Art. 8

(Art. 5 para. 3 and Art. 6 para. 5 WRFA)

1. The supervisory authority shall examine the documents submitted to it with regard to compliance with the requirements for the technical safety of the water retaining facility.In the case of retention basins and structures for stabilising channel beds, the installation of bottom outlets and bottom sluice gates is not mandatory.
2. The planning approval specifies the documentation to be submitted by the holder of planning approval to the supervisory authority before and during construction, and on completion thereof.
3. During the construction phase, the following documentation in particular may be requested:
   1. results of geological surveys and geotechnical tests;
   2. results of pressure grouting or other geotechnical measures carried out in order to stabilise and make the subsoil watertight;
   3. the results of the material tests;
   4. results of surveillance;
   5. construction reports;
   6. reports on special occurrences.
4. On completion of the construction work, the following documentation in particular may be requested:
   1. a summary and evaluation of the geological surveys and geotechnical tests;
   2. a summary and evaluation of the pressure grouting or other geotechnical measures carried out in order to stabilise and make the subsoil watertight;
   3. a list of the materials used during construction, and an evaluation of the material tests;
   4. modifications to the construction project;
   5. drawings of the facility as built;
   6. types and locations of monitoring instruments.