Toxic mud dumping to start 6th September

Stop Press:    DUMPING DELAY 
  likely to begin next week from Monday 10th Sept.

The Cardiff Habourmaster has announced that two dredger-barges MV Sloeber and MV Pagadder will begin dumping next Thursday, daily for 3 to 6 months.  The operator  Marine Co-ordination can be contacted on 07936 335247.
Penarth Daily News has discovered that the 300 000 tonnes is to be followed by further dumping in 2020.
NRW who awarded the license have suddenly accepted (letter to FoE of 29 August) that there had been no EIA (Environmental Impact Assessment) or HRA (Habitats Regs Assessment) by the company, as they had previously stated.
But no matter, they now say

"an EIA was not required", and
"we did undertake an HRA as part of this licence determination"/

Are we expected to believe them, changing their position and saying there's been another study that was previously undisclosed, not posted in their License file?  Their rules say EIA is alwys required for works in a European-designated Conservation Area.
The only document called HRA is a pro-forma completed in 2013, prior to rules updated in 2015. That outdated document is not with the key documents on the NRW website.  Of course, FoE immediately asked for disclosure of a copy and the NRW referred it through their slow (20 working days) system for information requests.