Foundation stone laid for Cube One of UTN (University of Technology Nuremberg)

Posted on 21 November 2022.

Since the purchase of the land by the State of Bavaria, the LGA Institut für Umweltgeologie und Altlasten GmbH has accompanied the formation of the UTN – the new Technical University of Nuremberg.

On November 18, 2022, Prime Minister Dr. Markus Söder then laid together with the Science Minister Markus Blume, Construction Minister Christian Bernreiter, the founding president at Nuremberg University of Technology, Prof. Dr. Dr. h.c. mult. Hans Jürgen Prömel, and the Mayor of the City of Nuremberg, Marcus König, the foundation stone for the first building on the campus – Cube One.

The time capsule with photos of the undeveloped area, a streetcar model, a building model and a USB stick with programming code is walled in (from left: Marcus König, Christian Bernreiter, Markus Söder, Markus Blume and Hans Jürgen Prömel)

The foundation stone is laid

The LGA Institut für Umweltgeologie und Altlasten GmbH contributed to the quick realization of the building project with the investigation and remediation of contaminated sites, with the supervision of the site clearance and with the preparation of a contaminated site and subsoil expertise (in cooperation with LGA Baugrund GmbH). Even the radon concentrations in the subsoil were measured by the LGA Institut für Umweltgeologie und Altlasten GmbH investigation department and the radon activity concentrations for the future building were estimated – harmless.

The LGA Institut für Umweltgeologie und Altlasten GmbH was also allowed to participate in the structural planning and in the framework planning for the UTN. Their greatest concern, to prevent senseless soil disposal with gigantic emissions of CO2 and waste of diesel fuel through intelligent soil management, found its way into the planning and was laid down in a progressive soil management concept together with the environmental protection office of the city of Nuremberg. For the construction of Cube One, therefore, only a few hundred tons of soil from a fuel spill had to be disposed of via biological cleaning – a great success for the environment!

New Mantelverordnung: introduction of EBV and adaptation of BBodSchV, DepV and GewAbfV

Posted on 04 October 2022

In July 2021, the legislature published the new Mantelverordnung (“Regulation on the Introduction of a Substitute Construction Materials Regulation, on the Revision of the Federal Soil Protection and Contaminated Sites Regulation and on the Amendment of the Landfill Ordinance and the Commercial Waste Ordinance”).

Classification of mineral waste

Substitute Construction Materials Ordinance (EBV)

The most important item is the introduction of the Substitute Building Materials Ordinance (EBV), which for the first time sets out nationwide and legally binding requirements for the production and use of mineral substitute building materials (including recycled building materials from construction and demolition waste, soil and dredged material, gravel for railway tracks). The EBV thus replaces, among others, the LAGA M20 leaflet.

Further information on the new regulations can be found here.

To give you an overview of the most important changes and help you prepare in good time, we have produced a brochure that you can download here:

Brochure on the New Mantelverordnung (German)

3D laser scanner measures and visualizes rock cellar in road embankment

Posted on May 10, 2022.

Determining the exact position of rock cellars or caves in relation to the ground surface requires precise surveying techniques. The smallest angular errors can “warp” the entire model and cause several meters of positional deviation above a certain corridor length, which is an unacceptable inaccuracy, especially for questions concerning building and traffic infrastructure.

3D scan of rock cellars under a building

However, the all-clear was given for the recently inspected basements. Besides a few structures in need of monitoring, the basements were mostly in good condition. The monitoring program is used to determine whether the monitored structures need to be rehabilitated or technically secured in the long term if their condition deteriorates.

Successful participation in various round robin tests

Posted on 07 March 2022.

The quality of sampling determines the accuracy of expert statements. Errors made here can no longer be cured in the subsequent steps.

Round robin test on explosive residues in soil     The Federal Environment Agency had invited engineering companies to this round robin test in Kempten. A plot of land contaminated by explosives was to be representatively sampled according to the rules of the “art of contaminated sites” (area composite sample of topsoil, effect pathway soil – man). Dr. Kunibert Eberlein and Simon Landgraf from our company were represented.

Sampling from an excavator shovel

Comparative measurement of groundwater sampling from a measuring point
In cooperation with four other offices or laboratories, we organized a comparative measurement at a groundwater measuring point. The analysis results (5 samples each for heavy metals and further inorganic parameters, 10 samples for LHKW), were comprehensively statistically evaluated. Fabian Ziegler, Hendrik Belz and Gerold Neumann participated from our office.

The results of the round robin tests on explosives residues are still pending.
The round robin tests for sampling at accessible and non-accessible excavations will be presented on 30.06.2022 within the framework of the GAB’s contaminated site symposium.
The statistical evaluation of the groundwater sampling was carried out by AIR – Analytik Institut Rietzler GmbH using the round robin evaluation software A45 from AQS Baden-Württemberg. In addition to the standard deviation of the on-site parameters, the zu-scores were determined for the individual samplers for the investigated organic and inorganic parameters. The results were made available to all test participants in a final report.