.665.4501
invoiced using the original contracted budget. We have estimated the cost to complete the remaining work from today’s date forward as shown in the table below.
Summary of Cost to Complete
Task Est. Cost to
Complete
A Construction Engineering Support $8.000.00
B Civil, Landscape, Traffic Shop Drawing & Submittal
Review
$2,000.00
C Civil, Landscape, Traffic RFI Review & Response $2,000.00 D Structural Retaining Wall Shope Drawing & Submittal
Review
$0.00
E Structural Retaining Wall RFI Review and Response $2,000.00 F Structural Retaining Wall Field Services/Inspection $8,245.00 G As-Built Record Drawings $39,480.00
H Geotechnical Field Services and Laboratory Testing $35,260.00 I Construction Survey $15,000.00
J Interpretive Signage $3,000.00
TOTAL $114,985.00
Based on the above cost to complete, we have revised the first table (summary of extra work cost) to be as follows:
Amendment Request by Task
Task Revised
Amendment
Request
A Construction Engineering Support $8.000.00
B Civil, Landscape, Traffic Shop Drawing & Submittal
Review
$2,000.00
C Civil, Landscape, Traffic RFI Review & Response $2,000.00 D Structural Retaining Wall Shope Drawing & Submittal
Review
$0.00
E Structural Retaining Wall RFI Review and Response $2,000.00 F Structural Retaining Wall Field Services/Inspection $100,005.63 G As-Built Record Drawings $12,132.75
H Geotechnical Field Services and Laboratory Testing $250,198.00 I Construction Survey $0.00
J Interpretive Signage $3,000.00
REQUESTED AMENDMENT AMOUNT $379,336.38
With a total cost to date of $934,470.38, of which $657,721.90 has been invoiced, and a projected cost to complete of $114,985.00, the total contract amount is projected to be $1,049,455.38. The original contract authorized amount for construction management services was $670,119.00. The requested addendum is $379,336.38.
17542 E. 17th Street, Suite 200, Tustin, CA 92780 714.665.4500 fax 714.665.4501
We look forward to continuing to assist the City of Fontana toward the successful construction completion of the project. If you have any questions on the above, please let me know.
Sincerely,
Marie Marston, P .E.
Project Manager
Attachments:
ZTC Estimate Tables
Converse Extra Request Letter
DEA Letter for Interpretive Signing
Source Inspection Estiatme for San Sevaine ZTC ID: 24-S455 Item No. Item Description Sub. Items Inspection Type Inspection Hours
Approx.
Testing
Budget
Testing
Components
Prob. Source
Location **
Estimated
Travel
Hours
Approx.
Travel
Budget
Engineering
Hours Engineering Function Approx. Cost
per Item
High Strength
Bar/Strands
QA Sampling &
Verification Testing 32 $ 600 High Strength
Bar/Strands
California or
Colorado 32 $ 2,400 8 Submittal Review - Fabrication support $ 14,228.41
Bearing Plates QA Sampling &
Verification Testing 8 $ 500 Casted Coupon California or Colorado 8 $ 1,600 8 Submittal Review - Fabrication support $ 6,270.55
Steel Assembly CWI Source inspection 24 $ - N/A California 0 $ 600 8 Submittal Review - Fabrication support $ 5,946.86
Soldier Piles:
Varying lengths: 2'-11" to
44'-0"
I-15 Retaining Walls:
R1A: QTY:15
R1C: QTY: 18
SR-2210 Retaining Walls:
R6A: QTY: 8
R7A: QTY: 4
R8: QTY: 16
Clean and Paint Piles Coating Inspection by
NACE 2 80 $ - - Caifornia 0 $ 600.00 16 PQWP review, pre-paint meeting,
inspection coordination, report
review
$ 15,998.97
12 N/A 0 $ - N/A N/A 0 $ - 30 Submitting SIQMP to Caltrans and
responding to comments + 2
Addendums
$ 6,817.25
N/A 0 $ - N/A N/A 0 $ - 24 Misc. SMR work for average of 2 hour per month $ 5,453.80
N/A 0 $ - N/A N/A 0 $ - 24 Preparing monthly SIQMP report for
duration of the project average 2
hours per month
$ 5,453.80
N/A 0 $ - N/A N/A 0 $ - 12 Caltrans Quarterly IQA audits - 4 hours for duration of each audit $ 2,726.90
144 40 130
$ 21,173.58 $ 1,100 $ 5,881.55 $ 5,200 $ 29,541.42 227.24 $/hr
147.04 $/hr
*
**
Source Inspection Scope *
Material source location will be set by the Prime Contractor and their subs.
Caltrans METS quarterly IQA audit and response to audit ZTC Hourly Rate
Engineering Average Regular hourly rate
Source Inspection Average Regularly hourly rate
Total Hours
These cost estimates are not intended to be lump sums or guaranteed costs.
Total Cost
Based on regular rate $ 62,896.56 Total Cost
Ground Anchors
Various Heights: 10.2' to
13.1'
I-15 Retaining Walls:
R1B: QTY: 37
SR-210 Retaining Walls:
R7: QTY: 53
Caltrans Monthly SIQMP Summary Report
SIQMP Preperation and Approval, Revisions, and Addendums SIQMP Engineering Works For Months Duration
Typical SMR work such as response ding to QAF-3101 and issuing 28/608 forms during the course of project, Resolving NCRs, attend construction meeting, etc.
SIQMP Estimate 1 8/26/2024
Source Inspection Estiatme for San Sevaine ZTC ID: 24-S455 Item No. Item Description Sub. Items Inspection Type Inspection Hours
Approx.
Testing
Budget
Testing
Components
Prob. Source
Location **
Estimated
Travel
Hours
Approx.
Travel
Budget
Engineering
Hours Engineering Function Approx. Cost
per Item
Stud Welding CWI Inspection 40 $ - - Jobsite 0 $ - 8 Pre-weld meeting, inspection coordination, report review $ 7,699.48
Field Painting Coating Inspection by
NACE 2 40 $ - - Jobsite 0 $ - 8 PQWP review, pre-paint meeting,
inspection coordination, report
review
$ 7,699.48
12 N/A 0 $ - N/A N/A 0 $ - 0 Submitting SIQMP to Caltrans and
responding to comments + 2
Addendums
$ -
N/A 0 $ - N/A N/A 0 $ - 0 Misc. SMR work for average of 2 hour per month $ -
N/A 0 $ - N/A N/A 0 $ - 0
Preparing monthly SIQMP report
for duration of the project average
2 hours per month
$ -
N/A 0 $ - N/A N/A 0 $ - 0 Caltrans Quarterly IQA audits - 4 hours for duration of each audit $ - 80 0 16
$ 11,763.10 $ - $ - $ - $ 3,635.87 227.24 $/hr
147.04 $/hr
*
**
SIQMP Preperation and Approval, Revisions, and Addendums SIQMP Engineering Works For
Soldier Piles
Months Duration
Typical SMR work such as response ding to QAF-3101 and issuing 28/608 forms during the course of project, Resolving NCRs, attend construction meeting, etc.
Source Inspection Scope *
Material source location will be set by the Prime Contractor and their subs.
Caltrans METS quarterly IQA audit and response to audit ZTC Hourly Rate
Engineering Average Regular hourly rate
Source Inspection Average Regularly hourly rate
Total Hours
These cost estimates are not intended to be lump sums or guaranteed costs.
Total Cost
Based on regular rate $ 15,398.97 Total Cost
Caltrans Monthly SIQMP Summary Report
SIQMP Estimate 1 12/9/2024
Converse Consultants
Geotechnical Engineering, Environmental & Groundwater Science, Inspection & Testing Services
2021 Rancho Drive, Suite 1, Redlands CA 92373
Telephone: (909) 796-0544 ♦ Facsimile: (909) 796-7675 ♦ www.converseconsultants.com
Revised July 8, 2025
Mr. Alejandro Virgen, EIT
Bridge & Structure
David Evans and Associates (DEA)
2100 South River Parkway
Portland, OR 97201
Subject: REVISED CHANGE ORDER REQUEST TO CONTINUE PROVIDING
GEOTECHNICAL AND MATERIAL TESTING SERVICES DURING
CONSTRUCTION
San Sevaine Bike Trail, Phase 1- Pacific Electric (PE) Trail to Banyan Street Cities of Fontana and Rancho Cucamonga, San Bernardino County, CA Converse Project No. 16-81-232-00 (30)
Dear Mr. Virgen:
This revised change order supersedes our last change order submitted on May 22, 2025.
As part of DEA’s team Converse Consultants (Converse) has been providing geotechnical and material testing services during the construction of the San Sevaine Bike Trail, Phase 1 from Pacific Electric Trail to Banyan Street.
Based on our revised proposal dated November 20, 2023, Converse was issued a contract by DEA on June 6, 2024, in the amount of $71,820.00. The original scope primarily included on-call geotechnical inspections for the retaining walls located within the Caltrans right-of- way (see scope of work below). Subsequently, on or around September of 2024, the jurisdiction’s representative requested an expansion of the scope to include material testing and geotechnical inspections for the entire project, both within and outside of the Caltrans right-of-way. Additionally, it was requested that Converse provide full-time on-site support for the duration of construction. These expanded responsibilities are reflected in the scope of work hours versus the allocated budget, as shown below.
The cost summary and breakdown from our revised November 20, 2023 proposal is presented below.
Cost Summary
Item Cost
Field Services Costs $52,800.00
Laboratory Testing Costs $4,380.00
Office Support Costs $14,640.00
TOTAL $71,820.00
Revised Change Order Request to Continue Providing Geotechnical & Material Testing Services During Construction San Sevaine Bike Trail, Phase 1- Pacific Electric (PE) Trail to Banyan Street Cities of Fontana and Rancho Cucamonga, San Bernardino County, CA November 22, 2024
Revised April 2, 2025
Revised April 11, 2025
Revised April 22, 2025
Revised May 22, 2025
Revised July 8, 2025
Converse Consultants
M:\JOBFILE\2010-2019\2016\81\16-81-232 DEA, San Savine Bike & Pedestrian Trail\Proposal\16-81-232_r-4CO(30)DEA-)trail The breakdown of our scope and cost showing the proposed and actual hours and cost up to July 4, 2025, is presented in the table below.
Field Services Costs
Service Type Proposed
Units (Hrs.)
Proposed
Cost
Expended
(Hrs.)
Expended
Cost Difference
Observe installation of
drilled shaft and
ground anchors
100 $15,000.00 369 $55,350.00 $40,350.00
Observe construction
of diaphragm wall 100 $15,000.00 20 $3,000.00 $12,000.00 Observe pull test of
ground anchors 32 $4,800.00 0 $0.00 $4,800.00
Observe fill placement
and take in-place
density test
76 $11,400.00 664.5 $99,675.00 $88,275.00
Aggregate base and
asphalt concrete 4 $600.00 4 $600.00 $0.00
Test quality of fresh
concrete & make
cylinders
40 $6,000.00 418 $62,700.00 $56,700.00
Observe Placement of
Rebar 0 $0.00 46 $6,900.00 $6,900.00
Sample Pick-Up 0 $0.00 146.6 $7,330.00 $7,330.00
Shoring/Lagging
Inspection 0 $0.00 150 $22,500.00 $22,500.00
Field Services Cost Total $52,800.00 - $258,055.00 $205,255.00
Laboratory Testing Costs
Type of Tests
Proposed
No. of
Tests
Proposed
Cost
Actual
No. of
Tests
Actual
Cost Difference
Modified proctor for optimum
moisture and density (soil
sample)
8 $1,520.00 1 $190.00 $1,330.00
Modified proctor for optimum
moisture and density (aggregate
base sample)
2 $400.00 1 $200.00 $200.00
Compressive Strength Tests of
Concrete Cylinder 40 $1,800.00 324 $14,580.00 $12,780.00 Hveem test of asphalt concrete 3 $660.00 0 $0.00 $660.00 Laboratory Testing Cost Total $4,380.00 - $14,970.00 $10,590.00
Revised Change Order Request to Continue Providing Geotechnical & Material Testing Services During Construction San Sevaine Bike Trail, Phase 1- Pacific Electric (PE) Trail to Banyan Street Cities of Fontana and Rancho Cucamonga, San Bernardino County, CA November 22, 2024
Revised April 2, 2025
Revised April 11, 2025
Revised April 22, 2025
Revised May 22, 2025
Revised July 8, 2025
Converse Consultants
M:\JOBFILE\2010-2019\2016\81\16-81-232 DEA, San Savine Bike & Pedestrian Trail\Proposal\16-81-232_r-4CO(30)DEA-)trail Office Support Costs
Type of Activity
Proposed
Units (Hrs. &
Lump Sum)
Proposed
Cost
Expended No.
of Units (Hrs. &
Lump Sum)
Expended
Cost Difference
Office support 40 Hrs. $3,000.00 232.9 $17,467.50 $14,467.50 Staff Professional
(Includes Field
Anchor Testing)
0 Hrs. $0.00 94.5 $13,230.00 $13,230.00
Project Manager 32 Hrs. $5,440.00 8.8 $1,496.00 $3,944.00 Project
Professional 0 Hrs. $0.00 77.5 $12,400.00 $12,400.00
Principal
Professional 20 Hrs. $4,200.00 60.5 $12,705.00 $8,505.00 Project
Consultant 0 Hrs. $0.00 3 $300.00 $300.00
Density test
results report
preparation (if
needed)
1 Lump Sum $2,000.00 0 $0.00 $2,000.00
Office Support Cost Total $14,640.00 - $57,598.50 $42,958.50
Total Overage Summary as of July 4, 2025
Services Costs
Field Services Cost Overage $205,255.00
Laboratory Testing Cost Overage $10,590.00
Office Support Cost Overage $42,958.50
Total Cost Overage $258,803.50
SCOPE OF WORK AND FEE ESTIMATE TO PROJECT COMPLETION
Per Mr. Robert Eisenbeisz’s e-mail dated July 1, 2025, the following services will be required before project completion:
Wall R6 (Footing Pour, Rebar/Wall Pour
Retaining Curb/Wall at R1C By-Pass
LDCC Backfill at Wall R6
Finish Grading/Compaction
PCC Gutter at Top of Walls
Slope Paving at SR 210
AC Paving on Trail
Slurry Seal on Trail
Revised Change Order Request to Continue Providing Geotechnical & Material Testing Services During Construction San Sevaine Bike Trail, Phase 1- Pacific Electric (PE) Trail to Banyan Street Cities of Fontana and Rancho Cucamonga, San Bernardino County, CA November 22, 2024
Revised April 2, 2025
Revised April 11, 2025
Revised April 22, 2025
Revised May 22, 2025
Revised July 8, 2025
Converse Consultants
M:\JOBFILE\2010-2019\2016\81\16-81-232 DEA, San Savine Bike & Pedestrian Trail\Proposal\16-81-232_r-4CO(30)DEA-)trail Our estimated cost to provide services until project completion is presented in the tables below.
Field Services Costs (Project Completion)
Service Type Unit Total
Units Unit Rate Cost
Observe and/or test Soils, Concrete, Rebar and
Asphalt Hr. 160 $150.00 $24,000.00
Sample Pick-Up Hr. 16 $50.00 $800.00
Field Services Cost Total (Project Completion) $24,800.00
Laboratory Testing Costs (Project Completion)
Type of Tests Number
of Tests
Cost Per
Test Total Cost
Modified proctor for optimum moisture and density (soil sample) 2 $190.00 $380.00
Compressive Strength Tests of Concrete Cylinder 80 $45.00 $3,600.00 Hveem test of asphalt concrete 2 $220.00 $440.00
Laboratory Testing Cost Total (Project Completion) 4,420.00
Office Support Costs (Project Completion)
Type of Activity Unit Total
Units Unit Rate Total Cost
Office support Hr. 20 $75.00 $1,500.00
Project Professional Hr. 10 $160.00 $1,600.00
Principal Professional Hr. 4 $210.00 $2,100.00
Project Close-Out Report (if needed) Lump
Sum 1 $2,000.00 $840.00
Office Support Cost Total (Project Completion) $6,040.00
Cost Summary (Project Completion)
Services Cost
Field Services Costs $24,800.00
Laboratory Testing Costs $4,420.00
Office Support Costs $6,040.00
TOTAL (Project Completion) $35,260.00
Revised Change Order Request to Continue Providing Geotechnical & Material Testing Services During Construction San Sevaine Bike Trail, Phase 1- Pacific Electric (PE) Trail to Banyan Street Cities of Fontana and Rancho Cucamonga, San Bernardino County, CA November 22, 2024
Revised April 2, 2025
Revised April 11, 2025
Revised April 22, 2025
Revised May 22, 2025
Revised July 8, 2025
Converse Consultants
M:\JOBFILE\2010-2019\2016\81\16-81-232 DEA, San Savine Bike & Pedestrian Trail\Proposal\16-81-232_r-4CO(30)DEA-)trail
TOTAL CHANGE ORDER REQUEST
Item Amount
Overage Amount Up to July 4, 2025 $258,803.50
Costs to Provide Services to Project Completion $35,260.00 TOTAL CHANGE ORDER REQUEST COST $294,063.50
ASSUMPTIONS
In general, our fees are based on the following conditions and assumptions described below. The hours assigned to each task in the above tables are estimates. It may vary depending on the contractor’s schedule and sequencing of activities. Our services will be performed on a time-and-materials basis in accordance with the unit rates presented in the above table.
When full-time observation by a Converse representative is not required, the testing services described above will be performed on a test-results-only basis at the request of your authorized representative, who will be responsible for coordinating our services with the construction schedule. No comments regarding compaction procedures or observations will be made for test-results-only services. For on-call services, the test locations will be prepared and ready for testing by Converse field personnel upon their arrival at the site.
Work will be conducted during an 8-hour day at the site. Overtime will be charged at 1.5 times the regular hourly rate.
All requests for field service should be received by this office not less than one working day (24 hours) prior to the time the services are to be performed. There will be a 2-hour minimum charge in case of work cancellation after our field personnel have been dispatched.
There may be a 2-hour minimum charge if services are cancelled within 6 hours of the scheduled call out time.
There will be a 4-hour minimum call out time for inspections lasting less than 4 hours.
After 4-hours, time is charged as time on-site.
The contractor and/or client will be responsible for excavating and backfilling all test locations.
Our field representative will not direct, supervise or lay out the work of the contractor. Our services will not include a review of the contractor's safety measures on or near the job site.
If any additional inspection or laboratory testing is required, it will be performed in accordance with the attached Schedule of Fees.
Converse field reports will be provided to your authorized representative in the field daily as the testing is completed. The field reports will summarize test results and time charged per day, and document work performed.
Meetings and consultations not described above, which are requested by the client, are not included in the cost summary, but will be charged on a time-and-materials basis in accordance with the attached Schedule of Fees.
Should additional services be required other than those presented herein, we will discuss the matter with you. If requested, we will prepare a detailed proposal and cost estimate Revised Change Order Request to Continue Providing Geotechnical & Material Testing Services During Construction San Sevaine Bike Trail, Phase 1- Pacific Electric (PE) Trail to Banyan Street Cities of Fontana and Rancho Cucamonga, San Bernardino County, CA November 22, 2024
Revised April 2, 2025
Revised April 11, 2025
Revised April 22, 2025
Revised May 22, 2025
Revised July 8, 2025
Converse Consultants
M:\JOBFILE\2010-2019\2016\81\16-81-232 DEA, San Savine Bike & Pedestrian Trail\Proposal\16-81-232_r-4CO(30)DEA-)trail for such services. Additional services will not be performed without prior written authorization.
No services will be provided prior to our signature of an agreement with you. No additional work required will be provided without written authorization and a budget amendment from your authorized representative.
CLOSURE
Our services will be provided in accordance with generally accepted professional engineering and engineering geological principles and practice in this area of Southern California. Unless we are informed otherwise, we will assume that these conditions are acceptable to you.
This proposal will expire 60 days from its issuance, if not accepted at that time. Our billing rates are reviewed at the beginning of each year and are subject to adjustment.
Please sign 2 copies of the Acceptance of Agreement and Authorization to Proceed at the end of this proposal. Retain one copy of this proposal for your files and return one signed copy to our office to formally authorize our services.
We understand that this is a Prevailing Wage project as determined by the local Labor Code.
Special billing instructions, including backup documentation requirements, should be mutually agreed upon and indicated in the authorization. Subsequent additions or changes should be likewise mutually agreed upon and submitted in writing with appropriate authorization.
Converse has the resources to meet your project schedule. We will ensure that personnel with appropriate background and experience are assigned to this project. We will also ensure that all deliverables are submitted on schedule.
We appreciate the opportunity to be of service on this very important project. If you have any questions, or if we can provide any additional assistance, please call the undersigned at 909- 474-2847.
CONVERSE CONSULTANTS
Hashmi Quazi, PhD, PE, GE
Principal/Regional Manager
Dist.: 1/Addressee (e-mail)
Encl.: Schedule of Fees and General Conditions
HSQ/kvg/dne
Revised Change Order Request to Continue Providing Geotechnical & Material Testing Services During Construction San Sevaine Bike Trail, Phase 1- Pacific Electric (PE) Trail to Banyan Street Cities of Fontana and Rancho Cucamonga, San Bernardino County, CA November 22, 2024
Revised April 2, 2025
Revised April 11, 2025
Revised April 22, 2025
Revised May 22, 2025
Revised July 8, 2025
Converse Consultants
M:\JOBFILE\2010-2019\2016\81\16-81-232 DEA, San Savine Bike & Pedestrian Trail\Proposal\16-81-232_r-4CO(30)DEA-)trail
REVISED CHANGE ORDER REQUEST TO CONTINUE PROVIDING GEOTECHNICAL
AND MATERIAL TESTING SERVICES DURING CONSTRUCTION
San Sevaine Bike Trail, Phase 1- Pacific Electric (PE) Trail to Banyan Street
Cities of Fontana and Rancho Cucamonga, San Bernardino County, CA Converse Project No. 16-81-232-00 (30)
ACCEPTANCE OF AGREEMENT AND AUTHORIZATION TO PROCEED3
Firm Name: (Client) 1
By: (Print Name)
(Signature)
Title: Date:
Telephone No. ( ) Email:
P.O. No./Billing Instructions2:
1 Invoices to be sent to the Client, who shall be responsible for payment thereof, unless notified otherwise. The Client is represented by a person with authority to financially commit to the scope of work herein and acknowledges that the person signing has read and understands the enclosed General Conditions.
2 Billing requirements, including backup documentation, should be mutually agreed upon and indicated here. Subsequent additions or changes should likewise be mutually agreed upon and submitted in writing with appropriate authorization.
3 Converse has been informed by the Client that this is a prevailing wage project for geotechnical services as determined by local Labor Code Sections 1770-1780.
4141 E. Inland Empire Blvd., Suite 250, Ontario, CA 91764 T:( 909) 481-5750 F: (909) 481-5757
September 18, 2024
Robert Eisenbeisz
Kimberly Young, PE, Senior Civil Engineer
City of Fontana
8353 Sierra Ave.
Fontana, CA 92335
SUBJECT: LANDSCAPE ARCHITECTURAL SERVICES FOR THE DEVELOPMENT OF SAN
SEVAINE TRAIL INTERPRETIVE SIGNAGE
Dear Robert and Kimberly,
On behalf of David Evans and Associates, Inc. (DEA), we are pleased to provide you with a proposal for landscape architectural services for the development of interpretive signage (including text and graphics) to be placed near the future trailhead at Banyan Street. This information will be 'fabrication- ready' such that it can be provided to a sign manufacturer in order to fabricate the desired signage.
At this time, we anticipate preparing three total sign graphics at maximum dimensions of 24” x 18”. The first sign will include a colored plan view of the trailhead at Banyan Street (prepared as part of this scope) indicating the location of three unique interpretive signs with content that focuses on the San Bernardino Kangaroo Rat (SBKR). This first sign may include overview information about the SBKR such as its diet, reproduction and life span.
A second sign may include habitat information (Alluvial Floodplains, with an emphasis on Riversidean Alluvial Fan Sage Scrub plant community and associated flora species) and the SBKR’s conservation status (endangered). A third sign may highlight population trends, threats and context to the project site. We anticipate that these signs may be located at either end of the mitigation area and perhaps one at a mid-way point. No more than three mockup signs will be prepared for review by the City. The following summarizes the steps needed:
• Prepare Draft Text of Signage Content
• Prepare Draft Mock Signage Layout with Text and Im ages (Two Revisions Maximum)
• Prepare Final Signage Layout (One Revision Maximum )
• Provide Fabrication-Ready Artwork (High-Resolution Digital File Delivery)
o Exact location of signs shall be per already-prepa red civil plans (Delta 3 Set) for the project unless otherwise directed by the City. Sign manufacturer shall provide construction details for sign frame, installation, and attachment to the contractor for September 18, 2024
City of Fontana
Interpretive Signage for the SBKR
4141 E. Inland Empire Blvd., Suite 250, Ontario, CA 91764 T:( 909) 481-5750 F: (909) 481-5757 fabrication and installation. (DEA recommends utilizing Fossil Graphics or approved equal).
The interpretive signs may contain some or all of the following elements: text, maps, photographs, drawings, and if available historical information or photographs related to the mitigation area. Please note that in most instances, we will need to purchase a license to use photographs or other graphics such that we have included those anticipated fees in our reimbursable expenses.
Revisions and/or meetings beyond those stated above are subject to additional fee.
DEA proposes a fee of $16,805 in addition to $600 in reimbursables (estimate only). Invoices will be due and payable within 30 days and will be sent monthly based upon the percentage of work completed. Government fees, mileage, delivery costs such as Federal Express charges and plotting / reproduction services, and costs for online stock photos are considered reimbursable fees and will be billed to you at cost plus 15%. Any service requested which does not fall within the scope of services listed, or any duplication of work due to changes desired by the City, will be performed on an “Extra Services” basis and negotiated accordingly. This proposed fee shall be valid for 90 days from the date of this letter.
DEA would be pleased to assist the City of Fontana on this project and thank you once again for your consideration of our qualifications. We can begin the work immediately following an approved change order and a notice to proceed. We look forward to discussing this proposal with you.
DAVID EVANS AND ASSOCIATES, INC.
Kim S. Rhodes, L.A. 3867 Rachel Wells
Vice President Project Landscape Designer