Minnesota Administrative Rules
Agency 144 - Health Department
Chapter 4725 - WELLS AND BORINGS
WELL AND BORING GENERAL CONSTRUCTION AND USE REQUIREMENTS
Part 4725.2550 - PLASTIC CASING AND COUPLING REQUIREMENTS

Universal Citation: MN Rules 4725.2550

Current through Register Vol. 49, No. 13, September 23, 2024

Subpart 1. General requirements.

Plastic casing and couplings used in the permanent construction of a well or boring must:

A. meet ASTM Standard F480-02, except that flush threaded polyvinyl chloride casing must not be used except for a monitoring well or environmental bore hole; and

B. withstand internal pressures of 200 pounds per square inch (psi).

Standard dimension ratios (SDR) and water pressure ratings (PR) at 23 degrees Celsius (73 degrees Fahrenheit) for nonthreaded polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS) plastic casing equal to or greater than 200 psi are as follows:

(1) pressure rating of PVC casing materials:

SDR PVC 1120 PVC 1220 PVC 2112 PVC 2116 PVC 2120
13.5 315 psi 315 psi 200 psi 250 psi 315 psi
17 250 psi 250 psi - 200 psi 250 psi
21 200 psi 200 psi - - 200 psi

(2) pressure rating of ABS casing materials:

SDR ABS 1316 ABS 2112
13.5 250 psi 200 psi
17 200 psi -

The sources of the pressure rating in item B are the American Society for Testing and Materials Standard D2241-04a "Standard Specifications for Poly(Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)" Table XI.I Standard Thermoplastic Pipe Dimension Ratios (SDR) and Water Pressure Rating (PR) at 73 degrees Fahrenheit (23 degrees Celsius) for Nonthreaded Plastic Pipe; and Standard D2282-99e "Standard Specification for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe (SDR-PR)," Table XI.I Standard Plastic Pipe Dimension Ratios (SDR) and Water Pressure Ratings (PR) at 73 degrees Fahrenheit (23 degrees Celsius) for Nonthreaded ABS Plastic Pipe.

Subp. 2. Additional approved fittings and couplings.

In addition to the plastic couplings approved under subpart 1, the following fittings and couplings may be used to connect a steel pitless unit or screen to plastic casing:

A. fittings or couplings with socket dimensions meeting the requirements of ASTM Standard F480-02, Table 3 and having a water pressure rating of at least 200 psi;

B. Schedule 40, slip x internal thread fittings, four-inch and smaller meeting the requirements of ASTM D2466-02; or

C. Schedule 40, slip x internal thread fittings and slip x external thread fittings, five-inch diameter meeting the requirements of ASTM D2466-02.

Subp. 3. Compliance with ANSI/NSF standard required.

All plastic casings, couplings, components, and related joining materials including solvents, cements, or primers used in the construction of a well or boring must conform with the requirements of ANSI/NSF Standard 61-2003e or the health effects portion of ANSI/NSF Standard 14-2003 and be tested as conforming by an agency certified by the ANSI. Conformance to the ANSI/NSF standard must be coded, stamped, or marked on the casings, couplings, components, and related joining materials including solvents, cements, or primers.

Statutory Authority: MS s 103I.101; 103I.111; 103I.205; 103I.221; 103I.301; 103I.401; 103I.451; 103I.501; 103I.525; 103I.531; 103I.535; 103I.541; 103I.621; 144.05; 144.12; 144.383; 157.04; 157.08; 157.09; 157.13

Disclaimer: These regulations may not be the most recent version. Minnesota may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.