Zone I

The protective radius required around a public water supply well or wellfield, as defined in Massachusetts Drinking Water Regulations, 310…

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Zone II

That area of an aquifer which contributes water to a well under the most severe pumping and recharge conditions that…

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Design Flow

The quantity of sanitary sewage, expressed in gallons per day (gpd), for which a system must be designed in accordance…

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Bedroom

A room providing privacy, intended primarily for sleeping and consisting of all of the following: floor space of no less…

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Certified System

An alternative system which has been approved by the Department for specified uses or site conditions pursuant to 310 CMR…

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Alternative Systems

Systems designed to provide or enhance on site sewage disposal which either do not contain all of the components of…

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Agency

an agency, department, board, commission or authority of the Commonwealth or of the federal government and any authority of any…

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