A. 
For the purposes of this chapter, certain terms and words used herein shall be interpreted as follows:
(1) 
Words used in present tense include the future tense; the singular number includes the plural number, and the plural number includes the singular; words of masculine gender include feminine gender; and words of feminine gender include masculine gender.
(2) 
The word "includes" or "including" shall not limit the term to the specific example but is intended to extend its meaning to all other instances of like kind and character.
(3) 
The word "person" includes as individual, firm, association, organization, partnership, trust, company, corporation, or any other similar entity.
(4) 
The words "shall" and "must" are mandatory; the words "may" and "should" are permissive.
(5) 
The words "used or occupied" include the words "intended, designed, maintained, or arranged to be used or occupied."
B. 
As used in this chapter, the following terms shall have the meanings indicated:
AGRICULTURAL ACTIVITIES
Growing crops, rotating crops, tilling of soil and grazing animals.
ALTERATION
As applied to land, a change in topography as a result of the moving of soil and rock from one location or position to another; also the changing of surface conditions by causing the surface to be more or less impervious; land disturbance.
APPLICANT
A landowner or developer who has filed an application for approval to engage in any regulated activities as defined in § 238-4 of this chapter.
CISTERN
An underground reservoir or tank for storing rainwater.
CONSERVATION DISTRICT
The Franklin County Conservation District.
CULVERT
A structure with appurtenant works which carries a stream under or through an embankment or fill.
DAM
An artificial barrier, together with its appurtenant works, constructed for the purpose of impounding or storing water or another fluid or semifluid, or a refuse bank, fill or structure for highway, railroad or other purposes which does or may impound water or another fluid or semifluid.
DESIGN STORM
The magnitude and temporal distribution of precipitation from a storm event measured in probability of occurrence (e.g., a five-year storm) and duration (e.g., 24 hours), used in the design and evaluation of stormwater management systems.
DETENTION BASIN
An impoundment structure designed to manage stormwater runoff by temporarily storing the runoff and releasing it at a predetermined rate.
DEVELOPER
A person, partnership, association, corporation, or other entity, or any responsible person therein or agent thereof, that undertakes any regulated activity of this chapter.
DEVELOPMENT SITE
The specific tract of land for which a regulated activity is proposed.
DIRECTOR OF ENGINEERING
A person duly appointed by the Borough Council of the Borough of Waynesboro or any consultant designated by the Borough Council of the Borough of Waynesboro to review drainage plans.
DRAINAGE EASEMENT
A right granted by a landowner to a grantee, allowing the use of private land for stormwater management purposes.
EROSION
The movement of soil particles by the action of water, wind, ice, or other natural forces.
FLOODPLAIN
Any land area susceptible to inundation by water from any natural source or delineated by applicable Department of Housing and Urban Development, Federal Insurance Administration Flood Hazard Boundary Maps as being a special flood hazard area. Also included are areas that comprise Group 13 Soils, as listed in Appendix A of the Pennsylvania Department of Environmental Protection (PADEP) Technical Manual for Sewage Enforcement Officers (as amended or replaced from time to time by PADEP).
FOREST MANAGEMENT OPERATIONS
All activities connected with growing and harvesting of forest products, including site preparation, cultivation and logging of trees and the construction and maintenance of roads.
GROUNDWATER RECHARGE
Replenishment of existing natural underground water supplies.
IMPERVIOUS SURFACE
A surface that prevents the percolation of water into the ground.
INFILTRATION STRUCTURES
A structure designed to direct runoff into the ground (e.g., french drains, seepage pits, seepage trench).
LAND DEVELOPMENT
Any of the following activities:
(1) 
The improvement of one lot or two or more contiguous lots, tracts or parcels of land for any purpose involving:
(a) 
A group of two or more residential or nonresidential buildings, whether proposed initially or cumulatively, or a single nonresidential building on a lot or lots regardless of the number of occupants or tenure; or
(b) 
The division or allocation of land or space, whether initially or cumulatively, between or among two or more existing or prospective occupants by means of, or for the purpose of streets, common areas, leaseholds, condominiums, building groups or other features.
(2) 
A subdivision of land.
(3) 
Development in accordance with Section 503(1.1) of Act 170, Municipalities Planning Code,[1] and as stated as follows:
(a) 
Provisions for the exclusion of certain land development from the definition of land development only when such land development involves:
[1] 
The conversion of an existing single-family detached dwelling or single-family semidetached dwelling into not more than three residential units, unless such units are intended to be a condominium;
[2] 
The addition of an accessory building, including farm buildings, on a lot or lots subordinate to an existing principal building; or
[3] 
The addition or conversion of buildings or rides within the confines of an enterprise which would be considered an amusement park. For purposes of this subsection, an amusement park is defined as a tract or area used principally as a location for permanent amusement structures or rides. This exclusion shall not apply to newly acquired acreage by an amusement park until initial plans for the expanded area have been approved by proper authorities.
LAND DISTURBANCE
Any activity involving grading, tilling, digging, or filling of ground or stripping of vegetation or any other activity that causes an alteration to the natural condition of the land.
NRCS
United States Department of Agriculture, Natural Resources Conservation Service.
OPEN CHANNEL
A drainage element in which stormwater flows with an open surface. Open channels include, but shall not be limited to, natural and man-made drainageways, swales, ditches, canals, and pipes flowing partly full.
PEAK DISCHARGE
The maximum rate of stormwater runoff from a specified storm event.
PIPE
A culvert, closed conduit, or similar structure (including appurtenances) that conveys stormwater.
PMF (PROBABLE MAXIMUM FLOOD)
The flood that may be expected from the most severe combination of critical meteorologic and hydrologic conditions that are reasonably possible in an area. The PMF is derived from the probable maximum precipitation (PMP) as determined on the basis of data obtained from the National Oceanographic and Atmospheric Administration (NOAA).
REGULATED ACTIVITIES
Actions or proposed actions that have an impact on stormwater runoff and that are specified in § 238-4 of this chapter.
RELEASE RATE
The percentage of the predevelopment peak rate of runoff from a subarea to which the postdevelopment peak of runoff must be reduced to protect downstream areas.
RETENTION BASIN
An impoundment in which stormwater is stored and not released during the storm event. Stored water may be released from the basin at some time after the end of the storm.
RETURN PERIOD
The average interval, in years, within which a storm event of a given magnitude can be expected to recur. For example the twenty-five-year return period rainfall would be expected to recur on the average once every 25 years.
RUNOFF
Any part of precipitation that flows over the land surface.
SEDIMENTATION
The process by which mineral or organic matter is accumulated or deposited by the movement of water.
SEDIMENT BASIN
A barrier, dam, retention, or detention basin located and designed to retain rock, sand, gravel, silt, or other material transported by water.
SEEPAGE PIT/SEEPAGE TRENCH
An area of excavated earth filled with loose stone or similar coarse material, into which surface water is directed for infiltration into the ground.
SOIL-COVER COMPLEX METHOD
A method of runoff computation developed by the NRCS that is based on relating soil type and land use/cover to a runoff parameter called a "curve number (CN)."
STORAGE INDICATION METHOD
A reservoir routing procedure based on solution of the continuity equation (inflow minus outflow equals the change in storage) with outflow defined as a function of storage volume and depth.
STORM SEWER
A system of pipes and/or open channels that convey intercepted runoff and stormwater from other sources, but excludes domestic sewage and industrial wastes.
STORMWATER
The total amount of precipitation reaching the ground surface.
STORMWATER MANAGEMENT FACILITY
Any structure, natural or man-made, that, due to its condition, design, or construction, conveys, stores, or otherwise affects stormwater runoff. Typical stormwater management facilities include, but are not limited to, detention and retention basins, open channels, storm sewers, pipes, and infiltration structures.
STORMWATER MANAGEMENT PLAN
The plan for managing stormwater runoff in the Antietam Creek Watershed adopted by Franklin County as required by the Act of October 4, 1978, P.L. 864 (Act 167), and known as the "Antietam Creek Watershed Act 167 Stormwater Management Plan."
STREAM ENCLOSURE
A bridge, culvert or other structure in excess of 100 feet in length upstream to downstream which encloses a regulated water of this commonwealth.
SUBAREA
The smallest drainage unit of a watershed for which stormwater management criteria have been established in the stormwater management plan.
SUBDIVISION
The division or redivision of a lot, tract, or parcel of land by any means into two or more lots, tracts, parcels, or other division of land, including changes in existing lot lines for the purposes, whether immediate or future, or lease, partition by the court for distribution to heirs or devisees, transfer of ownership, or building or lot development; provided, however, that the subdivision by lease of land for agricultural purposes into parcels of more than 10 acres, not involving any new street or easement of access of any residential dwelling, shall be excepted.
WETLAND
Those areas that are inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions, including swamps, marshes, bogs, ferns, and similar areas. The term includes, but is not limited to, wetland areas listed in the State Water Plan, the United States Forest Service Wetlands Inventory of Pennsylvania, the Pennsylvania Coastal Zone Management Plan the United States Fish and Wildlife National Wetland Inventory and a wetland designated by a river basin commission.
[1]
Editor's Note: See 53 P.S. § 10503(1.1).