HP identifies and tests for priority substances of concern in water discharge based on the EU Water Framework Directive. We monitor the quality of discharge emissions to water at all sites where monitoring is required based on local permit requirements, including our imaging and printing product manufacturing facilities. Water discharge quality at these sites is verified by an independent third party to ensure we meet or exceed all applicable legal requirements, local codes, and regulations, as outlined in the HP Environmental, Health, and Safety Policy. 

Additionally, all HP operational sites are required to implement enterprise-wide procedures to prevent unauthorized pollutant discharge into wastewater and to prevent untreated wastewater discharge directly into surface water or groundwater. All HP latex inks are made in a factory using 100% reclaimed water. All water used for our latex inks undergo an in-house water treatment process to meet specifications for ink quality. The factory performs online, real time organic and inorganic testing weekly to ensure that the purity of the treated reclaimed water meets specifications. 

In 2024, HP had no violations for non-compliance with local discharge limits.¹

¹ Water discharge and/or evaporation rates are estimated. Upon receiving all invoiced water withdrawal and discharges and performing estimations on the withdrawn water to fill in gaps, the average rate of discharge for those sites with invoiced withdrawals and discharges, where the rate is not 100%, is calculated. The sites comprising the average rate of discharge are reviewed for reasonableness of inclusion. The discharge rate is applied to all sites in the portfolio.