The EA are bunch of jobsworths. Round here 3 blokes take about a fortnight to strim the banks of our local river and glyphosate the weed every few years. In the meantime the IDB chap with a hymac and weedcutting bucket does miles everyday. All EA people do is ride about in white 4x4s. If you ever see a digger working there's 2 people parked in vehicles either side of it to ensure no one approaches it. Can you tell I don't like them? As for the OP get advice but kick up a stink bigtime.