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JANE SWIFT
Governor
COMMONWEALTH OF MASSACHUSETTS
EXECUTIVE OFFICE OF ENVIRONMENTAL AFFAIRS
DEPARTMENT OF ENVIRONMENTAL. PROTECTION
ONE WINTER STREET, BOSTON, MA 02108 617-292-5500
BOB DURAND
Secretary
LAUREN A. LISS
Commissioner
GUIDELINES FOR DESIGN AND INSTALLATION OF IMPERVIOUS BARRIERS AND
SLOPE STABILIZATION FOR TITLE 5 SYSTEMS
Effective date: March 1, 2002
Policy/SOP/Guideline #: BRP/DWM/WPeP/G02-1
Program Applicability: BRP, Watershed Permitting,
Title 5
Approvedby: [signed]
Cynthia Giles,
Assistant Commissioner, BRP
Supersedes Policv/SOP/Guideline• NONE
Regulation Reference: 310 CMR 15.211(1)4.
310 CMR 15.255
PURPOSE:
These guidelines supplement Title 5, 310 CMR 15.255, which addresses systems
constructed in fill. Specifically, this guidance contains design and installation criteria for
impervious barriers, and slope stabilization when either is required by 310 CMR 15.255 in
conjunction with a system constructed in fill. Additionally, this guidance supplements 310
CMR 15.211(1)[4], which requires slope stabilization for certain soil absorption systems
adjacent to naturally occurring downhill slopes.
APPLICABILITY:
This document is a guide for Massachusetts Registered Professional Engineers (PE)
and Massachusetts Registered Sanitarians (RS) who design Title 5 systems using
impervious barriers, and for PE's that design impervious barriers using retaining walls, or
structural barriers such as concrete retaining walls, and for boards of health and DEP staff
who review applications for Title 5 systems and who observe and inspect the installation of
Title 5 systems.
This information is available in alternate format by calling our ADA Coordinator at (617) 574-6872.
DEP on the World Wide Web: http://www.state.ma.us/dep
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