(A) Any new developments that have an average density more than I Equivalent Residential Connection (ERC) per 1/2 acre for any contiguous area of the development with 33 or more ERCs, or 50 or more ERC for cluster developments, will be required to have one of the following ground water protection measures:
(1) A centralized wastewater collection and treatment system (WCTS).
(2) Septic drainfields that are designed for 1.5 times normal capacity.
(3) An exception to the requirements of division (A), including the installation of alternative on-site wastewater disposal systems, may be granted upon approval of a variance by the Northampton County Board of Zoning Appeals, as described in § 53.04.
(B) All new developments of 33 or more ERC, cluster developments with 50 or more ERC, or new developments with 4 ERC or more located within 1/4 mile of an aggregated groundwater withdrawal of 33 or more ERC, must submit to the Zoning Administrator the measures that will be taken to prevent over pumpage of ground water, in addition to the requirements of division (A) of this section. Ground-source heat pumps used for heating or cooling are restricted to using closed-loop ground-source heat pump wells as specified in the Virginia Department of Health Regulations 12 VAC 5-630-10 et seq. Ultra-low-flow plumbing fixtures are required, as specified in the Virginia State Wide Building Code, as well as one of the following measures:
(1) Two-well systems.
(2) A centralized water supply system.
(3) An exception to the requirements of division (B) may be granted upon approval of a variance by the Northampton County Board of Zoning Appeals, as described in § 53.04.
(Ord. passed 6-23-03)