During the field visit, the survey was conducted by thoroughly walking within each ward of the municipality together with the local person. An inventory of all the natural springs in the study area was done using global positioning system (GPS) during the field survey. The discharge measurement of the springs was done using the methodology described elsewhere (Herschy, 1993). During the field visit, different attributes related to springs such as types of springs, condition of spring, discharge rate, distance from the settlements, the surrounding land use, purpose of water use, and the status of the springs were studied. Additionally, the pattern of flow in the spring water for the past 10 years was cross-examined with the local people using an open-ended survey questionnaire. Table 1 shows the methods of discharge measurements at different types of water resources in the research area.
Methods for discharge measurements.
Water resource types . | Method . | Parameters required . | Instrument required . |
---|---|---|---|
Running/flowing springs and streams | Floatation method | Length of stream section (Point A to Point B); cross-section area, the width of the channel, depth of the channel; time taken to float from A to B | Measuring tape, tennis ball |
Tapped springs, channels | Bucket method | Volume to the bucket; time taken to fill the bucket | Bucket of known volume |
Stagnant springs (kuwa, ponds, wells) | Volumetric method and perception-based | Dimension of the spring (length, breadth, depth); watermark level marking | Measuring tape |
Water resource types . | Method . | Parameters required . | Instrument required . |
---|---|---|---|
Running/flowing springs and streams | Floatation method | Length of stream section (Point A to Point B); cross-section area, the width of the channel, depth of the channel; time taken to float from A to B | Measuring tape, tennis ball |
Tapped springs, channels | Bucket method | Volume to the bucket; time taken to fill the bucket | Bucket of known volume |
Stagnant springs (kuwa, ponds, wells) | Volumetric method and perception-based | Dimension of the spring (length, breadth, depth); watermark level marking | Measuring tape |