The extraction of:
- industrial minerals
- building and roading aggregate
- pumice and soil
From:
- holes
- pits
- cuttings
- quarries
The stacking, storing, depositing or treatment of excavated materials. The removal of overburden, debris tailings or any unwanted material. Quarry operations do not include:
- the removal of sediment and shingle from river beds
- the mining of ore
Some general points on what problems sediment can cause:
- Sediment is the name given to the earth particles which have been transported by wind and water.
- Sediment is a pollutant.
- Sediment can impact on the water quality in streams, lakes, estuaries and harbours.
- Sediment in the water can lead to increased erosion of stream banks, etc.
- Sediment can bind to toxins in the water trapping them in the system.
High levels of sediment deposition can:
- modify or destroy habitats
- abrade or smother flora and fauna
- destroy food sources
- interrupt life cycles
- damage pumps
- pollute water supplies
- cause flooding
- leave unsightly damage
The recovery time from sediment is measured in years rather than months. Quarrying is a major source of sediment. Sediment yield from earthworks such as quarrying can be up to 1,000 times greater than from rural land.
Environment Bay of Plenty are responsible for ensuring the natural and physical resources of the region such as the land, air, water and coastal resources are managed in a sustainable manner under the Resource Management Act 1991. Environment Bay of Plenty have developed a Regional Land Management Plan which outline the rules and regulations regarding quarrying. Under these rules and regulations certain types of activity require Land Use Consents.
Land Use Consent forms are available from Environment Bay of Plenty.
Land Use Consent applications should include an Erosion and Sediment Control Plan. The purpose of an Erosion and Sediment Control Plan is to illustrate which erosion and sediment control measures are intended.
The purpose of an Erosion and Sediment Control Plan is to:
- control anticipated erosion
- prevent sediment from leaving the site
Erosion and Sediment Control Plans should include:
- history of the quarry site
- future of the quarry
- a locality map
- a site plan illustrating:
- the extent of quarrying
- type of potential erosion
- sediment controls
- erosion controls
- catchment boundaries
- off-site sources of runoff
- stockpile areas
- rehabilitation of worked out areas
- disposal of overburden
- treatment of contaminated runoff
- construction schedule/staged activity
- monitoring and maintenance schedules
Maintain control measures to ensure ongoing effectiveness.
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