U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE ELSINORE
RIVERSIDE OOUN1Y
CALIFORNIA
EPA REGION IX
WORKING PAPER No, 745
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
-------
REPORT
ON
LAKE ELSINORE
RIVERSIDE COUNTY
CALIFORNIA
EPA REGION IX
WORKING PAPER No, 745
WITH THE COOPERATION OF THE
CALIFORNIA STATE WATER RESOURCES CONTROL BOARD
AND THE
CALIFORNIA NATIONAL GUARD
JUNE, 1978
-------
CONTENTS
Page
Foreword ii
List of California Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Introduction 1
II. Conclusions 1
III. Lake and Drainage Basin Characteristics 2
IV. Water Quality Summary 3
V. Literature Reviewed 8
VI. Appendices 9
-------
11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to freshwater lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey's eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the
potential for eutrophication control can be made.
LAKE ANALYSIS
V.
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [§303(e)], water
quality criteria/standards review [§303(c)3, clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
m
Beyond the single lake analysis, broader based correlations
between nutrient concentration (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGEMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U.S. Environmental Protection Agency)
expresses sincere appreciation to the California State Water
Resources Control Board and the nine Regional Water Quality
Control Boards for professional involvement, to the California
National Guard for conducting the tributary sampling phase of
the Survey, and to those California wastewater treatment plant
operators who voluntarily provided effluent samples and flow
data.
The staff of the Division of Planning and Research of the
State Water Resources Control Board provided invaluable lake
documentation and counsel during the Survey, coordinated the
reviews of the preliminary reports, and provided critiques
most useful in the preparation of this Working Paper series.
Major General Glen C. Ames, the Adjutant General of Cali-
fornia, and Project Officer Second Lieutenant Terry L. Barrie,
who directed the volunteer efforts of the California National
Guardsmen, are also gratefully acknowledged for their assistance
to the Survey.
-------
iv
NATIONAL EUTROPHICATION SURVEY
STUDY RESERVOIRS
State of California
Name
Amador
Boca
Britton
Casitas
Crowley
Don Pedro
Elsinore
Fallen Leaf
Hennessey
Henshaw
Iron Gate
Lopez
Mary
Mendocino
Nicasio
Lower Otay
Pillsbury
Santa Margarita
Shasta
Shaver
Silver
Tahoe
Tulloch
Lower Twin
Upper Twin
County
Amador
Nevada
Shasta
Ventura
Mono
Tuolumne
Riverside
El Dorado
Napa
San Diego
Siskiyou
San Luis Obispo
Mono
Mendocino
Marin
San Diego
Lake
San Luis Obispo
Shasta
Fresno
Mono
El Dorado, Placer, CA;
Carson City, Douglas,
Washoe, NV
Calaveras, Tuolumne
Mono
Mono
-------
LAKE ELSINORE
X Lake Sampling Site
234 5Km.
3345-
Railroad Canyon
Reservoir
11725
117" 20'
-------
LAKE ELSINORE
STORE! NO. 0607
I. INTRODUCTION
Except for periods of extreme runoff in the San Jacinto River,
Lake Elsinore receives water only from three deep wells discharging
within the lake, from direct precipitation, and from the immediate
drainage (Anonymous, 1975). Therefore, this report primarily pertains
to the lake sampling data.
It should be noted that because of the proximity of Survey sampling
stations 4, 5, and 6 to the three wells, those stations are not repre-
sentative lake stations but are mixtures of well water and lake water
in varying proportions, depending on the operation of the well pumps at
the times the samples were collected (Bailey, 1977).
II. CONCLUSIONS
A. Trophic Condition*:
Survey data indicate that Lake Elsinore is hypereutrophic.
It ranked twenty-third in overall trophic quality when the 24
California lakes and reservoirs sampled in 1975 were compared
using a combination of six parameters**. All of the other water-
bodies had less median total phosphorus, 21 had less median
dissolved orthophosphorus, 19 had less median inorganic nitro-
gen, and all of the others had less mean chlorophyll £ and
greater mean Secchi disc transparency.
* Trophic assessment is based on levels of nutrients, dissolved oxygen, and
chlorophyll a; phytoplankton kinds and numbers; and transparency (Allurn
et al., 19777.
** See Appendix A
-------
Survey limnologists observed algal blooms in progress
all three sampling times, and depression of dissolved oxygen
and fish kills occur routinely during summer months (Bailey,
op. cit.).
B. Rate-Limiting Nutrient:
The results of the algal assay indicate Lake Elsinore was
nitrogen limited in March and November. The lake data indi-
cate nitrogen limitation all three sampling times.
III. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Morphometry"^:
1. Surface area: 10.52 kilometers2.
2. Mean depth: Unknown
3. Maximum depth: 3.7 meters.
4. Volume: Unknown
B. Precipitation*:
1. Year of sampling: 27.6 centimeters.
2. Mean annual: 27.7 centimeters.
t Table of metric equivalents—Appendix B
tt Dendy, 1974
* See Working Paper No. 175, "...Survey Methods, 1973-1976."
-------
IV. LAKE WATER QUALITY SUMMARY
Lake Elsinore was sampled three times in 1975 by means of a pontoon-
equipped Huey helicopter. Each time, samples for physical and chemical
parameters were collected from one or more depths at six stations on the
lake (see map, page v). During each visit, a single depth-integrated
(near bottom to surface) sample was composited from the stations for phyto-
plankton identification and enumeration; and during the first and last
visits, 18.9-liter depth-integrated samples were composited for algal
assays. Also each time, a depth-integrated sample was collected from
each of the stations for chlorophyll a_ analysis. The maximum depths
sampled were 2.7 meters at station 1; 1.5 meters at station 2; 1.5 meters
at stations 3; and near-surface only at stations 4, 5, and 6.
The sampling results are presented in full in Appendix C and are
summarized in the following table.
-------
PARAMETER
TEMP (o
DISS OXY (MG/L)
CNDCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (Mf,/L)
ORTHO P (MG/L)
N02»N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCiI (METERS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 3/10/75)
6 SITES
RANGE
10.0 - 11.1
7.4 - 9.6
5249. - 5677.
9.0 - 9.1
675. - 960.
0.470 - 0.650
0.24* - 0.270
0.030 - 0.040
0.040 - 0.060
2.bOO - 4.000
0.070 - 0.100
2.630 - 4.030
33.8 - 69.3
0.3 - 0.5
CHEMICAL CHARACTERISTICS FOK LAKE ELSINO^E
STORET CODE 0607
2ND SAMPLING ( 6/23/75)
6 SITES
3RD bAMPLING (11/13/75)
6 SITES
MEAN
10.7
8.3
5504.
9.0
826.
0.515
0.254
0.033
0.046
3.010
0.079
3.043
53.1
0.3
MEDIAN
10.8
8.0
5537.
9.0
793.
0.487
0.253
0.030
0.045
2.950
0.075
2.980
48.6
0.3
RANGE
20.5
7.2
1026.
8.5
660.
0.409
0.070
0.040
0.070
2.600
0.110
2.640
1,6
0.1
- 27.4
- 11.0
- 6012.
9.3
- 1020.
- 0.588
- 0.095
- 0.060
- 0.090
- 3.200
- 0.140
- 3.260
- 60.1
0.3
MEAN
23.5
9.2
4960.
9.0
896.
0.469
0.086
0.044
0.079
2.914
0.123
2.959
41.9
0.2
MEDIAN
23.1
9.6
5490.
9.1
948.
0.438
0.091
0.040
0.080
2.900
0.120
2.940
47.8
0.3
RANGE
15.5
7.0
5641.
9.2
122.
0.050
0.030
0.080
0.040
0.500
0.120
0.580
O.b
0.3
- 28.0
- 14.6
- 6407.
9.4
- 1780.
- 0.498
- 0.119
- 0.310
- 0.080
- 4.900
- 0.350
- 5.000
- 172. d
0.3
MEAN
18.8
9.9
5790.
9.3
1147.
0.366
0.046
0.192
0.049
3.644
0.2*1
3.637
117.7
0.3
MEDIAN
17.1
9.8
5673.
9.3
1300.
0.426
0.034
0.220
0.040
4.400
0.280
4.620
151. t
0.3
-------
B. Biological characteristics:
1. Phytoplankton -
Sampling
Date
03/10/75
06/23/75
11/13/75
Dominant
Genera
1. Chlaniydomonas sp.
2. Ankistrodesmus sp.
3. Cyclotella sp_.
4. Cryptomonas sp.
5. Chlorogomum sp.
Other genera
Total
1. Chiamydomonas sp.
2. Anabaenopsig 'sp.
3. Ankistrodesmus sp_.
4. Cyclotella s£.
5. OscillatoFia sp.
Other genera
Total
1. Chlorophytan lunate cells
2. Chlorococcalean cells
3. Ankistrodesmus sp.
4. Nitzschia sp.
5. Pennate diatoms
Other genera
Algal Units
per ml
99,798
34,004
2,213
2,213
805
402
139,435
10,045
5,281
2,485
414
362
674
19,261
79,650
25,519
12,663
11,406
7,733
4.544
Total
141,515
-------
2. Chlorophyll a_ -
Sampling
Date
03/10/75
06/23/75
11/13/75
Station
Number
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
Chlorophyll
(ug/D
69.3
33.8
43.9
51.6
45.7
68.5
51.4
45.5
50.1
60.1
1.6*
42.6
172.8
144.0
168.0
158.8
0.6*
62.0
C. Limiting Nutrient Study:
1. Autoclaved, filtered, and nutrient spiked -
a. March sample (stations 1, 2, and 3)
Ortho P Inorganic N
Cone, (mg/1) Cone, (mg/1)
Spike (rng/1)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
b. November sample (stations 1, 2, and 3)
0.185
0.235
0.235
0.185
0.128
0.128
1.128
1.128
Spike (mg/1)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
Ortho P Inorganic N
Cone, (mg/1) Cone, (mg/1)
0.085
0.135
0.135
0.085
0.328
0.328
1.328
1.328
Maximum yield
(mg/1-dry wt.)
6.3
6.2
36.9
33.6
Maximum yield
(mg/1-dry wt.)
11.1
12.7
26.0
17.9
* Sample collected while well pump was operating (see page 1).
-------
0.125
0.175
0.175
0.125
0.255
0.255
1.255
1.255
16.5
14.8
47.2
43.2
c. November sample (stations 4, 5, and 6)
Ortho P Inorganic N Maximum yield
Spike (mg/1) Cone, (mg/1) Cone, (mg/1) (mg/1-dry wt.)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
2. Discussion -
The control yields of the assay alga, Selenastrum capri-
cornutum, indicate that the potential primary productivity
of Lake Elsinore was very high at the times the algal assay
samples were collected (03/10/75 and 11/13/75).
Also, the significant increases in yields when nitrogen
was added alone, and the lack of response when only phos-
phorus was added, indicate nitrogen limitation at those times.
The lake data indicate nitrogen limitation all three
sampling times. The mean inorganic nitrogen to orthophos-
phorus ratios were less than 1 to 1 in March, 1 to 1 in
June, and 5 to 1 in November.
-------
V. LITERATURE REVIEWED
Allum, M.O., R.E. Glessner, and J.H. Gakstatter, 1977. An evalua-
tion of the National Eutrophication Survey data. Working Paper
No. 900, Corvallis Env. Res. Lab., Corvallis, OR.
Anonymous, 1975. Water quality control plan report. CA Water Res.
Contr. Bd., Sacramento.
Bailey, Thomas E., 1977. Personal communication (reviews of pre-
liminary report). CA Water Res. Contr. Bd., Sacramento.
Dendy, William B., 1974. Personal communication (water body in-
formation and morphometry). CA Water Res. Contr. Bd., Sacra-
mento.
-------
VI. APPENDICES
APPENDIX A
LAKE' RANKINGS
-------
LAKE DATA TO BE USED IN PAN* INGS
LAKE
CODE
ObOl
0603
0603
0604
0605
0606
0607
0604
0&09
0610
0611
0614
0615
061t
0617
OblB
0619
0620
0621
0622
0623
0624
0625
0626
LAKE NAME
AMADGtf RESERVOIR
BOCA LAKE
LAKE BPITTON
CASIIAS RESERVOIR
CROWLEY LAKE
DON PEORO RESERVOIR
LAKE ELS I MORE
FALLEN LEAF RESERVOIR
LAKE HENNESSEY
LAKE HENSHAW
IRON GATE RESERVOIR
LOPEZ LAKE
LAKE MARY
LAKE HENOOCINO
NICASIO RESERVOIR
LOWER OTAY RESERVOIR
LAKE PILLSBURY
SANTA MARGARITA LAKE
SHASTA LAKE
SHAVER
SILVEK LAKE
TULLOCK RESERVOIR
UPPER TWIN LAKES
LOWER TWIN LAKES
MEDIAN
TOTAL P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.040
.012
.067
.029
.04ft
.013
.469
.007
.027
.138
.184
.371
.010
.020
.055
.058
• 022
.037
.021
.014
.012
.025
.015
.014
MEDIAN
INORG N
0.390
0.040
0.115
O.OSO
0.045
0.060
0.120
0.040
0.060
0.070
0.690
0.090
0.040
0.050
0.34S
0.180
0.060
0.070
0.060
0.060
0.055
0.060
0.040
0.040
500-
MEAN SEC
<>oa
372
440
400
374
381
489
24
416
461
440
372
296
436
482
447
466
400
381
346
356
433
300
248
.667
.833
.500
.250
.750
.733
.214
.357
.000
.000
.333
.000
.000
.500
.778
.250
.667
.000
.542
.400
.000
.000
.200
.000
MEAN
CHLOrtA
22.
1.
4.
3.
5.
3.
70.
0.
4.
26.
6.
B.
2.
3.
6.
IS.
6.
9.
4.
1.
1.
13.
3.
2.
383
700
811
192
800
564
572
786
525
783
217
658
550
100
633
933
389
122
087
700
800
878
340
900
15-
MIN OO
14
6
11
.600
.800
.200
14.000
12
11
8
8
15
9
13
15
10
9
9
IS
b
!•»
9
7
7
7
7
11
.200
.400
.000
.800
.000
.800
.800
.000
.600
.400
.800
.000
.200
.800
.000
.400
.000
.400
.400
.400
MEOI
OISS OHTi
0.020
0.003
0.047
0.014
0.034
0.004
0.092
O.OOb
0.012
0.073
0.124
0.343
0.002
0.008
0.013
0.013
0.008
0.014
0.015
0.004
0.003
0.009
0.004
0.003
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PERCENT OF I_»KES *ITrl HIGHER VALUES (NUM8EH OF LAKES rflTrl HIGHER VALUES)
LAKE
CODE
0601
0602
0603
060ft
0605
0606
0607
0608
0609
0610
0611
061*
0615
0616
0617
0618
0619
0620
0621
0622
062J
0620
0625
0626
LAKE NAME
A"AOOR RESERVOIR
BOCA LAKE
LAKE bPITTON
CASITAS RESERVOIR
CROWLEY LAKE
DON PEDRO RESERVOIR
LAKE ELSINORE
FALLEN LEAF RESERVOIR
LAKE HENNESSEY
LAKE HENSHAW
IRON GiTE RESERVOIR
LOPEZ LAKE
LAKE MARY
LAKE MENDOCINO
NICASIO RESERVOIR
LOWER OTAY RESERVOIR
LAKE PILLSBURY
SANTA MARGARITA LAKE
SHASTA LAKE
SHAVER
SILVER LAKE
TULLOCK RESERVOIR
UPPER TWIN LAKES
LOWER TWIN LAKES
MEDIAN
TOTAL P
3S (
89 (
17 (
43 (
30 (
83 (
0 (
100 (
68 (
13 (
9 (
4 (
96 (
65 (
26 (
22 (
57 (
39 (
61 (
78 (
89 (
52 (
70 (
7* (
8)
20)
41
10)
7)
19)
0)
23)
ID
3)
2)
1)
22)
15)
6)
5)
13)
9)
14)
IB)
20) •
12)
16)
17)
MEDIAN
1NORG N
4
98
22
74
78
54
17
B7
S4
33
0
26
87
70
9
13
41
33
54
41
65
54
98
87
< 1)
( 22)
( 5)
( 17)
( 18)
( ID
( 4)
I 19)
< 11)
( 7)
( 0)
( 6)
( 19)
( 16)
I 2)
( 3)
( 9)
< 7)
( 11)
< 9)
( 15)
( 11)
( 22)
( 19)
500-
MEAN SEC
43
70
17
48
65
57
0
100
39
13
26
74
91
30
4
22
9
52
61
83
78
35
87
96
( 10)
( 161
( 4)
( 11)
( 15)
( 13)
( 0)
( 23)
( 9)
( 3)
( 6)
( 171
( 21)
( 7)
( 1)
( 5)
( 2)
I 12)
( 14)
U 19)
( 18)
( 8)
( 20)
( 22)
MEAN
CHLORA
9
91
48
7C
43
61
0
100
52
4
39
26
83
74
30
13
35
22
57
96
87
. 17
65
73
( 2)
( 21)
( ID
( 16)
( 10)
1 14)
( 0)
( 23)
( 12)
( 1)
I 9)
( 6)
< 19)
< 17)
( 7)
( 3)
( 8)
( 5)
( 13)
( 22)
< 20)
( 4)
( 15)
( 18)
15-
MIN 00
17
100
43
22
30
37
78
70
4
54
26
4
48
61
54
4
. 74
13
65
87
96
87
87
37
( 4)
( 23)
( 10)
( 5)
( 7)
( 8)
( 18)
( 16)
( 0)
< 12)
( 6)
( 0)
< 11)
I 14)
< 12)
( 0)
( 17)
( 3)
( 15)
( 19)
I 22)
( 19)
( 19)
( 8)
MEDIAN
DISS ORTHO P
26
91
17
37
22
78
9
70
52
13
4
0
100
63
46
46
63
37
30
78
91
57
78
91
( 6)
( 20)
( 4)
( 8)
( 5)
( 17)
I 2)
( 16)
( 12)
( 3)
( 1)
( 0)
( 23)
( 14)
( 10)
( 10)
< 14)
( 8)
( 7)
( 17)
( 20)
( 13)
( 17)
( 20)
INDEX
NU
134
539
164
294
26S
370
104
527
249
130
104
134
505
363
169
120
279
196
328
463
506
302
485
463
-------
LAKES RANKED BY INDEX NOS.
HANK LAKE CODE LAKE NAME INDEX NO
1 0602 BOCA LAKE 539
2 0608 FALLEN LEAF RESERVOIR 527
3 0623 SILVER LAKE 506
4 0615 LAKE MARY SOS
5 0625 UPPER TWIN LAKES 485
6 0626 LOWER TWIN LAKES 463
7 0622 SHAVER 463
8 0606 DON PEDRO RESERVOIR 370
9 0616 LAHE MENDOCINO 353
10 0621 SHASTA LAKE 328
11 0624 TULLOCK RESERVOIR 302
12 0604 CASITAS RESERVOIR 294
13 0619 LAKE PILLSBURY 279
14 0605 CROWLEY LAKE 268
15 0609 LAKE HENNESSEY 349
Ib 0620 SANTA MARGARITA LAKE 196
17 0617 NICASIO RESERVOIR 169
18 0603 LAKE 6RITTON 164
19 0614 LOPEZ LAKE 134
20 0601 AMADOR RESERVOIR 134
21 0610 LAKE HENSHAW 130
22 0618 LOWER OTAY RESERVOIR 120
23 0607 LAKE ELSINORE 104
24 0611 IRON GATE RESERVOIR 104
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
Cubic meters x 8.107 x 10 ~4 = acre/feet
Square kilometers x 0.3861 = square miles
Cubic meters/sec x 35.315 - cubic feet/sec
Centimeters x 0.3937 = inches
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 = Ibs/square mile
-------
APPENDIX C
PHYSICAL and CHEMICAL DATA
-------
bTO&ET RETRIEVAL DATE 76/09/24
DATE
FROM
TO
75/03/10
75/06/23
75/1 1/13
DATE
FKOM
TO
75/03/10
75/06/23
75/11/13
TIME DEPTH
OF
DAY FEET
09 ?5 0000
09 ?5 0005
09 25 C009
14 40 0000
14 40 0006
15 00 0000
15 00 0005
TIME DEPTH
OF
DAY FEET
09 ?5 0000
09 ?5 0005
09 ?5 0009
14 40 0000
14 40 0006
15 00 0000
15 00 0005
00010
WATER
TEMP
CENT
10.7
10.9
10.9
23.7
20.5
17.3
15.5
00665
PHOS-TOT
MG/L P
0.483
C.473
0.492
0.409
0.468
0.420
0.426
00300
DO
MG/L
8.0
7.8
7.6
11. U
7.2
11.4
7.6
32217
CHLRPHYL
A
UG/L
69.3
51.4
172.8
00077
TRANSP
SECCHI
INCHES
IB
11
11
00031
INCDT LT
REMNING
PERCENT
00094
CNDUCTVY
FIELD
MICROMHO
5677
5534
5560
5«90
5480
5793
5641
060701
33 40 06.0 117 21 38.0 3
LAKE ELSIN03E
06065 CALIFORNIA
140793
HEP ALES
0011 FEET
DEPTH
2111202
CLASS 00
00400
PH
SU
9.00
9.00
9.00
9.10
9.00
9.40
9.35
00410
T ALK
CAC03
MG/L
750
755
795
805
955
1300
1480
00610
NH3-N
TOTAL
MG/L
0.050
0.040
0.040
0.060
0.070
0.040
0.040
00625
TOT KJEL
N
MG/L
3.100
2.900
2.800
3.200
2.900
4.000
4.400
00630
N02&N03
N-TOTAL
MG/L
0.040
0.030
0.030
0.060
0.040
0.220
0.240
00&71
PHOS-OIS
ORTriO
MG/L P
0.255
0.259
0.262
0.070
0.095
0.033
0.031
-------
STORE! RETRIEVAL DATE 76/09/24
060702
33 39 25.0 117 21 24.0 3
LAKE ELSINORE
06065 CALIFORNIA
140792
11EPALES 2111202
0008 FEET DEPTH CLASS 00
00010
WATER
TEMP
CENT
10.9
11.1
22.5
21.5
16.0
15.7
00300
DO
MG/L
7.4
9.6
9.6
7.8
9.8
7.6
00077
TRANSP
SECCHI
INCHES
12
10
11
00094
CNOUCTVY
FIELO
MICROMHO
5545
5540
5703
5500
5673
5693
00400
PH
su
9.00
9.00
9.05
9.00
9.35
9.35
00410
T ALK
CAC03
MG/L
790
960
940
995
1640
1340
00610
NH3-N
TOTAL
MG/L
0.040
0.040
0.070
0.030
0.040
0.040
00625
TOT KJEL
N
MG/L
3.000
2.800
2.900
2.900
4.400
4.600
00630
N02&N03
N-TOTAL
MG/L
0.030
0.030
0.040
0.040
0.260
0.310
00671
PHOS-OIS
ORTHO
MG/L P
0.260
0.270
0.082
0.092
0.030
0.037
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P UG/L
75/03/10 09 55 0000 0.608 33.8
09 55 0005 0.650
75/06/23 15 05 0000 0.438 45.5
15 05 0005 0.505
75/11/13 15 30 0000 0.404 144.0
15 30 0004 0.498
00031
INCDT LT
REMNING
PERCENT
-------
STCHET RETRIEVAL DATE 76/09/24
060703
33 4C 07.0 117 20 40.0 3
LAKE ELSINORE
06065 CALIFORNIA
140792
11EPALES
0009 FEET
DEPTH
2111202
CLASS 00
DATE
FROM
TO
75/03/10
75/06/23
75/1 1/13
TIME DEPTH
OF
DAY FEET
10 15 0000
10 15 0005
15 20 0000
15 45 0000
15 45 0005
00010
WATER
TEMP
CENT
10. b
11 .0
25.3
17.1
15.5
00300
00
MG/L
8.0
8.0
10.6
13.0
7.0
00077
TRANSP
SECCHI
INCHES
12
11
11
00094
CNDUCTVY
FIELD
MICROMHO
5450
5522
6012
5671
5653
00400
PH
SU
9.00
9.00
9.10
9.30
9.30
00410
T ALK
CAC03
MG/L
455
900
1020
1260
1260
00610
NH3-N
TOTAL
MG/L
O.OSO
0.050
0.080
0.060
0.060
00625
TOT KJEL
N
MG/L
2.600
3.100
3.100
4.400
4.400
00630
N02&N03
N-TOTAL
MG/L
0.030
0.030
0.050
0.220
0.220
00671
PHOS-DIS
ORTHO
MG/L P
0.244
0.246
0.091
0.034
0.034
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO 04Y FEET MG/L P UG/L
75/OJ/10 10 15 0000 0.506 43.9
10 15 0005 0.506
75/06/23 15 20 0000 0.436 50.1
75/11/13 15 45 0000 0.444 168.0
15 45 0005 n.4<*<*
00031
INCDT LT
REMNING
PERCENT
-------
bTORET RETRIEVAL DATE 76/09/24
DATE
FROM
TO
75/03/10
75/06/23
75/1 1/1?
DATE
FSOM
TO
75/03/10
75/06/23
75/1 1/12
TIME DEPTH
OF
OAr FEET
10 40 0000
15 45 0000
15 55 0000
TIME DEPTH
OF
DAY FEET
10 40 0000
15 45 0000
15 55 0000
00010
fcATER
TEMP
CENT
10.0
27.4
?0.0
00665
PHOS-TOT
MG/L P
0.481
0.588
0.445
00300
DO
MG/L
8. 8
14.6
32217
CHLRPHYL
A
UG/L
51.6
60.1
158.8
00077
TRANSP
SECCHI
INCHES
14
3K
10
00031
INCDT LT
REMNING
PERCENT
060704
33 39 32.0 117 20 10.0 3
LAKE ELSINORE
06065 CALIFORNIA
140792
11EPALES 2111202
0003 FEET DEPTH CLASS 00
7
P
I
S
14
3K
10
00094
CNDUCTVY
FIELD
MICROMHO
5419
4705
6407
00400
PH
SU
9.05
9.20
9.30
00410
T ALK
CAC03
MG/L
750
1780
00610
NH3-N
TOTAL
MG/L
0.050
0.030
0.040
00625
TOT KJEL
N
MG/L
3.000
2.800
4.900
00630
N02&N03
N-TOTAL
MG/L
0.040
0.040
0.100
00671
PHOS-OIS
ORTriO
MG/L P
o.24a
0.092
0.045
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL OATE 76/09/24
060705
33 39 10.0 117 20 18.0 3
LAKE ELSINORE
06065 CALIFORNIA
140792
11EPALES 2111202
0001 FEET DEPTH CLASS 00
DATE
FROM
TO
75/03/10
75/06/23
75/11/13
DATE
FRUM
TO
75/03/10
75/06/23
75/11/13
TIME DEPTH
OF
DAY FEET
10 55 0000
15 50 0000
16 30 0000
TIME DEPTH
OF
DAY FEET
10 55 0000
15 50 0000
16 30 0000
00010
WATER
TEMP
CENT
10.0
24.5
00665
PHOS-TOT
MG/L P
C.4B1
0.050
00300
00
MG/L
8.8
ir,.4
32217
CHLRPHYL
A
UG/L
45.7
1.6
0.6
00077
TRANSP
SECCHI
INCHES
12
00031
INCDT LT
REMNING
PERCENT
00094
CNDUCTVY
FIELD
MICROMHO
5545
1026
00400 00410
PH T ALK
CAC03
SU MG/L
9.00 675
8.50
9.20 122
00610
NH3-N
TOTAL
MG/L
0.040
0.040
00625 00630
TOT KJEL N02&N03
N N-TOTAL
MG/L MG/L
4.000 0.030
0.500 0.080
00671
PHOS-DI5
ORTHO
MG/L P
0.251
0.049
-------
STORE! RETRIEVAL DATE 76/09/24
DATE
FROM
TO
75/03/10
75/06/23
75/11/13
TIME DEPTH
OF
DAY FEET
11 05 0000
16 05 0000
16 15 0000
00010
WATER
TEMP
CENT
10.6
28.0
00300 00077
DO TRANSP C
SECCHI FIELD
MG/L INCHES V
8.6
5
7.6
060706
33 38 56.0 117 20 33.0
LAKE ELSINORE
06065 CALIFORNIA
140793
IIEPALES 2111202
0002 FEET DEPTH CLASS 00
094
CTVY
D
OMHO
5249
5360
00400
Pri
su
9.10
9.25
9.30
00410
T ALK
CAC03
MG/L
925
660
144
00610
NH3-N
TOTAL
MG/L
0.060
0.090
o.oao
00625
TOT KJEL
N
MG/L
2.800
2.600
1.200
00630
N02&N03
N-TOTAL
MG/L
0.040
0.040
0.080
00671
PHOS-DIS
ORTHO
MG/L P
0.248
0.080
0.119
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO JAr FEET MG/L P UG/L
75/03/10 11 05 0000 0.470 68.5
75/06/23 16 05 0000 0.437 42.6
75/11/13 16 15 0000 0.166 62.0
00031
INCOT LT
REMNING
PERCENT
------- |