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Rusty Bore Covers Can Kill

A bore cover can take 20 years to slowly rust to the point where a person stepping on it will fall straight through. The fall can easily be deadly. Unfortunately it is likely to be children who like to play on such an interesting object. With 170 000 Bores throughout the Perth Metro area there are highly likely to be home owners unaware of the danger. The council check pool fencing and the electricity wires but not bore covers.

There is also a real risk to household pets. Pets are just as vulnerable to falling through dangerously rusted bore covers.
There is a significant number of bores in the front yard of properties and the almost all are unsecured. If the public knew how deep many of these bore holes are they would be terrified. I have visited many properties delivering bore covers and some are so deep you cannot see the bottom. Even in the same suburb there are shallow and deep bores.

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Why Garden Bores Should Not Be Included in the Winter Sprinkler Ban

The state government has declared the winter total sprinkler ban in Perth and Mandurah a success and has decided to make this a permanent feature. It is obvious that reducing the scheme water used on lawns saves much needed reserves. The trial 2 month ban saved 50 million litres of water. What is not obvious is whether banning bore water use makes any difference at all.

More water is drained from the shallow aquifer in Perth every year by the Water Authority than is drawn by garden bores. This is done to stop the ground water from rising too high. By reducing garden bore use in winter the Water Authority will just have to drain more water out of the aquifer. Where is the common sense in that. Further more during the trial 362 educational letters and 1160 warnings were issued to bore owners with the threat of fines if they persist.

Environmentally the use of garden bores are helpful because they replace the function of vegetation that used to draw the water to the surface. Many of the trees in the metro area have been removed to build houses. A further problem with banning garden bores is that many of the older bores if not run for a while need priming. This doesn't sound like a big problem but many of the wells are over 2 metres deep and represent a real safety risk.

So why are we banning garden bores if it makes no difference to the scheme dam levels, it is environmentally disadvantageous, and causes mechanical problems which is a real safety risk to fix. The water authority would not reply to me when questioned about this. I believe the real reason is so it is easier to stop and control users of the scheme water.

Bore Water Suitability In Perth

Perth Bore Water

Which Perth suburbs can have a garden Bore.
As can be seen on the map above only half the metropolitan area is suitable for a garden bore. There are various reasons for this outlined below.

  • the salinity level means the water is unsuitable for garden irrigation
  • the area is close to the ocean or a river are vulnerable to drawing salt water into the aquifer through bore use (e.g. the Cottesloe Peninsula)
  • the area is close to conservation wetlands and other important groundwater dependent ecosystems, which could be adversely affected by bore use
  • the supply may be unreliable due to the soil type (e.g. Guildford Clay)
  • the area has a thin superficial aquifer underlain by a confined aquifer (e.g. the Leederville aquifer), and there may be inadvertent use or waste of the confined aquifer and the potential transfer of groundwater between aquifers. A licence is required to construct a bore and pump water from confined aquifers.
  • there is potential for acid sulphate soils to be exposed to the air and increase groundwater acidity
    the area is over allocated to existing users, and further development of garden bores could present a sustainability risk to the groundwater
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How Do I Measure My Bore Size

For a Traditional Cover
To measure the size of the bore cover use a tape measure and measure the distance across the concrete liner. You need to measure from the outside of the concrete liner to the outside of the other side.

For a Flat Cover
We need you to measure the outside diameter which is the distance from the outside of the concrete liner to the outside of the other side and the Inside diameter which is the distance from the inside of one side to the inside of the opposite side.

It is a good idea to measure this diameter in 2 directions because some of the old liners are bigger on one side.

Do not do this if you believe there is any chance you may fall in to the well. Do not send children to do this task.

If you need assistance contact Perth Bore Covers for help.

 

Govt

Government Policy

Metropolitan Garden Bore Policy (August 2011)
This document explains the garden bore policy for Western Australia.

Using Bore Water Safely Fact Sheet.
This is a south Australian publication but is equally relevant to Western Australia. It explains how and why your bore water should be tested if you intend to use it other than for watering the garden.

Department of Water
This link takes you to the WA Dept Of Water website garden bore information page. It has sprinkler rosters and Bore Installation information.

Department Of Health Bore Water Facts
This link takes you to the Department of Health WA website bore water information page. It has interesting information on contamination, testing and health related topics.

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Bore Covers Australia only deliver free to the Perth Metropolitan area. This area is defined by the postcodes 6000,6001,6003,6004,6005,6006,6007,6008,6009,6010,6011,6012,6014,6015,6016,6017,6018,6019,6020,6021,6022,6023,6024,6025,6026,6027,6028,6029,6038,6041,6042,6043,6044,6050,6051,6052,6053,6054,6057,6058,6059,6060,6061,6062,6063,6064,6066,6069,6090,6100,6101,6102,6103,6104,6105,6106,6107,6108,6109,6110,6111,6112,6147,6148,6149,6150,6151,6152,6153,6154,6155,6156,6157,6158,6159,6160,6161,6162,6163,6164,6165,6166,6167. All other Australian postcodes incur a delivery charge based on their postcode.

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Bore Covers Australia will only deliver within Australia.

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Bore Covers Australia use road freight to deliver their products.

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There is a delivery price calculator on the checkout page. You can see the delivery price before purchasing. The delivery price is calculated on the postcode supplied in the delivery instructions.

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Most orders will be despatched within a few days but Delivery time can takes up to 10 working days from the date your payment is received. Please note that EFT payments take an additional 1-2 business days to process. If stock runs out or a custom size is ordered and the product needs to be manufactured these orders may take up to 3 weeks but typically are closer to 7 days before they get despatched. Deliveries out of the Perth metropolitan area will be subject to the courier’s delivery schedule. Although every effort is made to ship your Order as quick as possible if the expected delivery time is beyond 3 weeks at the time of ordering then you the customer will be notified and have the option to cancel the order. If you elect to proceed with the extended delivery time you forego the option to cancel. If your Product has not arrived after the estimated delivery time, please contact us here. Unless otherwise agreed by us, we will deliver your Products to the address indicated on your Order Confirmation. We will attempt to notify you when delivery is to take place by sms or email. Where delivery is by our courier service and no-one is available to take delivery and the customer has not agreed to have the product left on site, they will leave a card. If it is our courier we will reassign the delivery to a later delivery run and attempt to re-contact you. External couriers may leave the product at their depot for collection. We will use our reasonable efforts to deliver your Products to you within the estimated delivery time indicated on your Order Confirmation; however, we do not guarantee that we will deliver within this time frame. Please Note: In some remote/regional areas our carriers can only deliver bulky items to the nearest transport depot. In these instances you will receive notification that your delivery is available for your collection from the transport depot.