Description of Site: This site is approximately 400 meters in front of (to the East of) Roosevelt Dam. It represents true lacustrine conditions.
GPS Coordinates: 33⁰ 40.83 N   111⁰ 09.28 W

7/19/99
Lake Elevation: 2079.95 ft above sea level
Physico-chemical Parameters

Time	Depth (m)	Temp (C)	pH	SpCond	Salinity (ppt)	D.O. (% sat)	D.O. (mg/l)	Turbidity (NTU's)
1434:51	0	30.66	8.6	1696	0.9	94.7	6.82	0
1434:30	1	28.04	8.67	1614	0.9	95.8	7.22	1.1
1424:12	2.4	27.57	8.67	1618	0.9	94.2	7.16	1.7
1433:52	3.8	27.4	8.65	1599	0.8	90.6	6.91	1.4
1433:34	5.2	27.26	8.57	1582	0.8	83.7	6.39	1.2
1433:20	6.6	27.16	8.51	1599	0.8	79.9	6.12	1.2
1432:49	6.9	27.15	8.49	1598	0.8	76.4	5.85	1.2
1432:21	8.1	26.92	8.3	1604	0.9	55.5	4.27	1.6
1431:44	10.4	22.03	7.6	1406	0.7	3.4	0.29	4
1431:19	12	19.23	7.58	1291	0.7	2.5	0.23	4.8
1431:00	13.5	18.36	7.58	1246	0.7	3.8	0.34	5.1
1430:39	14.9	16.8	7.58	1180	0.6	6.1	0.57	5.2
1430:16	16.1	15.71	7.59	1129	0.6	9	0.86	5.5
1429:56	17.5	14.78	7.6	1071	0.6	10.3	1	6.2
1429:40	17.6	14.6	7.6	1067	0.6	9.9	0.97	7.1
1429:19	18.9	13.97	7.59	1049	0.5	8.8	0.88	8.1
1428:53	20	13.4	7.58	1026	0.5	6.9	0.69	8
1428:34	21.7	13.04	7.57	1021	0.5	5.3	0.54	8
1428:09	23.6	12.78	7.56	1009	0.5	3.8	0.39	8.9
1427:52	25.4	12.67	7.54	1008	0.5	3.7	0.38	10
1427:33	27.1	12.52	7.54	994	0.5	4.6	0.48	9.9
1427:10	28.7	12.38	7.52	989	0.5	2.7	0.28	9.7
1426:43	30.5	12.26	7.51	985	0.5	2.6	0.27	9.6
1426:16	32.2	12.15	7.49	982	0.5	3.1	0.32	21.5

 

Depth (m)	Ammonia (mg/l)	Nitrate (mg/l)	TKN (mg/l))	Ortho P (mg/l)	Total P (mg/l)	Sulfate (mg/l)	Chloride (mg/l)
0	0.02	ND	1.07	ND	0.084	55.8	346
8.5	ND	ND	0.94	ND	0.093	56.3	343
32	ND	ND	1.28	ND	0.18	55.5	284

 
 

Depth (m)	Dissolved Fe (mg/l)	Dissolved Mn (mg/l)	Total Fe (mg/l)	Total Mn (mg/l)	Silica (mg/l)	TSS	Chl a (mg/m3)	Pheophytin a (mg/m3)
0	0.063	0.016	0.082	0.015	16.3	2	3.26	3.08
8.5	0.1	0.1	0.16	0.016	16.5	2	4.464	3.676
32	0.032	ND	0.240	0.036	16.3	2	-------------	-------------

Secchi Depth: 2.05 meters

Phytoplankton
0.5 Meters

Division	Genus	Units/ml
Cyanophyta	Microspora	400
Chlorophyta	Ankistrodesmus	320
Chlorophyta	Carteria	320
Chlorophyta	Chlamydomonas	480
Chlorophyta	Chlorella	640
Chlorophyta	Closterium	80
Chlorophyta	Tetraedron	240
Chlorophyta	Thoracomonas	80
Chrysophyta	Dinobryon	640
Chrysophyta	Nitzchia	80
Chrysophyta	Rhizoslenia	240
Chrysophyta	Synedra	160
Euglenophyta	Trachelomonas	80

8.5 Meters

Division	Genus	Units/ml
Cyanophyta	Anabaenopsis	80
Chlorophyta	Ankistrodesmus	320
Chlorophyta	Carteria	80
Chlorophyta	Chlamydomonas	560
Chlorophyta	Chlorella	160
Chlorophyta	Tetraedron	160
Chlorophyta	Treubaria	160
Chrysophyta	Navicula	80
Chrysophyta	Synedra	240
Euglenophyta	Euglena	80
Euglenophyta	Trachelomonas	320

Zooplankton
 

Order	Suborder	Genus	#/m3
Copepoda	Cyclopoida	Eucyclops	19.73
Copepoda	Cyclopoida	Halicyclops	4.42
Copepoda	Cyclopoida	Macrocyclops	2.37
Copepoda	Cyclopoida	Mesocyclops	0.31
Cladocera	Bosminidae	Bosmina	1.89

Graphic of:
Temp by Depth
D.O. by Depth
pH by Depth
Turbidity by Depth