In http://aepsustainability.com/environment/docs/2020-NSR-AnnualReport.pdf http://aepsustainability.com/environment/docs/2019-NSR-AnnualReport.pdf http://aepsustainability.com/environment/docs/2018-NSR-AnnualReport.pdf http://aepsustainability.com/environment/docs/2017-NSR-Annual-Report_1_1503742.pdf http://aepsustainability.com/environment/docs/2016-nsr-annual-report_1-2018.pdf http://aepsustainability.com/environment/docs/2015-nsr-annual-report.pdf http://aepsustainability.com/environment/docs/2014-NSR-AnnualReport.pdf http://aepsustainability.com/environment/docs/2013-NSR-AnnualReport.pdf http://aepsustainability.com/performance/esg/#accordionItemWater http://aepsustainability.com/performance/docs/2021_AEP_SASB_Report_FULL.pdf http://aepsustainability.com/performance/docs/AEPCDPWater2020Survey.pdf these plants conserved an estimated 900 million gallons of water, demonstrating the effectiveness of this management approach.