Los Angeles County Public Works
Project Management Division III
Progress Payment 8
Project Name: Owen Tank Replacement
Contractor: GMZ Engineering, Inc.
5655 Lindero Canyon Road #430
Westlake Village, CA 91362
Project ID: WWD2900041
Federal Number(s): None
Original Contract: $4,427,975.00
Awarded: 12/13/2022
Period Ending: 12/20/2023
Board Accepted: 7/23/2025
Item No.DescriptionBid QtyUnitsTotal Qty.Previous Qty.Current Qty.Unit PriceCurrent Amount
4IMPLEMENTATION OF THE LTWHP1.00LS 1.00 0.930.07$35,000.00$2,450.00
5IMPLEMENTATION OF BMPS1.00LS 0.96 0.930.03$35,000.00$1,050.00
8IMPLEMENTATION OF THE SITE-SPECIFIC HEALTH AND SAFETY PLAN 1.00LS 0.96 0.930.03$35,000.00$1,050.00
176" WATERMAIN, .25" THICK STL50.00LF 50.00 24.0026.00$300.00$7,800.00
21GATE VALVE, 250 PSI WWP, 6"1.00EA 1.00 0.001.00$7,500.00$7,500.00
22INTERCONNECTION TO EXISTING WATERMAIN3.00EA 3.00 1.002.00$10,000.00$20,000.00
24VIDEO INSPECTION1.00LS 1.00 0.500.50$2,500.00$1,250.00
260.5 MG WATER STORAGE TANK AND APPURTENANCES1.00LS 0.99 0.9650.025$2,400,000.00$60,000.00
29CATHODIC PROTECTION SYSTEM (TANK)1.00LS 1.00 0.500.50$30,000.00$15,000.00
30CONCRETE PAD (SURGE TANKS)17.00CY 8.50 4.254.25$2,000.00$8,500.00
35PCC HEADER, 6"X12"890.00LF 223.00 0.00223.00$50.00$11,150.00
36CONCRETE PAVING (PCC) 4" THICK305.00SF 226.50 152.5074.00$50.00$3,700.00
38ELECTRICAL WORK1.00LS 0.41 0.0550.355$550,000.00$195,250.00
39TRAFFIC CONTROL1.00LS 1.00 0.950.05$25,000.00$1,250.00
40CONST & REMOVE TEMP CHAIN LINK FENCE275.00LF 275.00 137.50137.50$50.00$6,875.00
S-5BLOWER UPGRADE LS 0.85 0.650.20$37,000.00$7,400.00
S-9SURGE TANK CONNECTION RE-DESIGN LS 1.00 0.001.00$70,000.00$70,000.00
S-13INSTALL GASKETS LS 1.00 0.001.00$695.17$695.17

DEDUCTION DETAIL

There are NO deductions this period

FINANCIAL SUMMARY

  Total Previous Current
Earned $4,020,534.17 $3,599,614.00 $420,920.17
Retained $201,026.71 $179,980.70 $21,046.01
Deducted $0.00 $0.00 $0.00
Due $3,819,507.46 $3,419,633.30 $399,874.16



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