2026-0227 Framework agreement for cleaning services for sewage treatment tanks in the Duisburg city area, term three years

Summary

The tender concerns a three-year framework agreement for emptying and cleaning tanks at sewage treatment plants in Duisburg. The contractor must also dispose of the material and prove disposal with a weighing slip. The bidder must take account of turnover, experience, staffing, insurance, registration and exclusion-ground requirements, as well as minimum wage and e-invoicing obligations during contract performance.