Q_A_-_RFQ_140A1321Q0005_-_Groundwater_Mnitrng___Soil_Smplng_(Kotzebue__AK)_0001.pdf

RFQ 140A1321Q0005 - Groundwater Mnitrng & Soil Smplng (Kotzebue, AK) Questions Received as of 5/24/2021 and BIA Answers

1. Are the historic reports available for review? Yes. Attached at the following:

• 2020 Site Characteristic, Limited Removal Action, and Groundwater Monitoring (2021.4.27 Site Characterization Ltd Removal Act Gwater Monitoring)

• 2019 Underground Storage Tank Removal and Groundwater Monitoring Report (2019

Underground Storage Tank Removal and Groundwater Monitoring Rpt)

2. How many wells will require sampling?

Six. The six wells that are developed as part of this proposal; however, if there is free product, then there would be no sampling.

3. How many soil samples will be submitted to the laboratory?

Estimate 30 for cost purposes and exact total to be determined in the workplan development.

4. Will all or some samples be submitted for GRO, DRO/RRO, PAH, and BTEX?

Yes. All samples shall be submitted.

5. Can you provide well construction logs?

Appendix B - Field Forms, Section 3.5 on page 17 (2016.01.01 SCReportAppendixB).

6. What are the well diameters?

2" pipes on existing wells.

7. What are the following measurements for each well (assuming the question is based on existing wells):

Depth to Water Total Well Depth Groundwater elevation Top of casing elevation

For this question, refer to Appendix B - Field Forms (2016.01.01 SCReportAppendixB.

Same file to question #5.

8. We will not be collecting groundwater samples from any of the existing wells; we will only collect samples from the wells we install. Is that correct?

The six installed wells are the only ones that will be sampled.