Comment

Representation ID: 2079

Received: 14/07/2021

Respondent: Norfolk County Council - LLFA

See attachments for full response.
Mitigation required for heavy constraints. Significant information required at a planning stage.
"1.] At risk of surface water flooding?: Yes
* 3.33% AEP Event [Extent]: No flooding present
* 3.33% AEP Event [Depth]: No flooding present.
* 1.0% AEP Event [Extent]: No flooding present
* 1.0% AEP Event [Depth]: No flooding present.
* 0.1% AEP Event [Extent]: Moderate flooding
* 0.1% AEP Event [Depth]: 0.00- 0.30cm.
2.] Internal & external flooding?:
* On-site: No
* Within proximity to site (~500.00m): No
3.] Watercourses [Online ordinary watercourses or mains rivers]?:
* On-site: No
* Within proximity to site (~100.00m): Yes|Main river
4.] Surface water sewer systems?:
* On-site: No
* Within proximity to site (~100.00m): No
5.] Source Protection Zone?: No
6.] Internal Drainage Board?: No IDB referenced
7.] The site predominantly has superficial deposits of SAND AND GRAVEL. Comments on infiltration potential are dependent on a complete geotechnical investigation, including BRE365 Soakaway Testing. Where possible, surface water infiltration should be utilised." "The on-site flood risk is a moderate flow path in the 0.1% AEP event, dissecting the site south-north in the west of the site. Flow lines indicate this flood water flows north off of the site, contributing to a larger flow path west and north of the site. We advise this must be considered in the site assessment.
A large area of the site is unaffected by flood risk and has the potential to be developed."
Assessment: Amber