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Showing results for tags 'rpa incursions'.
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I'm currently writing some method statements for a development site (one of those things that you do to tick the boxes for the planning department that then gets totally ignored once site activities start). Due to some changes in levels across the site it's looking likely that some within some RPAs some modifications will be necessary. Basically they might need to raise ground levels along the length of the garden (trees are at the bottom boundary), sloping up from the dwelling towards the trees at the higher levels. It's nothing significant that would require load-spreading or under-soil aeration - just a matter of inches. I can't find anything very specific to describe a soil type that wouldn't negatively impact on the trees. I've read a lot of Standards and other literature regarding back-fill for trenches within the RPA but they're a bit vague - soils that'll allow air and moisture to pass through and won't impede new root growth and that's about it. Can anyone point me towards anything that I can specify so that the builders don't just use whatevers to hand to sort out levels? Thanks in anticipation.