Virginia Administrative Code › Title 9 - ENVIRONMENT › Agency 25 - STATE WATER CONTROL BOARD › Chapter 151 - VIRGINIA POLLUTANT DISCHARGE ELIMINATION SYSTEM (VPDES) GENERAL PERMIT REGULATION FOR DISCHARGES OF STORMWATER ASSOCIATED WITH INDUSTRIAL ACTIVITY › Part IV - Sector Specific Permit Requirements › Section 9VAC25-151-180 - Sector K - Hazardous waste treatment, storage, or disposal facilities

Current through Register Vol. 40, No. 24, July 15, 2024
A. Discharges
				  covered under this section. The requirements listed under this section apply to
				  stormwater discharges associated with industrial activity from facilities that
				  treat, store, or dispose of hazardous wastes, including those that are
				  operating under interim status or a permit under Subtitle C of the Resource
				  Conservation and Recovery Act (RCRA) (Industrial Activity Code "HZ"). Disposal
				  facilities that have been properly closed and capped, or clean closed, and have
				  no significant materials exposed to stormwater, do not require this
				  permit.
B. Special conditions.
				  Prohibition of nonstormwater discharges. In addition to the general prohibition
				  of nonstormwater discharges in Part I B 1, the following discharges are not
				  covered by this permit: leachate, gas collection condensate, drained free
				  liquids, contaminated groundwater, laboratory-derived wastewater and contact
				  washwater from washing truck, equipment, and railcar exteriors and surface
				  areas that have come in direct contact with solid waste at the landfill
				  facility.
C. Definitions.
"Contaminated stormwater" means stormwater that comes in
					 direct contact with landfill wastes, the waste handling and treatment areas, or
					 landfill wastewater as defined in this section. Some specific areas of a
					 landfill that may produce contaminated stormwater include the open face of an
					 active landfill with exposed waste (no cover added); the areas around
					 wastewater treatment operations; trucks, equipment, or machinery that has been
					 in direct contact with the waste; and waste dumping areas.
"Drained free liquids" means aqueous wastes drained from
					 waste containers (e.g., drums, etc.) before landfilling.
"Landfill" means an area of land or an excavation in which
					 wastes are placed for permanent disposal, that is not a land application or
					 land treatment unit, surface impoundment, underground injection well, waste
					 pile, salt dome formation, a salt bed formation, an underground mine, or a cave
					 as these terms are defined in
					 40 CFR
					 257.2,
					 40 CFR
					 258.2 and
					 40 CFR
					 260.10.
"Landfill wastewater," as defined in 40 CFR Part 445
					 (Landfills Point Source Category), means all wastewater associated with, or
					 produced by, landfilling activities except for sanitary wastewater,
					 noncontaminated stormwater, contaminated groundwater, and wastewater from
					 recovery pumping wells. Landfill wastewater includes leachate, gas collection
					 condensate, drained free liquids, laboratory derived wastewater, contaminated
					 stormwater, and contact washwater from washing truck, equipment, and railcar
					 exteriors and surface areas that have come in direct contact with solid waste
					 at the landfill facility.
"Leachate" means liquid that has passed through or emerged
					 from solid waste and contains soluble, suspended, or miscible materials removed
					 from such waste.
"Noncontaminated stormwater" means stormwater that does not
					 come into direct contact with landfill wastes, the waste handling and treatment
					 areas, or landfill wastewater as defined. Noncontaminated stormwater includes
					 stormwater that flows off the cap, cover, intermediate cover, daily cover, or
					 final cover of the landfill.
D. Numeric effluent limitations. As set forth
				  at 40 CFR Part 445 Subpart A, the numeric limitations in Table 180-1 apply to
				  contaminated stormwater discharges from hazardous waste landfills subject to
				  the provisions of RCRA Subtitle C at 40 CFR Parts 264 (Subpart N) and 265
				  (Subpart N) except for any of the following facilities:
1. Landfills operated in conjunction with
				  other industrial or commercial operations when the landfill only receives
				  wastes generated by the industrial or commercial operation directly associated
				  with the landfill;
2. Landfills
				  operated in conjunction with other industrial or commercial operations when the
				  landfill receives wastes generated by the industrial or commercial operation
				  directly associated with the landfill and also receives other wastes provided
				  the other wastes received for disposal are generated by a facility that is
				  subject to the same provisions in 40 CFR Subchapter N as the industrial or
				  commercial operation or the other wastes received are of similar nature to the
				  wastes generated by the industrial or commercial operation;
3. Landfills operated in conjunction with
				  centralized waste treatment (CWT) facilities subject to 40 CFR Part 437 so long
				  as the CWT facility commingles the landfill wastewater with other nonlandfill
				  wastewater for discharge. A landfill directly associated with a CWT facility is
				  subject to this part if the CWT facility discharges landfill wastewater
				  separately from other CWT wastewater or commingles the wastewater from its
				  landfill only with wastewater from other landfills; or
4. Landfills operated in conjunction with
				  other industrial or commercial operations when the landfill receives wastes
				  from public service activities so long as the company owning the landfill does
				  not receive a fee or other remuneration for the disposal service.
Table 180-1
Sector K - Numeric Effluent
								Limitations
Parameter
Effluent Limitations
Maximum Daily
Maximum Monthly Average
Hazardous Waste Treatment, Storage, or Disposal
								Facilities (Industrial Activity Code "HZ") Subject to the Provisions of 40 CFR
								Part 445 Subpart A.
Biochemical Oxygen Demand
								(BOD5)
220 mg/L
56 mg/L
Total Suspended Solids (TSS)
88 mg/L
27 mg/L
Ammonia
10 mg/L
4.9 mg/L
Alpha Terpineol
0.042 mg/L
0.019 mg/L
Aniline
0.024 mg/L
0.015 mg/L
Benzoic Acid
0.119 mg/L*
0.073 mg/L
Naphthalene
0.059 mg/L
0.022 mg/L
p-Cresol
0.024 mg/L
0.015 mg/L
Phenol
0.048 mg/L
0.029 mg/L
Pyridine
0.072 mg/L
0.025 mg/L
Arsenic (Total)
1.1 mg/L
0.54 mg/L
Chromium (Total)
1.1 mg/L
0.46 mg/L
Zinc (Total)
0.535 mg/L*
0.296 mg/L*
pH
Within the range of 6.0 - 9.0 s.u.
*These effluent limitations are three significant
								digits for reporting purposes.