The words and terms used in this chapter shall be defined as follows in this section unless it is plainly evident from the context that a different meaning is intended. All words used in the singular shall include the plural and the plural the singular.
Each gender shall include the other; any tense shall include the other tenses. The word "shall" is mandatory and the word "may" is permissive.
BEST MANAGEMENT PRACTICES (BMPs): Schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of waters of the United States. BMPs also include treatment requirements, operating procedures, and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage. With regard to construction these may include structural devices or nonstructural practices that are designed to prevent pollutants from entering water or to direct the flow of water. Additional information can be obtained in the Nevada State Conservation Commission's "Best Management Practices Handbook" posted on the NDEP's web site.
CERTIFICATION: A signed written statement that the specific inspections, verifications of lines and grades and tests where required have been performed and that such inspections, verifications of lines and grades and tests comply with the applicable requirements of this chapter.
CLEAN WATER ACT (CWA): An act passed by the U.S. Congress to control water pollution. It was formerly referred to as the Federal Water Pollution Control Act of 1972 or Federal Water Pollution Control Act Amendments of 1972.
CLEARING AND GRUBBING: Clearing and grubbing for site preparation and/or vacant land cleanup, removal of vegetation down to duff or bare soil, by any method.
COMPACTION: The densification of fill by a mechanical means.
CONTAMINANT: Any physical, chemical, biological or radiological substance or matter which is added to water.
DESIGNATED OFFICIAL: That individual required by individual entities to administer this grading chapter.
DISCHARGE: Any addition of a pollutant or pollutants to water.
DUST CONTROL PERMIT: A permit issued by Clark County Department of Air Quality and Environmental Management, for all clearing and grading projects of one-quarter (1/4) acre or larger.
DUST PALLIATIVE: Hygroscopic material, non-toxic chemical stabilizer or other dust palliative material which is not prohibited for ground surface application by EPA (Environmental Protection Agency) or NDEP (Nevada Division of Environmental Protection) or any applicable law or regulation, as treatment material for reducing fugitive dust emissions.
ELEVATION: All elevations will be referenced from the National Geodetic Vertical Datum (NAVD) of 1988.
ENGINEERING GEOLOGIST: A geologist experienced and knowledgeable in engineering geology.
ENGINEERING GEOLOGY: The application of geological data and principles to engineering problems dealing with naturally occurring rock and soil for the purpose of assuring that geological factors are recognized and adequately interpreted in engineering practice.
ENVIRONMENTAL DEVELOPMENT PLAN: An agreement between the developer and the City of Mesquite to use best management practices, to minimize hazards to the environment during construction. This is a requirement for developments in the 1996 and 1999 Mesquite Land Act properties.
EROSION CONTROL: Erosion control practices protect the soil surface from being detached by rainfall or wind. Erosion control treats soil as a resource with value and works to keep it in place.
EXCAVATION OR CUT: An act by which soil, sand, gravel or rock is cut into, dug, quarried, uncovered, displaced or relocated, and shall include the conditions resulting therefrom.
FILL: Deposits of soil, rock or other earth material placed by man.
FINISH GRADE: The grade or elevation of the ground surface after grading is complete.
FLOOD HAZARD AREA: The area subject to flooding as defined on maps by the Federal Insurance Administration of the Federal Emergency Management Agency (FEMA) and/or the applicable map accepted by the local entity.
GEOLOGIC HAZARD: A naturally occurring or manmade geologic condition or phenomenon that presents a risk or is a potential danger to life and property. Examples of geologic hazards: land- sliding, flooding, earthquakes, ground subsidence, coastal and beach erosion, faulting, dam leakage and failure, mining disasters, pollution and waste disposal, and seawater intrusion.
GRADING: Any excavating or filling, or combination thereof, and shall include the land in its excavated or filled condition.
GRADING PERMIT: A permit issued pursuant to this chapter.
GROUND WATER, PHREATIC WATER: That part of the subsurface water which is in the zone of saturation.
LAND DISTURBANCE: The clearing, excavating, grading, or other manipulation of the terrain.
LOCAL ADMINISTRATOR: The public official, or his designee, who will be charged with lead responsibility for administering and implementing the Uniform Regulations for the Control of Drainage, Clark County Regional Flood Control District, within their entities.
NPDES: National Pollution Discharge Elimination System, a national program under section 402 of the Clean Water Act for regulation of discharges of pollutants from point sources to waters of the United States. Discharges are illegal unless authorized by an NPDES permit.
NATURAL GROUND SURFACE: The ground surface in its original state before any grading, excavation or filling.
NONCONTIGUOUS SITE: A site that is not adjacent to another.
NOTICE OF INTENT (NOI): Notice requesting authorization to discharge stormwater pursuant to the NPDES Construction General Permit applicable to that specific area (required on all sites 1 acre and larger).
ONSITE DETENTION: The temporary storage of runoff on the site.
ONSITE RETENTION: The permanent holding of runoff on the site through percolation to the ground.
OWNER: Any person who is the owner of, has a possessory interest in, has possession or control of, or occupies real property.
PERMITTEE: Any person to whom a permit is issued pursuant to this chapter.
ROUGH GRADE: The stage at which the grade approximately conforms to the approved plan.
SEDIMENT: Material deposited in a stream, drainage course, or other area from eroded earth material that was carried by wind, gravity, and runoff.
SEDIMENT CONTROL: Sediment control practices trap soil particles after they have been dislodged and moved by wind or water. Sediment controls are generally passive systems that rely on filtering or settling soil particles out of the water or wind that is transporting them. Sediment control treats soil as a waste product and works to remove it from stormwater runoff.
SITE: Any lot or parcel of land or contiguous combination thereof, under the same ownership, where grading is performed or permitted.
SLOPE: An inclined ground surface, the inclination of which is expressed as a ratio of horizontal distance to vertical distance.
SOIL: Naturally occurring superficial deposits overlaying in place solid rock.
SOILS/GEOTECHNICAL ENGINEER: A Nevada Registered Engineer experienced and knowledgeable in the practice of soil engineering.
SOILS/GEOTECHNICAL ENGINEERING: The application of the principles of soil mechanics in the investigation, evaluation and design of civil works, involving the use of earth materials and the inspection and testing of the construction thereof.
SPECIFICATIONS: A description of the material, processes, standards of performance and workmanship required in a project. Specifications may be indicated on plans or drawings or in written materials containing standard and special provisions such as soil reports. Other reports or standards as may be necessary pertaining to the quality of the project.
STOCKPILING: Stockpiling of materials, such as dirt, fill, Type II, rock or debris, for future use or export.
STORMWATER POLLUTION PREVENTION PLAN (SWPPP): A series of phases and activities to, first, characterize your site, and then to select and carry out actions which prevent the pollution of stormwater discharges. (Part of Federal NPDES program and requirement of all sites 1 acre and larger, a copy to be maintained on site and updated as changes are made to improve or correct conditions.)
TERRACE: A relatively level step constructed in the face of a graded surface for drainage and maintenance purposes.
TRACK-OUT: Soil on paved roadways deposited from vehicles that have passed from a construction site or from an unpaved access route onto the paved surface. (Ord. 510, 4-25-2017, eff. 5-17-2017)