Conservation Commission - 1176 (10/23/2025)

FIFTEEN ROPE FERRY ROAD 
WATERFORD, CT 06385-2886
Date: 
September 8, 2025
To: 
Waterford Conservation Commission
From: Maureen FitzGerald, Environmental Planner
Re: 
Inland Wetland Application #C 25-09 — 152 Cross Road
Application Review Comments
Proposed Regulated Activity:
The activity is associated with construction of a 3,600 sq. ft. commercial building, associated
paved parking and access drive and a stormwater management basin on 152 Cross Road. The
site is a 1.447 acre parcel on the west side of Cross Road and contains 0.53 acres of wetland at its
western end. An existing commercial building and paved parking area occurs at the eastern end
of the parcel.
The proposed development location is on an existing fill deposit approximately 20-30 feet higher
than the adjacent inland wetland area. The proposed limits of clearing and grading do not disturb
the fill slope embankment.
Regulated activities include:
= 
Excavation and grading within @ 3,600 sq. ft. of upland review area to construct a
proposed stormwater treatment basin and a portion of a paved parking area.
= 
Grading and construction activity upgradient of inland wetlands to construct a 3,600 sq.
ft. building and 4,100 sq. ft. of paved surface area.
= 
Discharge of treated stormwater run-off towards inland wetlands.
Wetland Resources:
The on-site wetland is located within the upper watershed area of Stony Brook and is part of a
large forested wetland complex. The Stony Brook Watershed Management Plan identifies this
wetland as SB-70-1, a red maple forested community supported by shallow groundwater and
surface run-off and designated as a Critical Wetland System in the watershed. The designation
refers to wetland resources in the watershed that represent a diversity of wetland community
types and perform key functions.
The management plan recommendations for this wetland include preserving forested buffer,
protect water quality, maintain hydrologic baseflow and manage for invasive species along

wetland margins. A 100 ft. upland vegetated buffer is suggested. Due to historic fill activity on
the property, existing site conditions do not support a forested upland buffer.
Application Review Comments:
The proposed development does not involve direct impacts to the downgradient wetland
resource. The activity within the upland review area is predominantly for construction of a
stormwater treatment basin to collect, infiltrate and attenuate stormwater run-off and associated
pollutants. The current site condition does not include stormwater control or treatment measures.
The drainage report indicates the design controls peak run-off rates for the 2, 10 and 100 year
design storm event and the basin provides storage for capture of the water quality volume from
the site development in accordance with the CTDEEP Stormwater Quality Manual.
The existing fill slope embankments are not disturbed by the proposed site construction. The fill
is composed of boulders, soil and construction debris as evidenced by the presence of concrete,
asphalt and metal debris and supports a vegetated cover. The stormwater basin is proposed to
serve as a temporary sediment trap during construction. Installation and maintenance of erosion
and sediment control measures during the site construction are anticipated to protect the
embankment stability and the receiving wetland from sediment impacts.
To facilitate maintenance of the stormwater basin, it is recommended the stormwater basin
design incorporate a sediment forebay and a sufficient access path for future maintenance
requirements. The dumpster enclosure may need to be re-adjusted to allow for this access.
The final construction plan should include a detail of the proposed type and depth of basin
substrate and bioretention mixture layers and an inspection and maintenance chart for the
stormwater collection system and treatment components.
Submitted By
Environmental Planner

Fie Sr 
ae CE
Legend
Intormittent Watercourse
—— Perennial Watorcourse
{ 
J Wetland System
j (0) Probable Vernal Pools
i |Local Waterslied Boundaries
Stony Brook Drainage Basin
l 
|| Parcel
[77] PFO (Palustrino Forested Wetland)
PSS (Polustrlne Scrub-Slirub Wetland)
PEM (Palustrine Emergent Marsh)
GERD POW (Potustrine Open Water)
(2X) Proms (Palustrino Forested/Scrub-Shrub Wetland),
{—) PSS/PEM (Palusirine Scrub-Shrub/Bmergent Marsh),
Engineviiuy,
Landscape Atchitecture
iiratomanatsioe | Wetland Systems for Sub-Watershed 70 
Waterford, CT
ag MILONE & MACBROOM’
99 Realty Drive 
MMI: 3104-01 
N 
DATE: 
SHEET:
Cheshire, Connecticut 06410 
IMXD: Hiws70.nxd 
Stony Brook 
August 2007 
, 
;
(203) 271-1773 Fax: (203) 272-9733 
. 
SCALE: 
Figure 5-4
www. miloneandmacbroom.com 
SOURCE: DEP Bulletin No.40 
1:7,200

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