| Well number | K38/1220 | File number | CO6C/07342 |
|---|---|---|---|
| Last known owner | Clearview Rangitata Limited | Well status | Active (exist, present) |
| Street/road | Emersons Road | NZTM grid reference | BZ20:84790-15355 |
| Locality | Lowcliffe | NZTM X and Y | 1484790 - 5115355 |
| Location description | Location accuracy | 2 - 15m | |
| CWMS zone | Ashburton | Use | Irrigation, |
| Groundwater allocation zone | Mayfield-Hinds | Water level monitoring | -- |
| Depth | 10.00m | Water level count | 1 |
| Diameter | 500mm | Initial water level | 1.12m below MP |
| Measuring point description | ToC | Highest water level | 1.72m below MP |
| Measuring point elevation | 34.58m above MSL (Lyttelton 1937) | Lowest water level | 1.72m below MP |
| Elevation accuracy | < 0.5 m | First reading | 04 Oct 2022 |
| Ground level | 0.15m below MP | Last reading | 04 Oct 2022 |
| Strata layers | 2 | Calc min 80% | 2.80m below MP (Estimated) |
| Aquifer name | Aquifer tests | 2 | |
| Aquifer type | Yield drawdown tests | 5 | |
| Drill date | 01 Apr 1932 | Max tested yield | 99 l/s |
| Driller | Geoff Moore Contracting | Drawdown at max tested yield | 4 m |
| Drilling method | Machine Dug | Specific capacity | 30.77 l/s/m |
| Casing material | STEEL | Last updated | 05 Jul 2023 |
| Pump type | Last field check | 04 Oct 2022 | |
| Water use data | Yes |
Screens
| Screen no. | Screen type | Top (m) | Bottom (m) | Slot size (mm) | Slot length (mm) | Diameter (mm) | Leader length (mm) |
|---|---|---|---|---|---|---|---|
| 1 | Slotted Casing | 5 | 10 |
Step tests
| Step test date | Step | Yield | Yield GPM | DrawDown | Step duration |
|---|---|---|---|---|---|
| 01 Apr 1932 | 1 | 99 | 1306.62024 | 3.88 | 12 |
| 04 Oct 2022 | 1 | 0.4 | 5.27927351 | 0.013 | 1.4666667 |
| 04 Oct 2022 | 2 | 1.2 | 15.837821 | 0.032 | 1 |
| 04 Oct 2022 | 3 | 2.1 | 27.7161846 | 0.053 | 0.966666639 |
| 04 Oct 2022 | 4 | 2.9 | 38.2747345 | 0.079 | 1 |
Comments
| Comment date | Comment |
|---|---|
| 04 Jul 2001 | Slot- 100x5mm Bore developed for 8 hours |
| 27 Aug 2001 | M.Bowden GPS'd, updated in report for gw take application. Gallery K38/1221 attached. |
| 29 Nov 2005 | Gridref changed from: K38:94787-76966 Grant Mills (Bowdens) says this location was incorrect. |
| 21 Jul 2011 | Previous owner Chapman A J |
| 02 Nov 2022 | NZTM Easting/Northing updated from:1484745-5115294 shifted 75m, based on information provided in C22C/232038 |
| 10 Jan 2023 | Reference Level updated using LiDAR imagery in Dec 2022. The existing RL was 35.41 and the QAR RL was 4. The method of calculating the original RL was: Interpolated DTM. If GL from MP is updated in future please assess if RL also needs to be updated. |
| 10 May 2023 | Dec 2022 Reference Level update using LiDAR was in NZVD 2016, rather than Lyttelton 1937. Rectified in May 2023 by using the previously determined LiDAR elevation value and LINZ conversion tool to calculate Lyttelton 1937 elevation and update Reference Level field. Reference Level updated from 34.214m to 34.58m. |