HomeMy WebLinkAbout2022-02-10-TREE-rpt RECEIVED
2022 21 l uir, � Ipim
Review of
New Tree Permit Viewpoint Implementation I OWN CLERK
LEXINGTON
Summary
At the Lexington Tree Committee meeting of January 13,the Committee reviewed the new
implementation of the Viewpoint Tree Permit. Primarily because the implementation does not support
the collection of information about individual trees in machine readable, digital format,we took the
position that the current on-line implementation of Article 33 passed at Annual Town Meeting 2021
does not reflect the intent of the article and the will of Town meeting.
Background/Motivation
In the summer/fall of 2020, a joint working group of Tree Committee and Sustainable Lexington
members developed proposals for articles for 2021 Annual Town Meeting. One of these proposed
articles was motivated by the recognition that it was difficult to collect detailed information about trees
removed under the Lexington Tree Bylaw as well as about trees remaining on the site. The only method
of obtaining this information was to review each plot plan—a time consuming and error prone process.
We realized that a solution to the problem was to require applicants for a demolition or building permit
to input itemized information about trees on the property into the Viewpoint Permit system. We also
recognized that as with building permits, before a certificate of occupancy should be issued, a second
set of information (a "post-build survey") should be input by the applicant that would reflect what
actions were actually taken on the property—trees removed and trees planted as mitigation.The post-
build survey is important because it is often the case that tree removal/replanting plans change as a
project progress.
In the course of developing our article we recognized these side benefits to the proposed approach:
• Accuracy- Less chance for error in determining fee and mitigation requirements. Instead of
calculating these based on examination of the plot plan, this information would be captured in
digital format and payments/replanting would be calculated automatically—an improvement
over the error prone method of the Tree Warden doing this in the field.
• Provision of an audit trail—Citizens often raise questions about"what happened" at a
construction site in their neighborhood. The proposed solution would allow them to view this
information easily on-line and remove their doubts without burdening the Tree Warden or Tree
Committee members with their questions.
• Applicant accountability—the applicant would be accountable for information entered as is the
case for other components of building permits (plot plans, construction plans, etc.) Thus, any
discrepancies cannot later be attributed to the Tree Warden.
With all of this in mind, after discussion with DPW personnel, Select Board members and others,we
proposed Article 33 in 2021 Town meeting. It was passed by a vote of 160 yes, 16 no, 9 abstain.
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Saturday,January 15, 2022
Article 33
Article 33 was presented at 2021 Annual Town meeting on April 14, 2021. The Select Board
unanimously supported the article, including in their position: "This information would all be collected in
the town's online permitting system,which is already a required element of the application process".
The article, motion, presentation, and video are available at Intl :„ nr.lr i„n tr n.r na....g�tr��nrir,
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For ease of reference, we highlight here the following from the presentation:
0 Type of Information Needed
• Itemized
• In machine readable form
• - and post tree removal
All of be achieved using the Town'sotine
• Point )
Annual Town Meeting 2021 5
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Sample
• Embedded into online permit
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• Simply formatted
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•
Number Keyed to Site
Survey
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• Data Inputs are digital
sortable and accessible
Annual Town Meeting 2021 6
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Saturday,January 15, 2022
In addition, as the implementation began, we also made clear our expectations for itemized input with
the following sample spreadsheet which was provided to the DPW. (For those unable to open the
spreadsheet, a screen shot is in the Appendix.)
SAMPLE BYLAW
SPREADSHEET.xlsx
Double Click to open
Implementation Deficiencies
We identified the following issues with the new implementation:
• The major deficiency is the lack of support for collecting digital, machine-readable information
about individual trees. Instead,the approach seems to have been to require additional
information to be added to the plot plan from which the extraction of data is difficult and error
prone.
The ability to collect information in digital, machine-readable form was the motivating force for
Article 33—the reason for its existence.
• The applicant is not required to input "post-build" information.
• The species of replanted trees is not input.This is required to properly determine credit if large
shade trees are planted.
• The total DBH of trees with diameters equal or greater than 24" and the impact on mitigation
required is not shown explicitly. If machine-readable information was collected, this could be
done automatically. Without this information, it must be done manually by the Tree Warden.
• Required fees and mitigation are not calculated automatically from base information about the
trees but must be done manually by the Tree Warden.
• Some terminology is imprecise (e.g., "recommended trees"vs "Recommended Large Shade
Trees list of the Lexington Tree Manual").
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Saturday,January 15, 2022
Appendix
KEY:
Information to be input by applicant,subject to confirmation by Tree Warden. Dropdown menus are provided for some categories.
Calculations based on information given
PROTECTED TREE INVENTORY
Retained and Special Replacement Inches
Site Key Location DBH(inch) Tree Species Protected(x) Removed(x) HAZARD? conditions? Removed Trees Comments
A setback 26 Maple x NO yes 26 Impacts sewer line
B setback 21 Maple x NO no 0
C setback 16 Pine x YES no 0
D setback 28Oak x NO no 112
E interior 15 Oak x NO no 0
F interior 10 Pine x NO no 0
G setback 18 Oakx NO no 0
0
0
TOTAL TO BE MITIGATED 138
PROPOSED TREE PLANTING
Inches
Caliper On Large Shade Replacement mitigation
Quantitiy Height(ft) (inch) Tree Species Tree Species list? factor credited
2 3 Oak Yes 4 24
1 4 Sweetgum yes 4 16
3 6 White Spruce yes 4 36
1 3 Redbud no 1 3
INCHES REPLANTED 79
PAYMENT TO TREE FUND
Perinch
Inches Inches Inches to be payment to
removed minus Replanted equals mitigated times Tree Fund equals Payment to Tree Fund
138 79 S9 $ 200 $ 11,800
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Saturday,January 15, 2022