4711. 
Purpose. The purpose of this regulation is to permit the construction and operation of natural gas custody transfer facilities in the Town of Sharon while minimizing their adverse impact on adjacent properties and residential neighborhoods and limiting the number of such facilities to those which are essential. For the purpose of these bylaws, "natural gas custody transfer facility" shall mean a gate station at which natural gas will be received and reduced in pressure for transfer and introduction into the service system.
4712. 
General requirements. No natural gas custody transfer facility shall be constructed or operated except in compliance with the provisions of this section. In all cases, a special permit is required from the Zoning Board of Appeals. Any proposed material adjustment or renovation of the facility shall be subject to a new application for a special permit.
4713. 
Application process. All applications for a special permit for a natural gas custody transfer facility shall be made and filed on the appropriate form in compliance with the rules and regulations of the Sharon Zoning Board of Appeals. In addition, each applicant must submit the following information as part of its application:
a. 
A locus plan at a scale of one inch equals 100 feet which depicts all property lines, precise locations of proposed structure(s), streets, landscape features, and residential dwellings and buildings, which are within a five-hundred-foot radius of the proposed facility. The plan shall also identify all abutters to the property as shown on the most recent Town Assessor's Map; and
b. 
Engineer's certification that the proposed facility complies with all applicable federal and state standards regulating such facilities.
4714. 
Special permit review. Applications for a special permit for a natural gas custody transfer facility shall be reviewed in accordance with the procedures under Subsection 6310 of this Zoning Bylaw. In addition, every applicant must demonstrate that the proposed natural gas custody transfer facility provides adequate safeguards to protect the public, control noise and other emissions, and complies with the applicable building height limitations contained in Section 2400 et seq. of this bylaw.
4721. 
Purpose. The purpose of the Wastewater Overlay District is to enhance the public welfare by protecting groundwater resources by providing a higher level of wastewater treatment than is required under 310 CMR 15.000, the State Environmental Code, Title 5.
4722. 
Requirements. An applicant may submit a site plan application subject to the site plan review (SPR) requirements of Subsection 6323a for development of a wastewater treatment plant within the Wastewater Overlay District as shown on the Zoning Map, Town of Sharon, Massachusetts.
4723. 
Application. Wastewater Overlay Districts shall be considered as superimposed on underlying districts created under this bylaw. Wastewater Overlay District development shall conform to all other provisions of this bylaw.
4724. 
Permitted principal uses: wastewater treatment plants for sewage generated on the lot and off-site on lots located in the Professional District B or on certain lots located in the Single Residence A District as provided herein. The wastewater treatment plant must be authorized by a groundwater discharge permit by the Massachusetts Department of Environmental Protection and a treatment works construction permit by the Sharon Board of Health. Such wastewater treatment plant shall treat a maximum of 48,000 gallons of wastewater per day. Within Aquifer Protection Districts, groundwater shall meet or exceed Massachusetts drinking water standards at the property line. Wastewater generated on lots in the Single Residence A District may be accepted for treatment only from developed lots with residences occupied prior to the date of initial operation of the wastewater treatment plant or from lots capable of accommodating on-lot septic systems that conform to Title 5 and Sharon Board of Health regulations, and further provided that said lots are located within 1,000 feet of the Wastewater Overlay District as measured form the nearest point on the boundary of the Wastewater Overlay District to the nearest point on the boundary of the lot.
4725. 
Wastewater Overlay District requirements.
a. 
Minimum lot area: nine acres.
b. 
Minimum lot width: 300 feet.
c. 
Minimum frontage: 200 feet.
4726. 
Location. All components of the wastewater treatment plant, including the building, underground equipment, and the soil absorption system, but excluding sanitary sewer lines and sanitary force mains, shall comply with the location requirements of this section.
a. 
Minimum front setback: 40 feet.
b. 
Minimum setback from side or rear lot lines: 35 feet.
c. 
Minimum setback from existing residential lots: 150 feet from the lot lines of lots with residential structures existing at the time of building permit issuance.