Project Baseline-Tahoe: First Official Dive

Observation Date:	11 August, 2012
Dive Team Members:	Marc Briseno, Todd Kincaid, Laura James, Vanessa Belz, Martin McClellan
Begin Time: 10:00a	End Time: 11:30a     Bottom Time:  22min
Weather Conditions:	Clear, Calm, Sunny
Wind	Direction : N/M Speed: N/M  Duration: N/M
Water Conditions
Surface	Flat w/tremendous boat chop
Last 24 hrs:	Calm, Afternoon Thunderstorms, temp mid 80's
Temperature:	Surface- 66f  At Depth- 54f [75'] [Mild thermocline at 22' (60f) and major thermocline at 50' (58f)]
Visibility:	Vertical- 30'-35' Horizontal- 20'-25' on bottom a bit better mid H20 to surface
Current:	Direction- Southerly longshore SE Speed- 30 feet per minute
Site Depth Benchmark reading: 80ffw by Tekna Depth [Bench Mark Depth Gauge] - 77' Uwatec
Animal & Plant Life
Fin Fish	Description : N/M Quantity: 0
Copepod	Est. Density: Low up to first major thermocline at 50' then high throughout
Invasive Species	Saw none
Mysis Shrimp	Est. Density: N/M
Team Observations/Comments: This was an exciting day as it was NMDE's first official Project Baseline Tahoe dive and joining the NMDE team were Todd Kincaid, VP GUE and Vanessa Belz, Project Baseline Director GUE and Laura James, Seattle based videographer and GUE diver.  The objective was to set up the SS Tahoe and the Sand Harbor Site.  This was the first dive of the day and it took place at our SS Tahoe starting point in what is now approximately 78' at the sand.  This is the location for all of NMDE's runs out to the Steamer Tahoe.  At the bottom, we secured a permanent altitude adjustable depth gauge (Tekna Zero Adjust) which we zeroed at the surface and a thermometer gauge.  These gauges are mounted to an aluminum board and secured to our depth benchmark preventing the gauges from moving.  We then established visibility markers at 30-40-50 feet from the depth benchmark location however we were very dissapointed as the visibility was well below 30' and we will have to go back and place a 20 foot visibility marker.  These markers were placed with the use of a physical tape measure.  Upon arrival at our station, we noticed significant algae build up on our line approaching the surface. It was measured to be 1.5" thick at the zone from 30 feet to the surface.  The line was cleaned along with the benchmark buoy and a photo was taken as a baseline photo of the white buoy suspended.  This dive had two teams, Marc Briseno and Martin McClellan doing the work of establishing the PB station and Todd Kincaid (video support) and Laura James (videographer).  Project Baseline Director, Vanessa Belz was our surface support and boat tender during this operation. Dive was short in duration due to the schedule for the day, 22min at 77' with water temps at 54f.

NMDE Team Dive - Assess wood debris above SS Tahoe Site

Observation Date:	24 July, 2011
Dive Team Members:	Briseno, McClellan, Parker
Begin Time:10:00	End Time:11:45
Weather Conditions:	Clear, Calm, mid 70's
Wind	Direction : N/A Speed: N/A Duration: N/A
Water Conditions
Surface	Flat
Last 24 hrs:	Flat, Calm
Temperature:	Surface-65F At Depth-48F
Visibility:	Vertical-20' minus Horizontal-30' minus [0-40 ] 30' plus [40-105]
Current:	Direction-N/A Speed-N/A
Site Depth Benchmark reading: 26 ffw [Taken at the 20' benchmark]
Animal & Plant Life
Fin Fish	Description : N/A Quantity: 0
Copepod	Est. Density: Extremely High
Invasive Species	Mysis Shrimp - Density highest between 50 and 80 feet
Mysis Shrimp	Est. Density: Medium
Team Observations/Comments: The team in preparation for several mapping dives forthcoming during August and September, took this dive opportunity to assess the newly discovered lumber debris field between 70 and 120'. This lumber pile is very extensive and is of cut timber, milled lumber and discarded logs from the buildings on the Glenbrook Shore during the 1850 - early 1900's time period. Upon initial assessment, this lumber debris field begins somewhat above the SS Tahoe in an area estimated to be in an area of about 4 acres. It is unique as there is no other lumber debris of this quantity this far from the inside coordinates of Glenbrook Bay. This debris field is approximately in line with Deadmans Point. We will continue to explore this area for a more exact interpretation of its significance. Our dive utilized scooters, travel stages and back gas - 32% EAN with a run time of 93 minutes to a maximum depth of 105' - average depth was 34'. We did some maintenance work on our 20' decompression station and secured an additional auger as an anchor point for support boat.

NMDE Team Dive - Assess Habitat Area - Glenbrook Bay - SS Tahoe

Observation Date:	5 February, 2011
Dive Team Members:	Novaes, McClellan, Frasier(Capt.)
Begin Time:08:30:00	End Time: 10:30:00
Weather Conditions:	Clear
Wind	Direction : N/A Speed: N/A Duration: N/A
Water Conditions
Surface	Flat - Ripple
Last 24 hrs:	High Pressure/Unseasonably Calm
Temperature:	Surface- 41F At Depth- 41F
Visibility:	Vertical- 40'+ Horizontal- 50'+
Current:	Direction- N/A Speed- N/A
Animal & Plant Life
Fin Fish	None Observed
Copepod	Est. Density: Low
Invasive Species	Mysis Shrimp
Mysis Shrimp	Est. Density: Low
Team Observations/Comments: This was dive #2 of habitat assessment. The lake was calm and obvious visibility and clarity are the result.

NMDE Team Dive - Assess Habitat Area - Glenbrook Bay - SS Tahoe

Observation Date:	15 January, 2011
Dive Team Members:	Novaes, McClellan, Ekkelboom, Briseno(Captain)
Begin Time:09:00:00	End Time:11:45:00
Weather Conditions:	Clear
Wind	Direction : N/A Speed: N/A Duration: N/A
Water Conditions
Surface	Flat
Last 24 hrs:	High Pressure/Calm/Clear
Temperature:	Surface- 41F At Depth- 41F
Visibility:	Vertical- 40'+ Horizontal- 50'+
Current:	Direction- N/A Speed- N/A
Animal & Plant Life
Fin Fish	None Observed
Copepod	Est. Density: Low
Invasive Species	Mysis Shrimp
Mysis Shrimp	Est. Density: Low
Team Observations/Comments: This dive was to establish a position for the proposed decompresion habitat. The conditions we incredible as the lake has undergone a 3 week period of no winter storms.