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Compliance and monitoring

Annual compliance reporting

We produce an annual compliance report in accordance with our operating and environmental licences.

Compliance reports contain detailed technical data on a range of required environmental and operational parameters.

The climatic conditions in the area influence every aspect of these reports. The climate determines the volume of water available for irrigation, the volume of water used for irrigation, the volume of water discharged from the area and the rate of evaporation.

Pollution Incident Response Management Plan

The following summarises the approach taken by Murray Irrigation to manage pollution incidents that involve our assets, the environment, customers and staff.

Pollution Incident Response Management Plan

Summary of the 2018/2019 Annual Compliance Report

The climatic conditions in the area influence every aspect of this report. The climate determines the volume of water available for irrigation, the volume of water used for irrigation, the volume of water discharged from the area and the rate of evaporation.

With respect to the climate, it was extremely dry from July to December 2019 over the entire area of operations. There was above average rainfall during March and April 2020 in the eastern section the area of operations, the extremely dry conditions persisted for the entire 2019/20 water season in the western section of the area of operations. Evapotranspiration was above average in spring 2019, with normal evapotranspiration levels during summer 2020.

General Security Allocation for 2019/20 was 3% (in May 2020) with limited carryover of water from the previous year, General Security Allocation in 2018/19 was 0%.

In 2019/20, water delivery on-farm was 87,561ML, well below the previous year’s on-farm delivery (287,541ML in 2018/19). Delivery of environmental water (14,4702ML) was higher than the previous year (8,602ML in 2018/19). Delivery of water for operational purposes under agreement with WaterNSW in 2019/20 (180,841ML) was lower than the previous year (260,024ML in 2018/19). Discharges from the stormwater escapes (165ML) were extremely low reflecting the exceptionally dry year.

Murray Irrigation’s delivery efficiency was 77%.

In 2019/20 the highest water use by crop type was winter crops (35% of the water delivered), followed by annual pasture (26% of the water delivered) and horticulture (15% of the water delivered). Compared to 2018/19, where winter crops were the highest water use by crop type (33% of the water delivered) followed by annual pasture (24% of the water delivered) and summer crops (20% of the water delivered). This is a reflection of the seasonal conditions experienced, especially in relation to the low allocation for general security water. Interestingly, the volume of water used on horticulture (12,752ML) in 2019/20 was similar to the previous year (15,432ML in 2018/19).

The area impacted by water table within two metres of the surface (349ha) is lower than the previous year (3,587ha in 2018/19). In contrast, the area impacted by water table within 4m of the surface significantly decreased (14,068ha) compared to the previous year (69,211ha in 2018/19). This is a reflection of the two successive dry years 2019/20 and 2018/19. The rationalized piezometer network was used for the first time in August 2019.

 

VIEW THE 2019-2020 ANNUAL COMPLIANCE REPORT HERE

Monitoring data summaries

The Protection of the Environment Legislation Amendment Act 2011 introduced changes to the Protection of the Environment Act 1997, including a new requirement that holders of an environment protection licence make their pollution monitoring data publicly available.

The monthly monitoring data for the current reporting period is available below.

These reports are also available in alternative electronic formats, such as Excel, upon request.

October 2020 - Monitoring data summary
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September 2020 - Monitoring data summary
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August 2020 - Monitoring data summary
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July 2020 - Monitoring data summary
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