Guidance

Site-specific quality numeric permit limits: discharges to surface water and groundwater

How the Environment Agency sets and assesses discharge quality numeric limits in environmental permits.

• From: Environment Agency
• Published: 8 May 2018
• Last updated: 17 January 2019 — See all updates

Documents

Site-specific quality numeric permit limits: discharges to surface water and groundwater

Ref: LIT 10952

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Details

This guide is for operators of standalone water discharge activity and point source groundwater activity permits. Standalone means the activity is not part of another regulated facility such as a waste operation, installation, radioactive substances activity, flood risk activity or mining waste operation.

The guide explains:

• the 4 types of compliance limit
• how we set each of these types of limits
• how we assess compliance against the limits

Published 8 May 2018
Last updated 17 January 2019 + show all updates

1. 17 January 2019

   Updated the mean compliance limit section. We assess compliance with mean limits using pre-scheduled samples taken in any 12 consecutive months.

2. 8 May 2018

   First published.