Executive Summary - Environmental Management Authority

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PETROLEUM COMPANY OF TRINIDAD AND TOBAGOLIMITED (PETROTRIN)EIA FOR NEW PLANTS AND ACID ROAD TANK WAGONLOADING FACILITY AT POINTE-A-PIERREManagement Plan to Mitigate Negative ImpactsA summary of the recommended mitigation measures is presented in the following table:SUMMARY OF MITIGATION MEASURESPOTENTIAL ADVERSEENVIRONMENTAL IMPACTOn-Site ErosionWater Quality(Disposal ofHydrotest water)Water Quality (Fuel spills anddisposal of spent lubricants)Water Quality (Sedimentmigration)CONSTRUCTION PHASEMITIGATION MEASURE• Provide temporary drains during pre-construction tocontrol runoff; and• Conduct site preparation work only in areas that arerequired for the project.• If water quality is acceptable, recycle hydrotest waterback into the hydrant water system; and• Consider "staging" of pressure testing, so that water canbe used to test multiple pieces of equipment, tanks orsections of piping before being discharged.• Fuel and service vehicles offsite;• Routinely service vehicles and construction machinery toensure no leakage from equipment;• Use of appropriate pumps and nozzles for refuelling;• Place disconnected hoses in containers to prevent spillsfrom residual fuel;• Transport collected spent lubricants off-site to a facilitycapable of treating and/or disposing of waste of this kind;and• Remove all soil which may become contaminated duringthe course of construction to a site earmarked forstockpiling this contaminated material. This will then betransported to a bioremediation cell for treatment (on-siteremediation may be considered if the volumes are small).• Keep material stored on site to a minimum; and• Install siltation traps (using either hard or soft solutions)within drains to trap silt before it enters any watercourseoutside of the site.EcoengineeringxvEnvironmentally appropriatedevelopment for the Caribbean
PETROLEUM COMPANY OF TRINIDAD AND TOBAGOLIMITED (PETROTRIN)EIA FOR NEW PLANTS AND ACID ROAD TANK WAGONLOADING FACILITY AT POINTE-A-PIERREPOTENTIAL ADVERSEENVIRONMENTAL IMPACTMITIGATION MEASURENoise • Schedule night time (after 7 pm) heavy vehicularmovements to a minimum to the extent practical;• If noise intensive activities (such as pile driving) arerequired at night, apply for and obtain a noise variationfrom the EMA ;• Schedule on-site construction activities within normalworking hours to the extent practical;• Require contractors to conduct regular inspections andmaintenance activities on construction vehicles andequipment to ensure noise emission control systems areproperly functioning.Air Quality (exhaust and dustfrom vehicles)Air Quality (dust from clearedareas)Air Quality (dust fromstockpiling of aggregates)Soil Contamination• Cover the trays of all vehicles transporting dirt,construction aggregate, etc. to, from and within the site;• Implement dust control measures at the source ofemissions. The standard method is to wet earthworks andhaul roads; and• Enforce traffic speed regulations within the constructionzone as speeding along roads can contribute to dustemissions. At present, the speed limit within the complexis 40 km/hr.• Implement dust control measures at the source ofemissions, the standard method being to wet exposedsurfaces on which construction equipment will run;• Pave the area as soon as practical; and• Phase the construction of project components such thatareas are cleared and paved at different times to reducethe potential for dust from cleared areas.• Site dirt and aggregate stockpiles away fromneighbouring buildings (and downwind if practical);• Keep stockpiles to a minimum and use as soon aspractical;• Use of construction material at other sites so as tominimise storage at any one area; and• Cover smaller stockpiles, or store fine aggregates in binsor silos.• Measures used to mitigate against fuel spills and disposalof spent lubricants are also applicable here.EcoengineeringxviEnvironmentally appropriatedevelopment for the Caribbean
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Executive Summary - Environmental Management Authority

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