Bids to retrofit the Auburn Lake Trails Water Treatment Plant have been made public by the Georgetown Divide Public Utility District.
The low bid came in at $10.8 million and was submitted by Auburn Constructors Inc. of Sacramento. The highest bid was for $12 million and was submitted by RGW Construction.
Only four of the seven firms previously pre-qualified to bid on the project chose to submit a proposal.
Psomas, the engineering firm that designed the plant for GDPUD, had estimated its cost to be $9.3 million.
The district won’t award a contract until it receives a report from Webb Owen, an engineer the board hired last month to do an independent review of the plans for the water treatment plant. The board expects to use his report to determine if any modifications can be made to the plant that will reduce its price or whether to proceed with the plant as designed.
The district has financing to cover $8.7 million of the cost but may seek additional funding from the U.S. Department of Agriculture in addition to other sources. Included in the $8.7 million is a state grant of $685,550 that had stipulations attached to it including a June deadline, which has now passed.