Attachment 1 - PWS Supplement_RAF Lakenheath and Feltwell - Draft.pdf

GROUNDS MAINTENANCE SERVICES

FOR

RAF LAKENHEATH

TASK ORDER PERFORMANCE WORK STATEMENT (PWS) SUPPLEMENT

DATE 27 April 2023

Prepared by

48TH CIVIL ENGEERING SQUADRON

1 DESCRIPTION OF SERVICES 3

1.1 MAINTAIN improved grounds 3

1.1.4 Weed Control 3

1.1.4.12 RAF Lakenheath Weed Control *Addition* 3

1.1.9 Lawn Conditioning 3

1.1.9.1 Fertilization *Addition* 3

1.1.9.2 Aeration * Addition* 3

1.1.10 Pest control 3

1.1.10.6 *Addition* 3

1.1.17 Ballfields at RAF Lakenheath *Addition* 3

1.2 Maintain semi-improved Grounds 4

1.2.1 Mow 4

1.2.1.3 *Change* 4

1.3 Maintain Bird Area Strike Hazard (BASH) 4

1.3.1 Mow 4

1.3.1.8 *Addition* 4

1.3.1.9 *Addition* 4

1.3.1.10 *Addition* 4

1.3.1.11 *Addition* 4

1.6 Maintain surface drainage ditches 4

1.6.3 4

1.8 Special requirements 4

1.8.6 Special Conservation Areas 4

1.8.6.1 *Addition* Management for RAF Lakenheath SSSI areas 2, 3 and 6. 4

1.8.6.2 *Addition* Management for RAF Lakenheath SSSI areas 1 and 5 5

1.8.6.3 *Addition* Management for RAF Lakenheath SSSI area 4 5

1.8.6.4 *Addition* RAF Lakenheath Special Species area 5

1.8.6.5 *Addition* RAF Lakenheath Old North End Dump 5

3.1 FACILITIES 5

3.1.1.1 *Addition* RAF Lakenheath 5

1 DESCRIPTION OF SERVICES

This Task Order Performance Work Statement Supplement for Royal Air Force Lakenheath is for additional work requirements and to be completed in conjunction the IDIQ Performance

Work Statement titled “GROUNDS MAINTENANCE FOR U.S. VISITING FORCES (USVF)

IN THE UNITED KINGDOM PERFORMANCE WORK STATEMENT (PWS)”. This document outlines further guidance in the performance specific to the sites covered by this Task

Order. Requirements and guidance in this document concern only the work performed under this

Task Order. This Task Order PWS will cover only the sections that required further information beyond the IDIQ PWS; therefore, all requirements from the IDIQ PWS flow to this task order only modified as stated within.

1.1 MAINTAIN IMPROVED GROUNDS

1.1.4 WEED CONTROL

1.1.4.12 RAF LAKENHEATH WEED CONTROL *ADDITION*

Herbicide treatment within this area should be limited, applied at the minimum appropriate dosage and only when required rather than as a preventative measure. RAF Lakenheath lies over a principle aquifer. It is in close proximity to the soil surface and herbicides can easily filter into

it. It is therefore considered to be very vulnerable. Application of selective weedkiller in areas identified on RAF Lakenheath map is prohibited due to the presence of Red List species and plants protected under S41 of the NERC Act. Herbicide/Pesticide is not to be used on any SSSI areas indicated on the map.

1.1.9 LAWN CONDITIONING

1.1.9.1 FERTILIZATION *ADDITION*

This clause does not apply to RAF Lakenheath BASH area.

1.1.9.2 AERATION * ADDITION*

The contractor shall not aerate any munition storage embankment areas at RAF Lakenheath.

1.1.10 PEST CONTROL

1.1.10.6 *ADDITION*

This clause does not apply to RAF Lakenheath BASH area.

1.1.17 BALLFIELDS AT RAF LAKENHEATH *ADDITION*

Ballfields shall be maintained to the Improved Grounds level. Maintaining ballfields shall include: mowing and trimming of grass, fertilizing, and replenishing dirt (red gravel) on the infield and replenishing topsoil in all ballfields as needed.

1.2 MAINTAIN SEMI-IMPROVED GROUNDS

1.2.1 MOW

1.2.1.3 *ADDITION*

Peacekeepers pond to be cut to the same standard as identified in paragraph 1.2.1 of the IDIQ

Performance Work Statement.

1.3 MAINTAIN BIRD AREA STRIKE HAZARD (BASH)

1.3.1 MOW

1.3.1.8 *ADDITION* RAF Lakenheath: A 6m (236 inches) margin shall also be cut around all buildings that are located in the Bird strike area as improved grass specification. The Bird

Strike area is established as Zone 2 on the RAF Lakenheath Grass Height Map.

1.3.1.9 *ADDITION* RAF Lakenheath: POL, LOX, Fuel Dumps and Hot Pits. The contractor shall maintain a 2 to 4 inch (50mm to 100mm ) grass height around all specified areas/ obstacles.

1.3.1.10 *ADDITION* RAF Lakenheath: Prune Shrub, Hedges and Other Plants. The contractor shall maintain vegetation to Improved standards, paragraph 1.1.12.

1.3.1.11 *ADDITION* RAF Lakenheath: Leaf Removal. The contractor shall complete leaf removal clearances IAW Improved standards, paragraph 1.1.8

1.6 MAINTAIN SURFACE DRAINAGE DITCHES

1.6.3 When directed by the COR Remove excess reeds, aquatic plants and tree saplings (such as willow suckers) to prevent peacekeeper park pond silting up.

1.8 SPECIAL REQUIREMENTS

1.8.6 SPECIAL CONSERVATION AREAS

1.8.6.1 *Addition* Management for RAF Lakenheath SSSI areas 2, 3 and 6.

Mowing all the grassland will be rolled and harrowed in the spring. The grassland will be mown with a fine flail cutter to height of 45/50 mm (2 inches) every fourteen days or less from April to

November each year. This mimics grazing by sheep or rabbits and will maintain the range of flora and fauna on site.

1.8.6.2 *Addition* Management for RAF Lakenheath SSSI areas 1 and 5

Mowing all the grassland will be rolled and harrowed in the spring. The grassland will be cut with a well-maintained cylinder mower followed by a rotary mower to a height of 30-35 mm (1.3 inches) every fourteen days or less from April to November each year.

1.8.6.3 *Addition* Management for RAF Lakenheath SSSI area 4

Mowing - the grassland will be mown for the first time in each calendar year in mid-July or after the wild grape Hyacinth Muscari atlanticum has set seed, whichever is later. The grassland will be subsequently mown every 14 days or less until November in each calendar year.

1.8.6.4 *Addition* RAF Lakenheath Special Species area

The Special Species Area grassland will be mown to height of 45/50 mm (2 inches) every fourteen days or less from April to November each year. This mimics grazing by sheep or rabbits and will maintain the range of flora and fauna on site.

1.8.6.5 *Addition* RAF Lakenheath Old North End Dump

Old North End Dump - Asbestos Area - The Contractor shall mow grassland for the first time in each calendar year in late March before the Stone Curlew nesting season. The top end stone curlew nest site will be sprayed with a non-residual ground deactivating systemic Herbicide

(such as glyphosphate) in late March. The COR may request a second application of herbicide from late May onwards. There may be a second cut late September if COR deems necessary.

Contractor staff shall be trained by an appropriately credentialed asbestos training company before work commences. Suitable PPE to be worn and permit to work will be required for mowing on the North side dump area. A Risk Assessment Method Statement (RAMS) and asbestos training certificate to be provided to the asbestos Program Manager 5 working days prior to commencing work. This will be completed each time access is required to the Old North

End Dump for maintenance. Cutting blades chains to be adjusted to a height so they don’t touch the ground. Works to be carried out on a wet day. No arising to be collected or removed from site. Equipment to be washed down immediately on leaving site. No grounds maintenance work to be carried out if Stone Curlew are present.

Stone Curlew nest against fence lines. Strimming will cease once a nest is seen or reported by

CE Environmental. Fence line may be sprayed once with weed killer when eggs are present on warm days. All nests of ground nesting birds are to be reported to CE Environmental.

3.1 FACILITIES

3.1.1.1 *Addition* RAF Lakenheath

The COR will make available to the Contractor two compound areas. At the time of tendering the area at RAF Lakenheath is located to the general Contractors compound areas near facility

859. Water and electricity supply is available, however, the electricity is metered and the contractor will be expected to pay all costs in association with the supply of this electricity.

Water is not currently metered. Telephone lines are provided but the contractor will be expected to arrange for all telephone disconnection and reconnection fees and costs as required at his sole expense.

There is a toilet facility for all contractors use within the compound facility. This facility will be maintained by all the users.