310 CMR 15.106
Landscape Position
(1) The topography of the proposed disposal area shall be identified and recorded on the
evaluation form. Particular attention shall be given to recording features which may adversely
affect the functioning of an on-site system. These include:
(a) bedrock outcrops or areas with many stones and/or boulders;
(b) steep slopes (greater than 3:1, horizontal to vertical) exhibiting signs of unstable soil
such as landslide scars, slump blocks, tree trunks or shrubs bending downslope;
(c) highly disturbed ground as indicated by such features as remnants of foundations or
pavements or buried construction debris;
(d) low-lying coastal areas exhibiting signs of tidal inundation or tidal marsh vegetation;
(e) low-lying inland areas exhibiting signs of influence of surface water runoff, ponding or
freshwater wetland vegetation;
(f) flat low-lying areas adjacent to surface water bodies and streams; and
(g) the boundary of a velocity zone.