Natural Drainage Systems definition

Natural Drainage Systems means unlined or unimproved (not engineered) creeks, streams, rivers or similar waterways.
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Natural Drainage Systems means all drainages that have not been improved (e.g., channelized or armored with concrete, shotcrete, or rip-rap) or drainage systems that are tributary to a natural drainage system.
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Examples of Natural Drainage Systems in a sentence

  • The Permittees shall implement a development-planning program that will require all Planning Priority development and Redevelopment projects to:• Minimize impacts from storm water and urban runoff on the biological integrity of Natural Drainage Systems and water bodies in accordance with requirements under CEQA (Cal.

  • The Permittees shall control post-development peak storm water runoff discharge rates, velocities, and duration (peak flow control) in Natural Drainage Systems (i.e., mimic pre-development hydrology) to prevent accelerated stream erosion and to protect stream habitat.

  • Also reference Green Street design guidelines in this Manual Chapter 6.2 Green Streets and Chapter 6.4 Natural Drainage Systems for streets in creek watersheds.Street Classification Map—Truck, Transit, Bicycle and Boulevard Classifications.

  • Please see the Marina BMPs for further options.Additional Resources: • Puget Sound Action Team: www.psat.wa.gov or 800-54-SOUND (See LID section for techniques, suppliers and Puget Sound case studies)• Washington State Department of Ecology: www.ecy.wa.gov/programs/wq/stormwateror (360) 407-6444• Seattle Public Utilities and Natural Drainage Systems: www.seattle.gov/util/About_SPU or (206) 684-3000.

  • The simplest plan may only need to address Minimum Requirement #2 – Construction Stormwater Pollution Prevention, and Minimum Requirement #4 – Preservation of Natural Drainage Systems and Outfalls.

  • Permit Part II.B.5.d ‐ New Development and Redevelopment Site Design to Minimize Impervious Areas, Preserve Vegetation, and Preserve Natural Drainage Systems, is vague, may be misinterpreted, and/or be regarded as impracticable by some parties.

  • Minimum Requirement #4: Preservation of Natural Drainage Systems and OutfallsNatural drainage patterns shall be maintained, and discharges from the project site shall occur at the natural location, to the maximum extent practicable.

  • Topography, infrastructure, and landscape were designed to meet Seattle Public Utilities’ goals for Natural Drainage Systems, including stormwater management, improvements in ecology, safety, and aesthetics..

  • Natural Drainage Systems (NDS) Partnering Program ($35M 2016-2025, $$ vary per year)This program designs and constructs roadside green infrastructurein the public right-of-way to remove pollutants, improve conveyance, and address localized flooding in Seattle’s three major creek watersheds: Thornton, Pipers, and Longfellow.

  • ATER QUALITY‌Laguna Beach General Plan Open Space/Conservation Element LCP Policies: Policy 4E Preserve Functions of Natural Drainage Systems: Ensure that development is sited and designed to limit disturbances and to preserve the infiltration, purification, retention and conveyance functions of natural drainage systems that exist on the site to the maximum extent practicable.

Related to Natural Drainage Systems

  • Drainage system means one or more artificial ditches, tile drains or similar devices which collect surface runoff or groundwater and convey it to a point of discharge.

  • Sewerage system means pipelines or conduits, pumping stations, and force mains, and all other

  • Sewage system means the entire sewage treatment and subsurface disposal system;

  • Transportation project or "project" means any or the

  • public service infrastructure means publicly controlled infrastructure of the following kinds:

  • energy infrastructure means any physical equipment or facility which is located within the Union or linking the Union to one or more third countries and falling under the following categories:

  • Levee system means a flood protection system which consists of a levee, or levees, and associated structures, such as closure and drainage devices, which are constructed and operated in accordance with sound engineering practices.

  • Underground source of drinking water means an aquifer or its portion:

  • Green infrastructure means a stormwater management measure that manages stormwater close to its source by:

  • Energy storage system means a system which stores energy and releases it in the same form as was input.

  • Hydroelectric energy means water used as the sole source of energy to produce electricity.

  • Electric System Upgrades means any Network Upgrades, Distribution Upgrades, or Interconnection Facilities that are determined to be necessary by the CAISO or Participating Transmission Owner, as applicable, to physically and electrically interconnect the Project to the Participating Transmission Owner’s electric system for receipt of Energy at the Point of Interconnection (as defined in the CAISO Tariff) if connecting to the CAISO Grid, or the Interconnection Point, if connecting to a part of the Participating TO’s electric system that is not part of the CAISO Grid.

  • Utility system means a water system, solid waste

  • Sewage sludge means a solid, semi-solid, or liquid residue generated during the treatment of domestic sewage in a treatment works as defined in section 6111.01 of the Revised Code. "Sewage sludge" includes, but is not limited to, scum or solids removed in primary, secondary, or advanced wastewater treatment processes. "Sewage sludge" does not include ash generated during the firing of sewage sludge in a sewage sludge incinerator, grit and screenings generated during preliminary treatment of domestic sewage in a treatment works, animal manure, residue generated during treatment of animal manure, or domestic septage.

  • Green building strategies means those strategies that minimize the impact of development on the environment, and enhance the health, safety and well-being of residents by producing durable, low-maintenance, resource-efficient housing while making optimum use of existing infrastructure and community services.

  • Ex-situ conservation means the conservation of components of biological diversity outside their natural habitats.

  • Infrastructure means infrastructure serving the County and improved or unimproved real estate and personal property, including machinery and equipment, used in the operation of the Project, within the meaning of Section 4-29-68 of the Code.

  • Drainage area means a geographic area within which stormwater, sediments, or dissolved materials drain to a particular receiving waterbody or to a particular point along a receiving waterbody.

  • Transportation Facilities means any physical facility that moves or assist in the movement of people or goods including facilities identified in OAR 660-012-0020 but excluding electricity, sewage, and water systems.

  • Mine drainage means any drainage, and any water pumped or siphoned, from an active mining area or a post-mining area. The abbreviation “ml/l” means milliliters per liter.

  • Rechargeable Electrical Energy Storage System (REESS) means the rechargeable energy storage system that provides electric energy for electrical propulsion.

  • Pipeline means any pipe, pipes, or pipelines used for the intrastate transportation or transmission of any solid, liquid, or gaseous substance, except water.

  • Critical Energy Infrastructure Information means all information, whether furnished before or after the mutual execution of this Agreement, whether oral, written or recorded/electronic, and regardless of the manner in which it is furnished, that is marked “CEII” or “Critical Energy Infrastructure Information” or which under all of the circumstances should be treated as such in accordance with the definition of CEII in 18 C.F.R. § 388.13(c)(1). The Receiving Party shall maintain all CEII in a secure place. The Receiving Party shall treat CEII received under this agreement in accordance with its own procedures for protecting CEII and shall not disclose CEII to anyone except its Authorized Representatives.

  • Stormwater management system means any equipment, plants,

  • Sanitary landfill means a disposal facility for solid waste so located, designed and operated that it

  • Stormwater management planning area means the geographic area for which a stormwater management planning agency is authorized to prepare stormwater management plans, or a specific portion of that area identified in a stormwater management plan prepared by that agency.