Bid Comparison10-25-24 WWTP ~1.pdf

PROJECT:

2020-020.01

1 Mobilization LS 1 120,000.00$ $ 120,000.00 132,000.00$ $ 132,000.00 100,000.00$ $ 100,000.00

2 Permiting and Special Inspections LS 1 22,500.00$ $ 22,500.00 5,000.00$ $ 5,000.00 20,000.00$ $ 20,000.00

3 Erosion Control, Reseeding, and Restoration LS 1 15,000.00$ $ 15,000.00 5,000.00$ $ 5,000.00 15,000.00$ $ 15,000.00

Furnish and Install Chemical Feed Duplex Pump Skid System, Chlorine Residual

Meter with Sampling Pump, Chemical Dosing/Mixing Tank

LS 1 147,500.00$ $ 147,500.00 150,000.00$ $ 150,000.00 120,000.00$ $ 120,000.00

5 Furnish and Install Flash Mixer LS 1 3,800.00$ $ 3,800.00 45,000.00$ $ 45,000.00 65,000.00$ $ 65,000.00

Furnish and Install Site/building Piping for Dichlorination Improvments including all fittings, valves, supports, hangers, clamps, air releases, drains etc

LS 1 18,000.00$ $ 18,000.00 28,000.00$ $ 28,000.00 40,000.00$ $ 40,000.00

7 Manhole (48'' diameter, Eccentric) EA 2 22,000.00$ $ 44,000.00 15,000.00$ $ 30,000.00 10,000.00$ $ 20,000.00

Furnish and Install dechlorination enclosure, including slab foundation, aggregate, framing, roofing system, etc.

SF 100 365.00$ $ 36,500.00 700.00$ $ 70,000.00 500.00$ $ 50,000.00

9 Design Build Electrical and Heating for dechlorination improvements LS 1 112,945.00$ $ 112,945.00 50,000.00$ $ 50,000.00 140,000.00$ $ 140,000.00

Furnish and Install Attached Growth System w/ Blowers, enclosures, concrete pad, airlines, header, hangers, pipe supports, valves, mooring system etc.

EA 1 378,000.00$ $ 378,000.00 350,000.00$ $ 350,000.00 450,000.00$ $ 450,000.00

11 Design Build Aeration Electrical LS 1 50,750.00$ $ 50,750.00 56,000.00$ $ 56,000.00 60,000.00$ $ 60,000.00

12 Remove and Decommision Ex. Pump Station LS 1 2,250.00$ $ 2,250.00 3,600.00$ $ 3,600.00 7,000.00$ $ 7,000.00

13 Furnish and install Grinder Pump Assembly LS 1 45,000.00$ $ 45,000.00 16,000.00$ $ 16,000.00 20,000.00$ $ 20,000.00

Furnish and install 1-1/4" Effluent Transport Pipe with bedding and backfill or use HDPE for horizontal directional drilling

LF 575 36.00$ $ 20,700.00 65.00$ $ 37,375.00 50.00$ $ 28,750.00

15 Furnish and install valves and effluent line appurtenances LS 1 5,400.00$ $ 5,400.00 4,500.00$ $ 4,500.00 30,000.00$ $ 30,000.00

Furnish and Install Grinder, Auger and Screen, including connection to existing electrical

LS 1 78,000.00$ $ 78,000.00 110,000.00$ $ 110,000.00 250,000.00$ $ 250,000.00

17 Furnish and Install Concrete Septic Tanks LS 1 64,800.00$ $ 64,800.00 80,000.00$ $ 80,000.00 65,000.00$ $ 65,000.00

18 Furnish and Install Effluent Pump System LS 1 12,000.00$ $ 12,000.00 20,800.00$ $ 20,800.00 30,000.00$ $ 30,000.00

Furnish and Install 2" Sch. 80 Effluent Transport Pipe with bedding and backfill or

Install HDPE with horizontal directional drilling

LF 700 40.00$ $ 28,000.00 68.00$ $ 47,600.00 50.00$ $ 35,000.00

20 Flow Meters and Misc Mechanical LS 1 12,000.00$ $ 12,000.00 67,000.00$ $ 67,000.00 30,000.00$ $ 30,000.00

Demolition, decomisioning and abandonment. (Ex pump station, pump statetion force main, influent structure etc.)

LS 1 26,000.00$ $ 26,000.00 10,000.00$ $ 10,000.00 25,000.00$ $ 25,000.00

22 Chlorination Building Vent Fan, Louvers etc LS 1 6,100.00$ $ 6,100.00 5,000.00$ $ 5,000.00 25,000.00$ $ 25,000.00

Subtotal

ITEM

NUMBER

ITEM DESCRIPTION UNIT QUANTITY

$1,249,245.00 $1,322,875.00

TOTALUNIT COST TOTAL UNIT COST

2KG Contractors, Inc HP Civil, Inc

Engineer's Estimate Bid Comparison

The project consists of upgrades to the existing Port of Tillamook Bay Wastewater

Treatment Plant to improve the quality of effluent discharge into the Trask River. The

Improvements include the following:

1.) Treatment for chlorine residual using chemical de-chlorination through the addition of sodium metabisulfite (SMBS). This will consist of the construction of a small enclosure to house new chemical feed pumps and effluent sampling, as well as the installation of two manholes on the existing chlorine contact chamber to house the de-chlorination flash mixer and sampling location.

2.) Treatment to meet ammonia limits through an aerated, attached growth system placed at the end of Cell 2. This system consists of floating media modules located within one of the existing lagoons as well as blowers.

3.) This project will also consist of converting the Tillamook County Corrections Facility gravity feed line to a septic tank effluent pump system and the decommissioning of an existing pump station that will no longer be needed after the Tillamook County Corrections

Facility is converted to a septic tank effluent pump system. The pump station will be replaced with a small grinder pump sized for a single bathroom.

4.) The project will replace 635 LF of existing 1-1/4’’ pipe with new 2’’ PVC pressure effluent pipe. It will also include installation of 575 LF of New 1-1/4’’ PVC pressure effluent pipe.

5.) Electrical, building, equipment supply, and piping will be required as indicated on the plans.

6.) Replace existing influent and effluent meters.

KIND OF WORK DATE: 10/24/2024

Engineer's Estimate

WWTP Dechlorination and Ammonia Removal ContractorContractor

ORR, Inc

UNIT COST TOTAL

$1,625,750.00

Contractor

501 E 1st Street Newberg, OR 97132 503-554-9553