LAC 56:I.315
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 |
| 1This 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. 2For domestic water wells, this distance may be reduced to 50 feet. 3This minimum distance requirement does not take into consideration the effects of interference from pumping nearby wells in the same aquifer. 4Horizontally measured from the water edge to the well at the highest water level which may have occurred in a 10 year period. |
AUTHORITY NOTE: Promulgated in accordance with R.S. 38:3091-R.S. 38:309.8.
HISTORICAL NOTE: 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).