RFP No. 72066822R00002_Amendment No. 2_20 Apr 2022_Signed.pdf

RFP No. 72066822R00002 USAID/South Sudan Juba Compound

Wastewater Treatment Plant Installation Project Amendment No. 02

Wastewater Treatment Plant Installation (Juba WWTP) Project

AMENDMENT No. 02

The purposes of this Amendment No. 02 to RFP 72066822R00002 are:

1. To revise specific sections of the solicitation in Section C; and

2. To respond to questions and requests for clarification that were received on or before

April 18, 2022. Please refer to Attachment A of this amendment.

Except as so stated, all other terms and conditions in RFP 72066822R00002, as previously amended, remain the same.

PART 1: SPECIFIC CHANGES TO RFP 72066822R00002:

I. Under PART I – THE SCHEDULE, SECTION C, make the following changes:

Remove Section C 1.03 subheadings H and I and replace with the following:

“H. Equalization tank size must be no less than 5,000 gallons.

I. Sludge settling storage tank must be no less than 3,500 gallons. Tank bottom must slope to the drain toward the withdrawal pipe. The tanks must be able to be serviced by a suction truck for withdrawal of sludge. The tank bottom slope is recommended to be of no less than 1:4 and no greater than 1:12 for this application.”

PART 2: RESPONSES TO QUESTIONS

Attachment A hereto contains the questions received on or before April 18, 2022, and responses thereto.

[END OF AMENDMENT NO. 02]

ATTACHMENT A

No. Question Response

1 Please share O&M manual data. O&M Manuals will be provided at time of award.

Please share an updated As-Built drawing if available. No as-built drawings exist.

There are site limitation spaces for new WWTP in the EC and RC area based on on-site visits. The area needed for each package includes a 20' container size for WWTP, 10K Gallon EQ tank, and 5K gallon sludge Holding tank. Please confirm the government can provide the required space.

There is adequate space on both RC and EC compounds to accommodate, however, it is the contractor's responsibility to investigate these conditions.

What is the frequency of existing WWTP sludge removal from the holding sludge tank? What is the size of the existing sludge holding tank?

The sludge is currently stored within the existing WWTP and is removed monthly. Holding tank size: RC - 14 cu m, EC - 7 cu m.

Manufacturer’s typical recommendation for 10,000 GPD MABR system considering influent criteria and meet effluent standards is 5,000 gallons EQ Tank and 3,500 gallons sludge holding tank (assuming sludge evacuation can be done once a month). Can we request to re-consider the RFP requirement based on-site situation and manufacturer considerations?

We concur with the proposed reduction of size of both sludge holding tanks and the RFP has been amended accordingly.

RFP is called existing EC WWTP as back up for new WWTP; however, concerning start-up and shutting down of backup system is so challenging and is not a feasible option. Bidder proposes to use the existing WWTP as an EQ tank and sludge holding tank in EC area.

We do not concur with your recommended approach and offeror is instructed to prepare its offer in accordance with the RFP requirements.

Any data to clarify wet well size of lift station is really helpful. Lift station wet wells in RC and EC are 3 cu m each.

Is there any lab equipment as part of the existing WWTP? What is the requirement of quality testing?

There is no laboratory equipment as part of the existing WWTP. Please refer to the RFP for any requirements for quality testing.

9 Any bypass for the lift station is considered? This question is not clear.

Please advise us what type of a pumps is used at the existing lift stations? Grinder pump? Open impeller pump? Etc. Xylem submersible impeller pumps

Is there any logbook (quality and quantity daily reports) available at the site? If yes, can we access the last three months' data? We need to add it in the technical proposal Phase II. There is no logbook or quality and quantity reports.

Part 2- Proposed Prices 2.2 Draft Schedule of Value: can we submit a Microsoft excel sheet for the schedule of value? This will guide us to provide accurate and easily understand data for the government. Schedule of Values in Excel Spreadsheet is acceptable.