Is the demolition of Hainault House and outbuildings safe?

Is the demolition of  Hainault House and outbuildings  safe?

Most of 'Parcel A' which includes Hainault House and outbuildings, is on contaminated landfill at Billet Rd. Bellway applied for prior approval to demolish the house and all the other buildings on the site. 

Testing shows that it's surrounded by Asbestos. 'A' equals Asbestos. The yellow line and shading shows the inferred landfill boundary. No testing has been done on the Hainault House area including the outbuildings and kennels. 

Here's some of the things they found on the left hand section of 'Parcel A'
(the red & blue blobs):

Loose Asbestos fibres

Methane concentrations above 1% 
carbon dioxide concentration above 5%
Soft greenish black clay with strong hydrocarbon odour

Lead concentrations that exceed applicable human health criteria

TPH concentrations in exceedence of Water Supply Regulations 2016

Cooper concentrations exceeded applicable assessment criteria

Zinc concentration exceeded applicable assessment criteria 
Benzo(b)fluoranthene & benzo(a)pyrene: exceeded the applicable criteria 
Dibenzo(a,h)anthracene: exceeded the applicable criteria 

Xylene exceeded the applicable screening level 
Phenol exceeded the applicable screening level
Hydrocarbon contamination 
TPH Aromatic C10-C21: 430ug/l exceeded applicable screening criteria 
TPH Aliphatic C10-C35: 410ug/l 
TPH Aromatic C10-21: 260ug/l 
Perched water strikes 
Benzo(a)anthracene exceeded applicable criteria 
Chrysene: exceeded applicable criteria 
Dibenzo(a,h)anthracene: exceeded applicable criteria 
The natural ground had concentrations of benzo(b)fluoranthene, benzo(a)pyrene 
and dibenzo(a,h)anthracene (MWS09a) greater than the screening level for residential homes with private gardens

The 'Method Statement' says that the works includes:

 'Re-cycling /removal of material'

All the resulting debris such as hard core, concrete and steel will be processed and graded at ground level using 360 degree excavators with hydraulic shear, concrete pulveriser/nibblers, grapple and bucket attachments. 

Will any of this debris and the soil/natural ground removed with it be contaminated material ?

Where will it go?

Dust control measures will continue to be implemented during the grading and loading of materials

Emergency Proceedures for site personnel :
Excavation of contaminated material with visual discolouration/noxious smell. Withdraw to a safe distance, make immediate contact with Site Manager.

What was in the planning application for Risk Assessment and contamination?

Environmental control measures covers mitigation for dust, emmissions and noise - NOTHING about contamination

Environmental Plan - Activities undertaken on site will be subject to an environmental risk assessment by Oakwood and Bellway.

Methodology says that the working practices have taken due account of the following: The Environmental Protection and Pollution Control Act 1990 along with several other heath and safety regulations.

Method Statements will be reviewed by the Site Environmental Manger, and, where necessary, by an appropriate environmental specialist. 

If required all method statements will be submitted to the enforcement

agencies (Environment Agency, Environmental Health Officer, HSE etc.) as appropriate.

Planning Officer's Report - application granted

Constraints - no mention of contamination

Planning Considerations - no mention of contamination

Public comments - includes concern of spread contamination during demolition

See also Demolition of Hainault House copies of the reports mentioned here are available on the London Borough of Redbridge Planning Portal application number 3840/22