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Distribution of the Contaminated Sites on the Territory of the Czech Republic
Suchánek, Zdeněk
The National Inventory of Contaminated Sites (NIKM 2 project) was completed in December 2021. We present the output regarding the distribution of inventoried, contaminated and potentially contaminated sites (CSs) in 205 administrative districts - Municipalities with Extended Powers ("small districts"). The filled database of the Contaminated Sites Registration System (SEKM) [1] serves as the main source for the so-called Planning Analytical Materials, i.e., for spatial planning at the level of Municipalities with Extended Powers. Until now, incomplete documents on CSs were used. After the completion of the inventory, the updates of the territorial analytical documents in this matter can be based on relevant data.
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The Inventory of Contaminated Sites in the Czech republic (NIKM 2019–2021)
Suchánek, Zdeněk
The complete National inventory of contaminated sites (NIKM) took place in the years 2009 – 2021 in two phases, both co-financed from the EU Cohesion fund. The basic goal of NIKM was the capture and basic evaluation of the most complete number of contaminated sites/potentially contaminated sites (CSs hereinafter) on the territory of the entire country. The 1st stage of NIKM focused on the methodology of the inventory, its testing and collection of the main data sources. The 2nd stage of NIKM (2018-2021) was completed on 31.12.2021. CENIA teams and suppliers selected via public tender participated in the project. 30,020 CSs or CSs clues were inspected of which 8,643 sites were evaluated as CSs. From other sources, 1491 newly evaluated localities were registered. In result, a total of 10,134 assessed CSs were registered. These sites have a record at least in the scope of the summary form, including the evaluated priority of needed corrective measures. In addition, maps of CSs distributions in the 205 municipalities with extended powers (“small districts”) of 14 regions were processed, for each of the three priority categories (A, P, N). The result of NIKM is the filled in System for registration of contaminated sites (SEKM) (10,134 records), 14 inventory reports for individual regions and the Inventory Report for the Czech Republic.
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The issue of access to land and buildings within field works of environmental projects implemented in the public interest
Suchánek, Zdeněk
Various field activities are also carried out in the public interest, which concerns a few natural science disciplines. In environmental fields, on-site observation or sampling is the basic tool for collecting information, which is usually processed into records of registration databases. In the case of the contaminated site inventory project, the right to visit sites and collect information on site is not specified by law in the Czech Republic. On the contrary, the field worker must respect the legal requirements regarding the protection of property, privacy, and the processing of personal data. In the National Inventory of Contaminated Sites (NIKM) project, a field verification of conditions at known or suspected sites was one of the basic methods of updating and supplementing the registry database of contaminated sites. About 30,000 locations were included in the field verification. The project NIKM was completed by the end of 2021. Subsequently, in the presented case study, we evaluated the extent and types of problems that were associated with site visits and analyzed the reasons for not examining them "in situ". Since the entry of non-visiting and/or non-reconnaissance of the site cannot be completed in a separate section in the Contaminated Sites Registration System (SEKM) and sice there is no prescribed or required exact statement that could be used as a search / filtering parameter, a full-text search in tabular exports in EXCEL format was used for database analyses, according to various relevant statements, words, and parts of words. In the NIKM project, the share of 317 cases of non-visiting the location was only 1.1% of the total number of approved (evaluated and excluded) locations, and the share of 171 unvisited evaluated locations from the number of evaluated locations was 1.7%. At the same time, the number of 171 evaluated locations represents only 0.6% of all approved locations. These are values that can be considered acceptable from the point of view of the quality of the records of the entire SEKM3 database.
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Hydrogeological and hydrological data contained in records of contaminated sites in the SEKM database
Tylčer, Jiří ; Suchánek, Zdeněk
As of May 2022, approximately 10,200 contaminated and potentially contaminated sites are registered in the database of the Contaminated Sites Registration System (SEKM) updated by the National Inventory of Contaminated Sites project (NIKM, 2018-2021). Each structured record of such site contains a number of hydrogeological and hydrological characteristics, which serve primarily to assess the possibility of contamination migration. The most important synthetic parameter of the hydrogeological and hydrological conditions at the site is the "Possibility of migration of contamination". The basis for the assessment is the assignment of the site to one of the five groups of types of hydrogeological structures of contaminated sites. For the set of localities of the highest priority category A, we demonstrate statistical data on the occurrence of the monitored "hydro" parameters, broken down by five types of migration options, for each subcategory A1, A2 and A3. The summary map of the territory of the Czech Republic shows the location of 451 subject contaminated sites of priority category A.
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