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.