P2902.7 Protection
of individual water supplies. An individual water supply shall be located and
constructed so as be safeguarded against contamination in accordance with
sections P2902.7.1 through P2902.7.8.
P2902.7.1 Well locations. A potable ground
water source or pump suction line shall not be located closer to potential
sources of contamination than the distances shown in Table P2902.7.1. In the
event the underlying rock structure is limestone or fragmented shale, the local
or State Health Department shall be consulted on well site location. The
distances in Table P2902.1 constitute minimum separation and shall be increased
in areas of creviced rock or limestone, or where the direction of movement of
ground water is from sources of contamination toward the well.
TABLE P2902.7.1
|
DISTANCE FROM SOURCES OF CONTAMINATION TO PRIVATE
WATER SUPPLIES AND PUMP SUCTION LINES |
|
Source of Contamination |
Distance (feet) (1 foot=304.8mm) |
|
Sewer |
50 |
|
Septic Tank |
50 |
|
Pasture |
100 |
|
Sewer (leaded or mechanical joints or approved
plastic) |
10 |
|
Subsurface pits |
100c |
|
Seepage pits |
100 |
|
Cesspools |
100 |
|
Barnyard |
100 |
|
Farm silo |
25 |
|
Pump house floor drain of cast iron draining to
ground surface |
2 |
P2902.7.2 Elevation. Well sites shall be
positively drained and shall be at higher elevations than potential sources of
contamination.
P2902.7.3 Depth.
Private potable well supplies shall not be developed from a water table less
than ten feet (10') (3048 mm) below the ground surface
P2902.7.4 Water-tight casings. Each well
shall be provided with a water-tight casing extending to not less than ten feet
(10') (3048 mm) below the ground surface. Casings shall extend not less than
six inches (6") (152 mm) above the well platform. Casings shall be large enough
to permit installation of a separate drop pipe. Casings shall be sealed at the
bottom in an impermeable stratum or extend several feet into the water-bearing
stratum.
P2902.7.5 Drilled or
driven well casings. Drilled or driven well casings shall be of steel or other
approved material. Where drilled wells extend into a rock formation, the well
casing shall extend to and set firmly in the formation. The annular space
between the earth and the outside of the casing shall be filled with cement
grout to a depth of not less than ten feet (10') (3048 mm) below the ground
surface. In an instance of casing to rock installation, the grout shall extend
to the rock surface.
P2902.7.6 Dug
or bored well casings. Dug or bored well casings shall be of water-tight
concrete, tile, galvanized or corrugated metal pipe extending to not less than
ten feet (10') (3048 mm) below the ground surface. Where the water table is
more than ten feet (10') (3048 mm) below the ground surface, the water-tight
casing shall extend below the table surface. Well casings for dug wells or
bored wells constructed with sections of concrete, tile, or galvanized or
corrugated metal pipe shall be surrounded by six inches (6") (152 mm) of grout
poured into the hole between the outside of the sassing and the ground and
extending not less than ten feet (10') (3048 mm) below the ground
surface.
P2902.7.7 Cover. Potable
water wells shall be equipped with an overlapping water-tight cover at the top
of the well casing or pipe sleeve such that contaminated water or other
substances are prevented from entering the well through the annular opening at
the top of the well casing, wall or pipe sleeve. Covers shall extend downward
not less than two inches (2") (51 mm) over the outside of the well casing or
wall. A dug well cover shall be provided with a pipe sleeve permitting the
withdrawal of the pump suction pipe, cylinder or jet body without disturbing
the cover. Where pump sections or discharge pipes enter or leave a well through
the side of the casing, the circle of contact shall be watertight.
P2902.7.8 Drainage. Potable water wells and
springs shall be constructed such that surface drainage will be diverted away
from the well or spring
P2903.3 Delete section P2903.3 Minimum
Pressure and substitute the following:
P2903.3 Minimum Pressure.
Minimum static pressure shall be forty (40) psi measured
before any meter, or a booster pump shall be installed after the meter
providing forty (40) psi minimum static pressure.
For private wells, forty (40) psi minimum shall be provided
at the outlet of any storage tank or pump.
Delete section P2904 and substitute the following:
R2904.1 General.
Automatic fire sprinkler if installed at the applicant's
option will be in conformance with Appendix RP.
