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 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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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).

  • Tunnelling means the construction of any tunnel beneath the natural surface of the earth for a purpose other than the searching for or winning of a mineral

  • 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.