Los Angeles County Public Works
Project Management Division III
Progress Payment 4
Project Name: West Coast Basin Barrier Project Unit 13
Contractor: Environmental Construction, Inc.
21550 Oxnard Street, Suite 1060
Woodland Hills, CA 91367
Project ID: FCC0001322
Federal Number(s): None
Original Contract: $10,182,790.00
Awarded: 10/26/2020
Period Ending: 8/31/2021
Board Accepted: 2/13/2023
Item No.DescriptionBid QtyUnitsTotal Qty.Previous Qty.Current Qty.Unit PriceCurrent Amount
2CONSTRUCTION SCHEDULE (UPDATE) (STIPULATED UNIT PRICE OF $500/MONTH)13.00MTH 4.00 3.001.00$500.00$500.00
4IMPLEMENTATION OF THE LTWHP1.00LS 0.32 0.240.08$2,000.00$160.00
5IMPLEMENTATION OF BMPS1.00LS 0.32 0.240.08$20,000.00$1,600.00
7SHORING OF OPEN EXCAVATIONS1.00LS 0.32 0.240.08$3,110.00$248.80
9IMPLEMENTATION OF THE SITE-SPECIFIC HEALTH AND SAFETY PLAN 1.00LS 0.32 0.240.08$5,000.00$400.00
12OFFICE FACILITIES13.00MTH 4.00 3.001.00$2,000.00$2,000.00
14CLEARING AND GRUBBING1.00LS 0.85 0.650.20$34,094.00$6,818.80
18CONCRETE REMOVAL (NON-REINFORCED)22.00CY 7.00 0.007.00$400.00$2,800.00
20CRUSHED AGGREGATE BASE590.00CY 98.00 0.0098.00$106.00$10,388.00
32TRAFFIC CONTROL1.00LS 0.39 0.310.08$90,300.00$7,224.00
3712" DIAM BLANK STAINLESS STEEL CASING1,469.00VF 511.00 381.00130.00$357.00$46,410.00
39GRAVEL PACK 24" DIAM HOLE1,595.00VF 522.00 404.00118.00$161.00$18,998.00
41USE OF CONTRACTOR'S DRILL RIG190.00HR 13.00 12.001.00$170.00$170.00
47IMPLEMENTATION OF THE GROUNDWATER MANAGEMENT PLAN1.00LS 0.44 0.360.08$540,931.00$43,274.48
49NOISE CONTROL (ALLOWANCE OF 70,000)70,000.00AL 48,532.00 34,065.0014,467.00$1.00$14,467.00
55DRILL 24" DIAMETER BOREHOLE1,805.00VF 707.00 442.00265.00$316.00$83,740.00
56DRILL 30" DIAMETER BOREHOLE1,029.00VF 433.00 243.00190.00$320.00$60,800.00
62GROUT 30" DIAMETER BOREHOLE1,006.00VF 477.00 359.00118.00$129.00$15,222.00
63GROUT 42" DIAMETER BOREHOLE385.00VF 231.00 195.0036.00$200.00$7,200.00
65SAND FILTER PACK FOR 30" DIAMETER BOREHOLE22.00VF 8.00 6.002.00$111.00$222.00
68INJECTION WELL HEAD ASSEMBLY11.00EA 1.00 0.001.00$16,350.00$16,350.00
70WELL BOTTOM CAP (BULL NOSE)11.00EA 4.00 3.001.00$904.00$904.00
7112" DIAMETER STAINLESS STEEL SCREEN CASING1,495.00VF 450.00 350.00100.00$184.00$18,400.00
743" DIAMETER TREMIE PIPE SCHEDULE 80 PVC2,846.00VF 906.00 676.00230.00$9.00$2,070.00
764-INCH DIAMETER STAINLESS STEEL PIPE142.00LF 13.00 0.0013.00$360.00$4,680.00
776-INCH DIAMETER STAINLESS STEEL PIPE341.00LF 38.00 0.0038.00$446.00$16,948.00
78PRIMARY WELL DEVELOPMENT WITH SWABBING AND AIRLIFTING550.00HR 61.50 47.0014.50$542.00$7,859.00
80ELECTRICAL WORK1.00LS 0.25 0.000.25$751,723.00$187,930.75
81FIELD INSTRUMENTS1.00LS 0.34 0.000.34$241,320.00$82,048.80

DEDUCTION DETAIL

DescriptionUnitTotal Qty.Previous Qty.Current Qty.Unit PriceCurrent Amount
OVERTIME INSPECTIONHOUR 73.00 67.006.00$100.00 $600.00

FINANCIAL SUMMARY

  Total Previous Current
Earned $3,728,695.79 $3,068,862.16 $659,833.63
Retained* $186,434.80 $153,443.12 $32,991.68
Deducted $7,300.00 $6,700.00 $600.00
Due $3,534,960.99 $2,908,719.04 $626,241.95



*This project has an escrow account.

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