J Romero, GHD

Publication Date

9-6-2023

Publisher

GHD

City

Perth

Abstract

The National Water Grid Authority awarded the Department of Primary Industries and Regional Development (DPIRD) a project entitled ‘Managing Water Quality to Enable Future Irrigation Development in the Kimberley Region’.

The purpose of the project is to review the current and future risk profile of agrichemicals (pesticides) in the Keep River catchment (Ord - East Kimberley) in the context of irrigation development across the last decade and proposed in the medium term. The results of the review were to define prospective mitigation and risk management practices to be developed in consultation with the Goomig and Knox Plains Independent Review Group and local agricultural community.

One element of this funding was to update an existing numerical hydrodynamic model of the lower Keep River system and to apply it to improve understanding of the implications of current and future agricultural practices of the existing Goomig and proposed Knox Plains farmlands. This report outlines the methodology and findings of the updated hydrodynamic modelling.

Number of Pages

79

Keywords

three-dimensional hydrodynamic modelling, farm chemicals, Keep River, water quality

Disciplines

Agriculture | Environmental Indicators and Impact Assessment | Environmental Monitoring | Geology | Hydrology | Natural Resources and Conservation | Soil Science | Water Resource Management

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