1. Environment and Regeneration Scrutiny Panel 22 November 2006 LLWYNEINION COMPLEX
Sarah Evans (Senior EHO) &
Angela Guy (Contaminated Land Officer)
Wrexham County Borough Council

2. Introduction
The presentation today will act as an update of the present situation at the Llwyneinion Complex
We will discuss the wider issues around the site
We will provide a detailed summary of the works being undertaken

3. Acid Tar Lagoon
Fullers Earth Tip
‘Monsanto’ Tip

4. Llwyneinion Liaison Group
Began in July 2006
Meetings every 3 months
It is chaired by Cllr Pemberton and involves 2 other WCBC Councillors and:
- Representatives of Esclusham Community Council
- Local residents
- WCBC Officers
- EAW Officers
- Representatives from the Local Health Board

5. Llwyneinion Liaison Group cont…
Last meeting held in October and staff from North Wales Fire Service attended along with Environmental Consultants Entec & Enviros
Press article issued after each meeting
Positive – used to feedback information and to highlight important issues
Meetings well attended

6. Llwyneinion Officers Internal Working Group
Began in September
Meeting on a monthly basis
Group involves Officers from:
- Public Protection
- TAM
- Legal
- Emergency Planning
- Rights of Way
Ensuring we are all working together and discussing issues such as the new fence & implementing advice from the Fire Service

7. Monsanto Chemical Waste Tip Site Investigation Works
Awarded £40,000 under WAG Contaminated Land Capital Funding Programme 2006/07
Entec commissioned to undertake the further site investigation works
Works started in September with a ‘kick off’ meeting
Relevant Officers and Organisations are being kept informed via the Officers Internal Working Group & other meetings

8. Monsanto Chemical Waste Tip Site Investigation Works
Previous site investigation report done in 1995
Current works are addressing potential issues raised in the report and;
Current works are also looking at possible changes in the circumstances on site since 1995 works

9. Monsanto Chemical Waste Tip Site Investigation Works
Pollutant Linkages Being Investigated:
Solid, liquid, vapour substances → Direct exposure & inhalation → Site users/trespassers
Liquid substances → Migration via fill and natural ground/via groundwater/via worked coal seams, mine drainage adits → Surface Water
Liquid substances → Migration via mine shafts/natural ground→ Groundwater

10. Monsanto Chemical Waste Tip Site Investigation Works
Works slightly delayed due to necessary liaison with Coal Authority
6 trial pits excavated on 27 Oct 06 (soil samples taken)
4 shallow groundwater monitoring boreholes (c. 5m depth) installed last week
6 window samples with gas monitoring installations currently being installed
3 deep groundwater monitoring boreholes installed over the weekend

11. Monsanto Chemical Waste Tip Site Investigation Works
Samples to be taken:
Soil (made ground, natural ground, leachability)
Groundwater
Surface Water
Railway Cutting seepages

12. Monsanto Chemical Waste Tip Site Investigation Works
Findings to date:
Chemical waste covered with ash/brick/rubble fill
Chemical waste does not appear to extend across whole of site shown on earlier slide
EAW/WCBC sharing information to improve investigation works where possible

13. Monsanto Chemical Waste Tip Site Investigation Works
The next few months…
Site investigation sampling points due to be completed in next week or so
Some sampling will continue for next 2-3 months
Report likely to be complete in March/April
Findings of the report will be communicated