TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 906 PRIVATE SEWAGE MOUND CODE
SECTION 906.20 DEFINITIONS


 

Section 906.20 Definitions

 

"Absorption Area" means the area of coarse aggregate in the absorption bed or trenches in a mound.

 

"Basal Area" means the area of natural soil under a mound which is effective in absorbing effluent.

 

"Depression" means an area that is sunk below its surroundings.

 

"Dosing" means the application of sewage under pressure to a sewage disposal system at constant intervals or in constant amounts per application.

 

"Drainageway" means a natural or artificial channel for the discharge of surface water through a given tract of land or region.

 

"Flood plain" means the land bordering a stream, built up of sediments from overflow of the stream and subject to inundation when the stream is at flood stage.

 

"Mound" means a soil absorption sewage treatment system that is elevated above the natural ground surface in a suitable fill material as defined in 906.40.

 

"Perched Water Table" means groundwater which is trapped above a normal water table by an impervious formation.

 

"Percolation Rate" means the downward movement of water through a saturated soil.

 

"Permeable Soil" means soil which has a percolation rate between 18 and 180 minutes. (See Appendix A, Illustration G of the Private Sewage Disposal Code for meaning of percolation rate and percolation test procedure.)

 

"Shallow Permeable Soil" means pervious soil over creviced or porous bed rock, 5 feet or less in thickness.

 

"Slowly Permeable Soil" means soil having a percolation rate of between 180 and 360 minutes.