15A NCAC 13A .0116 COMMERCIAL HAZARDOUS WASTE FACILITY SCoring for category determination
(a) The Department shall evaluate all commercial hazardous waste facilities to determine a score for each facility in accordance with Paragraph (c) of this Rule.
(b) A commercial hazardous waste facility (other than an incinerator or a land disposal facility) with a volume of waste of 20,000 tons or less per year of hazardous waste and having a total score pursuant to Paragraph (c) of this Rule of equal to or less than 40 is designated as a "special purpose commercial hazardous waste facility." These facilities shall be classified as follows:
Total Score Category
1-11 1
Greater than 11-18 2
Greater than 18-25 3
Greater than 25-32 4
Greater than 32-40 5
(c) A score for each facility shall be determined by adding the total score for Paragraphs (d) through (k) of this Rule and subtracting the score for Paragraph (l) of this Rule.
(d) A score shall be assigned for size of the facility by adding the applicable score for storage and the applicable score for treatment using Table 1.
TABLE 1
Size of Facility Constructed Capacity Score
Storage: Less than 10,000 1
(gallons) 10,000‑100,000 2
Greater than 100,000 3
Treatment: Less than 10,000 1
(gallons 10,000‑100,000 2
per day) Greater than 100,000 3
(e) A score shall be assigned for type of treatment permitted by adding the score for each type of treatment being performed by the facility using Table 2.
TABLE 2
Type of Treatment Being Performed Score
Storage Only 1
Solvent Recovery 2
Metal Recovery 2
Energy Recovery 2
Fuel Blending 2
Aqueous Treatment 3
Stabilization 2
Incineration 5
Residuals Management 5
Other Treatment 2
(f) A score shall be assigned for the nature of hazardous waste being treated or stored by adding the score for each type of waste managed at the facility using Table 3. However, if the facility is permitted for storage only and no treatment is performed, the score for the nature of hazardous waste shall be reduced by one-half for each hazardous waste stream stored only.
TABLE 3
Nature of Hazardous Waste
(from Annual Report as listed in the Permit) Score
Corrosive 1
Ignitable 2
Reactive 3
Toxicity Characteristic 2
Listed Toxic 2
Acute 3
(g) A score shall be assigned for volume of hazardous waste by using the applicable score in Table 4.
TABLE 4
Volume of Waste (Tons from Annual Report) Score
Less than 2,000 1
2,000‑10,000 2
10,000‑20,000 3
(h) A score shall be assigned for uniformity, similarity, and lack of diversity of waste streams by using the applicable score in Table 5.
TABLE 5
Uniformity, Similarity, Lack of Diversity of
Waste Streams (Number of EPA Waste Codes)
As Listed in the Permit Score
Less than 5 1
5‑75 2
Greater than 75 3
(i) A score shall be assigned for predictability and treatability of site specific waste streams by using the applicable score in Table 6.
TABLE 6
Predictability and Treatability of Waste Streams Score
Simple Waste Streams and Treatment 1
Complex Waste Streams and Treatment 2
(Incompatibles, highly toxic, or multicoded waste streams).
(j) A score shall be assigned for compliance history for the past two years by using the highest applicable score in Table 7.
TABLE 7
Compliance History for Past Two Years Score
Class II Violations 1
Class I Violations 2
Penalties 3
Injunctions 5
(k) A score shall be assigned for annual changes, which increase or decrease "sensitive land use" within a ¼ mile radius of the commercial hazardous waste facility's property boundary by using the applicable score in Table 8. Each score shall be added together.
TABLE 8
Changes in "sensitive land use" Score
Increases
Greater than 5 percent – less than 10 percent increase in the number of residential 1
housing units as compared to the baseline.
Greater than or equal to 10 percent increase in the number of residential housing 2
units as compared to the baseline, or 30 percent increase in
the number of total sensitive land uses over
a period of the previous four years.
Greater than 50 percent increase in the number of non-residential sensitive 1
land uses as compared to the baseline.
Decreases
Greater than 5 percent – less than 10 percent decrease in the number of residential -1
housing units as compared to the baseline.
Greater than or equal to 10 percent decrease in the number of residential housing -2
units as compared to the baseline, or 30 percent decrease in
the number of total sensitive land uses over
a period of the previous four years.
Greater than 50 percent decrease in the number of non-residential sensitive -1
land uses as compared to the baseline.
"Sensitive land use," as defined in G.S. 130A-295.01(f), includes residential housing, places of assembly, places of worship, schools, day care providers, and hospitals. Sensitive land use does not include retail businesses.
"Baseline" means:
(1) for existing "Special Purpose Commercial Hazardous Waste Facilities" as the January 2008 data collected from the local government that has planning jurisdiction over the site on which the facility is located; and
(2) for new "Special Purpose Commercial Hazardous Waste Facilities" as the data from the local government that has planning jurisdiction over the site on which the facility is located collected in the year in which the facility permit is first issued.
(l) A score shall be assigned for on-site reclamation by using the applicable score in Table 9.
TABLE 9
Reclamation (Credit Given) Score
Pretreatment for Off‑site Reclamation 1
On‑site Reclamation 2
(m) The information referred to in Paragraphs (c) through (l) of this Rule shall be determined based on the facility's permit, the previous year's annual report, and compliance history. If no annual report was submitted, quarterly projections of waste volume shall be submitted to the Department by the facility. Each facility may be re‑evaluated at any time new information is received by the Department concerning the factors in Paragraphs (c) through (l) of this Rule.
(n) The frequency of inspections at special purpose commercial hazardous waste facilities shall be determined by the facility's classification as follows:
Category Minimum Inspections
1 2 per month
2 4 per month
3 6 per month
4 8 per month
5 10 per month
History Note: Authority G.S. 130A‑295.02(j);
Temporary Adoption Eff. February 15, 1991 for a period of 180 days to expire on August 14, 1991;
ARRC Objection Lodged February 25, 1991;
ARRC Objection Removed March 21, 1991;
Eff. August 1, 1991;
Amended Eff. April 1, 1994;
Recodified from 15A NCAC 13A .0016 Eff. December 20, 1996;
Amended Eff. January 1, 2011;
Readopted Eff. March 1, 2018.