SECTION B - Derry City Council

Tel: 028 38344440. Contact: Michael Blake
o Sample: A sample load of 1M3 is to be provided for inspection prior to any
Lakeland Brown gravel being used. This sample is to remain until all gravel
operations have been completed.
o Filling: All Lakeland Brown gravel filling is to be carefully positioned and laid
smoothly to avoid damage to adjacent surfaces. The Lakeland Brown gravel filling
required (75mm deep minimum) must be checked prior to completion. Topping may
be required due to settlement.
o Base: Gravel to be laid on top of black polythene builders liner, on 50mm deep
sand on 350mm deep good quality topsoil.
Permissible deviations on surface level +/-5mm.
Borderline Edging, 3mm thick Q10/120 between Gravel areas as separator,
Borderline Edging, 5mm thick Q10/110 as gravel edge or Superedge plastic
edging Q10/130 to Oak leaf shape as shown on the drawing
740 IMPORTED BLUE GREY SLATE MULCH (75MM DEEP) TO BOULDER
AND GRAVEL PLANTING AREAS IN SECTION 1
Material: Blue Grey Slate Mulch or similar supplied by :
Norman Emmerson and Sons Ltd
1 Annaloist Road
Lurgan, Co. Armagh BT66 6NJ
Tel: 028 38344440. Contact: Michael Blake
- Sample: A sample load of 1M3 is to be provided for inspection prior to any
Blue Grey Slate Mulch being used. This sample is to remain until all gravel
operations have been completed.
- Filling: All Blue Grey Slate Mulch filling is to be carefully positioned and laid
smoothly to avoid damage to adjacent surfaces. The Blue Grey Slate Mulch
filling
required (75mm deep minimum) must be checked prior to completion. Topping
may be required due to settlement.
- Base: Mulch to be laid on a black builders polythene liner on a 50mm deep
layer of sand on 350mm minimum depth of good quality topsoil
Permissible deviations on surface level +/-5mm.
- Plastic Edging, Q10/130 between Gravel areas as separator or Borderline
Edging, 5mm thick Q10/110 as gravel edge to grassed area as shown on the
drawing
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