314 CMR, § 20.11
All applications for a permit to construct, install, modify, operate or maintain a reclaimed water system in accordance with 314 CMR 20.00 shall include an Engineering Report, a Reuse Management Plan, and, if the applicant proposes that the reclaimed water by used by one or more persons other than the permittee, Service and Use Agreement(s). For permit renewals and modifications, the applicant may update existing documents. All documents other than the Service and Use Agreement(s) shall be completed in accordance with relevant Department design guidelines and shall be prepared, stamped and signed by a Massachusetts Registered Professional Engineer with a concentration in civil, sanitary or environmental engineering, and shall be accompanied by a Certification Statement that the documents have been prepared in accordance with Department standards and signed by the Massachusetts Registered Professional Engineer. The documents shall be consistent with 314 CMR 20.00. If reclaimed water is proposed to be used within the Zone II or Interim Wellhead Protection Area of a ground water source of potable water for a public water system, the applicant shall notify the public water system in writing by certified mail, and include a copy of said notice with the application.
314 CMR, § 20.11