Territory Stories

Renison Goldfields Consolidated Limited, Pine Creek Project. Groundwater Investigation Stage 2, Establishment of Borefield and Management Studies. Report H114/3-AA.

Details:

Title

Renison Goldfields Consolidated Limited, Pine Creek Project. Groundwater Investigation Stage 2, Establishment of Borefield and Management Studies. Report H114/3-AA.

Creator

Coffey & Partners Pty Ltd

Collection

E-Publications; E-Books; PublicationNT; Report no. 87/1984

Date

1983-11-01

Notes

Date:1983-11

Language

English

Publisher name

Northern Territory Government

Place of publication

Darwin

Series

Report no. 87/1984

File type

application/pdf

Use

Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government

License

https://creativecommons.org/licenses/by/4.0/

Parent handle

https://hdl.handle.net/10070/228435

Citation address

https://hdl.handle.net/10070/674167

Page content

Technical Report WRD84087 Viewed at 14:07:14 on 29/07/2010 Page 27 of 167. r. , . ,-, ; ; .. "-].. U .' , .. , HLl4 1 '-MRS Nov 2b, 1983 13. 2.2.3 i1 j$" . TABLE 6 AN,mAL RUNOFF ESTIMATES eML) ZONE Tailings ,<let Tailings Dry Median 1971(1972 82.6 47.7 Decant Pond 19.6 DE'(";j il t Pond Sturage 30.5 Eastern Natural Catchmf~'1 t 139.9 Waste Rock Dump 76.8 Natural Catch,.oent Tdest of Waste Rockdump 49.6 Process i\eservoir Catchment 84.8 Process Reservoir StorCl'-'2: J08.3 Pit/Process Catchment 135.8 1 in 5 ye,~r 1932/1933 61. 0 :'8.4 19.6 30.5 83.8 45.7 29.7 49.5 227.7 79.4 1 in 10 year 1931/1932 51.0 18.9 15.6 25.5 66.9 J 0.5 23.7 33.0 190.5 52.9 Evaporation I Leakage and Er:.t.rapped Water Losses 1 in 50 year 1899(1900 41. 3 11.9 11.5 20.6 49.2 19.4 17.5 17.9 154.0 28.7 Loss of -water from the system occur through evaporation, water trapped in tailings and leakage losses from the various holding reservoirs. Evaporation losses have been est i mated based on the adopted eva?oration data (Table 2) and a pan co-efficient 0.8. The pan co-efficient of 0.8 is appropriate for open wate~ in the study area and has bee~ used by others {References Al and A2) . For evaporation from the wet tailings a pan factor of 0.8 has been used. For the wet tailings two conflicting influences Occur. The tailings are heated by the sun tending to increase