Environmental Statement - Maersk Oil

Balloch Field Development Environmental Statement
Section 6 Accidental Spills
Figure 6‐4 Water column and sediment summary outputs for a well blowout at subsea.
62°00'N
60°00'N
58°00'N
56°00'N
62°00'N
60°00'N
58°00'N
56°00'N
5°00'W
5°00'W
200 km
Blowout ‐ subsea release
Probability of oil exceeding 50 ppb (dissolved + droplets)
5°00'W
5°00'W
200 km
0°00'E
0°00'E
0°00'E
0°00'E
Concentration of oil in sediments
Maximum sediment conc'n 117 g/m 2
Equivalent conc'n over 5cm* 1170 mg/kg
Typical sediment conc'n** 20 g/m 2
Equivalent conc'n over 5cm* 200 mg/kg
** representative of larger affected areas * 5cm used as a typical sediment mixing depth
5°00'E
5°00'E
5°00'E
5°00'E
10°00'E
Statistical Map: Water-Column: Probability of contamination above threshold (50 ppb of tot.conc.)
10°00'E
10°00'E
62°00'N
60°00'N
58°00'N
56°00'N
120:00:00
10°00'E
62°00'N
60°00'N
58°00'N
56°00'N
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