220724 — 25/10051/AIR | Planning Portal IoM

Subject: RE: 25/10051/AIR: Consultee Request From: John Parsons [email protected] Date: 2025-05-21 08:50:47+01:00

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Thanks Malcolm appreciate it.

Regards

John

From: Cowin, Malcolm (FMD) [email protected] Sent: 21 May 2025 08:11 To: John Parsons [email protected] Cc: Crowe, Charlotte [email protected] Subject: RE: 25/10051/AIR: Consultee Request

Hi John,

Thanks I will complete the section 20 consent and send it across today.

Kind regards,

Malcolm

From: John Parsons <[email protected] mailto:[email protected] > Sent: 20 May 2025 17:08 To: Cowin, Malcolm (FMD) <[email protected] mailto:[email protected] > Cc: Crowe, Charlotte <[email protected] mailto:[email protected] > Subject: RE: 25/10051/AIR: Consultee Request

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Hi Malcolm,

Yes this correct the manhole highlighted will have a hydrobrake. If you scroll through the drainage drawings there is a large scale plan that confirms this. Exact below.

With regards the velocity of the headwall this is confirmed on the headwall drawing as 1.29m/s. Exact also below.

Regards

John

From: Cowin, Malcolm (FMD) <[email protected] mailto:[email protected] > Sent: 20 May 2025 15:05 To: John Parsons <[email protected] mailto:[email protected] > Cc: Crowe, Charlotte <[email protected] mailto:[email protected] > Subject: RE: 25/10051/AIR: Consultee Request

Hi John,

Thanks, I assume there is a more detailed plan somewhere. The snip of the drawing below only shows one pipe into the attenuation tank I assume the hydrobreak is in the MH highlighted and only allows a certain flow forwards rest goes into tank and is released later what flow recedes? So just to double check the velocity of the water heading to the outfall is no greater than 1.5m/s?

Kind regards,

Malcolm

From: John Parsons <[email protected] mailto:[email protected] > Sent: 20 May 2025 14:55 To: Cowin, Malcolm (FMD) <[email protected] mailto:[email protected] > Cc: Crowe, Charlotte <[email protected] mailto:[email protected] > Subject: RE: 25/10051/AIR: Consultee Request

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Hi Malcolm,

Plan attached. Its buried in one of the reports so would take a bit if finding. This should answer your query.

Regards

John.

From: Cowin, Malcolm (FMD) <[email protected] mailto:[email protected] > Sent: 20 May 2025 14:49 To: John Parsons <[email protected] mailto:[email protected] > Cc: Crowe, Charlotte <[email protected] mailto:[email protected] > Subject: RE: 25/10051/AIR: Consultee Request

Hi John,

I have been trying to find the drainage plan amongst the documents or the original application without look could you please send it through. I am just trying to see what is feeding into the pipe is it just from the attenuation tank or is it taking any direct runoff?

Kind regards,

Malcolm

From: John Parsons <[email protected] mailto:[email protected] > Sent: 20 May 2025 08:46 To: Cowin, Malcolm (FMD) <[email protected] mailto:[email protected] > Cc: Crowe, Charlotte <[email protected] mailto:[email protected] > Subject: RE: 25/10051/AIR: Consultee Request

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Hi Malcolm,

Further to my email below please find attached our engineers updated drawing in line with the queries raised.

I trust that this information allows you to progress the matter.

I have copied in Charlotte at planning so that she has the latest information.

Many thanks

Regards

John.

From: John Parsons Sent: 16 May 2025 14:48 To: Cowin, Malcolm (FMD) <[email protected] mailto:[email protected] > Subject: RE: 25/10051/AIR: Consultee Request

Hi Malcolm

I was just chasing this information from the engineers morning, might get something this afternoon, failing that it will be early next week.

This info should address the queries raised including the angled headwall.

Regards

John.

From: Cowin, Malcolm (FMD) <[email protected] mailto:[email protected] > Sent: 16 May 2025 14:16 To: John Parsons <[email protected] mailto:[email protected] > Subject: FW: 25/10051/AIR: Consultee Request

Hi John,

I am being chased on the discharge of this condition. Have you sent through any information on the section 20 application apologies if you already have. I would like to see what the velocity of discharge is and if energy dissipation is required. Also could the head wall be angled downstream slightly.

Kind regards,

Malcolm

From: Crowe, Charlotte <[email protected] mailto:[email protected] > Sent: 16 May 2025 11:51 To: Cowin, Malcolm (FMD) <[email protected] mailto:[email protected] > Cc: DEFA, Planning Conditions <[email protected] mailto:[email protected] > Subject: 25/10051/AIR: Consultee Request

Good morning Malcom,

Further to my consultation sent on 14.04.2025, please could you take a look at the information that has been provided in relation to the below:

25/10051/AIR Information in relation to condition 19 of PA 22/00675/B providing details for the construction of the headwall:

https://pbc.gov.im/online-applications/applicationDetails.do?activeTab=documents&keyVal=SUPMJWIP0EE00

The condition states:

Work shall not commence on construction of the headwall for the outfall to the River Glass until full details, including facing materials, have been submitted to and approved in writing by the Department. Development shall be carried out in accordance with the approved details.

Reason: In the interest of visual amenity and to prevent increased risk of flooding and pollution.

Can you please confirm if you are happy with what has been provided so that I can now finalise the report?

Thank so much.

Kindest Regards

Charlotte

Charlotte Crowe

Planning & Building Control Directorate

Department of Environment, Food & Agriculture (DEFA)

Murray House | Mount Havelock | Douglas | Isle of Man |IM1 2SF

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