Measuring points and gauges are used to analyze groundwater and its spatial distribution, possible changes in the groundwater level and groundwater quality. That's why we work for municipal utilities, public authorities, but also for commercial and industrial companies to protect the quality of our most important commodity - drinking water.
We use the most modern drilling rigs and well drilling techniques, like the pessure grouting of the annular spaces by using a cementing Valve, in our patented procedure. From it result the necessary sizing of the measuring point development as well as the type and number of necessary investigations at or in the measuring point.
Exploration boreholes are drilled to explore the geological and hydrogeological conditions underground. The knowledge gained in this way is an important basis for further planning and investigations. We have specialized in carrying out pumping tests in open boreholes without having to expand the borehole with a level. We can provide references to depths of over 500 m. The NBB also has a wide range of options for drilling designs when it comes to exploration drilling. In addition to the air lifting and dry drilling already mentioned, core and pressure drilling can also be carried out. Our project team creates a detailed and digitally developed drilling profile in order to find out in advance which rocks and soil classes are present in the subsoil and whether the structure or the aquifer will be disturbed and whether the existing strata or groundwater require special protection..
According to the Water Resources Act, water pumping systems must be dismantled. The methods and services listed in the DVGW are planned and carried out by us. The aim is to fill the subsoil in the same layers.
We assess the initial geological situation and then create a dismantling concept in coordination with the responsible water authority. Over-drilling with and without pipe cutting, as well as backfilling or partial backfilling of the well, removal of the expansion pipework, resealing of the annular space by perforating the top pipes, grouting through the filter section and the dismantling of closure structures are our measures.
NORD Bohr und Brunnenbau GmbH
Randersweide 1 | D 21035 Hamburg
Fon +49 40 735 956 – 30
Fax +49 40 735 956 – 40
E-Mail info(at)nord-bb.de
