Attachments 26QA045.pdf

VEGETATION TREATMENT SERVICES

U.S. ARMY CORPS OF ENGINEERS

OTTER BROOK AND SURRY MOUNTAIN LAKES

KEENE & SURRY, NH

PERFORMANCE WORK STATEMENT

Maps

Map 1: Otter Brook Lake Overview

Map 2: Otter Brook Lake Chemical Vegetation Treatment

Map 3: Otter Brook Lake Chemical Vegetation Treatment Option 1 and Option 2

Map 4: Surry Mountain Lake Overview

Map 5: Surry Mountain Lake Chemical Vegetation Treatment Areas

Map 6: Otter Brook Lake 2019 Non-Native Invasive Plant Survey Overview

Map 7: Otter Brook Lake 2019 Non-Native Invasive Plant Survey Dam Area

Map 8: Otter Brook Lake 2019 Non-Native Invasive Plant Survey Access Road

Map 9: Otter Brook Lake 2019 Non-Native Invasive Plant Survey Recreation Area

Map 10: Surry Mountain Lake 2019 Non-Native Invasive Plant Survey Overview

Map 11: Surry Mountain Lake 2019 Non-Native Invasive Plant Survey Dort Road

VEGETATION TREATMENT SERVICES

U.S. ARMY CORPS OF ENGINEERS

OTTER BROOK AND SURRY MOUNTAIN LAKES

KEENE & SURRY, NH

PERFORMANCE WORK STATEMENT

Tables

Table 1: Otter Brook Lake Non-Native Invasive Plant Species Infestations Present List

Common name Latin name Species code Plant type

Garlic mustard Alliaria petiolata ALPE Herbaceous

Japanese barberry Berberis thunbergii BETH Woody oriental bittersweet Celastrus orbiculatus CEOR Woody autumn olive Elaeagnus umbellata ELUM Woody burning bush Euonymus alatus EUAL Woody glossy buckthorn Frangula alnus FRAL Woody bush honeysuckles Lonicera spp.* LOMO Woody

Japanese knotweed Polygonum cuspidatum POCU Knotweed multiflora rose Rosa multiflora ROMU Woody black swallow-wort Vincetoxicum nigrum VINI Herbaceous *There are three common non-native Lonicera species in NH, L. morrowii (Morrow’s honeysuckle), L. tatarica (Tatarian honeysuckle) and L. x bella, (showy fly honeysuckle, hybrid cross of Morrow’s and Tatarian honeysuckle). The three species have very subtle differences and will be grouped together throughout this report for simplicity, utilizing the species code ‘LOMO’.

Table 2: Otter Brook Lake Non-Native Invasive Plant Infestations Descriptions

Infestation Names

Infestation Level Species Code Description/Notes Water Features Within 25’

L1W18 Low priority, light infestation, woody species

FRAL, ROMU,

CEOR, LOMO

Brush hogged area west of dam, isolated from other infestations

None

H0W1, H0W2, H0W3, H0W4, H0W5, H0W6, H0W8, H0W9, H0W10, H0W11, H0W13

High priority, follow-up infestation, woody species

FRAL, ELUM,

LOMO, CEOR,

ROMU, EUAL,

BETH

Scattered small to medium sized areas near the USACE OBL office/dam

H0W7, H0W12

High priority, follow-up infestation, woody species

ELUM, FRAL,

EUAL,

ROMU, CEOR

Medium sized areas near the USACE OBL office/dam

H0W7- along bank of Otter Brook

H0W12-seasonally wet in some areas

H1W14, H1W15

High priority, light infestation, woody species

LOMO, FRAL,

ELUM, EUAL,

CEOR, ROMU

Small to medium infestations near

USACE OBL

office outbuildings

Nearby small streams/Otter

Brook

H1W16 High priority, light infestation, woody species

CEOR Single plant near western edge of dam

H2W7 High priority, moderate infestation, woody species

FRAL, LOMO,

ELUM, ROMU,

CEOR

Wetland & surrounding area in southern end of property

In and around wetland

H2W2, H2W4

High priority, moderate infestation, woody species

FRAL, LOMO,

EUAL, BETH

H2W2- Hedgerow along road in rec area H2W4- Patch of heavy LOMO with very light area surrounding along

Wet area in northern portion of

H2W4 road south of rec area

H2W8, H2W9

High priority, moderate infestation, woody species

ELUM, LOMO,

FRAL, CEOR,

EUAL, ROMU

Medium to large areas in southeastern portion of property

H2W10 High priority, moderate infestation, woody species

CEOR, FRAL,

LOMO, ROMU,

ELUM, EUAL

Stump and debris dump area off northern road

None

H0H1, H0H2, H0H3, H0H4

High priority, follow-up infestation, herbaceous species

ALPE Scattered small areas near the

USACE OBL

office

M1W6 Medium priority, light infestation, woody species

FRAL, LOMO,

ELUM

Open area off rec area road, some previous treatment

None

M1W4, M1W8, M1W12, M1W19

Medium priority, light infestation, woody species

FRAL, LOMO,

ELUM, EUAL,

CEOR, ROMU

Road edges and stream/Otter Brook banks

M1W12- Near road edges and stream/Otter Brook banks

M1W8 and M1W19 – Near seasonally wet road ditches, small streams

M1W3, M1W9, M1W10

Medium priority, light infestation, woody species

FRAL, LOMO,

BETH, POCU

(M1W10 only)

M1W3- Wet area along northern road M1W9, M1W10- Wetlands/banks of

OBL

Wet area near banks of OBL

H0W14 High priority, follow-up infestation, woody species

FRAL, LOMO,

ELUM

Medium sized infestation in the northern rec area

Wet area/pond along western boundary

M2W3, M2W5 Medium priority, moderate infestation, woody species

FRAL, LOMO,

ROMU, CEOR,

POCU

Large wetland infestations in

In/around wetlands

H3W3 High priority, heavy infestation, woody species

FRAL, LOMO,

ROMU, CEOR,

POCU

Wetlands with dense areas of

FRAL infestations, other listed NNIP scattered

Infestations in and surrounding wetlands

H2K3, H2K5, H2K6

High priority, moderate infestation, knotweed

POCU Small patches scattered in

H2K3 along Otter

H0K1, H0K4, H0K5, H0K6, H0K7

High priority, follow-up infestation, knotweed

POCU Scattered small to medium patches in rec area

Along Otter

H1K1, H1K2, H1K3, H1K4

High priority, light infestation, knotweed

POCU High priority, light infestation, knotweed

Otter Brook

Table 3: Surry Mountain Lake Non-Native Invasive Plant Species Present List

Common name Latin name Species code Plant type

Norway maple Acer platanoides ACPL Woody garlic mustard Alliaria petiolata ALPE Herbaceous

Japanese barberry Berberis thunbergii BETH Woody

Common barberry Berberis vulgaris BEVU Woody

Oriental bittersweet Celastrus orbiculatus CEOR Woody autumn olive Elaeagnus umbellata ELUM Woody burning bush Euonymus alatus EUAL Woody glossy buckthorn Frangula alnus FRAL Woody dames rocket Hesperis matronalis HEMA Herbaceous bush honeysuckles Lonicera spp.* LOMO Woody purple loosestrife Lythrum salicaria LYSA Herbaceous common reed Phragmites australis PHAU Herbaceous**

Japanese knotweed Polygonum cuspidatum POCU Knotweed common buckthorn Rhamnus cathartica RHCA Woody multiflora rose Rosa multiflora ROMU Woody *There are three common non-native Lonicera species in NH, L. morrowii (Morrow’s honeysuckle), L. tatarica (Tatarian honeysuckle) andL. x bella, (showy fly honeysuckle, hybrid cross of Morrow’s and Tatarian honeysuckle). The three species have very subtle differences and will be grouped together throughout this report for simplicity, utilizing the species code ‘LOMO’.

**P. australis is a graminoid (grass) species but is grouped with the herbaceous species in this report due to its similarity in proposed treatment type to herbaceous species.

Table 4: Surry Mountain Lake Non-Native Invasive Plant Infestations Descriptions

Infestation Names

Infestation Level Species Code Description/Notes Water Features Within 25’

H2K1 High priority, moderate infestation, knotweed

POCU Medium to large patches in northern portion of property

Banks of Ashuelot River and Surry Mountain Lake

H3K1 High priority, moderate infestation, knotweed

POCU Dense medium to large patches of

POCU

Along banks of Ashuelot River

M1W2 Medium priority, light infestation, woody species

BETH, ROMU,

LOMO, EUAL,

CEOR, BEVU,

ELUM, FRAL

Wooded area along west bank of Ashuelot River in northern portion of property

Ashuelot River, wet areas

H1W1, H1W3, H1W4

High priority, light infestation, woody species

FRAL, RHCA,

BETH, ELUM,

LOMO,

ROMU, EUAL,

CEOR

Small, scattered infestations.

H1W1 is near areas that have been previously treated for

NNIP

None

H1K1 High priority, light infestation, knotweed

POCU Scattered small patches

H2W1, H2W2, H2W3, H2W4

High priority, moderate infestation, woody species

ROMU, CEOR,

FRAL, RHCA,

ELUM, EUAL,

LOMO, BETH,

BEVU

Field and road edges near Dort

Rd.

None

H2W6 High priority, moderate infestation, woody species

FRAL, ROMU,

ELUM,

LOMO, CEOR

Medium to large infestations West of the Ashuelot River

Along West bank Ashuelot River

H2W31 High priority, moderate infestation, woody species

FRAL Area under powerlines, both sides of Rt. 12A

Wetlands/dry stream bed

H2W30 High priority, moderate infestation, woody species

FRAL Wetland area between mapped

USACE areas near Dort Rd.

Wetlands

H2H1 High priority, moderate infestation, herbaceous species

ALPE Small, scattered patches

None

H1H1, H1H3 High priority, light infestation, herbaceous species

ALPE, HEMA Small, scattered patches

H1H3- Ashuelot River

H0W3 High priority, follow-up infestation, woody species

FRAL, CEOR,

EUAL, ROMU,

RHCA, LOMO,

ELUM

Areas near Powerlines parking lot

None

H0W1, H0W2, H0W4

High priority, follow-up infestation, woody species

FRAL, CEOR,

LOMO,

ROMU, BETH,

EUAL, ELUM,

RHCA,

Wetlands and surrounding areas off Dort Road.

Mowing has previously been done in H0W4.

Wetlands, small streams

H3W1 High priority, heavy infestation, woody species

FRAL, CEOR,

RHCA,

LOMO,

ELUM, EUAL,

BETH, ROMU

Scattered small (<1 acre) patches throughout property

None

H3W2 High priority, heavy infestation, woody species

FRAL, LOMO,

ROMU

Large infestations in wetlands, east of Ashuelot River

Wetlands

H3W15 High priority, heavy infestation, woody species

FRAL, LOMO,

ROMU

Large and heavy FRAL infestations near Dort Road

In Wetlands