Conservation Commission Agenda (linked)

FIFTEEN ROPE FERRY ROAD WATERFORD, CT 06385-2886
TOWN OF WATERFORD, CT
PLANNING & DEVELOPMENT
Date: November 4, 2024
To: Waterford Conservation Commission
From: Maureen FitzGerald, Environmental Planner
Re: Application #C 24-11 —-22A Avery Lane
Application Review Comments
Proposed Regulated Activity
The application requests authorization to construct a new residence, garage and pool within the 100 ft.
upland review area (URA) of a large riparian wetland bordering Nevins Brook at property located 22A
Avery Lane. The original lot of 22A Avery Lane was authorized for residential construction in 2002 as a
subdivision lot by permit #1WW 02-32. As a condition of the subdivision wetland permit, a non-
encroachment boundary was established along the western side of the property, off-set 100 feet from the
edge of Nevins Brook channel. This is consistent with riparian protection recommendations outlined in
the Jordan Brook Watershed management plan.
The property owner has since acquired additional land south of the original subdivision property
boundary containing additional wetland and area designated as an AE flood hazard zone.
The parcel now consists of 3.89 acres and contains a 2.08 acre of forested wetlands as well as wooded
floodplain. The proposed area of disturbance in the URA is approximately 11,500 sq. ft. or 0.26 acre.
Regulated activities include excavation and grading upgradient of inland wetlands for construction of a
residence, garage and pool. The site is proposed to be connected to municipal water and sewer service.
No direct wetland impacts are proposed.
Wetland Description
A wetland and watercourses report was included in the application, prepared by Ian Cole, LLC. dated July
2, 2024. The wetland consists of a seasonally flooded wooded swamp with some shrub/scrub open areas
bordering Nevins Brook channel and the municipal sewer easement. The wetland soils are mapped as
Catden and Freetown mucks, poorly drained. Refer to attached AE floodplain mapping.
The wetland is part of the Jordan Brook watershed and is identified in the watershed management plan as
NM-1, part of the Nevins Brook mainstem. The relative wetland value assigned to NM-| is average for
the watershed. (Refer to attached wetland summary map).

Application Review Comments:
1. The site plan does not indicate proposed grading around the house construction. Some filling will be
involved in establishing the grading for the foundation of both the residence and garage structures.
The proposed limit of clearing west of the house and garage footprint is a minimum of 10 feet from
the edge of the structure.
2. The extension of the perimeter erosion and sediment controls are recommended to be continued along
the northern boundary of the site construction and extend to the southeastern limit of clearing and
grading.
3. The extent of the AE flood hazard area is recommended to be designated with hatched-lines or
shading on the site plan to facilitate identification of this hazard area.
4. Stormwater run-off control measures are recommended to collect and pre-treat site run-off from
paved surfaces prior to discharge to Nevins Brook.
5. The non-encroachment boundary limit established for lot 22A Avery Lane as part of inland wetland
permit 02-33 is indicated on the site plan. This boundary was established at a 100 ft. off-set from the
edge of Nevins Brook channel. The proposed plan shows a 50 ft. wetland off-set line from the
wetland boundary.
6. To provide contiguous wetland protection from site development consistent with the original
subdivision approval, the Commission may consider extending the non-encroachment boundary along
the Nevins Brook riparian corridor at a 100 ft. off-set from the brook channel south to a point parallel
to wetland flag #10. Thence, extend the wetland non-encroachment boundary line east to the eastern
stone wall property limit at an off-set of 50 feet from wetland flags #22 and 23, forming a rectangular
clearing and grading extent around the proposed structures. A proposed non-encroachment area
boundary is shown on the attached sketch for consideration.
7. Ifthe proposed non-encroachment boundary sketch is accepted by the Commission as the authorized
limit of activity, the 50 ft. wetland off-set line should be eliminated from the final site plan.
8. No activity, including but not limited to including but not limited to clearing, grading, filling or
removal of vegetation shall be conducted within the non-encroachment area without specific
authorization from the Conservation Commission. The purpose of this vegetated non-encroachment
area is to protect inland wetland resources and watercourses from direct and indirect impacts
associated with adjacent land development.
Maureen aay
Environmental Planner
attachments (4pp)

11/4/2024 1:04:06 PM
Scale: 1"=500"
Scale is approximate
The information depicted on this map is for planning purposes only.
It is not adequate for legal boundary definition, regulatory
interpretation, or parcel-level analyses.

F
ne, oe
a ne J
Town of Waterford
WETLANDS SUMMARY
WETLAND VALUES
VERY HIGH
(ly HIGH
Ml AVERAGE
(Gy LOW
MAJOR ROADWAYS
SCALE: 1 INCH = 4000 FT
4000 ie)
4000 Feet
£0) FUSS & ONBILL INC.
GISW31SANPROJECTSISPECIALWET APR
Site Location
Miner Lane
\ Great Neck Road

—S
——
=k =
=
ie
—m_—
a nd
Fuss & O'Neill Inc.
TABLE 6
INLAND WETLANDS SUMMARY
JORDAN BROOK WATERSHED MANAGEMENT PLAN
TOWN OF WATERFORD
FEBRUARY 2000
Mean Mean Mean | Subjective | Final Water Special
Wetland Area | Conductivity | FVI WVU Opinion | Wetland | Quality | Signif.
(acres) | (umhos/cm) | (Score) | (Score) (Score) Value Sensitive
[Lower Jordan Brook
JLM1 37.4 80 0.66 24.67 3 High I x
JLM2 2.0 72 0.68 1.35 4 Very High P Xx
JLM3 17.1 60 0.66 11.25 2 High P
JLT1 18.9 94 0.50 9.51 2 Average I
JLS1 93.9 0.62 58.61 3 High x
JLP1 3.0 98 0.49 1.48 2 Average I
JLP2 2.1 71 0.64 1.34 3 High
JLP3 3.4 74 0.69 2.35 4 Very High P xX
(Central Jordan Brook
JCM1 60.1 82 0.75 44,78 3 Very High P Xx
JCM2 31.4 83 0.57 17.99 2 Average I
JCT1 16.3 51 0.46 7.48 2 Low
JCT2 47.0 56 0.68 31.86 3 High P x
JCT3 22.7 0.48 10.97 2 Low
JCT4 7.0 0.49 3.43 2 Low
CTS 12.4 0.55 6.85 1 Low
JCT6 40.4 154 0.62 25.24 4 High P x
JCS1 27.1 0.74 20.17 4 Very High Xx
JCS2 26.6 0.47 12.53 2 Low I
JCP1 6.0 0.56 3.34 2 Average I
Upper Jordan Brook
JUM1 45.5 38 0.72 32.96 4 Very High P x
JUT1 9.5 0.59 5.56 2 Average
JUS1 3.6 0.48 1.73 i) Low
JUP1 2.2 0.50 1.11 2 Average I
JUP2 2.8 56 0.59 1.65 3 High
Nevins Brook
———
IN 303 | 97 0.56 | 16.99 2 (averass) CD
INM2 16.3 102 0.71 11.56 3 Very High P x
INT1 26.8 110 0.74 19.82 4 Very High P Xx
INT2 6.5 253 0.50 3.25 3 High I
INT3 TA 84 0.65 4.64 3 High
INS1 13.9 0.60 8.35 4 High
INS2 14.4 62 0.58 8.34 2 Average I
INP1 25 33 0.67 1.67 4 Very High P x
INP2 3.7 102 0.57 2.09 2 Average I
| P93/93154/A2/TABLE3.WB2

N
T
Floodwa
Y Elevati
ROOK
ne
of
Nevins
Brook
=
+
184.6'
S
60718745"
E
Joseph
W.
¢
Mandy
Syhia
Town
Clerk,
Volume
691
Page
16
Tax
Assessor
Map
132
Lot
111
PROPOSED
100"
(UPLAND
PROPOSED
REVIEW
AREA
SEWER
LINE
6
1g
cm
UA
=
~
|
we
(ne
fo
ak
_—
J
caren
“A /
jo
l 7
/Puttding Line \
ff | 224 Pit \ \s zs2800
! / » 8.66’
i ! AVER O dS 8845/29" E
PROPOSED
A”
16.11
LIMITS OF CLEARING & Prior Approved N.E. al ©
SILT FENCE Boundary IWW #02-32 oO ‘<<
1
Za
Vee
! a
; 7
a—~
H <7)
/ / J
/ 7 8735'59"
: A ff 24. 81%
tall 05°51'29” W
et} J00 /~ ANTS
/ ele S 12°12'24" E
F #318 \ — / 63.05"
; 28 a \ ROPQSE /
! = Blo WLF 2 *
! 2 Bla As \\ Cod Be; \o
Proposed Continuation of \ %y \ me AR 7 /
Non-Encroachment Boundary \ a / %
ZZ / / co
—_ : . \ ZA
/ | a ny: % \ Z /
/
sot!
awe
eo
K 50\ APETLAND ~ =
; ae \ oO LINETM aN * /
v
\
4
=
w 14e° \ <f pe \YAe. /
A
~~
\
50
fy
Y
Whe
og
/\
WLE ~f \ “ #24 z l \
A #11 A \WLFO -~ WEF ees \\ee \
WLF ~~ fe ® \ / \
#13 a \
Ah’ WLF ts \ “S
#4 ‘Xo
WLF AN “Ne Q
WLF #4 — = > \
#15 F =
\ WLE \e-
\WLe HO le
#19 ;
Y. ) S 1211705”
i 4.35°
74.97
puilding Ne x
0.47
—~
wir
WLF
WLF WLF s 8025 46
#19 #18 WLF
—_—
WLF