Project duration: May 1991 – June 1991.
Aquifer investigation surveys were carried out. Before the survey was conducted the elevation information and description of benchmarks covering the districts for this survey were collected from Department of Survey, Geodetic Survey Branch, as well as details of well location and description of locations. Elevation of the top and bottom of the tube well and relating benchmark references were carefully observed and documented in the field and computerised. Further, the sketches showing location, coordinating with available references such as school building, tree, pounds, etc. of each well, TWS were plugged in the district map.
Maximum necessary precautions were adopted to minimize the possible errors, such as instrumental, personal and errors due to natural sources.
– In Saptari and Siraha, the survey of 23 nos. of STW, 13 nos. of DTW, 7 CS was conducted.
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