R 325.1626
R 325.1626 Construction of wells; steel casing.
Cite as Mich. Admin. Code R 325.1626
Rule 126. (1) Steel pipe that is used as permanent well casing shall be new pipe that is
manufactured in compliance with the standards of ASTM specification A 53-90b, A 106-
91, or A 589-89a or in compliance with the standards of API specification 5L-90. The
specifications are adopted by reference in R 325.1610.
(2) Steel pipe that is used as permanent well casing shall be at least standard weight or
schedule 40 through 10 inches inside diameter. Larger diameter pipe shall be at least
standard weight. Weights and dimensions of standard weight or schedule 40 pipe are set
forth in ASTM specification A 53-90b, A 106-91, and A 589-89a, API 5L-90 specification,
and in table 1.
Table 1
Steel Well Casing
Pipe Weights and Dimensions*
Nominal
Weight
Lbs.
Per Ft. Wall
Outside
Inside
Pipe Size
Weight/
Plain
Threaded/ Thickness
Diameter
Diameter
(Inches)
Schedule End
Couplings (Inches)
(Inches) (Inches)
1 1/4 Std./40 2.27 2.30 .140 1.660 1.380
1 1/2 " 2.72 2.75 .145 1.900 1.610
2 " 3.65 3.75 .154 2.375 2.067
2 1/2 " 5.79 5.90 .203 2.875 2.469
3 " 7.58 7.70 .216 3.500 3.068
3 1/2 " 9.11 9.25 .226 4.000 3.548
4 " 10.79 11.00 .237 4.500 4.026
5 " 14.62 15.00 .258 5.563 5.047
6 " 18.97 19.45 .280 6.625 6.065
8 " 28.55 29.35 .322 8.625 7.981
10 " 40.48 41.85 .365 10.750 10.020
12 Std. 49.56 51.15 .375 12.750 12.000
14 " 54.57 57.00 .375 14.000 13.250
16 " 62.58 65.30 .375 16.000 15.250
18 " 70.59 73.00 .375 18.000 17.250
20 " 78.60 81.00 .375 20.000 19.250
24 " 94.62 - .375 24.000 23.250
* Dimensions and tolerances are listed in the specifications adopted in R 325.1610.
(3) Each length of steel pipe that is used as permanent well casing shall be legibly marked,
by the manufacturer, with all of the following information:
(a) The name of the manufacturer.
(b) The kind of pipe (continuous welded, electric resistance welded, or seamless).
(c) The weight or schedule.
(d) The nominal or outside diameter.
(e) The specification number.
(f) The length.
(g) The heat or lot number.