(1) Wells must be
so constructed, cased, grouted, plugged, capped, or sealed as to prevent
uncontrolled surface flow, uncontrolled movement of water from one aquifer or
zone to another, contamination of ground water or surface water resources, or
other adverse impacts.
(a) For public water
supply wells connected to a community water system on or after August 28, 2003,
except those connected under a construction permit for which the Department
received a complete application before August 28, 2003, continuing protection
of the well from the sanitary hazards shall be provided during the entire
useful life of the well through one of the following means:
1. Ownership by the water supplier of all
land within 100 feet of the well;
2. Control by the water supplier of all land
within 100 feet of the well via easements, lease agreements, or deed
restrictions that appropriately limit use of the land; or
3. Wellhead protection, zoning, or other land
use regulations that appropriately limit use of all land within 100 feet of the
well.
(b) Public water
supply wells shall be located to comply with the setback distances identified
in Table I below.
|
Table I
|
|
Water Well Setback Distances for
Drinking Water Supply Wells Serving Public Water Systems or Bottled Water Plant
Wells
|
|
Hazard Type
|
Installation
|
Setback in feet (footnote)
|
|
Reuse of Reclaimed Water and Land
Application
|
Slow Rate Land Application Restricted Public
Access
|
500 (1.)
|
|
Rapid Rate Land Applications
|
500 (2.)
|
|
Overland Flow Systems
|
500
|
|
Transmission Facilities Conveying Reclaimed Water
to Restricted Public Access Slow Rate Land Application Systems, Rapid Rate Land
Applications Systems, or Overland Flow Systems.
|
100
|
|
Public Access, Residential Irrigation, or Edible
Crop Slow-Rate Land Application Systems
|
75
|
|
Transmission Facilities Conveying Reclaimed Water
to Public Access, Residential Irrigation, or Edible Crop Slow-Rate Land
Application Systems
|
75
|
|
Domestic Wastewater Residuals
|
Domestic Wastewater Residuals Land Application
Areas
|
500
|
|
Phosphogypsum Management
|
Phosphogypsum Stack Systems
|
500 (3.)
|
|
Storage Tank Systems
|
Aboveground or Underground Storage Tanks
|
100
|
|
Solid Waste Management Facilities
|
Solid Waste Disposal Facilities
|
500
|
|
Yard Trash Disposal, Storage, or Processing
|
200
|
|
Storage or Treatment of Solid Waste in Tanks
|
100
|
|
Onsite Sewage Treatment and Disposal Systems
|
Septic systems and associated transfer tanks and
drainfields
|
200
|
|
Other Sanitary Hazards
|
Specific sanitary hazards defined in
footnotes.
|
100 (4., 5.)
|
|
Feedlot and Dairy Wastewater Treatment and
Management
|
Dairy Farm Waste - Unlined Storage and Treatement,
or High Intensity Areas
|
300
|
|
Dairy Farm Waste - Land Application Areas
|
200
|
Footnotes:
1. This
distance shall be reduced to 200 feet if facility Class I reliability is
provided and shall be reduced to 100 feet if both facility Class I reliability
and high-level disinfection are provided.
2. This distance shall be reduced to 200 feet
if both facility Class I reliability and high-level disinfection are provided
and if the applicant provides reasonable assurance that applicable water
quality standards will not be violated at the point of withdrawal.
3. This distance applies only to shallow
water supply wells (i.e., potable water wells that pump from an unconfined
water table aquifer).
4. The
following examples are of sanitary hazards that pose a potentially high risk to
ground water quality and public health: active or abandoned mines; airplane or
train fueling or maintenance areas at airports and railroad yards; concentrated
aquatic animal production facilities; domestic wastewater
collection/transmission systems; drainage or injection wells, oil or gas
production wells, and improperly constructed or abandoned wells (i.e., wells
not constructed or abandoned in accordance with this chapter); fertilizer,
herbicide, or pesticide storage areas at agricultural sites, golf courses,
nurseries, and parks; graveyards; impoundments and tanks that process, store,
or treat domestic wastewater, domestic wastewater residuals, or industrial
fluids or waste and that are not regulated by the Department; industrial waste
land application areas other than those regulated by the Department; junkyards
and salvage or scrap yards; pastures with more than five grazing animals per
acre; cattle dip vats; pipelines conveying petroleum products, chemicals, or
industrial fluids or wastes; and underground storage tanks that are not
regulated by the Department, but are used for bulk storage of a liquid
pollutant or hazardous substance other than sodium hypochlorite
solution.
5. The following examples
are of sanitary hazards that pose a moderate risk to ground water quality and
public health: aboveground storage tanks that are not regulated by the
Department, but are used for bulk storage of a liquid pollutant or hazardous
substance other than sodium hypochlorite solution; fertilizer, herbicide, or
pesticide application areas that are not under the ownership or control of the
supplier of water at agricultural sites, golf courses, nurseries, and parks;
railroad tracks; stormwater detention or retention basins; and surface water
(the surface water setback does not apply to multi-family and private
wells).
(c) New public
water supply wells shall be located on their sites in such a manner that the
wells are in an area free from, or least subject to, inundation with surface
drainage and flood water; and to the extent practicable, new public water
supply wells shall be located on their sites in such a manner that the wells
are "upstream" from on-site or off-site sanitary hazards when considering the
direction of ground water movement.
(2) The well construction regulations
promulgated by the Department governing the construction of potable wells in
delineated areas in subsection
40A-3.041(1),
F.A.C., shall apply to all potable wells constructed, altered, repaired, or
abandoned in those delineated areas of the District.
