TNFD C2.1: Volume of water discharged split into:
• Total
• Freshwater; and
• Other.
Including:
• Concentrations of key pollutants in the wastewater discharged, by type of pollutant, referring to sector-specific guidance for types of pollutants; and
• Temperature of water discharged, where relevant.
For EN/HB:
When reporting this core global metric for construction projects, an organisation should break down discharges by:
• The volume from point sources and the volume from non-point sources; and
• Destination (surface water, groundwater, seawater, or third parties (e.g. the sewerage network, other users)).
Organisations should include an estimate or measurement of unintended discharges, including water not accounted for across withdrawal, consumption and discharge, and by type of discharge, to the extent known.
Pollutants to report under this core global disclosure metric should include concrete washwater and per- and polyfluorinated substances (PFAS).
Guidance for RE/RS:
When reporting this core global disclosure metric for properties under management, an organisation should include:
• The floor area (m2 and % of total) for which the organisation has discharge data and the volume discharged from that area;
• For the area for which there are discharge data:
o the volume of wastewater discharged without treatment;
o the volume treated on-site or by the organisation elsewhere; and
o the volume discharged to a third party for treatment (e.g. the municipal sewerage company);
• The destination (surface water, groundwater or seawater) of wastewater discharged untreated and the destination (surface water, groundwater, seawater, or third parties) of wastewater treated onsite or by the organisation elsewhere; and
• For the volume treated on-site or by the organisation elsewhere, and the volume discharged untreated if available: the concentrations of dissolved solids and suspended solids, and the temperature where relevant.
Pollutant calculations should be based on an average over the reporting period.
Utilities , Nuclear & Thermal: In reporting this core global disclosure metric, an organisation should include thermal discharges
Oil & gas: In reporting this core global disclosure metric, the organisation should include:
• The volume of produced water and flowback generated. This should be broken down by percentage:
• Discharged;
• Injected; and
• Recycled.
Pollutants to report under this core global disclosure metric include:
• Hydrocarbons in both produced water and process wastewater (mg/litre); and
• Chemical additives, metals, naturally occurring radioactive material (NORM) and salts.
In reporting this core global disclosure metric, the organisation should include the number of incidents of non-compliance associated with water quality permits, standards and regulations. Typical parameters of concern include hydrocarbons (including oil and grease), chemical oxygen demand (COD), biochemical oxygen demand (BOD), sulphides, ammonia, phenols, total suspended solids (TSS) and total dissolved solids (TDS).
ESRS E3-4 28b AR 32
GRI 303-4, GRI 303-4-a: Total water discharge to all areas in megaliters, and a breakdown of this total by the following types of destination, if applicable:
i. Surface water;
ii. Groundwater;
iii. Seawater;
iv. Third-party water, and the volume of this total sent for use to other organizations, if applicable.
GRI 303-4-a: A breakdown of total water discharge to all areas in megaliters by the following categories:
i. Freshwater (≤1,000 mg/L Total Dissolved Solids);
ii. Other water (>1,000 mg/L Total Dissolved Solids).
GRI 11: Oil and Gas Sector 2021
SASB EM-EP-140a.2
CDP Water Security
W1.2b What are the total volumes of water withdrawn, discharged, and consumed across all your operations, how do they compare to the previous reporting year, and how are they forecasted to change.
W1.2i Provide total water discharge data by destination
ICMM Table 1: Total discharge by destination type (surface water, groundwater, seawater, and to third parties) and water quality (high and low) for each site
ISO 14046 - quantities of water used (including water withdrawal and release)