9. Are the assessments independent? Have any Category 3 checks been done? [LV-P]

ESP are an independent private practice who work for a range of public and private sector clients.

The Coal Authority (CA) were consulted by NPTCBC in July 2019. Refer to: Coal Authority Tip Inspection Report, July 2019:

CA Consequences, 2019:

• A major failure of the quarry spoil could potentially reach Godre’r Graig School. Although unlikely, a slope stability analysis based on available information supported by ground investigation data would be beneficial to assess the extent and likelihood of such a failure.
• Blockages of the drainage infrastructure to the rear of Godre’r Graig Primary School would result in flooding and potential slope instability."

CA Recommendations, 2019:

In  order  to  ensure  the  risk  of  instability  and  public  safety  remains  low…

• Consider clearing vegetation to allow inspection of drainage routes at Site 2.
• Ensure drainage infrastructure to the rear of Godre’r Graig Primary School is regularly inspected and maintained.
• Consider undertaking  a  slope  stability  analysis  for  Site  2  based  on  available information supplemented by ground investigation.

Category 3 checks are only for highway structures and buildings as part of the design process.