NISSAKU CO., LTD.
We carry out well facility work and geological surveys, based on our achievements since our founding in 1912.
We work to provide meticulous services using our strengths in
not only the three sectors of wells, civil engineering and surveys but also in the manufacturing sector, as well as our store of technology and experience.
In addition to expanding our business nationwide as Japan's first well construction company, we are also expanding our business overseas through ODA.
NISSAKU CO., LTD.
|Address||199-3, 4-Chome Sakuragicho, Omiya-ku, Saitama City , Saitama, Japan 330-0854|
|Number of employees||269|
|Main products, processing technologies and services||Well-drilling works, Geological surveys, Construction consultants|
This is an emergency-use well installed in the grounds of Nissaku. The hand pump attached to the well uses in the pumping part a bellows expansion type that does not require
excessive force to operate. Further, since the structure of the well is such that the pumping part is below the water level, there is no need to prime the well; even in a well with low groundwater level, the well demonstrates excellent pumping capacity.
In addition to vertical electrical prospecting, we use high-density electrical prospecting
that can show the subsurface in two-dimensional cross-section, to obtain an understanding of the subsurface, including the situation relating to aquifers. We also carry out groundwater surveys in bedrock areas using electromagnetic sounding (TEM horizontal loop
method) or radioactivity survey. Using these data we also look at the reserves of groundwater, its recharge rate and plans for use, and offer proposals for the conservation of the groundwater environment.