ROSE LAKE
TRANSECT STUDY
FEDERAL WATER
POLLUTION CONTROL
ADMINISTRATION
NORTHWEST REGION
PORTLAND,OREGON
-------
ROSE LAKE TRANSECT STUDY
Station No. 153007
September 23 and 24, 1969
Prepared by
Gary L. Burns
Working Paper
No. 75
Technical Assistance and Investigations Branch
Office of Technical Programs
Federal Water Pollution Control Administration
Northwest Region
Portland, Oregon
April 1970
-------
A Working Paper presents' results of
investigations which are to some extent
limited or incomplete. Therefore,
conclusions or recommendations
expressed or impliedare tentative.
-------
CONTENTS
Page
INTRODUCTION
Purpose 1
Objectives 1
Authority 3
Sampling Program 3
SUMMARY
Findings 4
Conclusions 8
Recommendations 11
STUDY AREA
Station Location and Description 12
SAMPLING AND ANALYTICAL METHODS
Sampling Methods and Schedule 13
Analytical Procedures 13
DISCUSSION . . 15
REFERENCES . 17
APPENDIX 18
-------
FIGURES
Figure No. Page No.
1 General Location Map 2
2 pH and Total Coliform Diurnal Values
Cross-Section Aveage) 5
3 Temperature and Conductivity Diurnal Values 6
4 Dissolved Oxygen and Percent Saturation
Diurnal Values (Cross-Section Average) 7
TABLES
Table No. Page No,
1 Rose Lake Stream Survey Data 9/23-24/69 9
2 Quarterly Report of FWPCA Water Quality
Monitoring Stations, Dalene River at
Rose Lake, Station No. 153007 11
-------
INTRODUCTION
Purpose
The Federal Water Pollution Control Administration (FWPCA),
Pollution Surveillance Branch, maintains a system of water quality
sampling stations on interstate waters in the Northwest Region.
Throughout the year water samples are collected at these stations
and analyzed, and the data are used to evaluate water quality.
Knowledge of conditions peculiar to each station is helpful in the
evaluation of the data obtained. This study documents conditions
at Station No. 153007 located at river mile 153.4 on the Coeur d'Alene
River approximately five miles below the confluence of the North and
South Forks (Fig. 1). Diurnal and spatial variances at the station
were observed during a 24-hour period.
A similar study was performed on April 1, 2 and 3, 1969. The
report on that study is available in the files of the Pollution
Surveillance Branch.
Objectives
The objectives of the survey were to determine:
1. What is the optimum sampling point in the stream cross-
section?
2. What are the diurnal changes occurring in physical, chemical,
biochemical, and bacteriological water quality at the sampling site?
3. What factors influence water quality at the sampling site?
-------
5 10 ao so so
General Location Kap
FIGURE 1
-------
Authority
Authorization for this study was from the Federal Water Pollution
Control Act (33 U.S.C. et seq.) as amended. The study was performed
by the Technical Assistance and Investigations Branch of the Office of
Technical Programs as requested by the Pollution Surveillance Branch.
Sampling Program
1. Six water samples were collected every two hours for a
24-hour period. The initial sample collection was at 1300 hours
(1:00 pm) on September 23, 1969, with the final samples obtained at
1100 hours (11:00 am) on September 24, 1969.
2. Three equally spaced sampling points were selected across
the river on the bridge. Two samples were taken from each point, one
at the five-foot depth and another five feet above the bottom.
3. The follo.v/ing analyses were performed on the samples: pH,
specific conductivity, dissolved oxygen, total alkalinity, total
coliform, and temperature.
-------
SUMMARY
Findings
1. The total coliform concentrations shov; a minimum value'
of 45 total coliforms per 100 milliliters (TC/100 ml) at 1500 hours
through 1700 hours. The peak of 406 TC/100 ml occurred at 2300 hours,
By 0700 hours the concentrations had dropped again to 60 TC/100 ml
(Fig. 2).
2. The only fecal coliform organisms detected were at
1300 hours and at 0100 hours. The concentrations were (5 fecal
coliforms per 100 milliliters (FC/100 ml).
3. The diurnal temperature fluctuation x>?as only 0.5° C.;
temperatures registered 13° C at 1300 hours through 2100 hours, then
gradually decreased to 12.5° at 0300, and remained at this value for
the remaining eight hours (Fig. 3).
4. At 1300 hours dissolved oxygen (DO) and percent saturation
were 9.0 milligrams per liter (mg/1) and 91 percent respectively.
The high values of 9.5 mg/1 DO and 96 percent saturation occurred at
2300 hours, and then decreased gradually (Fig. 4). '" " .
5. The specific conductivity and pH values displayed similar
diurnal patterns. The maximum values recorded at 1500 hours were
7.4 pH and 200 micromhos per centimeter Gumho/cm) conductivity.
~ All values quoted in the Findings,with the exception of flow
data and metals concentrations, are bi-hourly averages for the entire
cross-section.
-------
75 ,
74 -
73'-
72 -
71 -
70 -
69 -
Time: 1300 1500 1700 1900 2iOO 2300 0100 0300 0500 0700 0900
o.
1000
400 1
350
300
250
200
r- E
O
<-J O
r 150.
100
50
Time: 1300 1500 1700 1900 2100 2300 0100 0300 0500 . 0700 0900 1000
-pH and Total Coliform Diurnal Values (Cross-Section Average)
FIGURE 2
-------
,
o e
135-
130"
125.
Time? 1300 1500 1700 1900 2iOO 2300 0100 0300 0500 0700 0900 1000
e
o
a r^
c o
O X
u e
230i
220.
210
200"
190-
180
170J
1300 1500 1700 ' 1900 2100 2300 0100 0300 0500 . 0700 0900 1000
Temperature and Conductivity Diurnal Values
FIGURE 3
-------
S 60
B
96
95
94
93 .
92
91
90
Time: 1300 1500 1700 1900 2iOO 2300 0100 0300 0500 0700 0900
1000
4J
a
96
95
94
93
92
91 .
1300 . 1500 1700 1900 2100 2300 0100 0300 0500 . 0700 0900 1000
Dissolved Oxygen and Percent Saturation Diurnal Values (Cross-Section Average)
FIGURE 4
-------
8
The values steadily decreased until 0900 hours the next day, when
pH was 6.9 and conductivity was 189 jimho/cm (Fig. 2 and 4).
6. The alkalinity concentrations remained steady throughout
the 24-hour period at 25 to 30 mg/1 total alkalinity.
7. The quarterly STORET retrieval from the Pollution Surveillance
Branch shows metals concentrations for the first day of the
survey (9/23) were: copper3 micrograms per liter (jag/1) , total
iron650 jug/1, dissolved lead55 jug/1, zinc100,000 jug/1 (Table 2).
8. The mean daily discharges recorded by the U.S. Geological
Survey at Cataldo were 438 cubic feet per second (cfs) for 9/23/69
and 494 cfs on 9/24/69.
Conclusions
1. Generally speaking, transverse and vertical variations in
pattern values were essentially nonexistent (Table 1).
2. Sample collection may be at any point in the main cross-
section to obtain a representative specimen.
3. The upstream factors that influence water quality at the
station are:
a. The South Fork of the Coeur d'Alene River receives
untreated wastes from mine tailings, acid industrial wastes from
zinc, and lead smelter operations, phosphoric acid wastes, and wastes
from an antimony plant on Big Creek. The mine and smelter wastes
contain heavy loads of suspended sediments and biologically toxic
concentrations of lead and zinc.
-------
TABLE 1
ROSE LAKE . STREAM. SURVEY DATA
9723-24/69
TIME
STATION
1300
15.QO
1700
1900
2100
2300
0100
0300
0500
0700
0900
1100
TEMPERATURE WC
ABC
13.0
13.0
13.0
13.0
13.0
12.8
13.0
12.5
12.5
12.5
12.5
12.5
13.0
13.0
13.0
13.0
12.8
12.8
13.0
12.5
12.5
12.5
12.5
12.5
13.0
13.0
13.0
13.0
12.8
12.8
12.8
12.5.
12.5
12.5
12.5
12.5
A
7.2
7.6
7.3
7.3
7.0
7.0
6.9
6.9
6.9
6.9
6.9
6.9
PH
B
7.5
7.4
7.3
7.3
7.1
6.9
7.0
6.9
7.0
7.0
6.9
7.0
C
7.5
7.3
7.4
7.1
7.1
7.0
6.9
6.9
6.9
7.0
6.9
7.1
CONDUCTIVITY
ABC
205
220
210
209
205
195
200
191
195
199
197
165
218
220
199
185
195
196
187
199
187
184
191
170
220
223
199
200
203
198
204
197
197
188
187
159
DISSOLVED OXYGEN
ABC
8.9
9.1
9.0
9.4
9.4
9.5
9.5
9.4
9.3
9.2
9.1
9.2
9.1
9.1
9.2
9.3
9.5
9.5
9.4
9.5
9.3
9.2
9.2
9.3
9.1
9.1
9.2
9.3'
9.5
9.5
9.4
9.4
9.3
9.2
9.2
9.3
% SATURATION
Ax B C-,
89
92
93
95
95
96
95
95
94
93
92
93
92
92
93
94
96
96
95
96
94
93
93
'94
92
92
93
94
96
96
95
95
94
94
93
94
TOTAL COLIFORM
ABC
640
178
50
40
165
330
610
215
90
85
80
145
110
160
50
55
65.
440
180
85
50
110
60
110
125
180
30
40
55
450
165
100
165
90
65
110
-------
TABLE 2
QUARTERLY REPORT OF FWPCA WATER QUALITY MONITORING STATIONS
DALENE RIVER AT ROSE LAKE
STATION NO. 153007
DATE
FROM
TO
69/07/08
69/08/05
69/08/26
69/09/23
TIME
OF
DAY
1800
1300
1730
1615
SWL
FBI
mg/1
COPPER
CU
ua/1
12
12
3
3
IRON
TOTAL
ug/1
340
670
275
650
LEAD
PB,DISS
UR/1
50
93
30
55
SILICA
DISSOLVED
mg/1
9.6
11.0
12.0
11.0
ZINC
ZN,DISS
us/1
2110
3850
5700
10000
COLOR
PT-CO
UNITS
5
15
COLIFORM
DLY ENDO
MF/100ML
25
1750
-------
11
b. Raw municipal waste is discharged into upstream waters
from the communities of Wallace, Mullan, Osburn, Silverton,
Smelterville, and the Burke-Male-Gem area. The city of Kellogg also
discharges lagoon-treated municipal wastes.
Recommendations
1, Dissolved oxygen analyses should be performed using both
the Winkler (Azide) Method and a dissolved oxygen probe to determine
if the Winkler Method is distorted by the heavy metals concentrations
in the water. This procedure is recommended for all routine sampling
stations that monitor waters from the South Fork of the Coeur d'Alene
River.
2. The routine samples should always be collected at approxi-
mately the same time of day. If possible, the upstream industrial
schedule should be obtained for the day previous to and the day of
sampling. ' .
3. A 24-hour survey at the sampling station should be conducted
on a quarterly basis.
4. An extensive survey should be conducted in the area, con-
centrating on the effects of heavy metals and the origin of bacter-
iological contamination.
-------
12
STUDY AREA
Station Location and Description
The Rose Lake Station No. 153007 is located at river mile.
153.4 on the Coeur d'Alene River approximately 15 miles below the
town of Cataldo and approximately 25 miles above the entry of the
Coeur d'Alene River into Coeur d.'Alene Lake (Fig. 1).
The specific location is: lat 47°32'13" N, long 116°28'16" W.
-------
13
SAMPLING AND ANALYTICAL METHODS
Sampling Methods and Schedule
Water samples were collected every two hours during the 24-hour
period. Collection was made at three predetermined cross-section
points, with two vertical profile samples taken at each of the three
points. The samples were obtained using a Kemmerer Sampler. A
single "haul" provided enough water to fill containers for chemical
(dissolved oxygen, conductivity, pH, and alkalinity), and bacter-
iological (total and fecal coliform) analyses.
Dissolved oxygen samples were chemically stabilized at the time
of collection for titration upon return to the field laboratory.
Temperatures were noted and recorded at the time of sampling
using a hand thermometer.
All of the analyses were performed in a 17-foot enclosed labor-
atory trailer stationed near the sampling point.
Analytical Procedures
The following laboratory methods v?ere used for analysis:
pH was determined with a Beckman Zeromatic Model pH meter.
Specific conductivity analyses were performed using a Beckman
Model RB 3-327 conductivity bridge.
~~ The mention of brand names is for identification only, and
constitutes no endorsement by the United States Department of the
Interior, Federal Water Pollution Control Administration.
-------
14
Dissolved oxygen samples were titrated for quantity, using the
Alsterberg (Azide) modification of the Winkler Method as found in
"Standard Methods" (1).
Alkalinity was determined by titration with a Hach Model DL-ER
portable laboratory.
Fecal coliform determinations were conducted using the membrane
filter method according to the procedures as described by Geldreich (2)
In studies by Geldreich (3) this method was confirmed as comparable to
the most probable numbers method for fecal coliform as described in
"Standard Methods" (1)
All the bacteriological samples were incubated and counted in
the field.
-------
15
DISCUSSION
The diurnal parameter patterns are illustrated in Figures 2,
3, and 4. It is noted that a sharp rise in total coliform,. dissolved
oxygen, and percent saturation values and a decrease in pH and con-
ductivity occurred at 2300 hours. This phenomenon is apparently
caused by waters from the daily mining and domestic activities of
upstream communities converging on the sampling point. A consistent
flow of 438 cfs was recorded on September 21, 22, and 23, and the
flow increased to 494 cfs on September 24. This increase in flow,
combined with the lack of algal activity and the possibility of
o /
analytical interference due to high iron concentrations' could
account for the increased dissolved oxygen values recorded at
2300 hours.
Because of the extreme seasonal and daily variability in water
quality conditions, and the numerous factors that influence the
patterns (flow, industrial and domestic activities, rainfall, etc.),
the instigation of a quarterly 24-hour cross-section sampling program
would yield more interpretive data.
Mining and smelter wastes contribute heavy loads of suspended
sediments and biologically toxic concentrations of lead, copper, zinc,
' It is stated in "Standard Methods": (1) "The Alst.erberg
modification is used for most sewage, effluents and streams if they
contain not more than 1 mg/1 ferrous F . Other reducing or oxidiz-
ing materials should be absent."
-------
16
and arsenic to the South Fork of the Coeur d'Alene River. As a re-
sult, the South Fork has become biologically sterile. Both the
South Fork and the Main Stem have been destroyed for water uses
except waste disposal. Farm lands along the river must provide dikes,
flood gates, and pumps to prevent these toxic wastes from reaching
the fields.
Although insufficiently treated municipal discharges introduce
high bacteriological concentrations into the South Fork, the prime
cause of pollution is the presence of toxic concentrations of heavy
metals. The South Fork of the Coeur d'Alene River sewer district
has completed an engineering study on sewage collection and treat-
ment, and is in the process of securing financing.
The State of Idaho reports the mining operations are installing
tailing ponds to remove silt and sand from mine washings, and are
studying treatment procedures for the reduction of contaminants from
metal processing operations and significant sources of mine drainage.
Field Data
The appended material contains all field and laboratory bench
data obtained during the study.
-------
REFERENCES
(1) American Public Health Assoc., Inc. Standard methods for
the examination of water and wastewater, 12th ed. 1962.
(2) Geldreich, Edwin E., et al. Fecal coliform organisms
medium for membrane filter technique. Journal American
Waterworks Assoc. 57:2, 208-214 1965.
(3) Geldreich, Edwin E., Sanitary significance of fecal coli-
forms in the environment. Water Pollution Control Research
Series Publication No. WP-20-3. U. S. Department of
the Interior, Federal Water Pollution Control Administration,
1966.
-------
APPENDIX
STREAM SURVEY DATA .
-------
STATION! NO.
9/23/70
TREAM SURVEV DATA
PAGE
O~
.
r V-\ f~\ A N^t ul T" *""" *" '
i
rCTNi R °C
CONJD. ,o.7V,c,
1 ''
O TtT.c/v IT
OQ . , , , ,n ,'.
-i ALr<. v
j [ r-io'l. j V/H.'.jE
u.' ' TTP/IMT
>: D,O, -'-''
T. Coll.
. . Fpr?l P.nn .
TEMP. "C
COMD. f- ,-\ r«/-
w 1 ^: "".. ;..-
F T. Coli.
Fecal Coli .
LOG/
A B
'
j 13.0 13
i 190 T,
7.1 7
so :
i
1
i
8.7 9
1100 M
0
13.0 13'
i
220 22
7.5 7
25 C
i
9.1 9.
180 ' 17
0
xTiON: -sM
C
0 ; 13.0
?0 215
3 7.4
l
50 ' 30
0 9.1
50 120
i
0 0
0 13.0
!0 220
l
7 7.3
!0 30
1 9.1
0 120
0 0
1
cnos?
D
13.0
220
7.5
30
9.1
100
0
13.0
. 220_.
7 fi
25
9.1
200
0
E
13.0
225
7 5
30
8.9
150
2
13.0
220
7 5
30
9.0
60
2
\ (^
~ ~ '
13.0
7,R
35
9.2
100
2
13.0
-225
7 1 -,-
30
9.1
100
_JL_
c Kev c
Ni PAGIi ',
......_ .. .
.
i
! ST
i MAX.
i
:
!
i ' .
L
!
i . -
i
i
i
1
j
1
i
i
i
i
!
l
i
i
!
i
!
1
|
1
i
i
AT \ rrr
~ ~~ '
l
! f r/ 1
i
~ -
-------
5 TAT; ON/ N^
9/23/70
15300?
^v , k , , s^. I »
*^~OJ^ A ,/, \i ;r^\/r.zv/ . '/»* A
_/ ; r-. ft. /-A ' > . i -\.V : i*/' ''^
OF_6
i LOCATiOM- ;X] CROS5 ACTION: ("CM-.!: KEY ON.< PAG."'.) STATISTICS j
r -\*\ i""^ xs */ ["""T* *-*' ^7 1 1!
![*/* I /*J) . ^ ){ 1 1 ;- « . ., ! , . . ,. 1
:. ' . i *
TC.MP. °C i 13>0
COrJO. ;j.r,ho 22Q
_! I I
P t i "7 O
0 ! /.£
H AU;<. i '"'
ovj/i. ; VALUE: 25
J I D.O. :."r';-;'M:'
,- vv-.;,/i. j VP.LUe i 8.8
T. Coll. 1 50
i I 1 Wv M^. /v- i
B- C ! D j E ! F i - ! ' "*- ' 11(- j AV':!- j
13.0 13.0 13.0 | 13
.0 i 13.0 ! !
j ' j i i ! i .]
200 i 198 200 ! 200 ! 198 ! 1 1
7.3 7.2 7.4 7
- I
25 , 25 L 25 i
. ' .!
9.2 9.2 9.1 9
.4174! ii' '
( ..... . 1
25 25 ! j i
i ! i! ' '
; j
.2 9.2 i
i : : i |l
50 70 30 50 10 I
i 1
For.,1 Tnli 0 0 0 0
TEX; P. »C i 13 0
COMD. r-
-------
3TAT i O Ni NO. 1530Q7
9/23/70
URVEV ATA
p>\pAr^")PTER .
TEM R °C
CONJD- ?.:<"n'no
pM
g! i hrrfcAMT
°: A' '< '".'
oa /S'_f\.
! >»?/!. ' VALUE;
111 ', T,T(Vi.-.)T
v- T-> O '''
^ u. --A -
.- »>*>/;. vwj£
"" ~" '
T. Coli.
: Frrnl Coli .
TEM P. "C
CON! D. |--av>'.o
PH
j T.Tf'-'iMT
oi A; i/ . '.!
g | .,b>V WLUJ."
i j TirCAfJT
rl o : ^'^
_ 'Nv''./\. ',' V/-!~IJE
\ " )
f- T. Coll.
1
j Fecal Coli.
LOG AT1,
A B
| 13.0 13.0
210 200
6.8 7.1
i i
!
25 25
9.4 9.4
80 250
0 0
12.8 i 12.8
!
200 : 190
7.0 7.0
i
25 30
1
9.4- 9.5"
280 - 380
0 1 0
| '
OM .IN
c
12.8
200
7.0
25
9.4
40
0
12.8
198
6.q
30
9.4
470
0
CROSS
D
12.8
190'
7.1
25
9.5
90
_. 0 .
12.8
19 2_
fi,Q
30 '
9.5
410
0
i?.t-;cT;o:
E
12.8
195
7-.1
25
9.4
130
D_.
12.8
"
18R
7. JO
25
9.4
330
0
. /
F
12.8
210
7.1
25
9.5
80
.. 0 .
12.8
- _2oa
7 0
30
9.5
570
0
E KCY C
H PAG." \f
\
.
t
STAT! 5T1C o
MA>.'. i M!M. /\V'';.
!
! i
1 1
i ;
i
i
i
i
i
i
j
i 1 :
! i
1
!
! i
i ;
; i
i
i
i
j j
j
i
i
i
-------
3TAT;ON MO.
9/24/70
153007
STREAM SURVEV DATA
PAG"._ A OF.
1 1 '
| A B
TEMP. ~C j 13.0 13.0
t "" " ]
COKi!"'. 'j''r\'rc^ ! 9nn onn
^' - / " ^ i tUU /|. VALUE | " "
111 ^ T.TP/.MT i
- [?>S/i. "vnwr. j 9-4 '9.5
T.. Coli. i 47° 75°
! F-,1 rnn 1 0 j 0
,.v .7.^ cv. ii - - - T
i i. ii i
''"""' l! ^8 6 Q
i1 - : u . o , ..\j...j...
! Tivt'^wr 'i i
g /\i '/ i- >"-M' i!
g ,^,V/;.' ! WU.UJ.-' | 30 30
! ! r *'.'"* jj
^ -y\. ! VMLUE 1 9.4 9.4
P T. Coli. 270 -- 160
Fecal Coli. ! 0 0
1
ON. IN! C^OSS
C 1 D
i
13.0 i 13.0
ioc i on-
lo b i- i y u
7.0 i 6'. 9
i
1
25 | 25
t
9.4 .|' 9.4 '
200 | 160
0 | 0
12.5 ! 12.5
188 ! 200
i
69' 69
30 ! 25
!
i
9.4 i 9.5 '
i
50 j 120
;
0 i 0
i
,
t.
12.8
onr\
£UU
. 6.9
25
9.3
100
2
12.5
.
?nn
6 °
25
9.4
70
0
,! UG
F
12.8
OA"7
207
6.9
30
9.4
230
0
12.5
194
/- n
h , y
25
9.4
130
0
: Key OM PAG.-:) j STATISTICS
;
MAX. HIM. AV(";,
'""'" ... - - [_. -, >,-_. ._ ......._..
| ' i
|
.
1 |
j
! !
i ; ;
i i
i i
! ' i
1 ,! ' '
t:
i '
i r " "
i . .
1 1 ' i
: jj
j
|| '|
i
> « i i
i ! ....._ ' ;
; i " 'f
i!
1 j
1 "
-------
STATION MO.
9/2.4/70
1530Q7_
D T REAM OURVEV DATA
PAGE __5__ O F 6
_O CAT !
pAf-;ANAri7~~> '
il " """ ' ""
| A B-
i ' - <
TEMR "C |j 12<5 12_5
CONJO. f-.MT.So 2oo 190
PU i
t" ' 6.9 6.9
g riT«A.MTii |
d /\! < |, ""'.' ji
»v7-j/i. j VALUE ij 25 25
| D.O. -T'TM.MT . ..
v i v*/ 1. : vrj '..{_; £ Q 7 0 Q
; [ ' , ; J * *J J O
' ! i
1 T. Coli . i 60 i 130
|
For,i1 Pnl-; . li 0 .! 0'
TF-'v.x'O T !'
. ^ n...,^, . c , 12<5 12.5
CON-.D. «.>!>/? 188 200
!
P^1 ! 6.8 6.9
j "Ti?rtMT ;
S ^A V/\LUJ:- i 25 25
o . ' !i .._ -
j | i Tiri-'A.KiT |
i->, .*-) r«j. j
w ^r/(. "V/ILUC '9.1 '9.3"
\ r .!
h T. Coli. 90 ^-100
Fecal Coli . ! 0 0
! 1
! !
OM .!N CROSS SECTipKi (f^r?
i !
C i D ; E |F
12.5 12.5 12.5 i 12.5
i
185 188 -i 192. ': 200
i
7.0 7.0 i 6.B i fi.Q
| i
25 25 25 | 25
9.2 ! 9.3 9.2 i 9.3
60 40 140 ! 190
o ; o o ! o
12.5 12.5 12.5 1 12.5
" " " " :~ *' '
180 188 194 i 182
6.9 7.0 6.9 1 7.0
! i
25 ' 25 ' 25 I 25
i
|
9.2 9.2 9.1 9.2
120 100 i 80 j 100
0 I 2 0 ! 0
;
k KrJY c
w pAGn r
!
j
1
!
i
!
i
j
i
1
!
i
i
i
i
j
t
i
STAT1 STIC S
]
MAX. K;i.\i. j AV'.~.
! 1
i
|
1
i
t
|
i
j
i
t
1
; '
i I
i
i
l
!
-------
5TAT ION NO.
9/24/70
153007
T~ O';r f\ T-./I V '.f'N/^r
1 !\ C. A-\ l . »_/ O ,-\V C
PAGE _6 OF.
i LOCATION IN CROSS
A | B C D
TfJ.XR "C 12.5 12.5 12.5 12.5
CO.SJO. p-nho i98 195 195 | 187
PH ' 6.8 6.9 6.9 6.9
i T: Tf-; A,- ,-T
AII- i n'' '
. \ 1'~* r
rvtfj'/i. ; VAi.ua 25 25 25 "25
i
Q o '- ''''''' -
>Wi. vfl«.-.E i .9.0 9.1 9.2 ! 9.1
I ' 1
T. Coli . 1! 50 40 60 60
rpr.ii r.nii 'i 0 i o o n
T"~kxP °r '' ' '
'" 12.5 12.5 ' 12.. 5 12 5
Ii
CCK'D ur,-;^ 1
' "- ! 160 170 170 169
P'"' II 6.9 6.9 7.0 6.9
AiK I"""! . .
.,:,y/', j V/Uur j 25 25 j 25 25
] TirCA,,i-r i
;-:vy\' : v/li-UE 9.2 9.2 9.2 9.3
T. Coli. ' i 160J ~ 130 i 120 100
1 ii i
Fecal Coli. F Q! 0 0 0
ii
ii
I-.ECTlOki ("sen KCY ON RAGE 0 Ij ' STATISTICS '
T? " ! pi MAX. MiiM. AV^.
11 ! r 1 . !
i " ' ' : l ~~"i
12.5 12.5 !
i
175 178
! !
6.9 6 Q
|
25 25 i
1
9.2 9.1 | i
i
30 100 i l i
0 0 ^ . _ . i J
__ _
1 2 5 1 ? 5 ' '
1 k_ I N^ 1 t» « \^ ' ' .i..i
!
158 160 '
7.1 7.0 I
i i
25 25 i
i i
! ! 1 .
9.2 9.3
j i ' '
70 130 1 i
i '
0 0 i
i 1 i
i l!
r~
------- |