Winter Groundwater Monitoring
Infiltration-based drainage systems are increasingly required by Arun and Adur District Councils as part of sustainable development strategies. However, to implement these systems and discharge planning conditions, robust winter groundwater monitoring and BRE 365 soakage testing are often mandated.
At H2Ogeo, we offer a fixed-fee package for developers and planning consultants across the Arun and Adur districts—providing comprehensive evidence to satisfy local planning requirements.
Why Winter Groundwater Monitoring Is Required
Winter groundwater monitoring is a critical component of infiltration feasibility studies, particularly in flood-sensitive or clay-rich areas. Local planning authorities, including Arun and Adur District Councils, require at least three months of winter groundwater data to confirm:
That the water table is deep enough to allow for soakaway drainage.
That infiltration will not pose a risk to property, highways, or the wider environment.
That long-term SuDS strategies are appropriate for the site.
Monitoring typically needs to take place between November and April, when the water table is at its seasonal high.
H2Ogeo has a package of work available to clients that delivers on a technical level whilst keeping costs to a minimum.
BRE 365 Soakage Testing: A Planning Essential
In addition to monitoring groundwater, BRE 365 infiltration (soakage) testing is used to determine whether the soil on site is suitable for soakaways. This is essential for:
Designing effective drainage layouts.
Demonstrating SuDS compliance.
Satisfying conditions imposed under flood risk or drainage planning requirements.
Without this testing, developers risk costly redesigns or refused discharge applications.
H2Ogeo’s Fixed-Fee Monitoring & Testing Package
Our winter groundwater monitoring and BRE 365 testing package includes everything you need to meet planning conditions—without unexpected costs or delays.
Contact H2Ogeo today to find out more.
Why Choose H2Ogeo?
Hydrogeological Experts: Decades of experience in groundwater, SuDS, and soil infiltration science;
Local Knowledge: Familiar with the geology, groundwater levels and drainage issues across Sussex;
Planning-Focused Reporting: All reports are tailored for discharge of planning conditions;
Developer-Friendly: We liaise directly with your planning or engineering teams to avoid delays.
Book Your Monitoring Early
The window for winter groundwater monitoring closes in April and groundwater levels should be monitored over the Winter period. There is no issue installing the boreholes before winter so you are ready when winter comes. Don’t miss your opportunity to get the data needed to move your project forward.
Contact H2Ogeo Today to book discuss your project needs.
