310 C.M.R. 9.12
(1) Prior to issuance of the public notice, the Department shall classify the project as a water-dependent use project or as a nonwater-dependent use project. The Department shall classify as a water-dependent use project any project which consists entirely of:
(2) The Department shall determine a use to be water-dependent upon a finding that said use requires direct access to or location in tidal or inland waters, and therefore cannot be located away from said waters. In making this determination, the Department shall act in accordance with the following provisions.
(a) The Department shall find to be water-dependent the following uses:
(b) The Department shall find to be water-dependent-industrial the following uses:
(c) In the case of industrial and infrastructure facilities not listed in 310 CMR 9.12(2)(b), which are dependent on marine transportation or require large volumes of water to be withdrawn from or discharged to a waterway for cooling, process, or treatment purposes, the Department shall act in accordance with the following provisions:
be based on a comprehensive analysis of alternatives and other information analyzing measures that can be taken to avoid or minimize impacts on the environment, in accordance with M.G.L. c. 30, §§ 61 through 62H. If an EIR is not submitted, such findings shall be based on information presented to the Department in the application and during the public comment period thereon. (d) In the case of an infrastructure crossing facility, or any ancillary facility thereto, for which an EIR is submitted, the Department shall find such facility to be water-dependent only if the Secretary has determined that such facility cannot reasonably be located or operated away from tidal or inland waters, based on a comprehensive analysis of alternatives and other information analyzing measures that can be taken to avoid or minimize adverse impacts on the environment, in accordance with M.G.L. c. 30, §§ 61 through 62H. If an EIR is not submitted, such finding may be made by the Department based on information presented in the application and during the public comment period thereon.
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(f) The Department shall not find the following uses to be water-dependent:
(3) Accessory Uses.
(a) The Department may determine a use to be accessory to a water-dependent use upon a finding that said use is customarily associated with and necessary to accommodate a principal water-dependent use. Such a finding shall be made only if the proposed use is:
include, but are not limited to, access and interior roadways, parking facilities, administrative offices and other offices primarily providing services to water-dependent uses on the site, yacht clubhouses, restaurants and retail facilities primarily serving patrons of the water-dependent use on the site, bait shops, chandleries, boat sales, and other marine-oriented retail facilities. Uses that may not be determined to be accessory to a water-dependent use include, but are not limited to, general residential facilities, hotels, general office facilities, and major retail establishments. (b) The Department may find a use to be accessory to a water-dependent industrial use if, in addition to the criteria listed in 310 CMR 9.12(3)(a)1. and 2., the hours of operation of the use do not extend beyond the hours of operation of the water-dependent industrial use, except for support services which occur outside of the hours of the accessory use, and the use does not require a significant additional investment in infrastructure apart from that necessary for the primary water-dependent industrial use. Examples of water-dependent industrial accessory uses include, but are not limited to, ticketing booths for ferry operations, snack bars, and administrative offices associated with the water-dependent industrial use.