Minnesota Administrative Rules

4725.3350 INTERCONNECTIONS AND CROSS CONNECTIONS.

No connection between a well or boring and another well, boring, water supply system, or contamination source is allowed unless the connection is:

A.

protected by an air gap as described in UPC section 603.3.1 as incorporated by part 4714.0050;

B.

protected with a backflow prevention device as specified in UPC sections 603.0 to 603.5.23.4 as incorporated by part 4714.0050;

C.

protected with a backflow prevention device as specified in parts 1505.2100 to 1505.2800 if the well is an irrigation well used for chemigation; or

D.

between wells or borings that meet the construction standards of this chapter, are used for the same purpose, and have equivalent water quality.

This part does not apply to a water distribution system after the pressure tank; however, this part does not exempt water distribution systems otherwise regulated by chapter 4714.

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; 144.122; 144.383; 157.04; 157.08; 157.09; 157.13

History:

17 SR 2773; 18 SR 1222; 33 SR 211; 45 SR 986

Published Electronically:

April 30, 2021