Request for further information 05/06/2015 Information received 16/06/2015 Request for further information 29/06/2015 Information received 10/07/2015 Provision of further information by applicant 03/07/2015 & 08/07/2015 Schedule 5 notice issued to request more information 04/01/2016 Revised stability assessment 60 Day extension to Schedule 5 granted to operator 10/02/2016 Provision of further information by applicant 08/03/2016 Information received Request for further information 15/03/2016 Further Stability assessment Provision of further information by applicant 24/03/2016 Information received Permit Determined xx/xx/xx End of introductory note
Schedule 3 – Emissions and monitoring Table S3.1 Leachate level limits and monitoring requirements Monitoring point ref. & location Limit (including unit) Monitoring frequency Monitoring standard or method All leachate abstraction points and all additional replacement abstraction points 2m above cell base Monthly Unless otherwise agreed in writing with Natural Resources Wales, monitoring methods used shall be in accordance with Environment Agency document ‘Guidance on monitoring of landfill leachate, groundwater and surface water’ (LFTGN02). Table S3.2 Point Source emissions to water (other than sewer) and land – emission limits and monitoring requirements Emission point ref. & location Source Parameter Limit (incl. unit) Reference Period Monitoring frequency Monitoring standard or method Cell 3A in Area 2. Identified on site drawing no – Surface Water Lagoon (prior to discharge) Suspended Solids 100 mg/l Spot Sample Monthly As per LFTGN02 issued February 2003 ‘Guidance on Monitoring of Landfill leachate, groundwater and surface water COD 120 mg/l Ammoniacal Nitrogen 5 mg/l pH Min. 6 pH units Max. 9 pH units Asbestos Fibres None Detectable Oil and Grease None Visible Observation Table S3.3 Trigger levels for emissions to groundwater and monitoring requirements Emission point ref. & location Parameter Limit (incl. Unit) Reference period Monitoring frequency Monitoring standard or method GW06_13 (Note1) Arsenic 50 µg/l Spot sample Quarterly Ammoniacal Nitrogen 35 mg/l Benzene 2 µg/l Naphthalene 5 µg/l Nickel 14 µg/l Potassium 110 µg/l Xylene 3 µg/l GW06_14A (Note1) Arsenic 25 µg/l Spot sample Ammoniacal Nitrogen 60 mg/l Benzene 2 µg/l Naphthalene 5 µg/l
Table S3.8 Particulate matter in ambient air – limits and monitoring requirements Emission point ref. & location Parameter Limit (including unit) Reference Period Monitoring frequency Monitoring standard or method Cell 3A in Area 2. Identified on site drawing no – 14739/155/001 PM10 40µ/m3 - annual mean. 50µ/m3 - 24 hour mean, not to be exceeded >35 times per year. 8 hours During asbestos disposal operations Six monthly As per M17 issued July 2013 ‘Monitoring of Particulate Matter in ambient air around facilities’. Deposited particulate Asbestos fibres 0.001 asbestos fibres/mL Table S3.9 Asbestos Cell Stability Monitoring Requirements Emission point ref. & location Parameter Monitoring frequency Monitoring standard or method specifications Asbestos cell separation bund inclinometers 1, 2 and 3 Deformation behaviour of the separation bund measured at each inclinometer. to commencement and upon completion of each separation bund lift and at 6 monthly intervals. Separation bund inclination and topography assessment. Plan and drawings of the separation wall to be included. The inclinometers in the separation wall will be equally distributed along the length of the separation wall. The inclinometers will be installed after the first 1-3 lifts of the separation wall, dependent on the starter length of pipe and thereafter be extended upwards. The inclinometer base will benefit suitable vertical location and protection measures in order to ensure that basal lining system is not compromised. The separation wall and inclinometers will be surveyed in. The separation wall will be constructed in lifts and each lift will be surveyed to outline its base and crest footprints. Table S3.10 Process monitoring requirements Emission point reference or source or description of point of measurement Parameter Monitoring frequency Monitoring standard or method specifications
6 Vibrating wire piezometers; 2 x piezometer ~10m from outer edge of waste footprint 2 x piezometer at Peak anticipated loading 2 x piezometers equidistant between these points Pore Water Pressure (PWP) Annually Vibrating wire piezometers with full uninterrupted cable length from piezometer located under the landfill to monitoring location outside the landfill footprint. The piezometers will be furnished with data loggers and readings reported in kPa, being reviewed annually.
Schedule 4 - Reporting Parameters, for which reports shall be made, in accordance with conditions of this permit, are listed below. S4.1 Reporting of monitoring data Parameter Emission or monitoring point/reference Reporting period Period begins Leachate levels as required by condition 3.6.1 Monitoring points specified in S3.1 Every 3 months From date of issue of variation Groundwater parameters as required by condition 3.6.1 Monitoring points specified in Table S3.3 Every 3 months From date of issue of variation Landfill gas surface emission parameters as required by condition 3.6.1 Monitoring points specified in S3.5 Annually From date of issue of variation Landfill gas lateral migration parameters as required by condition 3.6.1 Monitoring points specified in Table S3.4 Every 3 months From date of issue of variation Other leachate monitoring parameters as required by condition 3.6.1 Depth to monitoring point base Hazardous Substances Leachate Volume Monitoring points specified in Table S3.6 3 months Every 3 months Annually 3 months From date of issue of variation Other groundwater monitoring parameters as required by condition 3.6.1 Depth to monitoring point base Hazardous Substances Groundwater levels (mAOD) Monitoring points specified in Table S3.7 Every 3 months Annually Annually Every 3 months From date of issue of variation Emissions to water as required by condition 3.6.1 Monitoring points specified in Table S3.2 Every 3 months From date of issue of variation Particulate matter parameters as required by condition 3.6.1 Monitoring points specified in Table S3.8 Every 6 months From date of issue of variation Separation bund topography and separation bund inclination as required by condition 3.6.1 Monitoring points specified in S3.9 each lift but in any case no longer than 6 months From date of of variation Process monitoring requirements as required by condition 3.6.1 Monitoring points specified in Table S3.10 Every 12 months From date of issue of variation Table S4.2: Annual production/treatment Parameter Units
Leachate: Disposed of off-site Disposed of to any on-site effluent treatment Recirculated into the waste mass Cubic meters/year Surface water and/or groundwater: Disposed of off-site; Disposed of to any on-site effluent treatment plant Cubic meters/year Landfill Gas: Combustion in flares; Combustion in gas engines; Other methods of gas utilisation Normalised cubic meters/year Table S4.3 Performance parameters Parameter Frequency of assessment Potable water use Annually Cubic meters Energy usage (including leachate treatment) Annually MWh of electricity Non-potable water use Annually Cubic meters Table S4.4 Reporting forms Media/parameter Reporting format Date of form Leachate Form Leachate 1 and Leachate 2 or other form as agreed in writing by Natural Resources Wales DD/MM/YY Controlled Water Form Water 1 or other form as agreed in writing by Natural Resources Wales DD/MM/YY Surface Water Form Water 2 or other form as agreed in writing by Natural Resources Wales DD/MM/YY Groundwater Form Groundwater 1 and Groundwater 2 or other form as agreed in writing by Natural Resources Wales DD/MM/YY Landfill Gas Form LFG 1 or other form as agreed in writing by Natural Resources Wales DD/MM/YY Waste Return Waste tonnage return form spreadsheet available from Natural Resources Wales DD/MM/YY Particulate Matter Form Particulate 1 or other form as agreed in writing by Natural Resources Wales DD/MM/YY Landfill topographical surveys and interpretation Reporting format to be agreed in writing with Natural Resources DD/MM/YY Inclinometer readings of asbestos bund and separation bund Reporting format to be agreed in writing with Natural Resources Wales DD/MM/YY usage Form Usage 1 or other form as agreed in writing by Natural Resources Wales DD/MM/YY Energy Form Energy 1 or other form as agreed in writing by Natural Resources Wales DD/MM/YY Other Performance Indicators Form Performance 1 or form as agreed in writing by Natural Resources Wales DD/MM/YY