NIWTP RFI responses - 1st Rd.pdf
PDF 104 KB Posted
- Attached to
- Biosolids Sludge Dryer Alternative Federal contract opportunity
- Solicitation number
- 191BWC25R0002
About this file
This document contains pre-proposal questions and answers for Solicitation 191BWC25R0002, a Biosolids Sludge Dryer Alternative project for the Nogales International Wastewater Treatment Plant (NIWTP). Key details include operational information about the current dewatering facility, such as running six days a week for seven hours per day, with an average of 17.73 dry tons of sludge sent to disposal daily. The questions and answers clarify critical project parameters, including facility constraints (50 ft x 150 ft footprint, multi-level structure allowed), current equipment specifications, and operational costs like base power charge ($0.069933), annual maintenance costs ($56,000), and sludge disposal fees ($43 per ton). Responses also confirm that Charter Machine can team with a contractor and that "as built" drawings for the existing dewatering facility will be provided to potential bidders.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| IBWC Form 358 Nondisclosure Agreement - CUI.pdf | ||
| PWS NIWTP Biosolids Sludge Dryer Alternative UPDATE.pdf | ||
| 191BWC25R0002 Pre-Proposal Conference Sign In 4-18-25.pdf | ||
| 191BWC25R0002 Questions and Responses 4.10.25.pdf | ||
| 191BWC25R0002 Questions 4.10.25.docx | DOCX document | |
| PWS NIWTP Biosolids Sludge Dryer Alternative.pdf | ||
| Continuation Page.pdf | ||
| IBWC Form 110 Certification of Authority for Signing Bids - Contracts.pdf | ||
| PWS NIWTP Biosolids Sludge Dryer Alternative.pdf | ||
| IBWC Form 116 Statement of Equipment.pdf | ||
| IBWC Form 358 Nondisclosure Agreement 20170414.pdf | ||
| Sludge Dewatering System-Part 1.pdf | ||
| Sludge Dewatering System-Part 2.pdf | ||
| Wage Determination 15-5481 (4).txt | TXT text file | |
| 191BWC25R0002 Biosolid Drying Alternatives - 4.2.2025.pdf |
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Questions 191BWC25R0002 Biosolids Sludge Dryer Alternatives
NIWTP Biosolids Sludge Dryer Alternative Pre-Proposal Questions
1. Is it possible to relocate the Dewatering facility site so the existing site will not need to be decommissioned until new equipment is up and running? No, relocating is not possible. The dewatering process cannot be paused. Please refer to the Performance Work Statement (PWS) within the solicitation for requirements.
2. Can the overall footprint be larger than 50 ft X 150 ft? Or can the structure be multi-levels if necessary?
No, the footprint cannot be larger than 50 ft x 150 ft. The footprint provided is for the proposed enclosure/building. Equipment will need to fit within the footprint of the enclosure/building.
Yes, the structure may be multi-level, if necessary.
3. Since Charter Machine is a supplier and not a contractor, is it ok to team up with a contractor for the bid and the submittal? Yes
4. In order to do an accurate 20 year cost/savings analysis, can we get the following information:
a. Current hours per day/week of operation for the belt filter presses Six days a week, seven hours per day
b. Current kwh usage by dewatering equipment Unable to segregate
c. Current kwh cost to the facility Base power charge $0.069933
d. Estimated annual maintenance and repair costs of existing dewatering equipment $36,000 belts; $20,000 miscellaneous
e. Actual hauling and tipping fees for sludge disposal As of June 2025, estimated tipping is $43 per ton Transport estimated is 1,218 loads annually @ $600 per truck
f. Daily/Monthly/Annual tons of dry sludge taken to landfill Average daily DRY tons to disposal is 17.73 Tons
5. Is it possible to get complete set of “as built” drawings for existing dewatering facility?
Yes, the drawings will be provided.
6. Should we factor in new sludge feed pumps into our proposal? Should that be a separate pump for each screw press?
We do know what your proposal will be so we cannot answer. We currently have 2 pumps @ 400 gpm each with a 3rd pump which can be reconfigured to work as a sludge feed pump @ 400 gpm.
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