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

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                                                                   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.

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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

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                                        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
-

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                   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

-------