814.201WPOFederal Council OrdinanceJan 1, 1999Original source
The persons responsible for storage installations for liquids that may pollute waters that require authorisation must arrange for an external visual inspection to be conducted every ten years in order to check for defects.1
An internal visual inspection must be conducted every ten years for:
storage tanks with more than 250 000 l usable volume that do not have a protective construction or a double-walled floor;
single-walled underground storage tanks.
The persons responsible must arrange for the inspection of the proper functioning of the leak detection system in storage installations for liquids which may pollute waters every two years in the case of double-walled containers and pipes and every year in the case of single-walled containers and pipes.
Footnotes
Amended by No I of the O of 4 Nov. 2015, in force since 1 Jan. 2016 (AS 2015 4791). ↩
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