Code of Maryland Regulations (Last Updated: April 6, 2021) |
Title 20. Public Service Commission |
Subtitle 70. SERVICE SUPPLIED BY WATER COMPANIES |
Chapter 20.70.07. Quality of Service |
Sec. 20.70.07.02. Pressure Limits
Latest version.
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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.