Regulations on underground penetration

　Businesses must not infiltrate water or other liquids pertaining to the work of manufacturing, using, treating, and storing underground infiltration prohibited substances listed in the following table (Article 29, Paragraph 1 of the Ordinance).
　In addition, a company that manufactures, uses, treats, and stores underground infiltration prohibited substances must have the following structure when installing facilities related to the same work (Ordinance Article 29, Paragraph 2).
①The floor is an non-permeable material such as concrete that can properly prevent underground penetration of prohibited substances, and depending on the type and properties of underground infiltration prohibited substances handled on the surface, covered with chemical-resistant materials as necessary Or measures have been taken to prevent the penetration of underground infiltration prohibited substances, such as installing a saucer of a material that can prevent underground infiltration under the facility related to the work. (Article 36, Item 1 of the Enforcement Regulations)

②Measures to prevent the outflow of underground infiltration prohibited substances, such as installing a solution embankment around facilities that handle underground infiltration prohibited substances, if necessary according to the amount and work of underground infiltration prohibited substances, have been taken. thing. (Article 36, Item 2 of the Enforcement Regulations)

※1 Excludes human waste and other items related to the application of sewage, livestock excrement, and fertilizers caused by living.
※2 A wastewater treatment plant that treats wastewater from establishments where air standards apply facilities stipulated in the Act on Special Measures against Dioxins are installed and sewage discharged from establishments where air standards apply facilities stipulated in the Act are installed. Limited to wastewater.