Work suspended on Domtar Tank removal
SYDNEY- The Sydney Tar
Ponds Agency has ordered
work suspended on the Domtar
tank removal project after
naphthalene in excess of stringent
site guidelines was detected downwind of the tank.
Early Tuesday, strong
northerly winds prevented air
quality technicians from maintaining negative pressure
inside the building that encloses the tank. The agency's air
monitoring contractors collected samples upwind and
downwind of the site at 10 a.m.
The Environmental Services Laboratory in Sydney
analysed the samples and
reported results shortly before 4 p.m.
The upwind sample did not
detect measurable naphthalene.
The two downwind samples showed naphthalene at
levels of 11.8 micrograms per
metre cubed (ug/m3) and 8.8
ug/m3 at a distance of about
150 metres from the tank. The
site guideline is 5.0 ug/m3.