Dust controls include site layout design, staff and supervisor training, mobile dust suppression units, water cannons, static dust sprays, water curtains, coagulant sprays, road-borne vehicle washing facilities and internal speed restrictions.
Unsurfaced temporary haul roads are regularly sprayed with water from water bowsers during dry weather. Permanent access roads are surfaced or constructed on suitable materials to help avoid the creation of dust and are similarly sprayed with water.
To avoid dust arising from loose surfaces, the outward facing slopes of any disturbed non-operational area is seeded to grass where possible at the earliest opportunity.
Standard practice of suppression of dust from blasting includes dust collection units on the drill rigs, bagging the arisings from the drilling, careful stemming of blast holes and careful blast design to minimise energy loss and wetting the area prior to blasting.
Dust emission from the loading of dumptrucks is controlled by efficient use of loading machines during loading and by not discharging overburden into dumptrucks from an excessive height.
Stripping and the replacement of soils is carried out in dry weather.
Dust is routinely monitored at locations agreed with the local authority to ensure that dust emission is kept to a minimum in compliance with statutory controls.
Expert noise consultants conduct surveys of equipment and make noise predictions based upon site design. Working methods are adjusted to minimise any potential impacts to noise sensitive locations and time restrictions are set by planning conditions.
All mechanical plant are fitted with efficient silencing equipment before such plant is deployed on the site. Wherever possible, plant is deployed to ensure the most effective minimisation of noise including the use of smaller, less noisy equipment in exposed or sensitive locations.
Baffle mounds are constructed along sensitive site perimeters and the configuration of the site overburden mound and excavation faces serve as noise attenuation features.
The construction and dismantling of overburden mounds are carried out so that the outer faces are removed last, thus ensuring maximum screening.
All site operations are closely and strictly supervised to ensure that the site specific control measures are effective.
Traffic impacts are greatly reduced by agreeing the level, route and times of haulage with the Mineral Planning Authority. Where possible coal is transported by rail to reduce traffic impact.
A company code of practice is enforced to ensure that drivers and vehicles give no cause for concern.
All lorries leaving the sites are washed, weighed and sheeted before entering public roads.