1. A. Biological;
2. B. Physical; and
3. C. Chemical.

Three general types of pretreatment systems are described herein. They are as follows:

Statutory Authority

§§ 32.1-12 and 32.1-164 of the Code of Virginia.

Historical Notes

Derived from VR355-34-02 § 4.14, eff. February 5, 1986; amended, Virginia Register Volume 4, Issue 14, eff. May 11, 1988.