A. 
General site information shall describe or outline the existing conditions of the site and the proposed development to the extent necessary to supplement the location map and sketch plan. Information may be subsequently required on existing covenants, land characteristics, available community facilities and utilities, and information describing the subdivision proposal, such as number of residential lots, typical lot width and depth, price range, business areas, playgrounds, parks and other public areas, proposed protective covenants and proposed utilities and street improvements.
B. 
Location map identifying the location of the subdivision in relation to major streets and other predominant landmarks shall be included.
C. 
Sketch plan shall show in simple sketch form the proposed layout of streets, lots and other features in relation to existing conditions, as well as scale, North point and date.
A. 
The scale of the preliminary layout shall be 100 feet to the inch (scale: one inch equals 100 feet). The scale, North point (oriented to the top of the drawing where possible) and date of preparation shall be shown, together with the data required below in Subsections B and C.
B. 
Existing conditions data shall include the following except when otherwise specified by the Planning Board:
(1) 
Key plan showing location and boundaries of tract.
(2) 
Mapped area on the preliminary layout shall include the proposed subdivision and a margin on all sides sufficient to indicate property ownerships bounding the proposed subdivision. Names of registered owners or record data of existing plats bounding the proposed subdivision shall be noted on the preliminary layout, together with all property line intersections with the subdivision tract boundary. All related farm lot lines shall be shown.
(3) 
Subdivision tract. Present tract designation and ownership, both according to official records in the office of the County Clerk, shall be indicated on the plat. Tract boundaries, taken from official deed description or as surveyed by a professional engineer or licensed land surveyor, shall be drawn to scale. The acreage within the proposed subdivision tract shall be indicated.
(4) 
Revision of recorded plats. In resubdividing a plat recorded in the office of the County Clerk, the resubdivision map shall retain the name of the original subdivision and shall indicate clearly in what manner the lots have been subdivided. The original lot lines shall be shown on the map in broken lines, and the boundary lines of the new lots in solid lines. If a map is submitted to revise or resubdivide lots on two or more plats of adjoining subdivisions previously recorded, the boundary lines of the original subdivisions shall be clearly shown in broken lines in addition to the above.
(5) 
Easements. Location, width and purpose of easements.
(6) 
Streets on and adjacent to the tract (including all streets shown on the Official Map). Name and right-of-way width and location; type, width and elevation or surfacing; any legally established center-line elevations; walks, curbs, gutters, bridges, culverts, etc.
(7) 
Utilities on and adjacent to the tract. Location, size and invert elevation of sanitary sewers, storm sewers, culverts, ditches or other facilities for drainage; location and size of water mains; location of gas lines, fire hydrants, electric and telephone poles and streetlights. If water mains and sewers are not on or adjacent to the tract, indicate the direction and approximate distance to and size of nearest ones, showing invert elevation of sewers or culverts. Where drainage is to be accomplished by a natural watercourse or drainage ditch, the elevation of water in such watercourse or ditch at recognized flood stage shall be shown.
(8) 
Ground elevations on the tract, based on United States Geodetic Survey datum plane. For land that slopes less than approximately 2%, show spot elevations at all breaks in grade, along all drainage channels or swales and at selected points not more than 100 feet apart in all directions; for land that slopes more than approximately 2%, either show contours at an interval of not more than five feet if ground slope is regular and such information is sufficient for planning purposes or show contours at an interval of not more than two feet if necessary because of irregular land or need for more detailed data for preparing plans and construction drawings.
(9) 
Subsurface conditions on the tract, if required by the Planning Board. Location and results of tests made to ascertain subsurface soil, rock and groundwater conditions; depth to groundwater unless test pits are dry at a depth of five feet; location and results of soil percolation tests if individual sewage disposal systems are proposed.
(10) 
Other conditions on the tract. Watercourses, marshes, rock outcrop, wooded areas, isolated preservable trees one foot or more in diameter, houses, other buildings and other significant features.
(11) 
Other conditions on adjacent land. Approximate direction and gradient of ground slope, including any embankments or retaining walls; power lines or towers.
C. 
Preliminary layout shall show all proposals, including the following:
(1) 
Streets. Names; right-of-way and roadway widths; approximate grades and gradients; similar data for alleys, if any.
(2) 
Other rights-of-way or easements. Location, width and purpose.
(3) 
Location of utilities, if not shown on other exhibits.
(4) 
Lot lines, lot numbers and block numbers.
(5) 
Sites, if any, to be reserved or dedicated for parks, playgrounds or other public uses.
(6) 
Sites, if any, for multifamily dwellings, shopping centers, churches, industry or other nonpublic uses exclusive of single-family dwellings.
(7) 
Site data, including number of residential lots, typical lot size and acres in parks, etc.
(8) 
Topography. Any major alterations to the land configuration under the proposed development shall be indicated.
(9) 
Other data. Subdivision name or title (under which to be eventually recorded).
D. 
Other preliminary plans. When required by the Planning Board, the preliminary layout should include profiles showing existing ground surface and proposed street grades, including extensions for a reasonable distance beyond the limits of the proposed subdivision; typical cross sections of the proposed grading, roadway and sidewalk; preliminary designs of any bridges and culverts which may be required; preliminary plan of proposed water mains to connect with existing public water supply, or alternative means of water supply approved by the County Health Department; preliminary plan of proposed sanitary sewers, with grades and sizes indicated, connecting with existing sanitary sewerage systems, or alternative means of treatment and disposal approved by the County Health Department; preliminary plan for collecting and discharging storm drainage. All elevations shall be based on United States Geodetic Survey datum plane.
E. 
Draft of protective covenants, if any, whereby the subdivider proposes to regulate land use in the subdivision and otherwise protect the proposed development, shall be submitted with the preliminary layout.
A. 
Improvement plans shall be prepared by and bear the seal of a professional engineer licensed to practice in New York State.
B. 
Improvement plans shall be presented on standard sheets 24 inches by 36 inches.
C. 
Improvement plans shall consist of the plans, profiles and details of required improvements (see Article VI).
A. 
Final subdivision plat shall be printed on linen or canvas-backed paper or drawn with pen and india ink or tracing cloth on sheets twenty by forty (20 x 40) inches. The scale shall be not greater than 100 feet to the inch. Where necessary, the plat may be on several sheets accompanied by an index sheet showing the entire subdivision. For large subdivisions the final subdivision plat may be submitted for approval progressively in contiguous sections satisfactory to the Planning Board. The final subdivision plat shall show the following:
(1) 
Primary control points approved by the Engineer, or descriptions and "ties" to such control points, to which all dimensions, angles, bearings and similar data on the plat shall be referred. Location and description of monuments (shown thus, "X"), lot corner markers (shown thus, "O") and bench marks (shown thus, "BM").
(2) 
Tract boundary lines, farm lot lines, right-of-way lines of streets, easements and other rights-of-way, and property lines of residential lots and other sites, with accurate dimensions, bearings or deflection angles, and radii, arcs and central angles of all curves.
(3) 
Name and right-of-way width of each street or other right-of-way.
(4) 
Location, dimensions and purposes of any easements.
(5) 
Number to identify each lot or site in numerical order within blocks; letter to identify each block.
(6) 
Purpose for which sites, other than residential lots, are dedicated or reserved.
(7) 
Names of record owners of adjoining unplatted land.
(8) 
Reference to recorded subdivision plats of adjoining platted land by record name, date and number.
(9) 
Certification by professional engineer or licensed land surveyor (including name, address, New York State license number and seal) as to accuracy of survey and plat.
(10) 
Signed statement by the applicant that he is the owner in fee simple of the land being subdivided.
(11) 
Certification of approval by County Health Department.
(12) 
Whenever a proposed subdivision includes parcels or rights-of-way to be dedicated for public use, and offer of cession shall be included on the final plat so dedicating the parcels and rights-of-way specifically enumerated thereon. Unless a separate restricted offer is made for any or all parcels to be dedicated for public use, every offer of cession shall be full, complete and immediate upon and only upon acceptance of such offer by the municipality. Offers made with restrictions shall be made separately and shall state in full the terms of the restrictions.
(13) 
Title, scale, North point and date.
(14) 
The final plat shall contain appropriate statements with dated signature spaces signifying approval or acceptance by the following in the order listed:
(a) 
The Engineer (regarding approval of required improvements).
(b) 
The Planning Board, Town of West Seneca.
(c) 
The Town Board, Town of West Seneca, attested by the Town Clerk.
(15) 
The following statement shall appear on the face of the map: "No subdivision lot shall be resubdivided without prior approval by resolution of the Town Board of West Seneca."
[Added 7-2-1962]
B. 
Separate documents.
(1) 
Agreements covering the improvement and maintenance of unceded public spaces and the conditions and time limits, if any, applying to site reservations.
(2) 
Attorney's certificate or title policy certifying that applicant is the landowner; and title insurance policy insuring all offers of cession.
(3) 
An agreement, acceptable to the Town Attorney, between the owner of the subdivided land and the town, stating that said owner will not transfer title to parcels having less than 300 feet of frontage on a subdivision street unless such street shall have been improved and accepted for maintenance purposes by the Town Board. Alternatively and in the discretion of the Town Board, a performance or other surety bond sufficient to cover the full cost of such improvements, as estimated by the Town Board, shall be furnished to the town by said owner.
(4) 
Statement by the Town Attorney approving as to legal sufficiency all offers of cession, all covenants governing the maintenance of unceded public open space and any action taken to establish or extend water and/or sewer districts; also approving the sufficiency of any bond offered in lieu of the completion of required subdivision improvements.
(5) 
Protective covenants in form for recording, including covenants governing the maintenance of unceded public spaces or reservations.
C. 
Other requirements.
(1) 
Such other certificates, affidavits, endorsements or other agreements as may be required by the Town Board in the enforcement of these regulations. In special cases where there are potential hazards of flooding or other hazards in the opinion of the Engineer, the town may require the services of an independent engineer or expert to recommend conditions under which the subdivision may be approved. The expense of such engineer or expert shall be borne by the subdivider.
(2) 
Where any water, storm sewer or sanitary sewer line, water plant or sewage treatment plant is to be installed by the developer outside existing districts, the establishment or enlargement of a water district, storm sewer district and/or a sanitary sewer district may be required.