POMME DE TERRE LAKE
BACTERIOLOGICAL STUDY
HARRY S,TRUMAN
DAM& RESERVOIR
LAKE OF
THEOZARKS
STOCKTON
LAKE
POMME DE TERRE
LAKE
ENVIRONMENTAL PROTECTION AGENCY
WATER QUALITY OFFICE - REGION VII
911 WALNUT, KANSAS CITY, MISSOURI 64106
MARCH, 1971
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POMME DE TERRE LAKE
BACTERIOLOGICAL STUDY
(MISSOURI)
ENVIRONMENTAL PROTECTION AGENCY
WATER QUALITY OFFICE - REGION VII
911 WALNUT, KANSAS CITY, MISSOURI 64106
MARCH, 1971
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This is the
Superintendent of Documents
classification number:
EP 2.2:
P77
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This report was prepared by Region VII of the Environmental
Protection Agency-Water Programs, under the overall direction
of Mr. John M. Rademacher, Interim Coordinator. The report
was written by Mr. Thomas 0. Dahl in cooperation with the
Office of Technical Support.
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TABLE OF CONTENTS
PAGE
I. INTRODUCTION
Problem 1
Purpose 1
Scope 2
Authority 2
Acknowledgments 2
II. STUDY AREA DESCRIPTION
Topography 3
Geology 4
Climate 4
Population 4
Economy 5
Water Use 5
III. SAMPLING AMD ANALYTICAL PROGRAM
Survey Dates Selection 6
Sample Point Selection 7
Sampling Procedure 8
Analytical Methods 9
Analytical Procedures 10
IV. DATA EVALUATION 11
V. CONCLUSIONS AND RECOMMENDATIONS 13
VI. APPENDIX
Tables - 1-5
Figures - 1-2
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I. INTRODUCTION
Problem
The State of Missouri's Water Quality Standards as approved by
Secretary of the Interior, July 30, 1970, include the following fecal
coliform bacteria criterion for Pomme de Terre Lake:
"The fecal coliform, in waters designated for whole body
water contact recreation, shall not exceed a geometric
mean of 200/100 ml (either MPN or MF count) nor shall
more than 10 percent of total samples during any 30-day
period exceed 400/100 ml (either MPN or MF count). The
above criteria shall not be applicable when the lake is
affected by storm water runoff."
Since completing the reservoir in 1961, the Corps of Engineers
has installed five "package plants" (extended aeration waste treatment
plants) to serve the public use areas of Hermitage, Damsite, Bolivar,
Lightfoot and Wheatland. Each plant has a design capacity of 5,000 gpd
with the exception of Damsite which has a 10,000 gpd design capacity.
The unchlorinated effluents from the plants are discharged to the lake,
thereby potentially contributing to violations of State Water Quality
Standards.
Purpose
The objectives of this study were (1) to correlate the fecal coliform bac-
teria group levels with recreational usage of facilities at Pomme de Terre Lake.
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and (2) to determine compliance with State Water Quality Standards. As
a result, the study was divided into a Pre-recreational Usage Phase I
and a Heavy Recreational Usage Phase II to emphasize the recreational
impact.
Scope
1. Location -
Sampling was confined to a localized area on Pomme de Terre Lake
to minimize the inherent variability of a relatively small number of
samples taken over a vast area. As a result, the two heaviest used public
use areas, Hermitage and Damsite, were selected and isolated from the rest
of the Lake.
2. The Study -
Two 10-day sampling periods were selected: one in April to reflect
bacteriological conditions prior to recreational usage and the other fol-
lowing the 4th of July weekend to reflect conditions at near peak usage.
Authority
Section 5(a) of the Federal Water Pollution Control Act, as amended,
provides "The Secretary (now Administrator) shall conduct ... encourage,
cooperate with, and render assistance to other appropriate public ...
authorities, ... and individuals in the conduct of, ... investigations ...
and studies relating to the causes, control and prevention of water
pollution."
Acknowled gment s
The assistance and cooperation of the U.S. Army Corps of Engineers
is gratefully acknowledged.
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II. STUDY AREA DESCRIPTION
Topography
The Pomme de Terre, an intrastate tributary of the Osage River, rises
in western Webster County (southern Missouri) and flows generally north
through a portion of Greene County, through Polk and Hickory Counties,
and empties into the Osage River near the former town of Fairfield,
Missouri.
The River Basin comprises 828 sq. miles of which 611 are controlled
by the Pomme de Terre Lake. With a basin length of approximately 50 miles
and a maximum width of 28 miles, it varies from rolling to hilly in the
upper basin and hilly to steeply hilly at the lower end. The upper basin
is largely crop and pastureland, whereas the lower basin is mostly timber-
land.
Pomme de Terre Dam, completed in 1961 and located approximately three
miles south of Hermitage, Missouri, is a rolled earth-fill structure with
an overall length of 7,240 feet and a maximum height of 155 feet above
streambed. This dam provides 407,000 acre-feet of reservoir storage at
the top of flood control pool elevation 874.0* and 243,000 acre-feet at
multiple purpose pool elevation 839.0*. Pomme de Terre Lake was authorized
by Congress for flood control, navigation, power generation, and other
conservation uses; however, power generation facilities have not been
developed, and navigation needs have not been determined. Principal uses
are flood control and recreation.
*Feet above sea level
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Geology
The Pomme de Terre River Basin, located in the western part of the
Ozark Plateau Province, is characterized by maturely dissected plateaus,
with submaturely developed stream valleys and moderately rolling uplands.
The Gasconade Dolomite forms the lower and middle valley walls, whereas
the Roubidoux Sandstone of Ordovician Age lies above the Gasconade Dolomite.
Climate
1. Temperature -
Mean air temperature values range from 34°F in January
to 78°F in July, with a minimum recorded temperature of
-32°F and maximum of 115°F.
2. Precipitation -
The mean annual precipitation is 41" with a maximum of
63.6 in 1927 and a minimum of 26.8 in 1953.
Climatic conditions as they relate to coliform bacteria levels, include:
1. Rainfall induces land runoff which is a source of coliforms.
2. Warm weather promotes body contact recreation.
A summary of climatic conditions during the survey periods is included
in Table 1 and Figure 1.
Population
The only towns in the basin above Pomme de Terre are Bolivar, Missouri,
population 4,624 and Buffalo, Missouri, population 1,915 (1970 census) which
discharge their unchlorinated trickling filter effluents to tributaries of
the Pomme de Terre River and Lindley Creek respectively.
The short term population of the Pomme de Terre Lake area increase
drastically during the summer months, reflecting the recreational
4
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use of the reservoir. To illustrate this point, Corps of Engineers personnel
estimated that 145,000 people went through their public use areas on the 4th
of July weekend, 1970. This naturally also increases the usage of public use
area toilet facilities.
In addition to these fishermen, campers, waterskiers, sightseers, etc.,
a number of permanent and seasonal dwellers own homes around the lake, utilizing
septic tank systems. By Corps regulations, these residences and their septic
tank drainfield must be above the reservoir full pool elevation.
Economy
The economic mainstay for the Pomme de Terre Basin is agriculture,
principally dairy farming, in addition to cattle raising and crop farming.
With the advent of the reservoir, tourism has also played an increasingly
more important role in localized areas.
Water Use
The Missouri Water Quality Standards, as approved by the Secretary of the
Interior, July 30, 1970, list the following water uses for Pomme de Terre
Reservoir:
1. Propagation of warm water sport fish.
2. Wildlife watering.
3. Boating and canoeing.
4. Fishing.
5. Whole body water contact recreation.
6. Aesthetics value.
7. Receiving surface runoff.
The most important, from the standpoint of coliform bacteria, is whole
body water contact recreation, with its inherent requirement of waters
essentially free from public health hazards.
5
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III. SAMPLING AND ANALYTICAL PROGRAM
Survey Dates Selection
For the purpose of correlating fecal bacterial levels with recrea-
tional usage, it is desirable to reflect densities occurring during two
important conditions:
1. Pre-recreational usage thereby unaffected by public use area
waste discharges.
2. Heavy recreational usage thereby most affected by public use
area waste discharges.
The following survey periods were selected:
a. April 13-22, 1970
b. July 6-15, 1970
During the April 13-22, 1970 period, little or no usage was made of
recreational facilities in the public use areas. Any domestic wastes
which may have been generated in the toilet facilities at Damsite or
Hermitage were sent to septic tank systems. Coliform bacteria entering the
lake during this period were generated by (1) surface runoff around the lake,
(2) river inflows to the lake (Pomme de Terre River and Lindley Creek), and
(3) discharges from private residence septic tank drainage systems.
During the July 6-15, 1970 period, maximum usage of facilities was
being made. This period also reflected the influence of the 4th of July
weekend as well as the heavy use made during the following 10 days. It was
assumed that any dry weather increases in fecal coliform bacteria densities
would largely be attributable to the extended aeration plants which dis-
charged via submerged outfalls to the lake.
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Sewage effluent flow rates for this period were assumed to be closely
approximated by the water usage shown in Table II.
Sample Point Selection
Sampling points were selected to accomplish the following:
1. Isolate the Damsite-Hermitage area from influences of the
rest of the lake. Eighteen sampling points were selected
(Refer to Table III and Figure 2) in the area, including
two control stations on the Lindley Creek arm (PT 1 & 2) and
one on_the Pomme de Terre arm (PT-15).
2. Isolate the two treatment plant effluents. During Phase I
of the survey there was no discharge. During Phase II,
four sampling points were utilized for each of the two
sewage treatment plants including the effluent, points 300*
each direction along the shore from the discharge, and one
point within 10' of the submerged discharge. (Effluent from
the Damsite STP discharged to bottom of lake Elev. 828,
approx. 40' from shore of multi-purpose pool Elev. 839.
Hermitage STP discharged to bottom of Lake Elev. 828, approxi-
mately 80' from shore).
3. Reflect conditions at the most critical points (i.e., close
to shore) for full body contact recreation. This resulted in
the division of sampling points into "near shore" and "off
shore" stations. For the purposes of this survey, these are
defined as -
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Near Shore - Any water within 100' of the lake's
shoreline. Eleven of the stations fall into this
category, including the authorized beach (PT-3)
within the Federal Recreational Area and, for
comparative purposes, the State Park Beach (PT-16) .
Off Shore - Any water greater than 100' from shore.
Five stations were included in this category. The
remaining two stations included the Damsite and
Hermitage STP effluents. (Locations of all stations
are shown in Figure 2 and described in Table III.)
Sampling Procedure
Daily surface samples were collected by boat from the top 0.5' in
sterile 250 ml wide-mouth bottles. The following data were recorded
with each sample: station number, temperature (air and water), time,
and remarks, (e.g., general weather conditions or any seemingly unusual
sampling conditions). During the July 11-12 weekend of Phase II, the
number of bathers at each of the two beaches was also recorded.
Both depth and surface samples were collected on alternate days dur-
ing both phases at three locations (PT-3,7,8) to note any vertical dis-
tribution of coliform densities. These samples were collected with a
Kemmerer sampler at depths ranging from 5-10', depending upon water depth,
Initial plans called for rinsing the Kemmerer well with distilled water
before taking each depth sample; however, because of the low coliform
densities detected, this plan was abandoned and the Kemmerer was merely
flushed well with lake water before each sample was collected.
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Samples collected were delivered to the regional laboratory in
Kansas City (150 miles one way) daily. In order to accommodate the lab-
oratory's capability for handling 15 sets of samples, as well as cover
the 18 stations plus three depth samples adequately, certain nonessential
stations were used as swing stations and not sampled every day. In addi-
tion, the collection sequence was altered daily in order to vary the col-
lection times as much as possible.
Analytical Methods
General
The coliform group of bacteria has been used for many years as an
indicator of water pollution. Enumerating only the total coliform group
has led to inconclusive proof of fecal pollution in that organisms within
this group may originate in the soil as well as in the feces of warm-
blooded animals. A more specific quantitative test has been developed to
enumerate the "fecal coliform" bacteria, thereby eliminating the influence
of the nonfecal origin coliforms.— Whereas these fecal coliform bacteria
are not pathogens in themselves, they have been widely recognized as a
probably indicator of pathogens. All samples collected during the survey
were analyzed for both total and fecal coliform bacteria. A limited number
of fecal streptococci analyses was also performed.
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Analytical Procedures
Upon receipt at the laboratory, each sample was logged in and then
analyzed for total and fecal coliform bacteria by the membrane filter
method (MF). Total coliform determinations were conducted in accordance
with the 12th Edition, Standard Methods for the Examination of Water and
2/
Wastewater.~
A membrane filter procedure for fecal coliform bacteria is not yet
9 / 3/
included in Standard Methods;-7 however, Geldereich, et al- have described
a fecal coliform bacteria medium for use with the membrane filter. Further
studies by Geldereich— have established the comparability of this pro-
cedure with the new MPN fecal coliform bacteria test described in Standard
Methods.*
Fecal streptococci analyses were performed by the membrane filter
method as specified in Standard Methods.
* 13th Edition of Standard Methods has since been published and includes
membrane filter method for fecal coliform analysis.
I/ Geldereich, E. E. Sanitary Significance of Fecal Coliforms in the
Environment. Publication WP 20-3. U.S. Department of the Interior,
Federal Water Pollution Control Administration, November 1966.
2J Standard Methods for the Examination of Water and Wastewater. 12th
Edition APHA, AWWA & WPCF. 1965
_3_/ Geldereich, E. E. et al., "A Fecal Coliform Medium for the Membrane
Filter Technique" JAWWA 57:208 1965
10
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IV. DATA EVALUATION
Pre-Recreational Usage Phase I
Water quality, as reflected by total and fecal coliform bacteria
densities, was representative of high quality waters. Geometric mean total
and fecal coliform bacteria densities ranged from 5-26/100 ml and 1-3/100
ml respectively.
As could be expected, densities (Table V) increased somewhat during
periods of rainfall and resulting land runoff. At no time, however, even
during these storm runoff periods, did fecal coliform bacteria densities
reach the State Water Quality Standards criterion of 200/100 ml. which
applies during dry weather conditions.
Vertical distribution of organisms was also within the purview of the
sampling point selection. Considering the precision of the laboratory
techniques, the data in Tables IV and V indicate no statistically signi-
ficant vertical stratification.
Heavy Recreational Usage Phase II
Water quality, as reflected by total and fecal coliform bacteria
densities, was representative of continued high quality waters.
As was previously mentioned, sampling points were selected to not
only isolate the Damsite-Hermitage areas from the rest of the reservoir,
but also to reflect conditions at sensitive points, including the dis-
charge points and full body contact areas. Surface sampling stations 6A
and 11A were within 10' of the discharge points of the Hermitage and
Damsite STP, respectively. From the data in Table IV, geometric mean
11
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total coliform bacteria densities at these stations were 22/100 ml and
5/100 ml respectively with ranges of 14-32/100 ml and 4-8/100 ml. Mean
fecal coliform bacteria were 6/100 and 1/100 ml respectively with ranges
of 2-30/100 ml and <1-2/100 ml.
Results from Stations 7 and 8, and 10 and 12, located approximately
300' either side of the discharge points, reflected similar conditions
and did not expose any water quality problems. Surface and depth samples
collected at Station 7 and 8 again did not reflect a stratification of
organisms.
Again, as could be expected, densities (Table V) increased slightly
during periods of rainfall and resulting runoff (Refer to Table 5). At
no time did the rain-affected fecal coliform bacteria densities r^each the
State Water Quality Standards dry weather criterion of 200/100 ml.
Both beaches monitored during the survey exhibited continued high
quality water. PT-3 (Federal Swimming Beach) yielded geometric mean total
and fecal coliform bacteria densities of 4/100 ml and 1/100 ml respectively
with ranges of <1-18 and ^1-16. This included the July 11-12 weekend
condition when head counts of 165 and 200 bathers were taken. PT-16
(State Park Swimming Beach) yielded geometric mean total and fecal coliform
bacteria densities of 4/100 ml and 1/100 ml respectively with ranges of
2-10 and
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V. CONCLUSIONS AND RECOMMENDATIONS
Continued high quality water during the Heavy Recreational Usage
Phase II from the standpoint of bacterial densities at the most sensitive
stations (near the outfalls) as well as throughout the study area in
general, can best be attributed to two factors:
1. Dilution ratio of relatively small discharges (Daasite -
average .003 MGD, Hermitage - average .005 MGD) to large
water body.
2. Positive program initiated by Corps of Engineers personnel
to assure that package plants are checked at least once
daily by operator whose major responsibility during recrea-
tion months is to see that plants are maintained and operated
properly. To aid these ends, EPA personnel have provided
technical assistance in on-site training in control testing
and operating procedures.
Although data obtained during the Phase II survey period did not re-
flect any adverse conditions at sensitive locations in the lake, it would
be highly desirable if disinfection were provided at the Damsite and
Hermitage sewage treatment plants. On various occasions during the survey
campers were observed swimming in the immediate vicinity of the submerged
outfalls, pointing up the possibility, however remote, of transmittance
of water-borne diseases. The possibility of such a transmittance is greatest
on the weekends when the resulting heavy usage of area facilities creates
the greatest hydraulic load on the treatment plants. As shown in Table II,
13
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weekend daily flows at the Hermitage STP were sufficient to exceed its
5,000 gpd design capacity. Disinfection of the effluents would provide
an additional barrier of protection between the swimmer and any pathogen
laden wastes.
14
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APPENDIX
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TABLE I
CLIMATOLOGICAL DATA - POMME de TERRE LAKE AREA
Dace
4/13/70
4/14
4/15
4/16
4/17
4/18
4/19
4/20
4/21
4/22
7/6
7/7
7/8
7/9
7/10
7/11
7/12
7/13
7/14
7/15
Air Temp. Range
<°F)*
40 - 74
37 - 52
40 - 60
44-64
53 - 74
59 - 73
50 - 65
42 - 63
41 - 68
50 - 68
59 - 80
64 - 84
71 - 93
56 - 95
57 - 89
61 - 85
65 - 90
71 - 92
75 - 97
75 - 98
Wind Speed (MPH)
and
Direction During
Sampling Period
19 W
5 N
15 S
2 W
6 NE
12 S
13 SW
3 SE
2 S
13 SW
12 SW
13 SW
9 NE
4 NE
5 W
10 S
11 SW
7 SW
11 W
12 W
Precipitation (inches)**
Ponme de Terre Dam
.
-
-
.12
.21
Trace
1.94
-
.
-
_
-
-
-
-
-
.62
-
-
.04
Marshfield
.
-
-
.19
-
-
.78
.07
-
-
_
-
-
-
-
-
.16
-
-
-
Pleasant Hope
^
-
-
.07
.03
-
.70
-
-
-
_
-
-
-
-
-
.05
-
-
•
Fiend ngton
Trace
-
-
.16
.09
Trace
1.51
.02
-
-
_
-
-
-
-
-
2.90
-
-
-
Bolivar
_
-
-
-
-
-
-
-
-
-
_
-
-
-
-
-
.14
-
-
-
* Temperature values are from 8:00 a.m. of the previous day to 8:00 a.m. of the day listed (Source of Information U.S. Corps of Engineers).
** Refer to Figure 1 for locations. Rainfall data obtained from NOAA includes 6:00 a.m. of previous day to 6:00 a.m. of date listed.
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TABLE II
WATER
POMME de TERRE LAKE
Day
Hermitage STP Mon.
Tues.
Wed.
Thurs
Fri.
Sat.
Sun.
Mon.
Tues.
Wed.
Damsite STP Mon.
Tues.
Wed.
Thurs
Fri.
Sat.
Sun.
Mon.
Tues.
Wed.
* Values obtained by
Date
7/6/70
7/7/70
7/8/70
. 7/9/70
7/10/70
7/11/70
7/12/70
7/13/70
7/14/70
7/15/70
7/6/70
7/7/70
7/8/70
. 7/9/70
7/10/70
7/11/70
7/12/70
7/13/70
7/14/70
7/15/70
subtracting from
USAGE*
SEWAGE TREATMENT PLANTS
Time
9:15 A
7:15 A
7:05 A
6:50 A
7:20 A
7:00 A
6:55 A
8:05 A
7:00 A
6:50 A
7:40 A
7:00. A
7:20 A
7:10 A
7:35 A
7:10 A
7:20 A
8:15 A
7:15 A
7:15 A
successive
Meter
Reading
(gallons)
1,911,120
1,914,990
1,918,795
1,923,140
1,927,086
1,932,253
1,939,532
1,946,075
1,949,376
1,952,792
Av. Flow
3,456,330
3,458,200
3,460,720
3,463,410
3,466,150
3,469,840
3,475,360
3,479,480
3,481,950
3,484,480
Av. Flow
readings includes
Water
Usage
(gallons'
3,870
3,805
4,345
3,946
5,167
7,279
6,543
3,301
3,416
=• 4.630 GPD
1,870
2,520
2,690
2,740
3,690
5,520
4,120
2,470
2,530
- 3.128 GPD
water
provided for use by sinks, showers, and toilets.
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TABLE III
Station No. Station Description
(Off Shore jJtations)
PT - 1 ~" Midpoint ef Missouri Highway #64, bridge on Lindley
Creek arm of lake. Water depth 41 ft. Sampling
depth 0.5 ft.
PT - 2 Channel of Lindley Creek arm of lake approximately
150 yds. off point of land with n#2" marker on
tree. Water depth 68 ft. Sampling depth 0.5 ft.
PT - 5 Lake sample taken approx. halfway between PT - 4
and PT - 8. Water depth 55 ft. Sampling depth
0.5 ft.
PT - 13 Lake sample taken 50 ft. out from east side of very
small uninhabited island. Water depth 5.0 ft.
Sampling depth 0.5 ft.
\PT - 15 Channel of Pomme de Terre River arm of lake approx.
250 yds. out (SE) from point of land with "#20"
marker on tree. Water depth 60.0 ft. Sampling
depth 0.5 ft.
(Near_ShoŁe_Stations)
PX .""3 ~~ Lake sample at midpoint of cable which delineates
Federal swimming beach area. Water depth 10.0 ft.
Samples collected at 0.5 ft. and 5.0 ft.
PX - 4 Lake sample 50 feet from point of land. Water
depth 5.0 ft. Sampling depth 0.5 ft.
PT . 6A Lake sample approx. 70 ft. from shore and within
10 ft. of Hermitage STP outfall. Water depth 10.0
ft. Sampling depth 0.5 ft.
PT - 7 Lake sample 40 ft. out from fishing sign on tree,
and within 300 ft. of Hermitage STP outfall. Water
depth 15 ft. Samples collected at 0.5 ft. and
10.0 ft.
PT - 8 Lake sample 100 ft. from point of land and within
300 ft. of Hermitage STP outfall. Water depth 15
ft. Samples collected at 0.5 ft. and 10.0 ft.
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TABLE III (Cont.d)
Station Mo. Station Description
PT - 9 Lake sample 100 ft. from inlet to cove. Water
depth 10 ft. Sampling depth 0.5 ft.
PT - 10 Lake sample 40 ft. out from dead tree, and within
300 ft. of Damsite STF outfall. Water depth 6.0
ft. Sampling depth 0.5 ft.
FT - 11A Lake sample 40 ft. out from shore and within 10 ft.
of Damsite SIP outfall. Water depth 11 ft. Sampling
depth 0.5 ft.
PT - 12 Lake sample 40 ft. out from twin stump on shore and
within 300 ft. of Damsite STP outfall. Water depth
0.5 ft.
PT - 14 Lake sample 50 ft. out from dam inlet structure.
Water depth 90 ft. Sampling depth 0.5 ft.
PT - 16 Lake sample on Pomme de Terre arm at midpoint of
cable which delineates State Park swimming area.
Water depth 8 ft. Sampling depth 0.5 ft.
PT - 6 Hermitage Public Use Area sewage treatment plant
effluent.
PT - 11 Damsite Public Use Area sewage treatment plant
effluent.
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TABLE IV
SMMARY OF PCMME de TERSE LAKE BACTERIOLOGICAL DATA
Organ!SB Densities /10Q ml' (MF)
Station No.
PT-1
PT-2
PT-3 (Federal Swimming
Beach)
PT-3 (Depth)
PT-4
PT-5
PT-6 (Hermitage STP)
PT-6A
?T-7
'T-7 (Depth)
April 1970
Total Coli form
Mean: ^Values
Min.
Max.
11 : 10
2
64
5 : 10
30
9 : 10
2
63
6 : 4
30
6 : 7
81
10 : 10
95
Fecal Coli forms* Fecal Streptococci*
Mean: Mean
Miav Min.
Max. Max.
3
46
1 1
5 8
1
10
1
2
1
2
2 : 10
20
No Flow
Not Sampled
8 : 10
86
21 : 4
6
85
1
10
2
8
July 1970
Total
Mean
Min.
Max.
4
90
3
570
4
18
4
10
15
12
24
5
73A
3X10°
0.3X106
60X106
22
14
32
22
140
23
2
130
Coli forms
: #Values
: 10
: 10
: 10
: 5
: 5
: 4
: 10
: 4
: 10
: 5
Fecal Coli forms*
Mean:
Min.
Max.
1
3
1
2
1
16
1
'2
3
2
12
1
2
.916X10"
.05X10°
17X106
6
2
30
5
40
4
110
Fecal Streptococci*
Mean
Min.
Max.
1
4
-
-
-
-
2X10*
.37X106
45X106
-
-
-
• Note:
I Samples for Fecal Coliform and Fecal Streptococci Analyses same as # Total Coliform Analyses unless otherwise indicated.
- 1 -
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TABLE IV (Cont'd.)
SUMMARY OF POMME de TERRE LAKE BACTERIOlOGICAL DATA
Organism Densities /100 ml (MF)
itation No.
PT-8
PT-8 (Depth)
PT-9
PT-10
PT-11 (Damsite SIP)
PT-llA
PT-12
PT-13
PT-14
April 1970
Total Coliforms
Mean: #Values
Miru
Max.
10 : 10
<1
98
11 : 4
2
65
18 : 8
2
80
26 : 10
3
150
Fecal Coliforms* Fecal Streptococci*
Mean: Mean
Min. Min.
Max. Max.
1
<1
5
1
<1
6
2
<1
78
3
<1
37
No Flow
Not Sampled
10 : 10
<1
210
5 : 6
<1
48
9 : 8
2
210
1
<1
28
1
<1
10
2
<1
17
July 1970
Total Coliforms
Mean: ^Values
Min.
Max.
9 : 10
<1
340
8 : 4
<1
440
14 : 3
4
36
14 : 10
2
320
.229X106 : 10
.028X106
5.7X106
5 : 5
4
8
10 : 10
2
43
4 : 3
<1
15
3 : 7
<1
8
Fecal Coliforms* Fecal Streptococi
Mea n: Mean
Min. Min.
Max. Max.
1
<1
24
1
<1
6
1
<1
2
3
<1
75'
. 1X106 . 103X106
.015X106 .021X106
.58X106 1.6X106
1
<1
2
2
<1
12
1
<1
<1
1
<1
2
* Note: ^Samples for Fecal Coliform and Fecal Streptococci Analyses same as # Total Coliform Analyses unless other wise indicated.
2
-------
TABLE IV (Cont'd.)
SUMMARY OF POHME de TERM LAKE BACTERIOLOGICAL DATA
Organ!8m Densities/1QO cl (MF)
Station No.
PT-15
PT-16 (State Park
Swimming Beach)
April 1970
Total Coliforms
Mean: ^Values
Min.
Max.
8 : 9
1
59
22 : 5
6
71
Fecal Coliforms*
Mean:
Min.
Max.
1 : 10
<1
7
3
1
16
Fecal Streptococci*
Mean
Min.
Max.
2
<1
12
July 1970
Total Coliforms
Mean: #Values
Min.
Max.
5 : 10
<1
44
4 : 5
2
10
Fecal Coliforms*
Mean:
Min.
Max.
1
<1
6
1
<1
2
Fecal Streptococci*
Mean
Min.
Max.
<1
<1
<1
-
* Note: # Samples for Fecal Coliform and Fecal Streptococci Analyses same as # Total Coliform Analyses unless otherwise indicated.
-------
TABLE V
POMME de TERRE LAKE
TOTAL
COLIFORMS
/100
ml
APRIL 1970
M
Station No. 4/13
PT-1 20
PT-2 10
PT-3 10
PT-3 (Depth)
PT-4 <1
PT-5 <1
PT-6(Hermitage 33D-
PT-6A
PT-7 <1
PT-7(Depth)
PT-8 10
PT-8 (Depth)
PT-9 40
PT-10 90
T
14
7
30
8
.
10
6
_
-
6
_
9
-
6
9
W
15
2
2
4
<1
-
8
-
-
4
6
<1
2
5
3
Th
16
4
2
6
-
1
2
-
-
4
-
3
-
-
10
F
17
6
<1
3
3
5
3
-
-
3
8
3
2
-
4
S
18
2
2
2
-
3
2
-
-
<1
-
3
-
2
72
S
19
22
5
7
30
-
95
-
-
86
85
98
65
80
100
M
20
52
18
21
-
46
85
-
-
55
-
63
-
71
150
T
21
42
21
63
21
-
76
-
-
22
48
25
62
31
32
W
22
64
12
52
-
81
54
-
-
39
-
66
-
36
49
PT-ll(Damsite STP)- __„_----.
PT-11A - __„-_----
PT-12 <1
PT-13
PT-14 10
PT-15 20
PT-16
PT-1 <1
PT-2 <1
PT-3 <1
PT-3 (Depth)
PT-4 <1
PT-5 <1
15
<1
3
-
-
<1
<1
<1
-
<1
3
2
-
-
2
6
FECAL
2
<1
<1
<1
-
<1
5
2
10
5
-
COLIFORMS
<1
<1
<1
-
< 1
<1
2
-
3
4
7
/100
1
<1
<1
<1
<1
<1
1
<1
2
1
-
ml
<1
<1
<1
-
<1
<1
130
5
-
5
36
3
<1
1
2
-
20
210
39
210
59
59
42
5
10
-
2
5
52
-
16
20
-
16
5
5
2
-
6
28
48
12
51
71
46
2
2
-
<1
<1
PT-6 (Hermitage SIP - _.-__.__.
PT-6A - --..-....
PT-7 <1
PT-7(Depth)
PT-8 <1
PT-8 (Depth)
PT-9 <1
PT-10 <1
< 1
-
<1
-
<1
2
1
1
<1
<1
<1
< 1
<1
-
<1
-
-
2
< 1
<1
<1
<1
-
1
< 1
-
<1
-
<1
<1
4
8
4
6
78
28
10
-
4
-
4
37
6
4
2
2
<1
10
<1
-
5
-
5
2
PT-ll(Damsite STP)- -----_._-
PT-11A - ----.....
PT-12 <1
PT-13
PT-14 <1
PT-15 <1
PT-16
<1
<1
<1
<1
-
<1
-
-
<1
<1
1
<1
<1
<1
-
<1
-
<1
<1
1
<1
<1
<1
<1
-
25
2
_
<1
2
28
<1
17
2
8
<1
_
4
2
.
<1
10
5
7
16
Rain
-------
TABLE V
PQMME de TERRE LAKE
TOTAL COLIFORMS /100 ol
Station No.
PT-1
PT-2
PT-3
PT-3 (Depth)
PT-4
PT-5
PT-6*HermitaKe
PT-6A
PT-7
PT-7 (Depth)
PT-8
PT-8 (Depth)
PT-9
PT-10
PT-ll*Damsite
PT-11A
PT-12
PT-13
PT-14 \
PT-15
PT-16
PT-1
PT-2
PT-3
PT-3 (Depth)
PT-4
PT-5
PT-6*Hemitage
PT-6A
PT-7
PT-7 (Depth)
PT-8
PT-8 (Depth)
PT-9
PT-10
PT-ll*Damsite
PT-11A
PT-12
M
7/6
3
<1
6
5
-
73
STP 60
-
100
90
340
440
-
40
STP 5.7
-
43
15
8
4
-
<1
<1
<1
<1
-
<1
STP 1
-
<1
<1
<1
<1
-
<1
STP .4
-
<1
T
7
12
4
3
-
14
-
40
-
140
-
36
-
20
18
.62
-
8
-
2
14
2
2
<1
2
-
12
-
17
-
40
-
24
-
<1
14
.56
-
4
W
8
90
570
4
10
-
<1
5.4
-
36
40
4
8
-
10
.03
.
10
-
<1
<1
.
FECAL
3
<1
<1
2
-
<1
1.2
-
30
20
<1
6
-
<1
.015
-
<1
JULY
Th
9
10
6
4
-
24
-
0.3
18
34
-
<1
.
-
7
.09
4
2
-
6
5
8
1970
F
10
2
<1
9
4
-
3
1.2
-
19
8
4
2
-
2
.18
-
3
-
4
4
-
COLIFORMS /100
<1
<1
2
-
8
-
.05
2
12
-
<1
-
-
<1
.071
<1
<1
<1
<1
<1
<1
-
<1
.66
-
3
<1
<1
<1
-
<1
.035
-
<1
S
11
2
2
4
-
16
.
20
32
34
-
6
-
4
6
.19
8
28
<1
-
-------
10 20 MILES
I 1
SCALE 1:1,000,000
JEFFERSON
CITY
HARRY S, TRUMAN
DAM& RESERVOIR
LAKE OF
THE'OZARKS
POMME DE TERRE
LAKE
FLEMINGTON /
V
STOCKTON
LAKE
PLEASANT HOPE
MARSHFIELD
POMME DE TERRE LAKE
CLIMATOLOGICAL DATA STATIONS
Figure I
-------
POMME DE TfcRRE
RIVER
12
15.
13-
•6A
16
LINDLEY
CREEK
POMME DE TERRE
LAKE.
MISSOURI
SAMPLING STATIONS
POMME DE TERRE LAKE
BACTERIOLOGICAL STUDY
Figure 2
POMME DE TERRE
RIVER
------- |