[Adopted 1-30-2002]
[Amended 3-22-2007]
In addition to the submission requirements indicated in § 218-25G of the Zoning Bylaw, the site plan application shall contain the following:
A. 
A USGS locus map at a scale of one inch equals 100 feet that shows all streets, bodies of water, landscape features, topography, historic sites, habitats for endangered species within the parcel and within 200 feet of the parcel and all buildings within the parcel and within 200 feet of the parcel.
B. 
An existing condition plan that indicates all existing site features, including property lines, easements, buildings, parking lots, utilities (above and below ground), conservancy (wetlands), and topography.
C. 
The location and name of all streets and an indication of whether the street is public or private; street widths for all streets within 300 feet of the site.
D. 
On-site and abutting lot and easement lines.
E. 
Zoning district(s) boundary lines of the locus and all land within 200 feet of the parcel, including overlay districts and other districts not specifically mentioned; other districts such as: Floodplain, Conservancy (Wetland), Water Resource Protection, and zoning district boundary lines.
F. 
Seven signature lines for Planning Board approval along with a statement that "This Site Plan Approval does not necessarily indicate compliance with the Groton Zoning Bylaw."
G. 
Existing and proposed topography contour lines at two-foot intervals for the site and land within 200 feet of the property.
H. 
Cut and fill analysis of the existing and proposed topography, including proposed final grades of any on-site sewage disposal system.
I. 
Information on the location, size, type, and number of existing and proposed landscape features. A landscaping plan shall be provided. Said plan may be required to be prepared, stamped, and signed by a landscape architect registered in the Commonwealth of Massachusetts;
J. 
Information on location, size, and capacity of existing and proposed on-site and abutting utilities (water, sewer, drainage, electrical cable, etc.).
K. 
A zoning chart with the minimum area requirements per the Groton Zoning Bylaws,[1] including the number of required and proposed parking spaces, and existing and proposed open space and impervious area.
[1]
Editor's Note: See Ch. 218, Zoning.
L. 
Elevation and facade treatment plans of all proposed buildings, including all external mechanical systems and screening to be provided; a listing of materials to be used.
M. 
Information on the location, size, and type of parking, loading, storage, and service areas, hours of operation, delivery/export hours, lighting hours, public address systems, snow removal and snow storage areas.
N. 
The site plan(s) shall be at a scale of one inch equals 40 feet, except for building elevation plans, which shall be at a scale of one-eighth inch equals one foot or one-fourth inch equals two feet. A licensed architect shall stamp the building drawings;
O. 
The Planning Board may require an assessment of traffic impact and safety conditions performed by a professional traffic engineer. All plans shall indicate the sight distances at proposed and existing driveway intersections within 200 feet of the site.
P. 
Site plan(s) must be prepared, signed, and stamped by a professional engineer and a professional land surveyor registered in the Commonwealth of Massachusetts. The building elevation and facade drawings shall be prepared, signed, and stamped by a registered architect. Retaining walls shall be designed by a professional structural engineer registered in the Commonwealth of Massachusetts.
Q. 
After approval of the site plan, the applicant must supply a reproducible Mylar for endorsement and a copy of the site plan in digital format. The applicant shall submit a CD-ROM or DVD containing geographic data in accordance with the Standard for Digital Plan Submittals to Municipalities (Version 1.0) issued by the Office of Geographic and Environmental Information (MassGIS) in 2006, or the most recent edition of this publication. This publication, or any succeeding edition of this publication, is hereby incorporated as part of these regulations. The publication may be accessed via the MassGIS website: (http://www.mass.gov/mgis/standards.htm).
[Amended 3-22-2007]
A. 
Site landscaping.
(1) 
Every effort shall be made to retain and protect existing (six-inch trunk diameter or greater measured four feet above grade) trees, shrubs, and other landscape features on a site. Trees 12 inches' caliper or larger shall not be removed unless it can be demonstrated that such removal is necessary for the location of structures, roads, driveways, and utilities, and it can be further demonstrated that there were no alternatives to said removal.
(a) 
The entire site must be cleaned up so as to leave a neat and orderly appearance free from debris and other objectionable materials and without unfilled holes or other artificially created hazards. Slump dumps or other wood waste disposal areas are prohibited.
[Added 6-12-2003]
(2) 
Proposed landscaping plantings (trees, shrubs, etc.) shall not consist of plantings that are identified as an invasive species by the Planning Board. (The applicant can obtain a copy of the Invasive Species Plantings List from the Planning Board.)
(3) 
A minimum four-foot-wide landscaping strip shall be provided along the foundation walls to soften their appearance for all nonresidential building(s). The landscape strip may be staggered in order to vary the landscape design for a site. The minimum four-foot wide landscape strip shall provide screening to the portion of the foundation above grade.
(4) 
It is the purpose of these rules and regulations to preserve and/or maintain open space for new sites. Therefore, any lot or group of contiguous lots totaling less than three acres shall provide twenty-five-percent open space. A natural undisturbed open space is encouraged wherever possible. Any lot or group of contiguous lots totaling more than three acres shall provide thirty-five-percent open space. Open space shall be considered any area not occupied by buildings, paving, drives, roadways, sidewalks, etc. Wetland resources areas defined by the Massachusetts Wetland Protection Act can be used to meet the open space requirements described above. All open space areas on a site shall be adequately landscaped with trees, shrubs, flowers, grass, and/or mulch. Wherever feasible, open space shall be contiguous with other open space of abutting land. No more than 80% of the required open space shall be conservancy land (wetland).
(5) 
Parking lots containing 10 or more parking spaces shall have at least one tree per eight (or fractions of eight) parking spaces. Such trees are to be located within the paved parking area. Such trees shall have at least a four-inch trunk diameter, measured twelve to eighteen inches above grade, with a minimum of 60 square feet of seeded or landscaped permeable surface area per tree. When parking areas contain 25 or more spaces, at least 5% of the parking area shall be maintained with landscaping (within the interior of the parking area), including trees as above, in plots of at least six feet in width. Trees and landscaped plots shall be so designed and located as to provide visual relief and sun and wind screening within the parking area, and to ensure safe patterns of internal circulation. Planting areas are required along parking area perimeters to prevent off-site glare onto the public or private way(s). Parking lot plantings shall not block motorists' line of sight upon entering and exiting a site. Any landscaped area described above can be used to meet the open space requirement of this section for new sites.
B. 
Site lighting. Accessways, parking areas, and pedestrian walkways shall have adequate lighting for security and safety reasons during normal business hours. Lighting shall be arranged and shielded so as to prevent glare onto abutting properties, public ways, and the sky. All lighting shall comply with the International Dark-Sky Association (IDA) Fixture Seal of Approval program certification standards.
[Amended 2-18-2016]
(1) 
A photometric lighting plan shall be submitted that indicates the illuminations throughout the site and abutting ways/properties.
(2) 
Access road/parking shall be 0.5 footcandle minimum (maintained) and 30.0 footcandles maximum, with maximum twenty-foot pole and base height.
(3) 
Walkway lighting shall be 1.0 footcandle minimum (maintained) and a 30.0 footcandle maximum, with a maximum twenty-foot pole and base height. Ballast-style lighting posts are encouraged.
(4) 
The plan shall indicate the lights hours of operation especially shut off times.
C. 
Stormwater management.
(1) 
The stormwater management design shall mitigate the peak rate and volume runoff from the one-hundred-year storm event (design storm of seven inches of precipitation in 24 hours, i.e., a Type III rainfall as defined by the Natural Resources Conservation Service), across the boundaries of the site to preexisting levels. Provisions could be made to tie into public storm drains with the approval of the appropriate authority and the Planning Board after all parties have determined that all reasonable provisions have been made to minimize any changes to runoff from the site.
[Amended 3-22-2007]
(2) 
Compliance with all applicable federal, state and local regulations (including § 381-11, Stormwater management, of this chapter) and guidelines, including, but not limited to, the Department of Environmental Protection Stormwater Management Policy, as it may be amended, shall be demonstrated.
(3) 
The Board encourages the use of low-impact development stormwater techniques, if feasible. Please refer to Chapter 352, Earth Removal Stormwater Advisory Committee Regulations.
[Added 3-22-2007; amended 2-18-2016]
D. 
Parking lot layout.
(1) 
Parking lots shall be designed to include median strips and landscape islands to improve internal circulation. Additionally, landscaped or naturally vegetated islands should interrupt rows of parking. Parking spaces shall located be a minimum of 20 feet from the edge of the rights-of-way.
(2) 
Parking lots and access drives shall be designed to prevent motorists from stacking onto the public way. Parking areas shall be interconnected with abutting lots wherever feasible. Driveway entrances, exits, and typical lane widths shall be a minimum of 24 feet in width.
(3) 
Parking spaces shall be the following minimum dimensions:
Angle of Parking
Width of Space
(feet)
Depth of Space
(feet)
Width of Maneuvering Aisle
(feet)
90
9.0
18
24 (2-way traffic)
60
10.5
22
18 (1-way traffic)
45
13.0
25
14 (1-way traffic)
Parallel
9.0
22
14 (1-way traffic)
Parallel
9.0
22
18 (2-way traffic)
(4) 
Parking lots are encouraged to be placed at the side and rear of buildings. Handicap parking areas shall be placed in the most viable location according to the Americans with Disabilities Act and Massachusetts Architectural Access Board.
(5) 
Curbing shall be vertical granite at the access drive radii.
(6) 
All access drives parking areas and sidewalks shall be graded, paved (concrete or bituminous concrete), and drained in accordance with standards enumerated above.
(7) 
Curbing shall be placed at the edges of all surfaced areas. Curbing shall be vertical granite curb unless waived by the Planning Board for low-impact development (LID) drainage systems.
[Amended 2-18-2016]
(8) 
Massachusetts Highway Department (MHD) wooden guardrails or an approved equal are required where parking lots and driveways do not provide a minimum five foot wide shoulder area.
(9) 
Pavement standards.
[Added 3-22-2007]
(a) 
The parking lot shall be prepared in accordance with the requirements of § 381-22G, Gravel base.
(b) 
The parking lot shall have a crown of 3/8 inch per foot and shall be paved with SSH&B Section 460-Class I bituminous concrete (asphalt) pavement. The paving shall consist of a binder course of 2 1/2 inches compacted measure. The top course shall have 1 1/2 inches compacted measure. Compaction shall be performed with a minimum ten-ton roller or a vibratory roller. [When vibratory rollers are used for the compaction of base and binder material they shall be operated at a high amplitude setting and a low-frequency setting in the range of 1,500 to 1,700 vibrations per minute (VPM). When used for the compaction of surface courses, they shall be operated at a low amplitude setting at a minimum frequency setting of at least 2,200 VPM or higher.] The temperature of the mix, within a tolerance of plus or minus 15° when delivered at the project site, will be governed by the temperature of the base upon which the mix is placed as follows:
Mix Temperature
Base Temperature Upon Which Mix is Placed
(degrees in Fahrenheit)
Uncompacted Measure Thickness
(inches)
1
1 1/2
2
3 or Greater
35° to 40°
305
295
280
40° to 50°
310
300
285
275
50° to 60°
300
295
280
270
60° to 70°
290
285
275
265
70° to 80°
285
280
270
265
80° to 90°
275
270
265
260
90°+
270
265
260
255
[1] 
The installation of the bituminous concrete shall be performed with a self-propelled mechanical spreader and a ten- to fourteen-ton roller or a vibratory roller.
[2] 
The contact surface of manholes, catch basins and other appurtenant structures in pavement and abutting pavement of existing roads shall be painted thoroughly with a thin uniform coating of bitumen (Specification RS-1) just before any bituminous concrete mixture is placed against them.
[3] 
Bituminous concrete shall be placed and compacted only at such times as to permit the proper inspection and checking by the Board or its agent.
[4] 
The placement of bituminous concrete pavement shall terminate November 15 and shall not be resumed prior to April 1 except as determined and directed, in writing, by the Board or its designated agent depending upon the necessity and emergency of attendant conditions, weather conditions and location of the project.
(c) 
The Planning Board can waive the paving requirements to permit low-impact development design techniques.
(10) 
Sidewalks. All sidewalks shall be poured, Portland cement concrete sidewalk. Sidewalk construction shall comply with the following:
[Added 3-22-2007]
(a) 
Cement concrete shall meet the requirements specified as M4.02.00 (Air Entrained 4000 psi, 3/4 inch, 610) in the Massachusetts Standard Specifications for Highways and Bridges.
(b) 
In constructing all concrete sidewalks, the material shall be removed for the full width of the sidewalk to a subgrade of at least 12 inches below the approved finished grade. The foundation shall consist of at least eight inches of good binding gravel or crushed stone, thoroughly rolled and compacted to the satisfaction of the Board or its designated agent, and shall be brought to grade four inches below the approved finished grade.
(c) 
The concrete sidewalk shall be four inches in depth and shall have welded steel wire fabric conforming to AASHTO M55 located at mid-depth.
(d) 
The forms shall be well staked and thoroughly graded and set to the established lines.
(e) 
The concrete shall be placed in alternate slabs 30 feet in length except as otherwise approved. The slabs shall be separated by transverse preformed expansion joint filler 1/2 inch in thickness (M9.14.0).
(f) 
The surface of all concrete sidewalks shall be uniformly scored into block units of areas not more than 36 square feet. The depth of scoring shall be at least 1/4 of the thickness of the sidewalk.
(g) 
After troweling, the surface shall be brushed to produce a nonslip surface.
(h) 
When completed, the walks shall be kept moist and protected from traffic and weather for at least three days.
(i) 
Ramps for the handicapped shall be provided at all intersections, driveways and at the end of all dead-end streets. They shall conform to the Architectural Access Board current regulations (521 CMR), and the Americans with Disabilities Act (ANSI A117.1) current regulations.
E. 
Service facilities.
(1) 
Service facilities, such as dumpsters, utility areas, stock/miscellaneous storage, and other facilities not specifically identified shall be screened around their perimeters. Screening shall consist of fencing with gates and/or natural vegetation acceptable to the Planning Board. Screening shall be an effective height, width and quality to screen from public view said service facility.
(2) 
Roof top utility structures shall be screened with a facade to block views from abutters and public ways.
(3) 
Snow stockpiling areas shall be indicated on the Plan and placed in areas that will not block sight lines, drainage structures, parking spaces or site access.
(4) 
Temporary sanitation facilities (portable restrooms) shall be screened during construction activities.
F. 
Utility connections. All utility connections shall be constructed in accordance with the requirements of the Town departments and other utility companies.
G. 
Retaining walls. Retaining walls shall not exceed a height of four feet unless the Planning Board votes to waive this provision.
[Added 3-22-2007]
H. 
Harmonious development. The Board recommends that the applicant submit architectural elevations and plans to the Select Board for review pursuant to §218-24B, Promotion of harmonious development, concurrently with the application for site plan review.
[Added 3-22-2007; amended 10-1-2018 ATM by Art. 14]
I. 
Signs. The location and dimensions of all signs shall be shown on the site plan. Signs are subject to approval by Sign Committee or Historic Districts Commission pursuant to Chapter 196, Signs.
[Added 3-22-2007]
A. 
Requirements for issuance of permanent occupancy permit.
(1) 
No permanent occupancy permits shall be issued for any building or structure or portion(s) thereof, until:
(a) 
The Planning Board receives an as-built plan prepared by a professional land surveyor along with certification from a registered professional engineer that all construction (including utilities) has been done in accordance with the approved site plan; and
(b) 
The Planning Board or the Planning Board's designated agent verifies that the site plan and any conditions of the approved site plan have been met.
(2) 
All outstanding fees, including fees for engineering services, must be paid in full.
B. 
Temporary occupancy permits.
(1) 
Temporary occupancy permits may be issued for a portion of any building or structure, provided security is posted for the remaining work. The security shall be posted with the Town Treasurer in a form of a certified check or bank check. The amount is to be set by the Planning Board or Planning Board's designated agent. The time to complete such outstanding work will be part of the temporary occupancy permit. The amount of time to complete said work shall be within reason, which will be determined by the Planning Board or Planning Board's designated agent.
(2) 
Temporary occupancy permits will not be issued until all fees are paid.