The following definitions apply to the interpretation of this chapter. Unless otherwise defined here, definitions found in
310 CMR also apply to this chapter.
AESTHETICSRetention or improvement of natural conditions, including natural lighting, sound, odors and significant trees, as at the time are experienced by the general public from public ways, including waterways. Activities in or within 100 feet of any resource area shall not have significant effects on aesthetic values.
AGRICULTUREAny work which produces food or other products for commerce or subsistence which occurs in, on, or within 100 feet of a resource area or which is directly or indirectly dependent upon wetlands values for proper agricultural functions, such as prevention of pollution or maintenance of adequate water flow for irrigation. Agriculture includes, but is not limited to the growing of crops, including cranberries, and the raising of livestock. Nonagricultural activities in or within 100 feet of resource areas shall not have a significant effect on existing agriculture. Notwithstanding this definition, new or expanded agricultural activities shall not have a significant effect on other wetlands values identified in §
237-1 of this chapter.
ALTERTo change the condition of areas within jurisdiction of the Conservation Commission. Activities presumed to alter these areas, include, but are not limited to, the following:
A. Removal, excavation or dredging if soil, sand, gravel or aggregate materials of any kind;
B. Changing of preexisting drainage characteristics, flushing characteristics, salinity distribution, sedimentation patterns, flow patterns, or flood retention characteristics;
C. Drainage or other disturbance of water level or water table;
D. Dumping, discharging, or filling with any material;
E. Placing of fill or brush or removal of material;
F. Erection of buildings, or structures of any kind; installation of piles except in accordance with pier maintenance regulations of the Commission;
G. Destruction of plant life including the cutting of trees; application of pesticides or herbicides except in accordance with agricultural exemptions set forth in §
237-3;
H. Changing water temperature, biochemical oxygen demand, or other physical or chemical characteristics of water;
I. Any activities, changes or work which pollute in any way any body of water or groundwater;
J. Any activities that change the aesthetics of a resource area in a significant manner and for more than a temporary period.
AQUACULTUREThe growing, raising, breeding, storing, or producing of specified aquatic or marine organisms at specified locations for commercial, municipal, or scientific purposes as approved by appropriate agencies. Organisms in aquacultural use include, but are not limited to: shellfish, such as oysters, quahogs, clams, lobsters, mussels, scallops and crabs; finfish, such as trout, eel, herring, salmon, smelt and bass; amphibians, such as frogs; reptiles, such as turtles; seaweeds, such as Irish moss and dulse; edible freshwater plants, such as watercress; and plankton grown as a food source for other organisms. Activities in or within 100 feet of a resource area shall not have a significant effect on existing permitted aquaculture. Notwithstanding this definition, new or expanded aquacultural activities shall not have a significant effect on other wetlands values set forth in §
237-1 of this chapter.
COASTAL BANKThe first significant break in slope beyond the one-hundred-year storm elevation on a seaward face or elevated landform, other than a coastal dune, which lies at the landward edge of a coastal beach, land subject to tidal action, or other coastal wetland. The slope of the bank must be greater than an 18% and serve to contain storm flowage, rather than being inundated by it, or function as a sediment source. A coastal bank may serve one of two functions:
A. It may serve as a vertical buffer because of its height and stability which protects upland areas from storm damage and flooding. Activities shall not increase erosion of a coastal blank, either from above (by stormwater runoff, brushcutting or other means) or from below (by tidal action, wind and waves). Any project on such a coastal bank shall have no adverse impact on the stability of the coastal bank.
B. Coastal banks composed of unconsolidated sediment and exposed to vigorous wave action serve as a source of sediment for dunes, beaches, barrier beaches and other coastal landforms. Naturally occurring wave action removes sediment from these banks to replenish coastal landforms. These landforms protect coastal wetlands and real property by reducing storm damage and flooding by dissipating storm wave energy. Any project on or within a coastal bank serving this function shall not have a significant effect on that bank's ability to serve as a sediment source.
CUMULATIVE EFFECTSActivities regulated under this chapter which may be individually minor, but when considered in relation to other past, present or future activities in a given area may be significant in the aggregate.
EROSION AND SEDIMENTATION CONTROLA. EROSION CONTROLThe ability of the wetland to buffer forces or processes which would threaten or cause to be threatened the stability of landforms and the soil and/or vegetation associated with wetlands and adjoining land areas, in particular, coastal and inland banks. Erosion can be caused by a wearing away of the surface soil or by undermining the interior portion of the landform. Activities in or within 100 feet of resource areas shall not have a significant effect on natural erosion processes.
B. SEDIMENTATION CONTROLThe ability of wetlands to settle out sediments and other waterborne material by reducing water flow by passing it through vegetation or by diffusing flow and reducing velocity. Activities in or within 100 feet of resource areas shall not accelerate or impede the rate of natural sedimentation significantly.
FLOOD CONTROLThe ability of wetlands to absorb, store and slowly release floodwaters to minimize peak flood levels. Flooding can be caused by precipitation or a rising water table. Activities within 100 feet of resource areas shall not alter the flood control value of wetlands significantly.
GROUNDWATERAll subsurface water contained in natural geologic formations or artificial fill, including soil water in the zone of aeration. Activities in or within 100 feet of resource areas shall not significantly alter the existing quality or elevation of naturally occurring groundwater.
HISTORICAL VALUESThe importance of wetlands and adjoining land areas as sites often used for prehistoric and historic occupation, subsistence, industry, trade, agriculture, burial and other cultural purposes. Resource areas which are known to contain sites of historic or archaeological resources (as by being listed of the State Register of Historic Places, the Inventory of Historic and Archaeological Assets of the Commonwealth, and/or the Barnstable Historical Commission's Historic Properties Inventory) are deemed to have historic value. Activities in or within 100 feet of resource areas shall not have a significant effect on historical values.
PERSONAny individual, group of individuals, associations, partnership, corporation, company, business organization, trust, estate, the commonwealth or political subdivision thereof to the extent subject to Town ordinances, administrative agency, public or quasi-public corporation or body, the Town of Barnstable, and any other legal entity, its legal representatives, agents, or assigns.
PRIVATE WATER SUPPLYAny source or volume of surface or ground water demonstrated to be in private use or shown to have potential for private use, including ground or surface water in the zone of contribution around a private well. Activities in or within 100 feet of a resource area shall not have a significant effect on the quality of a private water supply.
PUBLIC WATER SUPPLYAny source or volume of surface or ground water demonstrated to be in public use or approved for water supply pursuant to MGL c. 111, §
160 by the Department of Environmental Quality Engineering Division of Water Supply, or demonstrated to have a potential for public use, in addition to all surface and ground water in zones of contribution. Activities within 100 feet of resource areas shall not have a significant effect on the quality of a public water supply.
RECREATIONAny leisure activity or sport taking place in, on, or within 100 feet of a resource area which is dependent on the resource area and its values directly or indirectly for its conduct and enjoyment. Recreational activities include, but are not limited to, the following: noncommercial fishing and shellfishing, hunting, boating, swimming, walking, painting, birdwatching and aesthetic enjoyment. Structures and activities in or within 100 feet of a resource area shall not have a significant effect on public recreational values. Notwithstanding this definition, new or expanded recreational activities shall not have a significant effect on other wetlands values identified in §
237-1 of this chapter.
STORM DAMAGE PREVENTIONThe ability of wetland soils, vegetation and physiography to prevent damage caused by water from storms, including but not limited to: erosion and sedimentation; damage to vegetation, property or buildings; or damage caused by flooding, waterborne debris or waterborne ice. Activities in or within 100 feet of a resource area shall not have a significant effect on storm damage protection.
SURFACE WATER BODYAny area where water or ice stands or flows over the surface of the ground for at least five months of any calendar year except in times of severe, extended drought as defined in appropriate section of
310 CMR. Drainage ditches, exclusive of fish runs and intermittent streams, and impoundment areas which hold or pass water only during or for short periods following storms and which, owing to their relationship to groundwater, do not support wetland vegetation, are excluded from this definition.
TRUSTLANDSLands impressed with public trust rights protected by the commonwealth, including great ponds; and tidelands, being present and former submerged lands and tidal flats lying between the natural high-water mark and the state limit of seaward jurisdiction. Tidelands including both flowed and filled tidelands, and privately owned and publicly owned tidelands.
UNVEGETATED WETLAND RESOURCE AREASCoastal areas, such as flats and unvegetated intertidal areas; coastal and freshwater beaches, dunes and banks; and land subject to flooding. Also, inland areas subject to flooding which do not support wetland vegetation, but which store at least 1/4 acre feet of water to an average depth of six inches at least once a year, and land areas two feet or less vertically above the high-water mark of any lake or pond defined by
310 CMR. Does not include swimming pools, artificially lined ponds or pools, wastewater lagoons or stormwater runoff basins, the construction of which may be regulated, but do not themselves constitute regulated areas.
VEGETATED WETLANDSAny area of at least 500 square feet where surface or ground water, or ice, at or near the surface of the ground support a plant community dominated (at least 50%) by wetland species.
WETLANDS REPLICATIONThe creation of wetland, surface water body or other resource area to compensate for the filling or other loss or displacement of all or part of an existing wetland, surface water body or other resource area.
WILDLIFE HABITATResource areas that provide breeding and nesting habitats, shelter, food and water to all plant and animal species dependent on wetlands for any portion of their life cycles. Includes resource areas identified as containing rare, threatened or endangered species as listed by the Massachusetts Natural Heritage Program. Structures and activities in or within 100 feet of any resource area shall not have a significant effect on wildlife habitat.
ZONE OF CONTRIBUTIONThe segment of an aquifer that contributes significant quantities of ground or surface water to a water supply well.