Final 761_17183-Addendum-Combined.pdf

Philadelphia Street Site Addendum No. 1 Page 1 of 1 April 03, 2019

DMB-406 (R 3/11)

STATE OF MICHIGAN Date Issued: 03 April 2019 Department of Technology, Management and Budget Index No(s): 44701 Facilities and Business Services Administration File No: 761/17183.SAR First Floor Stevens T. Mason Building Department: Environmental Quality P.O. Box 30026 Project Name: Philadelphia Street Lansing, Michigan 48909 Site

Subject: Soil Excavation and Disposal

Bid Opening Date: 10 April 2019

ADDENDUM NO. 1

TO: All Bidders

SUBJECT: Revision to the Project Manual Dated February 25, 2019.

INTENT: This Addendum consists of one (1) page and three (3) Attachments including the following;

pre-bid meeting sign-in-sheet, answers to written questions, and revised bid schedule. This Addendum is issued to revise the existing specifications. This Addendum forms part of the Contract Documents and modifies the original Project Manual dated February 25, 2019.

Item 1 – Contract Forms: Replace the existing Bid Schedule with the revised form in

Attachment C.

ACKNOWLEDGEMENT: Acknowledge receipt of this Addendum in the space provided on the Bid Schedule Sheet. This Addendum must be properly acknowledged for submission of a valid proposal.

The changes and information shall become part of the contract documents.

Sincerely, R. Chris Douglas Project Manager Weston Solutions of Michigan, Inc.

Attachment A

Pre-Bid Meeting Sign-in-Sheet

Attachment B

Answers to Written Questions

ATTACHMENT B

TO ADDENDUM NO. 1

ANSWERS TO WRITTEN QUESTIONS

Question: The excavation is to be taken to the property boundary - Can you confirm this is just inside the inside edge of the existing sidewalks?

Answer: Yes, the property boundary is assumed to be at the inside edge of the existing sidewalks.

Question: For the 12' deep excavation along the property line, saturated sandy soils would seem to preclude an open cut, even with sloping. Assuming that sloping isn't allowed for this deep cut, is sheet pile assumed and approved for sidewalk and road protection?

Answer: Yes, sheet piling is an acceptable side-wall stabilization method if sloping is not sufficient. As part of the pre-work submittals, the work plan should include a stabilization plan.

Question: Can you clarify the survey requirements? Pre-excavation, post excavation, and post restoration all required?

Answer: A pre-excavation survey is required to delineate property boundaries. No other surveys are required.

Question: Is it expected that initial excavation will stop at native clays?

Answer: Excavation will likely stop 1-2 ft into the native clay, as determined by the professional and field screening observations.

Question: Per the LARA Web Site - "On June 6, 2018, Michigan’s Prevailing Wages on State Projects law, Act 166 of 1965 was repealed as the result of a legislative initiative; the repeal was given immediate effect. Wage and Hour, therefore, will no longer issue prevailing wage rates, and updates to surveys will not be made. Any survey or other prevailing wage information filed with Wage and Hour in the future will be returned to the sender." Is prevailing wage required and what schedule should be used?

Answer: Prevailing wages are not required.

Question: Do footings and underground utility lines remain from the previous facilities?

Answer: It is unknown if footings and underground utility lines remain from the previous facilities. A GPR survey conducted in 2016 identified two small subsurface anomalies within 4 ft of the ground surface (cut-off pipe and debris). Subsurface conditions below 4 ft are unknown.

Any abandoned utility service lines encountered during excavation will be properly cut and capped.

Question: Can the adjacent properties (i.e. alley north of Parcel 1 or strip of property beyond the trees west of Parcel 1) be used for trailer, frac tank, parking, etc?

Answer: The alley north of Parcel 1 may be used for staging of equipment. The property beyond the trees west of Parcel 1 may not be used for staging.

Question: Is the 1.5 foot cut on Parcel 1 relative to a specific datum or existing grade? Is the restored site supposed to maintain the preexisting grades or simply provide smooth grades that promote sheet flow drainage from the site?

Answer: The 1.5 foot cut on Parcel 1 is relative to existing grade. The restored site should be graded to pre-existing grades that promote sheet flow drainage from the site.

Question: Is a third party utility clearance required?

Answer: Yes, third party utility clearance is required prior to excavation.

Question: What duration should be anticipated to allow the Engineer time to do confirmatory testing and analysis prior to allowing backfill operations to proceed?

Answer: Approximately 1 week should be anticipated for confirmatory testing.

Question: What is the status of the monitoring wells? Are they to be protected?

Answer: No permanent monitoring wells exist on the site. Groundwater samples collected during previous work were collected from temporary wells that were removed after sampling.

Question: Are topsoil quantities noted in the Bid Schedule measured by delivered quantity as evidenced by truck tickets or in place volume after placed, spread, and compacted?

Answer: Quantities noted in the Bid Schedule are estimated by volume and may fluctuate.

Payment will be based on actual quantities used as evidenced by truck tickets.

Question: What conversion was used for the excavated and imported material quantities shown on the Bid Schedule?

Answer: The following conversions were used during quantity calculations:

Excavated soil = 1.7 ton/cy Sand = 1.3 ton/cy Topsoil = 1.1 ton/cy

Attachment C

Revised Bid Schedule

Bidding and Contract Document (02/19) Project Name: Philadelphia Street Site File No.761/17183.SAR

The Bidder must figure its Base Bid on the specified, or Addendum-approved, materials and equipment only. No “or equal” or substitution proposals will be permitted after Bid opening, except as provided in the General Conditions.

Addenda: Bidder acknowledges receipt of Addenda: No. ___ dated: ________, No. ___ dated: ________ No. ___ dated: ________ FIRM NAME TELEPHONE NUMBER and E-MAIL ADDRESS

BID SCHEDULE

Base Bid Schedule - The Bidder will complete the Work and accept as full payment, for the Work items listed, the following Unit Prices and/or Item Bid Prices, as applicable:

Base Bid Item No.

Bid Quantity

Description (Bidder to write price in Words)

Unit Price

Item Bid Price

1 1 LS Mobilization, planning, and jobsite administration

2 4,900 tons Excavation and disposal petroleum impacted soil

3 4,000 gallons Removal/disposal of petroleum impacted groundwater

4 3,400 tons Backfill Material (sand) 5 300 cu. Yds. Surface Restoration (top soil) 6 11,625 sq. ft. Surface Restoration (seeding) 7 1,100 sq. ft. Sidewalk removal and replacement 8 1 LS Demobilization and project closeout

ALLOWANCE AMOUNT NA $20,000.00

TOTAL (This amount should equal the Base Bid amount on the Bid Summary Form) $

Base Bid (Sum of Item Bid Prices for all Base Bid Items):

__________________________________________________________________ Dollars $__________________________ (use words) (in figures)