Report on Lake Cochrane, Deuel County, South Dakota, EPA Region VIII


       U.S. ENVIRONMENTAL PROTECTION AGENCY
           NATIONAL EUTROPHICATION SURVEY
                    WORKING PAPER SERIES
                                          REPORT
                                            ON
                                        LAKE COCHRANE
                                         IEUEL COUNTY
                                         SOUTH DAKOTA
                                       EPA REGION VIII
                                     IRKING PAPER No, 605
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS OREGON
                            and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
 699-440

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                                       REPORT
                                         on
                                    LAKE COCHRATE
                                     IHELCOLMY
                                     SOUTH DAKOTA
                                   EPA REGION VI11
                                WORKING PAPER No, 605
           WITH THE COOPERATION OF THE
SOUTH DAKOTA DEPARTMENT OF ENVIRONMENTAL PROTECTION
                    AND THE
           SOUTH DAKOTA NATIONAL GUARD
                 JANUARY/ 1977

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1
CONTENTS
Page
Foreward ii
List of South Dakota Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 1
[ II. Lake Water Quality Surmiary 2
IV. Nutrient Loadings 3
V. Literature Reviewed 7
VI. Appendices 8

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11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration con iiitment 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
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 f 3O3(e)], water
quality criteria/standards review [ 3O3(c)], clean lakes [ 314(a,b)],
and water quality monitoring [ 1O6 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.

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111
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (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
freshwater 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.
AC KNO WL EDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the South Dakota Departments of
Environmental Protection and Game, Fish and Parks for professional
involvement, to the South Dakota National Guard for conducting the
tributary sampling phase of the Survey, and to those wastewater
treatment plant operators who voluntarily provided effluent samples.
Allyn Lockner, Secretary, and Blame Barker and Duane Murphy,
Department of Environmental Quality; Douglas Hansen, Department
of Game, Fish and Parks; and James Hayden, Director, State Lakes
Preservation Coninittee provided invaluable lake documentation and
counsel during the Survey, reviewed the preliminary reports, and
provided critiques most useful in the preparation of this Working
Paper series.
Major General Duane L. Corning, the Adjutant General of South
Dakota, and Project Officer Colonel Robert D. Chalberg, who directed
the volunteer efforts of the South Dakota National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.

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iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF SOUTH DAKOTA
LAKE NAME COUNTY
Albert Kingsbury
Alvin Lincoln
Angostura Fall River
Brant Lake
Byron Beadle
Clear Marshall
Clear Minnehaha
Cochrane Deuel
Cottonwood Spink
Deerfield Pennington
Enemy Swim Day
Herman Lake
John Hamlin
Kampeska Codington
Madison Lake
Mitchell Davidson
Norden Hamlin
East Oakwood Brookings
West Oakwood Brookings
Pactola Pennington
Pickerel Day
Poinsett Brookings, Lake
Red Iron South Marshall
Richmond Brown
Roy Marshall
Sand Brown
Sheridan Pennington
Stockdale Custer
East Vermillion McCook
Wall Minnehaha
Wau bay Day

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4 (43,—
ftDa j
44 ’42 —
LAKE COCHRANE
X Lake Sampling Site
o 1/2 iKm.
I I I
o 1/4 1/2Mi.
Scale
9&28’
Map Location
COCH/?A NE
9629

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LAKE COCHRANE
STORET NO. 4608
I. INTRODUCTION
Lake Cochrane was included in the National Eutrophication Survey
as a water body of interest to the South Dakota Departments of Environ-
mental Protection and Game, Fish and Parks. Tributaries and nutrient
sources were not sampled, and this report relates only to the lake sampling
data.
II. CONCLUSIONS
A. Trophic Condition:
Survey data indicate Lake Cochrane is eutrophic. It ranked
ninth in overall trophic quality when the 31 South Dakota lakes
sampled in 1974 were compared using a combination of six parameters*.
Five of the lakes had less and one had the same median total phos-
phorus, one had less median dissolved orthophosphorus, 17 had less
and two had the same median inorqanic nitroqen, ten had less mean
chlorophyll a, and 15 had greater mean Secchi disc transparency.
Depletion of dissolved oxygen occurred near the bottom at
sampling station 1 in July.
B. Rate-Limiting Nutrient:
The algal assay results indicate that Lake Cochrane was phos-
phorus limited at the time the sample was collected (04/24/73).
The lake data also indicate phosphorus limitation in April but
nitrogen limitation in July and September.
* See Appendix A.

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2
III. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometrytt:
1. Surface area: 1.48 kilometers 2 .
2. Mean depth: 3.4 meters.
3. Maximum depth: 8.2 meters.
4. Volume: 5.032 x 106 m 3 .
B. Precipitation*:
1. Year of sampling: 45.9 centimeters.
2. Mean annual: 61.0 centimeters.
lTable of metric equivalents--Appendix B.
ft Murphey, 1974.
* See Working Paper No. 175, “...Survey Methods, 1973-1976k.

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3
IV. LAKE WATER QUALITY SUMMARY
Lake Cochrane was sampled three times during the open-water season
of 1974 by means of a pontoon-equipped Huey helicopter. Each time,
samples for physical and chemical parameters were collected from two
stations on the lake and from a number of depths at each station
(see map, page v). During each visit, a single depth-integrated
(4.6 m or near bottom to surface) saraiile was composited from the
stations for phytoplankton identification and enumeration; and during
the first visit, a single l 8 . 9 -liter depth-integrated sample was
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 6.4 meters at station 1 and
4.6 meters at station 2.
The sampling results are presented in full in Appendix C and
are summarized in the following table.

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2 SITES
A. SUMMARY OF PHYSICAL AND CHEMICAL CrfAp ACTEp ISTICS FOM COCH ANE LAKE
STURET CUUE 4608
1ST SAMPLING ( 4/24/74) 2N0 SAMPLING C 7/12/74)
2 SITES
3 D SAMPLIN(, C 9/19/74)
2 SITES
PARAMETER
RANGE
MEAN
MEOIAN
MEAN
MEDIAN
AN(,E
MEAN
MEDIAN
TE4P (C)
8.3
— 8.4
8.3
8.3
23.2
— 24.9
24.4
24.6
16.1
— 16.3
16.2
16.2
DISS OXY (MG/U
10.0
— 10.6
10.3
10.4
0.0
— 9.0
6.0
6.8
8.0
— 9.’.
8.9
9.3
CNOCTVY UICROMO
1711.
— 1872.
1780.
1760.
3228.
— 3328.
3301.
3309.
2562.
— 2571.
2567.
2568.
PH (STAND UNITS)
8.3
— 8.4
8.4
8.3
8.5
— 8.7
8.7
8.7
8.4
— 8. 5
8.’
8..
TOT ALK (MG/I)
260.
— 300.
285.
287.
238.
— 264.
252.
254.
255.
— 485.
364.
328.
TOT R (MG/L)
0.036
— 0.046
0.039
0.038
0.028
— 0.063
0.041
0.042
0.031
— 0.294
0.077
O.03b
ORTHO P (MG/I)
0.004
— 0.008
0.006
0.006
0.014
— 0.045
0.022
0.019
0.005
— 0.016
0.007
0.006
N02 .N03 (MG/U
0.070
— 0.110
0.093
0.095
0.040
— 0.160
0.083
0.090
0.020
— 0.060
0.030
0.025
AMMONIA (MG/L)
0.100
— 0.120
0.108
0.105
0.040
— 0.120
0.070
0.060
0.040
— 0.080
0.048
0.040
KJEL N (MG/L)
1.000
— 1.300
1.167
1.150
1.300
— 2.300
1.686
1.700
1.400
— 3.200
1.767
1.500
INOR( , N (MG/I)
0.170
— 0.230
0.202
0.200
0.080
— 0.280
0.153
0.150
0.060
— 0.140
0.078
0.070
TOTAL N (MG/L)
1.070
— 1.410
1.260
1.255
1.370
— 2.390
1.769
1.760
1.420
— 3.260
1.797
1.520
CHLRPYL A (Ur,/L)
5.3
— 5.5
5. ’.
5.4
11.8
— 13.1
12.4
12.4
23.9
— 34.5
29.2
29.2
SECCr (I (METERS)
1.7
— 1.7
1.7
1.7
1.2
— 1.2
1.2
1.2
1.2
— 1.4

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5
B. Biological characteristics:
1. Phytoplankton -
Sampling Dominant Algal Units
Date Genera p er ml
04/24/74 1. Oscillatoria . 640
2. Centric diatoms 342
3. Synedra . 213
4. Coelosphaerium p. 43
5. yptomonas 43
Other genera 384
Total 1,665
07/12/74 1. Aphanothece p. 8,734
2. Coelosphaerium n.. 485
3. Peridinium 485
4. Lyngbya . 323
5. Botryococcus 81
Other genera 325
Total 10,433
09/19/74 1. Microcystis p_. 1,789
2. Aphanothece . 617
3. Peridinium . 494
4. Chroococcus 247
5. Coelosphaerium . 123
Other genera 308
Total 3,578
2. Chlorophyll a —
Sampling Station Chlorophyll a
Date Number ( pg/l )
04/24/73 1 5.5
2 5.3
07/12/74 1 11.8
2 13.1
09/19/74 1 34.5
2 23.9

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6
C. Limiting Nutrient Study:
1. Autociaved, filtered, and nutrient spiked —
Ortho P Inorganic N
___________ Conc. (mg/i) Conc. (mg/i ) _____________
0.007 0.119
0.057 0.119
N 0.057 1.119
0.007 1.119
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum , indicates that the potential primary productivity
of Lake Cochrane was low at the time the sample was collected
(04/24/74). Also, the significant increase in yield with the
addition of orthophosphorus alone indicates that the lake was
limited by phosphorus at that time. Note that addition of
nitrogen alone resulted in a yield that was no greater than
that of the control.
The lake data indicate phosphorus limitation in April as
well; i.e., the mean inorganic nitrogen/orthophosphorus ratio
was 34/1. However, in July and September, the lake data
indicate that nitrogen was limiting; the mean inorganic nitrogen!
orthophosphorus ratios were 7/1 and 11/1 respectively, and
nitrogen limitation would be expected.
Spike (mq/1 )
Control
0.050 p
0.050 p + 1.0
1.0 N
Maximum yield
mg/l-dry wt. )
0.1
6.1
14.2
0.1

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7
V. LITERATURE REVIEWED
Murphey, Duane G., 1974. Personal communication (lake niorphometry).
SD Dept. of Env. Prot., Pierre.

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8
Vi. APPENDICES
APPENDIX A
LAKE RANKINGS

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L E DATA TO BE USED IN PANKIt GS
MEDIAN MEDIAN S00 MEAN 15— MEDIAN
LAKE NAME TOTAL P INO G N MEAN SEC CpILORA MIN DO DISS OR plC ‘
4601 LAKE ALBE- T 0.321 0.170 489.111 106.289 9.200 O.0 9
6602 ALVIN LAKE: 0.067 0.973 442.833 4.700 9.400 0.017
4 33 ANGOSTURA RESERVOIR 0.019 0.160 423.333 3.717 13.000 0.005
4604 A’4T LAKE 0.194 0.130 432.833 34.150 11.8o0 0.113
6605 LAKE. MYRON 0.443 0.370 488.333 149.350 9.003 0.146
4606 CLEAR LAKE 0.027 0.075 430.167 11.983 8.800 0.0)9
460w CLEAR LAKE 1.400 0.270 495.333 691.000 7.000 0.468
4603 COCHRAI ,E LAKE 0.037 0.150 446.000 15.683 15.000 0.OOd
4609 COTtONWOOD LAKE 0.685 0.265 490.333 112.017 8.600 0.417
4610 OEERFIELD RESERVOIR 0.033 0.080 303.333 3.650 15.000 0.022
4611 ENEMY SWIM LAKE 0.037 0.085 442.600 14.200 8.200 0.013
4612 LAKE HERMAN 0.340 0.155 485.000 58.733 8.600 0.174
4613 ST JOHN LAKE 0.34Ei 0.080 489.400 120.880 9.800 0.025
4614 LAKE KAMPESKA 0.220 0.105 468.889 20.567 8.200 0.128
4615 MADISON LAKE 0.253 0.090 445.555 22.578 14.000 0.107
4616 LAKE MITChELL 0.099 0.085 465.833 14.883 13.800 0.015
‘.617 LAKE NOQOEN 0.256 0.165 488.667 46.800 10.000 0.050
4618 OAKWO0I LA(E EAST 0.146 0.175 487.000 113.600 10.000 0.009
4619 OAK OOD LAKE WEST 0.181 0.135 485.833 159.667 9.b O O 0.021
4620 PACTOLA RESERVOIR 0.011 0.070 248.444 1.478 11.000 0.006
6621 PICKEREL LAKE 0.049 0.095 439.833 15.833 9.600 0.009
4622 LAKE POINSETT 0.115 0.315 468.444 40.211 10.000 0,023
4623 LAKE RED I 0N SOUTM 0.042 0.110 430.333 6.883 7.600 0.010
462’ RICHMOND LAKE 0.187 0.150 410.000 18.467 10.000 0.1’4
4625 ROY LAKE 0.034 0.070 431.000 13.333 11.000 0.010
4626 SAND LAKE 0.489 0.110 471.800 65.790 12.800 0.288
4627 S ERIOAN LAKE 0.053 0.105 394.000 15.433 15.000 0.016
4628 STOCKADE LAKE 0.233 0.150 432.000 25.400 15.000 0.109

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DATA TO BE USED IN RANKINGS
LAKE
MEDIAN
MEDIAN
CODE
LAKE
NAME
TOTAL
INORO N
MEAN SEC
MEAN
CHLO A
iS—
MIN DO
MEDIAN
DISS O TKO R
4629
LAKE
VERMILLION
0.211
0.100
472.833
100.800
9.200
0.092
4630
WALL
LAKE
0.194
0.160
441.667
55.267
7.400
0.0Th
‘.631
WAU AY LAicE NORTH
0.093

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PE’CENT OF LA (ES WITH HIGHER VALUES (NUM8E OF LAKES ITM MIGHE VALUES)
MEDIAN
MEDIAN
500—
MEAN
15—
MEO IAN
INQEX
LAKE NAME TOTAL P
INOPG N
MEAN SEC
CHLO A
MIN DO
DISS
ORTMO P
NO
LAcE
CODE
4601
LAKE ALB PT
20 C 6)
20 C 6)
10 C 3)
23 ( 7)
68 C 20)
60 18)
201
4632
ALVIN LAKE
67 C 23)
0 C 0)
57 C 17)
90 C 27)
63 C 19)
63 C 1 )
340
4603
ANGOSTtJRA PE5E VOIP
97 ( 29)
30 I 9)
87 C 26)
93 C 28)
20 C 6)
100 1 30)
427
4604
B ANT LAKE
40 ( 12)
53 C 16)
70 ( 21)
47 I 14)
27 ( 8)
23 C 7)
260
4605
LAKE BYRON
10 C 3)
3 C 1)
17 ( 5)
7 C 2)
73 1 22)
13 C 4)
123
4606
CLEAR LAKE
93 ( 28)
93 C 28)
83 ( 25)
83 C 25)
77 ( 23)
90 C 27)
S1’
4607
CLEAR LAKE
0 C 0)
10 C 3)
0 C 0)
0 C 0)
100 C 30)
0 C 0)
110
46)8
COCIPANE LAKE
83 I 25)
40 C 11)
50 C 15)
67 C 20)
5 1 0)
93 1 28)
338
4609
COTTONwOOD LAKE
3 C 1)
13 C 4)
3 C 1)
20 C 6)
82 C 24)
3 C 1)
124
4610
OEERFIELD RESERVOIR
90 I 27)
88 C 26)
91 1 29)
97 1 29)
5 ( 0)
53 C 16)
430
‘.611
ENEMY SWIM LAKE
80 C 24)
82 1 24)
60 C id)
77 C 23)
88 ( 26)
73 1 22)
460
4612
LAKE HERMAN
17 C 5)
33 C 10)
21 C 8)
33 C 10)
82 ( 24)
10 1 3)
202
4613
ST JOHN LAKE
13 C 4)
88 C 26)
7 C 2)
13 ( 4)
53 ( 16)
43 C 13)
217
4614
LAKE KAM ESKA
33 1 10)
65 C 19)
40 C 12)
57 C 17)
88 ( 26)
20 6 6)
303
4615
MADISON LAKE
27 6 8)
77 C 23)
53 1 16)
53 C 16)
13 C 4)
30 6 9)
23
4616
LAKE MITCHELL
60 6 18)
82 C 24)
47 C 14)
73 C 22)
17 ( 5)
70 C 21)
349
4617
LAKE NORDEN
23 1 7)
23 C 7)
13 ( 4)
40 C 12)
45 12)
40 1 12)
184
4618
OAK OOO LAKE EAST
3 C 16)
17 C 5)
20 ( 6)
17 C 5)
45 C 12)
85 ( 25)
237
4619
OAKW000 LAKE WEST
50 C 15)
SO C 15)
23 C 7)
3 C 1)
58 C 17)
57 6 17)
241
4620
PACTOLA RESERVOIR
100 C 30)
9R C 29)
100 6 30)
100 C 30)
35 C 10)
97 C 29)
530
4621
PICKEREL LAKE
73 C 22)
73 C 22)
67 C 20)
63 C 19)
58 C 17)
85 C 25)
419
4622
LAKE POIN5(TT
57 ( 17)
7 C 2)
43 ( 13)
43 1 13)
45 6 12)
47 C 14)
242
4623
LAKE RED IRON SOUTH
77 C 23)
58 C 17)
80 C 24)
87 1 26)
93 C 28)
78 C 23)
413
4624
RIC’IMOND LAKE
47 C 14)
‘.0 ( 11)
90 1 27)
60 C 18)
45 C 12)
1? C 5)
299
4625
ROY LAXE
87 C 26)
98 C 2 )
77 ( 23)
80 ( 24)
35 C 10)
78 1 23)
455
4626
SAND LAKE
7 1 2)
58 C 17)
33 C 10)
30 C 9)
23 C 7)
7 C 2)
158
4627
ShERIDAN LAKE
70 C 21)
65 C 19)
93 C 26)
70 C 21)
5 C 0)
67 C 20)
370
4628 STOCKAOE LAKE
30 1 9) 40 C 11) 73 C 22) 50 C 15)
S C 0) 27 C. .8) 225

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PERCENT OF
LAKES IT)1
HIGHER VALUES (NUMaER OF
LAKES wITH HIGHEW VALUES)
LAKE
CODE
LAKE
NAME
MEDIAN
TOTAL P
MEDIAN
INOPG
N
500—
MEAN
SEC
r4 AN
CHLO A
15
MIN
DO
MEDIAN
DISS ORTriO
P
INDEX
NO
629
LAKE
VERMILLION
37 C 11)
70 C
21)
30
C 9)
27 C 8)
68 C
20)
33 C 10)
265
6630
WALL
LAKE
63 ( 13)
27 C
8)
63
( 19)
37 C 11)
97 C
29)
37 C 11)
304
4631
WAUBAY LAi E NORTH
63 C 19)
47 C
14)
37
C 11)
10 C 3)
30 (
9)
50 C 15)
237

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LA$ ES AMKE0 BY INDEX 4OS.
RANK LAKE CODE LAKE NAME INDEX NO
1 4620 PACTOLA RESERVOIR 530
2 4606 CLEAR LAKE 519
3 4623 LAr E RED IRON SOUTH 473
4 4611 ENEMY SWIM LAKE 460
5 4625 ROY LAKE 455
6 4610 OEERFIELD RESERVOIR 430
7 4603 ANGOSTURA RESERVOIR 427
8 4621 PICKEREL LAKE 419
9 4627 SHERIDAN LAKE 370
10 4616 LAKE MITCHELL 349
11 4602 ALVIN LAKE 340
12 4608 COCHRANE LAKE 338
13 4630 WALL LAKE 304
14 4614 LAKE KAP4PESKA 303
15 4624 RIC iMOND LAKE 299
16 4629 LAKE VERMILLION 265
17 4604 8RANT LAKE 260
18 4615 MADISON LAKE 253
19 4622 LAKE POINSETT 242
20 4619 OAKW000 LAKE WEST 241
21 4631 WAUBAY LAKE NORTH 237
22 4618 OAK OOD LAKE EAST 237
23 4828 STOCKADE LAKE 225
24 4613 ST JOHN LAKE 217
25 4612 LAKE rIERMAN 202
26 4601 LAKE ALBERT 201
27 4617 LAKE NOROEN 1e4
28 4626 SAb D.LAKE 158

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LA(ES RAP4Pc(O BY INDEX NOS.
A K LA’cE CODE LANE NAME INDEX NO
29 4509 COTTuNWOO LAKE 124
30 4605 LAKE bYPON 23
31 4607 CLEAR LAKE 110

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APPENDIX B
CONVERSION FACTORS

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CONVERSION FA(;TORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
CubIc meters x 8.107 x 10 = 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 = lbs/square mile

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APPENDIX C
PHYSICAL and CHEMICAL DATA

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,rJ- E1 ET ?1EVAL ! /it/25
460 0 1
‘ .7 “1 30.0 O’ 6 28 10.0
COC—- E L .r E
‘. o3; JurH A OTA
11EPALcS
4
2111202
0018 FEET DEPTrI
74/0’./2’. 09 30 0000
09 30 0005
09 30 0015
74/ )7/12 09 40 0000
09 40 v00
(,Q 40 0017
0 ‘0 02I
7 ’ ./09/I° 10 10 0000
ID 10 0005
10 10 0010
10 10 OOlb
00665 32217
Pr 0S—TOT CP1LRPH’ L
A
P DOlL
0.046
3 .03
ij.03
0.045
3.035
.042
o .028
C .031
1 .032
C0031
INCOT LI
REMNING
PERCENT
30010
.. 1 EF’
CE, T
8.3
8. i
8.3
24 • 6
24 • 5
24 • 5
23.2
16.3
16.3
16.3
OATt
T1’4E OE- T-
F 0M
O
TO
041’ FEET
7-./J ’/2’
09 30 0000
09 30 0035
09 30 0015
74/07/12
0’ 40 0000
09 0 03J-
0’ 40 0317
0 40 u021
74/0’ /19
10 10 0000
10 10 000
10 10 OOlb
DATE
TIME DEPTri
FR0 %
13
OF
UAY FEET
00300 00077
00
SE C C P- i I
MG/L 1’JCr ES
10.0
10.2
6.4
6.0
7.2
0.0
9.4
9.4
8.2
Ci0 a9’ .
C N D O C I ‘ S ‘1’
FIELD
MI Cr 0MH0
65 1714
1763
1872
46 3j09
3309
3306
322
48 2571
2571
2571
00400
0041)
00610
00625
00630
Pi -i
50
T 4LtS
CACO3
MG/L
NriJ—N
TOTAL
M(.,/L
TOT ‘cJEL
N
H&/L
NO2 O3
N—TOTAL
Mu/L
P OS—ijIS
0 Tri0
MG/L P
8.4
8.40
8.35
8.60
8. 10
8.70
8.50
8.50
8.47
8 • 45
263
292
300
258
238
264
2 c,’.
475
485
255
0.100
0.100
0.100
O • 080
0.060
0.040
0.120
0 • 050
I.) • 040
O • 080
1.300
1 • 100
1.000
1 • 700
1.300
1.500
1.600
1.500
1.500
3.200
0.090
0.080
0.0 70
0 • 090
0.070
0.040
0 • 180
0 • 023
0.020
0.060
0.006
0.006
0.004
0.045
0.023
0.020
0.014
0.006
0.006
0.u 16
5.5
11.8
34 • 5
1.0
0 • 29’.

-------
Tj Et — 1-1Ev L jAI 7 /1j/25
z 48 0802
47 41 15.0 096 28 30.0
C0Cri- ’. L ’
JL1H .dA \UFA
l1EPi Lt 5
211 1202
OulS FEET Otr’Tri
7 ’ ./U4/24 co 0000
09 50 0)05
09 50 0010
7’,/07/1? 10 00 0000
10 00 000’3
10 00 0015
74/u /l 10 30 0000
10 30 0004
10 30 D00
10 30 0010
3 .03-
U .031
Ct .036
U .04’.
J .032
) .083
( .u37
0.035
) • u
1’ .o
10.6
6.8
9.0
b. C
9.2
9.4
iOU l O
00300
00077
00400
u iE
1j iE
DEPT-’
v 4It
DO
TN . NSP
CND0CTVY
Pb
I
ALrS
N1-43—N
TOT IcJEL
NO2bNOJ
r i—TOTAL
O T -iO
F-c0
OF
TEM
SECCt- 1
FIELL)
CACO3
TOTAL
N
MG/L
MG/L P
Ti
O Y
FEET
C iT
M(,/L
1NC S
M1C OMr-i)
SD
M0/L
M0/L
MG/L
76/ 4/24
09 50 0000
8.’.
o5
1711
5.35
288
0.120
1.200
0.1 10
0.100
0.005
0.007
09 50 0005
8.’.
1757
8.30
286
0.110
1.100
0.008
o so 0010
s. ’ .
1863
8.30
286
0.120
1.300
74/07/12
10 00 oooo
2 ’ ..9
46
3328
6.70
248
0.060
2.300
0.090
0.040
0.015
10 00 0003
? 4.o
3315
8.70
2’s0
U.0 Ij
1.700
0.090
0.017
10 00 3015
24.6
3309
8.70
254
0.080
1.700
0.006
74/O /1
10 30 CO
18.1
54
2563
8.43
330
0.040
1.600
0.020
0.005
10 30 u004
16.2
2564
8.’.S
315
0.040
1.400
0.030
0.006
10 30 0008
18.1
2562
8.42
325
0.040
1.400
DATE
r OM
TO
32217
TL IF OL ’Tr4 b- oSTOT CriLPPr”rL
A
uAi FEET MU,/L P U&/L
5.3
13.1
23.9
00031
Ir4CuI LT
E MN I Ni
P E k . rs T
1.0

-------