A. 
Unless a contrary intention clearly appears, the following words and phrases have, for the purpose of this chapter, the meanings given in the following subsections.
B. 
For the purpose of this chapter, words and terms used herein shall be interpreted as follows:
(1) 
Words used in the present tense include the future.
(2) 
The singular includes the plural, and words meaning plural include the singular.
(3) 
The word "person" includes a corporation, partnership, and association as well as the individual.
(4) 
The word "lot" includes the word "plot" or "parcel."
(5) 
The term "shall" is always mandatory.
(6) 
The word "Commission" and the words "Planning Commission" always mean the Hatfield Township Planning Commission.
(7) 
The word "Board" and the words "Township Commissioners" always mean the Hatfield Township Board of Commissioners.
(8) 
The word "engineer" always means the Hatfield Township Engineer unless otherwise specified.
(9) 
Except as may be otherwise qualified, the meaning of the word "subdivision" also includes "land development."
C. 
Any word or term not defined herein shall be used with a meaning of standard usage.
D. 
Unless otherwise expressly stated, the following terms shall, for the purpose of this chapter, have the following meanings:
AASHTO
American Association of State Highway and Transportation Officials, "A Policy on Geometric Design of Highways and Streets," latest edition.
ACCEPTED ENGINEERING PRACTICE
That which conforms to accepted principles, tests, or standards or nationally recognized technical or scientific authorities.
AGENT
Any person, other than the subdivider, who, acting for the subdivider or developer, submits to the Commission subdivision or land development plans for the purpose of obtaining approval thereof.
ALLEY
A right-of-way providing secondary vehicular access to the side or rear of two or more properties.
APPLICANT
Any person who submits to the Commission subdivision or land development plans for the purpose of obtaining approval thereof.
APPLICATION FOR DEVELOPMENT
Every application, whether preliminary or final, required to be filed and approved prior to start of construction or development, including but not limited to an application for a building permit, for the approval of a subdivision plat or plan or for the approval of a land development plan.
AS-BUILT DRAWINGS
Engineering or site drawings maintained by contractor as he constructs the project and upon which he documents the actual locations of improvements and changes to the original contract documents. The documents or copy, certified by a Pennsylvania surveyor shall be submitted to the Township at completion of the project.
BASE FLOOD
The flood which has been selected to serve as the basis upon which the floodplain management provisions of this chapter, the one-hundred-year flood, as referenced in the current Flood Insurance Study (FIS), Hatfield Township, prepared by the Federal Insurance Administration (FIA), Federal Emergency Management Agency (FEMA) and adopted by the Hatfield Township Board of Commissioners.
BASE FLOOD ELEVATION
The one-hundred-year flood elevation as referenced in the Flood Insurance Study (FIS), prepared by the Federal Flood Insurance Administration (FIA), Federal Emergency Management Agency (FEMA). Within the approximated floodplain, the base flood elevation shall be established as a point on the boundary of the approximated floodplain closest to the construction site in question or by acceptable hydrologic and hydraulic engineering techniques, whichever indicates the highest base flood elevation (elevations) on the site.
BLOCK
An area divided into lots and usually bounded by streets.
BOARD OF COMMISSIONERS
The Board of Commissioners of Hatfield Township.
BUFFER
A continuous strip of land of a prescribed width designed and functioning to separate the elements and uses of land which abut it and to ease the transition between those lands through the use of vegetation and trees.
BUFFER, BARRIER
A buffer similar to the above but intended to isolate uses through the use of more plantings. Barrier buffer is in addition to other buffer requirements.
BUFFER, SOFTENING
A buffer intended to mitigate the visual impact of adjoining facilities, but not a screen or opaque type buffer.
BUILDING
Any structure having enclosed walls and roof, permanently located on the land, intended for supporting or sheltering a use or occupancy. The word "building" shall include structures.
BUILDING SETBACK LINE
A line within a property defining the required minimum distance between any structure and the ultimate right-of-way line, side lot line or rear lot line.
CARTWAY
The portion of a street or alley intended for vehicular use.
CISTERN
An underground reservoir or tank for storing rainwater.
CLEAR SIGHT TRIANGLE
An area of unobstructed vision at street or driveway intersections defined by the right-of-way lines of the streets and by a line of sight between points on their right-of-way lines at a given distance from the intersection of the right-of-way lines.
COMMON OPEN SPACE
A parcel or parcels of land or an area of water, or a combination of land and water, within the development site and designed and intended for the use or enjoyment of residents of a development, not including streets, off-street parking areas, and areas set aside for public facilities.
CONSERVATION DISTRICT
Montgomery County Conservation District.
CONSTRUCTION
The construction, reconstruction, renovation, repair, extension, expansion, alteration, or relocation of a building or structure, including the placement of mobile homes.
COUNTY PLANNING COMMISSION
Montgomery County Planning Commission.
CROSSWALK OR INTERIOR WALK
A municipally or privately owned right-of-way, the purpose of which is to provide access for pedestrian traffic to adjacent streets or properties.
CUL-DE-SAC
A street intersecting another street at one end and terminating at the other in a vehicular turnaround.
CULVERT
A pipe, conduit or similar structure, including appurtenant works, which carries surface water.
CURBLINE
The outermost edge of the cartway or roadway.
CUT
An excavation; the difference between a point on the original ground and a designated point of lower elevation on the final grade; the material removed in an excavation.
DEDICATION
The deliberate devotion of property by its owner for general public use, by fee simple deed.
DESIGN STORM
The magnitude of precipitation from a storm event measured in probability of occurrence (e.g., fifty-year storm) and duration (e.g., 24 hours) and used in computing stormwater management control systems.
DEVELOPER
Any landowner, agent of such landowner, or tenant with the permission of such landowner who makes or causes to be made a subdivision or a land development.
DEVELOPMENT
Any man-made change to improved or unimproved real estate, including, but not limited to, buildings or other structures, the placement of mobile homes, streets and other paving, utilities, mining, dredging, filling, grading, excavation or drilling operations, and the storage of materials or equipment.
DEVELOPMENT PLAN
The provisions for development including a planned residential development, a plat of subdivision, all covenants relating to use, location and bulk of buildings and other structures, intensity of use or density of development, streets, ways and parking facilities, common open space and public facilities. The phrase "provisions of development plan," when used in this chapter, shall mean the written and graphic materials referred to in this definition.
DEVELOPMENT SITE
The specific tract of land for which a regulated activity is proposed.
DRAINAGE EASEMENT
A right granted by a landowner to a grantee, allowing the use of private land for stormwater management purposes.
DRAINAGE FACILITY
Any ditch, swale, gutter, pipe, culvert, storm sewer or other structure designed, intended, or constructed for the purpose of diverting or detaining surface waters from, or carrying surface waters off, streets, public rights-of-way, parks, recreational areas, or any part of any subdivision or contiguous land areas.
DRIVEWAY
A minor vehicular right-of-way providing access between a street and a parking area or garage within a lot or property.
DWELLING UNIT
A room or group of rooms within a building used as a complete housekeeping facility providing living, sleeping, cooking, dining and sanitary facilities, for one family; a residence.
EARTH DISTURBANCE
A construction or activity which disturbs the surface of the land.
EASEMENT
A limited right of use granted in private land for public or quasi-public purpose.
ENGINEERING CONSIDERATIONS
All engineering responsibilities as herein defined shall be those of the engineer of the Township of Hatfield, hereinafter referred to as the "Township Engineer." The Township Engineer will review the plan and any accompanying material for the proposed subdivision or land development and make his findings known in a report to the Township Planning Commission and the Board of Commissioners. This report will be considered by the Commission when reviewing the proposal. For the purpose of clearly identifying the extent of the Engineer's responsibility in the review of subdivision and land development proposals, the following engineering considerations are defined. The Engineer shall make recommendations concerning approval or disapproval of the application based upon these considerations as they are reflected in the plans submitted.
(1) 
Dimensions and areas of lots or parcels.
(2) 
Existing and proposed contours in relation to the proposed use and that of adjacent properties.
(3) 
Soil conditions; proposed erosion controls.
(4) 
Surface and subsurface drainage conditions and proposed storm drainage plans.
(5) 
Lighting plans.
(6) 
Utility plans and easement requirements.
(7) 
Road specifications, widths, cross sections, alignment, profiles, and intersections and future extensions.
(8) 
Location and design of street, parking area or drainage entrances and existing accessways, public and private.
(9) 
Methods and treatment of sanitary sewage.
(10) 
Conformance to the applicable zoning ordinance.
(11) 
Acceptability of materials, methods and construction indicated in final plans and specifications.
(12) 
Conformance to applicable sections of this chapter.
ENGINEER, PROFESSIONAL
A professional engineer duly licensed as such in the Commonwealth of Pennsylvania in accordance with the Professional Engineer and Professional Land Surveyor Registration Law, Act 367, as amended.[1]
EROSION
The removal of soil particles by the action of water, wind, ice or other geological agents.
FEEDER ROOTS
The small roots of a tree, located within the top 12 inches of soil.
FILL
Any act by which natural or man-made materials are placed, pushed, dumped, pulled, transported or moved to a new location above the natural surface of the ground or on top of the stripped surface, as well as the material or condition resulting therefrom.
FINANCIAL SECURITY
Any approved security which may be in lieu of a requirement that certain improvements be made before the Township Commissioners approval at final subdivision or land development plan, including cash, and other similar collateral or security agreements.
FLOOD
A temporary condition of partial or complete inundation of a normally dry land area.
GROUNDWATER RECHARGE
Replenishment of existing natural underground water supplies.
HALF OR PARTIAL STREET
A street parallel and adjacent to a property line having a lesser right-of-way width than required for satisfactory improvement and use of the street.
IMPERVIOUS SURFACE
Those surfaces which are covered in any way so as not to allow the ground beneath to absorb water at a natural rate, including, but not limited to, buildings, walks, roofs, swimming pools, man-made ponds, and paved or stoned areas.
[Amended 8-22-2012 by Ord. No. 637]
IMPROVEMENTS
Those physical additions, installations and changes required such as streets, curbs, sidewalks, water mains, sewers, drainage facilities, public utilities, and any other appropriate items required to render land equitable for the use proposed.
INFILTRATION STRUCTURES
A structure designed to direct runoff into the ground (e.g., french drains, seepage pits, and seepage trench).
LAND DEVELOPMENT
(1) 
Any of the following activities:
(a) 
The improvement of one lot or two or more contiguous lots, tracts or parcels of land for any purpose involving:
[1] 
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
[2] 
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.
(b) 
A subdivision of land.
(2) 
"Land development" does not include development which involves:
(a) 
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;
(b) 
The addition of an accessory building, including farm building, on a lot or lots subordinate to an existing principal building; or
(c) 
The addition or conversion of buildings or rides within the confines of an enterprise which would be considered an amusement park. For the 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 the proper authorities. (Only allowed in the LI Light Industrial District.)
LANDOWNER
The legal or beneficial owner or owners of land, including the holder of an option or contract to purchase (whether or not such option or contract is subject to any condition), a lessee, if he is authorized under the lease to exercise the rights of the landowner, or other person having proprietary interest in land, shall be deemed to be a landowner for the purposes of this chapter.
LOT
A designated parcel, tract or area of land established by a plat or otherwise as permitted by law and to be used, developed or built upon as a unit.
LOT AREA
The horizontal area of the lot lying within the lot lines; provided, however, that the following shall not be included in lot area:
(1) 
Area within a street right-of-way or ultimate right-of-way.
(2) 
Area within any required open space.
(3) 
Area within any floodplain conservation district.
(4) 
Area delineated as wetlands by a licensed engineer or soils scientist.
(5) 
Area within an existing easement or right-of-way of record.
(6) 
Area within any proposed easement or right-of-way on the lot.
LOT, CORNER
A lot which has an interior angle of less than 135° at the intersection of two street lines. A lot abutting upon a curved street or streets shall be considered a corner lot if the tangents to the curve at the points beginning with the lot or at the points of intersection of the side lot lines with the street right-of-way lines intersect at an interior angle of less than 135°.
LOT LINE CHANGE
The revision, subdivision or resubdivision of two lots for the purpose of the transferring of land area from one lot to the other and not creating a new building lot.
MAINTENANCE GUARANTEE
Security that may be accepted by the Township for maintenance of any improvement required.
MAJOR SUBDIVISION
Subdivision wherein lots abut existing streets of insufficient width and/or streets prepared to be laid out through unimproved land and have more than two lots. The plan shall conform to preliminary plans approved, including modifications and revisions specified by Hatfield Township. Major subdivisions shall also include multiple dwelling projects, shopping centers, and industrial parks.
MARGINAL ACCESS STREET
Minor streets, parallel and adjacent to major traffic streets, providing access to abutting properties and control of intersections with the major traffic street.
MINOR LAND DEVELOPMENT
Any land development which meets all of the following conditions:
(1) 
The proposal involves expansion of an existing building by no more than 25% to a maximum of 7,500 square feet.
(2) 
The proposal does not introduce a new use to the property.
(3) 
The proposal does not involve the creation of additional dwelling units.
(4) 
The proposal does not involve the construction of a new building larger than 7,500 square feet.
(5) 
The proposal does not require any additional stormwater management facilities or other public improvements.
(6) 
The specific property involved has received deferral of land development requirements no more than two times previous to the current proposal.
MINOR SUBDIVISION
The division of a single lot, tract or parcel of land into two lots, tracts or parcels of land for the purpose, whether immediate or future, of transfer, of ownership or of building development, providing the proposed lots, tracts or parcels of land thereby created have frontage on existing improved streets of sufficient width, and providing, further, there is not created by the subdivision any new street, streets, vehicular way, parking lots, easements or access or the need therefor. The subdivision of land previously subject to a minor subdivision shall be considered a major subdivision.
MOBILE HOME
A transportable, single-family dwelling intended for permanent occupancy, contained in one unit or in two or more units designed to be joined into one integral unit capable of again being separated for repeated towing, which arrives at a site complete and ready for occupancy except for minor and incidental unpacking and assembly operations, and constructed so that it may be used without a permanent foundation.
MOBILE HOME LOT
A parcel of land in a mobile home park, improved with the necessary utility connections and other appurtenances necessary for the erection thereon of a single mobile home.
MOBILE HOME PARK
A parcel or contiguous parcels of land which has been so designated and improved that it contains two or more mobile home lots for the placement thereon of mobile homes.
MULTIPLE-DWELLING BUILDING
A building providing separate living quarters for two or more families.
MUNICIPAL AUTHORITY
A body politic and corporate created pursuant to the Act of May 2, 1945 (P.L. 382, No. 164), known as the "Municipality Authorities Act of 1945."
[2]
ONE-HUNDRED-YEAR FLOOD
A flood that has one chance in 100 or a one-percent chance of being equaled or exceeded in any one year. For the purposes of this chapter, the one-hundred-year flood (base flood) as defined by the Federal Insurance Administration (FIA), Federal Emergency Management Agency (FEMA), in the Flood Insurance Study (FIS), Hatfield Township, or in such instances where the definition is approximated or indicated by other less technical methods and is required by Hatfield Township to be determined by acceptable hydrologic and hydraulic engineering techniques.
PEAK DISCHARGE
The maximum rate of flow of storm runoff at a given point and time resulting from a specified storm event.
PERMANENT MONUMENT
A specified structure of masonry or steel permanently placed on or in the ground, including those placed expressly for surveying reference.
PERVIOUS SURFACE
A surface that allows infiltration of water into the ground.
PLAN, FINAL SUBDIVISION AND LAND DEVELOPMENT
A complete and exact subdivision plan, prepared as for official recording, to define property rights and proposed streets and other improvements.
PLANNING COMMISSION
Hatfield Township Planning Commission.
PUBLIC GROUNDS
Includes:
(1) 
Parks, playgrounds, trails, paths and other recreational areas and other public areas;
(2) 
Sites for schools, sewage treatment, refuse disposal and other publicly owned or operated facilities; and
(3) 
Publicly owned or operated scenic and historic sites.
PUBLIC HEARING
A formal meeting held pursuant to public notice by the Board of Commissioners or Planning Commission, intended to inform and obtain public comment, prior to taking action in accordance with this chapter.
PUBLIC MEETING
A forum held pursuant to notice under the Act of July 3, 1986 (P.L. 388, No. 84), known as the "Sunshine Act," 53 P.S. § 271 et seq.
[3]
PUBLIC NOTICE
Notice published once each week for two successive weeks in a newspaper of general circulation in the Township. Such notice shall state the time and place of the hearing and the particular nature of the matter to be considered at the hearing. The first publication shall not be more than 30 days and the second publication shall not be less than seven days from the date of the hearing.
RELEASE RATE
The percentage of the predevelopment peak rate of runoff for a development site to which the postdevelopment peak rate of runoff must be controlled to protect downstream areas.
RESUBDIVISION
Any subdivision or transfer of land, laid out on a plan which has been approved by the Board, which changes or proposes to change property lines and/or public rights-of-way not in strict accordance with the approved plan.
RETENTION/DETENTION AREA
A water impoundment made by constructing a berm, dam or device to regulate flow of stormwater or made by excavating a pit for the purpose of retaining precipitation and releasing slowly into the ground or natural watercourses.
REVERSE FRONTAGE LOTS (THROUGH LOTS)
A lot extending between and having frontage on a major street and a minor street with vehicular access solely from the minor street.
RIGHT-OF-WAY
An easement or a strip of land occupied or intended to be occupied by a street, alley, crosswalk, sanitary or storm sewer, stream, drainage ditch, utility, or for another special use. The usage of the term "right-of-way" for land plotting purposes in the Township of Hatfield shall mean that every right-of-way hereafter established and shown on a final record plan is to be separate and distinct from the lots or parcels adjoining such right-of-way, and not included with the dimensions or areas of such lots or parcels. These rights-of-way, that involve maintenance by the Township of Hatfield, shall be dedicated to public use by the subdivider of the plan on which such rights-of-way are established.
RIGHT-OF-WAY, ULTIMATE
(1) 
The right-of-way width required for the expansion of existing streets to accommodate anticipated future traffic loads and as shown on the Township map or maps.
(2) 
A right-of-way established to provide future access to or through undeveloped land.
RIPARIAN CORRIDOR
Area surrounding surface water bodies, including creeks, lakes, watercourses and wetlands etc.
RUNOFF
That part of precipitation which flows over the land.
SCS
Soil Conservation Service, U.S. Department of Agriculture.
[4]
SEDIMENT
Solid material, both mineral and organic, that is in suspension, is being transported or has been moved from its site of origin by water.
SEDIMENTATION
The process by which mineral or organic matter is accumulated or deposited by moving wind, water, or gravity. Once this matter is deposited (or remains suspended in water), it is usually referred to as "sediment."
SEDIMENTATION BASIN
A barrier, dam, retention or detention basin designed to retain sediment.
SEEPAGE PIT/SEEPAGE TRENCH
An area of excavated earth filled with loose stone or similar material and into which surface water is directed for infiltration into the ground.
SEMI-IMPERVIOUS SURFACE
A surface such as stone, rock, concrete or other material which prevents some percolation of water into the ground.
SEWAGE FACILITY
Any sewer, sewage system, sewage treatment works or part thereof designed, intended or constructed for the collection, treatment or disposal of liquid waste including industrial waste.
SEWERS, CAPPED
Inactive or dry collector sewers installed during the process of construction of other improvements. Capped sewers are not immediately available to be junctioned to an active flowing operating collector or interceptor sewer line. Capped sewers include the installation of service laterals installed behind the curbline or to the right-of-way line for each property or dwelling. These service laterals are capped and sealed until such time as the collector line is junctioned to an operating sewer line.
SIGHT DISTANCE, STOPPING OR CLEAR
As defined in the current edition of AASHTO.
SLOPE
The face of an embankment or cut section; any ground whose surface makes an angle with the plane of the horizon. Slopes are usually expressed in a percentage based upon vertical distance in feet per 100 feet of horizontal distance.
SOIL-COVER COMPLEX METHOD
A method of runoff computation developed by SCS which is based upon relating soil type and land use/cover to a runoff parameter called a "curve number."
STORM SEWER
A system of pipes or other conduits which carries intercepted surface runoff, street water and other waters, or drainage, but excludes domestic sewage and industrial wastes.
STORMWATER MANAGEMENT PLAN
The plan for managing stormwater runoff adopted by Montgomery County for the Neshaminy Creek Watershed as required by the Act of October 4, 1978, P.L. 864 (Act 167), and known as the "Storm Water Management Act."
[5]
STREAM
A watercourse.
STREET (includes private roadways, parking, etc.)
Any street, avenue, boulevard, road, and parkway, viaduct, alley, or other way for the movement of vehicular traffic, which is an existing state, county or Township roadway, or a street or way shown upon a final drawing, heretofore approved, pursuant to law or approved by official action, and includes the land between street lines, whether improved or unimproved, and may comprise pavement, shoulders, gutters, sidewalks, parking areas, and other areas within the right-of-way. A public or private way used or intended to be used for passage or travel by automotive vehicles. If private, such way must be used or intended to be used as the principal means of access to abutting lot or lots to more than two dwellings on a lot on which a private way is exclusively used.
(1) 
Arterials.
(a) 
MINOR ARTERIALA street or highway which collects, carries and distributes medium volumes of traffic.
(b) 
PRINCIPAL ARTERIALA highway carrying a high volume of traffic with restricted or controlled access between expressways and collector roads.
(c) 
The entire length of the route proposed state highway currently commonly referred to as the "309 connector" shall be deemed an arterial street or arterial highway.
(2) 
Collector roads.
(a) 
MAJOR COLLECTORSDesigned to carry moderate to heavy traffic from arterial highways or expressways to local streets and distribute traffic throughout the Township and adjacent areas.
(b) 
MINOR COLLECTORSDesigned to carry moderate volumes of traffic between arterial and local roads and distribute traffic within limited areas, sections or neighborhoods in the Township. Also known as a "feeder street."
(3) 
Local streets.
(a) 
ALLEY or SERVICE STREETA minor way used primarily for service vehicle access to the rear or sides of properties otherwise abutting directly onto another street.
(b) 
CUL-DE-SAC STREETA street with one end open for vehicular access with the other end terminating in a turnaround of such length and geometries acceptable for PennDOT Liquid Fuels reimbursable purposes.
(c) 
DRIVEWAYGenerally, a private way for the use of vehicles and pedestrians providing access between a public street and an interior area within a lot or property.
(d) 
MARGINAL ACCESS OR FRONTAGE STREETA secondary street parallel and adjacent to an expressway, arterial or collector street, which provides access to abutting properties and separation from through traffic.
(e) 
RESIDENTIAL STREETA street carrying low volumes of traffic used to provide access to residential properties and connect with other residential streets and streets of a higher classification.
(4) 
EXPRESSWAYSThe highest classification of highway with controlled access carrying high volumes of through traffic. Also known as a "limited-access highway" or "freeway."
STREET LINE
The dividing line between the street right-of-way and the lot. The street line shall be the same as the legal right-of-way line, provided that the street right-of-way shall not be less than that required in § 250-29B of this chapter and, where a future right-of-way width for a street has been officially established, the street right-of-way so established.
STRUCTURAL FLOOR ELEVATION
The lowest floor of a structure which shall be eight inches minimum above finished ground elevation. A structural floor will include all floors within a building, including garage floors, having direct access to the outside. (Vehicular entrance into a garage shall be met by macadam at floor elevation for access purposes.) However, a structural floor will not include a floor with upward access to the outside finished grade.
STRUCTURE
Any man-made object having an ascertainable stationary location on or in land or water, whether or not affixed to the land.
STUB STREET
A street or road extending to a maximum depth of one lot from within a subdivision boundary and terminating with a temporary vehicular turnaround. Stub streets are provided to permit adjacent undeveloped parcels of land to be developed later with an adjacent connecting street system.
SUBAREA
The smallest unit of watershed breakdown for hydrologic modeling purposes for which the runoff control criteria have been established in the Neshaminy Creek Watershed Stormwater Management Plan.
SUBDIVIDER or DEVELOPER
The owner, or authorized agent of the owner, including, but not limited to, an individual or corporation that undertakes a subdivision or land development or any of the activities covered by this chapter, particularly the preparation of a subdivision plan showing the layout of the land and the public improvements involved therein. The term "subdivider" is intended to include the term "developer" even though the personnel involved in successive stages of the project may vary.
SUBDIVISION
(1) 
The division of a single lot, tract or parcel of land or any part thereof into two or more lots, tracts or parcels of land, including changes in street lines or lot lines for the purpose, whether immediate or future, of partition by the court for distribution to heirs or devisees, transfer of ownership, rent or of building development, including commercial and industrial sites and mobile home parks; provided, however, that divisions of land by lease for agricultural purposes in parcels of more than 10 acres not involving any new streets or easements or access shall be exempt from the provisions of this article. Subdivision shall include land development. Any development of a parcel of land which involves installation of streets and/or alleys, even though the streets and alleys may not be dedicated to public use and the parcel may not be divided immediately for purposes of conveyance transfer, sale or rent.
(2) 
Any development of a piece of land which involves installation of sanitary sewers, storm sewers, water mains, gas main or pipes, or other facilities for the use, whether immediate or future, of the owners or occupants, of the land, or of buildings abutting thereon shall be considered the same as subdivision.
(3) 
The term "subdivision" includes resubdivision and, when appropriate to the context, shall relate to the process of subdividing or to the land subdivided, or land development. The recombination of lots previously subdivided shall also be considered a subdivision.
SUBSTANTIALLY COMPLETED
Where, in the judgment of the Township Engineer, at least 90% (based on the cost of the required improvements for which financial security was posted pursuant to the requirements of this chapter) of those improvements required as a condition for final approval have been completed in accordance with the approved plan, so that the project will be able to be used, occupied or operated for its intended use.
SWALE
A low-lying stretch of land which gathers or carries surface water runoff.
TOWNSHIP LANDSCAPE ARCHITECT
A registered landscape architect of the Commonwealth of Pennsylvania designated to perform the duties herein specified, or the Township Engineer in lieu thereof.
TOWNSHIP SECRETARY
The Secretary of Hatfield Township or the office of the Secretary of Hatfield Township, or the authorized representative of the Secretary of Hatfield Township.
TREE DRIPLINE
A continuous line marking the outermost reaches of a tree's branches.
TREE PROTECTION ZONE
An area of a site designated on the landscape plan in which no construction activity or disturbance of any kind shall occur. Such area shall include all land within the dripline of any tree to be retained or any land otherwise within 15 feet of the trunk of a tree to be retained.
UNDEVELOPED LAND
Land in parcels sufficiently large for future subdivision which is presently in agriculture, woodland or lying fallow.
WATERCOURSE
Any channel of conveyance of surface water having defined bed and banks, whether natural or artificial, with perennial or intermittent flow.
WATER FACILITY
Any water works, water supply works, water distribution system or part thereof designed, intended or constructed to provide or distribute potable water.
WATER SURVEY
An inventory of the source, quantity, yield and use of groundwater and surface-water resources within the Township.
YARD
An open unoccupied space on the same lot with a building or other structure or use, open and unobstructed from the ground to the sky, except for public utility lines or facilities.
(1) 
FRONT YARDA yard extending the full width of the lot along the front lot line and extending in depth from the street line to the nearest point of any structure on the lot. The minimum required front yard shall not be less than the required front yard setback as specified for the applicable district in the Zoning Ordinance.[6]
(2) 
REAR YARDA yard extending the full width of the lot along the rear lot line and extending in depth from the rear lot line to the nearest point of any structure on the lot. The minimum required rear yard shall not be less than the required rear yard setback as specified for the applicable district in the Zoning Ordinance.
(3) 
SIDE YARDA yard extending the full depth of the lot along a side lot line and extending in width form such side lot line to the nearest point of any structure on the lot. The minimum required side yard shall not be less than the required side yard setback as specified for the applicable district in the Zoning Ordinance.
[1]
Editor's Note: See 63 P.S. § 148 et seq., the Engineer, Land Surveyor and Geologist Registration Law.
[2]
Editor's Note: The Municipality Authorities Act of 1945 was repealed by 2001, June 19, P.L. 287, No. 22, § 3. See now 53 Pa.C.S.A. § 5601 et seq.
[3]
Editor's Note: The Sunshine Act of 1986, Act 84 (65 P.S. § 271 et seq.), was repealed 10-15-1998 by P.L. 729, No. 93; see now 65 Pa.C.S.A. § 701 et seq
[4]
Editor's Note: Now the Natural Resources Conservation Service of the U.S. Department of Agriculture.
[5]
Editor's Note: See 32 P.S. §  680.1 et seq.
[6]
Editor's Note: See Ch. 282, Zoning.