QA- 191BWC22r0010-3.pdf
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- Solicitation number
- 191BWC22R0010
About this file
This solicitation is seeking offers for the regular removal of sludge from a wastewater treatment plant in Nogales, Arizona on a monthly basis. The International Boundary and Water Commission is requesting pricing for sludge transport and landfill fees for an initial base year with one option year. Offers are due by October 24th and the award will be made to the lowest priced technically acceptable offeror. Offerors should provide details on their technical approach, past performance references, and pricing for line items including 2,500 tons of monthly sludge transport and estimated landfill fees. The solicitation is set aside for small businesses with a NAICS code of 562111 and size standard of $41.5M. The contractor will be required to transport sludge from filter presses to an approved landfill during normal working hours using trucks of a specified size.
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SOLICITATION POSTED BETA.SAM 191BWC22R0010 SLUDGE – NOGALES
INTERNATIONAL BOUNDARY AND WATER COMMISSION
Questions & Answer
191BWC22R0010
QUESTIONS & ANSWERS:
1. Please describe the environment and physical conditions of the filter press and the process of removing sludge from the press.
A: There are two Belt Filter Presses, both Ashbrook 2.5-meter 3 belt. Each press discharges to a screw conveyor which transports sludge to a distribution conveyor for truck loading.
-Previously answered in Amendment 2
2. Would the sludge free fall from a conveyor to the tipper truck box?
A: Yes, the sludge free falls into truck -Previously referenced in Amendment 2
3. Would the contractor be required to operate the filter press to remove the sludge manually/directly?
A: No, Government personnel operate the press and conveyors.
4. Does the contractor required to conduct any cleaning as part of the sludge removal process?
A: The contractor is required to have their trucks clean of sludge before entering public roadways but is not required to clean presses.
5. Is the press installed over a ramp or elevated ground above the tipper truck/trailer?
A: Yes, the presses are higher elevation than the loading area for the trucks, the loading area has an elevated screw conveyor for loading the trucks -Previously referenced in Amendment 2.
6. Does the sludge free-falling from the press or does it need the contractor personal to scrape it?
A: The sludge free falls from the screw conveyors down to the trucks.
Previously answered in Amendment 2
SOLICITATION POSTED BETA.SAM 191BWC22R0001 GLYCERIN – NOGALES
7. The SOW's current description leaves room for guesswork and is not explicit and can be interpreted in several ways. Hence the requirement is ambiguous. Please provide a clear description of the sludge removal process.
A: The wet sludge is dewatered using belt filter presses, the dewatered sludge exits the belt filter presses and discharges into an inclined screw conveyor which transports the dewatered sludge to an overhead horizontal screw conveyor which is above the truck loading area. The dewatered sludge then free falls through selectable discharge gates into waiting truck below. Once the truck has reached its maximum capacity the truck is moved by the contractor and an empty truck is then placed under the dewatered sludge discharge area. The full truck is then transported to the appropriate landfill for disposal according to the requirements of the appropriate landfill. The truck then returns to the belt press area to be placed under the dewatered sludge discharge area to wait in que to be loaded again.
8. Do you mean that CLIN 0001 is an IDIQ with a guaranteed monthly minimum of 2,500 tons and each additional ton will be based on performance and documented evidence?
A: Your interpretation is correct with the exception that this is not an IDIQ contract.
It is not anticipated that greater than 2,500 tons will produced in any one month. A modification to the contract would be required for anything above 2,500 tons in a month- -A history of the tonnage was provided in Amendment 2
9. Do you mean that the prorating rate would be the monthly rate, divided to 2500?
A: This would be one part of the formula in negotiating a modification for anything above 2,500 tons in a single month.
-A history of the tonnage was provided in Amendment 2
10. Do you have weight bridge at the wastewater plant?
A: No
11. We would like to estimate the upcoming workload based on extrapolating the performance of the treatment plant. Please provide historical sludge production rates based on:
i. tonnage per month (the last 12 months)
A: See attachments: -A history of the tonnage was provided in Amendment 2
ii. number of trips/truck loads per month. (The last 12 months) A: See attachments: -A history of the tonnage was provided in Amendment 2
12. CLIN 001/002/003/004 are they IDIQ or FFP
A: IDIQ contract with fixed price unit rates therefore the units are FFP’s.
13. Sludge analysis has been posted.
14.
A: Posted- Previously answered in Amendment 1.
15. Please provide the correct AAC the contractor to comply.
A: The contractor is required to comply with all State/Federal requirements for transport of biosolids and it is the responsibility of the contractor to identify such.
16. Re: Extension of Solicitation:
A: Extended to 10/31/2022 3 PM MT.
17. Would the contractor be allowed to park its trucks/trailers/tractors within the wastewater facility overnight and on weekends?
A: Yes -A brief description of the truck/loaders was provided in Amendment 2
18. Would the contractor personnel be furnished a small waiting room for drivers?
A: Nothing Furnished
13. In case needed, would the contractor allowed minor equipment cleaning/washing at the facility to prevent spills on the road?
A: Yes
19. Performance start date, onboarding, and contract start date:
The public records for contract 191BWC19C0002 indicate that the end of performance is due on 11/30/22.
A: The contract has been extended with Modification Date to end 11/30/2022. - Previously answered name of the vendor in Amendment 2.
20. Duration of onboarding period if there is any. - ?
A: The onboarding is dependent on the length of time it takes the contractor personnel to receive security clearance.
21. Sludge removal / hauling start date. –
A: Approximate start date 12/01/2022 based in the extension of this solicitation.
22. RE: J&A dated 8/24/2015
A: The reference J&A dated 8/24/2015 is not pertaining to this solicitation as the circumstance in 2015 were different form the existing ones today in 2022.
23. Please list the required certifications referred in this requirement
A: The contractor drivers are required to comply with all State and Federal requirements to drive the type of vehicle that will be used in contract performance.
Identifying the need for and responsibility for complying with and State or Federal driver certification requirements is the responsibility of the contractor.
24. The SOW in 6.2 describes the process of sludge removal and briefly describes the method applied today to collect the sludge.
the sludge is conveyed through two screw augers above the tipping trucks.
The auger then goes perpendicularly above each truck, The sludge then chutes\falls to the truck's bucket at multiple locations from each auger.
In relation to the above:
a. What is the distance (in feet) between the far ends of the two chutes/augers?
b. What is the distance between the two close ends of the chutes?
A: Please refer to attachments M530, M537, M0538.
-A brief description of the truck/loaders was provided in Amendment 2
END of Q&A
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