The purpose of these performance standards is to ensure that any allowed use can be conducted in a manner which would not adversely affect the surrounding natural or human environment by creating a dangerous, injurious or objectionable condition.

These performance standards shall be enforced by the Building Commissioner for the Town and will be in force throughout the life of the use or related structure(s).

Measurements to confirm compliance with these standards shall be provided by the applicant if requested by the Building Commissioner. The determination of the existence of any dangerous or objectionable elements shall be made at or beyond the property lines of the use creating such elements, wherever the effect is greatest. Measurements may be made by any public or private agency, firm or person competent to perform such activity.

Exterior area lighting, including but not limited to lighting for parking lots, recreational areas, walks, drives and outside building walls, shall be done in such a manner so as to direct light away from adjacent lots and public ways.

Light overspill onto adjacent areas shall not exceed 0.5 footcandle measured in residential districts or three footcandles measured in nonresidential districts, except that if the ambient level exceeds that, then overspill shall not be such as to create observable shadows.

No flickering or flashing lights shall be permitted.

No light shall be attached to a freestanding pole or pylon taller than 25 feet except in the Planned Commercial Village Center, where poles or pylons up to 30 feet are allowed. Installation methods employed for lights located on posts or pylons that are greater than 10 feet at their highest point must be reviewed and certified for safety by the Building Commissioner. Structural drawings and specifications for the installation, including the foundation, shall be submitted by a professional engineer registered in the Commonwealth of Massachusetts so as to conform to the State Building Code.

All streets shall be safely lit.

Excessive noise at unreasonable hours shall be muffled so as not to be objectionable due to volume, frequency, shrillness or intermittence.

No noise shall be in excess of 55 decibels at any lot line opposite or abutting a residential use or in excess of 90 decibels at any other line, except for temporary construction or maintenance work, agricultural activity, timber harvesting, traffic, church bells, emergency warning devices, parades or other similar special circumstances.

In a residential district, noise shall not exceed 55 decibels between the hours of 9:00 p.m. and 7:00 a.m. and, at all other times, shall not exceed 55 decibels at any residential lot line for more than 20 minutes in each hour.

Is readily detectable at the property line of the lot on which the use emitting the toxic or noxious material or odor is located and contains properties which, by chemical or other means, are inherently harmful to destroy life or impair health or capable of causing injury to the well-being of persons or damage to property; or

As judged by a person of ordinary sensibility, repeatedly creates an offensive smell of a strength and frequency that interferes with the quiet enjoyment or valuation of one or more neighboring properties.

All activities and all storage of flammable and explosive materials at any point shall have adequate firefighting and fire-suppression devices and equipment.

No highly flammable or explosive liquids, solids or gases shall be stored in bulk above the ground, unless they are located in anchored tanks at least 75 feet from any lot line or Town way or 40 feet from the lot line for underground tanks. All relevant federal and state regulations shall be met.

Propane gas tanks in 100-pound cylinders (or smaller) shall be exempt from these safety regulations.

No waste material, liquid or solid, or refuse shall be dumped upon, or permitted to remain upon, any part of the lot or tract outside of the buildings constructed thereon.

Any waste material, liquid or solid, or refuse stored outside the buildings shall be sorted into secure containers in such a manner that wind, rain, other environmental factors, animals and humans cannot cause a nuisance or hazard by gaining access to the materials and allowing the materials to escape from the secure containers by scattering, leaking, draining or other means. It is equally important that edible wastes be secured from access to rodents or insects. Finally, it is intended that all waste that is currently recyclable be segregated into clearly identified containers for that use by the Commonwealth of Massachusetts.

Roll-off containers.

Whenever the existing contours of the land are altered during construction or otherwise, the land shall be left in a usable condition, graded in a manner to prevent the erosion of soil and the alteration of the runoff of water to or from abutting properties, and shall be suitably landscaped. Whenever a structure is involved, the remediation described above shall be accomplished within six months of occupancy of the structure.

Dust control shall be used during grading operations.

All requirements of the Lee Conservation Commission and the Massachusetts Department of Environmental Protection must be adhered to.

Wind energy conversion systems, machinery and equipment shall not cause interference with radio and/or television broadcasting or reception and shall comply with the provisions of 47 CFR 15 (Federal Communications Commission), as it exists or as it may be amended.

The base of a windmill shall be set back from all property lines and principal buildings at least the setback distance shown on the Wind Turbine Setback Graph, Northeast Solar Energy Center Report, March 1979.

All materials, supplies and equipment shall be stored in accordance with the Fire Prevention Standards of the National Fire Protection Association and shall be screened from view from public ways or abutting properties.

After 2024, outside waste storage areas in the DCBC, CBC and RB Zones shall be enclosed by an opaque fence and gates or other solid wall enclosure. This requirement does not apply to one- or two-family residential uses.

All outside waste storage enclosure gates shall remain closed except when being serviced.

For purposes of this section: