Coso Hay Ranch Project

Coso Operating Company/Hay Ranch Hydrologic Monitoring

Data contained herein are preliminary and subject to revision.

Environmental Impact Report Documents

Monthly Monitoring Reports

EIR/HMMP Updates

Quarterly Monitoring Reports

2021 2020 2019
2018 2017 2016
2015 2014 2013
2012 2011 2010

2021 Monthly Monitoring Reports

2020 Monthly Monitoring Reports

2019 Monthly Monitoring Reports

2018 Monthly Monitoring Reports

2017 Monthly Monitoring Reports

2016 Monthly Monitoring Reports

2015 Monthly Monitoring Reports

2014 Monthly Monitoring Reports

2013 Monthly Monitoring Reports

2012 Monthly Monitoring Reports

2011 Monthly Monitoring Reports

2010 Monthly Monitoring  Reports

2009 Monthly Monitoring Reports

For more information about the Coso/Hay Ranch water monitoring program,
please contact the Inyo County Water Department at 760.878.0001.