Browse Forums Building A New House 1 Jun 04, 2007 9:08 am One of our neighbour's application was knocked back from council, in the letter it talks about some "On-Site Detention System". See quote below:
"The property is within an area identified as having drainage problems. In accordance with Council's policy, new dwellings within this area that result in an additional 150m2 of hard surface area require the provision of an On-Site Detention system. To clarify whether on-site detention is required to be provided a scaled plan that clearly indicates all current impervious areas as well and a plan with dimensions that indicates the proposed impervious area should be submitted. " Looks like it's not going to be approved easily without some more engineering or whatever hydraulic details. Just curious, any one know what a "On-Site Detention System" looks like? Cheers Allan Re: What is "On-Site Detention System"? 2Jun 04, 2007 9:10 am My interpretation is that it means that the rejected plan, with all its hard surface, will let the water run off outside the property. So "on site detention" means that they need to capture the water on their own property and deal with it, not "pass it on" to stress other nearby drains. Re: What is "On-Site Detention System"? 3Jun 04, 2007 10:18 am We had "on site detention" when I went to school.. or was that "permanent detention" Re: What is "On-Site Detention System"? 5Jun 05, 2007 10:44 am I thought On-Site Detention System is almost compulsory these days!
Cabinfever is right. Hydraulic Engineers need to come onsite and give a 'plan'! Your builder should know all about this. It does hurt the wallet a bit though - devank Re: What is "On-Site Detention System"? 6Jun 05, 2007 11:36 am Many councils are now asking for detention systems to be included to release stormwater slowly into the system especially where the infrastructure is inadequate to handle peak loads.
Some councils, for example with a 2 lot subdivision, are also asking for a $ contribution as a requirement on the planning permit. Peter Clarkson - AusDesign Australia www.ausdesign.com.au This information is intended to provide general information only. It does not purport to be a comprehensive advice. Re: What is "On-Site Detention System"? 7Jun 05, 2007 3:17 pm My reading of it is that they require some sort of soakwell or maybe even a septic system. I think our septic system was called an onsite detention system. Whatever, it sounds like $$$$'s
Let me count the ways I love council..... 3xb Re: What is "On-Site Detention System"? 8Jun 06, 2007 7:39 am The request will be in regards to storm water. Peter Clarkson - AusDesign Australia www.ausdesign.com.au This information is intended to provide general information only. It does not purport to be a comprehensive advice. Re: What is "On-Site Detention System"? 9Jun 13, 2007 11:57 pm Thanks for all the information.
I guess our poor neighbour didn't do their home work. And now I think know why that block of land was emptied for almost 2 years. Wonder how did the houses around that land pass the council application, must have spent lots of $$ on the detention system. Cheers Allan http://building-our-first-house.blogspot.com/ Re: What is "On-Site Detention System"? 10Jun 14, 2007 5:00 pm We have to have a detention system installed as part of our rainwater system. All it is in our case is a modified 3 section Stratco water tank with some special pipes. Cost us around $450 (+ just over $2k to install it along with our stormwater system). Re: What is "On-Site Detention System"? 11Mar 26, 2009 4:18 pm are there different ways to construct an OSD? from the council I think it is mandatory already? how much space will it occupy? approx dollar value? (thanks to double07 for some input) Re: What is "On-Site Detention System"? 12Mar 26, 2009 6:00 pm On site detention for us where we are intending to build (kuringai, Sydney) is governed by a whole series of formulas related to site area and location in the catchment. For us it amount so putting the ability t o retain 20,000 litres of water, cost for teh tanks and all the ancillary bits is $8246 incl GSTdelivered, then there is the plumbing perhaps around 2-3 k bucks. The output of the calculations is also the release rate. The intention is to reduce the surge into the stormwater system. So the tanks act as a buffer and allow the water to trickle out slowly turning a downpour effectively into a sunshower for the council stormwater system. Dan C Re: What is "On-Site Detention System"? 14Mar 26, 2009 7:01 pm Ours will cost us about $18,000. Bl88dy council. It's to catch the overflow from the TWO yes TWO 3,500 litre water tanks they want us to have. IF they (the tanks) overflow the Council wants the overflow to run through 10 lineal metres of pipes to a detention pit in the backyard so that the overflow will go into that and not across the back neighbours block into a stormwater drain in their street. Mind you, WE have a stormwater drain a few metres from our house in the street that flows downwards. The pit had to be designed and planned by a Hydraulics engineer ($$'s).Our block has a slight slope to the back left hand corner where the pit will be situated. Not to mention that the original house has been here for 50plus years and there has never been a problem yet. Also not to mention that this is only a problem when new dwellings are built, so therefore I am lead to the conclusion that at OUR expense we gradually will be FIXING the stormwater system that is run/owned/governed/whatever you call it by the council. That's my rant, sorry. Not happy Jan. edit for spelling! www.themaxbuild.blogspot.com forum.homeone.com.au/viewtopic.php?f=31&t=20717&start=300 www.leahspaperpassion.blogspot.com Re: What is "On-Site Detention System"? 15Mar 26, 2009 7:14 pm Hi All, We also built in Kuringai... needed a retention & detention system... all underground. I thought we had finished with the costs... but part of the DA is that you are required to add covenants to your title to ensure any future owner is forced to maintain the system. I am currently looking at a $1,700 legal bill to add these new covenants... Apparently Kuringai is the only council that does this... aw sucks ! We are loving living in our new home ! https://forum.homeone.com.au/viewtopic.p ... &start=315 Re: What is "On-Site Detention System"? 17Mar 27, 2009 8:41 am Judie Rikster, I did not need to hear that. I guess that means we'll have to do the same bl**dy thing! If our house ever gets finished ... Judie Sorry Judie... only found out about it myself when I applied for the occupation certificate. Have a good look at your DA, search for Covenants. We are loving living in our new home ! https://forum.homeone.com.au/viewtopic.p ... &start=315 Re: What is "On-Site Detention System"? 19Mar 27, 2009 8:50 am Allan, If you go to this website you will see a very pretty diagram on an onsite detention pit, which will answer your original question http://www.ausdrain.com/ausdrain/html/o ... agram.html www.themaxbuild.blogspot.com forum.homeone.com.au/viewtopic.php?f=31&t=20717&start=300 www.leahspaperpassion.blogspot.com Once you know the basics, the rest is easy. Read my post in the thread linked below. viewtopic.php?p=1919271#p1919271 2 19497 It's all about wireless, self install now. The cost/benefit of wired setups for the house are no longer what they used to be. Lots of wireless options. Eufy, Arlo and… 2 9780 the sun master is the solar heating to "warm" the water in the tank the S26 is your hot water system which will heat the water (25 degrees?) so with both turned on you… 2 12516 |