*ENVIRONMENTAL IMPACT
*Sites Visited
Site name |
McMurdo Ice Shelf HWD-1 |
Site location (coordinates/description) |
77 53.308′S 167 05.067′E |
Dates occupied |
3 - 23 Jan. 2003 |
Total days (or hours) at site |
20 Days |
Maximum number of people at site |
15 |
Total person-days (or person-hours) at site |
(see SB Ops report for person nights) |
Main activity undertaken |
Hot Water drilling, sub ice oceanography and sea floor sampling |
*Sites Visited
Site name |
McMurdo Ice Shelf HWD-1 |
Site location (coordinates/description) |
77 5.111′S 167 20.209′E |
Dates occupied |
23 Jan. - 5 Feb. 2003 |
Total days (or hours) at site |
13 days |
Maximum number of people at site |
15 |
Total person-days (or person-hours) at site |
(see SB Ops report for person nights)page 11 |
Main activity undertaken |
Hot Water drilling, sub ice oceanography and sea floor sampling |
*Sites Visited
Site name |
Sea ice BB site |
Site location (coordinates/description) |
77 5.111′S 167 20.209′E (approx 4.5 km south of Scott Base) |
Dates occupied |
Instrument: 10 Jan.-3 Feb. 2003 |
Total days (or hours) at site |
Instrument deployment: 23 days |
Maximum number of people at site |
6 |
Total person-days (or person-hours) at site |
Approx. 300 hours |
Main activity undertaken |
Hot Water drilling, sub ice oceanography and sea floor sampling |
*Sites Visited
Site name |
Gonville and Caius Range |
Site location (coordinates/description) |
|
Dates occupied |
|
Total days (or hours) at site |
|
Maximum number of people at site |
|
Total person-days (or person-hours) at site |
|
Main activity undertaken |
Geological sampling |
*Sites Visited
Site name |
New Harbour (Rig Point) |
Site location (coordinates/description) |
77 32.686′S 163 42.241′E |
Dates occupied |
|
Total days (or hours) at site |
1 hour |
Maximum number of people at site |
4 |
Total person-days (or person-hours) at site |
|
Main activity undertaken |
Locate for possible ANDRILL land storage site. |
*Geological Material
Location |
77 53.308′S 167 05.067′E |
Specimen type |
Sea floor sediments |
Quantity (kg) |
30 kg max. |
*Geological Material
Location |
77 5.111′S 167 20.209′E |
Specimen type |
Sea floor sediments |
Quantity (kg) |
30 kg max. |
*Geological Material
Location |
Gonville and Caius Range |
Specimen type |
Beacon rock samples |
Quantity (kg) |
? |
page 12
Chemicals
Chemical form |
Propylene Glycol (food grade) |
Quantity used |
Approx 300 litres, mixed with fresh water. |
Location of use |
Two Hot Water drill sites |
Storage/release details of unused chemicals |
Used antifreeze mix was returned to Scott Base for ultimate return and disposal in NZ. Minor quantity of mix was lost down hole. |
Chemicals
Chemical form |
Glutaraldehyde. |
Quantity used |
50 mg |
Location of use |
Camp Lab |
Storage/release details of unused chemicals |
All contaminated sea water filtration liquids (20 litres) were returned to Scott Base and returned to NZ |
Chemicals
Chemical form |
Mercuric Chloride solution. (HgCl) |
Quantity used |
10 ml |
Location of use |
Camp Lab |
Storage/release details of unused chemicals |
No release of chemical. Unused solution returned to Scott base and NZ for disposal. |
Equipment installed/left in field
Type of equipment |
Drilling equipment lost down hole or buried in 2 m deep snow pit. |
Location of installation left in field |
77 53.308′S 167 05.067′E in moving McMurdo ice Shelf. |
Size of items left in field |
Plywood sheet 1.2 m × 1.2 m, Plastic deflector 0.45 m diameter |
Number of items left in field |
2 |
Date of intended retrieval |
Not retrievable |
*Other environmental impacts
Minor loss of food grade glycol fresh water mixture
*Differences from original Preliminary Environmental Evaluation (PEE)
Approval for use of food grade glycol and burying of human wastes as part of revised PEE process.