South Carolina Code of Regulations
Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL
Subchapter 61-9 - Water Pollution Control Permits
Subchapter 61-9.504 - STANDARDS FOR THE USE OR DISPOSAL OF INDUSTRIAL SLUDGE
Part A - GENERAL PROVISIONS
Section 61-9.504.A.9 - General definitions

(a) "Apply industrial sludge or industrial sludge applied to the land" means land application of industrial sludge. Disposal of industrial sludge in a permitted solid waste unit or in accordance with a wastewater facility closeout plan approved pursuant to Regulation Regulation 61-82 is not land application.

(b) "Base flood" is a flood that has a one percent chance of occurring in any given year (i.e., a flood with a magnitude equalled once in 100 years).

(c) "Cover crop" is a small grain crop, such as oats, wheat, or barley; grasses; or other crop grown for agronomic use.

(d) "CWA" see R.61-9.122.2(b)(b)Definitions.

(e) "Domestic septage" is either liquid or solid material removed from a septic tank, portable toilet, Type III marine sanitation device, or similar treatment works that receives only domestic sewage. Domestic septage does not include liquid or solid material removed from a septic tank, cesspool, or similar treatment works that receives industrial wastewater and does not include grease removed from a grease trap at a restaurant.

(f) "Domestic sewage" is waste and wastewater from humans, which is generated from industrial, commercial, or household operations that is discharged to or otherwise enters a treatment works.

(g) "Dry weight basis" means calculated on the basis of having been dried at 105 degrees Celsius until reaching a constant mass (i.e., essentially 100 percent solids content).

(h) "EPA" means the United States Environmental Protection Agency.

(i) "Feed crops" are crops produced primarily for consumption by animals.

(j) "Fiber crops" are crops such as flax and cotton.

(k) "Food crops" are crops consumed by humans. These include, but are not limited to, fruits, vegetables, and tobacco.

(l) "Ground water" is water below the land surface in the saturated zone.

(m) "Industrial wastewater" is wastewater generated in a commercial or industrial process (including waste and wastewater from humans when combined with commercial or industrial wastewater). By definition, waste or wastewater from humans not combined with commercial or industrial wastewater will be considered domestic sewage covered under R.61-9.503.

(n) "Industrial Septage" is either liquid or solid material removed from a septic tank that receives industrial wastewater. This does not include grease removed from grease traps at restaurants or other similar establishments.

(o) "Industrial Sludge" is solid, semi-solid, or liquid residue generated during the treatment of industrial wastewater in a treatment works. Industrial sludge includes, but is not limited to, industrial septage; scum or solids removed in primary, secondary, or advanced wastewater treatment processes; and a material derived from industrial sludge. Industrial sludge does not include ash generated during the firing of industrial sludge in an industrial sludge incinerator or grit and screenings generated during preliminary treatment of industrial wastewater in a treatment works. Industrial sludge by definition does not include sludge covered under 40 CFR Part 503 or R.61-9.503.

(p) "Municipality" see R.61-9.122.2(b)Definitions. The definition includes under R.61-9.503 a special district created under State law, such as a water district, sewer district, sanitary district, utility district, drainage district, or similar entity, or an integrated waste management facility as defined in section201(e)(e) of the CWA, as amended, that has as one of its principal responsibilities the treatment, transport, use, or disposal of sewage sludge.

(q) "Permitting authority" means the Department.

(r) "Person" see definition in R.61-9.122.2(b)Definitions.

(s) "Person who prepares industrial sludge" is the person who generates industrial sludge during the treatment of industrial wastewater in a treatment works and/or the person who derives a material from industrial sludge when the industrial sludge does not meet the ceiling concentrations in Table 1 of section504.13; the pollutant concentrations Table 3 of section504.13; the Class A pathogen requirements in section504.32(a)(a); one of the vector attraction reduction requirements in section504.33(b)(1)(b)(1) through section504.33(b)(8)(b)(8) or an equivalent vector attraction reduction requirement (as determined by the Department), or the sludge contains other pollutants that may cause a public health or environmental problem.

(t) "Place industrial sludge or industrial sludge placed" means disposal of industrial sludge on a land disposal site.

(u) "Pollutant" is an organic substance, an inorganic substance, a combination of organic and inorganic substances, or a pathogenic organism that, after discharge and upon exposure, ingestion, inhalation, or assimilation into an organism either directly from the environment or indirectly by ingestion through the food chain, could, on the basis of information available to the Department, cause death, disease, behavioral abnormalities, cancer, genetic mutations, physiological malfunctions (including malfunction in reproduction), or physical deformations in either organisms or offspring of the organisms.

(v) "Pollutant limit" is a numerical value that describes the amount of a pollutant allowed per unit amount of industrial sludge (e. g., milligrams per kilogram of total solids); the amount of a pollutant that can be applied to a unit area of land (e. g., kilograms per hectare); or the volume of a material that can be applied to a unit area of land (e.g., gallons per acre).

(w) "Runoff" is rainwater, leachate, or other liquid that drains overland on any part of a land surface and runs off of the land surface.

(x) "State" means the State of South Carolina.

(y) "Store or storage of industrial sludge" is the placement of industrial sludge on land on which the industrial sludge remains for two years or less. This does not include the placement of industrial sludge on land for treatment.

(z) "Treat or treatment of industrial sludge" is the preparation of industrial sludge for final use or disposal. This includes, but is not limited to, thickening, stabilization, and dewatering of industrial sludge. This does not include storage of industrial sludge.

(aa) "Treatment works" is either a commercially, or privately owned device or system used to treat (including recycle and reclaim) either industrial, commercial sewage or a combination of domestic sewage and industrial waste of a liquid nature.

(bb) "Wetlands" see R.61-9.122.2(b)Definitions.

(cc) "Commercial Wastewater" is any other wastewater (other than process wastewater) which is not included under industrial wastewater and does not include domestic sewage (e.g. centralized special waste collection and processing).

(dd) "Person who applies industrial sludge" may be the generator, preparer, or a land applier.