This dataset provide details of permit details as required under the Environmental Permit Regulations. Information is held for all permit holders and covers all substances that are controlled. The data come from Natural Resources Wales public Register. The data set contains 3 tiers of information:
Tier 1 - Site and General
Information relating to the permit operator, discharge address and type. The date of permit issue, effective and revocation. Information where the effluent enters the environment (such as river, coastal, groundwater) for each permit.
Tier 2 - Outlet and release
Data on the effluent type e.g. Sewage effluent, Storm Overflow, Trade. The location is supplied for the effluent and the outlet in OS Nation Grid Reference format. Further detail is provided on the permit type and treatment type.
Tier 3 - Determinand /release detail Limits
Further detail is provided on the amount that can be discharged and in which time period in months. Release details/determinands are the substances and numerical limits that make up the effluent. This could include chemical, biological, and physical limits. The permitted limits are included for each determinand /release detail. Data is provided for each effluent and may contain one or more determinands depending on the complexity of the discharge.