No machine activity on worksite for this day. Dust suppression with water at various areas across the site.
08:00 hours placement of sprinklers across site
08:30 hours calibration of air sampling pumps
09:00 hours air samplers placed across site
09:30 hours wind strength and direction 0 to 3 m/s ESE
10:00 hours PM10s between 0.05 and 0.03 mg/m3 across the site, upwind and downwind values approximately the same.
11:30 hours sprinklers turned off as all areas now very moist.
13:00 hours PM10s between 0.05 and 0.025 mg/m3 across the site, upwind and downwind values approximately the same.
15:00 hours PM10s between 0.05 and 0.03 mg/m3 across the site, upwind and downwind values approximately the same.
