FOI release

Discharge to Groundwater Permit - Test Requirements Query

Case reference EIR2026/42343

Received 21 August 2026

Published 7 September 2026

Request

We run a small sewage treatment plant which serves a number of properties in our village. We have the above permit for the plant (attached), however, I cannot see anywhere on it, or find on the web, the test limits we need to ensure we comply with, for example; * Ammoniacal Nitrogen as N * Biochemical Oxygen Demand * Suspended Solids Can you confirm the test requirements for the water discharged from our plant along with any other requirements.

Response

We respond to requests for recorded information that we hold under the Freedom of Information Act 2000 (FOIA) and the associated Environmental Information Regulations 2004 (EIR).

Thank you for your email.

Please find attached discharge permit requested.

The emissions limits for the permit are:
Max daily flow 11.0m3/day
Biochemical Oxygen Demand 20mg/l
Ammoniacal Nitrogen 10mg/l

We hope that we have correctly interpreted your request.  If you have any further questions, please contact enquiries_THM@environment-agency.gov.uk

Please refer to the Open Government Licence which explains the permitted use of this information. Information Warnings: (i) Personal Data in the Information is exempt from the Open Government Licence. (ii) It is the responsibility of the licensee to ensure that data they hold is accurate and up to date.

Documents

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