Virginia Administrative Code

Database updated through January 6, 2011

Article 19 

Emission Standards for Lightweight Aggregate Process Operations (Rule 4-19) 

9VAC5-40-2540. Applicability and designation of affected facility. 

A. The affected facility to which the provisions of this article apply is each lightweight aggregate 

process operation. 

B. The provisions of this article apply throughout the Commonwealth of Virginia. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1901, eff. January 1, 1985. 

9VAC5-40-2550. Definitions. 

A. For the purpose of these regulations and subsequent amendments or any orders issued by the 

board, the words or terms shall have the meanings given them in subsection C of this section. 

B. As used in this article, all terms not defined here shall have the meanings given them in 9VAC5 

Chapter 10 (9VAC5-10-10 et seq.), unless otherwise required by context. 

C. Terms defined. 

"Process operation" means any method, form, action, operation or treatment of manufacturing or 

processing, including any storage or handling of materials or products before, during or after 

manufacturing or processing. 

"Process unit" means any step in a manufacturing or process operation which results in the emission 

of pollutants to the atmosphere. 

"Process weight" means total weight of all materials introduced into any process unit which may cause 
any emission of pollutants. Process weight includes solid fuels charged, but does not include liquid and 

gaseous fuels charged or combustion air for all fuels. 

"Process weight rate" means a rate established as follows: 

a. For continuous or long-run steady-state process operations, the total process weight for the 

entire period of continuous operation or for a typical portion of it, divided by the number of hours of 

such period or portion of it. 

b. For cyclical or batch process operations, the total weight for a period that covers a complete 

operation or an integral number of cycles, divided by the hours of actual process operation during 

such a period. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1902, eff. January 1, 1985. 

9VAC5-40-2560. Standard for particulate matter. 

A. No owner or other person shall cause, or permit to be discharged into the atmosphere from any 

lightweight aggregate process operation any particulate emissions in excess of the limits in Table 4-19. 

TABLE 4-19

Process Weight Rate

Tons/Hr

Maximum Allowable Emission 

Rate

Lb/Hr

.05 or less .176

.10 .351

.20 .702

.30 1.053

.40 1.404

.50 1.76

.75 2.64
1.0 3.51

1.25 5.27

1.75 6.15

2.0 7.02

4.0 14.0

6.0 21.1

8.0 28.1

10.0 35.1

15.0 52.7

20.0 70.2

25.0 87.8

30.0 105.0

35.0 123.0

40.0 140.0

45.0 158.0

50.0 176.0

B. Except as provided in subsection C of this section, interpretation of the emission standard in 

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

C. For a process weight rate between any two consecutive rates in Table 4-19, or for rates over 50 

tons per hour, the maximum allowable emission rate may be calculated by the following equation: 

E = 3.51 P 

where: 

E = emission rate in lb/hr. 

P = process weight rate in tons/hr. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 
Derived from VR120-04-1903, eff. January 1, 1985. 

9VAC5-40-2570. Standard for sulfur oxides. 

No owner or other person shall cause, or permit fuel with a sulfur content in excess of three pounds 

per million Btu to be used in the processing of lightweight aggregate. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1904, eff. January 1, 1985. 

9VAC5-40-2580. Standard for visible emissions. 

The provisions of Article 1 (9VAC5-40-60 et seq.) of this chapter (Emission Standards for Visible 

Emissions and Fugitive Dust/Emissions, Rule 4-1) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1905, eff. January 1, 1985. 

9VAC5-40-2590. Standard for fugitive dust/emissions. 

The provisions of Article 1 (9VAC5-40-60 et seq.) of this chapter (Emission Standards for Visible 

Emissions and Fugitive Dust/Emissions, Rule 4-1) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1906, eff. January 1, 1985. 

9VAC5-40-2600. Standard for odor. 

The provisions of Article 2 (9VAC5-40-130 et seq.) of this chapter (Emission Standards for Odor, Rule 
4-2) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1907, eff. January 1, 1985. 

9VAC5-40-2610. Standard for toxic pollutants. 

The provisions of Article 3 (9VAC5-40-160 et seq.) of this chapter (Emission Standards for Toxic 

Pollutants, Rule 4-3) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1908, eff. January 1, 1985. 

9VAC5-40-2620. Compliance. 

The provisions of 9VAC5-40-20 (Compliance) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1909, eff. January 1, 1985. 

9VAC5-40-2630. Test methods and procedures. 

The provisions of 9VAC5-40-30 (Emission Testing) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1910, eff. January 1, 1985. 
9VAC5-40-2640. Monitoring. 

The provisions of 9VAC5-40-40 (Monitoring) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1911, eff. January 1, 1985. 

9VAC5-40-2650. Notification, records and reporting. 

The provisions of 9VAC5-40-50 (Notification, Records and Reporting) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1912, eff. January 1, 1985. 

9VAC5-40-2660. Registration. 

The provisions of 9VAC5-20-160 (Registration) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1913, eff. January 1, 1985. 

9VAC5-40-2670. Facility and control equipment maintenance or malfunction. 

The provisions of 9VAC5-20-180 (Facility and Control Equipment Maintenance or Malfunction) apply. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 
Derived from VR120-04-1914, eff. January 1, 1985. 

9VAC5-40-2680. Permits. 

A permit may be required prior to beginning any of the activities specified below and the provisions of 

9VAC5 Chapter 50 (9VAC5-50-10 et seq.) and 9VAC5 Chapter 80 (9VAC5-80-10 et seq.) may apply. 

Owners contemplating such action should contact the appropriate regional office for guidance. 

1. Construction of a facility. 

2. Reconstruction (replacement of more than half) of a facility. 

3. Modification (any physical change to equipment) of a facility. 

4. Relocation of a facility. 

5. Reactivation (restart-up) of a facility. 

Statutory Authority 

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia. 

Historical Notes 

Derived from VR120-04-1915, eff. January 1, 1985.