Excavation dewatering definition

Excavation dewatering means removal of uncontaminated (e.g. groundwater) that accumulates in an excavation that is being performed for the purpose of construction (e.g., building foundations or installation of equipment below grade). “Excavation dewatering” may include the removal of accumulated stormwater or groundwater. See also, the definition of “Mine dewatering” in Part 8.20.
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Examples of Excavation dewatering in a sentence

  • Excavation, dewatering, and cleaning of cofferdams shall be performed in such a manner as to prevent siltation.

  • Excavation dewatering may require filtering for solids removal prior to discharge.

  • Includes: Excavation, dewatering, disconnection from existing system, backfill, and surface restoration at the location of the disconnection.

  • The Contractor will not be paid for re-vegetation of disturbed areas which resulted from the Contractor’s carelessness or negligence in performing the Work.SECTION 24 TRENCHING, BEDDING AND BACKFILL 1.0 GENERAL 1.1 DESCRIPTION Work included: Excavation, dewatering, preparation of the trench bottom; installation of foundation, bedding, and shading material; backfill, and disposal of waste material for the installation of pipelines, manholes, and their related appurtenances.

  • Excavation, dewatering, sheeting, and bracing shall be performed so as to eliminate any possibility of undermining or disturbing the foundation of any existing structures, utilities, pavement and concrete flatwork.

  • Excavation dewatering water will be contained in portable tanks and sampled prior to offsite disposal.

  • Excavation dewatering in all regions of Alaska with exception to the Denali National Park and Preserve and the Indian Reservation of Metlakatla are eligible for coverage under this permit.

  • The data about break through time/strength of material are standard values! The exact break through time/strength of material has to be obtained from the producer of the protective glove.

  • Excavation dewatering shall maintain the subgrade in a natural undisturbed condition and until the fill, structure or pipes to be built thereon have been completed to such extent that they will not be floated or otherwise damaged by allowing water levels to return to natural elevations.

  • Excavation de-watering is the removal of water from trenches, foundations, coffer dams, ponds, and other areas within the construction area that retain water after excavation.

Related to Excavation dewatering

  • Excavation means the mechanical removal of earth material.

  • Excavation work means the making of any man-made cavity, trench, pit or depression formed by cutting, digging or scooping;

  • Excavate or "excavation" means ditching, dredging, or mechanized removal of earth, soil or rock.

  • Excavation zone means the volume containing the tank system and backfill material bounded by the ground surface, walls, and floor of the pit and trenches into which the UST system is placed at the time of installation.

  • Dewatering means the removal of water for construction activity. It can be a discharge of appropriated surface or groundwater to dry and/or solidify a construction site. It may require Minnesota Department of Natural Resources permits to be appropriated and if contaminated may require other MPCA permits to be discharged.

  • Water Surface Elevation (WSE means the height, in relation to NAVD 1988, of floods of various magnitudes and frequencies in the floodplains of riverine areas.

  • Water surface elevation means the height, in relation to the National Geodetic Vertical Datum (NGVD) of 1929, the North American Vertical Datum (NAVD) of 1988, or other datum, where specified, of floods of various magnitudes and frequencies in the floodplains of riverine areas.

  • 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.

  • Built-Up Area and/or “Covered Area” in relation to a Flat shall mean the floor area of that Flat including the area of balconies and terraces, if any attached thereto, and also the thickness of the walls (external or internal) and the columns and pillars therein Provided That if any wall, column or pillar be common between two Flats, then one-half of the area under such wall column or pillar shall be included in the built-up area of each such Flat.

  • Underground facility means any item which shall be buried or placed below ground for use in connection with the storage or conveyance of water, sewage, electronic, telephone or telegraphic communications, electric energy, oil, gas or other substances, and shall include, but not be limited to pipes, sewers, conduits, cables, valves, lines, wires, manholes, attachments and those portions of poles and their attachments below ground.

  • Water well means an excavation that is drilled, cored, bored, augered, washed, driven, dug, jetted, or otherwise constructed for the purpose of exploring for groundwater, monitoring groundwater, utilizing the geothermal properties of the ground, or extracting water from or injecting water into the aquifer. “Water well” does not include an open ditch or drain tiles or an excavation made for obtaining or prospecting for oil, natural gas, minerals, or products mined or quarried.

  • Surface impoundment or "impoundment" means a facility or part of a facility which is a natural topographic depression, man-made excavation, or diked area formed primarily of earthen materials (although it may be lined with man-made materials), which is designed to hold an accumulation of liquid wastes or wastes containing free liquids, and which is not an injection well. Examples of surface impoundments are holding, storage, settling, and aeration pits, ponds, and lagoons.

  • Underground area means an underground room, such as a basement, cellar, shaft or vault, providing enough space for physical inspection of the exterior of the tank situated on or above the surface of the floor.

  • Underground injection means the subsurface emplacement of fluids through a bored, drilled or driven well; or through a dug well, where the depth of the dug well is greater than the largest surface dimension. (See also “injection well”.)

  • Surface waters means all waters of the state as defined in G.S. 143-212 except underground waters

  • Slug loading means any pollutant, including oxygen demanding pollutants, released in a discharge at a flow rate and/or pollutant concentration as to cause interference in the POTW.

  • Project site, where applicable, means the place indicated in bidding documents.

  • 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.

  • 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.

  • drainage work means any watercourse and includes any land which is expected to provide flood storage capacity for any watercourse and any bank, wall, embankment or other structure, or any appliance, constructed or used for land drainage or flood defence;

  • Easement Area means the area of the servient lot marked on the survey-strata plan as being subject to the relevant easement; and

  • Generation Interconnection Feasibility Study means a study conducted by the Transmission Provider (in coordination with the affected Transmission Owner(s)) in accordance with Tariff, Part IV, section 36.

  • Surface water means all water which is open to the atmosphere and subject to surface runoff.

  • Plant Site (Works, Factory) means the local integration of one or more plants, with any intermediate administrative levels, which are under one operational control, and includes common infrastructure, such as:

  • Underground storage tank or “UST” means any one or combination of tanks (including underground pipes connected thereto) that is used to contain an accumulation of regulated substances, and the volume of which (including the volume of underground pipes connected thereto) is 10 percent or more beneath the surface of the ground. This term does not include any:

  • Stormwater management facility means a control measure that controls stormwater runoff and changes the characteristics of that runoff including, but not limited to, the quantity and quality, the period of release or the velocity of flow.