Date: 8/20/2026 Page 1 of 2
PROJECT DESCRIPTION:
PROJECT NO: 2022-14 PURCHASE ORDER NO: P24274
JL NO: 77190224 (8.59%),
77190120 (47.51%),
77190243 (43.91%)
CONTRACTOR: Copp Contracting, Inc. Note: after funds 224, 243 are exhausted, charge to fund 120
DESCRIPTION OF CHANGES AND/OR EXTRA WORK: Additional Fill Material & Installation, for Chase Dr. Two & One 5 hr. Workdays
ITEM U/M QUANTITY UNIT PRICE TOTAL
S-7 CY 135.00 $179.00 $24,165.00
S-7.1 TN 27.28 $289.00 $7,883.92
S-7.2 TN -44.69 $155.00 -$6,926.95
S-7.3 TN 38.70 $289.00 $11,184.30
S-7.4 TN 14.00 $155.00 $2,170.00
S-7.5 EA -1.00 $3,600.00 -$3,600.00
S-7.6 LS -0.20 $10,000.00 -$2,000.00
S-7.7 SF -18.00 $10.72 -$192.96
S-7.8 SF 32.00 $10.00 $320.00
S-7.9 LF -4.00 $38.15 -$152.60
S-7.10 EA -1.00 $10,500.00 -$10,500.00
S-7.11 SF -156.00 $11.50 -$1,794.00
S-7.12 EA -1.00 $1,050.00 -$1,050.00
S-7.13 EA 2.00 $1,500.00 $3,000.00
S-7.14 EA 1.00 $450.00 $450.00
S-7.15 LS -1.00 $6,500.00 -$6,500.00
S-7.16 LF 60.00 $38.00 $2,280.00
S-7.17 LS 1.00 $2,690.88 $2,690.88
TOTAL ESTIMATED PRICE FOR THIS CHANGE ORDER: $21,427.59
DESCRIPTION
BID ITEM No. 10 - Unclassified Excavation
BID ITEM No. 14 - Construct 6" Full Depth AC Pavement C2- BID ITEM No. 25 - Provide and Install Street Lights Pull Boxes Per City of Corona Std. Plan 505
CCO for Pole Base Bolt Adjustment and PCC Cancellation
BID ITEM No. 12 - Construct 5" Full Depth AC Pavement C2- PG 70-10 AC Surface Course.
BID ITEM No. 16 - Protect Existing Palm Tree in place and Construct Porous Tree Well per City Standard 703.
BID ITEM No. 22 - Construct New 6" PCC Curb Gutter Over 95% Compacted Native Per City of Corona Standard Plan
135
BID ITEM No. 29 - Traffic Signing and Striping
BID ITEM No. 13 - Construct 6" Aggregate Base.
BID ITEM No. 21 Construct New PCC Sidewalk Over 95%
Compacted Native Per City of Corona Std. Plan 112. -
Corona STD Plan No. 142. Overage PAID With Inv. No. 3,
Check No. 00698108, 8/13/2026
BID ITEM NO. 26 Adjust Water Valve to Grade. Overage
PAID With Inv. No. 3, Check No. 00698108, 8/13/2026
BID ITEM NO. 27 Adjust Pull Box Frame and Cover to
Grade. Overage PAID With Inv. No. 3, Check No. 00698108, 8/13/2026
This document shall become an amendment to the Contract and all provisions of the Contract will apply hereto. This Change Order constitutes a complete and final resolution of all claims of the Contract for additional time or additional compensation related to or affected by work that is the subject of this Change Order. Quantities of items other than Lump Sum are not to exceed the amounts indicated.
BID ITEM No. 19 - Construct New Residential Driveway
Over 95% Compacted Native Per Modified City of Corona
Standard Plan Number 128.
BID ITEM No. 23 - Provide and Install (LED) Street Lights Per City of Corona Std. Plan 500 & 502
BID ITEM No. 30 - , Trench and Install 2" Conduit and
CITY OF CORONA
The Contractor is hereby directed to make the herein described changes from the plans and specifications and/or perform the following described work not included in the Plans and Specifications for this project.
Sidewalk Gap Closure at East Chase Dr. and Smith Ave.
Public Works Department
(BALANCING) CONTRACT CHANGE ORDER NO. 6
Sidewalk Gap Closure at East Chase Dr. and Smith Ave.
BID ITEM No. 24 - Construct 6" Residential Driveway per Detail H, Sheet 4 (as shown on plans). Over 95%
Compacted Native Per City of Corona Standard Plan
Number 128.
BID ITEM No. 15 - Construct 8" Aggregate Base.
BID ITEM No. 18 - Grading
Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Date: 8/20/2026 Page 2 of 2
JUSTIFICATION: (Be specific on each item. Attach supporting documents as necessary) CCO # %* Date Approved
1 0.57%
2 0.27%
3 2.65%
4 1.74%
5 4.29%
6 3.76%
Total 13.3%
$570,464.00 $646,137.82
1/21/2026 Original Completion Date: 4/3/2026 Revised Completion Date: 7/23/2026 AUTHORIZATION BY CITY:
Recommended for approval by:
Date: __________
Gerardo Sanabria, Project Manager
Approved by:
Date: __________
Keegan Olds, P.E., CIP Supervisor
ACCEPTANCE BY CONTRACTOR:
Accepted by:_________________________________________________Title: ____________________________ Hailey Copp, Project Manager
Signature: _________________________________________________Date: ____________________________ Accepted by:_________________________________________________Title: ____________________________ Ezekiel Copp, President
Signature: _________________________________________________Date: ____________________________
CONTRACT VARIANCE SUMMARY
Justification for Item(s) No. S-7 Design Engineer under-estimated the pavement excavations, as referred to in the attached RFI No.3. S7.1, S-7.3, and S-7.4 were increases in AC Pavement segments at Chase Dr/Gilbert Ave. and Smith Ave. necessary to allow a proper transition to the existing AC Pavement surface. Items: S-7.2, S-7.5, S-7.6, S-7.7, S-7.9, S-7.10, S-7.11, S-7.12, S-7.15 are various construction items that were not constructed or installed per the planned estimates and City changes. Items: S-7.8/7.8.1, S-7.13/7-13.1, and S-7.14/7.14.1 are overages that were compensated to contractor with payment to their Invoice No. 3, and thus are credited on this Balancing Contract Change Order No. 6. Item S-7.16 was necessary to relocate a street light due to an objection from the resident at 2852 Thacker Dr (the light would block his view from his 2nd-floor window). Item S-7.17 is a claim by the subcontractor for the cancellation of a short load of concrete (PCC) and the cost to revise the bolt circle for the streetlight foundation of streetlights. For S-7.17's justification, refer to(Response to Ferreira’s CCO #2).
Revised Contract Amount
$1,512.00
$15,094.80
__________________________________
__________________________________
Original Contract Amount
$3,256.06
$75,673.82
0 2.625
0 1.625
Amount Time
We, the undersigned Contractor, have given careful consideration to the above described changes and/or extra work and hereby agree that said work is the subject of this Change Order. Quantities of items other than Lump Sum are not to exceed the amounts indicated. 2 $21,427.59
$24,464.63
Date Started:
1.25 $9,918.74
Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF 8/20/2026
Hailey Copp Hailey Copp, Project Manager
8/20/2026
Ezekiel Copp, President
8/24/2026
8/24/2026
Sidewalk Gap Closure at Chase Drive and
Smith Avenue – Project No. ST-2022-14
SUPPORT FOR
BALANCING CHANGE ORDER NO. 6
Justification No. S-7
RFI NO. 3, BID ITEM No. 10, Unclassified
Excavation – 135 CY Overage, Slot Patch,
Chase Drive
Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF RESPONSE TO RFI NO. 3
Sidewalk Gap Closure at Chase Drive and Smith Avenue – Project No. ST-2022-14 TO: City of Corona – Attn: Gerardo Sanabria, Associate Engineer RE: RFI #3 – Excavation Quantities, submitted by Copp Contracting, Inc., dated June 26, 2026 SUBJECT: Unclassified Excavation – 135 CY Overage, Slot Patch, Chase Drive RFI:
The actual excavation quantities on this project resulted in a 135 CY overage. May we please request the slot patch on Chase Dr. be reevaluated? From our review, it seems the contract quantity may not include the cubic yards allowed for the depth of the 11-inch section.
RESPONSE:
Onward Engineering has reviewed Copp Contracting's RFI #3 regarding the Unclassified Excavation quantity for the Sidewalk Gap Closure project along Chase Drive and Smith Avenue, including the design plans and field conditions at the slot patch area.
Field conditions along combined with the full-depth AC pavement excavation required at the slot patch area, results in an Unclassified Excavation quantity beyond the 280 CY reflected in the bid documents. Based on this review, Onward Engineering confirms a total Unclassified Excavation quantity of 420 CY for this work, consistent with the 135 CY overage identified in Copp Contracting's RFI.
Per the Contract Special Provisions, payment for Unclassified Excavation (including sawcutting, excavation, and removal of existing driveways, sidewalk, and pavement) is made on a cubic yard basis at the Contract unit price, with no additional compensation allowed beyond that unit price. Because the quantity overages put as at more than 125%, a lower unit price for all quantities over 125% may apply at the City’s discretion.
Onward Engineering recommends the City process the confirmed additional quantity of 135 CY as a quantity adjustment at the applicable Contract unit price or negotiated price, subject to the City's review and approval, and upon the Contractor's submission of field-measured quantities/documentation supporting the actual excavation performed.
ANSWERED BY: Muhammad Ataya, MPA – VP & Operations Manager, Onward Engineering DATE: July 17, 2026
__________________________
Signature
Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF 6751 Stanton Ave.
Buena Park, CA 90621
Office: 714-522-7754
Fax: 714-522-2074
[email protected]
Contractor’s License No. 384209A www.coppcontracting.com June 26, 2026
City of Corona
Attn: Gerardo Sanabria, Associate Engineer
400 S. Vicentia Ave.
Corona, CA 92882
RE: RFI #3 Excavation Quantities - Sidewalk Gap Closure at Chase Drive and Smith Avenue, Project No. ST-2022-14
Gerardo,
The actual excavation quantities on this project resulted in a 135 CY overage. May we please request the slot patch on Chase Dr. be reevaluated? From our review, it seems the contract quantity may not include the cubic yards allowed for the depth of the 11-inch section.
Sincerely,
Hailey Copp, Project Manager
[email protected]
Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Sidewalk Gap Closure at Chase Drive and
Smith Avenue – Project No. ST-2022-14
SUPPORT FOR
BALANCING CHANGE ORDER NO. 6
Justification No. S-7.13
Response to Ferreira’s CCO#2
Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF Docusign Envelope ID: B3E45A15-3AAE-85A9-83FD-90FF8276E2CF