Definitions. As used in this section, the following terms shall have
the meanings indicated:
AQUIFER
A saturated, permeable geologic formation that contains and
will yield significant quantities of water.
CONDITIONAL USE
Land use or development that either by design or operation
requires additional technical or regulatory review and permitting
in order to exist within defined areas of a wellhead protection district.
CONE OF DEPRESSION
The area around a well in which the water level has been
lowered at least 1/10 of a foot by pumping of the well.
DESIGN STANDARDS
Regulations that apply to the development of structures and
infrastructure within a designated wellhead protection district.
FIVE-YEAR TIME OF TRAVEL
The five-year time of travel is the recharge area upgradient
of the cone of depression, the outer boundary from which it is determined
or estimated that groundwater will take five years to reach a pumping
well.
OPERATING STANDARDS
Regulations that apply to land use activities/business practices
within a designated wellhead protection district.
PERMITTED USE
Land use or development that by design or operation is allowed
without further technical or regulatory review within defined areas
of a wellhead protection district.
PERSON
An individual, partnership, association, corporation, municipality
or state agency, or other legal entity.
RECHARGE AREA
The area which encompasses all areas or features that, by
surface infiltration of water that reaches the zone of saturation
of an aquifer, supplies groundwater to a well.
REGULATED SUBSTANCES
Chemicals and chemical mixtures that are health hazards,
except for products registered as pesticides under the Federal Insecticide,
Fungicide and Rodenticide Act (FIFRA). Health hazards for chemicals and chemical mixtures are
typically identified on Material Safety Data Sheets (MSDS) available
from the substance manufacturer or supplier. Substances packaged for
consumption for humans or animals are not considered regulated substances.
regulated substances include:
(1)
Chemicals for which there is scientific evidence that acute
or chronic health effects may result from exposure, including carcinogens,
toxic and highly toxic agents, irritants, corrosives, sensitizers,
hepatotoxins, agents that act on the hematopoietic system, reproductive
toxins, and agents which damage the lungs, skin, eyes, or mucous membranes
as defined in 29 CFR 1910.1200, Appendix A, "Health Hazard Criteria
(Mandatory)."
(2)
Mixtures of chemicals which have been tested as a whole and
have been determined to be a health hazard.
(3)
Mixtures of chemicals which have not been tested as a whole,
but which contain any chemical which has been determined to be a health
hazard and comprises 1% or greater of the composition on a weight-per-unit
weight basis.
(4)
Mixtures of chemicals which include a carcinogen if the concentration
of the carcinogen in the mixture is 1/10 of 1% or greater of the composition
on a weight-per-unit weight basis.
(5)
Ingredients of mixtures prepared within the Groundwater Protection
Overlay District in cases where such ingredients are health hazards
but comprise more than 1/10 of 1% of the mixture on a weight-per-unit
weight basis if carcinogenic, or more than 1% of the mixture on a
weight-per-unit weight basis if non- carcinogenic.
(6)
Petroleum and nonsolid petroleum derivatives (except non-PCB
dielectric fluids used in equipment or for transmission of electric
power to homes and businesses).
THIRTY-DAY TIME OF TRAVEL
The thirty-day time of travel is the recharge area upgradient
of a well, or its cone of depression, the outer boundary of which
it is determined or estimated that groundwater will take 30 days to
reach a pumping well.
WELL FIELD
A piece of land used primarily for the purpose of locating
wells to supply a municipal water system.