U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
SWEET BRIAR LAKE
MORTON COUNTY
NORTH DAKOTA
EPA REGION VIII
WORKING PAPER No, 577
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
.P.O. 699-440
-------
REPORT
ON
SWEET BRIAR LAKE
MORTON COUNTY
NORTH DAMOTA
EPA REGION VIII
WORKING PAPER No, 577
WITH THE COOPERATION OF THE
NORTH DAKOTA STATE DEPARTMENT OF HEALTH
AND THE
NORTH DAKOTA NATIONAL GUARD
OCTOBER, 1976
-------
CONTENTS
Page
Foreword ii
List of North Dakota Study Lakes and Reservoirs iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Summary 4
IV. Nutrient Loadings 8
V. Literature Reviewed 12
VI. Appendices 13
-------
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
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)], 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.
-------
iii
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.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the North Dakota State Depart-
ment of Health for professional involvement, to the North Dakota
National Guard for conducting the tributary sampling phase of the
Survey, and to those North Dakota wastewater treatment plant oper-
ators who voluntarily provided effluent samples and flow data.
Norman L. Peterson, Director, and the staff of the Division
of Water Supply and Pollution Control of the Department of Health,
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 LaClair A. Melhouse, the Adjutant General of
North Dakota, and Project Officer Colonel Irvin M. Sande, who
directed the volunteer efforts of the North Dakota National
Guardsmen, are also gratefully acknowledged for their assistance
to the Survey.
-------
iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES AND RESERVOIRS
STATE OF NORTH DAKOTA
NAME COUNTY
Ashtabula Barnes, Griggs
Audubon McLean
Brush McLean
Darling Renville, Ward
Devils Benson, Ramsey
Jamestown Stutsman
LaMoure LaMoure
Matejcek Walsh
Metigoshe Bottineau
Pelican Bottineau
Sakakawea Dunn, McKenzie,
McLean, Mercer,
Mountrail, Wil-
liams
Spiritwood Stutsman
Sweet Briar Morton
Whitman Nelson, Walsh
-------
I
10*35'
SWEET BRIAR LAKE
® Tributary Sampling Site
X Lake Sampling Si te
3 Drainage Area Boundary
\ -> ^
\ -^ \, \ '
V \
I ) ^ \
r \
V
\ --/ ,-
- /'
-------
SWEET BRIAR LAKE
STORE! NO. 3814
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Sweet Briar Lake is eutrophic. It
ranked fifth in overall trophic quality when the 14 North Dakota
lakes sampled in 1974 were compared using a combination of six
water quality parameters*. Five of the lakes had less median
total and dissolved phosphorus, two had less median inorganic
nitrogen, 11 had less mean chlorophyll a., and six had greater
mean Secchi disc transparency.
Survey limnologists noted algal blooms in July at both
sampling stations and in September at station 2. The North
Dakota Game and Fish Department has reported excessive aquatic
vegetation in the lake (Peterson, 1975).
B. Rate-Limiting Nutrient:
The algal assay results indicate that Sweet Briar Lake was
limited by nitrogen at the time the sample was collected (09/17/74),
The lake data indicate nitrogen limitation at all sampling sta-
tions and times.
C. Nutrient Controllability:
1. Point sources—The only point sources which may have con-
tributed to the total phosphorus load during the sampling year
* See Appendix A.
-------
2
were septic tanks serving lakeshore campgrounds. Those sources
were estimated to have contributed 0.5% of the total load; however,
a shoreline survey would be needed to determine their nutrient
significance.
The present phosphorus loading of 1.71 g/m*/year is 3.6 times
that proposed by Vollenweider (Vollenweider and Dillon, 1974) as
a eutrophic loading (see page 11). Because of the persistent
nitrogen-limited condition in the lake, control of phosphorus
from septic tanks probably would not result in an improvement in
the condition of the lake. Further investigation is needed to
determine the contribution and controllability of phosphorus
resulting from agricultural practices in the drainage basin (Peter-
son, 1974).
2. Non-point sources--Non-point sources contributed 99.5% of
the total phosphorus load to Sweet Briar Lake during the sampling
year. Sweet Briar Creek, the only gaged tributary, contributed
67.6% of the total. The ungaged tributaries and immediate drain-
age contributed an estimated 30.8%.
The phosphorus export rate of Sweet Briar Creek (page 10) is
comparable to the rates of the smaller tributaries of Lake Saka-
kawea* (2 to 4 kg/km2/yr).
* Working Paper No. 575.
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Lake Morphometry :
1. Surface area: 1.10 kilometers2.
2. Mean depth: 2.9 meters.
3. Maximum depth: 8.5 meters.
4. Volume: 3.190 x 106 m3.
5. Mean hydraulic retention time: 183 days (based on outflow).
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Sweet Briar Creek 277.1 0.212
Minor tributaries &
immediate drainage - 115.5 0.020
Totals 392.6 0.232
2. Outlet -
Sweet Briar Creek 393.7** 0.202
C. Precipitation***:
1. Year of sampling: 51.8 centimeters.
2. Mean annual: 42.3 centimeters.
t Table of metric conversions—Appendix B.
tt Henegar, 1975.
* For limits of accuracy, see Working Paper No. 175, "...Survey Methods,
1973-1976".
** Includes area of lake.
*** See Working Paper No. 175.
-------
4
III. LAKE WATER QUALITY SUMMARY
Sweet Briar Lake 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 a number of depths at two stations on the lake in July and September
and one station in April (see map, page v). During each visit, a
single depth-integrated (4.6 m or near bottom to surface) sample was
composited from the stations for phytoplankton identification and
enumeration; and during the last visit, a single 18.9-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 4.6 meters
at station 1 and 5.5 meters at station 2.
The sampling results are presented in full in Appendix D and are
summarized in the following table.
-------
PARAMETER
TEMP
TOT P (MG/L>
ORTHO P (MG/D
N02*N03 (MG/L)
AMHONIA (MG/L)
KjEL N (HG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A
SCCCHI (METERS)
A. SUMMAftr OF PHYSICAL AND
1ST SAMPLING ( 4/30/74)
1 SITES
RANGE MEAN MEDIAN
11.8 - 11.9 11.9 11.9
8.6 - 8.8 8.7 8.7
456. - 461. 458. 458.
8.1 - 8.3 B.2 8.2
234. - 252. 242. 240.
0.061 - 0.076 0.06B 0.066
0.023 - 0.031 0.027 0.026
0.060 - 0.110 0.083 0.080
0.150 - 0.170 0.160 0.160
1.000 - 1.200 1.133 1.200
0.220 - 0.280 0.243 0.230
1.060 - 1.310 1.217 1.280
1.6 - 1.6 1.6 1.6
1.4 - 1.4 1.4 1.4
CHEMICAL CHARACTERISTICS FOK S«EET 9RI4KI *ESE*VGIK
STORET CUOE 3B14
2Nt) SAMPLING f 7/16/74)
2 SITES
RANGt
23.5 - 24.6
6.2 - 8.b
795. - 800.
8.8 - 9.0
272. - 284.
0.090 - 0.168
0.051 - 0.060
0.030 - 0.050
0.050 - 0.090
1.000 - 2.000
0.090 - 0.140
1.030 - 2.040
9.7 - 40.1
0.9 - 2.1
MEAN
24.2
7.5
798.
8.9
279.
0.119
0.055
0.040
0.065
1.300
0.105
1.340
24.9
1.5
MEDIAN
24.2
7.6
796.
8.9
279.
0.097
0.055
0.040
0.060
1.200
0.095
1.240
24.9
1.5
3*0 SAMPLING ( 9/17/74)
2 SITES
HANGE MEAN MEUiAN
14.3 - 15.4 14.7 14.5
9.6 - 10.a 10.2 10.0
570. - 580. 575. 573.
d.9 - 9.1 9.0 S».U
305. - 4t>0. 402. 41«.
0.079 - 0.62
-------
B. Biological characteristics:
1. Phytoplankton* -
Sampling
Date
07/16/74
09/17/74
2. Chlorophyll a_ -
Sampling
Date
04/30/74
07/16/74
09/17/74
C. Limiting Nutrient Study:
1. Autoclaved, filtered,
Dominant
Genera
1. Aphanizomenon s£.
2. Chroomonas sp_.
3. Cryptomonas sp.
4. Ankistrodesmus sp.
Total
1. Aphanizomenon sp_.
2. Chroomonas sp.
3. Gloeotrichia sp.
4. Schroederia sp.
5. Coelosphaerium sp_.
Total
Station
Number
1
2
1
2
1
2
and nutrient spiked -
Ortho P Inorganic N
Spike (mg/1) Cone, (ma/1) Cone, (mg/1)
Control 0
0.050 P 0
0.050 P + 1.0 N 0
1.0 N 0
.105 0.442
.155 0.442
.155 1.442
.105 1.442
Algal Units
per ml
3,415
556
357
79
4,407
3,997
735
92
46
46
4,916
Chlorophyll a
(uq/1)
1.6
9.7
40.1
122.1
21.5
Maximum yield
(mg/1 -dry wt.)
15.8
14.3
34.3
33.8
* The April phytoplankton sample was lost in shipment.
-------
7
2. Discussion -
The control yield of the assay alga, Selenastrum capri-
cornutum. indicates that the potential primary productivity
of Sweet Briar Lake was high at the time the sample was col-
lected (09/17/74). Also the lack of increase in yield with
the addition of phosphorus, until nitrogen was also added,
indicates the lake was nitrogen limited at that time. Note
that the addition of nitrogen alone resulted in a yield sig-
nificantly greater than that of the control.
The lake data indicate nitrogen limitation as well; i.e.,
the mean inorganic nitrogen/orthophosphorus ratios were 9/1
or less at all sampling stations and times, and nitrogen limi-
tation would be expected.
-------
8
IV. NUTRIENT LOADINGS
(See Appendix E for data)
For the determination of nutrient loadings, the North Dakota National
Guard collected monthly near-surface grab samples from each of the
tributary sites indicated on the map (page v), except for the high
runoff month of May when two samples were collected. Sampling was
begun in September, 1974, and was completed in August, 1975.
Through an interagency agreement, stream flow estimates for the
year of sampling and a "normalized" or average year were provided by
the North Dakota District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were
determined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. Nutrient loads for unsampled
"minor tributaries and immediate drainage" ("ZZ" of U.S.G.S.) were
estimated using the nutrient loads, in kg/km2/year, at station A-2
and multiplying by the ZZ area in km2.
No known municipal or industrial wastewater treatment plants
impacted the lake during the sampling year.
A. Waste Sources:
1. Known municipal - None
2. Known industrial - None
* See Working Paper No. 175.
-------
9
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Sweet Briar Creek 1,275 67.6
b. Minor tributaries & immediate
drainage (non-point load) - 580 30.8
c. Known municipal STP's - None
d. Septic tanks* - 10 0.5
e. Known industrial - None
f. Direct precipitation** - 20 1.1
Total 1,885 100.0
2. Outputs -
Lake outlet - Sweet Briar Creek 1,030
3. Net annual P accumulation - 855 kg.
* Estimate based on six lakeshore campgrounds; see Working Paper No. 175.
** See Working Paper No. 175.
-------
10
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source y_r total
a. Tributaries (non-point load) -
Sweet Briar Creek 14,430 61.6
b. Minor tributaries & immediate
drainage (non-point load) - 7,390 31.5
c. Known municipal STP's - None
d. Septic tanks* - 420 1.8
e. Known industrial - None
f. Direct precipitation** - 1.190 5.1
Total 23,430 100.0
2. Outputs -
Lake outlet - Sweet Briar Creek 12,265
3. Net annual N accumulation - 11,165 kg.
D. Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/kmVyr kg N/km2/yr
Sweet Briar Creek 5 64
E. Mean Nutrient Concentrations in Ungaged Streams:
Mean Total P Mean Total N
Tributary Cone, (mg/1) Cone, (mg/1)
Unnamed Creek B-l 0.457 4.470
Unnamed Creek C-l 0.315 2.817
* Estimate based on six lakeshore campgrounds; see Working Paper No. 175.
** See Working Paper No. 175.
-------
11
F. Yearly Loads:
In the following table, the existing phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Essentially, his "dangerous" loading is
one at which the receiving water would become eutrophic or
remain eutrophic; his "permissible" loading is that which
would result in the receiving water remaining oligotrophic
or becoming oligotrophic if morphometry permitted. A meso-
trophic loading would be considered one between "dangerous"
and "permissible".
Note that Vollenweider's model may not be applicable to
water bodies with short hydraulic retention times.
Total Phosphorus Total Nitrogen
Total Accumulated" Total Accumulated
grams/m2/yr 1.71 0.78 21.3 10.2
Vollenweider phosphorus loadings
(g/m2/yr) based on mean depth and mean
hydraulic retention time of Sweet Briar Lake:
"Dangerous" (eutrophic loading) 0.48
"Permissible" (oligotrophic loading) 0.24
-------
12
V. LITERATURE REVIEWED
Henegar, Dale, 1975. Personal communication (lake morphometry). ND
Game & Fish Dept., Bismarck.
Peterson, Norman L., 1974. Personal communication (drainage basin
characteristics). ND Dept. of Health, Bismarck.
_, 1975. Personal communication (North Dakota lake
rankings).ND Dept. of Health, Bismarck.
Vollenweider, R. A., and P. J. Dillon, 1974. The application of
the phosphorus loading concept to eutrophication research.
Natl. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
-------
13
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA TO BE USED IN RANKINGS
LA«E
CODE LAKE NAME
3901 LAKE ASMTABULA
3803 LAKE AUDUHON
3R03 BRUSH LAKE
3804 LAKE DARLING
3805 JJEVILS LAKE
3806 JAMESTOWN RESERVOIR
3807 LAKE LA HOURE
3808 HATEJCEK LAKE
3809 LAKE HETIGOSHE
3811 PELICAN LAKE
3813 LAKE SAKAKAWEA (GARRISON
3813 SPIRIT MOOD LAKE
3814 SWEET BRIAR RESERVOIR
3815 WHITMAN LAKE
MEDIAN
TOTAL P
0.260
0.067
O.Obto
0.274
0.6JO
O.U4
0.438
0.228
0.032
0.034
0.016
0.156
0.092
0.260
MEDIAN
INOHG N
0.160
0.220
0.095
0.250
0.140
0.365
0.380
0.44Q
0.080
0.070
0.150
0.290
0.090
0.260
500-
MEAN SEC
t 72. 250
446.222
44V. 143
466.750
44V. 333
438.667
421.400
475.167
389.167
360.500
408.733
417.633
440.800
478.333
MEAN
CHLOrtA
40.892
11.322
29.114
60.075
38.508
19.400
19.720
2.683
10.367
10.950
6.883
34.667
39.000
27.067
15-
MIN DO
10.600
11.000
9.000
11.600
14.600
8.800
15.000
14.400
9.000
12.800
10.800
15.000
8.800
9.200
HEDI
DISS OHTi
0.170
0.015
0.010
0.180
0.469
0.07u
0.290
0.179
0.010
0.006
0.007
0.082
0.031
0.185
-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBEH OF LAKES. WITH HIGHE* VALUES)
LAKE
CODE LAKt NAME
3801 LAKE ASHTAbULA
380? LAKE AUOUdON
3803 B««USrt LAKE
3BO* LAKE JAHLING
3805 DEVILS LAKE
3800 JAHESTOfcN RESERVOIR
3807 LAKE LA MOUHE
3808 MATEJCEK LAKE
3809 LAKE MEHGOSHE
3811 PELICAN LAKE
3812 LAKE SAKAKAWEA (GARRISON
381J SPIRIT WOOD LAKE
381* SWEET HRIAR RESEMVOIR
381S WHITMAN LAKE
MEDIAN
TOTAL P
?7 <
69 (
77 i
15 t
0 (
54 !
8 (
38 (
92 <
AS C
100 <
46 (
62 <
27 «
3)
9)
10)
2)
0)
7)
1)
5>
12)
11)
13)
6)
8)
3>
MEDIAN
54 (
46 (
77 (
38 (
69 (
15 (
8 (
0 (
92 (
100 (
62 (
23 (
85 (
31 (
7)
b)
10)
5)
9)
2)
1)
0)
12)
13)
8>
3)
11)
4)
500-
HEAN SEC
15 (
46 (
38 (
23 (
31 <
62 I
69 <
8 1
92 (
100 1
85 1
77 1
54 1
0 1
2)
b)
S>
3)
4)
8)
; 9>
! 1>
I 12)
: 13)
: ID
: 10)
; 7)
[ 0)
MEAN
CHLOKA
8 (
69 (
38 (
0 <
23 <
62 I
54 4
100 <
85 <
77 (
92 1
31 1
15 1
46 !
1)
9)
S)
0)
3>
8)
: 7>
i 13)
1 11)
( 10)
I 12)
I 4)
[ 2)
I 6)
15-
MIN 00
62 (
46 <
81 (
38 (
15 (
96 (
4 I
23 <
81 (
31 (
54 1
4 1
96 !
69 1
8>
b)
10)
5)
2)
12)
: o)
, 3)
! 10)
! 4)
1 7)
i 0)
I 12)
1 9)
MEDIAN
DISS OKTHO P
38 (
69 <
01 1
23 <
0 <
54 <
a i
31 (
81 1
100 1
92 1
46 1
62 (
15 i
5)
9)
10)
: 3)
: 0)
[ 7)
I 1)
1 4)
1 10)
1 13)
I 12)
1 6)
[ 8)
( 2)
INUtX
NO
204
345
392
137
138
343
151
200
523
493
485
227
374
188
-------
LAKE5 RANKED 6Y INDE* NOS.
LAKE CODE LAKE NAME 1NOE»
MtFIGOSnE
2 3«11 •'EL 1CAN Ltr.t: --?
J 331^ LAKE SAKAKA/iEA
6 3P03 LAKL AUOUtiGM 345
7 3B06 JAMESTOWN fl£St«VOI^ 343
8 3613 SPIRIT HOOD LAKE 227
9 3801 LAKfc. ASHTABULA 204
10 3808 MATEJCEK LAKE 200
11 3815 WHITMAN LAKt 188
12 3807 LANE LA MOUKt 151
13 3805 DEVILS LAKE 138
14 3P04 LAKE OAKLING 137
-------
APPENDIX B
CONVERSION FACTORS
-------
CONVERSION FACTORS
Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
-4
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 = Ibs/square mile
-------
APPENDIX C
TRIBUTARY FLOW DATA
-------
TRIBUTARY FLOW IfcFur'MAT ION FGrt NORTH DAKOTA
03/10/76
LAKE CODE 3814
b«EET 8HIAK LAKE
TOfAL DRAINAGE A*EA Of LAKE(SO KM) 393.7
ThMdUTAWY
3814A1
381<»A2
SUh-DRAlNA'iE
A«EA(SU KM)
393.7
377.1
41.4
JAN
FEH
1AR
APR
MAf
O.OOJ 0.028
O.OOo 0.037
0.0 0.0
0.991
0.028
0.850 0.2b5
0.350 0.283
0.113 0.0<*
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STOftET RETRIEVAL DATE 7«,/03'16
381^01
46 51 52.0 101 15 Sfa.O 3
b*EET iJKlAR RESERVOIR
3805* NOrtTH DAKOTA
llEHALtS 2111202
0015 FEET DEPTH CLASS 00
DATE
FROM
TO
74/04/30
74/07/16
74/09/17
DATE
FROM
TO
74/04/30
74/07/16
74/09/17
TIME DEPTH
OF
(JAY FEET
16 35 0000
16 3S 0005
16 35 0015
13 20 0000
13 20 0005
13 20 0015
15 10 0000
15 10 0005
15 10 0012
TIME DEPTH
OF
DAY FEET
16 35 0000
16 35 OOOS
16 35 0015
13 20 0000
13 20 0005
13 20 0015
15 10 0000
15 10 0003
15 10 0005
15 10 0012
00010
WATEP
TEMP
CENT
11.9
11. 9
11. a
24.0
24.0
23.5
15.4
14. e
14.6
00665
PHOS-TOT
MG/L P
0.061
0.0b6
0.076
0.095
0.090
0.0 V6
0.622
0.089
0.079
00300
DO
MG/L
6. a
8.6
7.2
6.2
6.6
10.8
10.6
9.6
32217
CHLRPHYL
A
UG/L
1.6
9.7
122.1
00077
TRANSP
SECCHI
INCHES
57
84
36
00031
1NCOT LT
REMN1NG
PERCENT
1.0
00094
CNDUCTVY
FIELD
MICROMMO
461
458
456
798
795
795
580
579
574
00400
PH
SU
8.25
8.20
8.10
8.80
8.80
8. SO
9.07
9.01
8.95
00410
T ALK
CAC03
MG/L
252
240
234
284
280
278
460
425
410
00610
NM3-N
TOTAL
MG/L
0.150
0.160
0.170
0.080
0.060
0.090
0.040
0.050
0.050
00625
TOT KJEL
N
MG/L
1.200
1.000
1.200
1.400
1.000
1.000
3.600
1.700
1.300
00630
N02&N03
N-TOTAL
MG/L
0.080
0.060
0.110
0.040
0.030
0.050
0.020K
0.020K
0.020K
00671
PHOS-DIS
OKTrlO
MG/L P
0.023
0.031
0.028
0.055
0.056
0.060
0.049
0.025
0.028
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STOPET RETRIEVAL DATE 76/03/16
381*02
46 52 24.0 101 16 09.0 3
SWEET BRIAR RESERVOIR
38059 NOrfTH DAKOTA
11EPALES 2111202
0022 FEET OEPTh CLASS 00
DATE
FROM
TO
74/07/16
74/09/17
DATE
FROM
TO
74/07/16
74/09/17
TIME DEPTH
OF
DAY FEET
13 45 0000
13 *5 0005
13 45 0018
15 05 0000
15 05 0005
15 05 0010
TIME DEPTH
OF
DAY FEET
13 45 0000
13 45 0005
13 45 0018
15 05 0000
15 05 0005
15 05 0010
00010
WATER
TEMP
CENT
24.6
2
00*10
T ALK
CAC03
MG/L
280
278
272
305
380
430
00610
NH3-N
TOTAL
MG/L
0.060
0.050
0.050
0.040
0.040
0.040
00625
TOT KJEL
N
MG/L
2. 000
1.200
1.200
1.500
1.500
1.400
00630
N02&N03
N-TOTAL
MG/L
0.040
0.040
0.040
0.030
0.020
0.020K
00671
PHOS-DIS
OR TrlO
MG/L P
0.059
0.052
0.051
0.025
0.029
0.027
K VALUE K.NOWN TO BE
LESS THAN INOICATtD
-------
APPENDIX E
TRIBUTARY DATA
-------
STOHET RETRIEVAL DATE 7&/C3/18
3814A1
<*6 51 49.6 101 13 35.0 4
brfEET uaiAH CRLEK
380SJ 7.5 JUDSON
0/SrfEET 8*1 AH LA^E
BHOO UN Ub ST 10 3.2 Ml SE Of
11EPALES 211120^
0000 FEET OEPTn CLAS5 00
JUDSON
DATE TIME OEPTri N02&N03
FROM Of
TO DAY FEET
74/09/22
74/10/20
75/03/22
75/04/18
75/05/02
75/05/16
75/06/20
75/07/18
75/OB/22
09 50
09 55
08 50
08 10
08 22
08 ?3
08 15
08 25
08 ?0
0630
&N03
OTAL
IG/L
0.004
0.02^
0.115
0.280
0.500
0.510
C.5<»0
0.130
0.055
00625
TOT KJEL
N
MG/L
o.soo
0.900
l.OOC
1.000
2.200
2.500
1.500
1.650
1.050
00610
NH3-N
TOTAL
MG/L
0.01C
0.045
0.1<»0
0.230
0.260
0.410
0.135
0.090
0.080
00671
PriOS-OIS
OWTHU
MG/L P
0.010
0.015
0.025
0.060
0.065
0.080
0.050
0.020
0.025
00665
HriOS-TOT
MG/L P
0.050
0.050
0.02S
0.090
0.400
0.180
0.140
0.120
0.110
-------
DATE 76/03/18
46 b4 45.0 101 23 62.0 4
SHEET riRlAH CREEK
33 7.5 Ntrf SALEM NE
T/S«EET cHIAK LAKE
DIRT «U oHUG *.0 Ml Nri OF JUDSON
11E^1 ALES 2111200
0000 FEET OEHTn CLASS 00
DATE
F«OM
TO
74/0^/22
74/10/20
74/11/17
75/OJ/22
75/04/lfl
75/05/02
7b/05/l6
75/06/20
75/07/18
75/06/22
00630 00625
TIME DEPTH N02S.N03 TOT KJEL
OF N-TOTAL N
LiAY FEET
09
(18
oa
08
08
08
08
08
08
08
00
?0
40
20
45
47
45
40
40
40
Mb/L
0,
0,
0,
0,
1,
0,
0,
0,
0,
0,
,006
,032
,008
,165
,250
.510
,280
,040
,015
.010
MG/L
1.300
1.000
o.aoo
1.550
2.100
1.300
2.100
1.650
O.S50
0.900
OC610 00671 00665
NHS-N PHOS-DIS PMOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
005K
025
025
200
410
185
110
040
050
015
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P MG/L t>
010
010
020
005
105
OflO
080
035
015
050
0
0
0
0
0
0
0
0
0
0
.050
.045
.040
.010
.170
.180
.320
.150
.060
.070
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET KET9IEVAL OftTE 7*1/03/18
00630
DATE TIME DEPTH N02&N03
FrtOM OF N-TOTAL
TO OAY FEET MG/L
00625
TOT KJEL
N
MG/L
75/04/12 08 30
75/05/02 06 35
75/05/16 08 35
75/06/20 08 30
1.200
1.680
0.400
0.400
2.700
3.300
4.600
00610
NH3-N
TOT4L
MG/L
0.790
0.74C
0.060
0.230
46 52 35.0 101 53 06.0 4
SALtH HE
3d
7.b fJ
ON SLC SO H.2
0000 FEE.T OEHTn
II N OK JUUSON
21112u4
CLASS 00
00671 00665
PHOS-UIS PrtOb-TOT
OHTHO
MG/L H MG/L t*
0.250
0.210
O.ObS
0.225
0.460
0.40Q
0.170
o.eoo
-------
,TCNET RETRIEVAL UATE 7fr/o3/i«
U0630
DATE TIME DEPTH NOZ&NOB
FROM OF N-TOTAL
TO UAY FEET MG/L
75/05/02 09 00
75/05/16 09 00
0.605
0.03V
00625
TOT KJEL
N
MG/L
1.900
3.100
00610
NH3-N
TOTAL
MG/L
0.067
0.065
00671
PHOS-DIS
MG/L
0.070
0.125
46 5b 00.0 101 20 15.0 <»
ONNAMtD CkEt^
38 7.5 NE» SALEM ME
T/SNEET ENIAA LAKE
b^OG ON SEC RO 5.7 M N OF JCT
llEKALEb 211120^
0000 FEET DEPTH CLASS 00
I9^/US 10
00665
PHOS-TOT
MG/L i»
U.210
0.420
------- |