Tenders Are Invited For System For Pre-Purification Of Rainwater And Meltwater Of Lake Ełk - Reconstruction Of Rain Sewage And Pre-Purification System In Ul. Wyszyński In Ełk

1. Subject Of The Orderthe Subject Of The Order Is The Construction Of A System For Pre-Treatment Of Rainwater And Snowmelt Water Of Lake Ełk - Reconstruction Of The Storm Sewage System And The Pre-Treatment System In Wyszyńskiego Street In Ełk (Installation Of Separators On One Of The Rainwater Channels Of Lake Ełk And Installation Of Sediment Wells), Carried Out As Part Of The Project Entitled Water Is Wealth. Improving The Condition Of Water Reservoirs No. Ltpl00368 Co-Financed By The European Union Under The Interreg Vi-A Lithuania-Poland Cross-Border Cooperation Program 2021-2027. The Scope Also Includes The Reconstruction Of Existing Surfaces, Small Architecture Elements, Fences, Green Areas, Etc. After The Works, As Well As The Removal Of Conflicts By Relocating Sections Of Existing Lighting And Mv Cables To A New Location. As Part Of The Reconstruction Of The Drainage System, The Existing Wells, Canal And Outlet To The Lake Should Be Dismantled And A New Rain Canal With Wells Should Be Constructed Using The Excavation Method. A Two-Chamber Pre-Treatment System With A Separator And A Settling Tank Should Be Built On The New Rainwater Sewer. The Separator And Settling Tank Should Be Mounted On A Reinforced Concrete Slab. Min. 20Cm And Load Capacity Min. 300Kn. Make A New Outlet To The Lake In The Place Of The Existing Outlet And Pave It With Stone And Grouting On A Cement-Sand Bedding With A Width Of Min. 1 M From The Outlet In Both Directions (Along The Coastline) And Above The Outlet Min. 1M. Immediately Before The Outlet, Reinforce It In The Form Of Steel Sheet Piles Driven To A Depth Of Min. 2M And A Length Of Min. 3M. Leave The Sheet Piles In The Ground Approx. 5 Cm Below The Outlet Stream. As Part Of The Expansion Of The Technological Ramp, A New Pol-Bruk Surface (8 Cm Cubes With An Area Of ​​Approx. 82 M2) Should Be Replaced With The Existing Hardened Subgrade, And On The Widening Of The Ramp Within The Pre-Cleaning System, A New Pol-Bruk Surface (8 Cm Cubes With An Area Of ​​Approx. 67 M2) Should Be Made With Construction Of The Foundation And Replacement Of Soil To A Depth Of Min. 2M. Outline The New Surface With An Embedded Inrun Curb Placed On A Concrete Footing. Direct The Surface Slopes To The Surrounding Area In Line With The Existing Gradeline. Reconstruct The Lawn With A Layer Of Min. 15 Cm Of Hummus. As Part Of The Reconstruction Of The Bituminous Surface Of Wyszyńskiego Street, Use A Structure Consistent With The Existing One, Using Overlaps Of Bituminous Mass, Min. 1.0 M For Each Layer. Resurface The Entire Width Of The Road. In The Scope Of Electrical Works, It Is Required To Eliminate Conflicts By Relocating The Existing Lighting Power Cables (Under The Ownership Of The Ełk Municipal Office) And Medium Voltage Cables (Under The Ownership Of Pge) In Accordance With The New Layout Of Utilities Included In The Construction Design. The Cables Should Be Moved To A New Location Using The Existing Cables As Part Of The Spare L