Drain rock definition

Drain rock means clean washed gravel or crushed rock ranging in size from three-fourths inch to two and one- half inches, and containing no more than two percent by weight passing a US No. 8 sieve and no more than one per- cent by weight passing a US No. 200 sieve.
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Drain rock means the rock or coarse aggregate used in an absorption system, sand filter, or seepage pit. Drain rock must be washed, be a maximum of 2.5 inches in diameter and larger than the orifice size unless shielding is provided to protect the orifice, and contain no more than 2 percent passing the No. 8 sieve. The material must be of sufficient competency to resist slaking or dissolution. Gravels of shale, sandstone, or limestone may degrade and may not be used.
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Drain rock means clean washed gravel or crushed rock rang- ing in size from three-fourths inch to two and one-half inches, and
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Examples of Drain rock in a sentence

  • Drain rock and dirt will be placed in the pots so Patty can put the trees in.

  • Drain rock should be separated from native soil backfill by a geotextile, such as Geotex 311 or equal.

  • Drain rock material for trench drainage and pipe support shall be washed gravel, washed crushed rock, or washed crushed stone evenly graded from one-half (1/2) to two (2) inches in size, installed to the dimensions shown on the drawings or specified by the City Engineer.

  • Drain rock does not include gravels of shale, sandstone, or limestone.

  • Drain rock may be used for backfill of over-excavation only with Department Representative’s approval.

  • Drain rock shall be completely covered with filter fabric prior to backfilling.

  • Drain rock shall be hard and durable and shall not flake or disintegrate in water.

  • Drain rock shall be placed around the base of the fire hydrant to promote adequate drainage for freeze protection.

  • Drain rock for all sumps shown on plan shall be ASTM C33 #57 rock, unless otherwise directed by the City representative.

  • Drain rock shall be placed to the lines and grades as shown on the Drawings.


More Definitions of Drain rock

Drain rock means clean washed gravel or crushed rock ranging in size from three-fourths inch to two and one-half inches, and containing no more than two percent by weight passing a US No.
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Related to Drain rock

  • Rock means the body of consolidated or partially consolidated material composed of minerals at or below the land surface. Rock includes bedrock and partially weathered rock that is hard and cannot be dug with hand tools. The upper boundary of rock is "saprolite," "soil," or the land surface.

  • Greywater means all liquid wastes from showers, baths, sinks, kitchens and domestic washing facilities, but does not include toilet wastes;

  • Basin means a groundwater basin or subbasin identified and defined in Bulletin 118 or as modified pursuant to Chapter 3 (commencing with Section 10722).

  • Bedrock means continuous rock that underlies the soil or is exposed at the surface. Bedrock is generally considered impervious, but if fractured or deteriorated, it may allow effluent to pass through without adequate treatment.

  • drain means (subject to Section 219(2) of the 1991 Act) a drain used for the drainage of one building or any buildings or yards appurtenant to buildings within the same curtilage;

  • Pipe or “Piping” means a hollow cylinder or tubular conduit that is constructed of non-earthen materials.

  • Drywell means an unlined or partially lined underground pit (regardless of geometry) into which drainage from roofs, basement floors, water softeners or other non-wastewater sources is discharged and from which the liquid seeps into the surrounding soil.

  • Hazing means committing an act against a student, or coercing a student into committing an act, that creates a substantial risk of harm to a person, in order for the student to be initiated into or affiliated with a student organization, or for any other purpose. The term hazing includes, but is not limited to:

  • Graywater means untreated wastewater that has not been contaminated by any toilet discharge, has not been affected by infectious, contaminated, or unhealthy bodily wastes, and does not present a threat from contamination by unhealthful processing, manufacturing, or operating wastes. “Graywater” includes, but is not limited to, wastewater from bathtubs, showers, bathroom washbasins, clothes washing machines, and laundry tubs, but does not include wastewater from kitchen sinks or dishwashers. Health and Safety Code Section 17922.12.

  • Tunnel means one or more holes under or through the ground, mountains, rock formations, or other natural or man-made material, including roads, railroads, pipelines, and other means of transporting vehicles, people, or goods through any such tunnel, whether located in the tunnel or, to the extent the same connects the tunnel to other similar facilities, located outside the tunnel. "Tunnel" also means any ventilation, drainage, and support facilities, toll collection facilities, administrative facilities, and other facilities necessary or convenient to the acquisition, construction, improvement, equipping, operation, or maintenance of the tunnel or to the operation of the tunnel district, whether located within or without the tunnel.

  • Watercourse means a channel in which a flow of water occurs, either continuously or intermittently.

  • Shellfish means those species of marine and freshwater

  • Water Main means (subject to Section 219(2) of the 1991 Act) any pipe, not being a pipe for the time being vested in a person other than the water undertaker, which is used or to be used by a water undertaker or licensed water supplier for the purpose of making a general supply of water available to customers or potential customers of the undertaker or supplier, as distinct from for the purpose of providing a supply to particular customers;

  • Landfill Gas means any gas derived through any biological process from the decomposition of waste buried within a waste disposal site.

  • Wildlife habitat means a surface water of the state used by plants and animals not considered as pathogens, vectors for pathogens or intermediate hosts for pathogens for humans or domesticated livestock and plants.

  • Navigable waters ’ means the waters of the United States, including the territorial sea;

  • Corner lot means a lot situated at the intersection of and abutting upon two streets, or upon two parts of the same street, the adjacent sides of which street or streets (or, in the case of a curved corner, the tangents at the street extremities of the side lot lines) contain an angle of not more than one hundred and thirty-five (135) degrees. In the case of a curved corner, the corner of the building lot shall be that point on the street line nearest to the point of intersection of the said tangents.

  • 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.

  • Green means products, materials, methods and processes certified by a “Green Authority” that conserve natural resources, reduce energy or water consumption, avoid toxic or other polluting emissions or otherwise minimize environmental impact.

  • 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.

  • Coastal waters means those waters of Long Island Sound and its harbors, embayments, tidal rivers, streams and creeks which contain a salinity concentration of at least five hundred parts per million under low flow conditions.

  • Gravel means stone screened from river sand or quarried and washed free of clay and clay coatings. Concrete aggregate designated as Class II by the department of transportation is acceptable.

  • Seepage pit means an excavation deeper than it is wide that receives septic tank effluent and from which the effluent seeps from a structural internal void into the surrounding soil through the bottom and openings in the side of the pit.