Definitions. As used in this section, the following terms shall have the meanings indicated:
AQUIFERA saturated, permeable geologic formation that contains and will yield significant quantities of water.
CONDITIONAL USELand 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 DEPRESSIONThe 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 STANDARDSRegulations that apply to the development of structures and infrastructure within a designated wellhead protection district.
FIVE-YEAR TIME OF TRAVELThe 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 STANDARDSRegulations that apply to land use activities/business practices within a designated wellhead protection district.
PERMITTED USELand use or development that by design or operation is allowed without further technical or regulatory review within defined areas of a wellhead protection district.
PERSONAn individual, partnership, association, corporation, municipality or state agency, or other legal entity.
RECHARGE AREAThe 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 SUBSTANCESChemicals 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 TRAVELThe 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 FIELDA piece of land used primarily for the purpose of locating wells to supply a municipal water system.