(PESIA) Weg naar Zee 2D Seismic - Staatsolie

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P-all consultants Staatsolie Maatschappij Suriname N.V. PESIA Weg naar Zee 2D Seismic 2012 Table 26: Impact of solid and liquid waste on water quality Impact of: solid and liquid waste on water quality Without Mitigation With Mitigation Magnitude/ Intensity /Size Geographical scale Low Small Short term Low Small Short term Duration Probability Severity Overall significance 76 Medium Low Minor negative Low Low Negligible The on-site maintenance of equipment will have to be done by Staatsolie rules and guidelines for maintenance. Although potentially maintenance may have an impact through the release of some oil and grease into the surrounding water, the impact, if any, is regarded to be minor negative, being incidental and much localized. Apart from the already existing clean-up procedures, no additional mitigation measures are required. If all existing rules are applied the impact will be negligible. Table 27 Impact of on-site maintenance on water quality Impact of: on-site maintenance Without Mitigation With Mitigation Magnitude/ Intensity /Size Geographical scale Low Small Short term Low Small Short term Duration Probability Severity Overall significance Medium Low Minor negative Low Low Negligible Fuel for vehicles and equipment will have to be transported to and within the project area. Transport will take place by swamp carrier with the fuel stored in a tank. This tank remains on the carrier, except when the carrier is needed elsewhere. Spills or leaks could occur during transport, storage or handling of fuel and have a moderate negative impact. This should however normally speak not happen if handled according to instructions. The water quality impacts may affect wildlife and lead to social unrest. Changes in the water quality due to project activities in the Eastern Wayambo Swamp could have an effect on: • aquatic life – increased turbidity may result in changes in species composition and quantity of aquatic life, causing some life to disappear from affected locations • plants and animals, which may die when polluted with fuel, oil or grease
P-all consultants Staatsolie Maatschappij Suriname N.V. PESIA Weg naar Zee 2D Seismic 2012 Impacts will predominantly be felt along the access trails and around the seismic trails. The potentially most severe impact to water quality in the Wetland Area would occur when pollution takes place in a “fishing hole”. This impact is considered to be moderate negative. Recommended preventive and mitigation measures include: Fuel spills and leaks • use leak proof containers and storage tanks • provide adequate containment in case of container or tank leakage • follow the Staatsolie procedures for maintenance and clean-up Applying the mitigation measures will bring the impact to minor negative. It is to be expected that small amounts of water pollution will very soon disappear by the self-cleaning capacity of the swamp ecosystems, and through dilution upon rainfall and consequent drainage. Dryland Area Operations phase: The waste of the explosion holes may affect the local soil quality. These compounds are not toxic as such, but may harm aquatic life especially due to increased turbidity. Similar as for the Wetland Area, the impact will be much localized and short-lived, and as such it is considered as to be minor negative and no prevention or mitigation measures are required. Nevertheless some measures are recommended below. As for soil pollution, a moderate negative impact will occur when pollution would affect a fresh water reservoir, a fishing or duck pond, or other managed type of aquatic environment. The latter is dealt with in the section land use. Table 28 Impact on water quality in wetland and dry land Impact on water quality in wetland and dry land Without Mitigation With Mitigation Magnitude/ Intensity /Size Geographical scale Medium Small Long term Low Small Short term Duration Probability Severity Overall significance 77 High Medium Moderate negative Medium Low Minor negative No impact is to be expected in downstream waters, given the limited pollution compared to the large water volumes involved.
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(PESIA) Weg naar Zee 2D Seismic - Staatsolie

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