}
- 2
3.
Aerial emissions of PFA dust will be controlled by
the following measures
(a) the delivery of PFA in slurry form mixed with
seawater;
(b) minimizing the area of PFA exposed to the wind;
(c) the provision of permanent fixed water spraying
equipment with a mobile back-up system;
(a) the continuous skimming of the lagoon; and
(e)
the covering of dry PFA by inert material and
subsequent hydroseeding.
Air quality in the vicinity will be continuously monitored by
three separate monitoring stations to ensure that World Health
Organization standards are not exceeded.
4.
Liquid emissions (or leachate) will be controlled by
lining the lagoons with an impermeable membrane and by pumping
the liquids from the lagoon back to the Castle Peak Power
Station. As a result, no liquid will enter Deep Bay. As a
check on the effectiveness of these measures, seven monitoring
stations are already operating and will continue in operation
throughout the life of the lagoons.