news
Here you will find current information about the LGA Institute for Environmental Geology and Contaminated Sites. Our dedicated team, consisting of experienced geologists, geoecologists, geographers, as well as chemical and process engineering engineers, is working on current projects in the areas of soil contamination, contaminated building materials, waste management, geohazards, and environmental damage.

Every Stone Tells a Story
Die Erhaltung der historischen Zeppelintribüne am Dokuzentrum in Nürnberg ist für alle Beteiligten ein Mammutprojekt von historischer Dimension. Es verlangt Teamwork und ein Bewusstsein für das Ziel,…

New TRGS 521: Updated Requirements for Existing Mineral Wool
Im Mai 2026 wurde die TRGS 521 neu gefasst. Neben einer Anpassung an die aktuelle Gefahrstoffverordnung und die CLP-Systematik wurden insbesondere die Informations-, Dokumentations- und Schutzanforderungen konkretisiert.…

Successful surveillance audit in accordance with ISO 9001
Unser Unternehmen hat auch in diesem Jahr das Aufrechterhaltungsaudit nach ISO 9001 erfolgreich bestanden. Die SQS hat damit erneut bestätigt, dass unser Qualitätsmanagementsystem wirksam ist und dauerhaft…

Soil Science Insights into Urban Soils
Wie sieht der Boden unter der Oberfläche städtischer und stadtnaher Standorte aus? Dieser Frage gingen im April unsere Mitarbeiter des vorsorgenden Bodenschutzes für mehrere Projekte nach. Sie…

DAkkS Assessment: System in Focus
Im Rahmen der diesjährigen Überwachung unserer Akkreditierung nach DIN EN ISO/IEC 17025 führte die Deutsche Akkreditierungsstelle (DAkkS) eine ganztägige Systembegutachtung in unserem Hause durch. Ergänzend fand eine…

Preliminary contaminated site investigation at a clay pigeon shooting range
Ende Februar 2026 erkundeten die LGA-Sachverständigen Ira Stassinopoulos, Tobias Gebhard und Michaela Kukuk eine stillgelegte Wurfscheibenschießanlage. Die Anlage liegt versteckt am Rand eines kleinen Tals, das von…

Advanced Training for Experts under § 18 Federal Soil Protection Act (BBodSchG)
🤝 On February 4, 2026, Carlo Schillinger, Nina Forster, Michaela Kukuk und Ira Stassinopoulus participated as part of a strong professional network in the advanced training for experts under § 18 BBodSchG in Schwabach.

Happy Onboarding Ira!
😉 We are pleased to warmly welcome Ira Stassinopoulos to our team as an emerging specialist in the fields of contaminated sites and ecology.

Merry Christmas
As the year draws to a close, we would like to express our sincere gratitude to everyone who has placed their trust in us through orders, supported us, and accompanied us with respect and friendship throughout 2025.

Schadstoffe? Kannste ab – dann komm zu uns!
Wir wachsen – und suchen Dich! Für unseren Bereich Gebäudeschadstoffe benötigen wir frische Energie, Neugier und echte Anpack-Mentalität. Wenn Du Lust hast, in einem dynamischen Team spannende…

A young and dynamic team for SiBW
SiBW ensure that roads and buildings in mountainous terrain remain protected from rockfall. They must be inspected regularly.

Drone flight in the beer cellar – inspection and surveying, this time partly remote
The beer cellars of the Upper Franconian tunnel system were originally intended to be examined using the proven method: an engineering geological assessment of the rock quality combined with a detailed survey of the tunnels and the ground surface.

Participation in the 27th Geoforum Umhausen
From October 16–17, 2025, the 27th Geoforum Umhausen took place in Niederthai (Imst District, Austria), organized by the Geoforum Tirol Association.

New Expert for Protective Structures Against Alpine Natural Hazards
The Engineering Geology Department is pleased to welcome additional support for structural inspections: Since mid-September, Simon Landgraf has joined the team as the third member and certified expert for protective structures against alpine natural hazards.

From the Boat
Schadstoffe messen in stehenden Gewässern in Bayern mit der LGA-geo.

There's a lot happening on the water.
Zur Sicherung des bewährten Trinkwasser-Standards sind zahlreiche Maßnahmen nötig. Dazu gehört auch die Umgebungsprüfung.

Highly skilled rope access technician team from LGA
The rock team is growing – as is the number of rope access technicians performing rock inspections, as well as structural safety checks and assessments for LGA, all carried out via rope access.

Rockfall and Boulder Hazards in Focus: An Innovative Approach to Hazard and Risk Analysis
Rockfalls, including stone and boulder dislodgements, are among the most dangerous natural hazards worldwide. They are not only a natural feature of high mountain regions but also occur regularly in low mountain ranges...

Successful ISO 9001 Surveillance Audit
We are proud to announce that our company has successfully passed this year’s ISO 9001 surveillance audit. The SQS has once again confirmed the effectiveness and sustainability of our quality management system...

Asbestos-containing spacers in reinforced concrete structures
Between 1960 and 1993, asbestos-containing spacers and pipe sleeves/wall thicknesses were used in reinforced concrete construction, with the main period of use being from 1970 to 1985. Spacers are necessary to ensure sufficient concrete cover when forming the components.

Successful Participation in the Expert Training Course according to VDI 6202 Sheet 20.1
On March 28, 2025, Carmen Weiblen, Dominik Kisskalt, and Fabian Ziegler successfully passed the examination for the "VDI Expert for Asbestos in Building and Technical Installations" according to VDI 6202 Sheet 20.1...

Recycling 2025 Professional Conference
From Practice for Practice – under this motto, the Recycling 2025 Professional Conference took place in Stockstadt am Rhein from February 12-13, 2025.

Fluegelsberg is safe again and the peregrine falcon has been confirmed
The Fluegelsberg in the Altmuehltal is safe again. In 2021, the LGA identified significant deficiencies in the functionality and durability of the rockfall protection fence at the base of the rock formation during an inspection.

Successful RAL Certification
Our company has successfully achieved RAL certification! The RAL quality mark represents the highest standards of quality, tested reliability, and transparency – values that are of utmost importance to us and our customers.

Next Professionals inaugurate DCONex 2025
On the eve of DCONex 2025, the renowned specialist conference on pollutant management, the Next Professionals of the Gesamtverband Schadstoffsanierung e.V. (GVSS) gathered at the booth of Kluge Sanierung GmbH for an inspiring lecture series on current topics in pollutant remediation.

Successful Audits for sampling in the Contaminated Sites Sector
Expert activities in the field of contaminated sites must rely on qualified sampling. Therefore, LGA Institut für Umweltgeologie und Altlasten GmbH has implemented a comprehensive...

VDI guideline 6202 Bl. 3.1 on Asbestos-Containing Fire Dampers published
We have reported several times on the issue of asbestos-containing fire dampers. Recently, the VDI Guideline 6202 Bl. 3.1 'Asbestos-Containing Fire Dampers' has finally been published.

Demolition Consultant - certified by the German Demolition Association
Since 2013, our Managing Director Dr. Jürgen Kisskalt has been appointed by the German Demolition Association as a 'Certified Demolition Consultant' for the categories of General Demolition, Building Contaminants, and Waste Management.

Reaching New Heights at Year-End: Training for LGA Rope Access Technicians
Shortly before the end of the year, LGA rope access technicians Simon Landgraf, Simone Pflaum, Carina Schmitz, and Joschka Wischer completed their annual refresher training in Garmisch-Partenkirchen.

Fresh Breeze for the New Year: New Website, New Logo, Paperless Processes
We wish all our customers, partners, and interested parties a Happy New Year! Right on time for the New Year, we have updated our website. Feel free to browse through...

Safe flood protection
In these times of climate change, dust structures are becoming increasingly important. Testing for quality and safety requires specialist knowledge, and the LGA has the expertise.

Certified Soil Science Construction Supervision
The careful handling of soil has been a legal requirement since the revised Federal Soil Protection Ordinance came into force in August 2023. For sensitive soils and areas larger than 3,000 m², a soil protection plan should be developed and implemented.

"Every year again..." – The expert inspection and assessment of personal fall protection equipment
Before and after each use, our specially trained rope access technicians critically inspect the condition of the personal fall protection equipment. After all, safety is paramount when working at heights…

Demolition of the historic coal silos of N-Ergie.
LGA Institute for Environmental Geology and Contaminated Sites supports the local energy producer N-ERGIE from exploration to deconstruction.

Recognition as a body for radon measurements in workplaces
On September 5, 2024, we were recognized by the Federal Office for Radiation Protection as a facility for measuring Radon-222 activity concentration in workplaces. We are pleased to offer our customers quality-assured services as a recognized measurement facility...

Experts for protective structures against alpine natural hazards
From now on, our colleagues Simone Pflaum and Carina Schmitz will be listed as experts for protective structures by the Bavarian Chamber of Civil Engineers. The registration committee made this decision based on the submitted…

Membership in the RAL Quality Association "Pollutant Remediation"
We are pleased to announce our new membership in the RAL Quality Association for Pollutant Remediation. As a reliable guide for companies and public clients, the RAL quality mark stands for high-quality,…

"Asbestos – Article in the NN from 02.07.2024"
Our expert Dr. Jürgen Kisskalt in conversation with the Nürnberger Nachrichten about the latest developments on the topic of asbestos. You can find the article here. Unfortunately, we cannot provide the…

IMPULSE magazine now also online
Twice a year, the IMPULSE is published, the LGA's newspaper with news and articles from the construction industry. It can be requested as a free print magazine. Now comes the...

Successful recertification according to ISO 9001
Based on an audit on May 17, 2024, SQS evaluated our quality management system. The practical implementation of sampling was also specifically reviewed. SQS…

Early planning serves soil protection
Where construction takes place, neighboring soils are also affected. Early planning with the experts from LGA-geo enables the smooth implementation of construction projects.

"Asbestos-Containing Fire Dampers – New VDI Guideline"
Virtually all fire dampers (FD) produced until 1988 contain asbestos components. These old dampers are still in use by the millions. We have already informed about this several times…

In-house seminars
On various topics from our fields of work, we offer you customized in-house seminars: Our experts can comprehensively address your topics and questions. The number of possible participants and…

Notification as a testing laboratory for water investigations in Bavaria (LaborV) for the sampling of groundwater and surface water
For water investigations in the legally regulated area, such as the enforcement of the Water Resources Act or the Bavarian Water Act, testing laboratories require approval according to the Laboratory Ordinance (LaborV). As of March 22, 2023…

Approval according to § 18 BBodSchG
According to § 18 BBodSchG, "experts and investigation bodies that perform tasks under this law must possess the necessary expertise and reliability for these tasks, as well as the required…

Building Contaminant Investigation Asbestos – VDI Guideline 6202 Sheet 3 Provides Legal Certainty
Asbestos-containing building materials are still widespread in many buildings. Thus, all buildings from before 1994 are considered to be potentially asbestos-contaminated. This means that especially during renovation or…

Construction waste disposal – Guidelines of the new LAGA M23 on asbestos.
The LAGA M23 ("Enforcement Aid for the Disposal of Asbestos-Containing Waste") regulates the disposal of asbestos-containing waste. A new version dated November 29, 2023, is now available. It will…

Tightrope walking under the bridge: LGA rock team undergoes training to become Level 1 and 2 rope access technicians.
Actually a cozy spot that reminds one of a vacation: The Menach meanders babbling through the green meadow. An old, disused railway bridge, occasionally crossed by a cyclist…

Ordinance on the Protection of the Soil and the Ordinance on Substitute Building Materials
The production and use of mineral substitute building materials in the construction sector have been legally regulated anew as of August 1, 2023.

Successful DAkkS audit.
For our assessments of soil, water, building materials, and waste, we place the highest value on qualified sampling. Our comprehensive quality management system according to DIN EN ISO/IEC 17025:2018 is accredited by…

Equipped with spades and Pürckhauer augers: Internal LGA training on soil description according to KA5.
On October 18 and 25, 2023, a group of the LGA team was trained in the preparation, execution, and documentation of soil description according to KA5. The training was led by our…

From miracle cure to super poison
Extremely stable inorganic compounds, once used for Teflon pans and outdoor clothing, must now be removed as suspected environmental toxins. LGA-Geo has the experts for this.

Flow modeling – A valuable forecasting tool for future heavy rainfall events.
Repeated heavy rainfall in 2017 and 2019 led to mudflows in the municipality of Kauerndorf, blocking the federal highway B289. As a precautionary measure to prevent further mudflows, it is planned to…

Rockfall protection fence, and then what? On the necessity of regular structural inspections.
High demands are placed on protective structures (SiBW) against rockfall and blockfall regarding load-bearing capacity, serviceability, and durability. It is often forgotten that the construction of rockfall protection fences, nets, rock bolts…

3D laser scanners survey basement facilities
Geologist Carina Schmitz examines basements in Franconian cities and uses 3D laser technology to determine if the streets above them are safe.

Why the noble gas radon can become so dangerous.
In certain areas, such as the Fichtelgebirge in Bavaria, radon is released. Why this noble gas can be dangerous to humans and how its presence can be tested.

Asbestos in old fire dampers
Asbestos fibers can cause cancer. Dr. Jürgen Kisskalt on remediation in existing buildings.
