July 10-23, 2006 field work:
![](./smallpics/field2006/Week%201%20Group1.jpg)
Group photo of the research team during Week 1
![](./smallpics/field2006/Week%202%20Group2.jpg)
Week
2 of the primary research trip this year.
![](./smallpics/field2006/Jenifer%20doing%20field%20parameters.jpg)
Jenifer Bode
![](./smallpics/field2006/Dan%20doing%20field%20parameters.jpg)
Dan
Rosemore
![](./smallpics/field2006/Wally%20doing%20field%20parameters.jpg)
Wally Larson.
![](./smallpics/field2006/Jennifer%20on%20ATV.jpg)
Jennifer on a 6-wheel ATV.
![](./smallpics/field2006/Wally%20on%20ATV.jpg)
Wally on a 4-wheeler.
![](./smallpics/field2006/Jenifer%20&%20Dan%20on%20raft.jpg)
Jenifer
and Dan measured field parameters in the wells
completed below unnamed lake.
![](./smallpics/field2006/Jenifer%20&%20Dan%20on%20raft3.jpg)
They paddled to the raft in a canoe.
![](./smallpics/field2006/Jenifer%20putting%20field%20parameters%20in%20computer.jpg)
Following the sampling, Jenifer
put the field parameters in a spread sheet.
![](./smallpics/field2006/Bill%20checking%20transducer.jpg)
Bill
Herkelrath calibrated the pressure transducers
used prior to the aquifer test.
![](./smallpics/field2006/Bill%20at%20computer.jpg)
Bill analyzed
the data in the trailer during the test.
![](./smallpics/field2006/Aquifer%20test%20discharge.jpg)
Water from the pumped well was discharged near the south pool.
![](./smallpics/field2006/Aquifer%20test%20discharge3.jpg)
The water was channeled into pipes.
![](./smallpics/field2006/Aquifer%20test%20discharge4.jpg)
The pipes were buried beneath the road.
![](./smallpics/field2006/Aquifer%20test%20flow%20meter.jpg)
We measured discharge from the pumped well using a Blancett flow meter and stored the discharge and water-level data on two dataloggers.
![](./smallpics/field2006/Aquifer%20test%20dataloggers.jpg)
Discharge and water-leve were stored on two dataloggers.
![](./smallpics/field2006/Dan%20and%20Landon%20measuring%20oil2.jpg)
Landon Gryzkowski and Dan took the lead in measuring
oil levels during the aquifer test.
![](./smallpics/field2006/Landon%20moving%20tank.jpg)
Landon didn't need the tank cart to move the CO2 tanks into the needed positions.
![](./smallpics/field2006/Dan%20with%20core%20barrel.jpg)
Soil
cores were also collected with the freeze-shoe core barrel.
![](./smallpics/field2006/Barbara%20analyzing%20core2.jpg)
Barbara
Bekins analyzed the soil cores outside the...
![](./smallpics/field2006/Barbara%20analyzing%20core3.jpg)
MSEA
trailer prior to shipment back to the lab for MPN analyses.
![](./smallpics/field2006/Fe-reducing%20microcosm%20removal.jpg)
Wally,
Dan, and Barbara.
![](./smallpics/field2006/Fe-reducing%20microcosm%20removal3.jpg)
Wally,
Dan, and Barbara removed the Fe-reducing
microcosm for inspection. Unfortunately, all
of the sediment in the microcosm fell out during
its removal.
![](./smallpics/field2006/Fe-reducing%20microcosm%20removal2.jpg)
We may be able to use the microcosm
elsewhere in the future, however.
![](./smallpics/field2006/Phil%20at%20GC.jpg)
Phil
Bennett and Geoff Delin conducted several more
unsaturated-zone push-pull tests, building upon
results from the preliminary work done in June.
![](./smallpics/field2006/USGS%20GC.jpg)
The samples were injected directly into the USGS GC.
![](./smallpics/field2006/Phil's%20GC.jpg)
The sub-samples were injected into the University of Texas GC.
![](./smallpics/field2006/Convection%20oven.jpg)
A convection
oven was used to bake out one of the GC
columns, which didn't fit inside either GC.
![](./smallpics/field2006/TRIBES%20class%202.jpg)
During this field session, a group of about 25
students (middle school and high-school
science teachers from across Minnesota) were given
an instructional tour of the site.
![](./smallpics/field2006/TRIBES%20class%201.jpg)
As part of their class, the students then measured water levels in a sub-set of the observation wells and constructed a water-table map.
![](./smallpics/field2006/Fire%20helicopter.jpg)
A small forest fire broke out near the site during our trip. Fire fighting crews including a helicopter
was brought in to fight the fire.
![](./smallpics/field2006/Fire%20helicopter%20pickup.jpg)
The helicopter made multiple runs to pick up water in a bucket from a nearby
wetland/pond and then...
![](./smallpics/field2006/Fire%20helicopter%20drop.jpg)
...dropped
the water on the fire. It was put out quickly.
![](./smallpics/field2006/Jenifer%20packing%20up%20tent2.jpg)
Following the field work, the tent was packed up.
![](./smallpics/field2006/Storage%20locker%20-%20Paul%20Bunyan.jpg)
An equipment inventory was competed in our storage facility in Bemidji.
June 15-20, 2006 field work:
A set of preliminary
unsaturated-zone push-pull tests were conducted
during this time period.
![](./smallpics/field2006/Phil%20mixing%20gas.jpg)
Phil Bennett and Geoff Delin...
![](./smallpics/field2006/Phil%20mixing%20gas4.jpg)
...mixed
the gas in a...
![](./smallpics/field2006/Mixing%20bag3.jpg)
...teflon
bag prior to injection.
![](./smallpics/field2006/Sample%20tubing%20from%20well2.jpg)
The gas mixture was then directlyinjected into a vapor port, allowed to dissipate for a while.
![](./smallpics/field2006/Sample%20tubing%20from%20well.jpg)
The gas was then pumped back out again from the same port and directly injected into a gas chromatograph (GC) in the trailer.
![](./smallpics/field2006/GC%20heat%20reduction.jpg)
The tubes installed from the air conditioned to
the top of the GC were for heat reduction, by the
way.
![](./smallpics/field2006/Phil%20collecting%20sample.jpg)
Periodically, samples were collected from vapor ports overlying or underlying the injection port.