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By 1972 Hunter Plastics employed 364 staff. [8] Throughout the 1970s Hunter was very successful - at the time PVCu was displacing traditional materials cast-iron gutters and soil pipes, lead waste pipes, earthenware soil pipes and so the business grew every year as traditional materials lost market share.
Soil vapor extraction (SVE) is a physical treatment process for in situ remediation of volatile contaminants in vadose zone (unsaturated) soils (EPA, 2012). SVE (also referred to as in situ soil venting or vacuum extraction) is based on mass transfer of contaminant from the solid (sorbed) and liquid (aqueous or non-aqueous) phases into the gas phase, with subsequent collection of the gas phase ...
The most favorable conditions for soil nailing are as follows: The soil should be able to stand unsupported one to two meters high for a minimum of two days when cut vertical or nearly vertical. Also, all soil nails within a cross section should be located above the groundwater table. If the soil nails are not located above the groundwater ...
The least interruption of soil structure and soil fauna happens when a type of drilling machine is used which is outfitted to be able to "direct drill"; "direct" referring to sowing into narrow rows opened by single teeth placed in front of every seed-dispensing tube, directly into/ between the partly composted remains (stubble) of the last ...
Corps of Engineers Wetland Delineation Manual, Technical Report Y-87-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss. Url last accessed 2006-04-16; Soil Conservation Service. 1994. National Food Security Act Manual. Title 180. USDA Soil Conservation Service, Washington, D.C. Soil Survey Staff. 1999.
FM 100–5, Operations (with included Change No. 1) 29 April 1977 [20] This manual supersedes FM 100–5, 6 September 1968, including all changes. Bernard W. Rogers: INACTIVE: FM 100–5: FM 100–5, Operations: 1 July 1976 [21] This manual supersedes FM 100–5, 6 September 1968, including all changes. Fred C. Weyand: INACTIVE: C1, FM 100–5
A simple soil moisture sensor for gardeners. Soil moisture sensors measure the volumetric water content in soil. [1] Since the direct gravimetric measurement of free soil moisture requires removing, drying, and weighing of a sample, soil moisture sensors measure the volumetric water content indirectly by using some other property of the soil, such as electrical resistance, dielectric constant ...
According to The New York Times, the Army has started to "wikify" certain field manuals, allowing any authorized user to update the manuals. [4] This process, specifically using the MediaWiki arm of the military's professional networking application, milSuite, was recognized by the White House as an Open Government Initiative in 2010.