For the purpose of this chapter, the following words and phrases shall have the meanings respectively ascribed to them by this section:
The Maryland Department of the Environment, Water Management Administration.[1]
[Added by Bill No. 10-11]
Any deleterious effect on waters or wetlands, including their quality, quantity, surface area, species composition, aesthetics or usefulness for human or natural uses, which are or may potentially be harmful or injurious to biological productivity, diversity or stability or to human health, welfare or safety or to property, or which unreasonably interferes with the enjoyment of life or property, including outdoor recreation.
Those methods and procedures used in the farming of land, including but not limited to the planting, thinning and harvesting of Christmas trees, shrubs or orchard trees; the preparation of land for agricultural purposes, including but not limited to installing fence rows, planting of hedge rows, plowing new farm fields or the reclamation of previously tilled farm fields when utilized for ongoing farming operations; the conservation of related soil and water resources; and the cultivation of land in order to further crop or livestock production. Commercial logging and timber removal operations are not considered an agricultural land management practice.[2]
[Amended by Bill No. 12-57]
Any person, firm or governmental agency who executes the necessary forms and/or plans to procure official approval for a project or a permit to carry out construction of a project. The applicant must be the owner of the land to be developed or an authorized agent of the owner (e.g., an engineering firm or contract purchaser).
[Amended by Bill No. 10-11]
A set of representational drawings or other documents submitted by an applicant as a prerequisite to obtaining a grading and/or stormwater management permit, which have been determined by the Department of Public Works, the Harford Soil Conservation District and any state and/or federal agency to contain sufficient evidence and information to satisfy the requirements of this chapter.
The entity responsible for the review and approval of stormwater management plans and/or erosion and sediment control plans.
[Added by Bill No. 10-11; amended by Bill No. 12-57]
A porous water-bearing geologic formation generally restricted to materials capable of yielding an appreciable supply of water.
[Amended by Bill No. 10-11]
A set of approved plans and other documents submitted by the engineer-in-charge which have been noted with actual construction information for approval by the Department of Public Works and are sealed and signed by the engineer-in-charge.
The owner(s) of a lot or parcel, the runoff from which was considered in designing a stormwater management facility to satisfy the requirements of this chapter for developing land.
A structural device or nonstructural practice designed to temporarily store or treat stormwater runoff in order to mitigate flooding, reduce pollution and provide other amenities.
[Amended by Bill No. 10-11]
A cash bond, corporate bond, irrevocable letter of credit or other security approved by the County and required of the applicant by the Department of Public Works before issuance of any stormwater management permit or grading permit. Each permit will require a separate individual and independent performance bond.
An official document or certificate issued by the Harford County Department of Inspections, Licenses and Permits authorizing construction of a structure as provided for in Chapter 82 of the Harford County Code.
The volume used to design structural management practices to control stream channel erosion. Methods for calculating the channel protection storage volume are specified in the Design Manual.
[Amended by Bill No. 10-11]
Any activity which removes the vegetative surface cover, including removal of trees, brush and/or grass, stripping, grubbing and storage or removal of topsoil from the land but shall not include the ordinary mowing of grass.
[Amended by Bill No. 10-11]
The Code of Maryland Regulations.
The first of three plans submitted under the comprehensive review and approval process described in COMAR 26.17.02 and shall include the information necessary to allow an initial evaluation of a proposed project.
[Added by Bill No. 12-57]
Harford County, Maryland.
The Harford County Department of Public Works represented by the Director or the Director's designee.
The "2000 Maryland Stormwater Design Manual, Volumes I and II," and all subsequent revisions, that serves as the official guide for stormwater management principles, methods and practices.
[Amended by Bill No. 10-11]
A permanent structure for the temporary storage of stormwater runoff, which is designed so as not to create a permanent pool of water.
Any person, firm or governmental agency whose objective is to develop land.
To change the runoff characteristics of a parcel of land in conjunction with the construction, reconstruction, conversion, erection, alteration, relocation or enlargement of any residential, commercial, industrial, recreational or institutional building, structure, roadway or paving; any mining or landfill; or any land-disturbing activities in preparation for any of the above.
The construction of any residential, commercial, industrial, recreational or institutional building, structure, roadway or paving; any mining or landfill; or any land-disturbing activities in preparation for the above.
The concentrated release of stormwater to tidal waters or vegetated tidal wetlands from new development or redevelopment projects in the critical area.
The Director of Public Works of the County.
Harford Soil Conservation District.
That area contributing runoff to a single point measured in a horizontal plane which is enclosed by a ridge line as determined by existing or proposed contours, and/or features depending on the purpose for which the area is defined.
A grant or reservation by the owner of land for the use of such land by others for a specific purpose or purposes, and which must be included in the conveyance of land affected by such easement.
The professional engineer who is responsible for assuring that stormwater management facilities are built in accordance with the approved plans and in accordance with the assumptions made during the design and certified same to the Department.
Using small-scale stormwater management practices, nonstructural techniques and better site planning to mimic natural hydrologic runoff characteristics and minimize the impact of land development on water resources.
[Added by Bill No. 10-11]
The process by which the land surface is worn by the action of wind, water, ice or gravity.
A system of structural and vegetative measures that minimizes soil erosion and off-site sedimentation.
[Added by Bill No. 12-57]
An erosion and sediment control strategy or plan designed to minimize erosion and prevent off-site sedimentation.
[Added by Bill No. 12-57]
Any act by which soil is cut into, dug, quarried, uncovered, removed, displaced or relocated.
A stormwater design feature that provides gradual release of a volume of water in order to increase settling of pollutants and protect downstream channels from frequent storm events. Methods of designing extended detention BMPs are specified in the Design Manual.
The storage volume required to control those infrequent but large storm events in which over bank flows reach or exceed the boundaries of the 100-year floodplain.
Any act by which soil is deposited, dropped, placed, pushed, pulled or transported to a location different from its original position, and shall include the conditions resulting therefrom.
Along with the final stormwater management plan, the last of three plans submitted under the comprehensive review and approval process described in COMAR 26.17.02. Final erosion and sediment control plans shall be prepared and approved in accordance with the specific requirements of the District and designed in accordance with the Standards and Specifications.
[Added by Bill No. 12-57]
The grading of a site to the finished grade.
The final grade or elevation of the ground surface.
That land which is theoretically inundated by the stormwater runoff created by a 100-year frequency rainfall event (which is an event having a 1% chance of occurrence in any year) calculated using current standards approved by the Department based on a maximum development of the watershed as currently zoned.
Prolonging the flow time of runoff to reduce the peak discharge.
The commercial logging or harvesting of timber by cutting trees at or above ground level including but not limited to the associated haul road, skid trails and staging areas. The removal of stumps or roots is not considered a forest harvest operation.
A permit authorizing a forest harvest operation in accordance with the requirements of Article I.
To disturb the earth by, including but not limited to, excavating, filling, stockpiling, grubbing, removing root mat or topsoil, or any combination thereof.
[Added by Bill No. 12-57]
The stockpiling, excavating or filling of earth material, or any land-disturbing activity, or any combination thereof.
The maximum contiguous area allowed to be graded at a given time. For the purposes of this article a grading unit is 20 acres or less.
[Added by Bill No. 12-57; amended by Bill Nos. 17-014; 24-011[4]]
Those soils with a slope greater than 15% or those soils with a soil erodability factor, K, greater than 0.35 and with slopes greater than 5%.
[Added by Bill No. 12-57]
Any surface that does not allow stormwater to infiltrate into the ground.[5]
[Added by Bill No. 10-11]
Development in a priority funding area on vacant, bypassed or underutilized land within built up areas of existing communities where infrastructure is already in place.
[Added by Bill No. 10-11]
The passage, movement, penetration, absorption or percolation of water into and through the soil media.
The Department.
[Added by Bill No. 12-57]
Any tilling, clearing, grubbing or grading of the land, or any artificial movement of the soil, or the covering of land surfaces with an impermeable layer.
A cash bond, corporate bond, irrevocable letter of credit or other security approved by the County and required of the applicant by the Department for the maintenance period. Each permit will require a separate individual and independent maintenance bond.
The United States Department of Agriculture, Natural Resources Conservation Service, "Maryland Conservation Practice Standard, Pond Code 378," latest edition.
Designing stormwater management systems so that all reasonable opportunities for using ESD planning techniques and treatment practices are exhausted and only where absolutely necessary a structural BMP is implemented.
[Added by Bill No. 10-11]
Pollution that is generated by diffuse land use activities rather than from an identifiable or discrete source and is conveyed to waterways through natural processes, such as rainfall, stormwater runoff or groundwater seepage rather than by direct discharge.
Stormwater management designed and constructed outside the boundaries of the site being developed so as to manage stormwater runoff for the drainage area of the site; or constructed to manage stormwater runoff for many sites and located within one of the sites being managed; or a regional facility.
Stormwater management designed and constructed within the boundaries of the site to manage stormwater runoff from the site.
The volume controlled by structural practices to prevent an increase in the frequency of out of bank flooding generated by development. Methods for calculating the over bank flood protection volume are specified in the Design Manual.
A person undertaking, or for whose benefit, activities covered by Article I are carried on. General contractors or subcontractors, or both, without a proprietary interest in a project are not included within this definition.
[Added by Bill No. 12-57]
A cash bond, corporate bond, irrevocable letter of credit or other surety approved by the County and required of the applicant by the Department before issuance of any stormwater management permit or grading permit. Each permit will require a separate individual performance bond.[6]
A practice where vegetative cover and/or structural methods are applied to a site per requirements of the standards and specifications for soil erosion and sediment control of the Maryland Department of the Environment which will result in a permanent (i.e., 6 months or more) cover to prevent erosion or other adverse impacts from occurring.
[Amended by Bill No. 12-57[7]]
Any person to whom a building, grading or stormwater management permit has been issued.
[Added by Bill No. 12-57]
Includes the federal government, the state, any county, municipal corporation, or other political subdivision of the state, or any of their units, or an individual receiver, trustee, guardian, executor, administrator, fiduciary or representative of any kind, or any partnership, firm, association, public or private corporation or any other entity.
[Added by Bill No. 10-11]
A combination of strategies employed early in project design to reduce the impact from development and to incorporate natural features into a stormwater management plan.
[Added by Bill No. 10-11]
Pollution discharged through any discernable, confined and discrete conveyance, including any pipe, ditch, channel, tunnel, conduit, well or discrete fissure.
Those conditions that exist after development.
Those conditions that exist prior to any development occurring on the land.
An architect duly registered by the State of Maryland to practice professional architecture in accordance with the provisions of the Annotated Code of Maryland, Business Occupations and Professions Article, Title 3, as amended.
An engineer duly licensed by the State of Maryland to practice professional engineering in accordance with the provisions of the Annotated Code of Maryland, Business Occupations and Professions Article, Title 14, as amended.
A forester duly registered by the State of Maryland to practice professional forestry in accordance with the provisions of the Annotated Code of Maryland, Business Occupations and Professions Article, Title 7, as amended.
A landscape architect duly registered by the State of Maryland to practice professional landscape architecture in accordance with the provisions of the Annotated Code of Maryland, Business Occupations and Professions Article, Title 9, as amended.
A land surveyor duly registered by the State of Maryland to practice professional land surveying in accordance with the provisions of the Annotated Code of Maryland, Business Occupations and Professions Article, Title 15, as amended.
That portion of the water quality volume used to maintain groundwater recharge rates at development sites. Methods for calculating the recharge volume are specified in the Design Manual.
Any construction, alteration or improvement performed on sites where existing land use is commercial, industrial, institutional or multi-family residential and existing site impervious area exceeds 40 percent.
[Amended by Bill No. 10-11]
Any foreman, superintendent or project engineer who is in charge of on-site clearing and grading operations or the implementation and maintenance of an erosion and sediment control plan.
[Amended by Bill No. 12-57]
A permanent structure designed to provide storage of runoff by means of a permanent pool of water.
The implementation of ESD practices, construction of a structural BMP or the modification of an existing structural BMP in a previously developed area to improve water quality over current conditions.
[Amended by Bill No. 10-11]
Any grading prior to the final grading of the site.
Harford County rules and regulations for stormwater management and/or erosion and sediment control.
[Amended by Bill No. 10-11]
Soils or other surficial materials transported or deposited by the action of wind, water, ice, gravity or artificial means.
[Amended by Bill No. 12-57]
A measure, device, structure or system used during development to control erosion and sediment deposition.[8]
Tidal and non-tidal wetland areas, natural resource districts and the buffers associated with each.
Any tract, lot or parcel of land or combination of contiguous tracts, lots or parcels of land which are in one ownership or are contiguous and in diverse ownership where development is to be performed as part of a unit, subdivision or project.
[Amended by Bill No. 10-11]
The second of three plans submitted under the comprehensive review and approval process described in COMAR 26.17.02. A site development plan shall include the information necessary to allow a detailed evaluation of a proposed project.
[Added by Bill No. 12-57]
The deviation of the land surface from the horizontal. Expressed either as a ratio of horizontal distance to vertical distance or as a percentage (vertical distance divided by horizontal distance multiplied by 100).
Earth, sand, gravel, rock or other surficial material.[9]
The protection of exposed soils from erosion by the application of seed and mulch, seed and matting, sod, other vegetative measures, and/or structural means.
[Added by Bill No. 10-11; amended by Bill No. 12-57]
The County's form authorizing land-disturbing activities between 5,000 and 30,000 square feet of disturbed area or involving between 100 and 1,000 cubic yards of earth movement.[10]
The current "Maryland Standards and Specifications for Soil Erosion and Sediment Control" or any subsequent revisions.
[Amended by Bill No. 12-57]
An order issued by the Department, due to the existence of a violation of this chapter on the site, to cease all work with the exception of work required to correct the violation until the violation is corrected to the satisfaction of the Department.[11]
Water that originates from a precipitation event.
[Added by Bill No. 10-11]
Providing stormwater quality and/or quantity management at an off-site location in lieu of on-site treatment using an accounting system of credits and debits to track the overall level of water quality and/or quantity control in each watershed.[12]
[Added by Bill No. 10-11]
The last of three required plan submittals that includes the information necessary to allow for the approval by the Department.
[Added by Bill No. 10-11]
A signed agreement between the County and the property owner(s) recorded in the land records of the County to ensure maintenance of privately owned stormwater management facilities.
Includes natural areas, ESD practices, stormwater management measures and any other structure through which stormwater flows, infiltrates or discharges from a site.
[Added by Bill No. 10-11]
Those perennial and intermittent watercourses identified through site inspection and as approved by the Department. The most recent County photogrammetric maps may be used as a guide for the preliminary establishment of possible watercourses.
A classification system of streams based on stream hierarchy; the smaller the stream, the lower its numerical classification. A first order stream does not have tributaries and normally originates from springs and/or seeps. At the confluence of two first order streams, a second order stream begins. Similarly, a third order stream begins at the confluence of two second order streams and so on.
A watercourse together with the 100-year floodplain and/or hydrologically connected nontidal wetlands.
Any activity which removes the vegetative surface cover, including tree removal, clearing, grubbing and storage or removal of topsoil.
Designated uses for the surface waters of the state set forth in COMAR 26.08.02.02.[14]
A practice where vegetative cover and/or structural methods are applied per requirements of the standards and specifications for soil erosion and sediment control, which result in a temporary (i.e., less than 6 months) cover to prevent erosion or other adverse impacts from occurring.[15],[16]
[Amended by Bill No. 12-57]
The United States Department of Agriculture.
An official document or certificate issued by the Harford County Department of Inspections, Licenses and Permits authorizing the use of a structure for the purpose for which it was intended, as provided for in Chapter 82 of the Harford County Code.
A modification of the minimum requirements of Article I and/or Article II for a site when requested by the applicant under specific circumstances for which strict adherence of the requirements would result in unnecessary hardship and would not fulfill the provisions of this chapter. The review for a variance for each article is independent of the remaining article.
[Amended by Bill No. 10-11]
The reduction of stormwater management requirements by the Department for a site when requested by the applicant on a case-by-case review basis.
[Amended by Bill No. 10-11]
Both surface and underground watercourses within the boundaries of the State of Maryland subject to its jurisdiction, including that part of the Atlantic Ocean within the boundaries of the state, the Chesapeake Bay and its tributaries, and all ponds, lakes, watercourses, tidal and non-tidal wetlands and public drainage systems within this state, other than those designed and used to collect, convey or dispose of sanitary sewage; and the floodplain of free-flowing waters determined by the Department of the Environment on the basis of the 100-year floodplain.
Any natural or artificial streams, rivers, creeks, ditches, channels, canals, conduits, culverts, drains, waterways, gullies, ravines or washes, in which water flows in a definite direction or course, either continuously or intermittently, and including any area adjacent thereto which is subject to inundation by reason of overflow or floodwater.[18]
The volume needed to capture and treat the runoff from 90% of the average annual rainfall at a development site. Methods for calculating the water quality volume are specified in the Design Manual.
The total drainage area contributing runoff to a single point.
[1]
Editor's Note: The definition of "administrative waiver," which immediately followed this definition, added by Bill No. 10-11, was repealed by Bill No. 11-24.
[2]
Editor’s Note: The former definition of "apartment building," added by Bill No. 13-12 and which immediately followed this definition, was repealed by Bill No. 14-36.
[3]
Editor's Note: The definition of "grading permit holder," which immediately followed this definition, was repealed by Bill No. 12-57.
[4]
Editor's Note: Section 2 of this ordinance provided that projects and sites with preliminary plan or site approval as of the effective date of the Act shall not be subject to the 20 acre grading unit limitation imposed by this Act.
[5]
Editor’s Note: The former definition of “impervious unit,” added by Bill No. 13-12 and which immediately followed this definition, was repealed by Bill No. 14-36.
[6]
Editor's Note: The definition of "permanent borrow area," which immediately followed this definition, was repealed by Bill No. 12-57.
[7]
Editor's Note: This ordinance also repealed the definition of "permanent stockpile area," which immediately followed this definition.
[8]
Editor's Note: The definition of "sediment trapping device," which immediately followed this definition, was repealed by Bill No. 12-57.
[9]
Editor's Note: The definition of "soil conservation water quality plan," which immediately followed this definition, was repealed by Bill No. 12-57.
[10]
Editor's Note: The definition of "standard plan holder," which immediately followed this definition, was repealed by Bill No. 12-57.
[11]
Editor’s Note: The definition of "stormwater management," which immediately followed this definition, was repealed by Bill No. 10-11.
[12]
Editor's Note: The definition of "stormwater management concept plan," added by Bill No. 10-11, which immediately followed this definition, was repealed by Bill No. 12-57.
[13]
Editor’s Note: The definition of "stormwater management plan," which immediately followed this definition, was repealed by Bill No. 10-11. In addition, the definition of "stormwater management site development plan," added by Bill No. 10-11, which followed this definition, was repealed by Bill No. 12-57.
[14]
Editor's Note: The definition of "temporary borrow area," as amended by Bill No. 10-11, which immediately followed this definition, was repealed by Bill No. 12-57.
[15]
Editor's Note: The definition of "temporary stockpile area," as amended by Bill No. 10-11, which immediately followed this definition, was repealed by Bill No. 12-57.
[16]
Editor’s Note: The former definition of “unimproved property,” added by Bill No. 13-12 and which immediately followed this definition, was repealed by Bill No. 14-36.
[17]
Editor's Note: The definitions of "waste" and "wastewater," which immediately followed this definition, were repealed by Bill No. 12-57.
[18]
Editor’s Note: The definition of "Water Management Administration," which immediately followed this definition, was repealed by Bill No. 10-11.