La. Admin. Code tit. 56, § I-315 - Location in Relation to Possible Sources of Contamination

A. The horizontal distance between any water well and any possible sources of contamination shall be as great as possible but in no case less than the following minimum distances.

Possible Sources of Contamination	Minimum Distance (in feet)
Septic Tanks	50
Storm or Sanitary Sewer	501
Cesspools, outdoor privies, oxidation ponds, subsurface absorption fields, pits, etc.	1002
Sanitary landfills, feed lots, manure piles, solid-waste dumps and similar installations	100
Another water well	253
Drainage canal, ditch, stream, pond or lake	504
1 This distance may be reduced to 30 feet if the sewer is of cast iron with leaded joints or schedule 40 plastic pipe with water-tight joints. 2 For domestic water wells, this distance may be reduced to 50 feet. 3 This minimum distance requirement does not take into consideration the effects of interference from pumping nearby wells in the same aquifer. 4 Horizontally measured from the water edge to the well at the highest water level which may have occurred in a 10 year period.

Notes

La. Admin. Code tit. 56, § I-315

Promulgated by the Department of Transportation and Development, Office of Public Works, LR 1:249 (May 1975), amended LR 11:953 (October 1985), repromulgated by the Department of Transportation and Development, Office of Public Works, LR 31:942 (April 2005), amended by the Department of Natural Resources, Office of Conservation, LR 37:3528 (December 2011).

AUTHORITY NOTE: Promulgated in accordance with R.S. 38:3091-R.S. 38:309.8.