HomeMy WebLinkAboutconcom_filing_plan_req_0Town of Lexington
LAND USE, HEALTH, AND DEVELOPMENT DEPARTMENT
CONSERVATION OFFICE
Karen M. Mullins Tel: (781) 698-4501
Conservation Administrator
kmullins@lexingtonma.gov
Conservation Commission Filing Procedures
Permitting Plan(s) Required Format and Information
I. Plan/s (Required Format and Information)
A. Plan/s
1. Existing Topographic Plan prepared by a professional land surveyor using
instrument survey based on NAVD 88 benchmarks showing existing conditions.
2. Site Plan prepared by a Professional Land Surveyor and Professional Civil
Engineer (if drainage and other civil details applicable), and Registered Landscape
Architect (if landscaping is applicable), showing details of proposed project.
3. Cover sheet with index
B. Format and Information
1. Scale - no smaller than 1" = 50' and include bar scale
2. Title Block - located in the right-hand corner or on the right side, shall incorporate
Plan Title, name and address of the project; name of the property owner or
applicant; name, address and imprint of the professional consultant responsible for
the preparation of each sheet; date; and sheet title and number and revision dates (if
applicable).
3. Ensure the Plans are uploaded as PDFs or TIFs and rotated to the correct
orientation. One plan should be in black and white/minimal colors and one plan
must be shaded with color to present to the Commission.
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4. Other - north arrow, graphic scale, a legend defining signs and symbols used on
the plan and not otherwise explained; revision date chart;
5. Plan Graphics - existing conditions screened or lighter with topographic
contours shown as dashed lines; and proposed conditions clearly differentiated
from the existing conditions by use of heavier or bold lines with topographic
contour changes shown in solid lines. The contour lines must correspond to
known elevations on existing benchmarks and to the existing and proposed
grades of streets.
6. Delineate the following, if applicable:
a) Wetland boundary showing flags numbered to correspond with numbered flags
installed at the site; b) Mean Annual High Water boundary; c) 100 year flood
elevation; d) proposing and existing grades marking 25, 50 and 100 foot buffers;
e) construction access in100-foot inner and 200-foot outer riparian zones; f)
trees greater than 6” dbh; g) the erosion control barrier; h) the limit-of-work i)
recorded easements or restrictions on or crossing the property and metes and
bounds of proposed conservation restrictions noting the total restricted area; j)
streets abutting the project, their grades and the utilities to which connections
are proposed, k) abutting property owners and map and parcel id; l) location of
ground water borings and the soil profile resulting from borings; m) dewatering
7. Project Details of following (if applicable):
a) Utility Connections (water, gas, electrical, sewer); b) Drainage details for any
proposed stormwater management system to mitigate stormwater runoff to
comply with Section 5. Performance Standard 5(2) and 5(6) Increase in Runoff
in the BY-LAW Rules; c) erosion control barriers; d) existing and proposed
grades; e) Construction access; and f) dewatering
8. Elevations or sections of buildings, retaining walls or other structures.
9. Landscape Plan or Buffer Zone Enhancement Plan to detail the approach to
protect/enhance the minimum 25-foot critical edge along the wetlands; include
do not disturb bands and drainage infrastructure; and Planting Plan with size,
quantity and type
10. Stamped and Signed Certification by the professional land surveyor, and
professional civil engineer (if applicable), and registered landscape architect (if
applicable).