Tenders Are Invited For Preparation Of Design Documentation For The Task: Small Retention In The Municipalities Of The Parsęta River Basin

1. Preparation Of Design Documentation For The Task: Small Retention In The Municipalities Of The Parsęta River Basin1) Construction Of A Naturalistic Retention Reservoir In Tychów;2) Construction Of An Underground Retention Reservoir At Ul. Dolna In Tychów.2. Description Of The Subject Of The Order: The Order Includes The Preparation Of Two Comprehensive Documentation Regarding Retention Tanks: 1) Scope 1: The Subject Of The Order Is The Preparation Of Comprehensive Design And Cost Estimate Documentation, Obtaining A Building Permit And Providing Authors Supervision For The Task Titled Construction Of A Naturalistic Retention Reservoir In Tychów. As Part Of The Task, It Is Planned To Build A Naturalistic Open Retention Reservoir With A Retention Volume Of Approximately 4,000 M3. An Open Semi-Natural Retention Reservoir Will Be Built On Plots No. 583/5 And 583/18 Within 0042 Tychowo. Filtration Using Sand And Gravel With Appropriate Properties Will Be Used. Additionally, It Is Planned To Plant Water-Purifying Vegetation In The Reservoir On Approximately 1/3 Of Its Surface, While Maintaining The Diversity Of Species. The Designed Reservoir Will Have An Area Of ​​Approximately 0.4 Ha. It Is Planned To Create A Mineral And Plant Filter For The Absorption Of Biogenic Compounds Contained In The Discharged Water, In Particular Nitrogen And Phosphorus. Additionally, As Part Of The Task, It Is Planned To Develop The Area Around The Reservoir By Tidying It Up, Marking Out A Technological Path Enabling Access To Hydrotechnical Devices Made Of Permeable Surfaces, And Planting Native Plants That Are Resistant To Climate Change And Water Fluctuations And Increasing Biodiversity (Including Plantings Of Fruit Trees And Shrubs That Are Attractive To Insects And Birds). The Path Surface Will Be Designed As An Absorbent Surface, Which Is An Element Of The System That Additionally Collects Water From The Ground Surface And Then Delivers It To The Reservoir. A Detailed Description Of The Subject Of The Order Can Be Found In The Description Of The Subject Of The Order And The Draft Contract - Annexes To The Swz. 2) Scope 2: The Subject Of The Order Is To Prepare Comprehensive Design And Cost Estimate Documentation, Obtain A Building Permit And Provide Authors Supervision For The Task Titled: Construction Of An Underground Retention Tank At Ul. Dolna In Tychów. The Task Is Planned To Include, Among Others: Demolition Of The Existing Concrete Surface Along With The Built-In Infrastructure In The Form Of Channels, Sewage Wells, Settling Tank, Separator And Reconstruction Of The Existing Telecommunication Sewage System Which Is In Conflict, Excavations At The Site Of The Tanks Foundation Along With Replacement Of The Soil, Construction Of A Foundation Slab On Relief Piles For The Tank, Laying Of Power Cables, Foundation Of Rainwater Sewage Channels With Wells, Laying Of The Pressure Sewage Pipes, Installation Of A Single-Chamber Centrifugal Settling Tank, Separator And A