rainwater to highway drain

[Bluebaron]

I building on a garden plot. the existing house drains surface water in the foul drain.

 

I can't see any new surface drains nearby except a roadway drain right outside my house. 

 

I'm assuming this is not connected to the foul system.

 

I don't have any room for a soakaway on the plot, so assuming i get the necessary permissions can i connect to that?

 

 if not the ill have to go into the foul system (again with relevant permissions). Although to be honest this would be much simpler and probably cheaper.

[JohnMo]

You could always collect, process and use rainwater for grey services. So harvest it.

[Big Jimbo]

If it is a rainwater system, then you can connect with permission. If you want to go into the foul system, then expect resistance from the water authority.

[Oz07]

If its combined system and you've no on site options I don't see how water board can deny permission. Especially if you had a previous building draining surface water through it. Water maps being so inaccurate will help you here. If they don't show any separate storm drains in the road what else can they do. 

[Roger440]

2 hours ago, Oz07 said:

If its combined system and you've no on site options I don't see how water board can deny permission. Especially if you had a previous building draining surface water through it. Water maps being so inaccurate will help you here. If they don't show any separate storm drains in the road what else can they do. 

 

My first house was on a combined system, as was the whole estate. When i built a garage, i was point blank, not permitted to connect it to the existing drains. That was 15 years ago. I highly doubt its got easier. And it shouldnt be easier.

[Oz07]

10 hours ago, Roger440 said:

 

My first house was on a combined system, as was the whole estate. When i built a garage, i was point blank, not permitted to connect it to the existing drains. That was 15 years ago. I highly doubt its got easier. And it shouldnt be easier.

Ive been approved multiple times must be different depending on water company

[Temp]

It's very variable depending on the council and water co. 

 

Was there a condition in your planning permission saying you must get your surface water plans approved? We had one. 

 

Soakaways don't work on our soil type and during the consultation period the water co had said that they "wouldn't want us to make local flooding worse". We ended up proposing a rainwater storage tank with overflow into a pipe running along the edge of the road (piped ditch). This was approved by the planners even though it doesn't actually provide storm water attenuation. These days they might ask for that.

 

I would propose discharging into the existing combined system and see what they say.

 

If they object propose putting surface water into the roadside drain/pipe.

 

If they object to that propose a storm water attenuation tank with discharge into the roadside drain/pipe.

 

If they still object propose rainwater recycling tank.

 

If space is tight I believe storage tanks can be closer to foundations than soakaways.