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 9VAC25-151-220 - Sector O - Steam electric generating 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 steam electric
				  power generating facilities using coal, natural gas, oil, nuclear energy, etc.
				  to produce a steam source, including coal handling areas (Industrial Activity
				  Code "SE").
Stormwater discharges from coal pile runoff subject to
					 numeric effluent limitations are eligible for coverage under this permit, but
					 are subject to the limitations established by Part I A 1 c (2).
Stormwater discharges from ancillary facilities (e.g.,
					 fleet centers, gas turbine stations, and substations) that are not contiguous
					 to a steam electric power generating facility are not covered by this permit.
					 Heat capture and heat recovery combined cycle generation facilities are also
					 not covered by this permit; however, dual fuel co-generation facilities that
					 generate electric power are included.
B. Stormwater controls. Good housekeeping
				  measures.
1. Fugitive dust emissions. The
				  permittee shall describe and implement measures that prevent or minimize
				  fugitive dust emissions from coal and ash handling areas. The permittee shall
				  minimize off-site tracking of coal dust and ash. Control measures to consider
				  include installing specially designed tires, or washing vehicles in a
				  designated area before they leave the site, and controlling the
				  washwater.
2. Delivery vehicles.
				  The SWPPP shall describe measures that prevent or minimize contamination of
				  stormwater runoff from delivery vehicles arriving on the plant site. At a
				  minimum the permittee shall consider the following:
a. Develop procedures for the inspection of
				  delivery vehicles arriving on the plant site, and ensure overall integrity of
				  the body or container; and
b.
				  Develop procedures to deal with leakage and spillage from vehicles or
				  containers.
3. Fuel oil
				  unloading areas. The SWPPP shall describe measures that prevent or minimize
				  contamination of precipitation or surface runoff from fuel oil unloading areas.
				  At a minimum the permittee shall consider using the following measures, or an
				  equivalent:
a. Use of containment curbs in
				  unloading areas;
b. During
				  deliveries, having station staff familiar with spill prevention and response
				  procedures present to ensure that any leaks and spills are immediately
				  contained and cleaned up; and
c.
				  Use of spill and overflow protection. Drip pans, drip diapers, or other
				  containment devices may be placed beneath fuel oil connectors to contain
				  potential spillage during deliveries or from leaks at the connectors.
4. Chemical loading and unloading
				  areas. The permittee shall describe and implement measures that prevent or
				  minimize the contamination of precipitation or surface runoff from chemical
				  loading and unloading areas. At a minimum the permittee shall consider using
				  the following measures or their equivalents
a.
				  Use of containment curbs at chemical loading and unloading areas to contain
				  spills;
b. During deliveries,
				  having station staff familiar with spill prevention and response procedures
				  present to ensure that any leaks or spills are immediately contained and
				  cleaned up; and
c. Covering
				  chemical loading and unloading areas, and storing chemicals indoors.
5. Miscellaneous loading and
				  unloading areas. The permittee shall describe and implement measures that
				  prevent or minimize the contamination of stormwater runoff from loading and
				  unloading areas. The permittee shall consider the following, at a minimum or
				  their equivalents:
a. Covering the loading
				  area;
b. Grading, berming, or
				  curbing around the loading area to divert run-on; or
c. Locating the loading and unloading
				  equipment and vehicles so that leaks are contained in existing containment and
				  flow diversion systems.
6. Liquid storage tanks. The permittee shall
				  describe and implement measures that prevent or minimize contamination of
				  stormwater runoff from aboveground liquid storage tanks. At a minimum the
				  permittee shall consider employing the following measures or their equivalents:
a. Use of protective guards around
				  tanks;
b. Use of containment
				  curbs;
c. Use of spill and overflow
				  protection; and
d. Use of dry
				  cleanup methods.
7. Large
				  bulk fuel storage tanks. The permittee shall describe and implement measures
				  that prevent or minimize contamination of stormwater runoff from large bulk
				  fuel storage tanks. At a minimum the permittee shall consider employing
				  containment berms (or its equivalent). The permittee shall also comply with
				  applicable state and federal laws, including Spill Prevention Control and
				  Countermeasures (SPCC).
8. Spill
				  reduction measures. The permittee shall describe and implement measures to
				  reduce the potential for an oil or chemical spill, or reference the appropriate
				  section of their SPCC plan. The structural integrity of all aboveground tanks,
				  pipelines, pumps, and other related equipment shall be visually inspected as
				  part of the routine facility inspection. All repairs deemed necessary based on
				  the findings of the inspections shall be completed immediately to reduce the
				  incidence of spills and leaks occurring from faulty equipment.
9. Oil bearing equipment in switchyards. The
				  permittee shall describe and implement measures to prevent or minimize
				  contamination of surface runoff from oil bearing equipment in switchyard areas.
				  The permittee shall consider the use of level grades and gravel surfaces to
				  retard flows and limit the spread of spills, and the collection of stormwater
				  runoff in perimeter ditches.
10.
				  Residue hauling vehicles. All residue hauling vehicles shall be inspected for
				  proper covering over the load, adequate gate sealing, and overall integrity of
				  the container body. Vehicles without load coverings or adequate gate sealing,
				  or with leaking containers or beds shall be repaired as soon as
				  practicable.
11. Ash loading areas.
				  The permittee shall describe and implement procedures to reduce or control the
				  tracking of ash and residue from ash loading areas. Where practicable, clear
				  the ash building floor and immediately adjacent roadways of spillage, debris,
				  and excess water before departure of each loaded vehicle.
12. Areas adjacent to disposal ponds or
				  landfills. The permittee shall describe and implement measures that prevent or
				  minimize contamination of stormwater runoff from areas adjacent to disposal
				  ponds or landfills. The permittee shall develop procedures to:
a. Reduce ash residue that may be tracked on
				  to access roads traveled by residue trucks or residue handling vehicles;
				  and
b. Reduce ash residue on exit
				  roads leading into and out of residue handling areas.
13. Landfills, scrapyards, surface
				  impoundments, open dumps, general refuse sites. The SWPPP shall address and
				  include appropriate control measures to minimize the potential for
				  contamination of runoff from landfills, scrapyards, surface impoundments, open
				  dumps, and general refuse sites.