Preparation of Addendum No. 1 to the Geological Works Project, Water Pumping and Construction of a Monitoring Network in the Former Siersza I Mining Area

Summary

The tender concerns the preparation of Addendum No. 1 to the geological works project for long-term water pumping in the former Siersza I mining area in Trzebinia. The contract includes designing and constructing a monitoring network consisting of 6 additional piezometers and 1 infiltration well. The service period is 12 months. Offers must be submitted electronically in Polish by 1 September 2026 at 08:00, and the price is the only award criterion. An electronic auction may be held if at least two non-rejected offers are submitted; the auction lasts 20 minutes and the minimum bid reduction is 0.1% of the total gross price of the best-rated offer. A bid guarantee of PLN 6,200 is required.