Supplementary Explanations

3.1　Reduction of water use
Ways of reducing water use include using rainwater or recycled water for miscellaneous purposes (such as for toilets, sprinkling, cleaning, and cooling) and reusing wastewater generated in manufacturing processes. Additionally, water-saving equipment such as water-saving packing and nozzles can be used alongside worker education to conserve water

3.2　Pollution prevention (wastewater, sludge, etc.)
Pollutant emissions and waste generation must be minimized or eliminated either at the source or by adding decontamination equipment; changing the processes associated with production, maintenance, and equipment; or applying other means. Controlling channels of contamination includes checking whether site water channels are free from contamination and are protected from contamination (that there are no pools of standing water or grease/oil slicks near storm drains, etc.) and that emergency response equipment is in place (for example, shutoff valves and stopcocks to prevent outflow or leakage of clean water and sewage due to a plant accident or natural disaster; in the case of leaks or overflows, rainwater basins or sewage basins and storage reservoirs are considered to be insufficient), etc. Major laws and regulations in Japan include the Water Pollution Prevention Act, Act on Prevention of Marine Pollution and Maritime Disaster, and the River Act.