U.S. ENVIRONMENTAL PROTECTION AGENCY
           NATIONAL EUTROPHICATION SURVEY
                    WORKING PAPER SERIES
                                          REPORT
                                            ON
                                   ELEPHANT BUTTE RESERVOIR
                                   SIERRA AND SOCORRO COUNTIES
                                         NEWFEXICO
                                        EPA REGION VI
                                     WORKING PAPER No, 821
 CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                             and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA

-------
                                   REPORT
                                     ON
                          ELEPHANT BUTTE RESERVOIR
                         SIERRA AND SOCORRO COUNTIES
                                EPA REGION VI
                            WORKING PAPER No, 821
       WITH THE COOPERATION OF THE
NEW MEXICO ENVIRONMENTAL IMPROVEMENT AGENCY
                  AND THE
          NEW MEXICO NATIONAL GUARD
                JULY, 1977

-------
     REPORT ON ELEPHANT BUTTE RESERVOIR

   SIERRA AND SOCORRO COUNTIES, NEW MEXICO

                EPA REGION VI


                     by

       National  Eutrophication Survey

        Water and Land Quality Branch
       Monitoring Operations Division
Environmental Monitoring & Support Laboratory
              Las Vegas, Nevada

                     and

           Special Studies Branch
 Corvallis Environmental Research Laboratory
              Corvallis, Oregon
            Working Paper No. 821
     OFFICE OF RESEARCH AND DEVELOPMENT
    U.S.  ENVIRONMENTAL PROTECTION AGENCY

                  July 1977

-------
                               CONTENTS

                                                       Page
Foreword                                                i i
List of New Mexico Study Lakes                          iv
Lake and Drainage Area Map                               v
Sections
  I. Conclusions                                         1
 II. Lake and Drainage Basin Characteristics             4
III. Lake Water Quality Summary                          6
 IV. Nutrient Loadings                                  12
  V. Literature Reviewed                                18
 VI. Appendices                                         19

-------
                                  11


                               FOREWORD
     The National Eutroph1cat1on Survey was Initiated 1n 1972 1n
response to an Administration commitment to Investigate the nation-
wide threat of accelerated eutrophlcatlon to freshwater lakes and
reservoirs.

OBJECTIVES

     The Survey was designed to develop, in conjunction with state
environmental agencies, Information on nutrient sources, concen-
trations, 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 nonpolnt source pollution abatement 1n lake water-
sheds.

ANALYTIC APPROACH

     The mathematical and statistical  procedures selected for the
Survey's eutrophlcatlon 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 eutrophlcatlon control can be made.

LAKE ANALYSIS

     In this report, the first stage of evaluation of lake and
watershed 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)L water quality criteria/standards review
[§303(cj], clean lakes [§314(a,bj], and water quality monitoring
[§106 and §305(b)] activities mandated by the Federal Water
Pollution Control Act Amendments of 1972.

-------
                                    iii
     Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condition
are being made to advance the rationale and data base for refine-
ment of nutrient water quality criteria for the Nation's freshwater
lakes.  Likewise, multivariate evaluations for the relationships
between land use, nutrient export, and trophic condition, by lake
class or use, are being developed to assist in the formulation of
planning guidelines and policies by the U.S.  Environmental  Protection
Agency and to augment plans implementation by the states.

ACKNOWLEDGMENTS

     The staff of the National Eutrophication Survey (Office of
Research and Development, U.S. Environmental  Protection Agency)
expresses sincere appreciation to the New Mexico Environmental
Improvement Agency for professional involvement, to the New Mexico
National Guard for conducting the tributary sampling phase of the
Survey, and to those New Mexico wastewater treatment plant operators
who provided effluent samples and flow data.

     The staff of the Surveillance Section, Water Quality Division,
New Mexico Environmental Improvement Agency provided invaluable lake
documentation and counsel during the Survey,  reviewed the preliminary
reports and provided critiques most useful in the preparation of
this Working Paper Series.

     Brigadier General Franklin E. Miles, the Adjutant General of
New Mexico, and Project Officer Colonel Marvin D. Bohannon, who
directed the volunteer efforts of the New Mexico National Guardsmen,
are also gratefully acknowledged for their assistance to the Survey.

-------
                                 IV
                    NATIONAL EUTROPHICATION SURVEY
                              STUDY LAKES
                          STATE OF NEW MEXICO
LAKE NAME
Alamogordo Reservoir
  (Sunnier Lake)
Bluewater Lake
Conchas Reservoir
Eagle Nest Lake
Elephant Butte Reservoir
El Vado Reservoir
Lake McMillan
Ute Reservoir
    COUNTY
De Baca, Guadalupe

Valencia, McKinley
San Miguel
CoIfax
Sierra
Rio Arriba
Eddy
Quay

-------
r
                                                                   ALBUQUERQUE
                                                                      N.flex.
                                                                   Map Location
        \
  ELEPHANT BUTTE

      RESERVOIR
   Tributary Sampling Site
x  Lake Sampling Site
f  Sewage Treatment Facility
::.i  Land Subject to Inundation
 o      to    20     30    «o Km.
 0         »       MH1.
           Scale
         Truth  or Contequoncet
          RIO  GRANOE
                          I Cabalto
                          ' Ktitrnir

-------
            REPORT ON ELEPHANT BUTTE RESERVOIR,  NEW MEXICO
                            STORET NO.  3505

I.    CONCLUSIONS
     A.    Trophic Condition:*
               Survey data indicate that Elephant Butte Reservoir is
          eutrophic,  i.e., nutrient rich and  potentially highly pro-
          ductive. Whether such  nutrient enrichment is to be  considered
          beneficial  or deleterious is  determined by its actual  or
          potential impact upon designated beneficial  water uses of
          the lake.   In Elephant  Butte  Reservoir, biological response as
          measured by chlorophyll  a_ values (range of 1.3 yg/1  to 11.2
          yg/1, mean  of 6.8 yg/1)  is more typical of that observed in
          mesotrophic water bodies.
               Secchi disc visibility was poor;  low transparencies
          (range of 0.1 to 1.2 m)  suggest that much of the primary pro-
          ductivity in Elephant Butte Reservoir  may have been  light-
          limited, even though no  clear-cut direct relationship was
          noted between light penetration and chlorophyll  a_ levels.
          The potential for primary productivity as measured by algal
          assay control yields was high.  Of  the 9 New Mexico  lakes
          (including  Navajo Reservoir)  sampled in 1975, 2 had  higher
          median total phosphorus  values (0.083  mg/1), 3 had higher
          median inorganic nitrogen levels (0.110 mg/1), and 1  had
      *See Appendix E.

-------
     higher median orthophosphorus values (0.052 mg/1) than Elephant
     Butte Reservoir.
          Survey limnologists reported an algal  bloom on the October
     sampling date.
B.   Rate-Limiting Nutrient:
          The algal assay results indicate that  nitrogen was the primary
     limiting nutrient in Elephant Butte Reservoir during the spring
     sampling (05/02/75) and phosphorus the primary limiting nutrient
     during the fall (10/03/75).  The reservoir  data suggest nitrogen
     limitation at all three sampling times.   The New Mexico Environ-
     mental Improvement Agency (1976) also reports that the reservoir
     is generally limited primarily by available nitrogen but that a
     switch to phosphorus limitation does periodically occur.
C.   Nutrient Controllability:
     1.   Point sources -
               During the sampling year, point sources were calculated
          to contribute 21.0% of the total phosphorus load to Elephant
          Butte Reservoir.   Albuquerque contributed a total of 20.2%
          from two plants,  and the remaining 0.8% was contributed by
          three smaller plants along the Rio Grande.  Phosphorus point
          source loadings to Elephant Butte Reservoir may be somewhat
          overestimated, since the known sewage  treatment plants are
          located well outside 40 stream-km (25  miles) of the lake.

-------
     Additional  investigation  is  needed  to  determine  how much,  if any,
     of the treatment plant loadings,  particularly  those from Albuquerque,
     are trapped in sediments  or  lost  to groundwater  before  reaching
     Elephant Butte Reservoir.
                                                       2
          The present phosphorus  loading of 17.35 g P/m /yr  is  31  times
     that proposed by Vollenweider (1975) as a  "eutrophic" loading.
     Although Vollenweider's model  may not  be applicable to  highly turbid
     water bodies such as Elephant Butte Reservoir, phosphorus  levels
     in the lake are nevertheless excessive and it  is expected  that lake
     water quality will  deteriorate if the  present  loading continues.
     The New Mexico Environmental  Improvement Agency  (1976)  has taken
     the position that reduction  of nutrient contributions from the known
     point sources would not result in any  tangible benefits to the
     reservoir at this time.  They suggest  that when  future  problem
     conditions in the reservoir  necessitate limiting nutrient  loading,
     that maximizing land application  of the upstream municipal  discharges
     would be an effective alternative to reduction of nutrients through
     advanced treatment procedures.
2.    Nonpoint sources -
          The Rio Grande contributed 78.8%  of the total  phosphorus load
     to Elephant Butte Reservoir  during  the sampling  year.   Other studies
     (New Mexico Environmental  Improvement  Agency,  1976) list agricultural
     runoff, high sediment loading and concentrated areas of septic tanks
     as major nonpoint sources of phosphorus to the lake.

-------
                                   4
II.   LAKE AND DRAINAGE BASIN CHARACTERISTICS
          Lake and drainage basin characteristics are itemized below.
     Lake morphometry data were provided by Martin and Hanson (1966)
     and Tony Drypolcher (personal ccmmunication).  Tributary flow
     data were provided by the New Mexico District Office of the U.S.
     Geological Survey (USGS).  Outlet drainage area includes the lake
     surface area,  i^ean hydraulic retention time was obtained by
     dividing the lake volume by mean flow of the outlet.  Precipi-
     tation values are estimated by methods as outlined in National
     Eutrophication Survey (NES) Working Paper No. 175.  A table of
     metric/English conversions is included as Appendix A.
     A.    Lake Morphometry:
          1.   Surface area:   148.05 km2.
          2.   Mean depth:  18.3 meters.
          3.   Maximum depth:  47.9 meters.
          4.   Volume:  2,707.511 x 10& m3.
          5.   Mean hydraulic retention time:   818 days (2.2 yr).

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

     1.   Tributaries -

                                             Drainage       Mean Flow
          Name                               area (km2)     (m3/sec)

          A-2 Rio Grande                      71,742.9        37.07
          B-l Alamosa River                    1,745.7         0.15
          C-l Unnamed Tributary                    5.7        <0.01
          E-l Unnamed Stream                      41.3         0.01

          Minor tributaries and
          immediate drainage                   2,589.6         1.08

                    Total                     76,125.2        38.31

     2.   Outlet - A-l Rio Grande             76,275.4        38.31

C.   Precipitation:

     1.   Year of sampling:  23.4 cm.
     2.   Mean annual:  20.7 cm.

-------
 III.  LAKE WATER QUALITY SUMMARY
          Elephant Butte Reservoir was sampled three times during the
      open-water season of  1975 by means of a pontoon-equipped Huey heli-
      copter.   Each time, samples for physical and chemical parameters
      were collected  from four stations on the lake* and from a number
      of depths at each station (see map, page v).  During each visit,
      depth-integrated samples were collected from each station for
      chlorophyll a^ analysis and phytoplankton identification and enumera-
      tion.   During the first and last visits, 18.9-liter depth-integrated
      samples were composited for algal assays.  Maximum depths sampled
      were 24.7 meters at Station 01, 22.9 meters at Station 02,  18.3
      meters  at Station 03, 9.4 meters at Station 04, 15.5 meters at
      Station 05, and 5.8 meters at Station 06.  For a more detailed
      explanation of  NES methods, see NES Working Paper No. 175.
          The  results obtained are presented in full in Appendix C and
      are summarized  in III-A for waters at the surface and at the maxi-
      mum depth for each site.  Results of the phytoplankton counts and
      chlorophyll a^ determinations are included in III-B.  Results of
      the limiting nutrient study are presented in III-C.
*Stations 03 and 04 were replaced by Stations 05 and 06 on the August
  and October sampling dates.

-------
t L t J "• "; T nl
STO^ET COC'E
            (DEG C1^
O.-l.S M DEPTH
VAX DEPTH**

DISSOLVED OXYGEN ('
O.-l.S M DEPTH
"AX DEPTH**
CONDUCTIVITY  (I
0.-1.5 M OEPTH
MAX DEPTH**
Ph (STANDARD UNITS)
O.-l.S * DEPTH
"AX DEPTH**

TOTAL ALKALINITY (MG/L)
0.-1.5 M DEPTH
MAX DEPTH**

TOTAL P (MG/L)
O.-l.S M OEPTH
    DEPTH**
DISSOLVED ORTHO P (MG/L)
0.-1.5 M DEPTH
MAX DEPTH**

N02+N03 (MG/L)
O.-l.S M DEPTH
MAX DEPTH**

AMMONIA (MG/L)
O.-l.S M DEPTH
MAX DEPTH**

KJEL06HL N (M(5/L)
0.-1.5 M OEPTH
MAX DEPTH**

SECCHI DISC  (METERS)

'«•*
a
4
)
PI
4
8
4
8
4
.)
9
4
8
4
'L>
8
4
8
4
8
4
8
4
I S/
^<5
u&'.^t
12.3- 14.0
10.5- 12.9
7.6- 9.6
6.6- 7.?
565.- 689.
573.- 719.
8.6- 8.9
8.4- 4.8
149.- 164.
158.- 161.
0.048-0.111
0. 052-0.129
0.018-0.069
0.023-0.043
0.020-0.110
0.020-0.04Q
0.020-0.040
0.040-0.070
0.200-0.800
0.400-0.600
' 7/7-. )
= L
M F -. T A N
13.0
11.1
8.9
7.1
587.
634.
8.7
3.5
1M.
160.
O.OS1
0.097
0.0?5
0.030
0,0?0
o.o?o
0.0?0
0.060
0.400
0.400
MAX
->E>T>-
"•* A ^G .
'"ETE-S)
o.O- 1.5
9.4- 23.8
0.0- 1.5
9.4- 23.8
0.0- 1.5
9.4- 23.8
0.0- 1.5
9.4- ?3.8
0.0- 1.5
9.4- 23.8
0.0- 1.5
9.4- 23.8
0.0- 1.5
9.4- 23.8
0.0- 1.5
9.4- 23.8
0.0- 1.5
9.4- 23.8
0.0- 1.5
9.4- 23.8

N*
P
a
8
3
8
4
8
4
8
4
8
4
8
4
8
4
8
4
P
4
                                                              AND C"t*ICAL CHAHACTEnISTICS

                                                                     <   3/19/74  !
                                                                                  MAX
                                                                     S*»* =  u.    DEPTH
                                                                                  "4NGE
                                                                          .-'EOIAN  ("ETEPS)
                            0.3-  1.1
                                         0.9
                                                              25.0- 26.3   25.6   0.0-  1.5
                                                              20.9- 24.5   22.7   5.8- 24.7
 5.8-  8.2    7.0   0.0-  1.5
 0.3-  5.4    2.0   5.8- 19.2
621.- 667.   629.   0.0-  1.5
590.- 677.   605.   5.8- 24.7
                                                                8.4-   8.7    8.6    0.0-   1.5
                                                                7.6-   8.4    7.9    5.8-  24.7
    119.- 132.    123.    0.0-  1.5
    127.- 136.    131.    5.8- 24.7
                                                           8  0.062-0.118  0.092   0.0-  1.5
                                                           4  0.102-0.203  0.164   5.8- 24.7
                                                           8  0.032-0.062  0.046   0.0-  1.5
                                                           4  0.073-0.190  0.130   5.8- 24.7
8  0.020-0.100  0.030   0.0-  1.5
4  0.120-0.240  0.170   5.8- 24.7
8  0.020-0.020  0.020   0.0-  1.5
4  0.020-0.200  0.045   5.8- 24.7
P  0.400-0.500  0.400   0.0-  1.5
4  0.400-0.600  0.450   5.8- 24.7
                                                                0.2-  1.2    0.6
                                                                                               N*
                                                                                                          (  10/  3/75  )
                                                                                                                       MAX
                                                                                                          S«««  =  4     DEPTH
                                                                                                                       PANGE
                                                                                                      PANGE     MEDIAN  (METEPS)
                                                                                                   20.7-  21.6
                                                                                                   20.5-  20.7
                                                                                                    5.4-
                                                                                                    5.4-
                                                                                                         8.4
                                                                                                         7.0
                                                                                              ft
                                                                                              4
                                                                                               8
                                                                                               4
                                        544.- 566.
                                        5*4.- 681.
                                                                                                    7.8-
                                                                                                    8.0-
                                                                                                         8.6
                                                                                                         8.5
                                                                                                   127.- 132.
                                                                                                   132.- 135.
                                                                                                               21.0
                                                                                                               20.5
                                                      6.2
                                                      6.0
                                                                                                                549.
                                                                                                                556.
                                                      ft. 3
                                                      8.3
                                                                                                                131.
                                                                                                                133.
                                                                                              ft  0.078-0.09ft   0.083
                                                                                              4  0.0ft7-0.109   0.089
                                    8  0.038-0.067  0.058
                                    4  0.050-0.12ft  0.060
                                                                                                  0.090-0.?*0
                                                                                                  0.120-0.230
                                                                                                  0.020-0.020
                                                                                                  0.020-0.030
                                                                                                  0.200-0.600
                                                                                                  0.200-0.400
                                                                                                               0.180
                                                                                                               0.165
                                                                                                               0.020
                                                                                                               0.020
                                                                                                               0.300
                                                                                                               0.250
                                                            0.0-  1.5
                                                            3.0- 22.9
                                                                                                                       0.0-  1.5
                                                                                                                       3.0- 22.9
                                                                                                                       0.0-  1.5
                                                                                                                       3.0- 22.9
                                                         0.0-   1.5
                                                         3.0-  22.9
                                                         0.0-   1.5
                                                         3.0-  22.9   -J
                                                            0.0-  1.5
                                                            3.0- 22.9
                                                                                                                       0.0-  1.5
                                                                                                                       3.0- 22.9
                                                                                                                       0.0-  1.5
                                                                                                                       3.0- 22.9
                                                                                                                       0.0-  1.5
                                                                                                                       3.0- 22.9
                                                                                                                       0.0-  1.5
                                                                                                                       3.0- 22.9
                                                                                                    0.2-  0.6     0.4
                          * N = NO. OF SAMPLtS
                          »* MAXIMUM DEPTH SAMPLED AT EACH SITE
                          »** s = NO. OF SITES SAMPLED ON THIS DATE

-------
                                   8
B.   Biological Characteristics:
     1.    Phytoplankton -
Sampling
Date
05/02/75
08/19/75
10/03/75
Dominant
Genera
1.
2.
3.
4.
1.
2.
3.
4.
5.
1.
2.
Stephanodiscus
Chroomonas ?
Coelastrum
Ankistrodesmus
Other genera
Total
Stephanodiscus
Carteria
Chroomonas ?
Microcystis
Schroederia
Other genera
Total
Pennate diatom
Chroomonas ?
Other genera
Algal
Units
per ml
722
611
56
56
1,445
437
328
273
109
109
300
1,556
41
21
                                            Total
62

-------
2.   Chlorophyll a_ -
     Sampling                 Station             Chlorophyll a_
     Date                     Number              (yg/1)	

     05/02/75                   01                     5.1
                                02                     7.2
                                03                     7.4
                                04                     9.7
                                05
                                06

     08/19/75                   01                     7.8
                                02                    11.2
                                03
                                04
                                05                     9.4
                                06                     9.7

     10/03/75                   01                     1.3
                                02                     1.9
                                03
                                04
                                05                     3.6
                                06                     6.8

-------
                                  10
C.   Limiting Nutrient Study:

     1.   Autoclaved, filtered, and nutrient spiked -

                         Ortho P        Inorganic N    Maximum Yield
          Spike (mg/1)   Cone, (mg/1)    Cone,  (mg/1)    (mg/1-dry wt.)

          a.   05/02/75

          Control           0.020          0.025             2.4
          0.05 P           0.070          0.025             2.4
          0.05 P + 1.0 N   0.070          1.025            20.5
          1.00 N           0.020          1.025             7.6

          b.   10/03/75

          Control           0.030          0.230            10.6
          0.05 P           0.080          0.230            12.7
          0.05 P + 1.0 N   0.080          1.230            16.9
          1.00 N           0.030          1.230             9.3

-------
                                 11
2.   Discussion -
          The control  yields  of the assay  alga,  Selenastrum  capri-
     cornutum, indicate that  the potential  for primary  production in
     Elephant Butte Reservoir was high at  both times  of sample  col-
     lection (05/02/75, 10/03/75).   In the May assay, the  significant
     increase in yield over that of the control  produced by  the
     addition of nitrogen as  well as the lack of increase  with  the
     addition of only phosphorus indicates nitrogen  limitation.   In
     the October assay, phosphorus limitation is suggested;  spikes
     of phosphorus produced a slight growth increase  while nitrogen
     spikes alone did not stimulate growth beyond the control yield.
     In both assays, maximum yield was achieved  by the  simultaneous
     addition of both nutrients.
          The mean inorganic nitrogen to orthophosphorus (N/P)  ratios
     in the lake data were 3/1 or less on  all sampling  occasions
     suggesting primary limitation by nitrogen (a mean  N/P ratio  of
     14/1 or greater generally reflects phosphorus limitation).

-------
                                  12
IV.   NUTRIENT LOADINGS
     (See Appendix D for data)
          For the determination of nutrient loadings,  the New Mexico
     National Guard collected a number of monthly near-surface grab
     samples from each of the tributary sites  indicated on the map
     (page v), except for the high runoff months  of April and May when
     two samples were collected.   Sampling was begun in December 1974,
     and was completed in November 1975.
          Through an interagency agreement, stream flow estimates for
     the year of sampling and a "normalized" or average year were pro-
     vided by the New Mexico District Office of the USGS for the tribu-
     tary sites nearest the lake.
          In this report, nutrient loads  for sampled tributaries except
     Unnamed Stream, E-l were determined  by using a modification of a
     USGS computer program for calculating stream loadings.   Nutrient
     loads indicated for tributaries are  those measured minus known
     point source loads, if any.
          Nutrient loadings for Unnamed Stream, Station E-l  and "minor
     tributaries and immediate  drainage"  ("ZZ" of USGS) were estimated
     by multiplying the mean annual  concentrations in  Unnamed Stream
     at Station E-l by the appropriate mean annual  flow.
          The operators of the  Albuquerque (2  plants),  Belen, and Los
     Lunas wastewater treatment plants provided monthly effluent samples

-------
                                      13
          and corresponding flow data.   Nutrient  loads  for the Socorro
          wastewater plant were calculated based  upon provided monthly
          effluent samples and estimated flow (0.3785 nr/capita/day).
A.   Waste Sources:
     1.   Known municipal
Name
Socorro
Albuquerque
#1
Albuquerque
#2
Bel en
Los Lunas
Pop.*
Served
5,000
130,000
140,000
6,500
1,800
Treatment*
Trickling
Filter
Trickling
Filter
Trickling
Filter
Trickling
Filter
Trickling
Filter
Mean Flow
(m3/d x 103)
1.892**
73.127
67.243
3.189
1.126
Receiving
Water
Luis Lopez Drain
to Rio Grande
Rio Grande
Rio Grande
Basque Drain
to Rio Grande
Rio Grande
     2.   Known industrial - None
     *Treatment plant operators.
    **Estimated at 0.3785 m3/capita/day.

-------
                                   14
 B.   Annual Total Phosphorus Loading - Average Year:

      1.   Inputs -
                                                             % of
           Source                             kg P/yr        total

           a.   Tributaries (nonpoint load) -

                A-2 Rio Grande               2,025,735        78.8
                B-l Alamosa River                    ?
                C-l Unnamed Tributary              100        <0.1
                E-l Unnamed Stream                   5        <0.1

           b.   Minor tributaries and immediate
                drainage (nonpoint load) -         475        <0.1

           c.   Known municipal STP's -

                Socorro                          6,870         0.3
                Albuquerque #1                 270,655        10.5
                Albuquerque #2                 250,255         9.7
                Belen                            7,890         0.3
                Los Lunas                        4,690         0.2

           d.   Septic tanks* -                      5        <0.1

           e.   Known industrial - None

           f.   Direct precipitation** -         2,590         0.1

                               Total         2,569,270       100.0%

      2.   Outputs - A-l Rio Grande             83,595

      3.   Net annual P accumulation -       2,485,675
 *Estimate based on 14 lakeshore residences.
**Estimated (See NES Working Paper No. 175).

-------
                                  15
 C.    Annual  Total  Nitrogen Loading  * Average Year:
      1.    Inputs       .   .
                                                             * of
           Source                             kg N/yr        total
           a.   Tributaries (nonpolnt load)  -
                A-2 R1o Grande                5,614,370      -77.5
                B-l Alamosa River                     ?
                C-l Unnamed Tributary             4,315        0.1
                E-l Unnamed Stream                  235,      :
-------
                                  16
D.   Mean Annual Nonpoint Nutrient Export by Subdrainage Area:

     Tributary                          kg P/km2/yr    kg N/km2/yr

     R1o Grande                              28             78
     Unnamed Tributary (C-l)                 18            757
     Unnamed Stream (E-l)                    <1              6

E.   Mean Nutrient Concentrations In Ungaged Streams:

                                        Mean Total P   Mean Total l\
     Tributary                             (mg/1)         (mg/1)

     0-1 R1o Grande Conveyance Canal        0.883          2.588

-------
                                  17
F.   Yearly Loadings:
          In the following table,  the existing  phosphorus  annual
     loading is compared to the relationship  proposed  by Vollenweider
     (1975).  Essentially, his "eutrophic"  loading  is  that at  which
     the receiving waters would become eutrophic  or remain eutrophic;
     his "oligotrophic"  loading is that which would result in  the
     receiving water remaining oligotrophic or  becoming oligotrophic
     if morphometry permitted.  A  "mesotrophic" loading would  be
     considered one between "eutrophic11 and "oligotrophic",
          Note that Vollenweider's model may  not  apply to  lakes with
     short hydraulic retention times  or in  which  light penetration is
     severely restricted by high concentrations of  suspended solids
     in the surface waters.
                             Total  Yearly
                          Phosphorus Loading
                               (q/mfyyr)
     Estimated loading for Elephant Butte Reservoir               17.35
     Vollenweider's "eutrophic"  loading                           0.56
     Vollenweider's "oligotrophic"  loading                        0.28

-------
                                  18
V.   LITERATURE REVIEWED

     Drypolcher, Tony.  1975.   Personal  communication (lake morphometry).
       New Mexico Environmental Improvement Agency,  Santa  Fe,  New Mexico.

     Martin, R, 0. R., and R.  L.  Hanson,   1966.   Reservoirs in the United
       States.  Geological Survey Water  Supply Paper 1838.   United
       States Department of Interior,  Washington, D.C,

     New Mexico Environmental  Improvement Agency.  1976.   Assessment  of
       the Impact of Albuquerque  Wastewater on the Trophic Status of
       Elephant Butte Reservoir,  Santa Fe, New Mexico.

     U.S. Environmental Protection Agency.  1975.  National  Eutrophica-
       tion Survey Methods 1973-1976.  Working Paper No. 175.   National
       Environmental Research  Center,  Las Vegas,  Nevada, and Pacific
       Northwest Environmental  Research  Laboratory,  Corvallis, Oregon.

     Vollenweider, R. A.  1975.  Input-Output Models With  Special
       Reference to the Phosphorus Loading Concept in Limnology.
       Schweiz. Z. Hydrol.  37:53-84.

-------
                                    19
VI.  APPENDICES
                              APPENDIX A'



                          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   = acre/feet
Square kilometers x 0.3861 = square miles
Cubic rnetcrs/sec x 35.315 = cubic feet/sec
Centimeters x 0.3937 = inches
Kilograms x 2.205 = pounds
Kilograms/square kilometer x 5.711 ~ Ibs/squarc mile

-------
    APPENDIX B



TRIBUTARY FLOW DATA

-------
LAKE COOE 3505
                TRIBUTARY FLOW INFORMATION FOR NEW MEXICO

ELEPHANT BUTTE RESERVOIR
                                                                                          03/08/77
TOTAL DRAINAGE AREA OF LAKE(SO KM)   76275.4


                             FE8
          SUB-DRAINAGE
TRIBUTARY  AREA(SO KM>
       JAN
MAR
              NORMALIZED FLOWS(CMS)
APR     MAY     JUN     JUL     AUG
                                                                                          SEP
           OCT
                                                                                       NOV
DEC
350 5A1
3505A2
350581
3505C1
3505E1
3505ZZ
76275.4
71742.9
1745.7
5.7
41.3
2737.6
18.07
17.27
0.085
0.000
0.0
0.51
22.14
21.52
0.045
0.000
0.000
0.62
27.38
26.62
0.045
0.000
0.001
0.76
54.76
53.24
0.065
0.000
0.001
1.53
112.16
109.02
0.040
0.000
0.001
3.14
93.81
91.18
0.068
0.000
0.0
2.63
33.81
32.56
0.283
0.001
0.019
0.96
22.74
21.24
0.680
0.001
0.023
0.65
17.47
16.71
0.224
0.001
0.008
0.48
20.10
19.26
0.238
0.001
0.007
0.57
17.78
17.27
0.022
0.0
0.001
0.51
18.94
18.41
0.040
0.0
0.0
0.54
                                                                   SUMMARY
                        TOTAL DRAINAGE AREA OF LAKE *   76275.4
                        SUM OF SUB-DRAINAGE AREAS   «   76273.1

     MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
                                                           TOTAL FLOW IN  »    459.10
                                                           TOTAL FLOW OUT -    459.19
TRIBUTARY   MONTH   YEAR
3505A1
         MEAN FLOW  DAY
         FLOW  DAY
3505A2
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
74
75
75
75
75
75
75
75
75
75
75
75
74
75
75
75
75
75
75
75
75
75
75
75
0.190
2.775
0.481
40.493
52.386
51.537
51.253
47.006
38.794
9.854
0.229
1.S01
3.964
14.158
22.087
16.707
10.477
74.473
55.218
30.582
4.021
31.998
0.054
0.680
7
5
2
1
4
1
7
8
2
6
4
1
7
4
1
1
4
1
7
8
1
6
4
1
0.139
0.280
0.156
0.396
61.164
48.705
56.067
46.723
47.289
23.899
0.170
0.340
13.451
12.743
18.802
19.312
0.0
97.693
54.935
39.360
0.0
75.606
0.0
0.0




19
17










19
17






                   FLOW  DAY
                                                                   51.253
                                                                   52.103
FLOW
                                                                    0.0
                                                                   69.943

-------
LAKE CODE 3505
                TRIBUTARY FLOa INFORMATION FOR NEW MEXICO

ELEPHANT Bt'TTE RESERVOIR
                                                                                           03/Q8/77»-
     MEAN MONTHLY FLOWS AND OAILV R_OBS
TRIBUTARY   MONTH   YEAR
3505B1
3505C1
350501
3505E1
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
74
75
75
75
75
75
75
75
75
75
75
75
74
75
75
75
75
75
75
75
75
75
75
75
74
75
75
75
75
75
75
75
75
75
75
75
74
75
75
75
75
75
75
75
75
75
75
75
         MEAN FLOW  DAY
0.008
0.071
0.045
0.040
0.042
0.034
0.057
0.538
0.283
0.510
0,057
0.051
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.113
0.011
0.006
0.0
0.0
0.0
6.513
23.220
19.255
20.671
30.299
5.097
5.437
4.559
39.644
0.0
0.0
0.000
0.001
0.000
0.001
0.0
0»037
0.010
0.020
0.002
0.001






7
a

6
4
1
7
5
2



7
8

6
4
2
7
4
1
1
4
1
7
8
1
6
4
1
7
5
2
1
4

6
8

6
4
2
                                                   FLOW  DAY
                               0.057
                               0.680

                               0.0
                               0.0
                               0.0
                               0.000
                               0.000
                               0.000
                               0.000
                               0.002

                               0.0
                               0.0
                               0.0
                               0.0
                               0.0
                               0.0
                               0.0
                              10.024
                              25.655
                              21.124
                              34.547
                              11*157
                               4.474
                               4.984
                               7.249
                               0.0
                               0.0
                               0.000
                               0.001
                               0.0

                               0.0
                               0.043

                               0.0
                               0.0
                               0.0
                                                  FLOW  DAY
                                                                                       FLOtf
                                                          19
                                                          17
24.919
18.293

-------
                                   TRIBUTARY Ff.OW INFORMATION FOR NEW MEXICO
                                                          03/08/77
LAKE CODE 3505     ELEPHANT BUTTE RESERVOIR

     MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)

TRIBUTARY   MONTH   YEAR    MEAN FLOW  DAY
3505ZZ
                   FLOW  DAY
FLOW  DAY
FLOW
12
1
2
3
4
5
6
7
8
9
10
11
74
75
75
75
75
75
75
75
75
75
75
75
0.116
0.425
0.651
0.680
0.963
2.690
2.180
1.812
0.280
1.104
0.139
1.189

-------
        APPENDIX C



PHYSICAL AND CHEMICAL DATA

-------
STORET RETRIEVAL f>ATE 76/13/16
NATL EUTROPrilCATION SURVEY
EPA-LAS VEGAS
 350501
33 09 17.0 107 11 38.0 3
ELEPHANT BUTTE RESERVOIR
35051   NEW MEXICO
/TYPA/AMBNT/LAKE
DATE TIME DEPTH
FROM OF
TO
75/05/02





75/08/19




75/10/03





DATE
FROM
TO
75/05/02





75/08/19




75/10/03




DAY
11 20
11 20
11 20
11 30
11 30
11 20
14 30
14 30
14 30
14 30
14 30
15 15
15 15
15 15
15 15
15 15

TIME
OF
DAY
11 20
11 20
11 20
11 20
11 20
11 30
14 30
14 30
14 30
14 30
14 30
15 15
15 15
15 15
15 15
15 15
FEET
0000
0005
0015
0035
005S
007B
0000
0005
0015
0045
0081
0000
0005
0015
0045
0075

DEPTH

FEET
0000
0005
0015
0035
0055
0078
0000
0005
0015
0045
0081
0000
0005
0015
0045
0075
00010
WATER
TEMP
CENT
13.7
12.9
11.9
11.3
10.7
10.5
25.5
25.0
34.8
23.6
20.9
21.6
21.0
20.9
20.8
20.7
00665
PHOS-TOT

MG/L P
0.051
0.051
0.048
0.042
0.054
0.097
0.067
0.062
0.062
0.102
0.303
0.083
0.085
0.083
0.081
0.087
00300 00077 00094
DO TRANSP CNDUCTVY
CECCHI FIELD
MG/L INCHES MICROMHO
9.8 43
9.0
8.4
8.6
7.6
7.0
7.0 48
5.8
5.8
1.6

6.2 24
5.4
4.8
5.2
5.4
32217 00031
CHLRPHYL INCDT LT
A RFMNING
UG/L PERCENT
5.1





7.8




1.3




573
689
671
659
657
719
631
624
619
609
595
566
551
544
544
544




















11EPALES 760109 04001002
0082 FEET DEPTH CLASS 00
00400 00410 00610 00625
PH T ALK NH3-N TOT KJEL
CAC03 TOTAL N
SU
8
8
8
8
8
8
fl
8
8
7
7
7
7
7
7
8





















.65
.70
.65
.60
.50
.40
.40
.45
.35
.95
.65
.80
.90
.90
.90
.05




















MG/L
161
162
161
161
161
158
123
123
132
136
136
131
132
134
134
135




















MG/L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0




















.020
.020
.020
.020
.030
.060
.020K
.030K
.030K
.020
.200
.020K
.020K
.020K
.020K
.020K




















MG/L
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.600
0.200
0.200
0.400
0.300
0.300




















                                                                                                       00630     00671
                                                                                                     N02&N03   PHOS-DIS
                                                                                                     N-TOTAL    ORTHO
                                                                                                       MG/L     MG/L P
                                                                                                        0.020K
                                                                                                        0.020K
                                                                                                        0.020K
                                                                                                        0.030K
                                                                                                        0.020K
                                                                                                        0.020K
                                                                                                        0.020K
                                                                                                        0.020K
                                                                                                        0.020K
                                                                                                        0.220
                                                                                                        0.120
                                                                                                        0.230
                                                                                                        0.240
                                                                                                        0.250
                                                                                                        0.250
                                                                                                        0.330
                                                 0.018
                                                 0.018
                                                 0.020
                                                 0.019
                                                 0.024
                                                 0.031
                                                 0.033
                                                 0.033
                                                 0.038
                                                 0.090
                                                 0.190
                                                 0.065
                                                 0.064
                                                 0.071
                                                 0.074
                                                 0.126
     K VALUE KNOWN TO BE LESS

-------
NATL EUTROPHICATION
EPA-LAS VEGAS
33 10 48.0 107  11 46.0  3
ELEPHANT 8UTTE  RESERVOIR
35051   NE* MEXICO
/TYPA/AMBNT/LAKE
11EPALES  760109     04001002
 0072 FEET  DEPTH   CLASS 00

DATE
FRO"
TO
75/05/02




75/08/19




75/10/03






TIME DEPTH
OF

DAY FEET
10 45
10 45
10 45
10 45
10 45
16 05
16 05
16 05
16 05
16 05
15 00
15 00
15 00
15 00
15 00
0000
0005
0015
0040
0068
0000
0005
0015
0030
0063
0000
0005
0015
0045
0075
00010
WATER
TEMP
CENT
12.4
12.3
11.7
11.3
10.9
25.8
25.2
24.2
24.0
21.8
21.0
20.7
20.7
20.6
20.5
00300
DO

MG/L
8.4
B.8
8.4
7.6
6.6
8.0
7.0
5.4
5.2
0.8
6.2
5.8
5.8
5.8
5.6
00077
TRANSP
SECCHI
INCHES
36




30




15




00094
CNDUCTVY
FIELD
MICROMHO
568
665
658
646
657
626
625
611
610
590
544
544
541
540
544
00400
PH

Si)
8.70
8.70
8.70
8.60
8.50
8.55
8.60
8.45
8.30
7.90
8.15
8.20
8.20
8.20
8.20
00410
T ALK
CAC03
MG/L
164
163
161
163
160
121
121
121
119
128
131
132
134
132
132
00610
NH3-N
TOTAL
MG/L
0.040
0.020
0.030
0.030
0.060
0.020K
0.020
0.020
0.060
0.060
0.020K
0.020K
0.020K
0.020K
0.020K
00625
TOT KJEL
N
MG/L
0.700
0.200
0.200
0.200
0.400
0.400
0.500
0.400
0.400
0.400
0.200
0.200
0.200
0.200
0.200
00630
N02&N03
N-TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.040
0.070
0.070
0.240
O.?00
0.200
0.190
0.190
0.190
00671
PHOS-OIS
ORTHO
MG/L P
0.026
0.021
0.031
0.024
0.023
0.045
0.048
0.059
0.066
0.140
0.060
0.067
0.065
0.062
0.063

DATE
FROM
TO
75/05/02




75/08/19




75/10/03





TIME
OF
DAY
10 45
10 45
10 45
10 45
10 45
16 05
16 05
16 05
16 05
16 05
15 00
15 00
15 00
15 00
15 00

DEPTH

FEET
0000
0005
0015
0040
0068
0000
0005
0015
0030
0063
0000
0005
0015
0045
0075
00665
PHOS-TOT

MG/L P
0.049
0.048
0.047
0.053
0.098
0.09B
0.088
0.092
0.094
0.158
0.081
0.083
0.083
0.081
0.087
32217 00031
CHLRPHYL INCOT LT
A RFMNING
UG/L PERCENT
7.2




11.2




1.9




    K VALUE KNOWN TO BE LESS
        THAN INDICATED

-------
STORET RETRIEVAL H)AT£ 76/12/16
NATL EUTROPHICATION SURVEY
EPA-LflS VEGiS
                                    350503
                                   33  12 23.0  107  H  35.0  3
                                   ELEPHANT BUTTE  RESERVOIR
                                   35051   NEW MEXICO
/TYPA/AMBNT/LAKE

DATE
FPO"
TO
75/05/02





TIME DEPTH
OF
DAY FEET
14 25 0000
14 25 0005
14 25 0015
14 25 0035
14 25 0060
00010
WATER
TEMP
CENT
13.2
13.1
12.2
11.8
11.3
                                 00300      00077
                                  00      TRANSP    O
                                          SECCHI    FIELD
                                 MG/L      INCHES    M]
                                    9.2
                                    9.0
                                    8.6
                                    8.0
                                    7.2
                                               38
                                    11EPALES   760109     04001002
                                    0064 FEET   DEPTH   CLASS oo
194
:TVY
i
'MHO
600
600
584
580
573
00400
PH

su
8.80
6.80
8.80
8.70
8.80
00410
T ALK
CAC03
MG/L
160
161
161
161
160
00610
NH3-N
TOTAL
MG/L
0.030
0.020K
0.020K
0.020
0.040
00625
TOT KJEL
N
MG/L
0.800
0.400
0.300
0.300
0.400
00630
N02&N03
N-TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020K
00671
PHOS-DIS
ORTHO
MG/L P
0.02ft
0.024
0.025
0.027
0.030
                      00665
  DATE   TIME DEPTH PHOS-TOT
  FROM    OF
   TO    DAY  FEET   MG/L  P

75/05/02 14 25 0000    0.064
         14 25 0005    0.052
         14 25 0015    0.057
         14 25 0035    0.048
         14 25 0060    0.052
  32217     00031
CHLRPHYL  INCDT LT
   A      REMNING
  UG/L    PERCENT

     7.4
    K VALUE KNOWN TO BE LESS
        THAN INDICATED

-------
STORET RETRIEVAL DATE 76/13/16
NATL EUTROPHICATION SURVEY
EPA-LAS VEGAS
 35050*
33 16 13.0 107 09 45.0  3
ELEPHANT BUTTE HESERVOIR
35051   NEW MEXICO
/TYPA/AM6NT/LAKE
  DATE   TIME DEPTH  WATER
  FROM    OF
   TO    DAY  FEET

75/05/02 15 00 0000
         15 00 0005
         15 00 0015
         15 00 0031
  DATE   TIME DEPTH
  FROM    OF
   TO    DAY  FEET

75/05/02 15 00 0000
         15 00 000?
         15 00 0015
         15 00 0031
11EPALES  760109     04001002
 0035 FEET  DEPTH  CLASS  00
0010
TER
EMP
ENT
14.Q
13.7
13.7
12.9
0665
S-TOT

/L P
0.084
0.111
0.097
0.129
00300
DO

M6/L
8.2
7.6
7.6
7.2
32217
CHLRPHYL
A
UG/L
9.7



00077
TRANSP

-------
STORET RETRIEVAL.DATE 76/12/16
NATL EUTBOPHICATION SURVEY
EPA-LAS VEGAS
 350505
33 12 51.0 107 09 48.0  3
ELEHHANT BUTTE RESERVOIR
35051   NEW MEXICO
                                                                  11EPALES  760109     04001003
                                                                   0053 FEET  OEPTn  CLASS  00
  DATE   TI"E DEPTf
  FROM    OF
   TO    DAY  FEET

75/08/19 15 40 0000
         15 40 0005
         15 40 0015
         15 40 0030
         15 40 004R
75/10/03 14 45 0000
         14 45 0005
         14 45 0015
         14 45 0035
         14 45 0051
00010
*ATER
TEMP
CENT
36.3
25.3
24.7
24.3
23.6
20.9
20.9
20.6
20.6
20.5
no3oo
DO

MG/L
8.2
7.0
5.4
3.6
2.0
7.0
6.0
6.2
6.4
6.4
00077
TRANSP
SECCHI
INCHES
18




14




00094
CNDUCTVY
FIELD
MICROMHO
633
621
624
629
614
546
545
544
551
568
00400
PH

SO
8.60
8.70
ft. SO
8.20
8.00
8.40
ft. 35
8.40
8.40
8.40
00410
T ALK
CAC03
MG/L
127
119
120
122
127
129
132
132
134
133
00610
NH3-N
TOTAL
MG/L
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.020K
0.030
0.040
0.030
00625
TOT KJEL
N
MG/L
0.400
0.400
0.300
0.400
0.500
0.400
0.400
0.400
0.500
0.200
00630
N02&N03
N-TOTAL
MG/L
0.020K
0.040
0.080
0.190
O.?20
0.1-50
0.160
0.130
0.140
0.140
00671
PHOS-OIS
0»TnO
MG/L P
0.045
0.047
0.059
0.034
0.120
0.054
0.056
0.057
0.06?
O.OSfc

DATE
FROM
TO
75/08/19




75/10/03





TIME DEPTH
OF
DAY FEET
15 40 0000
15 40 0005
15 40 0015
15 40 0030
15 40 004fl
14 45 0000
14 45 0005
14 45 0015
14 45 0035
14 45 0051
00665
PHOS-TOT

MG/L P
0.118
0.082
0.099
0.120
0.171
0.083
0.080
0.084
0.086
0.09?
32217
CHLRPHYL
A
UG/L
9.4




3.6




00031
INCDT LT
RFMNING
PFKCENT










     K VALUE KNOWN TO BE LESS
         THAN INDICATED

-------
STOOET RETBIEVAL DATE  76/13/16
NATL EUTROPHICATION SURVEY
EPA-LAS V?<3AS
 350506
33 ir 42.0 107  09  37.0 3
ELEPHANT BUTTE  RESERVOIR
35051   NEW MEXICO
/TYPA/AMBNT/t_A
                                          SECCHI   FIELD
                                 MS/L      INCHES   Ml

                                   7.0          6
                                   6.4
                                   5.4
                                   8.4          8
                                   8.0
                                   7.0
11EPALES  760109     04001002
 0023 FEET  DEPTH   CLASS 00
94
TVY
1
'MHO
667
650
677
563
559
681
00400
PH

su
8.60
8.60
8.45
8.60
8.60
8.50
00410
T ALK
CAC03
MG/L
129
132
13*
127
130
133
00610
NH3-N
TOTAL
MG/L
0.020K
0.020K
0.030
0.020K
0.020K
0.020K
006*5
TOT KJEL
N
MG/L
0.400
0.400
0.400
0.600
0.400
0.400
00630
M02&N03
N-TOTAL
MG/L
0.080
0.100
0.120
0.090
0.120
0.120
00671
PHOS-OIS
ORTHO
MG/L P
0.056
0.062
0.073
0.038
0.050
0.050

DATE
FROM
TO
75/08/19


75/10/03



TIME DEPTH
OF
DAY FEET
15 20 0000
15 20 000^
15 20 0019
14 20 0000
14 20 0005
14 20 0010
00665
PHOS-TOT

MG/L P
0.097
0.110
0.102
0.078
0.098
0.109
32217
CHLRPHYL
A
UG/L

-------
       APPENDIX D

TRIBUTARY AND WASTEWATER
  TREATMENT PLANT DATA

-------
STORET RETRIEVAL DATE
NATL EUTROPHI'CATION SURVEY
EPA- LAS VEGAS
 3505A1
33 09 13.0 107 11 30.0 *
RIO GRANDE
35      7.5 ELPHNT BUTTE
0/ELEPHANT BUTTE RES     120991
BELO DAM 3.2 MI NE OF TRUTH OR CONSOUECS
11EPALES             211120*
 0000 FEET  DEPTH  CLASS 00
DATE
FROM
TO
74/12/07
75/01/05
75/02/02
75/03/01
75/04/04
75/04/19
75/05/01
75/05/17
75/06/07
75/07/08
75/08/02
75/09/06
75/10/04
75/11/01
75/11/02
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET MG/L
11

10
16
09
17
15
16
10
12
14
14
09
10
10
45

45
30
50
00
20
15
00
40
20
00
00
30
30
0.032
0.068
0.008
0.005
0.010
0.005
0.005
0.005
0.015
0.200
0.210
0.080
0.240
0.220
0.165
MG/L
0.700
0.700
1.100
0.350
0.350
0.400
0.650
2.400
0.450
1.100
0.450
0.400
0.600
1.200
0.700
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.060
0.032
0.024
0.045
0.020
0.020
0.030
0.050
0.085
0.035
0.055
0.070
0.035
0.035
0.015
MG/L P
0.020
0.012
0.005
0.010
0.015
0.020
0.020
0.025
0.035
0.075
0.120
0.100
0.075
0.060
0.105
MG/L P
0.080
0.035
0.030
0.020
0.030
0.040
0.050
0.040
0.060
0.130
0.120
0.130
0.210
0.130
0.420

-------
NATL EUTRQPMICATION SURv/EY
EPA- LAS VEGAS
  DATE   TIME DEPTH N02S.N03
  FROM    OF
   TO    DAY  FEET

74/13/07 15 00
75/01/04 11 30
75/02/01 10 30
75/03/01 11 30
75/05/01 09 50
75/05/17 11 30
75/06/07 14 00
75/09/06 09 30
33 41 10.0 1C6 59 10.0 4
RIO GHANDE
35      SOCORRO CO MAP
T/ELEPHANT BUTTE RES     120991
RP BRDG 1 MI S OF SAN MARCIAL
11EPALES             2111204
 0000 FEET  DEPTH  CLASS 00
0630
8.N03
OTAL
G/L
0.570
0.360
0.672
0.630
0.330
0.310
0.290
0.010
00625
TOT KJEL
N
MG/L
2.050
2.200
2.200
2.500
6.000
4.400
1.000
22.000
00610
NM3-N
TOTAL
MG/L
O.OBO
0.288
0.072
0.105
0.032
0.070
0.025
0.680
00671
PHOS-OIS
OP.THO
MG/L P
0.410
0.405
0.375
0.420
0.505
1.950
0.150
0.005
00665
PHOS-TOT

MG/L P
1.450
1.512
1.350
1.000
3.100
4.100
o.aoo


-------
STO&ET RETRIEVAL D»TE  76/13/16
NATL EUTROPrllCATIGN SU«VEY
EP*- LAS VEGA*  "  -
  DATE   TIME DEPTH N02&H03
  FROM    OF
   TO    DAY  FEET

74/12/07 10 30
75/01/05
75/02/02 09 45
 3505C1
33 08 42.0 107  D9 37.0 4
UNNAMED TRIBUTARY
35      7.5 ELPHNT BUTTE
T/ELEPHANT BUTTE RES      120991
JOSE CYN BNK .5 Ml N OF HWY 52
HEPALES             2111204
 0000 FEET  DEPTH  CLASS  00
0630
S.N03
OTAL
6/L
0.01*
0.096
0.112
00625
TOT KJEL
N
MG/L
0.900
0.200
0.300
00610
NH3-N
TOTAL
MG/L
0.020
0.008
0.008K
00671
PHOS-DIS
ORTHO
MG/L P
0.020
0.017
0.020
00665
PHOS-TOT

MG/L P
0.025
0.035
0.025
      K VALUE KNOWN TO BE LESS
          THAN INDICATED

-------
STOREY RZYSIEVA;. DATE 76/:z/i6
N&TL EUVRO^HJCftTZO
EPft- LAS 'JEG&S
FROM
 TO
         TIHE DEPTH
          OF
         DAY  FEET
75/04/04 06 30
75/04/19 10 50
7S/05/G1 09 00
75/05/17 13 00
75/06/07 14 30
75/07/08 10 40
75/08/01 12 00
75/09/06 10 00
75/10/04
                                                                 3SC5D1
                                                                32  01  3C3G  r,03 5v CSoG
                                                                        SGCCB33 C
                                                                           BU7VE KES
                                                                  S  BRD6 1  HI  S C
                                                                                           r.2SS9i
                                                                   6Q30  FEET  DEPTH  CLASS C3
0630
!^N03
OTAL
'G/L
0.490
0.525
0.315
0.200
0.195
0.213
0.2&0
0.070
0.055
00685
TOT KJEL
N
MG/L
2.500
1.700
3.300
3.600
1.150
1.300
4.100

0.800
006. 1C
NH3-M
TOTAL
MG/l.
0.030
O.S30
3.S25
0,025
O.CH5
0.019
0.025
O.C2G
0.015
G367I
PKOS-OIS
ORTHO
MG/L P
0.330
0.270
0,150
0.135
0.145
0.155
0.135
C.090
0.075
00665
PHOS-TOT

MG/l. P
0.330
0.980
1.800
1.158
0.650
oas*o


0.210

-------
STORE! RETKIEVAL  0«TE  76/12/16
NATL EUTROPHiCAT-lON,, SURVEY
EPA- LAS VEGAS
  DATE   TIME DEPTH N02fcN03
  FROM    OF
   TO    DAY  FEET

74/12/07 09 30
75/01/05
75/02/02 08 45
75/03/01 10 00
75/04/04 09 30
 3505E1
33 08 05.0 107  10  45.0  4
UNkAMED STREAM
35      7.5 ELPHNT BUTTE
T/ELEPMANT 9UTTE RES      120991
Ht»Y 52 XING 1.3 MI  SSE  OF  *TR TANK HILL
11EPALES              2111204
 0000 FEET  DEPTH   CLASS  00
0630
t.N03
OTAL
IG/L
0.016
0.016
0.008
0.005
0.007
00625
TOT KJEL
N
MG/L
0.600
0.667
1.700
0.400
0.300
00610
NH3-N
TOTAL
MG/L
0.010
0.008
0.008
0.030
0.015
00671
PHOS-DIS
ORTHO
MG/L P

0.012
0.010

0.010
00665
PHOS-TOT

MG/L P
0.010K
0.017
0.010
0.020
0.010
   K VALUE KNOWN TO BE LESS
        THAN INDICATED

-------
STO-
                                                    SOCORRO
                                                    35       7.5 sOCOPRO
                                                    T/ELEPHAM BUTTE -iES.     1^0491
                                                    LUIS LOPtZ 0«AIN TO RIO GRANDE
                                                    lltPALES            0000100*
                                                     0000 FEET  OEf-TH  CLASS  00

DATE
F30'*
TO
74/12/03
75/01/06
75/02/06
75/03/04
75/04/01
75/05/2?
75/06/23
7^/07/lQ

TIME DEPTH-
OF
OAY FEET
08 25
08 30
08 36
08 20
08 10
08 TO
14 0"!

O'.i^TO
MO?;>NG3
N-TuTAL
«*
-------
DeTF. TIv£ OEHT- ND2isN03 TOT KJEL
KOQM
TO
74/12/1*.
CP(T)-
74/12/17
75/01/22
CP m-
75/01/22
7b/0?/£4
Ct-(T)-
75/02/25
75/03/12
CP(T>-
75/03/13
75/04/21
CP(T>-
75/04/22
75/05/26
CP (T) -
75/05/27
75/07/30
CP (T)-
75/07/31
75/09/08
CP"5Afi
                       .13 01 10oO 106 40 00.0 «•
                                                      "130000
OOM"
                       J5      7.5ALBUQUERQUE  4
                       T/E.LEPiA.
-------
                  77/0?/l«
-iuT-OP-iICATIO--.
 J505AC           TFSSObAC     P14QOOO
35 03 45.0  106  3" 15.0 4
ALBUQUEauUt «*2
IS      7.0AL8UUUERQUF. a
T/ELEPr>AMT  dUTTt  HES.    120991
RIO GRANDE
11EPALES             00001004
 POOO FEET  DEPTH  CLASS 00
OaTF.
TO
74/12/16
CP(T)-
74/12/17
75/fl 1 /22
CP(T) -
75/01/22
75/0-
75/07/31
75/09/08
<~P (T) -
74/09/09
75/09/29
CP(T)-
75/09/30
75/10/08
CPU)-
75/10/09
75/11/24
CP(T) -
75/11/25
U«E OEf-T-
0?
DAY FEET
10 00
06 00
00

?4
10

06
10

06
10

06
10

06
10

06
10

06
10

06
10

06
10

06
00

00
on

00
00

00
oo

on
00

00
00

00
00

on
00

00
00

00
0"

00
• NO?-,NO? TOT KoEL
N- TOTAL N
Mfi/L MG/L
0.160 27.000

O.OHO 32.000


O.?40 ?9.000


0.240 31.000


0.300 37.000


0.15Q 12.000


0.200 23.000


0.350 ??.000


0.150 26.000


0.325 2?. 000


0.075 24.000

00610 00671 00665
•"nl-N PnOS-OIS P->OS-TUT
TOTAL o^Tno
MG/L MG/L P rlG/L P
1".50Q 9.900

15.200 11


14.400 6.200 10


15.200 8.100 9


1ft. «00 11.000 14


4.200 6.100 7


9.000 8.180 9


9.950 9.62S 10


10.50U 10.000 11


8.600 8.800 9


15.000 9.500 11


.500


.500


.700


.000


.200


.000


.noo


.800


.800


.000

50051 50053
FLO* CONDUIT
HATE FLOO-MGD
INST MGO MONTHLY
20.000 20.000

ie.


18.


19.


14.


18.


20.


11.


15.


16.


16.


700


600


100


000


800


800


500


000


000


500


19.


18.


18.


18.


17.


20.


15.


1*.


16.


16.


400


900


800


000


500


600


400


300


300


200


-------
          £r- i 5
/ A s M N T / S T ~ £1 '*
                                                                  3-»05AO          TF 350540
                                                                 34 3* 29.0 106 40 19.0 4
                                                                 BELEN
                                                                 35      7,5 HELEN
                                                                 T/tLtPHAxIT 8UTTE HES.
                                                                 HOSQUE O^AlfM TU rtIO GSANOE
                                                                 HEPALtS            0000100&
                                                                  0000 FEET  DEfTM  CLASS 00
DATE
FuO---.
 TO
         TIME OEPT.,
          OF
         DAY
74/12/02 09 00
75/01/01 09 00
75/02/01 09 00
75/03/03 09 00
7S/03/31 10 30
75/04/30 13 00
7^/07/01 10 00
75/Od/Ol 10 00
75/08/29 10 00
75/10/01 10 00
75/10/31 14 on
75/11/30 14 00
: 0 fr 3 3
AN03
OTAL
Kj/L
P.J20
l.«.80
3.120
0.080
2.000
0.750
0.750
0.7bO
1.400
1.500
) .880
1.700
1.570
00ft?a
TOT KJtL
•^
MG/L
1*3.000
1^.000
24.000
14.500
16.000
30.000
Ib.SOO
12.^00
15.5UO
12.500
11.500
19.000
19.000
OOMO
N|n3— M
TOTAL
Mti/L
1.60U
2.200
6.600

2.70Q
6.000
1 .050
0.210
0.226
0.260
0.050
4.10Q
0.240
00671
PHOS-OIS
OKTHO
M3/L P
6.700
6.900
5.300

4.320
5.600
5.850
4.400
4.700
4.000
4.700
5.100
5.900
00665
OHOS-TOT

MG/L P
9.700
8.450
7.700
6.700
5.500
8.700
5.850
5.300
5.650
4.700
5.100
6.200
7.800
50051
FLOW
PATE
INST MGD
0.600
0.600
0.600
0.600
0.600
0.600
0.760
0.760
0.760
0.760
0.760
0.760
2.280
50053
CONDUIT
FLO»-MGD
MONTHLV
0.600
0.700
0.700
0.700
0.700
0.700
0.700
0.700
0.785
0.786
0.760
2.360
0.760

-------
                 itTt  7//0?/ln
EPA- LA?
/ A>".-
    3505*t          TF3505AE
   34 46 03.0 10ft 43 09.0 4
   LOS L'JNAS
   35      7.5 LOS LUNftS
           NT >iUTTE -*tS.    130991
       GRANOE
   11EPALES            OOOOlOOo
    0000 FEtT  OEMTH  CLASS 00

DflT£
FHO"I
TO
7-
75/02/03
75/03/03
CP(T).
75/H3/03
75/04/07
CP(T)-
75/04/07
75/05/08
CP(T>-
75/05/08
75/07/07
CP(T)-
75/1)7/07
75/08/26
CPIT)-
75/08/26

T I"
OF
DAY
09

16
09

16
n*

16
09

16
09

16
09

16
09

16
09

16

E OEPT-

FFET
on

O'l
on

on
on

on
on .

0"
on

on
Ou

Or
on

on
on

on
10630
fMO?\M03
N-TGTAL
M(, /L

17,ftOO


13.600


13.600


17.ftno


1.92n


1ft. 500


7.300


14.000

00625
TOT KJF.L
^
"6/L

4.200


3.750


l.OOOK


1.200


1.600


1.900


*.800


1.200

                                          00^10     006T1     00ftft5     50051     50053
                                         MH3-N    PHOS-OIS  OHOS-TOT    FLO*    CONDUIT
                                         TOTAL     oxtno                RATE    FLO
                                                   *G/L P    MG/L H   INST MGO  MONTHLY
                                           0.110    14.500    14.500     0.350      0.350
                                           n.110    10.500    12.300
                                           O.OSOK   13.700    14.000
                                           O.
-------
                            APPENDIX E

                   PARAMETRIC RANKINGS OF LAKES
                      SAMPLED BY NES IN 1975

                        STATE OF NEW MEXICO
     Mean or median values for six of the key parameters evaluated
in establishing the trophic conditions of New Mexico lakes  sampled
are presented to allow direct comparison of the ranking, by parameter,
of each lake relative to the others.   Median total  phosphorus,
median inorganic nitrogen and median  dissolved orthophosphorus
levels are expressed in mg/1. Chlorophyll a_ values  are expressed
in yg/1.  To maintain consistent rank order with the preceding
parameters, the mean Secchi disc depth, in inches,  is subtracted
from 500.  Similarly, minimum dissolved oxygen values are subtracted
from 15 to create table entries.

-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE  LAKE NAME
0812  NAVAJO RESERVOIR
3501  ALAMOGORDO
3502  BLUE WATER LAKE
3503  CONCHAS RESERVOIR
3504  EAGLE NEST LAKE
3505  ELEPHANT BUTTE RESERVOIR
3506  EL VAOO RESERVOIR
3507  LAKE MACMILLAN
3509  UTE RESERVOIR
MEDIAN
TOTAL P
0.025
0.025
0.036
0.020
0.181
0.083
0.034
0.097
0.021
MEDIAN
INOR6 N
. 0.130
0.050 .
0.140
0.040
0.070
0.110
0.140
0.045
0.040
500-
MEAN SEC
420.92.8
469.667
480.125
451.833
455.750
475.750
466.444
489.778
448.750
MEAN
CHLORA
2.164
5.867
3.867
3.275
13.357
6.758
2.189
14.133
3.242
15-
MIN DO
11*200
10.600
11.400
14.400
14.400
T4.200
12.600
10.100
13.800
MEDIAf
DISS ORTHC
0.009
0.003
0.012 •
O.JJ04
0.132
o.ofs
0.014
0,00?
0.004

-------
PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE  LAKE NAME
0812  NAVAJO RESERVOIR
3501  ALAMOGOROO
3502  BLUE WATER LAKE
3503  CONCHAS RESERVOIR
3504  EAGLE NEST LAKE
3505  ELEPHANT BUTTE RESERVOIR
3506  EL VADO RESERVOIR
3507  LAKE MACMILLAN
3509  UTE RESERVOIR
MEDIAN
TOTAL P
63 (
75 (
38 (
100 (
0 (
25 {
50 (
13 (
88 (
5)
6)
3)
8)
0)
2)
4)
1)
7)
MEDIAN
INORG N
25 (
63 (
6 (
94 (
50 (
38 (
6 (
75 (
94 (
2)
5)
0)
7)
4)
3)
0)
6)
7)
500-
MEAN SEC
100 i
38
13
75
63
25
50
0
88
( 8)
( 3)
( 1)
( 6)
( 5)
( 2)
( 4)
( 0)
( 7)
MEAN
CHLORA
100 (
38 (
50 (
63 t
13 (
25 (
88 (
0 (
75 (
8)
3)
4)
5)
1)
2)
7)
0)
6)
15-
MIN
75 (
88 (
63 (
6 (
6 (
25 (
50 (
100 (
38 (
DO
6)
7)
5)
0)
0)
2)
4)
8)
3)
MEDIAN
DISS ORTHO
56 (
100 (
38 (
ai (
0 (
13 (
25 <
56 (
81 (
4)
8)
3)
6)
0)
1)
2)
4)
6)

-------