New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Dw - Drinking Water Programs
Chapter Env-Dw 500 - OPERATION AND MAINTENANCE
Part Env-Dw 505 - BACKFLOW PREVENTION
Section Env-Dw 505.07 - Replacement of Backflow Prevention Devices

Universal Citation: NH Admin Rules Env-Dw 505.07

Current through Register No. 13, March 27, 2025

Any existing backflow prevention device shall be allowed to continue in service unless:

(a) The supplier considers the condition of any portion of the backflow prevention device to be such that replacement should be made; or

(b) The degree of hazard classification has changed so as to supersede the effectiveness of the present backflow prevention device currently in use.

(See Revision Note at part heading for Env-Dw 505) #10615, eff 6-1-14

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