U.S. ENVIRONMENTAL PROTECTION AGENCY
               NATIONAL EUTROPHICATION SURVEY
                        WORKING PAPER SERIES

                                              REPORT
                                                ON
                                          CANYON RESERVOIR
                                            COWL COUNTY
                                              TEXAS
                                            EPA REGION VI
                                         WORKING PAPER No, 639

     CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                                 and
    ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•&G.P.O. 699-440

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                             REPORT
                               ON
                        CANYON RESERVOIR
                          COM. COUNTY
                             TEXAS
                          EPA REGION VI
                      WORKING PAPER No, 639
WITH THE COOPERATION OF THE
 TEXAS WATER QUALITY BOARD
          AND THE
    TEXAS NATIONAL GUARD
         FIARCH,  1977

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                               CONTENTS



                                                          Page



  Foreward                                                   ii



  List of Texas Study Reservoirs                              iv



  Lake and Drainage Area Map                                 vi








  Sections



  I.  Conclusions                                             1



 II.  Lake and Drainage Basin Characteristics                  4



III.  Lake Water Quality Summary                               5



 IV.  Nutrient Loadings                                      11



  V.  Literature Reviewed                                    15



 VI.  Appendices                                             16

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                                 11
                          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)j, water
quality criteria/standards review [§303(c)], clean lakes [§314(a,b)],
and water quality monitoring [§106 and §305(b)j activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.

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     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
fresh water 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.

ACKNOWLEDGEMENT

     The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental  Protection Agency)
expresses sincere appreciation to the Texas  Water Quality Board
for professional involvement, to the Texas National Guard for
conducting the tributary sampling phase of the Survey, and to
those Texas wastewater treatment plant operators who voluntarily
provided effluent samples.

     Hugh C.  Yantis, Jr., Executive Director of the Texas Water
Quality Board, and John B. Latchford, Jr., Director, and the staff
of the Field Operations Division provided invaluable lake documen-
tation and counsel during the Survey, reviewed the preliminary
reports, and provided critiques most useful  in the preparation of
this Working Paper series.

     Major General Thomas Bishop, the Adjutant General of Texas,
and Project Officer Colonel William L. Seals, who directed the
volunteer efforts of the Texas National Guardsmen,  are also grate-
fully acknowledged for their assistance to the Survey.

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                                 1v
                  NATIONAL EUTROPHICATION SURVEY
                         STUDY RESERVOIRS
                          State of Texas
NAME
Amistad
Bastrop
Bel ton
Braunig
Brownwood
Buchanan
Caddo
              *
Calaveras
Canyon
Colorado City
Corpus Christi

Diversion
Eagle Mountain
Fort Phantom Hill
Houston
Kemp
Lake O'The Pines

Lavon
Lewisville (Garza-Little Elm)
Livingston
COUNTY
Val Verde
Bastrop
Bell, Coryell
Bexar
Brown
Burnet, Llano
Harrison, Marion, TX;
Caddo Parish, LA
Bexar
Comal
Mitchell
Jim Wells, Live Oak, San
Patricio
Archer, Baylor
Tarrant, Wise
Jones
Harris
Baylor
Camp, Marion, Morris,
Upshur
Coll in
Denton
Polk, San Jacinto, Trinity,
Walker

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Lyndon B. Johnson

Medi na

Meredith


0. C. Fisher (San Angelo)

Palestine


Possum Kingdom


Sam Rayburn



Somerville

E. V. Spence

Stamford

Still house Hollow

Tawakoni

Texoma


Travis

Trinidad

Twin Buttes

White River

Whitney

Wright Patman (Texarkana)
Burnet, Llano

Bandera, Medina

Hutchinson, Moore,
Potter

Tom Green

Anderson, Cherokee,
Henderson, Smith

Palo Pinto, Stephens,
Young

Angelina, Jasper
Nacogdoches, Sabine, San
Augustine

Burleson, Lee, Washington

Coke

Haskell

Bell

Hunt, Rains, Van Zandt

Cooke, Grayson TX; Bryan,
Johnston, Love, Marshall, OK

Burnet, Travis

Henderson

Tom Green

Crosby

Bosque, Hill

Bowie, Cass

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VTexa
Map Location
CANYON RESERVOIR
 & Tributary Sampling  Site
 X Lake Sanplinq  Site
 ~~^ Drainage Area  Boundary
 0         to        20 "*•<"
 |_	|	    I
 0       5      TO     !
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                             CANYON RESERVOIR
                              STORE! NO. 4809

I.  CONCLUSIONS
    A.  Trophic Condition:
            Survey data indicate that Canyon Reservoir is mesotrophic;
        i.e., moderately supplied with nutrients and productive.  Whether
        nutrient enrichment is beneficial or deleterious depends on the
        actual or potential effect on the uses of the reservoir.  In this
        regard, no nuisance conditions are known to personnel  of the texas
        Water Quality Board and there is little or no impairment of the
        designated beneficial  uses of this water body.
            Canyon Reservoir ranked first in overall trophic quality when
        39 Texas reservoirs sampled in 1974 were compared using a combi-
        nation of six parameters*.  None of the other reservoirs had less
        but one had the same median total phosphorus, one had less median
        dissolved phosphorus,  35 had less median inorganic nitrogen, one
        had less mean chlorophyll a_, and two had greater mean Secchi disc
        transparency.
            Depression of hypolimnetic dissolved oxygen occurred at all
        stations in May and August, and depression with depth occurred at
        stations 1 and 2 in November.
    B.  Rate-Limiting Nutrient:
            The algal assay results indicate that the primary productivity
        in Canyon Reservoir was phosphorus limited at the times the samples
* See Appendix A.

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    were collected (03/13/74 and 11/05/74).   The reservoir data  indi-
    cate phosphorus limitation at all  sampling times.
C.  Nutrient Controllability:
        1.  Point sources—During the sampling year,  septic tanks
    serving shoreline dwellings were estimated to have contributed
    0.4% of the total phosphorus load to Canyon Reservoir,  but a
    shoreline survey would be needed to determine the significance
    of these sources.  In addition, the Randolph Air  Force Base
    Marina wastewater treatment facility discharges directly to  the
    reservoir; however, no effluent quality data are  available (Wyatt,
    1976), and the phosphorus contribution of this source is not known.
        The phosphorus loading of 0.15 g/m2  measured  during the  sampling
    year is less than that proposed by Vollenweider (Vollenweider and
    Dillon, 1974) as an oligotrophic loading (see page 14); however,
    the actual loading was higher to some degree because of the
    Randolph AFB Marina contribution.   The existing reservoir water
    quality should persist if phosphorus inputs are kept at or below
    the proposed oligotrophic loading.
        2.  Non-point sources—The phosphorus contributions of non-
    point sources accounted for 99.6% of the total phosphorus load
    during the sampling year.  The Guadalupe River contributed 77.3%,
    and Rebecca Creek contributed 1.0% of the total.   Ungaged drainage
    areas were estimated to have contributed 9.9% of  the total load to
    Canyon Reservoir.

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    The phosphorus export rates of the Guadalupe River and Rebecca
Creek were very low (see page 13) and compare very well  with the
export rates of unimpacted streams elsewhere in Texas.

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II.   RESERVOIR AND DRAINAGE BASIN CHARACTERISTICS1"

     A.   Morphometry  :

         1.   Surface area:   33.35 kilometers2.

         2.   Mean depth:   14.0 meters.

         3.   Maximum depth:   >39.0 meters.

         4.   Volume:   471.198 x 106  m3.

         5.   Mean hydraulic retention  time:   1 year  (based on 1972-1976
             mean outflow).

     B.   Tributary and Outlet:
         (See Appendix C  for flow data)

         1.   Tributaries  -

                                              Drainage       Mean flow
             Name                             area  (km2)*    (m3/sec)*

             Guadalupe River                     3,405.8         7.560
             Rebecca  Creek                           28.2         0.146
             Minor tributaries &
              immediate drainage -                  251.8         1.050

                            Totals               3,685.8         8.756

         2.   Outlet -

             Guadalupe River                     3,719.2**       7.910

     C.   Precipitation***:

         1.   Year of sampling:   85.6 centimeters.

         2.   Mean annual:   80.0 centimeters.
 t Table of metric  conversions—Appendix B.
 tt At conservation pool  level;  Barrows, 1977.
 * For limits  of accuracy,  see Working  Paper No. 175,  "...Survey Methods,
   1973-1976".
 ** Includes area of reservoir.
 *** See Working Paper  No.  175.

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III.   WATER QUALITY  SUMMARY
      Canyon Reservoir was sampled four times  during  1974  by means of a
  pontoon-equippped  Huey helicopter.   Each  time,  samples for physical and
  chemical  parameters  were collected  from four stations on the  reservoir
  and from a number  of depths  at each station  (see  map, page vi).  During
  each visit,  a  single depth-integrated (4.6 m to surface)  sample was
  composited from the  stations for phytoplankton  identification and  enum-
  eration;  and during  the March and November visits,  single 18.9-liter
  depth-integrated samples were 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  39.0  meters
  at  station 1,  30.2 meters at station 2, 22.6 meters at station 3,  and
  15.5 meters  at station 4.
      The  sampling results are presented in full  in Appendix D  and are
  summarized in  the  following  table (the August nutrient samples were not
  preserved properly and were  not analyzed).

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PARAMETER
TEMP (C)
DISS OXY (MG/L)
CNDCTVY  (MCROMO)
PH (STAND UNITS)
TOT ALK  (MG/D
TOT P (MG/L)
ORTHO P  (MG/L)
N02*N03  (MG/D
AMMONIA  (MG/L)
KJEL N  (MG/L)
INORG N  (MG/L)
TOTAL N  (MG/L)
CHLR^YL  A (UG/D
SECCHI  (METERS)
                             A. SUMMARY OF PHYSICAL  AND
                             1ST SAMPLING  ( 3/13/74)
                                   4 SITES
     RANGE
 12.0  -  20.0
  5.0  -   9.6
 320.  -  430.
  7.8  -   8.3
 178.  -  232.
0.005  - 0.014
0.004  - 0.011
0.390  - 0.890
0.020  - 0.150
0.200  - 0.500
0.410  - 1.020
0.590  - 1.220
  0.8  -   1.2
  1.5  -   4.3
                                  CHEMICAL CHARACTEKlSTICS FOK CANYON RESERVOIR
                                   STOWET CODE <+809
                                             2ND SAMPLING.( 5/22/74)
                                                   4 SITES
3RD SAMPLING (  8/15/74)
      4 SITES
MEAN
16.0
8.0
367.
8.2
198.
0.008
0.007
0.538
0.042
0.250
0.581
0.788
1.0
2.8
MEDIAN
16.0
8.1
360.
8.2
192.
0.007
0.005
0.440
0.035
0.200
0.465
0.72.5
1.0
2.7
KANGE
13.4
1.0
342.
7.1
155.
0.006
0.002
0.400
0.020
0.200
0.430
0.600
3.5
1.4
- 28.2
8.0
- 512.
8.3
- 203.
- 0.053
- 0.011
- 0.970
- 0.060
- 0.800
- 1.030
- 1.280
7.9
2.6
MEAN
22.9
4.8
399.
7.7
176.
0.013
0.004
0.520
0.037
0.257
0.557
0.777
5.7
2.1
MEDIAN
25.1
5.4
395.
7.7
174.
0.009
0.003
0.470
0.040
0.200
0.500
0.720
5.7
2.2
KANGE MEAN MEDIAN
15.6 - 28.2 24.6 27.0
0.2 - 7.6 4.6 6.4
355. - 497. 399. 391.
7.2 - 8.5 8.0 8.0
«««»»<> - o tutinnxxnnnto «»»o « o « e o o
»»»»»« - « (too o « (nnKHKHn»oo iotnto
1.0 - 3.0 1.9 1.6
2.3 - 5.5 3.8 3.7

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A. SUMMARY OF PHYSICAL
                                                        CHEMICAL CHARACTERISTICS  FOK  CANYON RESERVOIR
                                                          ST03ET CODE  4809
PARAMETER


TEMP 1C)


DISS OXY (MG/L)


CNDCTVY (MCROMO)


PH (STAND UNITS)


TOT ALK (MG/L)


TOT P (MG/L)


ORTHO P (MG/L)


N02+N03 (MG/L)


AMMONIA (MG/L)


KJEL N  (MG/L)


INORG N (MG/L)


TOTAL N (MG/L)


CHLRPYL A  (UG/D


SECCHI  (METERS)
4TH SAMPLING
                                                5/74)
4 SITES
RANGE MEAN
20.4
0.6
282.
7.2
144.
0.006
0.005
0.130
0.020
0.200
0.250
0.430
0.9
1.2
r 21.4
8.0
- 422.
8.0
- 201.
- 0.045
- 0.015
- 0.480
- 0.460
- 0.400
- 0.750
- 0.7BO
2.2
4.6
21.1
6.5
346.
7.8
167.
0.020
0.009
0.273
0.053
0.264
0.32ft
0,537
1.4
3.0
MEDIAN
21.2
7.0
343.
7.9
165.
0.020
0.009
0.250
0.030
0.200
0.280
0.530
1.2
3.2

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                                 8
B.   Biological characteristics:

    1.   Phytoplankton -
        Sampli ng
        Date

        03/13/74
        05/22/74
        08/15/74
        11/05/74
Dominant
Genera

1.   Chroomonas sp.
2.   Synedra sp.
3.   Mallomonas sp.
4.   Nitzschia sp.
    Other genera

            Total

1.   Chroomonas sp.
2.   Coelastrum sp.
3.   Cryptomonas sp.
4.   Cyclotella sp_.
5.   Dinobryon sp.
    Other genera

            Total

1.   Cryptomonas sp.
2.   Microcystis sp.
3.   Chroomonas sp.
4.   Tetraedron sp.
5.   Navicula sp.
    Other genera

            Total

1.   Chroomonas sp.
2.   Cryptomonas sp.
3.   Dinobryon sp.
4.   Synedra sp.
5.   Chlamydomonas sp.
    Other genera
Algal Units
per ml	

      217
       29
       14
       14
        1

      275

      494
      198
       99
       99
       49
      148
    1,087

      345
      276
      242
      104
       69
      310

    1,346

      686
      172
      103
      103
       69
      102
                                          Total
                               1,235

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    2.  Chlorophyll
        Sampling
        Date

        03/13/74
        05/22/74
        08/15/74
        11/05/74
     Station
     Number

       1
       2
       3
       4

       1
       2
       3
       4

       1
       2
       3
       4

       1
       2
       3
       4
C.   Limiting Nutrient Study:

    1.  Autoclaved,  filtered,  and nutrient spiked  -

        a.  March sample -
        Spike (mg/1)

        Control
        0.050 P
        0.050 P  + 1.0 N
        1.0 N
Ortho P
Cone. (mg/TJ

   <0.005
   <0.055
   <0.055
   <0.005
        b.   November sample -
        Spike (mg/1)

        Control
        0.050 P
        0.050 P  + 1.0 N
        1.0 N
Ortho P
Cone, (mg/1)

   0.004
   0.054
   0.054
   0.004
Inorganic N
Cone, (mg/1)

    0.610
    0.610
    1.610
    1.610
Inorganic N
Cone,  (mg/1)

    0.267
    0.267
    1.267
    1.267
               Chlorophyll  a
               (ug/D

                   1.1
                   0.8
                   0.9
                   1.2

                   4.4
                   3.5
                   7.9
                   7.0

                   2.7
                   3.0

                   2.2
                   0.9
                   1.1
                   1.3
Maximum yield
(mg/1-dry wt.)

     0.1
     7.0
     6.4
     0.1
Maximum yield
(mg/1-dry wt.)

     0.1
     6.6
    16.4
     0.1

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                            10
2.  Discussion -
        The control  yields of the assay alga,  Selenastrum  capri-
    cornutum, indicate that the potential  primary productivity
    of Canyon Reservoir was low in March and  November,  1974.
    Also, the significant increase in yields  with the addition
    of orthophosphorus and the lack of change in  yields when
    only nitrogen was added indicate phosphorus limitation.
        The reservoir data also indicate phosphorus limitation;
    i.e., the mean inorganic nitrogen/orthophosphorus ratios
    were 36/1 or greater at all sampling times, and phosphorus
    limitation would be expected.

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                                     11
IV.   NUTRIENT LOADINGS
     (See Appendix E for data)
     For the determination  of nutrient loadings,  the  Texas  National
 Guard collected  monthly near-surface  grab  samples  from each  of  the
 tributary sites  indicated  on the  map  (page vi),  except for the
 months of April  and 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 Texas District Office  of the  U.S. Geological Survey for  the
 tributary sites  nearest the reservoir.
     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" ("II" of  U.S.G.S.) were
 estimated using  the nutrient loads, in kg/km2/year,  at station  B-l and
 multiplying by  the II area in  km2.
     No known municipal  or  industrial  waste sources impacted  Canyon Reser-
 voir during the  sampling year;  however, the treatment  facility  serving
 the Randolph Air Force  Base Marina discharged  an unknown amount of phos-
 phorus directly  to the  reservoir.
 * See  Working  Paper  No.  175.

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    A.  Waste Sources:
        1.  Known municipal - None
        2.  Known industrial - None
    B.  Annual Total Phosphorus Loading - Average Year:
        1.  Inputs -
                                              kg P/          % of
            Source                            yr             total
            a.  Tributaries (non-point load) -
                Guadalupe River               3,960           77.3
                Rebecca Creek                    50            1.0
            b.  Minor tributaries & immediate
                 drainage (non-point load) -    505            9.9
            c.  Known municipal STP's - None
            d.  Septic tanks* -                  20            0.4
            e.  Known industrial - None
            f.  Direct precipitation** -        585           11.4
                        Total                 5,120          100.0
        2.  Outputs -
            Lake outlet - Guadalupe River     3,105
        3.  Net annual P accumulation - 2,015 kg.
* Estimate based on 65 lakeshore dwellings and two parks;  see Working Paper
  No. 175.
** See Working Paper No. 175.

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                                    13
    C.  Annual Total Nitrogen Loading - Average Year:
        1.  Inputs -
                                              kg N/          % of
            Source                            yr             total
            a.  Tributaries (non-point load) -
                Guadalupe River               433,250         88.3
                Rebecca Creek                   2,090          0.4
            b.  Minor tributaries & immediate
                 drainage (non-point load) -   18,635          3.8
            c.  Known municipal STP's - None
            d.  Septic tanks* -                   835          0.2
            e.  Known industrial - None
            f.  Direct precipitation** -       36,005          7.3
                        Total                  490,815        100.0
        2.  Outputs -
            Lake outlet - Guadalupe River     174,140
        3.  Net annual N accumulation - 316,675 kg.
    D.  Non-point Nutrient Export by Subdrainage Area:
        Tributary                             kg P/km2/yr    kg N/km2/yr
        Guadalupe River                           1              127
        Rebecca Creek                             2               74
* Estimate based on 65 lakeshore dwellings and two parks;  see Working Paper
  No. 175.
** See Working Paper No. 175.

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                                14
E.   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-
                                                     i
    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              0.15      0.06        14.7       9.5
    Vollenweider phosphorus  loadings
     (g/m2/yr)  based on mean depth  and  mean
     hydraulic  retention time of Canyon Reservoir:
        "Dangerous"   (eutrophic loading)            0.72
        "Permissible"  (oligotrophic  loading)       0.36

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                                    15
V.  LITERATURE REVIEWED

    Barrows,  David,  1977.   Personal  communication (reservoir morphometry
        and hydraulic retention time).   Canyon Proj.  Off.,  Fort Worth
        Dist., Corps of Engrs., New Braunfels, TX.

    Vollenweider,  R. A.,  and P. J.  Dillon, 1974.   The application of the
        phosphorus loading concept to eutrophication research.   Nat!. Res.
        Council  of Canada  Publ. No.  13690, Canada Centre for Inland Waters,
        Burlington,  Ontario.

    Wyatt, Linda B., 1976.  Personal  communication (review of preliminary
        report)  TX Water Qual.  Bd.,  Austin.

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                                16
VI.   APPENDICES
                                  APPENDIX A
                                 LAKE RANKINGS

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LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE  LAKE NAME
4601  AMISTAO LAKE
4802  BASTROP LAKE
4803  BELTON RESERVOIR
4804  BKAUNIG LAKE
4805  BROWNWOOD LAKE
4806  LAKE BUCHANAN
4807  CADOO LAKE
4808  CALAVERAS LAKE
4809  CANYON RESERVOIR
4810  LAKE COLORADO CITY
4811  CORPUS CRISTI LAKE
4812  DIVERSION LAKE
4813  EAGLE MOUNTAIN LAKE
4814  FT PHANTOM HILL LAKE
4815  GARZA LITTLE ELM RESERVO
4816  KEMP LAKE
4817  HOUSTON LAKE
4818  LAKE OF THE PINES
4819  LAVON RESERVOIR
4820  LIVINGSTON LAKE
4821  LYNDON 8 JOHNSON LAKE
4822  MEDINA LAKE
4823  LAKE MEREDITH
4824  PALESTINE LAKE
4825  POSSUM KINGDOM RESERVOIR
4826  SAN ANGELO RESERVOIR
4827  SAM RAYBURN RESERVOIR
4828  E V SPENCE RESERVOIR
MEDIAN
TOTAL P
0.013
0.02?
0.016
0.134
0.027
0.036
0.055
0.038
0.010
0.042
0.113
0.025
0.024
0.060
0.045
0.023
0.097
0.031
0.063
0.196
0.042
0.010
0.021
0.031
0.023
0.098
0.029
0.036
MEDIAN
INOWG N
0.500
0.090
0.185
0.150
0.100
0.250
0.070
0.060
0.450
0.090
0.130
0.080
0.070
0.105
0.380
0.110
0.260
0.090
0.180
0.555
0.420
0.600
0.070
0.180
0.070
0.140
0.150
0.080
500-
MEAN SEC
371.474
419.917
378.312
461.625
470.375
437.625
463.333
461.667
384.812
473.625
475.187
470.111
469.625
474.909
475.782
455.000
486.187
440.000
485.333
465.469
456.500
403.562
439.312
442.625
419.045
481.000
439.458
462.583
MEAN
CHLOftA
2.C .2
12.392
8.025
22.762
4.887
8.606
14.808
22.500
2.500
12.675
19.756
15.867
5.662
6.317
14.156
10.217
16.650
12.919
5.400
16.112
8.100
12.944
3.037
10.619
9.495
24.675
6.267
11.775
15-
MIN DO
14.900
15.000
IS. 000
14.800
14.400
15.000
11.400
13.000
14.800
10.200
14.000
9.000
11.000
9.800
14.600
10.400
12.400
15.000
8.800
15.000
14.900
15.000
14.900
14.800
15.000
10.200
15.000
1.5.000
MEDIAN
DISS OUTHO P
0.009
0.007
0.007
0.062
0.007
0.012
0.013
0.007
0.006
0.012
0.050
0.009
0.008
0.022
0.018
0.007
0.036
0.011
0.018
0.128
0.013
0.004
0.009
0.010
0.009
0.011
0.009
0.008

-------
LAKE DATA TO BE USED IN RANKINGS

LAKE
CODE  LAKE NAME

4829  SOMERVILLE LAKE

<»830  STAMFORD LAKE

4631  STILLHOUSE HOLLOW RESEKV

4832  TAWAKONI LAKE

4833  TEXARKANA LAKE

4834  TEXOMA LAKE

4835  TRAVIS LAKE

4836  TRINIDAD

4837  TWIN BUTTES RESERVOIR

4838  WHITE RIVER RESERVOIR

4839  WHITNEY LAKE
MEDIAN
TOTAL P
0.053
0.073
O.Old
0.04b
0.106
0.042
0.018
0.389
0.029
0.020
0.028
MEDIAN
INORG N
0.115
O.C60
0.160
0.100
0.120
0.160
0.250
0.110
0.250
0.110
0.120
500-
MEAN SEC
473.833
482.714
406.250
46b.4l7
476.500
451.321
389.913
479.500
454.917
434.500
430.500
MEAN
CHLORA
24. 4 -Jl
18.457
3.917
18.246
19.119
12.493
5.595
24.300
8.708
4.333
6.912
Ib-
MIN 00
13.000
10.600
15.000
13.200
12.400
15.000
15.000
10.000
14.800
15.000
15.000
MEOUN
OISS OrtTnO fi
0.01 3
0.012
0.010
0.013
0.030
0.018
0.007
0.240
0.009
0.009
0.008

-------
OF LAKES ai
LAKE
CODE  LAKE NAME
                          UP; VALUES {NUMBER OF LAKES WITH HTGHEW VALUES*
<«801  AMISTAD LAKE
4802  6ASTROP LAKE
4803  8ELTON RESERVOIR
4804  BRAUNIG LAKE
4805  BROrtNWOOD LAKE
4806  LAKE BUCHANAN
4807  CADOO LAKE
4808  CALAVERAS LAKE
4809  CANYON RESERVOIR
4810  LAKE COLORADO CITY
4811  CORPUS CRISTI LAKE
4813  DIVERSION LAKE
4813  EAGLE MOUNTAIN LAKE
4814  FT PHANTOM HILL LAKE
4815  GARZA LITTLE ELM RESERVO
4816  KEMP LAKE
4817  HOUSTON LAKE
4818  LAKE OF THE PINES
4819  LAVON RESERVOIR
4830  LIVINGSTON LAKE
4821  LYNDON B JOHNSON LAKE
4832  MEDINA LAKE
4823  LAKE MEREDITH
4824  PALESTINE LAKE
4825  POSSUM KINGDOM RESERVOIR
«»826  SAN ANOELO RESERVOIR
4827  SAM RAYBURN RESERVOIR
4828  E V SPENCE RESERVOIR
MEDIAN
TOTAL P
95
79
92
5
66
47
26
45
99
39
8
68
71
24
34
76
16
54
21
3
39
99
82
54
74
13
59
50
( 36)
( 30)
< 35)
( 2)
( 25)
< 18)
( 10)
( 17)
( 37)
( 14)
( 3)
< 26)
( 27)
( 9)
( 13)
< 29)
( 6)
( 20)
( 8)
( D
( 14)
( 37)
( 3D
< 20)
( 28)
( 5)
( 22)
( 19)
MEDIAN
5
76
26
42
70
21
91
100
8
76
47
83
91
66
13
61
16
76
29
3
11
0
91
32
91
45
39
83
( 2)
( 28)
( 10)
< 16)
( 26)
( 7)
( 33)
I 38)
( 3)
( 28)
( 18)
( 3D
( 33)
( 25)
( 5)
( 22)
( 6)
( 28)
( ID
< D
( 4)
( 0)
( 33)
( 12)
( 33)
( 17)
< 15)
( 3D
500-
MEAN SEC
100 (
82 (
97 (
50 (
29 (
74 (
42 (
47 (
95 (
26 (
18 (
32 (
34 (
21 (
16 (
55 (
0 (
66 (
3 <
39 (
53 (
89 (
71 (
63 (
84 (
8 (
68 (
45 (
38)
3D
37)
19)
ID
28)
16)
18)
36)
10)
7)
12)
13)
8)
6)
21)
0)
25)
D
15)
20)
34)
27)
24)
32)
3)
26)
17)
MEAN
100
47
68
8
87
63
32
11
97
42
13
29
79
74
34
55
24
39
84
26
66
37
95
53
58
0
76
50
( 38)
( 18)
( 26)
( 3)
( 33)
( 24)
( 12)
( 4)
( 37)
( 16)
( 5)
( ID
( 30)
( 28)
( 13)
< 2D
( 9)
( 15)
( 32)
( 10)
( 25)
( 14)
( 36)
( 20)
'( 22)
( 0)
( 29)
( 19)
15-
MIN 00
39 1
17 I
17 1
49 (
58 1
17 (
76 1
67 (
49 (
88 I
61 (
97 (
79 1
95 1
55 1
84 1
72 (
17 i
100 i
17 i
39 i
17 i
39
49
17
88
17
17
; 14)
1 0)
i 0)
! 17)
; 22)
: o>
; 29)
: 25)
; 17)
: 33)
; 23)
; 37»
; 30)
i 36)
I 21)
I 32)
I 27)
1 0>
1 38)
1 0)
1 14)
( 0)
( 14)
( 17)
( 0)
( 33)
( 0)
( 0)
MEDIAN
DISS OKTHO P
63
92
84
5
84
39
30
92
97
39
8
63
76
16
21
92
11
46
21
3
30
100
63
51
63
46
63
76
< 21)
( 34)
( 3D
( 2)
( 3D
( 14)
( 10)
( 34)
( 37)
( 14)
( 3)
( 21)
( 28)
( 6)
( 7)
( 34)
( 4)
< 17)
( 7)
( D
< 10)
( 3d)
( 21)
< 19)
( 2D
( 17)
( 21)
( 28)
INDEX
NO
40
-------
PERCENT OF CAKES WITH HIGHER VALUES (NUMBER or LAKES *ITH HIGHER VALUES)

LAKE
CODE  LAKE NAME

4829  SOMERVILLE LAKE

4830  STAMFORD LAKE

4831  STILLHOUSE HOLLOW

4832  TAWAKONI LAKE

4833  TEXAWKANA LAKE

4834  TEXOMA LAKE

4635  TRAVIS LAKE

4836  THINIDAD

4837  TWIN bUTTES RESERVOIR

4838  WHITE RIVER RESERVOIR

4839  WHITNEY LAKE
MEDIAN
TOTAL P
29
18
88
32
11
39
88
0
59
84
63
( 11)
( 7)
( 33)
( 12)
( 4)
( 14)
( 33)
< 0)
( 22)
( 32)
( 24)
MEDIAN
INOSG N
55
97
37
70
51
34
21
61
21
61
51
( 211
( 37)
( 14)
( 26)
( 19)
( 13)
( 7)
( 22)
( 7)
( 22)
( 19)
500-
MEAN SEC
24
5
87
37
13
61
92
11
58
76
79
( 9)
( 2)
( 33)
( 14)
< 5)
< 23)
( 35>
( 4)
( 22)
( 29)
< 30)
MEAN
CHLORA
3
18
92
21
16
45
82
5
61
89
71
1 1)
( 7)
( 35)
( 8)
( 6)
( 17)
( 3D
( 2)
( 23)
( 34)
( 27)
15-
MIN 00
67
82
17
63
72
17
17
92
49
17
17
( 25)
( 3D
( 0)
( 24)
( 27)
( 0)
( 0)
( 35)
( 17)
( 0)
( 0)
MEDIAN
DISS Uh>THO H
30
39
51
30
13
21
84
0
63
63
76
( 10)
( 14)
( 19)
( 10)
( 5)
( 7)
( 31)
( 0)
( 21)
( 21)
( 28)
INDEX
NO
208
259
372
253
176
217
384
169
311
390
357

-------
   LS RANKED BY INDEX NOS.
RANK  LAKE CODE  LAKE NAME
                                       INDEX  NO
 i  4809       CANYON RESERVOIR           445
 2  4823       LAKE MEREDITH              441
 3  4813       EAGLE MOUNTAIN LAKE        430
 4  4816       KEMP LAKE                  423
 5  4801       AMISTAO LAKE               402
 6  4805       BROrfNWOOD LAKE             394
 7  4802       BASTROP LAKE               393
 8  4838       WHITE RIVER RESERVOIR      390
 9  4825       POSSUM KINGDOM RESERVOIR   387
10  4835       TRAVIS LAKE                384
11  4803       BELTON RESERVOIR           384
12  4831       STILLHOUSE HOLLOW RESERV   372
13  4812       DIVERSION LAKE             372
14  4808       CALAVERAS LAKE             362
15  4839       WHITNEY LAKE               357
16  4822       MEDINA LAKE                342
17  4827       SAM RAYBURN RESERVOIR      322
18  4828       E V SPENCE RESERVOIR       321
19  4837       TWIN 8UTTES RESERVOIR      311
20  4810       LAKE COLORADO CITY         310
21  4824       PALESTINE LAKE             302
22  4818       LAKE OF THE PINES          298
23  4807       CADDO LAKE                 297
24  4814       FT PHANTOM HILL LAKE       296
25  4806       LAKE BUCHANAN              261
26  4830       STAMFORD LAKE              259
27  4819       LAVON RESERVOIR            258
28  4832       TAWAKONI LAKE              253

-------
LAKES RANKED BY INDEX NOS.
RANK  LAKE CODE  LAKE NAME               INDEX NO
  29  4821       LYNDON B JOHNSON LAKE      238
  30  4834       TEXOMA LAKE                217
  31  4829       SOMERVILLE LAKE            208
  32  4826       SAN ANGELO HESERVOIR       200
  33  4833       TEXAKKANA LAKE             176
  34  4815       GARZA LITTLE ELM RESERVO   173
  35  4836       TRINIDAD                   169
  36  4B04       BRAUNIG LAKE               159
  37  4811       CORPUS CRISTI LAKE         155
  38  4817       HOUSTON LAKE               139
  39  4820       LIVINGSTON LAKE             91

-------
    APPENDIX B





CONVERSION FACTORS

-------
                CONVERSION FACTORS


Hectares x 2.471 = acres

Kilometers x 0.6214 = miles

Meters x 3.281 = feet

Cubic meters x 8.107 x 10"4 = 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 FLO*  INFORMATION ,CCR TCXAS

LAKE CODE 4809     CANrON

     TOTAL DRAINAGE AREA Of LAKE(SQ KM)   3719.2
                                       03/15/76
4809A1
*»809A2
SUB-DRAlN«oE
A»EA (SO KM) JAN
3719.2
3405.8
28.2
284.9
5.97
6.60
0.198
1.2?
FEB
6.82
7.67
0.190
1.27
MAR '
7.87
7.59
0.119 0
0.91
APR
8.33
8.83
.170
1.22
MAY
9.74
12.91
0.2S3
1.95
NORMALIZED FLOWS(CMS)
JUN JUL AUG SEP
9.29
9.71
0.198
1.42
10.51
7.22
0.108
0.85
8.52 7.16
4.16 8.61
0.037 0.082
0.37 0.76
OCT
7.79
5.97
0.136
0.93
NOv*
7.48
5.78
0.099
0.74
DEC
5.38
5.80
0.136
0.93
MEAN
7.91
7.56
0. 146
1.05
SUMMARY

TOTAL
SUM OF
DRAINAGE AREA OF LAKE =
SUB-DRAINAGE AREAS =
3719.2
3719.0


TOTAL FLOW IN =
TOTAL FLOW OUT =
105.
94.
25
86


     MEAN MONTHLY FLOWS AND DAILY FLOWS
TRIBUTARY   MONTH   YEAK    MEAN FLOW  DAY
4809A1
FLOW  DAY
FLOW  DAY
FLOW
4809A2
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
a
74
74
74
74
75
75
75
75
75
75
75
75
74
74
74
74
75
75
75
75
75
75
75
75
19.539
10.477
28.034
13.451
19.737
54.368
21.181
16.650
26.221
61.448
24.551
19.14?
17.840
9.203
26.618
14.300
16.339
52.952
19.397
15.291
53.519
35.396
20.445
19.142
8
8
8
9
8
7
7
3
8
9
8
8
8
8
8
9
8
• 7
7
3
8
9
8
8
22.370
10.279
47.289
18.463
23.984
19.142
20.756
16.537 21
20.445 23
48.139
90.331
19.171
13.734
8.750
29.733
13.309
17.273
65.978
22.597
13.451 21
1».5<*8 23
31.432
22.144
19.171







16.622
20.756










11.100
43.042




-------
   TRIBUTARY "LOW INFORMATION Kuft TE'AAS
                                                          03/16/76
LA
-------
        APPENDIX D





PHYSICAL and CHEMICAL DATA

-------
STORE7 «ETRIEVftL OATE 76/02/11
                                                                  480901
                                                                 29 52 05.0 098 11 58.0
                                                                 CANYON RESERVOIR
                                                                 H3091   TEAAS
  DATE
  FROM
   TO
TIME DEPTH
 OF
DAY  FEET
74/03/13 09 30 0000
         09 30 0006
         09 30 0020
         09 30 0045
         09 30 0070
         09 30 0095
         09 30 01*23
74/05/22 15 40 0000
         15 40 0005
         15 40 0022
         15 40 0055
         15 40 0090
         15 40 0128
74/08/15 09 30 0000
         09 30 0005
         09 30 0015
         09 30 0030
         09 30 0043
         09 30 0060
         09 30 0080
         09 30 01CO
74/11/05 09 20 0000
         09 ?0 0005
         09 20 0020
         09 20 0040
         09 20 0060
         09 ?0 0080
         09 20 0101
 00010
»ATER
 TEMP
 CENT

   17.1
   17.0
   lb.5
   14.5
   12.7
   12.5
   12.0
   26.7
   26.3
   25.1
   17.9
   14.3
   13.4
   27.4
   27.1
   27.0
   26.8
   25.1
   19.5
   16.9
   15.6
   21.3
   21.3
   21.3
   21.3
   21.3
   21.3
   20.4
IIL'PALES

00300
DO

MG/L

9.0
9.6
9.2
9.0
8.8
7.0

8.0
6.2
5.4
3.2
3.2
7.2
7.6
7.6
7.6
1.4
1.4
2.0
0.6
6.8
6.6
7.4
6.8
6.4
8.0
0.6

00077 00094
THANSP CNDUCTVY
SECCHl FIELD
INCHES MICROMHO
168 35C
350
350
335
320
320
325
102 416
406
395
366
346
342
216 383
382
381
360
391
371
359
355
180 346
345
345
346
345
345
386
3
00400
PH

su
8.35
8.35
8.30
8.25
8.25
8.20
8.00
8.10
8.05
7.70
7.55
7.5C
7.50
8.40
8.30
8.3U
8.40
7.60
7.8C
7.80
7.80
7.85
7.85
7.84
7. S3
7.80
7.75
7.22

00410
r ALK
CAC03
MG/L
186
186
187
188
189
189
194
163
155
180
185
187
189








168
169
167
168
167
168
201
2111202
0127
00610
NH3-N
TOTAL
MG/L
0.020
0.020
0.020
0.030
0.020
0.020
G.020
0.050
0.030
0.020
0.020
0.030
0.030








0.020K
0.020K
0.020K
0.020K
0.020K
0.040
0.150
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.500
0.200K
0.200K
0.200K
0.200K
0.200K








0.300
0.200
0.200
0.200K
0.200K
0.200K
0.300
00630
N02&N03
N-TOTAL
MG/L
0.400
0.390
0.390
0.390
0.390
0.390
0.450
0.430
0.420
0.470
0.450
0.440
0.440








0.250
0.240
0.250
0.240
0.240
0.240
0.130
00671
PHOS-DIS
0«THO
MG/L P
0.005
0.010
0.005
0.004
0.005
0.006
0.005
0.004
0.003
0.003
0.002K
0.002
0.002








0.009
0.006
0.006
0.006
0.005
0.005
0.005
         K VALUE KNOWN TO BE
         LESS THAN  INDICATED

-------
STORE! RETRIEVAL 5ATE
                                                                  480^01
                                                                 29 52 05.0 098 11 53.0
                                                                 CANYON RESERVOIR
                                                                 430^1   fEAAS
DATE
FROM '
TO
74/03/13






74/05/22





74/08/15


74/11/05








OU&65 32217 00031
TIME DEPTH PHOS-TOT CrILRPHYL INCOT LT
OF A -(EMNIN<~>
DAY FEET
09
09
09
09
09
09
09
15
15
15
15
15
15
09
09
09
09
09
09
09
09
09
09
09
09
30
30
30
30
30
30
30
40
40
40
40
40
40
30
30
30
20
20
20
20
20
?0
20
20
20
0000
OOOb
0020
0045
0070
0095
0123
0000
0005
0022
0055
0090
0123
0000
0003
0043
0000
0001
0005
0020
0029
0040
0060
0030
0101
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0



0

0
0

0
0
0
0
.003
.007
.006
.006
.005
.006
.003
.009
.008
.007
.006
.OOci
.007



.011

.006
.003

.007
.006
.006
.009
UG/L PERCENT
1.1






4.4





2.7
50.0
1.0
2.2
50.0


1.0




                                                                                      21112G2
                                                                                     0127 FEET

-------
       RETRIEVAL OATE 7b/C2/li
                                                                   480902
                                                                  29  52  54.0  098  13  37.0
                                                                  CANYON rt£St*VOI«
                                                                  48091    TEXAS
  DATE
  FROM    OF
   TO    DAY
74/03/13
74/05/22
74/08/15
74/11/05
10
10
10
10
10
10
10
16
16
16
16
16
16
10
10
10
10
10
10
10
10
10
10
10
10
10
  DEPTH

  FEET

30 0°000
30 0006
30 0015
30 0035
30 0058
30 0075
30 0094
10 0000
10 0005
10 0020
10 0030
10 0055
10 0088
15 0000
15 0010
15 0035
15 0043
15 0055
15 0080
05 0000
05 0005
05 0020
05 0040
05 0060
05 0085
05 0099
 00010
WATER
 TEMP
 CENT

   18.4
   18.4
   17.4
   15.3
   12.9
   12.7
   12.4
   27.2
   26.0
   25.1
   23.8
   18.6
   14.8
   27.9
   27.7
   27.4
   25.1
   19.9
   17.2
   21.4
   21.4
   21.4
   21.3
   21.3
   20.9
   20.6
11EPALES

00300
DO

MG/L

9.0
9.0
9.4
8.2
7.8
7.0

8.0
7.2
5.4
2.6
1.6
7.2
7.2
6.8
2.0
0.2
2.6
7.4
7.4
7.0
7.8
7.4
4.0
2.0

00077 00094
THANSP CNDUCTVY
SECCril FIELD
INCHES MICROMHO
106 365
365
355
340
320
320
325
95 416
401
395
389
369
350
144 385
385
383
391
373
365
180 343
342
341
340
341
405
422
3
00400
PH

SU
8.35
8.30
8.30
8.25
8.20
8.15
8.00
8.20
8.15
8.00
7.75
7.55
7.60
8.50
8.40
8.40
7.60
7.70
7.50
7.97
7.98
7.98
7.98
7.96
7.59
7.47

00410
T ALK
CAC03
MG/L
190
189
189
190
193
187
190
162
163
165
180
187
188






165
163
162
161
159
182
201
2111202
0100
00610
NH3-N
TOTAL
MG/L
0.040
0.030
0.030
0.020
0.030
0.030
0.020
0.040
0.030
0.040
0.020
0.040
0.030






0.020
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
FEET OEPTD
00625
TOT KJEL
N
MG/L
0.500
0.200
0.200
0.200K
0.200
0.200
0.200
0.400
0.200K
0.200K
0.200K
0.200K
0.200K






0.400
0.200
0.300
0.300
0.400
0.400
0.300
00630
N02&N03
N- TOTAL
MG/L
0.420
0.410
0.410
0.390
0.390
0.400
0.430
0.400
0.420
0.460
0.460
0.420
0.400






0.230
0.240
0.230
0.230
0.230
0.380
0.480
00671
PHOS-DIS
ORTHO
MG/L P
0.010
0.005
0.005
0.011
0.010
O.OOb
0.011
0.003
0.003
0.002
0.002K
0.002
0.002






0.013
0.014
0.012
0.011
0.014
0.012
0.013
           K  VALUt KNOWN TO BE
           LESS  THAN INDICATED

-------
STOREf RETRIEVAL OATfe; 7t/02/ii
                                                                   480902
                                                                  29 62 54.0 098 13 37.0
                                                                  CAVCH ^S
                                                                  48Q91   TEA4S
                                                                  llE^ALc.5
                                                                  3
 21H2U2
0100 FEET
                                                                                                 DEPTH
DATE
TO
7^/03/13






74/05/22





74/08/15


74/11/05








00665 32217 00031
TIME DEPTH PHOS-TOT CHLPPHYL INCDT LT
OF A .-?EMNING
DAY FEET
10
10
10
10
10
10
10
16
16
16
16
16
16
10
10
10
10
10
10
10
10
10
10
10
10
30
30
30
30
30
30
30
10
10
10
10
10
10
15
15
IS
05
05
05
05
05
05
05
05
05
0000
OOOb
0015
0035
0058
0075
0094
0000
0005
0020
0030
0055
0088
0000
0005
0043
0000
0001
0005
0020
0023
0040
0060
0085
0099
MG/L P
0
0
0
0
0
0
0
0
0
0
0
0
0



0

0
0

0
0
0
0
•
•
•
•
•
*
•
•
.
•
•
•
*



•

•
•

•
•
•
•
013
006
006
006
010
006
Oil
008
006
007
006
007
053



029

023
031

023
034
023
027
UG/L PEKCENT
0.8






3.5





1.0
50.0
1.0
0.9
50.0


1.0





-------
STOSEY RETRIEVAL DATE 76/02/11
                                                                  480903
                                                                 29 53 31.0 098  16 49.0
                                                                 CANYON RESERVOIR
                                                                 48091    TEXAS
              C

DATE
FROM
TO
74/03/13





74/05/23




74/08/15





74/11/05






TIME DEPTH
OF
DAY FEET
11 20 0000
11 20 0006
11 20 0020
11 20 0035
11 20 0050
11 ?0 0068
09 55 0000
09 55 0005
09 55 0015
09 55 0040
09 55 0071
10 45 0000
10 45 0015
10 45 0028
10 45 0040
10 45 0055
10 45 0074
10 50 0000
10 50 0005
10 50 0015
10 50 0030
10 50 0050
10 50 0061
00010
WATER
TEMP
CENT
19.6
19.7
18.0
15.4
13.8
13.2
27.7
27.2
26.4
20.5
15.9
28.2
28.2
27.2
26.6
20.2
17.8
21.2
21.2
21.2
21.2
21.0
20.4
00300
DO

MG/L

S.4
8.2
8.0
7.2
7.2

7.4
6.4
4.4
2.6
7.2
7.4
7.0
2.6
0.4
0.8
7.6
7.4
7.6
7.2
7.0
5.4
11EPALES

00300
DO

MG/L

8.4
8.2
8.0
7.2
7.2

7.4
6.4
4.4
2.6
7.2
7.4
7.0
2.6
0.4
0.8
7.6
7.4
7.6
7.2
7.0
5.4

00077 00094
TRANSP CNOUCTVY
SECCHI FIELD
INCHES MICROMHO
108 400
400
395
365
365
355
75 424
420
418
369
383
144 399
398
420
422
482
417
72 343
343
343
342
332
282
3
00400
PH

SU
8.30
8.30
8.20
8.00
8.00
8.00
8.30
8.10
7.60
7.30
7.40
8.40
8.30
8.00
7.80
7.20
7.40
7.99
8.00
8.00
7.99
7.90
7.50
2111202
0072 FEET DEPTH
00410
T ALK
CAC03
MG/L
201
201
203
199
224
216
168
169
169
170
164






163
163
163
162
159
144
00610
NH3-N
TOTAL
MG/L
0.050
0.050
0.040
0.040
0.060
0.050
0.040
0.050
0.050
0.040
0.030






0.040
0.030
0.030
0.030
0.040
0.060
00625
TOT KJEL
N
MG/L
0.400
0.300
0.200K
0.300
0.300
0.300
0.800
0.200K
0.200K
0.200K
0.200K






0.300
0.300
0.300
0.200K
0.200K
0.200K
00630
M02&N03
N-TOTAL
MG/L
0.600
0*600
0.600
0.540
0.660
0.620
0.480
0.490
0.520
0.550
0.640






0.260
0.250
0,250
0.250
0.250
0.320
00671
PHOS-DIS
ORTHU
MG/L P
0.011
0.011
0.005
0.010
0.011
0.006
0.007
0.005
0.005
0.003
0.011






0.006
0.005
0.006
0.011
0.011
0.015
          K VALUE KNOWN TO BE
          LESS THAN INDICATED

-------
STORES RETRIEVAL liATE 76/02/11
                                                                  480903
                                                                 29 53 31.0 098  16 49.0
                                                                 CANYON RESERVOIR
                                                                          TEXAS
                                                                  11EPALES
                                                                  3
 2111202
0072 FEET
DEPTH
DATE
FROM
TO
74/03/13





74/05/23




74/08/15


74/11/05







00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCDT LT
OF A REMNING
DAY FEET
11
11
11
11
11
11
09
09
09
09
09
10
10
10
10
10
10
10
10
10
10
10
20
20
20
20
20
20
55
55
55
55
55
45
45
45
50
50
50
50
50
50
50
50
0000
0006
0020
0035
0050
0068
0000
0005
0015
0040
0071
0000
0005
0028
0000
0001
0005
0013
0015
0030
0050
0061
MG/L P
0
0
0
0
0
0
0
0
0
0
0



0

0

0
0
0
0
.009
.009
.007
.007
.007
.014
.018
.008
.020
.016
.021



.019

.015

.015
.016
.016
.045
UG/L PERCENT
0.9





7.9




1.0
50.0
1.0
1.1
50.0

1.0





-------
STORET RETRIEVAL UATE 76/02/11
                                                                  480904
                                                                 29 53 19.0 098 17 54.0
                                                                 CANYON FTSEftVOIR
                                                                 48091   TEXAS
                      00010
  DATE   TIME DEPTH  WATER
  FROM    OF          TEMP
   TO    DAT  FEET    CENT
74/03/13 12
12
12
12
12
12
74/05/23 10
10
10
10
10
10
74/08/15 11
11
11
11
11
74/11/05 11
11
11
11
11
00 0000
00 0006
00 0015
00 0028
00 0038
00 0050
15 0000
15 0005
15 0015
15 0025
15 0035
15 0051
20 0000
20 0005
20 0020
20 0030
20 0043
20 0000
20 0005
20 0015
20 0025
20 0039
20.0
20.0
19.9
16.6
15.6
14.7
28.2
27.7
26.5
25.8
21.6
19.0
28.1
28.1
27.8
27.3
25.5
20.8
20.8
20. d
20.8
20.5

8.0
8.0
7.0
6.4
5.0

7.4
6.2
4.2
1.0
1.0
6.8
7.0
6.4
5.0
1.8
6.8
7.2
7.0
6.6
6.0
00300
DO

MG/L

8.0
8.0
7.0
6.4
5.0

7.4
6.2
4.2
1.0
1.0
6.8
7.0
6.4
5.0
1.8
6.8
7.2
7.0
6.6
6.0
00077 00094
TRANSP CNOUCTVY
SECCril FIELD
INCHES MICROMHO
60 425
425
420
410
430
430
55 436
432
430
512
390
382
90 412
413
413
424
497
48 343
343
344
338
314
11EPALES
3
00400 00410
PH T ALK

SU
8.20
H.20
8.00
8.00
7.90
7.80
8.00
7.90
7.80
7.40
7.10
7.10
8.30
8.30
8.20
7.85
7.60
7.99
8.01
7.99
7.90
7.69
CAC03
MG/L
178
200
210
208
216
232
174
174
178
203
189
188





163
166
165
165
164
2111202
0054 FEET DEPTH
00610 00625 00630
NH3-N TOT KJEL N02&N03
TOTAL
MG/L
0.060
0.050
0.060
0.060
0.080
0.150
0.050
0.020
0.050
0.060
0.040
0.050





0.460
0.040
0.050
0.050
0.060
N N-TOTAL
MG/L
0.500
0.300
0.200
0.200
0.200
0.200
0.400
0.200K
0.200
0.200
0.200K
0.200K





0.400
0.200
0.200K
0.200K
0.200K
MG/L
0.720
0.700
0.770
0.780
0.890
0.870
0.580
0.530
0.580
0.970
0.710
0.700





0.290
0.280
0.280
0.360
0.430
00671
PHOS-DIS
ORTHO
MG/L P
0.005
0.004
0.005
0.005
0.004
0.006
0.005
0.003
0.008
0.004
0.006
0.005





0.009
0.013
0.011
0.009
0.009
            K VALUE KNOWN TO BE
            LESS THAN INDICATED

-------
STORET RETRIEVAL DATE  7t,/02/li
                                                                    480904
                                                                   29 53 19.0 098 17 S4.0
                                                                   CANYON P*-'SEr>VOIR
                                                                           TEXAS
                                                                                        2111202
                                                                                       0054 FEET
DEPTH

DATE
FROM
TO
74/03/13





74/05/23





74/08/15


74/11/05





TIME DEPTH
OF
DAY FEET
12 00 0000
12 00 0006
12 00 0015
12 00 0028
12 00 0038
12 00 0050
10 15 0000
10 15 0005
10 15 0015
10 15 0025
10 15 0035
10 IS 0051
11 20 0000
11 20 0002
11 20 0020
11 20 0000
11 ?0 0005
11 20 0015
11 20 0025
11 20 0039
00665
PHOS-TOT

MG/L P
0.009
0.010
0.010
0.010
0.007
0.014
0.013
0.013
0.016
0.017
0.015
0.021



0.022
0.022
0.020
0.025
0.040
32217 00031
CHLRPHYL INCDT LT
A REMNlNG
UG/L PERCENT
1.2





7.0





3.0
50.0
1.0
1.3





-------
  APPENDIX E
TRIBUTARY DATA

-------
STOSiiT RETRIEVAL DATE 76/03/10
                                                                  480VA1
                                                                 29 51  50,0  098  09  50.0  4
                                                                 GUAUALUP" RIVER
                                                                 49029    7.5 SATTLtV
                                                                 O/CANYON RESERVOIR
                                                                 6r?D6 ON  CO  riWY  306 .25  M NW  OF HWY 2673
                                                                 IIE^ALES              2111204
                                                                  0000  FEET   DEPTH   CLASS 00
  DATE   TIME DEPTH N02S.N03
  FROM    OF
   TO    DAY  FEET
74/09/08
74/10/08
74/11/08
74/12/09
75/01/08
75/02/07
75/03/07
75/04/03
75/04/21
75/05/08
75/05/23
75/06/09
75/07/08
75/08/08
11 00
09 45
10 45
10 00
08 50
08 50
11 00
09 30
13 55
09 35
09 15
09 30
09 00
09 15
0630
'S.N03
OTAL
IG/L
0.128.
0.144
0.20S
0.288
0.416
0.36a
0.350
0.430
0.450
0.470
0.490
0.450
0.590
0.315
00625
TOT KJEL
N
MG/L
0.600
0.600
0.4QO
0.700
0.400
0.200
0.500
0.550
0.250
0.175
0.250
0.250
0.150
0.200
00610
NH3-N
TOTAL
MG/L
0.020
0.190
0.065
0.032
0.016
0.016
0.025
0.010
0.015
0.020
0.010
0.012
0.010
0.030
00671
PHOS-DIS
OffTHO
MG/L P
0.005K
0.005K
0.005
0.016
0.005K
0.008K
0.005K
0.005K
0.005K
0.005K
0.005K
0.005
0.005K
0.005K
00665
PHOS-TOT

MG/L P
0.010
0.010K
0.010K
0.016
0.010K
0.010K
0.010
0.020
0.020
0.010K
0.010K
0.010
0.010
0.010
  K  VALUE  KNOWN  TO  BE
  LESS  THAN  INDICATED

-------
STORET RETRIEVAL DATE 76/03/10
  DATE   TIME DEPTH N02&N03
  FROM    OF
   TO    DAY  FEET
74/09/08
74/10/08
74/11/08
74/12/09
75/01/08
75/02/07
75/03/07
75/04/03
75/04/21
75/05/08
75/05/23
75/06/09
75/07/OB
75/08/08
08 55
09 15
09 05
09 15
10 15
10 30
09 50
10 50
15 05
10 55
10 45
11 15
10 30
10 35
                                                                  4B09A2
                                                                 29 51 37.0 098  28  00.0  4
                                                                 GJAjALUP^ r>IVER
                                                                 48       7.5  ArthALl
                                                                 T/C^iNYON RESERVOIR
                                                                 BrtQG ON TO HrtY  311  2  MI b£  OF  JCT  US  2ril
                                                                 lltPALti              2111204
                                                                  0000 FEET   DEPTH   CLASS  00
0630
6.N03
OTAL
G/L
1.000
0.930
0.880
1.010
0.960
0.800
1.400
1.050K
1.200
0.930
0.870
1.050
1.050
0.950
00625
TOT KJEL
N
MG/L
1.000
0.400
0.700
1.200
0.600
0.300
0.400
0.350
0.400
0.650
0.350
0.200
0.250
0.350
00610
KH3-N
TOTAL
MG/L
0.005K
0.030
0.010
0.032
0.008
0.016
0.010
0.02S
0.055
0.035
0.010
0.005K
0.005K
0.005
00671
PHOS-DIS
ORTriO
MG/L P
0.005
0.010
0.005
0.008
0.005K
0.008K
0.005K
0.005K
0.005K
0.010
0.015
0.005K
0.005K
0.005K
00665
PHOS-TOT

MG/L P
0.020
0.010
0.020
0.010
O.Olu
0.010K
0.010
0.010K
0.020
0.020
0.040
0.010
0.025
0.010
 K  VALUE KNOWN  TO  BE
 LESS  THAN  INDICATED

-------
STORE! RETRIEVAL DATE 76/03/iO
O 098 21 55.0 4
                                                                  480961
                                                                 29 55 OO
                                                                 REBbECA
                                                                 48      7.S FISChEK
                                                                 T/cANroN RESERVOIR
                                                                 b*DG ON rEC RO OFF US 281 4 M NE SPR
                                                                 11EPALES             2111204
                                                                  0000 FEET  DEPTH  CLASS 00
DATE
FROM
TO
74/09/08
74/10/08
74/11/08
74/12/09
75/01/08
75/02/07
75/03/07
75/04/03
75/04/21
75/05/08
75/05/23
75/06/09
75/07/08
75/08/08
00630 00625
TIME DEPTH N02^N03 TOT KJEL
OF N-TOTAL N
DAY FEET
09
09
09
09
09
10
10
10
14
10
10
10
10
10
35
45
30
35
40
05
15
20
35
25
05
50
00
10
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.208
.128
.152
.136
.152
.240
.180
.105
.090
.140
.100
.130
.010
.090
MG/L
0.
0.
0.
0.
0.
0.
0.
.0.
0.
0.
0.
0.
0.
0.
900
100
400
200
400
200
700
400
300
450
250
100
100
100
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
015
020
005
016
008
008K
025
115
015
060
020
005K
010
005K
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
005K
005K
005K
008K
005K
008K
005K
005K
005K
005K
005K
005K
005K
005K
MG/L P
0.010
0.010K
0.010K
0.010K
0.010K
0.010*
0.010K
0.020
0.010K
0.010K
0.010K
0.010K
0.010K
0.010K
  K VALUE KNOWN TO BE
  LESS THAN INDICATED

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