ITEM 4. 22
CITY MANAGER' S REPORT
JUNE 09, 2025 CITY COUNCIL REGULAR MEETING
ITEM: ACCEPT PHASE 2 SEWER LIFT STATION B1 LOCATED
ON CALLERTON AVENUE ASSOCIATED WITH THE
SUBDIVISION IMPROVEMENT AGREEMENT FOR
TRACT 4155 FROM RIVER ISLANDS DEVELOPMENT
AREA 1, LLC
RECOMMENDATION: Adopt Resolution to Accept Phase 2 Sewer Lift Station B1 located on Callerton Avenue Associated
with the Subdivision Improvement Agreement for
Tract 4155 from River Islands Development Area 1,
LLC
SUMMARY:
River Islands Development Area 1, LLC ( River Islands), have completed the construction of the Phase 2 Sewer Lift Station B1 as required by the Subdivision Improvement Agreement ( SIA) for Tract 4155.
Staff has inspected the improvements listed in Attachment " C," and the City Engineer has deemed the work complete and in compliance with the approved plans and specifications. River Islands has provided a one- year warranty bond equal to 10% of the estimated construction costs, along with lien releases for the improvement proposed for acceptance. A vicinity map of the improvement is included as Attachment " B".
Staff recommends City Council accept the Phase 2 Sewer Lift Station B1 associated with the SIA for Tract 4155 listed in Attachment " C" by Resolution, included as Attachment " A".
BACKGROUND:
On June 14, 2021, the City Council adopted resolutions and ordinances approving the River Islands modified Phase 2 Project and Vesting Tentative Subdivision Map ( VTM) 6716. On November 14, 2022, City Council approved Tract 4149 West Village Large Lot Final Map ( LLFM) to create 34 undevelopable parcels. On December 20, 2023, the City of Lathrop Planning Commission approved the West Village Age Restricted Neighborhood Development Plan and Architectural Design Guidelines and Development Standards.
On September 11, 2023, City Council approved Final Map ( FM) Tract 4155, City of Lathrop Community Facilities District ( CFD) 2023- 1Annexation, and a SIA with River Islands. Pursuant to the SIA for Tract 4155, River Islands is required to install public improvements to convey wastewater from the West Village, Lake Harbor, and Paradise Cut Village Center Neighborhoods of River Islands Phase 2 ( Neighborhoods) to the City' sCombined Treatment Facility ( CTF).
CITY MANAGER' S REPORT PAGE 2
JUNE 09, 2025 CITY COUNCIL REGULAR MEETING
ACCEPT PHASE 2 SEWER LIFT STATION B1 LOCATED ON CALLERTON AVENUE
ASSOCIATED WITH THE SUBDIVISION IMPROVEMENT AGREEMENT FOR TRACT 4155 FROM RIVER ISLANDS DEVELOPMENT AREA 1, LLC
Staff has inspected the improvements listed in Attachment " C," and the City Engineer has deemed them complete and in compliance with the approved plans and specifications.
River Islands has submitted a one- year warranty bond equal to 10% of the estimated construction costs, along with lien releases for the improvements proposed for acceptance. Upon acceptance, the performance bond and labor & material bond will be released and replaced with the warranty bond. The bonds associated with the improvements proposed for acceptance are detailed in Table 1 below.
Table 1 — Bond Details
Performance Bond
Number/ Value
Labor and Material
Bond/ Value
Warranty Bond
Number/ Value
0799688 / $ 2, 074, 474 0799688 / $ 1, 037, 237 0799688- M / $348, 432. 60 REASON FOR RECOMMENDATION:
Staff has inspected the improvements listed in the attached GASB 34 Report and has confirmed that they have been completed in accordance with City specifications and deemed complete by the City Engineer.
River Islands has provided unconditional lien releases and a one- year maintenance bond for the completed improvements. Staff recommend that the City Council accept the public improvements listed in Attachment " C."
FISCAL IMPACT:
The City' s
maintenance costs for the Phase 2 Sewer Lift Station B1 are included in the operating budget for the CTF.
The one- year warranty bond covers any repairs or replacements that become necessary during the one- year period, beginning with the effective date of this acceptance, due to defective materials or workmanship in connection with the completed improvements.
CITY MANAGER' S REPORT PAGE 3
JUNE 09, 2025 CITY COUNCIL REGULAR MEETING
ACCEPT PHASE 2 SEWER LIFT STATION B1 LOCATED ON CALLERTON AVENUE
ASSOCIATED WITH THE SUBDIVISION IMPROVEMENT AGREEMENT FOR TRACT 4155 FROM RIVER ISLANDS DEVELOPMENT AREA 1, LLC
ATTACHMENTS:
A. Resolution to Accept Phase 2 Sewer Lift Station B1 Located on Callerton Avenue Associated with the Subdivision Improvement Agreement for Tract 4155 from River Islands Development Area 1, LLC
B. Vicinity Map
C. GASB 34 Reports - Phase 2 Sewer Lift Station B1
CITY MANAGER' S REPORT PAGE 4
JUNE 09, 2025 CITY COUNCIL REGULAR MEETING
ACCEPT PHASE 2 SEWER LIFT STATION B1 LOCATED ON CALLERTON AVENUE
ASSOCIATED WITH THE SUBDIVISION IMPROVEMENT AGREEMENT FOR TRACT 4155 FROM RIVER ISLANDS DEVELOPMENT AREA 1, LLC
APPROVALS:
Veronica Albarran
44( 09° 613
Date
Junior Engineer
O' / oa- labaCBrad aylor
City ngineer
6/ 2/a -S
Date
Thomas Hedegard Date
Deputy City Manager
Co, • Z.• Zoz, 5
Michael King Date
Assistant City Manager
Salvador Navarrete
City Attorney
1_025 --
Date
0•3•ZS
Step en J. Salvatore Date
City Manager
RESOLUTION NO. 25-
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF LATHROP TO ACCEPT PHASE 2 SEWER LIFT STATION B1 LOCATED ON CALLERTON AVENUE ASSOCIATED WITH THE SUBDIVISION IMPROVEMENT AGREEMENT FOR TRACT 4155 FROM RIVER ISLANDS DEVELOPMENT AREA 1, LLC
WHEREAS, on June 14, 2021, the City Council adopted resolutions and ordinances approving the River Islands modified Phase 2 Project and Vesting Tentative Subdivision Map ( VTM) 6716; and
WHEREAS, on November 14, 2022, City Council approved Tract 4149 West Village Large Lot Final Map ( LLFM) to create 34 undevelopable parcels; and WHEREAS, on December 20, 2023, the City of Lathrop Planning Commission approved the West Village Age Restricted Neighborhood Development Plan and Architectural Design Guidelines and Development Standards; and WHEREAS, on September 11, 2023, City Council approved Final Map ( FM) Tract 4155, City of Lathrop Community Facilities District ( CFD) 2023- 1Annexation, and a Subdivision Improvement Agreement ( SIA) with River Islands Development Area 1, LLC ( River Islands); and
WHEREAS, pursuant to the SIA for Tract 4155, River Islands is required to install public improvements to convey wastewater from the West Village, Lake Harbor, and Paradise Cut Village Center Neighborhoods of River Islands Phase 2 Neighborhoods) to the City' s
Combined Treatment Facility ( CTF). The sewer lift
station associated with this acceptance was completed and listed in Attachment " C" of the City Manager' sReport that accompanied this Resolution; and WHEREAS, River Islands has submitted a one- year warranty bond equal to 10% of the estimated construction costs, along with lien releases for the improvements proposed for acceptance. Upon acceptance, the performance bond and labor & material bond will be released and replaced with the warranty bond. The bonds associated with the improvements proposed for acceptance are detailed in Table 1 below.
Table 1 — Bond Details
Performance Bond
Number/ Value
Labor and Material
Bond/ Value
Warranty Bond
Number/ Value
0799688 / $ 2, 074, 474 0799688 / $ 1, 037, 237 0799688- M / $348, 432. 60 and
WHEREAS, the City' s
maintenance costs for the Phase 2 Sewer Lift Station B1 are included in the operating budget for the CTF. The one- year warranty bond covers any repairs or replacements that become necessary during the one- year period, beginning with the effective date of this acceptance, due to defective materials or workmanship in connection with the completed improvements.
NOW THEREFORE, BE IT RESOLVED, that the City Council of the City of Lathrop does hereby accept the Phase 2 Sewer Lift Station B1 located on Callerton Avenue associated with the Subdivision Improvements Agreement for Tract 4155 from River Islands Development Area 1, LLC.
The foregoing resolution was passed and adopted this 9th day of June 2025, by the following vote of the City Council, to wit:
AYES:
NOES:
ABSTAIN:
ABSENT:
Paul Akinjo, Mayor
ATTEST: APPROVED AS TO FORM:
Teresa Vargas
City Clerk
Salvador Navarrete
City Attorney
RIVER ISLANDS
HIGH SCHOOL
VILLAGE 3
LAKE 22 '
B1 SEWER
LIFT STATION
HAVERHILL LANE
LAKE 23
VILLAGE 2
VILLAGE 44
ATTACHMENT
06 • r
FUTURE K- 8
SCHOOL
ATTACHMENT " B"
B1 SEWER
LIFT STATION
VICINITY MAP
MAY2025
ATTACHMENT
p
CITY OF LATHROP
PROJECT ACCEPTANCE
GASB 34 REPORT)
Project Name: River Islands 1B Sewer Lift Station
Submitted by: KPFF Date: 9/ 24/021
ABOVE GROUND CONTRACT
I. CIVIL WORKS
Item # Item Estimated Quantity Unit Unit Price Total
CW- 1 Mobilization/ Demob 1 LS 50, 000 50, 000
CW- 2 Erosion Control Measures 1 LS 10, 000 10, 000
CW- 3 Shoring 1 LS 115, 000 115, 000
CW- 4 Export Material 450 CY 15 6, 750
CW- 5 Trench Backfill Material 200 CY 35 7, 000
CW- 6 Trenching and Excavation 1000 CY 10 10, 000
CW- 7 4" PVC Valve Vault Sewer Drain 10 LF 20 200
CW- 8 6" PVC C900 Gravity Sewer 15 LF 40 600
CW- 9 10" PVC C900- DR18 Gravity Sewer 70 LF 60 4, 200
CW- 10 15" PVC C900 Storm Drain 60 LF 125 7, 500
CW- 11 30" PVC C900- DR18 Gravity Sewer 60 LF 260 15, 600 CW- 12 12" VCP Gravity Sewer 10 LF 80 800
CW- 13 18" VCP Gravity Sewer 80 LF 125 10, 000
CW- 14 4" PVC C900 Sewer FM 120 LF 45 5, 400
CW- 15 8" PVC C900 Sewer FM 20 LF 65 1, 300
CW- 16 10" PVC C900 Sewer FM 120 LF 80 9, 600
CW- 17 4" DI Sewer FM 23 LF 100 2, 300
CW- 18 8" DI Sewer FM 14 LF 110 1, 540
CW- 19 10" DI Sewer FM 8 LF 120 960
CW- 20 60" Polymer Sewer Manhole 3 EA 18, 000 54, 000
CW- 21 Polymerous Sewer Wet Well 1 EA 415, 000 415, 000 CW- 22 96" x60" Access Hatches for Wet Well 2 EA 25, 000 50, 000 CW- 23 Polymorous Valve Vault 1 EA 200, 00 200, 00
CW- 24 36" x36" Access Hatches for Wet Well 2 EA 15, 000 30, 000 CW- 25 Sewer cleanouts 1 EA 1, 500 1, 500
CW- 26 36" x 36" Catch Basin 2 EA 3, 500 7, 000
CW- 27 Survey and Staking 1 LS 8, 200 8, 200
CW- 28 Grading (Rough, Fine, and Compaction) 9440 SF 1 9, 440 CW- 29 Bollards 6 EA 585 3, 510
CW- 30 Concrete Vee Gutter 119 LF 36 4, 284
CW- 31 Concrete Barrier Curb 156 LF 28 4, 368
CW- 32 Accessible Ramp for Pedestrian Crossing 4 EA 3, 000 12, 000 CW- 33 HMA Paving ( 4" HMA/ 12" CL 2 AB) 1440 SF 7 10, 570 CW- 34 HMA Paving ( 3" HMA/ 12" CL 2 AB) 7000 SF 7 45, 570 Sub Total 1,14,92
II. MECHANICAL EQUIPMENT
Item Estimated Quantity Unit Unit Price Total
ME - 1 Duty Pump with associated equipment 2 EA 49, 047 98, 094 ME - 2 Low Flow Pump with associated equipment 1 EA 20, 135 20, 135 ME - 3 Guide Rails and Pipe Appurtenance 1 LS 13, 815 13, 815 ME - 4 Wet Well Float Switch and Transducers 1 EA 4, 650 4, 650 ME -5 Odor Control System 1 LS 40, 000 40, 000
Sub Total 176, 694
III. ELECTRICAL
Item Estimated Quantity Unit Unit Price Total
EE -1 Primary and secondary conduits 80 LF 29 2, 320
EE - 2 Utility Transformer PadNault 1 EA 24,40 24,40
EE -3 Main Switchboard w/ ATS 1 EA 94, 410 94, 410
EE -4 Generator and Fuel Tank 1 EA 121, 500 121, 500
EE - 5 ATS Feeders 60 LF 61 3, 645
EE -6 Motor Control Feeder 60 LF 61 3, 645
EE -7 Motor Cotrol Center w/ transformer & panel 1 EA 17, 445 17, 445 EE -8 Lift Pump Feeders 415 LF 133 55, 195
EE - 9 AC Unit Feeder 10 LF 13 128
EE -10 Trenching/ Backfill/ Compaction 626 LF 550 344,00 EE - 11 Interior/ Exterior Lighting 11 EA 3, 655 40, 205 EE - 12 Misc Power 55 LF 67 3, 658
EE - 13 Power Utility connection/ construction fees 1 lot 25, 000 25, 000 Sub Total 735, 691
IV. STRUCTURAL AND ARCHITECTURAL BUILDINGS
Item Estimated Quantity Unit Unit Price Total
SE -1 CMU Perimeter Wall 1 LS 60, 000 60, 000
SE - 2 Pump Control Building Structure 320 SF 400 128, 000 SE - 3 Chemical Tank Building Structure 200 SF 400 80, 000 SE -4 Flushing Station Enclosure 1 LS 3, 000 3, 000
Sub Total 271, 000
Above Ground Contract Total $ 2,97, 576
Notes/ Assumptions:
1. Cost estimate based on bid forms provided to KPFF
CITY OF LATHROP
PROJECT ACCEPTANCE
GASB 34 REPORT)
Project Name: River Islands 1B Sewer Lift Station
Submitted by: KPFF Date: 8/ 31/ 2021
BELOW GRADE CONTRACT
I. CIVIL WORKS
Item # Item Estimated Quantity Unit Unit Price Total
CW- 1 Mobilization/ Demob 1 LS 84, 000 84, 000
CW- 2 Erosion Control Measures 1 LS 10, 000 10, 000
CW- 3 Shoring 1 LS 115, 000 115, 000
CW- 4 Export Material 450 CY 15 6, 750
CW- 5 Trench Backfill Material 200 CY 35 7, 000
CW- 6 Trenching and Excavation 1000 CY 10 10, 000
CW- 7 4" PVC Valve Vault Sewer Drain 10 LF 20 200
CW- 8 6" PVC C900 Gravity Sewer 15 LF 40 600
CW- 9 10" PVC C900- DR18 Gravity Sewer 70 LF 60 4, 200
CW- 10 15" PVC C900 Storm Drain 60 LF 125 7, 500
CW- 11 30" PVC C900- DR18 Gravity Sewer 60 LF 260 15, 600 CW- 12 12" VCP Gravity Sewer 10 LF 80 800
CW- 13 18" VCP Gravity Sewer 80 LF 125 10, 000
CW- 14 4" PVC C900 Sewer FM 120 LF 45 5, 400
CW- 15 8" PVC C900 Sewer FM 20 LF 65 1, 300
CW- 16 10" PVC C900 Sewer FM 120 LF 80 9, 600
CW- 17 4" DI Sewer FM 23 LF 100 2, 300
CW- 18 8" DI Sewer FM 14 LF 110 1, 540
CW- 19 10" DI Sewer FM 8 LF 120 960
CW- 20 60" Polymer Sewer Manhole 3 EA 50, 000 50, 000
CW- 21 Sewer Polymer Wet Well 1 EA 450, 00 450, 00
CW- 22 96" x60" Access Hatches 2 EA 25, 000 50, 000
CW- 23 Sewer Polymer Vault 1 EA 275, 000 275, 000
CW- 24 36" x36" Access Hatches 2 EA 15, 000 30, 000
CW- 25 Sewer cleanouts 1 EA 1, 500 1, 500
CW- 26 36" x 36" Catch Basin 1 EA 3, 500 3, 500
Sub Total 1,52, 750
II. MECHANICAL EQUIPMENT
Item Estimated Quantity Unit Unit Price Total
ME -1 4" check valves 1 EA 2, 000 2, 000
ME - 2 4" gate valves 3 EA 2, 000 6, 000
ME -3 8" check valves 2 EA 4, 000 8, 000
ME -4 8" gate valves 2 EA 4, 000 8, 000
ME -5 10" gate valves 2 EA 5, 000 10, 000
Sub Total 34, 000
Below Grade Contract Total $ 1,86, 750
Notes/ Assumptions:
1. Cost estimate based on bid forms provided to KPFF