[Amended 4-2-1990]
In addition to the above, the following shall be submitted as a part
of the subdivision plan as a separate map and supporting data:
A. At least one test hole per lot, or more if there appears
to be considerable variation in subsurface conditions, shall be dug to determine
soil conditions for drainage. Seepage tests, made in accordance with the procedure
recommended by the State Health Department, will be required in areas served
by subsurface sewage disposal systems. The statement of a registered professional
civil engineer or sanitary engineer showing results of these tests and soil
conditions shall be attached.
B. The location of all existing and proposed sanitary and
stormwater sewers, catch basins, manholes, bridges and culverts. Invert elevations
of all drainage structures shall be shown.
C. Methods of proposed sanitary sewage, methods of stormwater
drainage into existing sewers or into existing natural watercourses and methods
of supplying water.
D. Final street plan with profiles drawn in ink on plan
profile paper at scales of one inch equals 40 feet horizontally and one inch
equals four feet vertically, one print on a stable transparent material and
four black-line prints on white paper.
E. Contours in sufficient detail to show general topography,
watercourses and drains. In general, contours shall be shown at no less than
two-foot intervals, but in the case of relatively level land, the Commission
may require contours of one-foot intervals. If grading of lots is to be carried
out by the applicant, finished grades shall be shown. Slopes of 25% or greater
shall be specifically delineated.
F. Wooded areas as indicated by foliage lines.
G. Flow-line elevations for all brooks shall be given at
hundred-foot stations, and the location and size of all culverts shall be
given.
H. The location of all soils classified as unstable by the
United States Soils Conservation Service shall be identified, and the application
shall specifically address areas subject to unusual erosion hazards due to
such unstable soils or due to excessive stream velocity, lack of topsoil and
vegetation or other causes.
I. Recognized landmarks, including stone walls, specimen
trees (those exceeding 30 inches in caliper at the ground line) and other
cultural and historical monuments.
J. Cultural and archaeological sites, including but not
limited to those listed by the Connecticut Historical Commission.
K. Land areas along ridge lines, defined as areas lying
within a distance of 1,000 feet on each side of the boundary line of a subregional
watershed as defined on maps prepared by the Natural Resources Division, Connecticut
Department of Environmental Protection.
If more than one sheet is required to show the entire subdivision, one
print on a stable tracing material and four black-line prints on white paper
of a map showing the entire street system at a scale of one inch equals 100
feet shall also be submitted.
Where all land proposed for development or land under ownership of an
applicant is not included in the proposal, a master development sketch shall
accompany the original submission. This sketch, at a scale of not less than
one inch equals 100 feet, shall show proposed rights-of-way and lot layout.
Additional information may be required by the Commission where any part of
the subdivision would be affected by development of another part. Sections
in the proposed order of development shall be labeled with Roman numerals,
and each section shall be applied for and processed individually.