Try that pH color
Try that pH color
pH test colors
pH test colors
Sampling in the circle
Sampling in the circle
Gretchen, Angela, Al
Gretchen, Angela, Al
Comparing samples on the bridge
Comparing samples on the bridge
On the bridge
On the bridge
Look down with ripples
Look down with ripples
Look up
Look up
Nathan and Gretchen at the tannin creek
Nathan and Gretchen at the tannin creek
Where were we testing?
Where were we testing?
Various steps to water
Tannin still
Tannin still
Try this color
Try this color
