Sewage treatment population diffusion rate in Kumamoto reaches approximately 85%, and non-spread measures maintenance becomes the final stage and, after period of 10 nengainari, invites the times of full-scale maintenance.
It is serious that it is expected that it is 13% decrease (an average of 11% of whole country decrease) as for the population of Kumamoto 20 years later and is connected for decrease of fee for use income according to the population by estimate in the future when National Institute of Population and Social Security Research calculated even if we compare influence to give operational management of sewage treatment with whole country average. Furthermore, increase of reconstruction update expense of existing facility, finance of the local government cope with there being in the severe situation, and formation and Kumamoto earthquake of recycling society is demanded from lesson and disaster prevention decrease evil measures that we did, and it is necessary for prefecture and the municipalities to aim at construction of sustainable sewage treatment system which assumes effective operational management basics in future.
Prefecture and the municipalities devised "Kumamoto household wastewater processing design 2016" consisting of non-spread measures maintenance plan, long term operational management plan to assume 20 years plan period, odeirikatsuyokeikaku, disaster prevention decrease evil plans from now on to cope with these problems.
For more details, please see the following file.
Kumamoto household wastewater processing design 2016 [details version] (PDF: 16.69 megabytes)