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Stream flow monitoring station

Chehalis River @ Centralia

This station is also a water quality monitoring station

Station details

ID23A120
typeTelemetry  satelite dish   
Latitude46° 42' 47.16"
Longitude-122° 58' 39.36"
Stream class
River mile66.0
Staff leadBrad Hopkins
brad.hopkins@ecy.wa.gov
CountyLewis
Ecoregion
Period of recordFeb 2016 - Present
Water Resource Inventory Area (WRIA)
11 active stations   show historical 
  id station name type* coop
23A120 Chehalis River @ Centralia T
23A190 Chehalis abv Pe Ell T
23B070 Newaukum NR Chehalis T
23B120 SF Newaukum River @ Jorgensen ... T y
23B190 South Fork Newaukum River @ No... T y
23E060 Black R. @ Hwy 12 T
23H060 Salzer Creek @ Airport Rd T
23I070 Bunker Creek @ Ceres Hill Rd T
23J070 Stearns Creek @ Twin Oaks Rd T
23K060 South Fork Chehalis @ Hwy 6 T
23L070 Dillenbaugh Creek at Riverside... T y
*  T–telemetry   SA–stand alone   MSH–manual stage height

Station 23A120—Water Temp.

Period of Record: 2016 — 2018

Seven-day graph

Water-year graph

Mean data table


Note: To print table on one page, change page setup to landscape orientation. Adjustment of page margins and/or text size may also be required.

         Washington State Dept. of Ecology                                                            HYDAY V139  Output 09/15/2019

         Site     23A120          Chehalis River @ Centralia                                                   Site       23A120.AT
         Variable 450.30          Water Temperature in Degrees Celsius, Sonde Temp                             Year         2018/19
                                  Figures are for period starting 00:00                                        Table Type     Level

         Day       Oct      Nov      Dec      Jan      Feb      Mar      Apr      May      Jun      Jul      Aug      Sep     Day

           1       16.3!    10.5!     7.9!     5.5!     5.6!     4.1!    10.8!    13.2!    20.3!    20.9!    23.9!    21.4!     1
           2       16.1!    11.4!     7.3!     5.0!     6.6!     5.2!    10.9!    13.3!    20.8!    20.5!    23.9!    21.8!     2
           3       15.7!    11.9!     6.6!     5.6!     7.1!     5.7!    11.0!    13.3!    21.0!    20.6!    23.8!    22.2!     3
           4       15.5!    11.5!     5.6!     7.1!     6.2!     5.2!    11.1!    13.6!    20.9!    20.9!    23.8!    22.0!     4
           5       14.9!    11.2!     4.3!     7.6!     4.5!     4.3!    11.0!    14.3!    20.4!    20.9!    24.1!    21.6!     5
           6       14.6!    10.3!     3.2!     7.1!     3.2!     3.7!    10.7!    15.6!    19.7!    20.7!    24.1!    21.5!     6
           7       13.6!     9.9!     2.2!     6.5!     2.4!     3.5!    10.5!    16.7!    19.1!    20.2!    24.0!    21.1!     7
           8       12.9!     9.2!     1.9!     5.8!     1.8!     3.8!    10.1!    17.4!    18.5!    20.3!    23.6!    20.9!     8
           9       12.5!     8.0!     2.7!     6.1!     1.7!     4.2!    10.6!    18.0!    17.7!    20.3!    23.3!    20.5!     9
          10       12.6!     7.1!     4.1!     7.3!     1.9!     4.7!    10.0!    18.5!    17.7!    20.0!    23.4!    20.2!    10
          11       12.8!     6.6!     5.4!     8.0!     1.8!     4.9!     9.4!    19.2!    19.1!    20.1!    23.0!    19.5!    11
          12       13.2!     6.4!     6.5!     7.4!     1.8!     5.1!     9.5!    19.5!    20.1!    20.3!    22.8!    19.4!    12
          13       13.4!     6.2!     7.1!     6.5!     3.6!     5.6!     9.9!    19.3!    21.5!    20.8!    22.9!    19.5!    13
          14       13.2!     5.9!     7.4!     5.6!     4.5!     6.3!     8.9!    18.4!    21.8!    21.1!    22.9!    19.2!    14
          15       13.0!   [   ]X     7.2!     4.8!     4.6!     6.7!     8.5!    17.4!    22.1!    21.6!    22.9!   [   ]     15
          16       12.8!     6.7!     6.9!     4.4!     5.3!     7.4!     9.1!    16.4!    22.5!    21.8!    22.4!   [   ]     16
          17       12.6!     7.2!     7.7!     5.2!     5.1!     7.7!     9.8!    15.7!    22.2!    21.8!    22.0!   [   ]     17
          18       12.2!     7.6!     8.1!     6.5!     4.9!     8.1!    10.8!    15.5!    21.5!    21.9!    22.1!   [   ]     18
          19       11.9!     7.5!     8.1!     7.1!     5.1!     8.3!    11.7!    15.8!    20.9!    21.6!    22.1!   [   ]     19
          20       11.5!     6.6!     8.4!     7.3!     5.3!     8.6!    11.8!    16.0!    20.5!    21.8!    22.2!   [   ]     20
          21       11.2!     6.0!     7.8!     6.7!     5.3!     8.8!    12.1!    15.7!    20.0!    21.9!    22.0!   [   ]     21
          22       11.2!     5.7!     6.6!     6.3!     4.8!     8.7!    11.6!    15.4!    19.5!    22.3!    21.6!   [   ]     22
          23       11.0!     5.7!     6.7!     6.7!     4.3!     8.6!    11.1!    16.1!    19.0!    22.4!    21.6!   [   ]     23
          24       11.0!     6.8!     7.2!     7.9!     4.9!     8.8!    11.4!    17.0!    18.9!    22.4!    21.4!   [   ]     24
          25       11.1!     6.7!     7.2!     7.7!     5.0!     8.7!   [   ]X    17.3!    19.0!    22.9!    21.2!   [   ]     25
          26       11.2!     6.5!     6.9!     7.0!     4.8!     8.0!    12.6!    17.1!    19.2!   [   ]X    21.1!   [   ]     26
          27       11.1!     7.6!     6.5!     6.3!     4.2!     8.2!    13.2!    16.5!    19.4!    23.4!    21.2!   [   ]     27
          28       11.5!     9.1!     6.4!     6.5!     3.8!     8.1!    13.4!    16.5!    19.4!    23.4!    21.5!   [   ]     28
          29       11.1!     8.9!     6.9!     6.2!              8.9!    12.9!    17.8!    19.6!    23.5!    21.7!   [   ]     29
          30       10.4!     8.5!     7.7!     5.4!             10.1!    12.9!    18.9!   [   ]X    23.4!    21.5!   [   ]     30
          31       10.4!              6.7!     5.1!             10.5!             19.5!             23.5!    21.2!             31

          Mean     12.7!     8.0!     6.3!     6.4!     4.3!     6.8!    10.9!    16.6!    20.1!    21.6!    22.6!    20.8!
        Median     12.6!     7.5!     6.9!     6.5!     4.7!     7.4!    10.9!    16.5!    20.0!    21.6!    22.4!    21.0!
Max.Daily Mean     16.3!    11.9!     8.4!     8.0!     7.1!    10.5!    13.4!    19.5!    22.5!    23.5!    24.1!    22.2!
Min.Daily Mean     10.4!     5.7!     1.9!     4.4!     1.7!     3.5!     8.5!    13.2!    17.7!    20.0!    21.1!    19.2!
      Inst.Max     16.4!    12.1!     8.6!     8.1!     7.2!    11.2!    13.9!    20.6!    23.6!    24.3!    25.1!    22.7!
      Inst.Min     10.3!     5.4!     1.7!     4.3!     1.4!     3.2!     8.4!    12.5!    16.8!    19.8!    20.6!    18.9!
  Missing Days        0        1        0        0        0        0        1        0        1        1        0       16

                Summaries               ------------------ Notes -------------------
                ---------               All recorded data is continuous and reliable
                                        except where the following tags are used...
 Annual Mean       12.8!                ! ...  Data not yet checked
 Ann. Median       11.2!                X ...  Data rejected
Missing Days         20                 [    ] Data Not Recorded

                Maximum     Minimum
 Daily Mean        24.1!        1.7!
    Instant        25.1!        1.4!







View downloadable table

Station 23A120—Verified historical data

water-year 2018 graph crosstab / table 15-minute data table technical notes
water-year 2017 graph crosstab / table 15-minute data table technical notes
water-year 2016 graph crosstab / table 15-minute data table technical notes

Water Temp. Monitoring Standard Operating Procedures

    Station 23A120—Diss. Oxygen

    Period of Record: 2016 — 2018

    Seven-day graph

    Water-year graph

    Mean data table


    Note: To print table on one page, change page setup to landscape orientation. Adjustment of page margins and/or text size may also be required.

             Washington State Dept. of Ecology                                                            HYDAY V139  Output 09/15/2019
    
             Site     23A120          Chehalis River @ Centralia                                                   Site       23A120.AT
             Variable 864.00          Dissolved Oxygen in mg/L                                                     Year         2018/19
                                      Figures are for period starting 00:00                                        Table Type     Level
    
             Day       Oct      Nov      Dec      Jan      Feb      Mar      Apr      May      Jun      Jul      Aug      Sep     Day
    
               1      [   ]X   10.43!   11.29!   12.30!   12.13!   12.85!   [   ]X   10.24!    8.19!    8.46!   [   ]X    7.23!     1
               2      [   ]X   10.29!   11.60!   12.46!   11.64!   12.45!   11.26!   10.10!   [   ]X    8.29!   [   ]X   [   ]X     2
               3      [   ]X   10.17!   11.90!   12.25!   11.43!   12.21!   11.04!   10.03!    8.02!    8.16!   [   ]X    7.27!     3
               4       7.98!   10.27!   12.24!   11.70!   11.55!   12.34!   10.90!   10.07!    8.07!    7.89!   [   ]X    6.73!     4
               5       7.95!   10.38!   12.64!   11.53!   12.22!   12.71!   10.86!    9.96!   [   ]X    7.62!   [   ]X    6.68!     5
               6      [   ]X   10.61!   13.03!   11.50!   12.91!   12.87!   10.74!    9.55!    8.14!   [   ]X   [   ]X    6.64!     6
               7      [   ]X   10.78!   13.40!   11.82!   13.32!   12.86!   10.80!    9.20!    8.24!   [   ]X   [   ]X   [   ]X     7
               8       8.66!   10.96!   13.66!   12.18!   13.65!   12.91!   10.89!    8.97!    8.22!    7.95!   [   ]X    6.44!     8
               9       9.23!   11.30!   13.47!   11.98!   13.51!   12.77!   10.85!    8.85!   [   ]X    7.74!   [   ]X    6.27!     9
              10       9.45!   11.58!   12.77!   11.59!   13.36!   12.60!   11.06!    8.75!   [   ]X   [   ]X   [   ]X   [   ]X    10
              11       9.37!   11.77!   12.36!   11.34!   13.38!   12.54!   11.26!    8.61!    9.00!    7.56!   [   ]X    6.05!    11
              12      [   ]X   11.79!   11.81!   11.46!   13.48!   12.52!   11.12!    8.44!    8.90!    7.60!   [   ]X    6.93!    12
              13       9.27!   11.86!   11.67!   11.79!   12.69!   12.34!   10.98!    8.38!    8.62!   [   ]X   [   ]X    6.89!    13
              14       9.12!   12.00!   11.46!   12.11!   12.16!   12.29!   11.27!    8.41!    8.09!    7.75!   [   ]X    6.66!    14
              15       9.13!   [   ]X   11.52!   12.31!   12.17!   12.24!   11.41!    8.58!    8.31!    7.57!   [   ]X   [   ]     15
              16       9.26!   11.89!   11.65!   12.36!   12.19!   12.04!   11.22!    8.76!    8.57!    7.44!    6.89!   [   ]     16
              17       9.22!   11.64!   11.42!   12.07!   12.36!   12.02!   11.16!    9.01!   [   ]X    7.31!    6.90!   [   ]     17
              18      [   ]X   11.23!   11.31!   11.64!   12.62!   11.95!   10.95!    9.18!    8.94!    7.16!    7.15!   [   ]     18
              19       9.35!   11.07!   11.19!   11.60!   12.60!   11.82!   10.57!    9.28!    9.12!    7.09!    7.07!   [   ]     19
              20       9.44!   11.32!   10.96!   11.56!   12.39!   11.73!   10.32!    9.02!    8.96!   [   ]X    6.99!   [   ]     20
              21       9.67!   11.63!   11.22!   11.69!   12.41!   11.58!   10.44!    8.96!    8.83!    7.53!    6.81!   [   ]     21
              22      [   ]X   11.94!   11.67!   11.98!   12.60!   11.66!   10.52!    9.19!    8.59!    7.72!    6.92!   [   ]     22
              23       9.36!   12.01!   11.74!   11.85!   12.78!   11.75!   10.63!    9.38!    8.74!    7.78!    6.84!   [   ]     23
              24       9.45!   11.65!   11.57!   11.59!   12.58!   11.90!   10.60!    9.05!    8.73!   [   ]X    6.82!   [   ]     24
              25       9.35!   11.82!   11.53!   11.63!   12.39!   11.80!   [   ]X    8.53!    8.66!   [   ]X    6.90!   [   ]     25
              26       9.50!   11.98!   11.63!   11.83!   12.45!   11.80!   10.46!    8.25!    8.76!   [   ]X    7.14!   [   ]     26
              27       9.58!   11.50!   11.82!   12.04!   12.67!   11.98!   10.28!    8.69!    8.45!   [   ]X    7.50!   [   ]     27
              28       9.59!   10.92!   11.95!   11.91!   12.85!   11.86!   10.14!    9.02!    8.27!   [   ]X   [   ]X   [   ]     28
              29      10.12!   10.90!   11.78!   11.97!            [   ]X   10.31!   [   ]X   [   ]X   [   ]X    7.38!   [   ]     29
              30      10.51!   11.02!   11.55!   12.23!            11.67!   10.32!    8.28!    8.19!   [   ]X    7.44!   [   ]     30
              31      10.56!            11.84!   12.34!            11.57!             8.27!            [   ]X    7.23!             31
    
              Mean     9.35!   11.27!   11.93!   11.89!   12.59!   12.19!   10.80!    9.03!    8.53!    7.70!    7.07!    6.71!
            Median     9.36!   11.32!   11.67!   11.85!   12.59!   12.13!   10.85!    8.99!    8.58!    7.67!    6.99!    6.68!
    Max.Daily Mean    10.56!   12.01!   13.66!   12.46!   13.65!   12.91!   11.41!   10.24!    9.12!    8.46!    7.50!    7.27!
    Min.Daily Mean     7.95!   10.17!   10.96!   11.34!   11.43!   11.57!   10.14!    8.25!    8.02!    7.09!    6.81!    6.05!
          Inst.Max    11.21!   12.15!   13.76!   12.51!   13.76!   13.02!   11.63!   10.36!   10.38!    9.24!    8.44!    8.16!
          Inst.Min     7.55!   10.11!   10.87!   11.23!   11.32!   10.36!    9.86!    7.75!    7.55!    5.86!    6.09!    5.14!
      Missing Days        8        1        0        0        0        1        2        1        6       13       16       19
    
                    Summaries               ------------------ Notes -------------------
                    ---------               All recorded data is continuous and reliable
                                            except where the following tags are used...
     Annual Mean      10.38!                ! ...  Data not yet checked
     Ann. Median      10.96!                X ...  Data rejected
    Missing Days         67                 [    ] Data Not Recorded
    
                    Maximum     Minimum
     Daily Mean       13.66!       6.05!
        Instant       13.76!       5.14!
    
    
    
    
    
    
    

    View downloadable table

    Station 23A120—Verified historical data

    water-year 2018 graph crosstab / table 15-minute data table technical notes
    water-year 2017 graph crosstab / table 15-minute data table technical notes
    water-year 2016 graph crosstab / table 15-minute data table technical notes

    Diss. Oxygen Monitoring Standard Operating Procedures

      Station 23A120—pH

      Period of Record: 2016 — 2018

      Seven-day graph

      Water-year graph

      Mean data table


      Note: To print table on one page, change page setup to landscape orientation. Adjustment of page margins and/or text size may also be required.

               Washington State Dept. of Ecology                                                            HYDAY V139  Output 09/15/2019
      
               Site     23A120          Chehalis River @ Centralia                                                   Site       23A120.AT
               Variable 860.00          pH                                                                           Year         2018/19
                                        Figures are for period starting 00:00                                        Table Type     Level
      
               Day       Oct      Nov      Dec      Jan      Feb      Mar      Apr      May      Jun      Jul      Aug      Sep     Day
      
                 1       7.10!    7.29!    7.29!    7.22!    7.27!    7.28!    8.35!    7.20!    7.20!    7.32!    7.29!    7.32!     1
                 2       7.09!    7.31!    7.32!    7.25!    7.29!    7.27!    8.35!    7.19!    7.18!    7.30!    7.28!    7.34!     2
                 3       7.11!    7.27!    7.35!    7.25!    7.30!    7.27!    8.37!    7.18!    7.18!    7.28!    7.29!    7.34!     3
                 4       7.11!    7.26!    7.36!    7.29!    7.31!    7.28!    8.38!    7.18!    7.20!    7.27!    7.26!    7.30!     4
                 5       7.12!    7.29!    7.37!    7.29!    7.34!    7.30!    8.36!    7.18!    7.16!    7.25!    7.26!    7.29!     5
                 6       7.16!    7.28!    7.37!    7.29!    7.32!    7.32!    8.34!    7.18!    7.19!    7.23!    7.26!    7.29!     6
                 7       7.17!    7.31!    7.37!    7.28!    7.31!    7.34!    8.31!    7.17!    7.21!    7.26!    7.26!    7.26!     7
                 8       7.19!    7.33!    7.38!    7.26!    7.31!    7.35!    8.20!    7.16!    7.20!    7.28!    7.24!    7.25!     8
                 9       7.20!    7.34!    7.38!    7.25!    7.34!    7.34!    8.16!    7.15!    7.24!    7.26!    7.21!    7.23!     9
                10       7.22!    7.35!    7.37!    7.22!    7.38!    7.34!    8.13!    7.15!    7.32!    7.25!    7.23!    7.16!    10
                11       7.22!    7.36!    7.36!    7.17!    7.36!    7.34!    8.09!    7.14!    7.29!    7.25!    7.16!    7.24!    11
                12       7.24!    7.36!    7.14!    7.19!    7.19!    7.35!    8.01!    7.14!    7.25!    7.26!    7.15!    7.36!    12
                13       7.25!    7.36!    7.10!    7.22!    7.01!    7.38!    8.01!    7.13!    7.27!    7.27!    7.14!    7.36!    13
                14       7.22!    7.37!    7.15!    7.24!    7.05!    7.37!    8.02!    7.14!    7.23!    7.30!    7.17!    7.33!    14
                15       7.18!   [   ]X    7.22!    7.25!    7.10!    7.35!    8.00!    7.14!    7.27!    7.33!    7.21!   [   ]     15
                16       7.18!    7.35!    7.25!    7.23!    7.14!    7.38!    8.00!    7.14!    7.33!    7.31!    7.23!   [   ]     16
                17       7.16!    7.35!    7.25!    7.25!    7.17!    7.44!    8.00!    7.17!    7.32!    7.29!    7.21!   [   ]     17
                18       7.16!    7.35!    7.16!    7.27!    7.18!    7.49!    8.03!    7.19!    7.31!    7.30!    7.26!   [   ]     18
                19       7.15!    7.35!    6.98!    7.25!    7.20!    7.57!    8.17!    7.21!    7.35!    7.28!    7.26!   [   ]     19
                20       7.16!    7.35!    7.03!    7.22!    7.23!    7.61!    8.19!    7.19!    7.35!    7.33!    7.23!   [   ]     20
                21       7.18!    7.35!    7.10!    7.22!    7.24!    7.63!    8.24!    7.23!    7.33!    7.33!    7.24!   [   ]     21
                22       7.18!    7.37!    7.14!    7.25!    7.25!    7.67!    8.21!    7.23!    7.28!    7.38!    7.23!   [   ]     22
                23       7.16!    7.40!    7.17!    7.25!    7.27!    7.72!    8.15!    7.23!    7.29!    7.38!    7.22!   [   ]     23
                24       7.19!    7.43!    7.13!    7.26!    7.26!    7.78!    8.14!    7.23!    7.29!    7.37!    7.23!   [   ]     24
                25       7.17!    7.38!    7.13!    7.26!    7.27!    7.79!   [   ]X    7.21!    7.29!    7.38!    7.23!   [   ]     25
                26       7.21!    7.38!    7.16!    7.27!    7.27!    7.77!    7.25!    7.18!    7.29!    7.39!    7.28!   [   ]     26
                27       7.23!    7.33!    7.20!    7.26!    7.27!    7.83!    7.25!    7.20!    7.25!    7.35!    7.34!   [   ]     27
                28       7.30!    7.15!    7.21!    7.26!    7.29!    7.81!    7.23!    7.21!    7.23!    7.33!    7.35!   [   ]     28
                29       7.30!    7.16!    7.24!    7.27!             7.94!    7.22!    7.21!    7.26!    7.30!    7.37!   [   ]     29
                30       7.26!    7.21!    7.21!    7.27!             8.16!    7.20!    7.19!    7.26!    7.30!    7.36!   [   ]     30
                31       7.28!             7.18!    7.26!             8.32!             7.19!             7.30!    7.31!             31
      
                Mean     7.19!    7.32!    7.23!    7.25!    7.25!    7.54!    8.01!    7.18!    7.26!    7.30!    7.25!    7.29!
              Median     7.18!    7.35!    7.21!    7.25!    7.27!    7.38!    8.14!    7.18!    7.26!    7.30!    7.24!    7.30!
      Max.Daily Mean     7.30!    7.43!    7.38!    7.29!    7.38!    8.32!    8.38!    7.23!    7.35!    7.39!    7.37!    7.36!
      Min.Daily Mean     7.09!    7.15!    6.98!    7.17!    7.01!    7.27!    7.20!    7.13!    7.16!    7.23!    7.14!    7.16!
            Inst.Max     7.39!    7.46!    7.41!    7.34!    7.41!    8.42!    8.45!    7.26!    7.65!    7.52!    7.44!    7.41!
            Inst.Min     7.01!    7.12!    6.92!    7.12!    6.98!    7.25!    7.19!    7.10!    7.00!    7.17!    7.05!    7.13!
        Missing Days        0        1        0        0        0        0        1        0        0        0        0       16
      
                      Summaries               ------------------ Notes -------------------
                      ---------               All recorded data is continuous and reliable
                                              except where the following tags are used...
       Annual Mean       7.34!                ! ...  Data not yet checked
       Ann. Median       7.27!                X ...  Data rejected
      Missing Days         18                 [    ] Data Not Recorded
      
                      Maximum     Minimum
       Daily Mean        8.38!       6.98!
          Instant        8.45!       6.92!
      
      
      
      
      
      
      

      View downloadable table

      Station 23A120—Verified historical data

      water-year 2018 graph crosstab / table 15-minute data table technical notes
      water-year 2017 graph crosstab / table 15-minute data table technical notes
      water-year 2016 graph crosstab / table 15-minute data table technical notes

      pH Monitoring Standard Operating Procedures

        Station 23A120—Conductivity

        Period of Record: 2016 — 2018

        Seven-day graph

        Water-year graph

        Mean data table


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                 Washington State Dept. of Ecology                                                            HYDAY V139  Output 09/15/2019
        
                 Site     23A120          Chehalis River @ Centralia                                                   Site       23A120.AT
                 Variable 821.00          Conductivity in MicroSiemens/Cm                                              Year         2018/19
                                          Figures are for period starting 00:00                                        Table Type     Level
        
                 Day       Oct      Nov      Dec      Jan      Feb      Mar      Apr      May      Jun      Jul      Aug      Sep     Day
        
                   1         99!      75!      65!      59!      74!      73!   [   ]X      77!      91!      97!     106!     109!     1
                   2        100!      76!      66!      62!      74!      73!      75!      78!      92!      95!     107!   [   ]X     2
                   3        100!      69!      68!      64!      72!      73!      76!      79!      93!      96!     107!     110!     3
                   4      [   ]X      67!      70!      63!      74!      74!      77!      80!      93!      96!     108!   [   ]X     4
                   5        103!      67!      72!      59!      75!      76!      77!      80!   [   ]X      98!     109!     113!     5
                   6      [   ]X      66!      73!      61!      76!      77!      76!      81!      94!     100!     109!     113!     6
                   7        102!      68!      75!      62!      77!      77!      72!      82!      94!     100!   [   ]X     113!     7
                   8         98!      70!      76!      63!      79!   [   ]X      65!      83!   [   ]X     101!     109!     113!     8
                   9         96!      71!      77!      63!      79!      76!      65!      84!   [   ]X     101!     109!     113!     9
                  10         93!      73!      77!      61!      78!      76!      64!      85!      88!     101!     109!     121!    10
                  11         93!      75!      73!      56!      78!      77!      64!      86!      85!     101!     110!     120!    11
                  12         93!      76!      60!      60!      63!   [   ]X      58!      87!      85!     101!     112!     107!    12
                  13         91!      77!      58!      63!      51!      68!      58!      88!      88!   [   ]X     113!     102!    13
                  14         91!      79!      59!      65!      54!      67!      58!      88!      90!      99!     113!     101!    14
                  15         92!   [   ]X      61!      66!      55!      69!      59!      88!      93!      98!     111!   [   ]     15
                  16      [   ]X      84!      63!      70!      56!      70!      60!      88!      94!   [   ]X     109!   [   ]     16
                  17         92!      84!      63!      72!      56!      70!      61!      86!   [   ]X      99!     109!   [   ]     17
                  18      [   ]X      85!      58!      71!      58!      70!      64!      84!   [   ]X     100!   [   ]X   [   ]     18
                  19         95!      87!      52!      66!      61!      68!      65!      83!      97!     101!     112!   [   ]     19
                  20         96!      87!      56!      60!      61!      67!      68!      83!      98!     101!     113!   [   ]     20
                  21         97!      89!      58!      63!      61!      66!      69!      82!   [   ]X     101!     113!   [   ]     21
                  22      [   ]X      89!      60!      66!      63!   [   ]X      71!      82!      99!     100!     114!   [   ]     22
                  23         99!      89!      60!      65!      65!      68!      73!      82!      99!      99!     115!   [   ]     23
                  24        100!      80!      56!      58!      65!   [   ]X      73!      84!      99!      99!     116!   [   ]     24
                  25        101!      74!      58!      61!      67!   [   ]X   [   ]X      85!      99!     100!     115!   [   ]     25
                  26        101!      74!      61!      64!      68!      70!      72!      87!      98!     100!     114!   [   ]     26
                  27        101!      71!      62!      66!      70!      69!      73!      87!      99!     102!     113!   [   ]     27
                  28         97!      61!      63!      69!      71!      70!      74!      87!      99!     103!     113!   [   ]     28
                  29         77!      62!      64!      69!               71!      75!      87!      99!     104!     112!   [   ]     29
                  30         75!      63!      56!      71!               72!      76!      88!   [   ]X     105!     109!   [   ]     30
                  31      [   ]X               56!      73!               73!               90!              105!     110!             31
        
                  Mean       95!      75!      64!      64!      67!      72!      69!      84!      94!     100!     111!     111!
                Median       97!      75!      62!      63!      67!      70!      70!      84!      94!     100!     111!     113!
        Max.Daily Mean      103!      89!      77!      73!      79!      77!      77!      90!      99!     105!     116!     121!
        Min.Daily Mean       75!      61!      52!      56!      51!      66!      58!      77!      85!      95!     106!     101!
              Inst.Max      103!      90!      78!      74!      80!      79!      78!      91!      99!     108!     118!     125!
              Inst.Min       73!      60!      50!      55!      50!      66!      57!      77!      83!      95!     105!     100!
          Missing Days        6        1        0        0        0        5        2        0        7        2        2       18
        
                        Summaries               ------------------ Notes -------------------
                        ---------               All recorded data is continuous and reliable
                                                except where the following tags are used...
         Annual Mean         82!                ! ...  Data not yet checked
         Ann. Median         77!                X ...  Data rejected
        Missing Days         43                 [    ] Data Not Recorded
        
                        Maximum     Minimum
         Daily Mean         121!         51!
            Instant         125!         50!
        
        
        
        
        
        
        

        View downloadable table

        Station 23A120—Verified historical data

        water-year 2018 graph crosstab / table 15-minute data table technical notes
        water-year 2017 graph crosstab / table 15-minute data table technical notes
        water-year 2016 graph crosstab / table 15-minute data table technical notes

        Conductivity Monitoring Standard Operating Procedures