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Sources of flooding, sewers and SuDS
Main river: the larger rivers and those designated as having a critical impact on flood risk. The Environment Agency is responsible for these.
Sea: flooding from tidal water.
Ordinary watercourse: smaller watercourses, ditches and drains or culvert . If any work is required in or around the watercourse advice must be obtained from your Lead Local Flood Authority.
Surface Water : Water that does not make it into a watercourse or drain. Usually follows heavy rainfall and can come from hard surfaces such as roads, roofs and patios and from already saturated agricultural land and sports fields.
Groundwater: water present underground.
Sewerage Types & Owners
Public sewer: there are three types:
- surface water only, taking rainwater mostly from roofs, patios, roads and drives and serving more than one property;
- foul only (sewage), this takes only waste water from bathrooms, toilets and kitchens and should not react to rainfall; and
- combined, which takes both surface water and foul.
In the main, the public sewers are the responsibility of Northumbrian Water.
Highway drainage: Rain water enters through gully grates in the road or to the side of the carriageway. Any drainage structure such as a culvert, which passes beneath the highway will also be the included. The local authority is responsible for the highway maintenance of the gullies and drains.
Private drainage: this is the responsibility of the person who owns the property it drains into.
Land drainage: predominantly drainage from agricultural land and playing fields to a water course and is the responsibility of the landowner.
Roadside ditches: fed by a variety of sources and are the responsibility of the landowner adjacent to the ditch .
SuDS are drainage systems that are considered to be environmentally beneficial and contribute to improvement of open spaces where people live. SuDS are designed to mimic nature and are a way of managing flooding, pollution and biodiversity.
If you are having problems establishing responsibility and need advice please contact firstname.lastname@example.org or call 0191 211 6848 (Office hours Mon - Fri, 8.30am - 4.00pm)