New impervious surface definition

New impervious surface means the creation of a non-vegetated surface hard or compacted surface such as roofs, pavement, gravel or dirt or the addition of a more compacted surface such as the paving of existing dirt or gravel.

New impervious surface means a surface that is: changed from a pervious surface to an

New impervious surface means the creation of a hard or compacted surface such as roofs, pavement, gravel or dirt or the addition of a more compacted surface such as the paving of existing dirt or gravel. Permeable pavement and vegetated roofs are considered new impervious surface for purposes of determining whether the thresholds for application of minimum requirements are exceeded, as are lawns, landscaping, sports fields, golf courses, and other areas that have modified runoff characteristics resulting from the addition of underdrains designed to collect stormwater runoff. Open, uncovered retention/detention facilities shall not be considered impervious surfaces for purposes of determining whether the thresholds for application of minimum requirements are exceeded. Open, uncovered retention/detention facilities shall be considered impervious surfaces for purposes of runoff modeling. (Ord. O2011‐304 § 1 (Att. A))

Examples of New impervious surface in a sentence

• The information that will be tracked includes:  New shoreline development  Shoreline variances and the nature of the variance  Compliance issues  New impervious surface areas  Number of pilings  Removal of fill  Vegetation retention/loss  Bulkheads/armoring The City may require project proponents to monitor as part of project mitigation, which may be incorporated into this process.

• New impervious surface where cumulative area is ≥ 2,000 square feet • $160; and • $3,000 escrow for Township Engineer review and installation inspection(s).

• Proposed New Impervious Surface: New impervious surface that will cover an existing pervious surface.

• New impervious surface (if greater than 1,000 SF) shall comply with the Maine Chapter 500 General Standard by providing treatment of no less than 95% of the impervious area and 80% of the developed area.

• New impervious surface area from paved areas would total 1.8 hectares (4.6 acres), a negligible increase within the watershed.

More Definitions of New impervious surface

New impervious surface means an impervious surface created after the effective date of this Rule.

New impervious surface means the creation of impervious surface or the addition of a more compacted surface such as the paving of existing dirt or gravel.

New impervious surface means a surface that is:

New impervious surface means any of the following, alone or in combination:

New impervious surface means a surface that is: changed from a pervious surface to an impervious surface (e.g., resurfacing by upgrading from dirt to gravel, a bituminous surface treatment (“chip seal”), asphalt, concrete or an impervious structure); or upgraded from gravel to chip seal, asphalt, concrete, or an impervious structure; or from a impervious surface to an impervious structure. Note that if asphalt or concrete has been overlaid by a chip seal, the existing condition should be considered as asphalt or concrete.

New impervious surface means the creation of a hard or compacted surface

New impervious surface means any impervious surface proposed by a project that will increase the runoff curve number of that surface for existing site conditions (e.g. gravel to asphalt). See "Impervious Areas."