Water Supply and Regulation for Certain Wells and Boreholes
Table 1, Minimum Well and Borehole Setback Distances | |
|---|---|
Setback From | Potable Water Supply Well, Borehole, Geothermal Supply and Geothermal Return Well (feet) |
Lakes, ponds, streams or other surface waters | 25 |
Storm drains, retention basins, stabilization ponds or stormwater management facilities | 10 |
Preparation area or storage area of hazardous spray materials, fertilizers of chemicals, salt piles | 100 |
Gravity sewer lines and drains carrying domestic sewage or industrial waste | 50 |
Existing water and forced sewer buried utilities and/or utility trenches | Outside existing easement or, if no easement exists, no less than 15 feet from the utility or trench center line |
Septic tanks, aerobic tanks or holding tanks | 50 |
Subsurface sewage disposal systems, elevated sand mounds, other sewage disposal fields | 100 |
Sewage seepage pits, cesspools, privies | 100 |
Farm silos, barnyards, and fuel tanks | 100 |
Rainwater pits, ditches | 25 |
Spray irrigation sites, sewage sludge and septage disposal sites | 100 |
Dedicated public right-of-way | 20 |
Building foundations (except for buildings enclosing water wells and/or water well pumps and any other source of pollution as approved) | 30 |
Table 2, Volume of Chlorine Bleach for Shock Chlorination of Wells and Springs | ||||||
|---|---|---|---|---|---|---|
Water Depth (feet) | Well Diameter (cups*) | |||||
6 inches | 8 inches | 10 inches | 24 inches | 32 inches | 36 inches | |
10 | 1 | 1 | 2 | 12 | 16 | 24 |
20 | 1 | 2 | 4 | 20 | 32 | 40 |
30 | 2 | 4 | 6 | |||
40 | 2 | 4 | 8 | |||
60 | 4 | 6 | 12 | |||
80 | 4 | 8 | 14 | |||
100 | 6 | 10 | 16 | |||
150 | 10 | 16 | ||||
NOTES: | |
* | Cup (c) is defined as eight liquid ounces. |
Water Supply and Regulation for Certain Wells and Boreholes
Table 1, Minimum Well and Borehole Setback Distances | |
|---|---|
Setback From | Potable Water Supply Well, Borehole, Geothermal Supply and Geothermal Return Well (feet) |
Lakes, ponds, streams or other surface waters | 25 |
Storm drains, retention basins, stabilization ponds or stormwater management facilities | 10 |
Preparation area or storage area of hazardous spray materials, fertilizers of chemicals, salt piles | 100 |
Gravity sewer lines and drains carrying domestic sewage or industrial waste | 50 |
Existing water and forced sewer buried utilities and/or utility trenches | Outside existing easement or, if no easement exists, no less than 15 feet from the utility or trench center line |
Septic tanks, aerobic tanks or holding tanks | 50 |
Subsurface sewage disposal systems, elevated sand mounds, other sewage disposal fields | 100 |
Sewage seepage pits, cesspools, privies | 100 |
Farm silos, barnyards, and fuel tanks | 100 |
Rainwater pits, ditches | 25 |
Spray irrigation sites, sewage sludge and septage disposal sites | 100 |
Dedicated public right-of-way | 20 |
Building foundations (except for buildings enclosing water wells and/or water well pumps and any other source of pollution as approved) | 30 |
Table 2, Volume of Chlorine Bleach for Shock Chlorination of Wells and Springs | ||||||
|---|---|---|---|---|---|---|
Water Depth (feet) | Well Diameter (cups*) | |||||
6 inches | 8 inches | 10 inches | 24 inches | 32 inches | 36 inches | |
10 | 1 | 1 | 2 | 12 | 16 | 24 |
20 | 1 | 2 | 4 | 20 | 32 | 40 |
30 | 2 | 4 | 6 | |||
40 | 2 | 4 | 8 | |||
60 | 4 | 6 | 12 | |||
80 | 4 | 8 | 14 | |||
100 | 6 | 10 | 16 | |||
150 | 10 | 16 | ||||
NOTES: | |
* | Cup (c) is defined as eight liquid ounces. |