RFI LOG Demo B1825 and B1839r7.pdf

RFI LOG – DEMO B1825 & B1839

3 June 2025

1. Q: Can the 6 “ inch drain be capped and abandoned instead of removed. To avoid breaking into the street ?

A: Drain to remain refer to updated plans : B-1825 Demo plan MXRD 22-0107 V2

2. Q: Same thing with the water line. Can it be turned off, capped and abandoned?

A: Nothing to be left abandoned

3. Q: On the statement of work under 5.2.2.1 it says “Geothermal well must be decommissioned by a MassDEP certified well driller” But under 5.2.2.2 it says “Contactor must follow all requirements regarding proper removal a geothermal well” Can the geothermal well be decommissioned and abandoned with having to removed. ? Section 5.2.2.1 and 5.2.2.2 kind of contradict each other.

A: The goal is to Completely remove the Geothermal well:

The Geothermal well shall be fully decommissioned and removed in accordance with all applicable Massachusetts Department of environmental Protection (MassDEP) regulations, and the work must be performed by a MassDEP-certified well driller.

4. Q: Does the bond equal to 1% of the total proposed project cost?

A: Yes.

5 June 2025

1. Q: I was unable to find the communication manhole "MH13D" during the site walk. Its specific location is called out on Sheet A-102 from "Attachment 9 B-1825 Demo Plan MXRD 22-0107 V2". Can the location of MH13D be confirmed?

A: Working on locating the manhole, this answer may result in a SOW addendum.

2. Q: The walkway located southeast of B1825 that runs from the parking lot to the woods has concrete staircase. Does the concrete staircase also need to be removed?

A: Yes, as marked on the demo plan A-107 : B-1825 Demo plan MXRD 22-0107 V2

3. Q: The plans do not appear to have a scale set for each page, can one be provided? When I calibrate the scale using the bar scale at the bottom, I am getting different quantities for each page on the same measurement (for example, when measuring the building area, I get 2400 SF on 1 page, but on another page I get

40,000 SF).

A: Follow the first layout A-100 for scaling, plans A-102 to A-109 (not to scale) modified to show work details without scale being adjusted.

4. Q:The grade lines do not seem to have the specific elevations they are associated with. Can those elevations be provided, or can the CAD plan set be provided?

A: Already provided all available information.

6 June 2025

1. Q: To complete my bid for the demolition of buildings 1825 & 1839, I need some as-built specs for the geothermal well that is to be removed. I need the depth and diameter of the well. Also, can you please let me know if it is a standing column well or a closed loop well design. Please advise. Thank you.

A: Answer listed below, Building 1825, Geothermal well.

Date: September/17/ 1997, Well use: Geothermal, Method drilled: Rotary

Type: Standing column, open loop.

The Geothermal well located at Building 1825, drilled using the rotary method in September 1997, has total depth of 650 feet, with bedrock encountered 30 feet. The well casing consists of schedule 40 steel with length of 40 feet and inner diameter of 8 inches, extending 10 feet to bedrock and sealed with a protective shoe. The well is located within medium gray rock, with identified water-bearing zones of depths of 300-305 feet, 345 to 350 feet, 635 to 640 feet.

Pump test conducted on September 22, 1997:

- A pump test recorded a static water level 10 feet below the land surface with a full drawdown to 650 feet achieved after pumping at 40 gallons per mins for 1 hour. Air measurements indicated 100% full recovery after 1hour 45 mins.

Formation encountered during drilling:

- Pan material from 0-5 feet, Sand material 5-20 feet, Clay material 20-3- feet, Medium grey rock 30-650 feet

10 June 2025

1. Q: To complete my bid for the demolition of buildings 1825 & 1839, I am looking for clarification on the spec for granite curb installation. Can existing curbing at front parking area be removed and reset or is new granite curbing required A: Old granite that is in good shape can be rest and used.

2. Q: There is a 1000-gallon #2 fuel oil underground storage tank (UST) listed on the Final Haz-ardous Materials Summary Report dated March 2024. The spec does not include the re-moval of this tank or its location. Can you please advise as to the location of the tank, amount of #2 fuel remaining in the tank and if removal of it should be included in the scope of work?

A: The tank was removed long time ago, It does not exist

11 June 2025

1. Q: Please confirm if taxes should be carried in proposals?

A: No.

2. Please confirm if any state, local, and/or federal permits will be required for this project?

A: local and federal environmental permits

3. Q: Please confirm if there are any known hazardous materials?

A: Will provide hazmat reports

4. Q: What is the foundation design?

A: slab on grade

5. Q: How thick is the building concrete floor?

A: 5.5”-6” Do not have actual record of the exact thickness

6. Q: Where is the communication vault shown on sheet ID A-102 as it is not on the ground as mapped?

A: MH-13D does not exist, new plans were provided.

7. Q: Where is the 1000 gallon #2 underground oil tank as referenced in the final hazardous materials summary report page ii last sentence?

A: Tank was removed, does not exist.

8. Is the water line cement asbestos as listed on the utility breakdown schedule A-100 OR Ductile Iron Pipe as listed on Statement of Work 1.3.1.1?

A: Two water lines iron (confirmed) and cement abandoned (type not confirmed)

9. Q: Where is the plan that shows the "install of vertical granite curb and concrete sidewalks" as referenced in the statement of work 5.5?

A: No concrete sidewalk to be installed, only curbs as marked on the plans.

10. Q: Where is the plan that shows the “clean fill to meet the grades and elevations shown” as referenced in the statement of work 5.5?

A: A-109

11. Q: Is the water valve as shown on plan A-105 staying intact as drawn or remove as listed on the statement work work 5.4.2.3 ?

A: Water valve to remain, updated SOW was provided.

12. Q: Is the fire hydrant staying intact as shown on plan A-105 or being removed as listed on the statement of work 5.4.2.4?

A: Fire hydrant to remain, updated SOW was provided.

13. Q: 5.4.2.9 is an active flowing storm drain fed from other storm collection points outside the scope of work. Removal as shown without further removal up stream would leave culverts dead ended into nothing and cause stormwater backup at the upstream collection points. Please verify that storm drain is to be removed as shown.

A: Storm drains and pipe to be left intact, updated plans and sow were provided.

12 June 2025

1. Q. I just received the SOW dated 06/09/2025. Section 5.4.2.1 calls for the removal of 6-inch ductile iron water pipe and section 5.4.2.2 calls for the removal of an abandoned 8-inch asbestos cement water pipe. The only water pipes listed on the plans are two 2-inch metal water pipes that are listed to be removed. Can you please clarify the scope of work for the water supply demolition.

A: The plans are correct, the sow is updated! It is 2” iron pipe.

16 June 2025

1. Q: Is the water column in the geothermal well considered clean and can it be used for grout mixture and discharged to the ground, or does it need to be containerized and disposed of?

A: The groundwater is not expected to be contaminated in this area. Please refer to

1.1.1 Decommissioning and Removal of Geothermal Well.