Testing water for dissolved oxygen
![A picture of testing water for dissolved oxygen](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/2016-09-09_analyzing-groundwater-quality-jurupa-valley.jpg?itok=6K5RlaCb)
Detailed Description
Josh Johnson tests water from the well for dissolved oxygen. The test is one of many performed on site to help the field crew know when to collect samples that will be sent to the laboratories for further testing.
Sources/Usage
Public Domain.