Planning Applications

Flooding Report - Soil Type

Soil type

The soil is predominantly London clay to a depth in excess of 2.5 metres and therefore very poor for drainage. Water collects and remains on the surface for weeks due to the impermeable nature of the ground.

Rainfall Rates

The standard rainfall rates, for this area, for calculating drainage requirements are as table 1

Table 1

Storm EventRain mm/hr 100 year return periodRain mm/hr 100 year return period + 30%
15 min winter 97 126
30 min winter 64 83
60 min winter 40 52
120 min winter 25 32
180 min winter 18.5 24
240 min winter 14.6 19

Newsletter Subscription

We will, from time to time, want to communicate information to residents without it appearing on our website. Therefore, if you have not given us your e-mail address in the past, can you please click this button and supply it now. All e-mail addresses will be kept securely and will not be disclosed to anyone else. Due to a large amount of fake subscriptions we are now asking for your road name and postcode in order to validate you are a real person. This information will never be made public and will only be used to validate your subscription.
Name: Email:
Road Name: PostCode: