Erosion and Sediment Pollution Control Program Manual.pdf

Pollutant -----Any contaminant or other alteration of the physical, chemical, biological or radiological
integrity of surface water which causes or has the potential to cause pollution as defined in
section 1 of The Clean Streams Law (35 P.S. §§ 691.1—691.1001).
Pollutant Loading -----The arithmetic product of the pollutant concentration and the runoff rate.
Pollution -----Contamination of any surface waters such as will create or is likely to create a nuisance
or to render such waters harmful, detrimental or injurious to public health, safety or welfare, or to
domestic, municipal, commercial, industrial, agricultural, recreational, or other legitimate
beneficial uses, or to livestock, wild animals, birds, fish or other aquatic life, including but not
limited to such contamination by alteration of the physical, chemical or biological properties of
such waters, or change in temperature, taste, color or odor thereof, or the discharge of any
liquid, gaseous, radioactive, solid or other substances into such waters.
Polyacrylamides (PAMs) -----Synthetic polymers with extensive water-retention and water-saving
capabilities used to halt erosion and promote vegetative growth. The polymers are long-lasting,
gel-forming, water-absorbing materials that can absorb more than 400 times their weight in
distilled water.
Polypropylene -----A synthetic — polymeric — material used in the making of geogrids, some compost
socks, and other materials.
Ponding -----Standing water on soil in a closed depression.
Pool Area -----The location for storing water upstream of an embankment.
Pore Water -----See interstitial water.
Porosity -----The ratio of pore space to total volume of soil or rock. These pore spaces might or might
not be interconnected.
Post Construction Stormwater -----Stormwater associated with a project site after the earth
disturbance activity has been completed and the project site is permanently stabilized.
Post Construction Stormwater Management Plan (PCSM Plan) -----A site specific plan identifying
BMPs to manage stormwater runoff after construction activities have ended and the project site
permanently stabilized to protect and maintain existing and designated uses. The PCSMP must
contain a written narrative, including calculations or measurements, and justifications for each
BMP. The BMPs should be designed to maximize infiltration technologies, minimize point
source discharges to surface waters, preserve the integrity of stream channels, and protect the
physical, biological and chemical qualities of the receiving water.
Potable Water Supply -----1. Water that is drinkable; water that meets the standards in quality as
established in the U.S. EPA’s Drinking Water Standards. 2. A water supply that is used as
public drinking water.
Potential Sediment Pollution -----Site conditions, such as a failure to install or maintain BMPs
specified in the E&S Plan that if not corrected, could result in sediment pollution to surface
waters if a design storm occurs.
PPC Plan ----- Preparedness, Prevention and Contingency Plan - A written plan that identifies an
emergency response program, material and waste inventory, spill and leak prevention and
response, inspection program, housekeeping program, security and external factors, and that is
developed and implemented at the construction site to control potential discharges of pollutants
other than sediment into waters of this Commonwealth.
Pre-construction Meeting -----A meeting held prior to initial disturbance on a construction site
between the operator(s) and all interested agencies to facilitate communication between all
parties.
Preparedness, Prevention and Contingency Plan (PPC Plan) -----A written plan that identifies an
emergency response program, material and waste inventory, spill and leak prevention and
response, inspection program, housekeeping program, security and external factors, developed
and implemented at the construction site to control potential discharges of pollutants other than
sediment into waters of this Commonwealth. Potential pollutants at construction activities can
include, but are not limited to pesticides, fertilizers, lime, petrochemicals, construction-related
chemicals and solvents, wastewater, wash water, core drilling wastewater, cement, sanitary
wastes or hazardous wastes.
Previous Land Uses -----The actual land use(s) of an area of land for the past 50 years, or longer if
known. Note: This is not just the zoning of the land.
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