AWWA Articles


AWWA solicits public comments on all proposed new AWWA Standards, and on all proposed revisions, reaffirmations, or withdrawals of existing AWWA Standards. The referenced standards project is being considered for approval and the publication of this notice begins the 45-day public comment period for AWWA and ANSI. An electronic public review copy of the proposed standard can be obtained for review during the comment period by emailing ETS Support. Comments must be submitted in writing to the AWWA contact listed below no later than the last day of the comment period specified herein. Such comments shall be specific to the section(s) of the standard under review and include sufficient detail so as to enable the reader to understand the commenter's position, concerns and suggested alternative language, if appropriate.

AWWA Comment Period closes on December 16, 2019.

Send comments to:
Stephanie Passarelli
303.347.6245 phone
303.795.7603 fax

The review copy will be edited for publication and may also be revised as appropriate based on any comments received during the public comment period. Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes.

Final publication of the standard may take several months. When it is available, a notice will be published in the official notice section of Journal - American Water Works Association. The standard becomes an effective AWWA standard on the first day of the month following such publication in Journal - American Water Works Association. 

This standard describes 3-in. through 64-in. (80-mm through 1,600-mm) flanged ductile-iron pipe with ductile-iron or gray-iron threaded flanges for potable water, wastewater, and reclaimed water service. Flanged pipe and flanges are rated for a maximum working pressure of 250 psi (1,720 kPa). However, 24-in. (600-mm) and smaller flanged joints with ductile-iron flanges may be rated for a maximum working pressure of 350 psi (2,413 kPa).

Major changes made in this revision of ANSI/AWWA C115 are as follows:

  1. Added section on Chlorine and Chlorine Degradation in the Foreword II.D. 
  2. Modified section 4.2.3 Pipe Threads and Table 1 to include Minimum Thread Length and thread taper. 
  3. Modified section 4.3 and Table 2 for Minimum Skirt Length on Table 2 and Table 3 
  4. Removed section 4.4.6 on Finished pipe/flange weight. 
  5. A new Section 4.4.6 on Pipe Wall Thickness was added. 
  6. Modified Section 4.6 Marking to remove requirement for weight marking and to indicate the location of the fabricator’s mark. 
  7. Added requirement in Section A.3 Installation to avoid damage and incompatibility.