N.H. Code Admin. R. Env-Wq 704.09
Force mains shall be tested in accordance with AWWA C600-23, “Installation of Ductile-Iron Mains and Their Appurtenances” standard, available as noted in Appendix B, at a pressure equal to the greater of 150 percent of the design operating total dynamic head or at least 100 psi.
Source. (See Revision Note at chapter heading for Env-Wq 700) #8590, eff 3-25-06; ss by #10693, eff 10-15-14; ss by #14258, eff 7-1-25, EXPIRES: 7-1-35