9VAC5-40-1840: Standard for particulate matter

A. No owner or other person shall cause or permit any material to be produced, handled, stockpiled or transported without taking measures to reduce to a minimum any particulate matter from becoming airborne. Where it is practical to measure the emission, the emission shall not exceed the limits established by Table 4-14. All such airborne particulate matter emanating from the yards, sidings or roads of such operations shall be considered fugitive dust and shall be controlled as stipulated in 9VAC5-40-1860. All crushers shall be fitted with liquid sprays or other appropriate systems which effectively limit the escape of airborne dust. Vibrating and shaker screens handling dry materials shall be enclosed or fitted with a collector system which will prevent the release of more than 0.05 grains per standard cubic foot. All feeders, elevators, conveyors, transfer points, discharge points and loading points shall be equipped with collectors, sprays or other means when necessary to minimize the escape of dust.

TABLE 4-14

Process Weight

Maximum Allowable Emission Rate

Lb/Hr

Tons/Hr

Lb/Hr

100 or less

0.05 or less

0.551

200

0.10

0.877

400

0.20

1.40

600

0.30

1.83

800

0.40

2.22

1000

0.50

2.58

1500

0.75

3.38

2000

1.00

4.10

2500

1.25

4.76

3000

1.50

5.38

3500

1.75

5.96

4000

2.00

6.52

5000

2.50

7.58

6000

3.00

8.56

7000

3.50

9.49

8000

4.00

10.4

9000

4.50

11.2

10000

5.00

12.0

12000

6.00

13.6

16000

8.00

16.5

18000

9.00

17.9

20000

10.00

19.2

30000

15.00

25.2

40000

20.00

30.5

50000

25.00

35.4

60000

30.00

40.0

70000

35.00

41.3

80000

40.00

42.5

90000

50.00

44.6

120000

60.00

46.3

140000

70.00

47.8

160000

80.00

49.1

200000

100.00

51.3

1000000

500.00

69.0

2000000

1000.00

77.6

6000000

3000.00

92.7

B. Interpretation of emission standard in subsection A of this section shall be in accordance with 9VAC5-40-22.

C. The provisions of this section shall not apply to affected facilities identified in subsection A of this section and located in AQCR 7; however, the provisions of 9VAC5-40-270 shall apply to the facilities.