The following are the values under the Southwick
Wetlands Bylaw:
A. Protection of public and private water supply.
B. Protection of groundwater.
D. Erosion and sedimentation control.
F. Prevention of water pollution.
H. Protection of wildlife habitat.
The definitions applicable to the Southwick
Wetlands Bylaw shall be the same as set forth in 310 CMR 10.00 et
seq. except for the following modifications to those definitions and
additional definitions:
ALTER
To change the condition of any area subject to jurisdiction
under the bylaw. Examples of alterations include, but are not limited
to, the following:
A.
Removal, excavation or dredging of soil, sand,
gravel or aggregate materials of any kind;
B.
Changing of pre-existing 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
which may degrade water quality;
E.
Placing of fill, or removal of material, which
would alter elevations;
F.
Driving of piles, erection or repair of buildings,
or structures of any kind;
G.
Placing of obstructions or objects in water;
H.
Destruction of plant life, including cutting
of trees;
I.
Changing water temperature, biochemical oxygen
demand or other physical, chemical or biological characteristics of
surface and groundwater;
J.
Excavation for the purpose of percolation or
deep hole testing or the crossing of a resource area with heavy equipment
for this purpose; or
K.
Any activities, changes or work which may cause
or tend to contribute to pollution of surface or groundwater.
BUFFER ZONE
An area of land extending 100 feet horizontally outward from
the boundary of any resource area (areas subject to protection under
the bylaw) described in SWR 10.02 of the bylaw.
EPHEMERAL POND/VERNAL POOL
An isolated depression or closed basin which temporarily
confines water during periods of high water table or high input from
spring runoff, snowmelt or heavy precipitation, and is used by obligate
amphibian species for breeding purposes.
ISOLATED WETLAND
An area of at least 500 square feet where groundwater, flowing
or standing surface water supports a vegetative community composed
of at least 50% wetland plant species as included or identified in
generally accepted scientific technical publications.
ISOLATED POND
Any open body of fresh water, either naturally occurring
or man-made, with a surface area observed or recorded within the last
10 years of at least 5,000 square feet and which is never without
standing water due to natural causes, except during periods of extended
drought. For the purposes of this definition, "extended drought" shall
mean any period of four or more months during which the average rainfall
for each month is 50% or less of the ten-year average for that same
month. Basins or lagoons which are part of waste-water treatment plants
shall not be considered ponds, nor shall swimming pools or other impervious
man-made retention basins.
PERENNIAL STREAM
A watercourse that flows all year during non-drought conditions,
or flows at least 361 consecutive days during a normal non-drought
year.
POND
Any body of water, regardless of size, that is hydrologically
connected to a brook or stream (intermittent or continuous), or wetland.
PRACTICABLE ALTERNATIVE
A measure that is available and capable of being done after
taking into consideration cost, existing technology and logistics
in light of overall project purposes.
RIPARIAN ZONE
An area of land extending 200 feet horizontally outward from
the Mean Annual High Water Line of a perennial stream.
STREAM
Any body of running water moving in a channel in the ground,
including intermittent streams and headwaters of streams above or
below the point where there are wetlands adjoining them.