Rhode Island Code of Regulations › Title 510 - Building Code Commission › Chapter 00 - N/A › Subchapter 00 - N/A › Part 2 - RISBC-2 Rhode Island State One amp; Two-Family Dwelling Code › Section 510-RICR-00-00-2.23 - Chapter 29

Current through June 14, 2024
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