Natural Drainage System definition

Natural Drainage System means a drainage system that has not been improved (e.g., channelized or armored). The clearing or dredging of a natural drainage system does not cause the system to be classified as an improved drainage system (Order No. R4-2012-0175).
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Natural Drainage System means the physical beds and boundaries of receiving waters, including those natural drainage systems that have been altered by human actions.
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Natural Drainage System means any unlined or unimproved (not engineered) creek, stream, river, or similar waterway.
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Examples of Natural Drainage System in a sentence

  • Natural Drainage System means a drainage system that has not been improved (e.g., channelized or armored).

  • A provider may have additional delegates informally identified to serve as a delegate but the provider can only have 10 active delegates at any time assigned to his/her account.

  • The city of Seattle is implementing a new Natural Drainage System Program (NDS) for retrofitting residential streets that replaces conventional curb and gutter or roadside ditches with bioretention swales.

  • Researching the process and history by which other sustainable stormwater programs have been implemented and funded has clarified how a citywide sustainable stormwater management policy could move forward in San Francisco.In 1999, the City of Seattle implemented the Natural Drainage System (NDS) approach to stormwater management.

  • Natural Drainage System: This term refers to the open and vegetated drainage channels and the surface water treatment facilities which comprises the great majority of Lake Oswego’s storm water conveyance system.

  • CEC testing completed on April 5, 2004 for the Engineered and Bioretention Soils used in the Broadview Green Grid Natural Drainage System project (laboratory report attached) found that these soils had a CEC of 10 and 9.6 meq/100 gm, respectively.

  • Only one of these, the state-listed “Aquatic Ecological Community In The Natural Drainage System of the Lower Murray River Catchment” (Lower Murray River aquatic ecological community), was found to be present at the proposal site• Four state-listed threatened flora species have the potential to occur in the study area.

  • In the second quarter the Natural Drainage System (NDS) Partnering program, which will deliver treatment of 44.4 acres of effective impervious area in the Longfellow,Pipers, and Thornton Creek basins, shared design progress with the community for South Thornton NDS (90% design), sent out a community survey in North Thornton NDS (site selection/ 10% design) and received over 500 responses, and initiated construction of Longfellow NDS.

  • There were another two projects that appeared to move from the original Draft List to the supplement [Revised] Draft List (Whatcom County Water Quality Improvement Loan Program and King County-Venema Natural Drainage System).

  • Chapter Purpose6.4.2 Definition of Natural Drainage Systems6.4.3 Benefits of Natural Drainage Systems6.4.4 Where Natural Drainage Systems Work Best6.4.5 Design Guidance6.4.6 Approval and Permit Procedures6.4.7 Maintenance Responsibilities 6.4.1 Chapter Purpose The purpose of this chapter is to provide guidance to applicants that are interested in Green Stormwater Infrastructure (GSI) and/or Natural Drainage System (NDS) designs as part of their right-of-way improvement project.

Related to Natural Drainage System

  • 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.

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

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

  • Transportation project means any project that the department is authorized by law to undertake including but not limited to a highway, tollway, bridge, mass transit, intelligent transportation system, traffic management, traveler information services, or any other project for transportation purposes.

  • Natural environment means the air, land and water, or any combination or part thereof, of the Province of Ontario; (“environnement naturel”)

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

  • 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.

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

  • 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.

  • Solid Waste Disposal Facility means any facility involved in the disposal of solid waste, as defined in NCGS 130A-290(a)(35).

  • Emergency Medical Transportation means the transportation, by ambulance, of sick, injured or otherwise incapacitated persons who require emergency medical care.

  • Solid waste facility means a site, location, tract of land, installation, or building used for incineration, composting, sanitary landfilling, or other methods of disposal of solid wastes or, if the solid wastes consist of scrap tires, for collection, storage, or processing of the solid wastes; or for the transfer of solid wastes.

  • E-System means any electronic system approved by Agent, including Syndtrak®, Intralinks® and ClearPar® and any other Internet or extranet-based site, whether such electronic system is owned, operated or hosted by Agent, any of its Related Persons or any other Person, providing for access to data protected by passcodes or other security system.

  • Transportation facility means any transit, railroad,

  • Underground storage tank system means an underground storage tank and the connected underground piping, underground ancillary equipment, and containment system, if any.

  • 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.

  • Waste prevention means source reduction and reuse, but not recycling.

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

  • Sanitary landfill means an engineered land burial facility for the disposal of household waste that is so located, designed, constructed, and operated to contain and isolate the waste so that it does not pose a substantial present or potential hazard to human health or the environment. A sanitary landfill also may receive other types of solid wastes, such as commercial solid waste, nonhazardous sludge, hazardous waste from conditionally exempt small quantity generators, construction, demolition, or debris waste and nonhazardous industrial solid waste. See 9VAC20-81 (Solid Waste Management Regulations) for further definitions of these terms.

  • waste disposal facility means an individual or entity that has been issued a medical marijuana waste disposal facility license by the Department to dispose of medical marijuana waste as authorized in Oklahoma law and these Rules.