Sec. 38-308

Other

• AgriculturalAgricultureRaising crops or livestock, generally including the structures that serve them. pollutant load reduction40 pct

  achieve a 40 percent reduction in nonpoint source pollution from agricultural uses.

• Buffer encroachment limit from water50 ft

  The encroachment may not extend into the seaward 50 feet of the buffer area.

• Buffer nutrient reduction40 pct

  The 100-foot buffer area shall be deemed to achieve a 75 percent reduction of sediments and a 40 percent reduction of nutrients.

• Buffer sediment reduction75 pct

  The 100-foot buffer area shall be deemed to achieve a 75 percent reduction of sediments and a 40 percent reduction of nutrients.

• Buffer width100 ft

  A 100-foot buffer area of vegetation that is effective in retarding runoff, preventing erosion and filtering nonpoint source pollution from runoff shall be retained if present and established where it does not exist.

• Environmental site assessment required

  An environmental site assessment shall be submitted as a component of, and in conjunction with, site plan approval.

• ImperviousImpervious coverageThe share of a lot covered by anything water cannot soak through — roofs, drives, patios. cover minimization

  Impervious cover shall be minimized consistent with the proposed use or type of development.

• Minimum tree DBH for preservation6 in

  Existing trees over six inches in diameter at breast height (DBH) shall be preserved outside the construction footprint.

• Plan of development threshold2,500 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  Any development or redevelopment in a Chesapeake Bay Preservation Area (CBPA) exceeding 2,500 square feet of land disturbance shall be accomplished through a plan of development process...

• Post-development pollutant load limit

  For development, the post-development nonpoint source pollution runoff load shall not exceed the pre-development load, based on the calculated average impervious cover of 34 percent.

• Redevelopment pollutant load reduction10 pct

  For sites within IDAs or other isolated redevelopment sites, the nonpoint source pollution load shall be reduced by at least ten percent.

• Tree replacement ratio3 trees per tree removed

  replacement of existing trees and other vegetation will be achieved at a ratio of three planted trees to one removed.

• Development in RPA restriction

  Development in RPAs may be allowed only if it is water-dependent, or it constitutes redevelopment; or it constitutes development or redevelopment within the intensely developed area.

• Stormwater management plan contents

  A stormwater management plan shall contain maps, graphs, tables, narrative descriptions and citations to supporting references as appropriate to communicate information required by section 38-312(b).

• Surety required for landscaping

  When the occupancy of a structure is desired prior to the completion of the required landscaping, stormwater management facilities, or other specifications of an approved plan, a certificate of occupancy may be issued only if the applicant provides to the town a form of surety satisfactory to the zoning administrator...

• Tree protection barrier distance from drip line5 ft

  Prior to clearing or grading, suitable protective barriers, such as safety fencing, shall be erected five feet outside of the drip-line of any tree or stand of trees to be preserved.

• Water quality impact assessment required

  A water quality impact assessment shall be required for any land disturbance within a resource protection area.