(iv) ASTM specification F 480-90, “Standard Specification for Thermoplastic Water
Well Casing Pipe and Couplings Made in Standard Dimension Ratios (SDR)."
(v) ASTM specification D 1785-91, "Standard Specification for Poly (Vinyl Chloride)
(PVC) Plastic Pipe Schedules 40, 80, and 120."
(vi) ASTM specification D 2239-89, “Standard Specification for Polyethylene (PE)
Plastic Pipe (SIDR-PR) Based on Controlled Inside Diameter."
(vii) ASTM specification D 2241-89, “Standard Specification for Poly(Vinyl Chloride)
(PVC) Pressure-Rated Pipe (SDR Series)."
(viii) ASTM specification D 2662-89, “Standard Specification for Polybutylene (PB)
Plastic Pipe Based on Controlled Inside Diameter."
(ix) ASTM specification D 2666-89, "Standard Specification for Polybutylene (PB)
(x) ASTM specification D 2737-89, "Standard Specification for Polyethylene (PE)
(xi) ASTM specification C 150-89, "Standard Specification for Portland Cement."
(xii) ASTM specification C 595/C 595M-21, “Standard Specification for Blended
(b) American petroleum institute (API) specification 5L, 1990, "Specification for Line
Pipe," and the API “Specification for Materials and Testing for Well Cements," API
specification 10, 1990, which are available for purchase from the American Petroleum
Institute, 1220 L Street, Northwest, Washington, DC 20005.
(c) American national standards institute (ANSI)/NSF "Standard Number 60 for
Drinking Water Treatment Chemicals - Health Effects," 1988, and ANSI/NSF "Standard
Number 61 for Drinking Water System Components - Health Effects," 1990, and
ANSI/NSF "Standard Number 14 for Plastic Piping Components and Related Materials,"
1989, which are available for purchase from the NSF, 3475 Plymouth Road, P. O. Box
1468, Ann Arbor, Michigan 48106.
(2) The standards and specifications adopted by reference in subrule (1) of this rule are
available for inspection at the office of the Michigan Department of Environment, Great
Lakes, and Energy, Drinking Water and Environmental Health Division, 525 West
Allegan, PO Box 30817, Lansing, Michigan 48909-8311.
R 325.1633a Construction of wells; grouting.
Rule 133a. (1) Shale traps, cementing baskets, packers, or other devices must not be
used to suspend grout above an open annular space. Excessive development, washing,
shoveling of cuttings, or other similar activities must not be used to induce collapse of the
borehole wall or to reduce the amount of open annular space surrounding a permanent
(2) Neat cement or bentonite grout must be placed through the permanent casing or a
grout pipe from the bottom of the annular space upward to the ground surface in a
continuous operation without interruption. The density of grout flowing from the annular
space at the ground surface must be the density of the grout being pumped in.
(3) A permanent casing must be installed in a borehole that has a diameter of not less
than 2 inches larger than the nominal size of the permanent casing, except as provided in
subrule (4) of this rule and R 325.1635.