for abandonment 82 What equipment needs to be used for well installation? Drawings will be provided by Should a mud rotary method be used (which could result the Client to the successful in cross contamination) or do you require a hollow stem bidder. augur method of installation? How are vendors going to make sure they do not punch through the clay layer However, the Contractor has which is important to this project? Are conductor casings to submit methodology for required when drilling and installing wells past the clay approval. layer? The well construction drawing in the bid document is not available on line, can you please provide that? 83 How many soil samples are required during well The tables provided on pages installation? Do you require soil core samples to further 270 until 287 and the map on characterize the soil lithology? page 157 and also the tables on page 159 until 170 may be considered. Can we bid on each well to be installed rather than on Bid has to be on total length of 84 total length of the wells? If additional wells are required wells quoted per unit rate of then an accurate unit cost will be available to TSPCB for length of well installation. requesting additional wells. 85 In the bid document you recommended HDPE pipe for The contents of the bid the wells. We would like to recommend Schedule 80 PVC document holds good for this site. Please modify the well materials.
for abandonment 82 What equipment needs to be used for well installation? Should a mud rotary method be used (which could result in cross contamination) or do you require a hollow stem augur method of installation? How are vendors going to make sure they do not punch through the clay layer which is important to this project? Are conductor casings required when drilling and installing wells past the clay layer? The well construction drawing in the bid document is not available on line, can you please provide that? Drawings will be provided by the Client to the successful bidder. However, the Contractor has to submit methodology for approval. 83 How many soil samples are required during well installation? Do you require soil core samples to further characterize the soil lithology? The tables provided on pages 270 until 287 and the map on page 157 and also the tables on page 159 until 170 may be considered. 84 Can we bid on each well to be installed rather than on total length of the wells? If additional wells are required then an accurate unit cost will be available to TSPCB for requesting additional wells. Bid has to be on total length of wells quoted per unit rate of length of well installation. 85 In the bid document you recommended HDPE pipe for the wells. We would like to recommend Schedule 80 PVC for this site. Please modify the well materials. The contents of the bid document holds good
Pre%20bid%20clarifications%20for%20the%20NMK%20works.docx