The following information shall be provided on the same sheet, on separate sheets, or in narrative or table format as appropriate:
A. The names and full contact information for every person involved in developing the plan and who may have to be contacted for clarifications or additions. Such information must include mail address, land line phone number, fax number and email address. A cellular phone number should be included, if available.
B. The existing topography with contour lines at two-foot intervals. The surface elevation of all water bodies and wetlands within the tract shall be given, and ground surface shall be identified as to type, such as woodland, swamp, flowages, etc. All wetlands shall have been properly flagged and the locations thereof clearly shown. Street and lot lines shall be shown to facilitate orientation. Benchmarks shall be shown and designated. Brooks, ditches, walls and structures and spot elevations of high and low points shall be shown and identified. One-hundred-year floodplain limits shall be clearly indicated. Any additional information required by the Conservation Commission or the Board of Health shall also be shown. The topographic plan shall bear the stamp, date, and signature of either a registered professional engineer or a registered land surveyor.
C. Site improvements. A table shall show the legal requirements (minimums, maximums) of the zoning district (where applicable), existing conditions (where applicable) and the proposed site conditions for the following characteristics: lot size, total lot coverage, open space, percent wetlands, percent floodplain, developable site area, front yard, side yards, rear yard, any buffers, building height, minimum distance to groundwater, pre- and post-development runoff rates and groundwater recharge, net floor area and the number of parking spaces (including numbers of reserve parking, handicapped, and small car spaces), with supporting calculations. The table shall give the percentage of reserved parking spaces with respect to the total number of spaces provided.
D. The volume of "earth" as defined in §
420-1.6 of this chapter to be removed if applicable, or a statement indicating that "no earth is to be removed." Calculations for determining the amount of earth to be removed and/or the amount of fill to be brought to the site shall be prepared by and show the signature and seal of a registered professional engineer.
E. The plan shall indicate all easements, covenants or restrictions applying to the land, including zoning setbacks, side yards and rear yards. In addition, the plan shall show the proposed location of all buildings, wells and septic systems, if applicable, within the site. There must be a profile plan at a horizontal scale of 40 feet to the inch showing the size and location of existing and proposed water mains, fire hydrants, sewer lines, their appurtenances, and any other underground utilities including but not limited to electric, gas, telephone, or cable television services within and adjacent to the site. All fire hydrants off the site but within 500 feet of the principal building on the site shall be shown. If the site is to utilize an on-site well, its proposed location must be shown in addition to its setbacks from any building, structure, or sewage disposal system. The location of wells on abutting properties should be shown on the plan.
F. The location of any proposed municipal fire alarm boxes or other warning systems and any proposed fire lanes shall be clearly shown and identified. Any underground conduit for municipal fire alarm connections shall be shown.
G. The location of any underground storage tanks for fuel or other chemical storage, including the tank types, capacities, and conditions shall be shown. If existing underground storage tanks are present at the site, their location, size, capacities, type and date of installation shall be given. The Fire Chief will determine whether the tanks may be reused or should be removed.
H. Storm drainage runoff calculations used for the drainage system design must be prepared by and display the seal of a registered professional engineer. These calculations must be based on a recognized standard method (usually the Rational Formula or Natural Resources Conservation Service Method). The calculations must contain a written summary explaining the rationale of the design so that a layperson can understand the basic design approach and its validity for the site in question. Furthermore, the calculations should be fully documented, including copies of charts or other reference sources to make review possible. The pre- and post-development runoff rates must be provided. The use of computer-generated reports is acceptable; however, the source of the software should be identified.
(1) Calculations shall be provided to support the sizing of all drainage structures and pipes. The system design shall not result in serious flood hazards during a one-hundred-year storm. If the site plan includes a reserve parking area, the storm drainage system for this area should be included in these calculations.
(2) Location and types of stormwater drainage facilities, including notes on the construction materials of any pipes, culverts, catch basins or any other system component. Sufficient information relating to placement of the drainage system components (rim and invert elevations, pipe slopes, amount of cover, etc.) shall be shown so that the operation of the system can be evaluated. Any drainage ponds intended to be constructed shall be shown, fully dimensioned. If a reserve parking area is proposed, the plan shall show the stormwater drainage structures intended for construction should the reserve parking area be built in the future.
(3) A typical detail of a proposed catch basin, diversion box, emergency slidegate, manhole, headwall, retaining wall, walkway, subdrain, waterway, leaching basin, drainage pond, or other similar structure, if any, must be shown. In the Groundwater Protection Overlay District, catch basins must be precast concrete with gas traps (Lebaron 1-219, Neenah 3705, or equivalent). Precast catch basins must show gas traps and construction joints sealed with a minimum of one-inch butyl-rubber gas-tight sealant or equivalent caulking material.
(4) Water balance calculations for sites all or partly within a Groundwater Protection Overlay District: The portion of the site in each Groundwater Protection Overlay District shall be noted. A yearly hydrologic water balance calculation for pre- and post-development conditions based on annual precipitation that quantifies evapotranspiration, runoff, recharge and septic flow shall be included. Compliance with applicable portions of §
300-4.5 of the Zoning Bylaw shall be demonstrated.
I. If the site lies within a known aquifer or potential area, the Board may require a hydrogeological study based on the most current groundwater survey.
J. The plan must include existing and proposed pavement, sidewalks, grass strips and side slopes.
K. The perimeter outline of any existing or proposed on-site sewage disposal systems, including any required reserve areas, shall be shown. The type of sewage disposal system shall be identified by a simple notation. Design and construction specifications for a sewage disposal system must comply with the Board of Health's regulations and be approved by that Board prior to final approval of the site plan. The proposed location of the sewer main running from the building to the sewage disposal system must be shown. If a sewage system other than an on-site sewage disposal system is to be used, the location of any sewer main to be installed on the property in question must be shown and adequate capacity at the off-site system demonstrated. If the proposed development includes the construction of a sewage treatment plant, then the location of the plant and the sewer main to serve the facility in question must be shown.
L. The front, sides, and rear elevations of each building shall be shown at an appropriate scale, generally not less than 1/8 inch equals one foot. The sill height and peak height of each building shall be shown, referenced to the site benchmark used for the topographical plan.
M. All provisions for off-street loading and unloading shall be shown on the plan. A detailed description of the loading/unloading needs of the proposed use shall be provided and shall include, at a minimum: the number of deliveries/departures expected per day; size and type of vehicles loading/unloading at the site; type of goods, materials, etc. being loaded/unloaded. Location of loading/unloading areas at the site and access/egress to/from the site shall be shown on the plan.
N. All parking facilities shall be shown with proper dimensions. Parking spaces must be identified as either standard size, handicapped, or compact car parking spaces.
(1) A floor plan shall be provided for each floor of each building, whether such building is existing or proposed, so that compliance with the parking requirements of the Zoning Bylaw for the use to be conducted on the floor in question can be demonstrated. Each floor plan must be dimensioned to show the net floor area. The floor plan shall be drawn at a scale of 1/4 inch equals one foot or other scale acceptable to the Board.
(2) A typical detail of each type of parking space to be used on the site showing the dimensions of the "parking stall length of line" and the "width of parking stall" so that compliance with the parking area design standards of the Zoning Bylaw or its appendices is evident.
O. The location of any existing or proposed outdoor lighting facilities shall be shown.
P. Landscaping information must be shown on a separate plan sheet or sheets. In addition to showing landscape treatments planned for the site, the landscape plan shall include general site features such as lot lines, existing and proposed structures, parking areas, curbs, walkways, loading areas, land contours, water bodies, wetlands, streams, ledge outcroppings, and large boulders so that it may be easily related to the other plans. Any area intended to meet parking lot landscaping area requirements of the Zoning Bylaw shall be fully dimensioned and its area noted so that compliance with the Zoning Bylaw may be determined. The screening of parking areas facing public ways and residential zones or uses shall be required.
(1) Planting table. The botanical and common name of each species, its height (at planting), its spread (at maturity) and the quantity intended to be planted shall be listed in a table, along with the symbols used to represent the plants on the plan.
(2) Landscaping details. A typical detail of a tree well, tree planting, and specialty planting area, if applicable, shall be shown.
(3) Limits of work. Any area where existing conditions may reasonably be expected to be disturbed during construction shall be shown and identified on the landscape plan.
(4) Perimeter of trees. The perimeter of any existing wooded areas on the site shall be shown. Existing wooded areas intended for preservation shall be noted. The location, size, and proposed fate of any existing trees larger than 16 inches Dbh shall be shown.
Q. All proposed signage shall be shown on the site plan. Each sign shall also be fully described on a separate sheet. Said description shall include, at a minimum, dimensions, materials of which it (they) is (are) to be constructed, how and where they are to be displayed, etc. All signage shall conform to the requirements of Article IX of the Zoning Bylaw. The outline or footprint of any existing signs shall be shown and their final disposition must be noted.
R. If licenses, permits, orders of conditions and other approvals have been issued by any public authority in connection with this site development, copies of such documents shall be furnished. The applicant shall also provide copies of any such approvals issued during the pendency of the application.
S. Notes shall be included on the plan that:
(1) Forbid the use of fill containing hazardous materials.
(2) Require the marking of the limits of work in the field before the start of construction or site clearing.
(3) Require the cleaning of catch basins, sumps and stormwater basins following construction and annually thereafter.
(4) Restrict the hauling of earth materials to or from the site to the hours between 9:00 a.m. and 4:00 p.m. on weekdays.
(5) Describe the materials to be used in the construction of impermeable surfaces such as sidewalks and driveways.
T. If the project is to be built in phases, a plan or series of plans showing specific limits of construction for each phase and detailing the work to be accomplished in each phase shall be provided. Interim curbing and landscaping shall be shown as needed between phases.
U. Design certifications. Each plan sheet shall show the seal of a registered professional engineer, registered land surveyor, registered landscape architect, registered professional architect, or some combination of these as appropriate to the data on the sheet.
V. The plan shall show the following, where applicable:
(1) Clear identification of each area intended to be used as open space on the site with the square footage of each such area shown. A separate sheet may be necessary to show these areas adequately.
(2) All driveway entrances dimensioned so that compliance with the access requirements of the Zoning Bylaw may be determined. The size of the largest truck expected to use the site shall be noted. All the drives and entrances must be designed to accommodate the designated size of truck. The smallest size for the design shall be the SU-30 design vehicle so that fire trucks may maneuver on the site.
(3) Intersections and driveway entrances on other lots within 75 feet of the site with the distance between driveways dimensioned.
W. The application may contain such additional information the applicant feels is necessary to inform the Board properly about the development, including legal opinions, copies of deeds, historical data, studies, and reports.
X. The Board is empowered by these regulations to require information in addition to that specifically required by these regulations. The Board will require the applicant to supply additional information if it finds that such information is necessary to act properly upon the application.