| GROUNDWATER: BOREHOLES & WELLS |
| Data ID |
| File name: | boreholes&wells |
| File path: | d:\north_central\Water\groundwater |
| File type: | Access table |
| Category: | Water |
| Description: | Information on over 10,000 boreholes and wells in and the immediate surrounds of the north-central region |
| Status: | Incomplete |
| Geographical area: | north-central Namibia |
| Keywords: | groundwater |
| | water |
| | boreholes |
| | wells |
| | water quality |
| Date of last update: | 2000/06/01 |
| ID notes: | See also: Water: Borehole water points and Water: Boreholes and wells with pumps |
| | |
| | Data compiled by EPP from a number of sources on boreholes and wells in the north-central region and the |
| | immediate surrounding area -- with and without information on pumps. Sources include: DWA, WSSPOR:DRWS, |
| | NNEP, NOLIDEP, Parkman Namibia, EEI, Interconsult. Data collected by these sources over the years may be |
| | geographical (where the borehole or well is), physical (yield and depth of water), chemical (quality of the water), |
| | civil (specifications of the fittings) or socio-economic (number of animals and people they supply). The quality of |
| | the records are variable. |
| | |
| | INFORMATION ON FIELDS |
| | |
| | ID |
| | This is the ID number generated by MS Access based on latitude, longitude and borehole number. |
| | |
| | TOPO |
| | The number of the 1:50,000 topo sheet on which the well or borehole is found |
| | |
| | WELL |
| | This is the well number assigned by DWA for each hole drilled. The combination of the well and topo numbers is |
| | unique (according to DWA). |
| | |
| | #WELLS |
| | This is the number of wells (usually hand-dug) in a cluster for which only one co-ordinate position was given. |
| | |
| | TOPOWELL |
| | A combination of the topo and well numbers (and is therefore unique). Some of these may be followed by a letter |
| | of the alphabet. This indicates that the first hole may have collapsed, been dry, etc. |
| | |
| | BHNO |
| | This is the borehole number that is assigned to each borehole when drilled. Although originally intended to be |
| | unique, they are not necessarily. |
| | |
| | LAT |
| | Latitudinal position in decimal degrees south of the equator (and therefore negative). |
| | |
| | LONG |
| | Longitudinal position in decimal degrees east of Greenwich. |
| | |
| | LREF |
| | A mix of codes given by drillers and consultants. |
| | |
| | TYPE |
| | Where possible, the water source type has been identified as: |
| | B = borehole |
| | F = fountain / fontein |
| | N = ndunga = deep unlined well |
| | O = omafima = shallow open well |
| | P = borrow pit |
| | S = spring |
| | SH = sinkhole |
| | W = well |
| | WA = artesian well |
| | WB = brick well (lined, usually deep covered) |
| | WHD = hand-dug wells |
| | WL = lined well |
| | WR = ring well (lined, usually deep and covered) |
| | WS = shallow well |
| | |
| | 07 December 2000 | Page 1 of 9 |