The Subject Of The Contract Is The Design And Execution Of The Expansion And Modernization Of The Sewage Treatment Plant In Truskaw, In The Izabelin Commune. The Order Is To Be Implemented In The Design And Build Formula And Includes: 1) Stage I - Preparation Of Design And Cost Documentation For The Expansion And Modernization Of The Sewage Treatment Plant, Together With Obtaining Final Decisions On Building Permits And/Or Certificates Of No Objection To The Submitted Applications Construction;2) Stage Ii - Construction Of Warehouse Facilities In The Technology Of Modular Prefabricated Elements With An Area Of Approx. 500 M2, Together With Obtaining For The Employer The Final Decision On The Occupancy Permit Or Obtaining Confirmation That No Objections Have Been Raised To The Submitted Notice Of Completion Of Construction;3) Stage Iii :A) Construction Of A Second Radial Secondary Settling Tank With A Separation Chamber And Technological Networks Of The Sewage Treatment Plant - Construction Of A Second Radial Secondary Settling Tank To Improve The Process Of Sedimentation And Separation Of Sludge (Separation Of Separated Sludge To Clarified Sewage). Modernization Of The Scraper Of The Existing Secondary Settling Tank; B) Construction Of An Averaging And Retention Tank For Sewage Flowing In Through The Sanitary Sewage System And Delivered By Septic Tankers, Together With An Installation For Oxygenation Of Sewage And Management Of Malodorous Substances, And Construction Of Inter-Facility Technological Networks Of Sewage Treatment Plants. The Construction Of The Averaging And Retention Tank Is Aimed At Optimizing The Operation Of The Sewage Treatment Plant Consisting In Changing The Concentrations And Flows Of Sewage Over Time. In Addition, Full Air-Tight Sealing Of The Tank Will Be Carried Out, Along With Installations And Installation Of A Biofilter In Order To Eliminate Odor Nuisances; Water Supply And Sewage System. Adaptation Of The Unused Attic Into The Usable Attic With A New Functional Division Of Rooms, I.E. A Laundry Room And A Drying Room, A Sanitary Room, A Storage Room For Handy Tools, An Archive, Cloakrooms And Changing Rooms, A Social Room (The Total Area To Be Adapted Is Approx. 136 M2). D) For The Benefit Of The Employer, Final Decisions On The Occupancy Permit Or Obtaining Confirmation That No Objection Has Been Raised To The Submitted Notice Of Completion Of Construction For The Completed Facilities Under This Stage, 4) Stage Iv - Execution Of A Hydraulic Model And Zoning Of The Water Supply Network In The Izabelin Commune. Separation Of Closed And Metered Areas Of The Water Supply Network In Order To Conduct Diagnostics Regarding Pressure Profiles And Test The Hydraulics Of The Network And Water Supply Facilities. Construction Of Zone Chambers Equipped With Devices Recording Instantaneous Water Flows Along With The Installation Of Pressure Regulators. Equipping The Measuring System With A Data Transfer System To The Visualization Application Server.
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