Vertical separation

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In Ontario the vertical separation between a practice and the water table or bedrock is frequently cited as 1 meter. This comes from the

"The depth to bedrock should be greater than or equal to 1 metre below the bottom of the perforated pipe storage media to ensure adequate drainage/hydraulic potential"Cite error: Closing </ref> missing for <ref> tag

[1]


[2]


[3]


[4]


[5] in turn citing [6]

  1. ↑ Karathanasis, A D, T G Mueller, B Boone, and Y L Thompson. “Nutrient Removal from Septic Effluents as Affected by Soil Thickness and Texture.” Journal of Water and Health 4, no. 2 (June 2006): 177–95. http://www.ncbi.nlm.nih.gov/pubmed/16813011.
  2. ↑ Stall, Christopher, Aziz Amoozegar, David Lindbo, Alexandria Graves, and Diana Rashash. “Transport of E. Coli in a Sandy Soil as Impacted by Depth to Water Table.” Journal of Environmental Health 76, no. 6: 92–100. Accessed October 23, 2018. http://www.ncbi.nlm.nih.gov/pubmed/24645419.
  3. ↑ RI Department of Environmental Management. “Section 5.5.1 and 5.5.4 RISDISM Guidance -- Filtering Systems: Separation to Seasonal High Groundwater Table,” 2016.
  4. ↑ Ontario. “F-6-1 Procedures to Govern Separation of Sewers and Watermains | Ontario.Ca,” 2016. https://www.ontario.ca/page/f-6-1-procedures-govern-separation-sewers-and-watermains.
  5. ↑ Rathfelder, K., and M. Wei. “Underground Stormwater Infiltration: Best Practice for Protection of Groundwater Resources in British Columbia,” 2014. http://www.env.gov.bc.ca/wsd/plan_protect_sustain/groundwater/library.html
  6. ↑ Washington St.ate Department of Ecology. “Guidance for UIC Wells That Manage Stormwater,” 2006.

The upper surface of the zone of saturation, except where the surface is formed by an impermeable body.

Subsurface water level which is defined by the level below which all the spaces in the soil are filled with water; The entire region below the water table is called the saturated zone.

Natural or artificial means of intercepting and removing surface or subsurface water (usually by gravity).

A strain of bacteria found in the gut and waste products of animals. Some strains of this bacterium can be harmful to humans or animals if consumed. Food or water can become contaminated with E.Coli where unsanitary conditions exist.

The slow movement of water into or through a soil or drainage system.

Penetration of water through the ground surface.

Surface runoff from at-grade surfaces, resulting from rain or snowmelt events.

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