# COMAR Title 20 — Public Service Commission

## Subtitle 70 — Service Supplied by Water Companies

### Chapter 07 — Quality of Service

#### Regulation .02 Pressure Limits.

*COMAR 20.70.07.02*

A. Allowable Pressures. Under normal conditions of use of water, the pressure at a customer's service connection shall be:

  (1) Not less than 25 psig; and

  (2) Not more than 125 psig.

B. Exceptions to Pressure Requirements. Pressure outside the limits specified will not be considered a violation when the variations:

  (1) Arise from the action of the elements;

  (2) Are infrequent fluctuations not exceeding 5 minutes' duration;

  (3) Arise from service interruptions;

  (4) Are from causes beyond the control of the utility; or

  (5) Arise from variations in service elevations which are local and which can be controlled in a satisfactory manner.