Salt Slug Procedure
Revision as of 10:01, 9 June 2019 by 172.18.0.1 (talk) (Created page with "===Prep=== * conductivity meter * 3pcs 1 Liter bottles * 1pcs precisely known volume * 1 pcs precisely measured salt * 10-20 cc syringe * spare C batteries * bucket? or mixing...")
Prep
- conductivity meter
- 3pcs 1 Liter bottles
- 1pcs precisely known volume
- 1 pcs precisely measured salt
- 10-20 cc syringe
- spare C batteries
- bucket? or mixing tank bigger than 1L
At site procedure
- measure steady state conditions at upstream (eC & temperature)
- measure steady state conditions at downstream (eC & temperature)
- Fill known volume and dump into each 1 liter volume
- pour packet of salt into one of the known volumes
- well mix the salt slug
- extract 10 mL from well mixed salt slug and squirt into one of the two remaining 1 liter volumes
- secure conductivity meter at downstream location and start logging
- observe background levels
- pour salt slug in at upper reach location
= k calculation
- keep 2 1L bottles at stream temperature and well mix the one with salt solution (salted solution is the Secondary Solution).
- pour the natural stream water into bucket
- in 2 to 5 mL increments add Secondary Solution water to mixing bucket and measure eC & Temperature after mixing
- record in fielbook: mL added, eC & temperature in the mixing tank.
- repeat for at least 3 samples. Literature suggests starting with 2mL per bucket dump.
