ATT 4 - QAs (1) - FA813226Q0048 - Reverse Osmosis Membrane Replacement.pdf

QUESTIONS AND ANSWERS

FOR

SOLICITATION # FA813226Q0048

Reverse Osmosis Membrane Replacement (Serv P26-054)

Marc J. Kreienbrink, Contracting Officer Kylie McMichael, Contract Specialist

NAME TITLE ORG PHONE # EMAIL

Mary Katherine

Maraschick Process Engineer

PMXG/MXDECA 405-734-

mary_katherine.maraschick_randolph@us.af.mil

Christopher Ray Chemical Engineer

PMXG/ MXDECA 405-582-

christopher.ray.38@us.af.mil

1. Manufacturer/ Model Numbers Question: Can the Government identify the manufacturer and model numbers for each reverse osmosis system?

Answer: Please see ATT 2 – Reverse Osmosis Membrane Replacement – Equipment List

2. Part Numbers Question: Are the existing membrane part numbers available, or may the Government provide the current equipment nameplate information?

Answer: Please see ATT 2 – Reverse Osmosis Membrane Replacement – Equipment List

3. Brand Name or Equal Clarification Question: Does the requirement call for OEM membranes only, or will equivalent membranes meeting or exceeding the original specifications be considered?

Answer: This is not a brand name or equal requirement. Equivalent membranes meeting or exceeding the original specifications will be considered. Please see the PWS (ATT 1) for details on the services required. Please see the CSS for evaluation factors.

4. PWS Description of Services – 1.0 Scope Question: Are all replacement O-rings, seals, and consumable components expected to be included in the contractor's quotation?

Answer: Yes

5. Lockout/Tagout Question: Will the systems be taken out of service by Government personnel prior to contractor arrival, or is complete lockout/tagout and system isolation the responsibility of the contractor?

Answer: Responsibility of contractor.

6. PWS 1.28 Visitor Pass, and PWS 1.11 Hours of Operations

Question: Are there any base access, security, escort, or scheduling requirements that contractors should account for during performance?

Answer: Please see PWS 1.28 Visitor Pass for base access instructions. Please see PWS 1.11 Hours of Operations for scheduling considerations.

7. Site Visit Question: Is a site visit available or recommended prior to submitting quotations?

Answer: No. There will be no site visit for this requirement.

8.

Question: Following membrane replacement, are there any specific water quality testing, performance verification, or commissioning requirements beyond those identified in the solicitation?

Answer: pH 6.3-7.5, alkalinity 40 ppm, color 150 units, turbidity 30 units, suspended solids 30 ppm, TDS 50 ppm, calcium hardness 50 ppm, total hardness 70 ppm, chlorides 10 ppm, silica 10 ppm

9. Incumbent Information Question: 1. Is there any incumbent contractor information or previous contract number that may be released for market research purposes?

2. Is this requirement a follow-on to a previous contract or purchase order?

a. If so, could you please provide the previous contract or purchase order number?

b. Was this work previously performed under a broader maintenance contract, or was it a standalone membrane replacement requirement?

c. If available, could you identify the incumbent contractor or advise where that information may be publicly obtained?

Answer: No, this is a new requirement.

10. Installation Question: Can you confirm there is minimum of 48’’ of clearance on each end of all the RO membrane housings to allow for removal of old membranes and installation of the new membranes.

Answer: Yes.

11. Membrane Question: a. What are the current membranes you are using now?

b. Would you like to keep them the same or just have equivalents?

Answer: a. Please see ATT 2 – Reverse Osmosis Membrane Replacement – Equipment List

b. This is not a brand name or equal requirement. Vendors may quote on the current membranes or equivalent membranes meeting or exceeding the original specifications.

Please see the PWS (ATT 1) for details on the services required. Please see the CSS for evaluation factors.

12. Hours of Operations

Question: Can this work be performed during normal daytime working hours 8 AM - 4 PM, or do we need to figure premium labor for after hours?

Premium labor would not include weekends or holidays unless specifically directed by the customer.

Answer: Please see PWS 1.11 Hours of Operations for scheduling considerations.

13. System Info/Pictures Question: Can the Government kindly provide the following information:

a. What operating pressure does the systems use? Is it 200 psi, or 100 psi?

b. Could you provide some pictures, such as the end caps and an overall photo of a system?

Answer: Membrane feed pressure and membrane outlet pressure is 200-300 psig.

As evidenced by the signature(s) below, I (we) certify that any supporting data contained herein, which is our responsibility, is both accurate and complete.

Christopher Ray

COGNIZANT POC NAME

Chemical Engineer, PMXG/ MXDECA

TITLE AND OFFICE SYMBOL SIGNATURE AND DATE

Mary Katherine Maraschick

COGNIZANT POC NAME

Process Engineer, PMXG/ MXDECA

TITLE AND OFFICE SYMBOL SIGNATURE AND DATE