Attachment_3a_-_Amd_0002_Qs_As_0002.docx

140R4026Q0022 – MRG SFD Centrifugal Pumps Attachment 3a – Amd 0002

Amendment 0002 - Questions and Answers

1. Is there any incumbent/recompete or this is a brand-new project? If yes, could you please provide us with their award number or even if the customer bought similar services in the past.

Government Response - The current pumps were purchased in 2003 from Goodwin Pumps of America under award #INR03PE430163.

2. Duty Point Interpretation Are the 2,200 GPM minimum flow and 182 ft maximum head intended to be achieved simultaneously at a defined duty point, or should these be interpreted as independent operating limits within the pump’s performance range?

Government Response - Minimum 2,200 GPM flow and maximum 182 ft head are independent limits; the pump shall operate anywhere within this performance range.

3. Suction Lift For the 25 ft maximum suction lift:

0. Does this refer to static lift only, or total suction conditions including friction losses?

Government Response - Maximum 25 ft suction lift refers to total suction conditions.

0. Is there an assumed elevation or typical suction piping configuration we should consider?

Government Response - No specific piping configuration or elevation is required; standard industry practices apply.

4. Engine Preference The specification calls for a minimum 60 HP engine. Is there a preferred or standardized engine size the Bureau typically operates for 6” units?

Government Response - Minimum 60 HP diesel engine is required. No preferred engine manufacturer or size is specified; any engine meeting SOW performance and Tier 4 compliance is acceptable.

5. Existing Fleet Does the Bureau currently operate similar 6” self-priming pumps? If so, are there preferred manufacturers or performance standards we should align with?

Government Response - No specific existing fleet requirements or preferred manufacturers are mandated. Pumps shall meet the description/specifications.

6. Flow Meter

0. Is there an approved or preferred manufacturer?

Government Response - No specific manufacturer is required.

0. Does the ±5% accuracy requirement need documented certification?

Government Response - Flow meter shall provide ±5% accuracy and be suitable for solids-laden water.

0. Is a calibration certificate required at delivery?

Government Response - Certification or calibration at delivery is not required but standard industry testing is acceptable.

0. Does the flow meter need to be permanently installed, or is a modular integrated spool acceptable?

Government Response - Permanent or integrated modular installations are acceptable.

7. Sound Attenuation Is there a specific dBA requirement at a defined distance, or is a standard sound-attenuated enclosure acceptable?

Government Response - Enclosure shall be sound-attenuated to industry standards; no maximum dBA is specified.

8. Documentation What documentation is required at delivery (O&M manuals, wiring diagrams, submittal drawings, inspection reports, etc.)?

Government Response - Deliver standard industry documentation, including O&M manuals, wiring diagrams, submittal drawings, and inspection reports as applicable.

9. The specifications require two rear leveling jacks with swivel lock mechanisms. Are additional outriggers or stabilizers (e.g., front or side-mounted) required or preferred for enhanced stability during operation on uneven terrain?

Government Response - No

10. What are the preferred overall dimensions for the trailer (e.g., length, width, height) to ensure compatibility with storage or transport at the Socorro Field Division site?

Government Response - No specific dimensional limits are prescribed. However, the trailer must be of standard transportable size suitable for safe towing, storage while remaining within all SOW weight and DOT requirements

11. The trailer must be DOT-compliant and dual-axle. Are there specific requirements for axle rating, tire size/type (e.g., radial vs. bias-ply), or hitch type (e.g., pintle vs. ball)?

Government Response - The axle rating and tires shall be appropriately rated to safely support the fully loaded trailer (wet weight not to exceed 4,000 lbs) and comply with all applicable DOT requirements. Tire type (radial or bias-ply) is acceptable provided load ratings meet or exceed the required capacity. The hitch shall be a standard bumper-pull configuration compatible with electric brake systems and the specified 7-pin connector.

12. Beyond the required spare tire and mount, are there preferences for wheel chocks, reflective tape placement, or additional safety features like backup alarms?

Government Response - Backup alarms are not required for the trailer. No additional safety features beyond those necessary to meet DOT compliance and the requirements specified in the SOW are mandated. Reflective tape and lighting shall meet applicable DOT standards.

13. The dry weight must be ≤3,600 lbs and wet ≤4,000 lbs. Are there any preferences for materials (e.g., aluminum vs. steel frame) to optimize weight while maintaining durability?

Government Response - No

14. The trailer requires four D-rings for tie-down. Are there specific locations or strength ratings (e.g., working load limit) required for these?

Government Response - The D-rings shall be rated for the trailer’s wet weight.

15. For the toolbox(es), what specific sizes, materials, or additional contents (beyond seals and hose clamps) are desired?

Government Response - Toolboxes shall be sized to securely store necessary tools and equipment for pump operation, including 6-inch rubber seals and hose clamps.

Pump and Connections

16. The suction and discharge are specified as 6-inch flanged. What flange standard is required (e.g., ANSI 150, ASME B16.5, or Victaulic-style grooved ends)? Are bolt patterns, facing types (e.g., raised face vs. flat face), or materials (e.g., carbon steel vs. stainless) specified?

Government Response - Flat Faced with Baure fitting, please see Attachment 3b – Exhibit 1 for an image of the fitting. The fitting has 8 Bolts.

17. The impeller is stainless steel, dual-vane, enclosed, capable of passing 3-inch spherical solids. Are there preferences for impeller trim size or balancing to optimize for the minimum 2,200 GPM flow rate?

Government Response - The impeller shall be stainless steel, dual-vane, enclosed, pass 3-inch solids, and be optimized for 2,200 GPM.

18. The mechanical seals are tungsten carbide faces, oil lubricated. Is a specific seal manufacturer (e.g., John Crane) preferred, or are there requirements for seal flush plans or monitoring?

Government Response - Mechanical seals shall have tungsten carbide faces, be oil-lubricated, and meet industry standards; no specific manufacturer or flush plan is required.

19. The total head is not to exceed 182 ft. Is there a minimum head requirement, or preferred operating curve details (e.g., efficiency at best efficiency point)?

Government Response - No

20. For self-priming, the maximum suction lift is 25 ft with priming ≤5 minutes. Are there requirements for priming assist systems (e.g., vacuum pump) or testing protocols?

Government Response - The pump shall self-prime with a maximum 25 ft suction lift and priming time ≤5 minutes; no priming assist systems or testing protocols are required.

Engine and Controls

21. The engine must be diesel, minimum 60 HP at 1,800 RPM, EPA Tier 4 compliant. Are there preferred engine manufacturers (e.g., John Deere, Cummins) or options for higher HP if it improves efficiency without exceeding head limits?

Government Response - No

22. The 80-gallon fuel tank is required. What material (e.g., steel vs. polyethylene) or features (e.g., lockable cap, level gauge) are preferred?

Government Response - The 80-gallon fuel tank shall be industry-standard and DOT-compliant.

23. The control panel requires a 4-inch OLED display for RPM, flow rate (±5% accuracy via integrated flow meter), battery voltage, and coolant temperature, plus a toggle switch for RPM adjustment. Are there specifics for the flow meter type (e.g., magnetic vs. ultrasonic) or additional display metrics (e.g., oil pressure, hours run)?

Government Response - The control panel shall meet industry standards for monitoring RPM, flow rate, battery voltage, and coolant temperature, with an RPM adjustment toggle; no specific flow meter type or additional metrics are required.

24. The engine uses a 12-volt industrial battery. Are there requirements for battery capacity (e.g., CCA rating), enclosure, or cold weather starting aids?

Government Response - Enclosed Enclosure and Aesthetics

25. The trailer is fully enclosed with sound-attenuating panels. What is the maximum allowable noise level (e.g., dBA at 7 meters) during operation, and are there preferences for panel materials (e.g., foam-lined steel vs. composite)?

Government Response - The enclosure shall include sound-attenuating panels to reduce operational noise in accordance with industry standards.

26. LED lighting is required on all sides for visibility and DOT compliance. Are there specifics for light placement, color (e.g., amber markers), or additional lighting (e.g., interior work lights)?

Government Response - No

27. What color scheme is preferred for the overall system (e.g., Bureau of Reclamation standard colors like safety yellow or white, or custom branding/decals)?

Government Response - The system shall follow industry-standard colors; no specific color or branding is required.

28. Are there requirements for corrosion protection (e.g., powder coating, galvanizing) on the enclosure, trailer, or pump components, especially for outdoor storage in New Mexico's climate?

Government Response - Corrosion protection shall meet industry standards for outdoor use; no specific coating or method is required.

General and Operational

29. The pumps support dust abatement and soil compaction. Are there any site-specific operational requirements (e.g., compatibility with brackish water, dust filters on air intakes)?

Government Response - The pumps shall operate under typical field conditions; no site-specific requirements such as brackish water compatibility or special air filters are required.

30. The warranty is minimum 12 months. Are extended warranties or specific service intervals (e.g., first oil change) desired?

Government Response - No

31. Orientation and training are included. What is the expected duration and content (e.g., hands-on demo, number of personnel)?

Government Response - Training shall cover operation and maintenance for approximately 20 personnel; no specific duration or format is required.

32. Are there any preferences for additional accessories (e.g., suction/discharge hoses, quick-connect fittings, remote start)?

Government Response - No.

33. The price must be all-inclusive. Can the Bureau provide guidance on any state-specific taxes or fees for delivery to Socorro, NM?

Government Response - The price shall be all-inclusive; any applicable New Mexico state or local taxes and delivery fees will be handled in accordance with standard government purchasing rules.