Appendix A. Signs shall be in English and any additional locally employed language.

(2) All reclaimed water plumbing and out-of-sight fixtures shall be color-coded purple to identify the source of the water as being reclaimed water. (a) All reclaimed water piping and appurtenances shall be colored purple and embossed or integrally stamped or marked: "NOTICE: RECLAIMED WATER - DO NOT DRINK". The warning shall be stamped on opposite sides of the pipe and repeated every three feet or less. (b) Other pipe and construction warning markings may be acceptable to the Department provided the colors and messages are consistent with 314 CMR 20.04(2)(a). (3) The permittee shall comply with 314 CMR 20.04(1) and (2) at all reuse sites under the direct control of the permittee. For sites not under the direct control of the permittee, the Service and Use Agreement shall require compliance with 314 CMR 20.04(1) and (2), and the permittee shall enforce this requirement. (4) A person with reclaimed water piping and appurtenances that were installed prior to March 20, 2009 and do not meet the requirements of 314 CMR 20.04(2) may request a waiver from these requirements on the ground that it is not practicable to comply, because the pipes are not reasonably accessible.