USGS

Magmatic Carbon Dioxide Emissions at Mammoth Mountain, California

By Christopher D. Farrar, John M. Neil, and James F. Howle

U.S. GEOLOGICAL SURVEY
Water-Resources Investigations report 98-4217
Sacramento, California 1999


Table 3. Chemical analyses of water samples from Mammoth Mountain area, California
[Site, alphanumeric designation given in figure 2 and site type; Station No., U.S. Geological Survey site identifier; °C, degrees Celsius; µS/cm, microseimens per centimeter; mg/L, concentration in milligrams per liter; µg/L, concentration in micrograms per liter; -, no data]
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                                         Depth    Altitude   Temp-  Spec-  Spec-    pH     pH    1alka-
                                          of      of land   erature ific   ific    water  water  linity,
Site        Station no.          Date    sample   surface    water conduc conduc- whole  whole   field,
                                          (m)     (meters    (°C)   tance, tance,  field  lab   as CaC03
                                                 above sea           field   lab    (std  (std    (mg/L)
                                                   level)          (µS/cm) (µS/cm) units) units) 
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HSL         373629119010801    10-20-94    14      2,745     7.0      17     22     6.7    6.9     10
 Lake 
                               06-06-95    18      2,745     4.1      51     34     6.9    6.9     30
                               06-06-95    10      2,745     3.8      31     26     6.4    6.4     10
                               07-17-96    18      2,745     5.1      17     19     6.4    7.0      9
HSL-1       373650119011301    07-18-96    94      2,755    10.0     147     48     5.3    5.4     73
 Monitor well
                               08-18-97    94      2,755    12.0     131    136     5.3    5.5     66
LB-1        373634119004801    10-17-95    78      2,740     6.0     158    166     7.0    7.2     82
 Supply well
                               07-18-96    78      2,740     5.0     189    191     7.0    6.6     98
                               08-19-97    78      2,740     5.5     163    170     7.1    6.9     89
CHI IA      373846119023101    07-18-96    59      2,760     4.5     163    170     5.1    5.2     80
 Monitor well
                               08-19-97    59      2,760     5.0     162    163     5.0    5.3     68
MMSA-I      373904119021501    11-03-95    36      2,720     4.5     276    291     5.7    5.8     91
 Supply well
MMSA-2      373901119012901    11-02-95   100      2,650     5.5     256    269     5.7    5.8    112
 Supply well 
MCL         373708119040601    07-14-94     0      2,420     8.0     265    271     5.7    5.6    128
 Unused spring

1Alkalinity, field, titration to 4.5 pH.

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                                         2Alka-     3Alka-  Bicarb-        Nitrogen,        Phos-   
                                         linity,    linity, onate, Nitrogen  ni-   Nitrogen phorus
                                          field,     lab,    water ammonia  trite,  NO2+NO3,ortho, Calcium
Site        Station no.          Date    as CaCO3  as CaCO3  whole  diss-   diss-    diss-  diss-   diss-
                                          (mg/L)    (mg/L)   field  olved   olved    olved  olved   olved
                                                             (mg/L) (mg/L)  (mg/L)   (mg/L) (mg/L)  (mg/L)
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HSL         373629119010801    10-20-94    10         11      12    0.023   0.003   <0.005 <0.001    2.2
 Lake 
                               06-06-95    31         16      38     .419   <.001     .007  <.001    3.4
                               06-06-95    11         12      12     .007   <.001     .057  <.001    2.6
                               07-17-96     8          8.7     9     .013    .002    <.005   .002    1.8 
HSL-1       373650119011301    07-18-96    70         73      89     .020    .010     .110   .040   11
 Monitor well
                               08-18-97    62         69      81    <.015   <.010     .098   .041    9.7
LB-1        373634119004801    10-17-95    82         84     101       --      --       --     --   17
 Supply well
                               07-18-96    98         98     120     .030   <.010     .090   .050   20
                               08-19-97    90         88     109     .073   <.010     .102   .042   18
CHI IA      373846119023101    07-18-96    70         80      98     .020    .010     .170   .120   13
 Monitor well
                               08-19-97    59         80      83    <.015   <.010     .159   .113   12
MMSA-I      373904119021501    11-03-95    94         97     115    <.015    .010    3.40    .020   15
 Supply well
MMSA-2      373901119012901    11-02-95   114        122     138    <.015   <.010    2.40    .170   12
 Supply well 
MCL         373708119040601    07-14-94   132        134     161    <.010   <.010    <.050   .130   14
 Unused spring
 
2 Alkalinity, field, incremental titration.
3 Alkalinity, lab, titration to 4.5 pH.

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                                         Mag-              Potas-  Chlor-    Sul-   Fluor-   Sil-    Ar-
                                        nesium,   Sodium,   sium,   ide,     fate,   ide,    ica,   senic,
Site        Station no.          Date    diss-     diss -   diss-  diss-     diss-   diss-   diss-  diss-    
                                         olved     olved    olved  olved     olved   olved   olved  olved                           
                                        (mg/L)     (mg/L)  (mg/L)  (mg/L)   (mg/L)  (mg/L)  (mg/L)  (µg/L)
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HSL         373629119010801    10-20-94  0.34       1.4     0.30    0.10     0.30    0.10    4.6   <1
 Lake
                               06-06-95   .51       1.4      .50     .30     <.10     .20    6.5   <1
                               06-06-95   .41       1.3      .40     .20      .50     .10    5.4   <1
                               07-17-96   .29       1.0      .30    <.10      .40    <.10    5.2   <1
HSL-1       373650119011301    07-18-96   6.4       6.2     6.7     <.10      .30     .10   55     <1
 Monitor well
                               08-18-97   5.9       5.6     5.7     <.10      .30     .13   55     <1
LB-1        373634119004801    10-17-95   4.9       7.3     4.4      .50      .80    <.10   32     <1
 Supply well
                               07-18-96   5.8       8.5     5.3      .60      .80    <.10   33     <1
                               08-19-97   5.2       7.7     4.8      .57      .67    <.10   34     <1
CHI IA      373846119023101    07-18-96   8.9       6.0     3.7      .90     2.3      .20   37     <1
 Monitor well
                               08-19-97   8.8       5.8     3.6	    5.5      1.7      .22   37     <1
MMSA-I      373904119021501    11-03-95  11        17       8.5    19        2.6     <.10   43     <1
 Supply well
MMSA-2      373901119012901    11-02-95   7.3	   30       3.7     4.7      2.2     <.10   50     <1
 Supply well 
MCL         373708119040601    07-14-94  13        15       8.6      .30     9.2      .10   65      1
 Unused spring


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                                                          Manga-           Solids   Mer-  H2/H1  O-18/O16	
                                        Boron,	 Iron,    nese,  Lithium, residue   cury, stable  stable
Site        Station no.          Date   diss	 diss     diss	  diss	  at 180°C  diss- isotope isotope
                                        olved    olved    olved   olved  dissolved olved  ratio   ratio
                                        (µg/L)   (µg/L)   (µg/L)  (µg/L)   (mg/L)  (µg/L)  (per    (per
                                                                                           mil)    mil)   
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HSL         373629119010801    10-20-94  <10       47       4.0   <10        6      <0.1    96.4  -12.40
 Lake 
                               06-06-95  <10       --      --     <10       28       <.1    --    -12.70
                               06-06-95  <10       88       3.0   <10       10       <.1    --    -11.61
                               07-17-96  <4.0      12      <1.0    --       13      --      --    -13.63
HSL-1       373650119011301    07-18-96  12        35      46      --      100      --      --    -14.04
 Monitor well
                               08-18-97  11        14      40      --      148      --      --     --
LB-1        373634119004801    10-17-95  <10       <3.0   <1.0    <10       98       <.1    --    -14.90
 Supply well
                               07-18-96  6.7       <3.0   <1.0     --      114      --      --    -14.65
                               08-19-97  8.9       <3.0   <1.0     --      125      --      --     --
CHI IA      373846119023101    07-18-96  4.2       19     91       --       98      --      --    -14.58
 Monitor well
                               08-19-97  8.9       41    104       --      122      --      --     --
MMSA-I      373904119021501    11-03-95  20         7.0  180       70      184      --      --    -14.86
 Supply well
MMSA-2      373901119012901    11-02-95  20         5.0	   6.0    150      176      --      --    -15.09
 Supply well 
MCL         373708119040601    07-14-94  20         5.0    3.0     50      182       <.1    --     --
 Unused spring
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