Conservation Commission - Minutes - 08/27/2020

MEETING MINUTES
Conservation Commission REE ‘ HESORD
August 26, 2020
6:30 PM 2020SEP-3 AM 10: 3]
Zoom Remote Access Only .
Members Present: Dave Lersch, Tali Maidelis, Richard Muckle and Wade Thomas
(1 Vacancy) i
Members Absent: Geneva Renegar and Michael Stankov (notified)
Alternates Present: Julie Wainscott (1 Vacancy)
Staff Present: Maureen FitzGerald, Environmental Planner
Katrina Kotfer, Recording Secretary
1. CALL TO ORDER AND APPOINTMENT OF ALTERNATES
R. Muckle called the meeting to order at 6:30 p.m. Julie Wainscott was seated for G. Renegar.
2. APPROVAL of the August 19, 2020 MEETING MINUTES
Motion: Motion made by T. Maidelis, second by D. Lersch to approve the August 19,
2020 meeting minutes.
Vote: 5-0
3. APPLICATION REVIEW
C-20-14 14B & 18 Shore Road — Driveway Construction — David C. Mortimer, Owner &
Applicant, Killingly Engineering Associates, Agent: Review Draft Permit
Motion: Motion made by D. Lersch, second by W. Thomas to approve the draft permit.
Vote: 5-0
C-20-15 140 Waterford Parkway South — Concrete Products Manufacturing and Outdoor
Storage — Fabcon Precast, Applicant, Mathon Fund I LLC, Owner, Loureiro, Agent
Seamus Moran, PE, Clint Brown, PE and Jeff Prince were available at the meeting.
T. Maidelis inquired what measures are proposed to control particulate emissions from the
building. J. Prince noted there is no effluent from the building, concrete mixing occurs within
the building. HEPA filters and dust collectors are directly connected to the cement mixers and
silos.
Commission members asked about the information in the geotechnical report submitted. J.
Prince summarized the on-site gravel was found suitable for building construction, no
groundwater encountered except in some of the deeper excavation areas. The investigation did
not find any outstanding issues on the property.
D. Lersch voiced concerns with the increase in truck traffic on Waterford Parkway South from
the facility and potential impacts to Jordan Brook water quality from increased pollutants on the
roadway and in the roadway run-off. J. Prince estimated 30-50 trucks per day would enter and
exit the site. He noted that Parkway South crosses Jordan Brook on the adjacent property at
Coca Cola.
D. Lersch also questioned the impacts of site stormwater discharge to flows in Jordan Brook and
potential channel erosion. S. Moran replied that there is no discharge from the basins up to the
10-yr storm event and less than 1 cfs discharge up to the 25-yr storm event. Staff requested

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August 27, 2020
p. 2 of 3
the capacity of the basins and the discharges for each modeled storm event be summarized in a
table for the Commission to review.
R. Muckle asked if the perimeter road in the storage yard is paved or un-paved and what surface
treatment is proposed to control dust and sediment from the storage yard. S. Moran replied the
perimeter road is paved and the storage yard surface is gravel, using the on-site gravel deposits.
R. Muckle noted crushed stone to be better for controlling sediment. J. Prince said the
geotechnical engineer is reviewing this with a potential upper layer of trap-rock, but the cost may
exceed a million dollars.
Staff requested the response from the Natural Diversity Database be submitted to the application
record and asked if the recommended mitigation measures for protecting turtles and ribbon snake
species were going to be incorporated into the site plan. Follow-up reports from the project
scientists were requested addressing how the proposed plan meets their recommended actions.
Items to address include the location and extent of the conservation area, the impact of the
project on the identified vernal pool area east of the site, the impacts of the site development on
the Jordan Brook fishery, and what activity is proposed on the east side of Jordan Brook riparian
corridor.
Staff questioned if the site had been evaluated for past pollution and the status of the landfill.
J. Prince noted that a Phase I assessment was completed by Haley & Aldridge and it indicated
that there are no outstanding issues. Staff requested that the executive summary from the report
be submitted. Staff asked if placing fill on the closed landfill would be allowed, as the eastern
fill slope is extending into the western portion of the landfill.
An overlay of the site development on an aerial photograph of the project area was requested to
help the Commission during site walk and evaluation of application materials.
S. Moran asked what the statutory requirements are for a hearing, voting and determination by
the Commission. Staff noted the application was received on August 6", and the Commission
has 65 days. The Commission has not received a petition from the public demanding a public
hearing on the application. The Commission has to determine if the project is a significant
impact activity thereby requiring a public hearing or if the activity is in the public interest to hold
ahearing. S. Moran stated if a hearing is required, the applicants would like to hold one before
the 65 days.
R. Muckle said the Commission will be diligent in research and discussions of the proposal and
process the application as expeditiously as possible.
The application is continued to the next regularly scheduled meeting on Thursday, September 10,
2020.
4, NEW APPLICATIONS
C-20-16 170 Rope Ferry Road — Two Lot Re-subdivision, St. Paul Catholic Church
Corporation, Owner & Applicant, Florek Surveying, LLC Agent
Brian Florek, LS was available for participation. B. Florek reviewed the property, the owner is
looking to subdivide the existing property into two parcels. The property is an old quarry area.

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August 27, 2020
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The proposed footprint for the house and septic system are shown and are conceptual.
Staff noted that the site contains activity within the 100 ft. upland review area and therefore must
come before the wetlands agency. R. Muckle noted that he will recuse himself from voting on
this application. The Commission accepted the application for review.
5. VIOLATIONS
No violations were reported.
6. CONSERVATION COMMISSION TASKS
The Commission discussed resuming work on establishing values and a matrix to evaluate open
space land.
7. CORRESPONDENCE
No correspondence was discussed.
8. PAYMENT OF BILLS
No bills were received.
9. ADJOURNMENT
Motion: Motion made by J. Wainscott, second by T. Maidelis, to adjourn at 7:24 p.m.
Vote: 5-0
Respectfully Submitted,
Katrina Kotfer
Recording Secretary