Terms defined.
ABANDONED or ABANDONMENT - CA
To cease or discontinue a use or activity without intent
to resume, but excluding temporary or short-term interruptions to
a use or activity during periods of remodeling, maintaining or otherwise
improving or rearranging a facility, or during normal periods of vacation
or seasonal closure.
ABATEMENT
The act of putting an end to a land alteration or development
activity or reducing the degree or intensity of the alteration or
activity.
ACCESSORY STRUCTURE
A use or structure on the same lot with, and of a nature
customarily incidental and subordinate to, the principal use or structure
and is not attached by any common wall or by a common roof to the
main structure.
ADDITION
Construction that increases the size of a structure.
ADMINISTRATIVE VARIANCE - CA
An alternative to the standard Critical Area buffer variance
procedures available only if a development project meets specific
criteria.
AFFORESTATION - CA
The establishment of a tree crop on an area from which it
has always or very long been absent, or the planting of open areas
which are not presently in forest cover.
AGRICULTURAL EASEMENT
A nonpossessory interest in land which restricts the conversion
of use of the land, preventing nonagricultural uses.
AGRICULTURE
The use of land for the purposes of farming, dairying, pasturing,
agriculture, horticulture, viticulture, silvaculture, floriculture,
fish culture, and animal and poultry husbandry. The processing, packaging
or manufacture of agricultural products is not included.
ANADROMOUS FISH
Fish that travel upstream (from their primary habitat in
the ocean) to freshwater in order to spawn.
ANADROMOUS FISH PROPAGATION WATERS
Those streams that are tributary to the Chesapeake Bay and
Atlantic Coastal Bays in which the spawning of anadromous species
of fish (e.g., rockfish, striped bass, yellow perch, white perch,
shad, and river herring) occurs or has occurred. The streams are identified
by the Department of Natural Resources.
AQUACULTURE
(1)
Farming or culturing of finfish, shellfish, other aquatic plants
or animals or both, in lakes, streams, inlets, estuaries, and other
natural or artificial water bodies or impoundments;
(2)
Activities include hatching, cultivating, planting, feeding,
raising, and harvesting of aquatic plants and animals and the maintenance
and construction of necessary equipment, buildings, and growing areas;
and
(3)
Cultivation methods include, but are not limited to, seed or
larvae development and grow-out facilities, fish ponds, shellfish
rafts, rack and longlines, seaweed floats and the culture of clams
and oysters on tidelands and subtidal areas.
(4)
For the purpose of this definition, related activities such
as wholesale and retail sales, processing and product storage facilities
are not considered aquacultural practices.
BED-AND-BREAKFAST HOME - CA
A dwelling occupied by the owner or operator that contains
not more than 10 guest rooms, excluding resident quarters, offering
overnight lodging accommodations and breakfast for transient guests
only.
BEST MANAGEMENT PRACTICES (BMPs)
Conservation practices or systems of practices and management
measures that control soil loss and reduce water quality degradation
caused by nutrients, animal waste, toxics and sediment. Agricultural
BMPs include, but are not limited to, strip cropping, terracing, contour
stripping, grass waterways, animal waste structures, ponds, minimal
tillage, grass and naturally vegetated filter strips, and proper nutrient
application measures.
BONA FIDE INTRAFAMILY TRANSFER
A transfer to a member of the owner's immediate family of
a portion of the owner's property for the purpose of establishing
a residence for that family member.
BUFFER - CA
An area that based on conditions at the time of development,
is immediately landward from mean high water of tidal waterways, the
edge of each bank of a tributary stream, or the landward edge of a
tidal wetland; and the area exists in, or is established in, natural
vegetation to protect a stream, tidal wetland, tidal waters or terrestrial
environments from human disturbance. The buffer includes an area of
at least 100 feet even if that area was previously disturbed by human
activity or is currently developed and also includes any expansion
for contiguous sensitive areas, such as a steep slope, hydric soil,
highly erodible soil, nontidal wetland, or a Nontidal Wetland of Special
State Concern as defined in COMAR 26.23.01.01.
BUFFER EXEMPTION AREA (BEA) - CA
Those areas of the County located within the tidewater buffer
that are largely or totally developed such that the pattern of residential,
industrial, commercial or recreational development present as of December
1, 1985, prevents the tidewater buffer from fulfilling its intended
purposes. Buffer exemption areas may be exempted from certain requirements
of the tidewater buffer, as may be determined by the County. The term
"modified buffer area" has replaced the term, "buffer exemption area."
BUFFER MANAGEMENT PLAN - CA
A narrative, graphic description, or plan of the buffer that
is necessary when an applicant proposes a development activity that
will affect a portion of the buffer, affect buffer vegetation, or
require the establishment of a portion of the buffer in vegetation.
"Buffer management plan" includes a major buffer management plan,
a minor buffer management plan, or a simplified buffer management
plan as described in this chapter.
BUFFERYARD
An area at least 25 feet wide, located between development
activity and tidal waters, tidal wetlands, or a tributary stream,
planted with vegetation consisting of native canopy trees, understory
trees, shrubs, and perennial herbaceous plants that is used in modified
buffer areas to provide water quality and habitat benefits. This area
is to be managed and maintained in a manner that optimizes these benefits.
CANOPY TREE
A tree that when mature commonly reaches a height of at least
35 feet.
CLEARCUTTING
The removal of the entire stand of trees in one cutting with
tree reproduction obtained by natural seeding from adjacent stands
or from trees that were cut from advanced regeneration or stump sprouts
or from planting of seeds or seedlings by man.
CLUSTER DEVELOPMENT - CA
A predominantly residential development in which dwelling
units are concentrated in a selected area or selected areas of the
development tract so as to provide natural habitat or other open space
uses on the remainder of the tract.
COLONIAL NESTING WATER BIRDS
Herons, egrets, terns, and glossy ibis. For the purposes
of nesting, these birds congregate (that is "colonize") in relatively
few areas, at which time, the regional populations of these species
are highly susceptible to local disturbances.
COMAR
The Code of Maryland Regulations, as from time to time amended,
including any successor provisions.
COMMERCIAL HARVESTING
A commercial operation that would alter the existing composition
or profile, or both, of a forest, including all commercial cutting
operations done by companies and private individuals for economic
gain.
COMMUNITY PIERS
Boat docking facilities associated with subdivisions or similar
residential areas, and with condominium, apartment and other multiple-family
dwelling units. Private piers are excluded from this definition.
COMPREHENSIVE PLAN
The Dorchester County Comprehensive Plan adopted in 1996
by the County Council, and any amendments thereto.
CONFORMING
A parcel or lot that meets all Critical Area requirements.
Conforming does not include a parcel or lot for which a Critical Area
variance is sought or has been issued; or that is located in the resource
conservation area and is less than 20 acres.
CONSERVATION EASEMENT
A nonpossessory interest in land which restricts the manner
in which the land may be developed in an effort to reserve natural
resources for future use.
CONSOLIDATION
A combination of any legal parcel of land or recorded legally
buildable lot into fewer lots or parcels than originally existed.
Consolidation includes a lot line abandonment, a boundary line adjustment,
a replatting request, and a lot line adjustment.
COVER CROP
The establishment of a vegetative cover to protect soils
from erosion and to restrict pollutants from entering the waterways.
Cover crops can be dense, planted crops of grasses or legumes, or
crop residues such as corn, wheat or soybean stubble which maximize
infiltration and prevent runoff from reaching erosive velocities.
CRITICAL AREA - CA
All lands and waters defined in § 8-1807 of the
Natural Resources Article, Annotated Code of Maryland. They include:
(1)
All waters of and lands under the Chesapeake Bay and Atlantic
Coastal Bays and their tributaries to the head of tide as indicated
on state wetland maps:
(2)
All state and private wetlands designated under Title 16 of
the Environment Article, Annotated Code of Maryland;
(3)
All land and water areas within 1,000 feet beyond the landward
boundaries of state or private wetlands and the heads of tides designated
under Title 16 of the Environment Article, Annotated Code of Maryland;
and
(4)
Modification to these areas through inclusions or exclusions
proposed by local jurisdictions and approved by the Critical Area
Commission as specified in § 8-1807 of the Natural Resources
Article, Annotated Code of Maryland.
CRITICAL AREA COMMISSION
The Critical Area Commission for the Chesapeake and Atlantic
Coastal Bays and is also referred to as "CAC."
DENSITY - CA
The number of dwelling units per acre of gross measurable
and defined area of a development tract, unless otherwise specified.
DEPARTMENT
The Dorchester County Department of Planning and Zoning (DP&Z)
or the Dorchester County Department of Public Works (DPW).
DESIGNATED GROWTH AREAS
The incorporated municipalities of Brookview, Cambridge,
Church Creek, East New Market, Eldorado, Galestown, Hurlock, Secretary,
and Vienna, any area of the CA Critical Area Protection District that
was mapped IDA or LDA in the initial Dorchester County Critical Area
Program approved by the Critical Area Commission, and major growth
centers, community centers and villages as designated in the County
Comprehensive Plan, as amended. The designated growth areas in the
Comprehensive Plan are as follows:
(1)
Major growth center: areas mapped as "County Development District"
and "Planned Growth Area" east and west of Cambridge along the Choptank
River (map 2-3), areas west of East New Market (map 2-4), areas east
of Hurlock (map 2-4);
(2)
Community centers: areas within corporate boundaries and adjacent
areas mapped as "Municipal Growth Area" and areas mapped as "Joint
Planning Areas" on maps 2-3 through 2-7 to include Woolford and Madison,
West Vienna, Green Point (near Secretary), and the Depot area outside
East New Market;
(3)
Villages: incorporated towns without public water and sewer,
such as Eldorado, Brookview and Galestown as well as other smaller
hamlets and crossroad communities in agricultural or in natural resource
areas.
DEVELOPED WOODLAND - CA
An area containing mainly trees and natural vegetation but
which also includes residential, commercial or industrial or recreational
development and structures and uses and covering a land area of one
acre or more.
DEVELOPED WOODLANDS
An area of trees or of trees and natural vegetation that
is interspersed with residential, commercial, industrial or recreational
development.
DEVELOPER
A person who undertakes development activity as defined in
this chapter; or a person who undertakes development activity as defined
in the criteria of the Critical Area Commission.
DEVELOPMENT ACTIVITY
Human activity that results in disturbance to land, natural
vegetation, or a structure. "Development activity" includes the construction
or substantial alteration of residential, commercial, industrial,
institutional or transportation facilities or structures. Agricultural
structures and water-dependent structures and uses are not considered
to be a development activity.
DEVELOPMENT AREA - CA
A system of land classification within the Critical Area
which recognizes existing land uses and serves as a basis for future
growth limitations and other controls. Development areas include intensely
developed areas, limited development areas and resource conservation
areas.
DEVELOPMENT ENVELOPE - CA
The developed portion of a parcel or tract of land that encompasses
all lots, required buffers, lot coverage, utilities, stormwater management
measures, on-site sewage disposal measures, any areas subject to human
use as active recreation areas and any additional acreage needed to
meet the development requirements of the Dorchester County Critical
Area Program. The development envelope need not include the tidewater
buffer if it is at least 300 feet deep as measured from tidal waters,
tidal wetlands or tributary streams.
DIRECTOR
The Director of the appropriate agency within County government
that administers primary responsibility for the respective land use
or resource protection or governmental service impacted by the Critical
Area Program.
DISTURBANCE
An alteration or change to the land. It includes any amount
of clearing, grading, or construction activity. "Disturbance" does
not include gardening or maintenance of an existing grass lawn.
DOCUMENTED BREEDING BIRD AREA - CA
Forested areas where the occurrence of interior dwelling
birds, during the breeding season, has been demonstrated as a result
of on-site surveys using standard biological survey techniques.
DWELLING UNIT - CA
In the Critical Area, "dwelling unit" means a single unit
providing complete, independent living facilities for at least one
person, including permanent provisions for sanitation, cooking, eating,
sleeping, and other activities routinely associated with daily life.
"Dwelling unit" includes living quarters for a domestic or other employee
or tenant, an in-law or accessory apartment, a guest house, or a caretaker
residence. A dwelling unit shall be located in a structure containing
a minimum gross floor area of 600 square feet.
ECOSYSTEM
A more or less self-contained biological community together
with the physical environment in which the community's organisms occur.
ENDANGERED SPECIES
Any species of fish, wildlife, or plants that have been designated
as endangered by regulation by the Secretary of the Department of
Natural Resources. Designation occurs when the continued existence
of these species as viable components of the state's resources are
determined to be in jeopardy. This includes any species determined
to be an "endangered" species pursuant to the Federal Endangered Species
Act, 16 U.S.C. § 1531 et seq., as amended.
ESSENTIAL SERVICES
Water lines, sewer lines, natural gas lines, propane gas,
electric lines or poles, telephone lines and poles, underground conduits,
including such incidental equipment which is located on poles or in
underground conduits or vaults. Essential service structures include
tandem poles and tower structures. Essential service buildings shall
include administration, storage, construction, or maintenance buildings
or yards, sewage treatment or disposal plants, or water treatment
plant developed in accordance with all lot area, setback, yard and
height regulations as required for the principal building in the zoning
district.
ESTABLISHMENT
The planting or regeneration of native vegetation throughout
the buffer.
EXCESS STORMWATER RUNOFF
All increases in stormwater resulting from:
(1)
An increase in the lot coverage of the site, including all additions
to buildings, roads, and parking lots;
(2)
Changes in permeability caused by compaction during construction
or modifications in contours, including the filling or drainage of
small depression areas;
(3)
Alteration of drainageways or regrading of slopes;
(4)
Destruction of forest; or
(5)
Installation of collection systems to intercept street flows
or to replace swales or other drainageways.
FINANCIAL ASSURANCE
A performance bond, letter of credit, cash deposit, insurance
policy, or other instrument of security acceptable to the County.
FISHERIES ACTIVITIES - CA
Commercial water-dependent fisheries facilities, including
structures for the parking, processing, canning, or freezing of finfish,
crustaceans, mollusks, and amphibians and reptiles, and also including
related activities such as wholesale and retail sales product storage
facilities, crab shedding, off-loading docks, shellfish culture operations,
and shore-based facilities necessary for aquacultural operations.
FOREST - CA
A biological community dominated by trees and other woody
plants covering a land area of 10,000 square feet or greater. "Forest"
includes areas that have at least 100 trees per acre with at least
50% of those trees having two-inch or greater diameter at 4.5 feet
above the ground and forest areas that have been cut, but not cleared.
"Forest" does not include orchards.
FOREST INTERIOR DWELLING BIRDS
Species of birds which require relatively large forested
tracts in order to breed successfully (for example, various species
of flycatchers, warblers, vireos, and woodpeckers).
FOREST MANAGEMENT
The protection, manipulation, and utilization of the forest
to provide multiple benefits, such as timber harvesting, water transpiration,
wildlife habitat, etc.
FOREST PRACTICE
The alteration of the forest either through tree removal
or replacement in order to improve the timber, wildlife, recreational,
or water quality values.
FULLY ESTABLISHED
The buffer contains as much diverse, native vegetation as
necessary to support a firm and stable riparian habitat capable of
self-sustaining growth and regeneration.
GRANDFATHERING - CA
Provisions which allow certain preexisting uses to continue
even though they may be inconsistent with a new law.
GROWTH ALLOCATION
(1)
An area of land calculated as 5% of the total resource conservation
area (excluding tidal wetlands and federally owned land), that the
County may convert to more intense management areas to accommodate
land development; and/or
(2)
An act of the County Council, such as approving the GA Growth
Allocation Floating District, which provides for conversion of a property
or properties located in a resource conservation area (RCA) and/or
the limited development area (LDA) in the CA-1 Critical Area District
that results in an increase in the permitted density/use. Such action
is dependent upon the approval of the Critical Area Commission.
GROWTH ALLOCATION ENVELOPE
All of the proposed components of a growth allocation project
that are necessary to serve the proposed development, including an
individually owned lot, lot coverage, a road, a utility, a stormwater
management measure, an on-site sewage disposal measure, an active
recreation area, and additional acreage needed to meet the development
requirements of the Critical Area criteria.
HABITAT PROTECTION AREA (HPA) - CA
Buffer, nontidal wetlands, threatened and endangered species,
plant and wildlife habitats, anadromous fish spawning propagation
waters and species in need of conservation, i.e., colonial nesting
waters, historic waterfowl staging and concentration areas, habitats
of local significance, as defined in the County Critical Area Program.
HABITAT PROTECTION PLAN
A plan that provides for the protection and conservation
of the species and habitats identified as habitat protection areas
in the Critical Area. The plan shall be specific to the site or area
where the species or its habitat is located and shall address all
aspects of a proposed development activity that may affect the continued
presence of the species. These include, but are not limited to, cutting,
clearing, alterations of natural hydrology, and increases in lot coverage.
In developing the plan, an applicant shall coordinate with the Department
of Natural Resources to ensure that the plan is adequate to provide
for long-term conservation and can be effectively implemented on the
specific site.
HAZARDOUS TREE
(1)
A tree with a structural defect, such as a crack, canker, weak
branch union, decay, dead wood, root damage, or root disease, that
decreases the structural integrity of the tree and which, because
of its location, is likely to fall and cause personal injury or property
damage, including acceleration of soil erosion; or based on its location
in the landscape, a healthy tree that, with continued normal growth,
will damage an existing permanent structure or significantly increase
the likelihood of soil erosion.
(2)
"Hazardous tree" does not include a tree for which the likelihood
of personal injury, property damage, or soil erosion can reasonably
be eliminated or significantly diminished with routine and proper
arboricultural practices, such as regular watering, application of
fertilizer or mulch, and pruning; or by relocation of property that
is likely to be damaged.
HIGHLY ERODIBLE SOILS
Those soils with a slope greater than 15%; or those soils
with a K value greater than .35 and with slopes greater than 5%.
HISTORIC WATERFOWL STAGING AND CONCENTRATION AREA
An area of open water and adjacent marshes where waterfowl
gather during migration and throughout the winter season. These areas
are historic in the sense that their location is common knowledge
and because these areas have been used regularly during recent times.
HOME IMPROVEMENT
The addition to or alteration, conversion, improvement, modernization,
remodeling, repair, or replacement of a building or part of a building
that is used or designed to be used as a residence or dwelling place
or a structure adjacent to that building; or an improvement to land
adjacent to the building. "Home improvement" includes construction,
improvement, or replacement, on land adjacent to the building, of
a driveway, fallout shelter, fence, garage, landscaping, deck, pier,
porch, or swimming pool; a shore erosion control project, as defined
under § 8-1001 of the Natural Resources Article, for a residential
property; connection, installation, or replacement, in the building
or structure, of a dishwasher, disposal, or refrigerator with an icemaker
to existing exposed household plumbing lines; installation in the
building or structure, of an awning, fire alarm, or storm window;
and work done on individual condominium units.
HOTEL/MOTEL - CA
A facility providing transient lodging accommodations on
a daily rate to the general public and providing additional services
such as restaurants, meeting rooms and recreational facilities. A
hotel/motel does not include a boardinghouse, bed-and-breakfast, inn
or recreational trailer park.
HYDRIC SOILS
Soils that are wet frequently enough to periodically produce
anaerobic conditions, thereby influencing the species composition
of growth, or both, of plants on those soils. A list of hydric soils
is maintained by the Natural Resources Conservation Service and at
the Dorchester County Department of Planning and Zoning.
HYDROPHYTIC VEGETATION
Those plants cited in "Vascular Plant Species Occurring in
Maryland Wetlands" (Dawson, F. et al., 1985) which are described as
growing in water or on a substrate that is at least periodically deficient
in oxygen as a result of excessive water content (plants typically
found in water habitats).
IMMEDIATE FAMILY
A father, mother, son, daughter, grandfather, grandmother,
grandson, granddaughter, or sibling.
IN-KIND REPLACEMENT
The removal of a structure and the construction of another
structure that is smaller than or identical to the original structure
in use, footprint area, width, and length.
INTENSELY DEVELOPED AREA - CA
An area of at least 20 acres or the entire upland portion
of the Critical Area within a municipal corporation, whichever is
less, where residential, commercial, institutional, or industrial
developed land uses predominate and a relatively small amount of natural
habitat occurs. These areas include:
(1)
An area with a housing density of at least four dwelling units
per acre;
(2)
An area with public water and sewer systems with a housing density
of more than three dwelling units per acre.
INTRAFAMILY TRANSFER
A transfer of a portion of the owner's property to a member
of the owner's immediate family, as defined herein, for the purpose
of establishing a residence for that family member.
INVASIVE SPECIES
A type of plant that is non-native to the ecosystem under
consideration and whose introduction causes, or is likely to cause,
economic or environmental harm or harm to human health.
K VALUE
The soil erodibility factor in the Universal Soil Loss Equation.
It is a quantitative value that is experimentally determined.
LAND CLEARING
Any activity that removes the vegetative ground cover.
LAND-BASED AQUACULTURE
The raising of fish or shellfish in any natural or man-made,
enclosed or impounded, water body.
LANDFORMS
A feature of the earth's surface created by natural causes.
LANDWARD EDGE
The limit of a site feature that is farthest away from a
tidal water, tidal wetland, or tributary stream.
LARGE SHRUB
A shrub that, when mature, reaches a height of at least six
feet.
LEGALLY DEVELOPED
All physical improvements to a property that existed before
Critical Area Commission approval of a local program, or were properly
permitted in accordance with the provisions of the local program in
effect at the time of construction.
LIMIT OF DISTURBANCE
The area of a development or redevelopment activity that
includes temporary disturbance and permanent disturbance.
LIMITED DEVELOPMENT AREA - CA
An area with a housing density ranging from one dwelling
unit per five acres up to four dwelling units per acre; with a public
water or sewer system; that is not dominated by agricultural land,
wetland, forests, barren land, surface water, or open space nor a
public water or public sewerage system; or that is less than 20 acres
and otherwise qualifies as an intensely developed area under the definition
in this section.
LIVING SHORELINE
A suite of stabilization and erosion control measures that
preserve the natural shoreline and are designed to minimize shoreline
erosion, maintain coastal process, and provide aquatic habitat. Measures
must include marsh plantings and may include the use of sills, sand
containment structures, breakwaters, or other natural components.
LOCAL SIGNIFICANCE
Development of a minor scale, which causes environmental
or economic consequences that are largely confined to the immediate
area of the parcel of land on which it is located; does not substantially
affect the Critical Area Program of the County; and is not considered
to be major development as defined in this section.
LOT COVERAGE
The percentage of a total lot or parcel that is occupied
by a structure, accessory structure, parking area, driveway, walkway,
or roadway; or covered with gravel, stone, shell, impermeable decking,
pavers, permeable pavement, or any other man-made material. "Lot coverage"
includes the ground area covered, or occupied by, a stairway, impermeable
deck, or decking material that is not attached to a dwelling. "Lot
coverage" does not include a fence or wall that is less than one foot
in width that has not been constructed with a footer; a walkway in
the buffer or expanded buffer, including a stairway, that provides
direct access to a community or private pier; a wood mulch pathway;
or a deck that is attached to a dwelling and with gaps to allow water
to pass freely.
MAJOR DEVELOPMENT
Development of a scale that may cause state-wide, regional,
or interjurisdictional, environmental or economic effects in the Critical
Area, or which may cause substantial impacts on the Critical Area
Program of a local jurisdiction. This development includes, but is
not limited to, airports, power plants, wastewater treatment plants,
highways, regional utility transmission facilities, prisons, hospitals,
public housing projects, public beaches, and intensely developed park
and recreation facilities.
MARINA
Any facility for the mooring, berthing, storing, or securing
of watercraft, but not including community piers and other noncommercial
boat docking and storage facilities.
MITIGATION
An action taken to compensate for adverse impacts to the
environment resulting from development, development activity, or a
change in land use or intensity.
MODIFIED BUFFER AREA (MBA)
An area officially mapped by the County and approved by the
Critical Area Commission as a modified buffer area, where it has been
sufficiently demonstrated that the existing pattern of residential,
industrial, commercial, institutional, or recreational development
prevents the buffer from fulfilling its water quality and habitat
functions, and where development in accordance with specific MBA provisions
can be permitted in the buffer without a variance. MBAs have formerly
been referred to as "buffer exempt areas."
MUNICIPAL INFILL GROWTH ALLOCATION
The infill growth allocation allotment allocated to the municipality
by the County Council that is used for projects within the municipal
boundary as of original adoption of its Critical Area Program.
NATIVE PLANT
A species that is indigenous to the physiographic area in
Maryland where the planting is proposed.
NATURAL FEATURES
Components and processes present in or produced by nature,
including, but not limited to, soil types, geology, slopes, vegetation,
surface water, drainage patterns, aquifers, recharge areas, climate,
floodplains, aquatic life, and wildlife.
NATURAL FOREST VEGETATION
Vegetation consisting of canopy trees, understory trees,
shrubs, and herbaceous plants that are typically found in riparian
areas in the State of Maryland. Areas of natural forest vegetation
planted to meet the mitigation requirements in this chapter shall
resemble the structure and species composition of natural forests.
NATURAL HERITAGE AREA
Any communities of plants or animals which are considered
to be among the best statewide examples of their kind and are designated
by regulation by the Secretary of the Department of Natural Resources.
NATURAL PARKS
Areas of natural habitat that provide opportunities for those
recreational activities that are compatible with the maintenance of
natural conditions.
NATURAL REGENERATION
The natural establishment of trees and other vegetation with
at least 400 free-to-grow seedlings per acre, which are capable of
reaching a height of at least 20 feet at maturity.
NATURAL VEGETATION
Those plant communities that develop in the absence of human
activities.
NATURE-DOMINATED
A condition where landforms or biological communities, or
both, have developed by natural processes in the absence of human
activities.
NEW DEVELOPMENT
For purposes of implementing specific provisions of this
chapter, "new development" (as opposed to redevelopment) means a development
activity that takes place on a property with predevelopment imperviousness
(in IDA) or lot coverage (LDA and RCA) of less than 15% as of December
1, 1985.
NON-POINT SOURCE POLLUTION
Pollution generated by diffuse land use activities rather
than from an identifiable or discrete facility. It is conveyed to
waterways through natural processes, such as rainfall, storm runoff,
or groundwater seepage rather than by deliberate discharge. Non-point
source pollution is not generally corrected by end-of-pipe treatment,
but rather by changes in land management practices.
NONTIDAL WETLANDS
Those areas regulated under Subtitle 26 of the Environment
Article that are inundated or saturated by surface water or groundwater
at a frequency and duration sufficient to support, and that under
normal circumstances does support, a prevalence of vegetation typically
adapted for life in saturated soil conditions, commonly known as hydrophytic
vegetation. The determination of whether an area is a nontidal wetland
shall be made in accordance with the publication known as the "Federal
Manual for Identifying and Delineating Jurisdicational Wetlands,"
published in 1989 and as may be amended. Nontidal wetlands do not
include tidal wetlands regulated under Title 16 of the Environment
Article of the Annotated Code of Maryland.
NON-WATER-DEPENDENT PROJECT
A temporary or permanent structure that, by reason of its
intrinsic nature, use, or operation, does not require location in,
on, or over state or private wetlands.
[Added 8-3-2021 by Bill No. 2021-14; amended 3-1-2022 by Bill No. 2022-2]
(1)
"Non-water-dependent project" includes:
(a)
A dwelling unit on a pier;
(b)
A restaurant, a shop, an office, or any other commercial building
or use on a pier;
(c)
A temporary or permanent roof or covering on a pier; and
(d)
A pier used to support a non-water-dependent use.
(2)
"Non-water-dependent project" does not include:
(a)
A fuel pump or other fuel-dispensing equipment on a pier;
(b)
A sanitary sewage pump or other wastewater removal equipment
on a pier; or
(c)
An office on a pier for managing marina operations, including
monitoring vessel traffic, registering vessels, providing docking
services, and housing electrical or emergency equipment related to
marina operations.
OFFSETS
Structures or actions that compensate for undesirable impacts.
OVERBURDEN
The strata or material in its natural state, before its removal
by surface mining, overlying a mineral deposit, or in between mineral
deposits.
PALUSTRINE
All nontidal wetlands dominated by trees, shrubs, persistent
emergent plants, or emergent mosses or lichens and all such wetlands
that occur in tidal areas where the salinity due to ocean-derived
salts is below 1/2 part per 1,000 parts of water.
PERMANENT DISTURBANCE
A material, enduring change in the topography, landscape,
or structure that occurs as part of a development or redevelopment
activity.
(1)
"Permanent disturbance" includes:
(a)
Construction or installation of any material that will result
in lot coverage;
(c)
Grading or clearing (except where it meets the definition of
temporary disturbance); and
(d)
The installation of a septic system, in a forest or developed
woodland on a grandfathered lot, if clearing is required.
(2)
"Permanent disturbance" does not include installation of a septic
system on a grandfathered lot if located in existing grass or clearing
is not required.
PERSON
An individual, partnership, corporation, contractor, property
owner, or any other person or entity.
PHYSIOGRAPHIC FEATURES
The soils, topography, land slope and aspect, and local climate
that influence the form and species composition of plant communities.
PIER
Any pier, wharf, dock, walkway, bulkhead, breakwater, piles
or other similar structure. "Pier" does not include any structure
on pilings or stilts that was originally constructed beyond the landward
boundaries of state or private wetlands.
PLANT AND WILDLIFE HABITAT - CA
Plant communities and wildlife areas which have statewide
or local significance because of their uniqueness, rarity or uncertain
future. These areas include, but are not limited to, colonial water
bird nesting sites, waterfowl concentration areas, forests with breeding
populations of forest interior bird species, riparian forests and
designated natural heritage areas.
PLANT HABITAT
A community of plants commonly identifiable by the composition
of its vegetation and its physiographic characteristics.
PORT - CA
A facility or area established or designated by the state
or local jurisdictions for purposes of waterborne commerce.
PRINCIPAL STRUCTURE
The primary or predominant structure on any lot or parcel.
For residential parcels or lots, the principal structure is the primary
dwelling, excluding utilities and the septic system.
PROGRAM AMENDMENT
Any change or proposed change to an adopted program that
is not determined by the Chairman of the Critical Area Commission
to be a program refinement.
PROGRAM REFINEMENT
Any change or proposed change to an adopted program that
the Chairman of the Critical Area Commission determines will result
in a use of land or water in the Chesapeake Bay Critical Area or Atlantic
Coastal Bays Critical Area in a manner consistent with the adopted
program, or that will not significantly affect the use of land or
water in the Critical Area. Program refinement may include:
(1)
A change to an adopted program that results from state law;
(2)
A change to an adopted program that affects local processes
and procedures;
(3)
A change to a local ordinance or code that clarifies an existing
provision; and
(4)
A minor change to an element of an adopted program that is clearly
consistent with the provisions of State Critical Area Law and all
the criteria of the Critical Area Commission.
PROJECT APPROVALS
The approval of development, other than development by the
state or local government, in the Chesapeake Bay Critical Area by
the appropriate local approval authority. The term includes approval
of subdivision plats and site plans; inclusion of areas within floating
zones; issuance of variances, special exceptions, and conditional
use permits; and issuance of zoning permits. The term does not include
building permits.
PROPERTY OWNER
A person holding title to a property or two or more persons
holding title to a property under any form of joint ownership.
PUBLIC UTILITIES - CA
Uses or structures for the public purpose of power transmission
and distribution (but not power generation); fuel transmission and
distribution (but not manufacturing or storage); water treatment and
distribution; sewage collection and treatment; telephone service facilities
(but not utility truck terminal facilities); radio and television
facilities (not including broadcasting studios); and rail or highway
rights-of-way (not including stations or terminals).
RECLAMATION
The reasonable rehabilitation of disturbed land for useful
purposes, and the protection of the natural resources of adjacent
areas, including water bodies.
RECONFIGURATION
A change of the configuration of an existing lot or parcel
line of any legal parcel of land or recorded legally buildable lot.
"Reconfiguration" includes a lot line adjustment, a boundary line
adjustment, and a replatting request.
REDEVELOPMENT
The process of developing land which is or has been developed.
For purposes of implementing specific provisions of this chapter,
"redevelopment" (as opposed to new development) means a development
activity that takes place on property with predevelopment imperviousness
(in IDA) or lot coverage (in LDA and RCA) of 15% or greater.
REFORESTATION - CA
The establishment of a forest through artificial reproduction
or natural regeneration.
REMAINING LANDS
A notation on a subdivision plat denoting land area or areas
of the original tract or tracts that are residual and not part of
the proposed subdivision. Remaining lands may be developed, provided
that they meet requirements of the applicable zoning district or districts.
RENEWABLE RESOURCE
A resource that can renew or replace itself and, therefore,
with proper management, can be harvested indefinitely.
RESERVED LANDS
Notation on a subdivision plat or plats denoting a land area
or areas of the original tract or tracts that are assigned by the
subdivider to meet the minimum density requirements for subdivision
of land in the resource conservation area (RCA). Reserved lands are
not included in the area of the lots created in the subdivision, but
are assigned a reservation status by the developer in order to ensure
that there is a minimum of 20 acres in the RCA set aside from development
for each lot created in the RCA. Reserved lands are restricted from
further development; however, reserved lands may be utilized for agricultural,
aquacultural, forestry and resource conservation purposes, including
erection of buildings and structures related to these uses, provided
that such uses, buildings or structures comply with all other applicable
requirements of the Dorchester Zoning Ordinance and this chapter. Reserved lands shall be clearly shown
on the subdivision plat.
RESOURCE CONSERVATION AREA - CA
An area that is characterized by nature-dominated environments,
such as wetlands, surface water, forests, and open space; and resource-based
activities, such as agriculture, forestry, fisheries, or aquaculture.
Resource conservation areas include areas with a housing density of
less than one dwelling per five acres.
RESOURCE UTILIZATION ACTIVITIES
Any and all activities associated with the utilization of
natural resources, such as agriculture, forestry, surface mining,
aquaculture, and fisheries activities.
RESTORATION
The act of returning a site or area to an original state
or any action that reestablishes all or a portion of the ecological
structure and functions of a site or area.
RIPARIAN HABITAT - CA
A habitat that is strongly influenced by water and which
occurs adjacent to streams, shorelines, and wetlands.
ROAD - CA
A public thoroughfare under the jurisdiction of the state,
a County, a municipal corporation, or any other public body. "Road"
does not include a drive aisle or driveway.
SEASONALLY FLOODED WATER REGIME
A condition where surface water is present for extended periods,
especially early in the growing season, and when surface water is
absent, the water table is often near the land surface.
SELECTION
The removal of single, scattered, mature trees or other trees
from unevenly aged stands by frequent and periodic cutting operations.
SHORE EROSION PROTECTION WORKS
Those structures or measures constructed or installed to
prevent or minimize erosion of the shoreline in the Critical Area.
More specifically, the term refers to:
(1)
Nonstructural: creation of an intertidal marsh fringe channelward
of the existing bank by one of the following methods:
(a)
Vegetation: planting an existing shore with a wide band of vegetation;
(b)
Bank sloping/vegetation: sloping and planting a nonwooded bank
to manage tidal water contact, using structures to contain sloped
materials if necessary; and
(c)
Contained beach: filling along shore with sandy materials, grading,
and containing the new beach to eliminate tidal water contact with
the bank.
(2)
Structural erosion control:
(a)
Revetment: facing laid on a sloping shore to reduce wave energy
and contain shore materials;
(b)
Bulkhead: excluded due to adverse impacts to the near shore
marine environment, except in the following special cases:
[1]
Where erosion impact is severe and high bluffs and/or dense
woodland preclude land access, bulkheads can be installed by shallow
draft barge and pile driver; and
[2]
In narrow, man-made lagoons for activities that require frequent
interchange between boats and land.
SHORELINE
In the case where land abuts tidal waters, the boundary line
between state and private wetlands as defined herein, and in the case
where land abuts regularly flowing nontidal waters, the boundary line
between open water and wetlands or fastlands.
SMALL SHRUB
A shrub that, when mature, reaches a height no greater than
six feet.
SOIL CONSERVATION AND WATER QUALITY PLANS
Land-use plans for farms that show farmers how to make the
best possible use of their soil and water resources while protecting
and conserving those resources for the future. It is a document containing
a map and related plans that indicate:
(1)
How the landowner plans to treat a farm unit;
(2)
Which best management practices the landowner plans to install
to treat undesirable conditions; and
(3)
The schedule for applying those best management practices.
SPECIES IN NEED OF CONSERVATION
Those fish and wildlife whose continued existence as part
of the state's resources are in question and which may be designated
by regulation by the Secretary of Natural Resources as in need of
conservation pursuant to the requirements of Natural Resources Article
§§ 10-2A-06 and 4-2A-03, Annotated Code of Maryland.
SPECIES OF CONCERN - CA
Plant and wildlife species whose continuing existence is
in question and which warrant special attention. This category includes
endangered species, threatened species and species in need of conservation.
SPOIL PILE
The overburden and reject materials as piled or deposited
during surface mining.
STRUCTURE
Anything constructed or erected on or over land or water
that may or may not result in lot coverage.
SUBSTANTIAL ALTERATION
Any repair, reconstruction, or improvement of a principal
structure, where the proposed total footprint is at least 50% greater
than that of the existing principal structure.
SUPPLEMENTAL PLANTING PLAN
A description and landscape schedule that shows the proposed
species type, quantity, and size of plants to be located within a
buffer if natural regeneration does not meet the required stem density.
SURFACE MINING
The breaking of the surface soil in order to extract or remove
minerals in the Critical Area. Surface mining includes any activity
or process constituting all or part of a process for the extraction
or removal of minerals from their original location in the Critical
Area and the extraction of sand, gravel, rock, stone, earth or fill
from borrow pits for highway construction purposes or for other facilities.
For the purpose of this chapter, "surface mining" is also defined
as operations engaged in processing minerals at the site of extraction;
removal of overburden and mining of limited amounts of any mineral
when done for the purpose of prospecting and to the extent necessary
to determine the location, quantity or quality of any natural deposit;
and mining operations, if the affected land exceeds one acre or more
in area.
TEMPORARY DISTURBANCE
A short-term change in the landscape that occurs as part
of a development or redevelopment activity.
(1)
"Temporary disturbance" includes:
(a)
Storage of materials necessary for the completion of the development
or redevelopment activity;
(b)
Construction of a road or other pathway that is necessary for
access to the site of the development or redevelopment activity, if
the road or pathway is removed immediately after completion of the
development or redevelopment activity and the area is restored to
its previous vegetative condition;
(c)
Grading of a development site, if the area is restored to its
previous vegetative condition immediately after completion of the
development or redevelopment activity; and
(d)
Locating a septic system on a lot created before local program
approval if the septic system is located in existing grass or clearing
is not required.
(2)
"Temporary disturbance" does not include a violation.
THINNING
A forest practice used to accelerate tree growth of quality
trees in the shortest interval of time.
THREATENED SPECIES
Any species of fish, wildlife, or plants designated as such
by regulation by the Secretary of the Department of Natural Resources
that appear likely, within the foreseeable future, to become endangered,
including any species of wildlife or plant determined to be a "threatened"
species pursuant to the Federal Endangered Species Act, 16 U.S.C.
§ 1531 et seq., as amended.
TIDEWATER BUFFER - CA
A protective vegetated area established landward from the
mean high-water line of tidal waters, tributary streams and tidal
wetlands. The width of the buffer is a minimum of 100 feet and will
be expanded beyond 100 feet to include contiguous, sensitive areas
of nontidal wetlands, soils with high erosion potential and certain
hydric soils; more specifically, the minimum 100ed- or two-hundred-foot
buffer as described in COMAR 27.01.09.01.E.
TOPOGRAPHY
The existing configuration of the earth's surface, including
the relative relief, elevation, and position of land features.
TRANSITIONAL HABITAT
A plant community whose species are adapted to the diverse
and varying environmental conditions that occur along the boundary
that separates aquatic and terrestrial areas.
TREE
A large, woody plant having one or several self-supporting
stems or trunks and numerous branches that reach a height of at least
20 feet at maturity.
TRIBUTARY STREAM
A perennial stream or intermittent stream within the Critical
Area that has been identified by site inspection or in accordance
with local program procedures approved by the Critical Area Commission.
UNDERSTORY
The layer of forest vegetation typically located underneath
the forest canopy.
UNDERSTORY TREE
A tree that, when mature, reaches a height between 12 and
35 feet.
UNWARRANTED HARDSHIP - CA
That, without a variance, an applicant would be denied reasonable
and significant use of the entire parcel or lot for which the variance
is requested.
USE
(1)
A permitted activity as defined in this chapter.
(2)
If not covered by Subsection
(1) above, as identified as a permitted activity in this chapter and defined by general custom in Dorchester County.
(3)
If not covered by Subsection
(2) above, an activity which, by general custom in Dorchester County, is separate and may be purposefully conducted independent of other activities.
UTILITY
Any activity or use which provides and offers such services
as water, sewerage, sewage treatment, electricity, gas or telecommunication.
UTILITY TRANSMISSION FACILITIES - CA
Fixed structures that convey or distribute resources, wastes,
or both, including but not limited to electrical lines, water conduits
and sewer lines.
VARIANCE - CA
A modification only of density, bulk or area requirements
in this chapter where such modification will not be contrary to the
public interest and where, owing to conditions peculiar to the property
and not the results of any action taken by the applicant, a literal
enforcement of this chapter would result in unwarranted hardship.
WASH PLANT
A facility where sand and gravel is washed during processing.
WATER-DEPENDENT FACILITIES - CA
Those structures or works associated with industrial, maritime,
recreational, educational, or fisheries activities that require location
at or near the shoreline within the buffer. An activity is water-dependent
if it cannot exist outside the buffer and is dependent on the water
by reason of the intrinsic nature of its operation. Such activities
include, but are not limited to, ports, the intake and outfall structures
of power plants, water-use industries, marinas and other boat-docking
structures, public beaches and other public water-oriented recreation
areas, and fisheries activities.
WATER-USE INDUSTRY
An industry that requires location near the shoreline because
it utilizes surface waters for cooling or other internal purposes.
WATER-USE INDUSTRY - CA
An industry that requires location near the shoreline because
it utilizes surface waters for cooling or other internal purposes;
ports and industries which use water for transportation and derive
economic benefits from shore access on sites approved by the County
where it is determined that the proposed use will provide significant
economic benefit to the County.
WATERFOWL
Birds that frequent and often swim in water, nest and raise
their young near water, and derive at least part of their food from
aquatic plants and animals.
WETLAND MITIGATION PLAN - CA
A detailed plan that shows how adverse effects on nontidal
wetlands resulting from development activities will be addressed.
WILDLIFE CORRIDOR
A strip of land having vegetation that provides habitat and
safe passage for wildlife.
WILDLIFE HABITAT
Those plant communities and physiographic features that provide
food, water, cover, and nesting areas, as well as foraging and feeding
conditions necessary to maintain populations of animals in the Critical
Area.