Addendum_4.pdf

Purchasing Services 2725 Judge Fran Jamieson Way

Building C, Room 303 Viera, Florida 32940

Landfill Stormwater Collection & Gas System Repair & Installation B-2-25-27

January 29, 2025

ADDENDUM 4

TO ALL PROSPECTIVE BIDDERS

This is an Addendum to and shall be considered as part of the original bid package for the above-mentioned bid. Please acknowledge receipt of Addendum 4 in space provided on Price Sheet. Bidders are requested to acknowledge receipt of this addendum with their bid.

CLARIFICATION TO QUESTIONS RECEIVED:

Question 1: Can a construction details drawing be provided for a new landfill gas well, pneumatic pump assembly, side view of the pipeline trench, horizontal collector assembly, sideview of Horizontal Collector, and wellhead assembly? No way to know what exact materials will need to be purchased for these installations/repairs.

Answer: Requested Materials are uploaded as “Attachment C.”

Question 2: Will a measurement and payment section be provided? Or how is the contractor to know what all materials and services are included in each line item?

Answer: No. The pricing sheet is based on typical day of providing repairs.

Question 3: Will access risers/valves/flanges/cleanouts/stub outs or other pipeline appurtenances be included in the LF line items or how will these appurtenances be accounted for?

Answer: See #8 under General Scope of Work and line item 50 in the pricing sheet that accounts for items not specifically detailed.

Question 4: If sand bedding is required in the pipeline trenches would this material available from County stockpiles or will it need to be imported? Or can we use the granular fill material in Line item 5.

Answer: If the County has material to spare then yes. However, fill material is to be used in pipeline trenches.

Question 5: Will there need to be third party geotechnical testing for the stone and/or backfill soil or will these reports be acceptable directly from the quarry.

Answer: No testing will be required.

Question 6: For line item 6 will 1”-3” granite (non-calcareous) stone be acceptable or if not please provide specifications for acceptable #4’s.

Answer: 1” – 3” granite (non-calcareous) stone will be acceptable.

Question 7: Confirm if the contractor will or will not be required to bring in and use a water truck for dust suppression?

Answer: Depending on the scope of the project, the contractor may be required to supply a water truck. This requirement is to ensure adherence to the compliance standards outlined in the first paragraph of the general description. Dust control measures are a mandatory component of every landfill's permit.

Question 8: Does line item 23 include the entire pump assembly (fittings, hose, regulators, etc..) or is this just for the actual QED AP-4 pump alone?

Answer: Just the pump. See #8 under General Scope of Work and line item 50 in the pricing sheet that accounts for items not specifically detailed.

Question 9: Will any destructive or any other off-site testing be needed for the liner repairs?

Answer: No.

Question 10: How will material and equipment storage be managed onsite, and are there any restrictions on access times or conditions?

Answer: The Solid Waste facilities operate from 7:30 am to 5:30 pm Monday through Saturday.

Question 11: Can some specific models and manufacturers be given for what is considered “Viridian Equivalent Pumps?”

Answer: Line item #24 is to be equivalent to line item #23, QED Model AP-4, Short body, Fiberglass and 316 SS Bottom Loading.

Question 12A: Is the County expecting that all tie-ins would be done by Electrofusion Couplers?

Answer: No, not all tie-ins must be electrofusion couplers. Depending on the project, it would vary between electrofusion couplers or fusion welding.

Question 12B: And are line items 18 – 22 intended to capture the costs for tie-ins to the existing system?

Answer: Yes, as well as line item #48 Extrusion Gun and line item #49 Leister Gun.

Question 13: If connecting to the existing GCCS is included in this project, what is the depth of the anticipated tie-ins?

Answer: All GCCS piping is located two feet below surface.

Question 14: If dewatering, shoring, and/or trench boxes, are needed to keep the trench dry and/or safe how will those costs be covered?

Answer: No dewatering, shoring, and/or trench boxes are anticipated to be necessary.

Question 15: Are there any permits, beyond those stated, that the contractor must secure independently, and who bears the cost for these permits?

Answer: No.

Question 16: Confirm if the contractor damages existing sod to access a construction/repair area that the contractor will be responsible to replace it?

Answer: See #15 under General Scope of Work.

Question 17: Where do we include to costs for surveying for this project?

Answer: See “Survey Work,” under General Description of Work and Background Information. Also, see #8 under General Scope of Work and line item 50 in the pricing sheet that accounts for items not specifically detailed.

Question 18: Will the contractor or County be responsible to as-built the newly installed GCCS? If so will a CAD drawing be needed or what will be required in that survey record document submittal?

Answer: No.

Question 19: Confirm sodding or seeding newly constructed areas is not included by the contractor in this scope of work?

Answer: See #15 under General Scope of Work.

Question 20: Are any pipe boots planned for this project?

Answer: Any vertical well replacement in closed areas will require a boot, per compliance standards and should be priced under the line item #47. If it’s in an area where there is GCL, then line item #45 would be used.

Question 21: What geotechnical testing will be the responsibility of the contractor for work done in the closed landfill area?

Answer: None.

Question 22: Are the daily rate line items referring to an 8-hour day or 10-hour day?

Answer: Regular working hours are established as a maximum of 10 hours per day, as our facilities operate from 7:30 AM to 5:30 PM.

Question 23: Are road crossings expected in this scope of work? If so, how will payment for the crossing/road restoration be accounted for?

Answer: Road crossings are not anticipated to be necessary for the nature of this work.

Question 24: Will excavated waste need to be transported through the scales are can it go directly to the active face.

Answer: Excavated waste can be transported directly to the working face.

Question 25: Will waste need to transported offsite for this project or can it all be disposed of onsite at all of the project locations?

Answer: Excavated waste can be transported directly to the working face.

Question 26: Confirm that erosion control matting is not included for this project? Number 7 on page 15 of the ITB in the landfill stormwater collection system scope of work mentions it.

Answer: The work associated for the repair of stormwater collection system “may” consist of items 1 – 8. We currently do not utilize turf reinforcement matting but erosion prevention must be practiced if in the event the work involves stormwater collection system repairs.

Question 27: Confirm all pumps associated with this project will be pneumatic powered?

Answer: All pumps will be pneumatic powered.

Question 28: For the stormwater piping line items 1-3, will the purchase and installation of manholes/fittings/crosses/flared end sections as necessary be included in those line items?

Answer: No.

Question 29: For the equipment line items 30 through 37 does this rate include the operator or are the operator hours/day billed separately?

Answer: Does not include operator. See line item #39.

Question 30: If geotextile is included with stone installation what is the spec for the geotextile materials?

Answer: The geotextile shall be filter fabric made of nonwoven needle punched polypropylene fabric consisting of filaments formed into a stable network with a nominal 10 oz/yd2 unit weight and 100 Mils thickness.

Please note that the bid opening date and time remains Friday, January 31, 2025 @ 10:00 AM.

All other terms and conditions remain unchanged.

Sincerely, Mary Bowers Purchasing Manager

END OF ADDENDUM 4