Environmental Monitoring at Glen Innes Waste Management Depot

Glen Innes Severn Council (PO Box 61, GLEN INNES NSW 2370) holds Environmental Protection Licence (EPL) number 5939 relating to waste disposal by application to land, at the Glen Innes Waste Management Depot at 88 Rodgers Road Glen Innes.

The licence includes a requirement to perform environmental monitoring of air emissions, water and land pollution at various locations and frequencies. The aim of monitoring is to assess present environmental health risks due to methane emissions from surface areas and within the recycling facility, and landfill leachate contamination of surface water and ground water. The environmental monitoring points are described in Table 1 below:

EPA Identification Number	Type of Monitoring Point	Monitoring Frequency	Location Description (labels in bold are referenced in diagram below and environmental monitoring results)
10	Air emissions monitoring	Quarterly	Surface gas monitoring in leachate irrigation area labelled "A1", "B2" and "C4" and in the "current operating landfill area".
11	Air emissions monitoring	Quarterly	Building gas accumulation monitoring in Materials Recovery Facility labelled "MRF".
2	Leachate quality Monitoring	Every 6 months	Tertiary leachate pond labelled "GL2"
3	Discharge to waters	Quality weekly & volume daily, only during overflow	Tertiary leachate pond spillway labelled "GL3"
	Discharge quality monitoring
4	Ambient water monitoring	Every 6 months	Point labelled "GS2"
5	Discharge to utilisation area	Daily volume, only during overflow	Point labelled "EPA 5"
	Volume monitoring
6	Groundwater quality monitoring	Quarterly	Groundwater monitoring point labelled "GW1"
7	Groundwater quality monitoring	Quarterly	Groundwater monitoring point labelled "GW2"
9	Leachate quality monitoring	Quarterly	Leachate monitoring point labelled "GL1". Sample taken from leachate sump of landfill.
	Volume monitoring	Monthly calculation
12	Groundwater quality monitoring	Quarterly	Groundwater monitoring point labelled "GW3"
13	Groundwater quality monitoring	Every 6 months	Groundwater monitoring point labelled "GW4R"
14	Ambient water monitoring	Every 6 months	Point labelled "GSQ". Surface water in quarry adjoining landfill site.

Table 1 - Environmental Monitoring Points

Diagram 1 below shows the approximate location of environmental monitoring points at the Glen Innes Waste Management Depot.

The monitoring requirements required by the licence are detailed in the link below, which is an extract from EPL5939:

Monitoring Requirements(PDF, 229KB)

Quarterly monitoring data for Glen Innes Landfill is shown in the attachment below:

Monitoring Data Glen Innes Landfill updated 3 February 2023(PDF, 456KB)

The type of wastes permitted at the Glen Innes Landfill, and relevant limits imposed by the EPL, are listed in the link below:

Waste Types and Limits(PDF, 149KB)