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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 05/23/2019

         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!   [   ]    [   ]    [   ]    [   ]      1
           2       16.1!    11.4!     7.3!     5.0!     6.6!     5.2!    10.9!    13.3!   [   ]    [   ]    [   ]    [   ]      2
           3       15.7!    11.9!     6.6!     5.6!     7.1!     5.7!    11.0!    13.3!   [   ]    [   ]    [   ]    [   ]      3
           4       15.5!    11.5!     5.6!     7.1!     6.2!     5.2!    11.1!    13.6!   [   ]    [   ]    [   ]    [   ]      4
           5       14.9!    11.2!     4.3!     7.6!     4.5!     4.3!    11.0!    14.3!   [   ]    [   ]    [   ]    [   ]      5
           6       14.6!    10.3!     3.2!     7.1!     3.2!     3.7!    10.7!    15.6!   [   ]    [   ]    [   ]    [   ]      6
           7       13.6!     9.9!     2.2!     6.5!     2.4!     3.5!    10.5!    16.7!   [   ]    [   ]    [   ]    [   ]      7
           8       12.9!     9.2!     1.9!     5.8!     1.8!     3.8!    10.1!    17.4!   [   ]    [   ]    [   ]    [   ]      8
           9       12.5!     8.0!     2.7!     6.1!     1.7!     4.2!    10.6!    18.0!   [   ]    [   ]    [   ]    [   ]      9
          10       12.6!     7.1!     4.1!     7.3!     1.9!     4.7!    10.0!    18.5!   [   ]    [   ]    [   ]    [   ]     10
          11       12.8!     6.6!     5.4!     8.0!     1.8!     4.9!     9.4!    19.2!   [   ]    [   ]    [   ]    [   ]     11
          12       13.2!     6.4!     6.5!     7.4!     1.8!     5.1!     9.5!    19.5!   [   ]    [   ]    [   ]    [   ]     12
          13       13.4!     6.2!     7.1!     6.5!     3.6!     5.6!     9.9!    19.3!   [   ]    [   ]    [   ]    [   ]     13
          14       13.2!     5.9!     7.4!     5.6!     4.5!     6.3!     8.9!    18.4!   [   ]    [   ]    [   ]    [   ]     14
          15       13.0!   [   ]X     7.2!     4.8!     4.6!     6.7!     8.5!    17.4!   [   ]    [   ]    [   ]    [   ]     15
          16       12.8!     6.7!     6.9!     4.4!     5.3!     7.4!     9.1!    16.4!   [   ]    [   ]    [   ]    [   ]     16
          17       12.6!     7.2!     7.7!     5.2!     5.1!     7.7!     9.8!    15.7!   [   ]    [   ]    [   ]    [   ]     17
          18       12.2!     7.6!     8.1!     6.5!     4.9!     8.1!    10.8!    15.5!   [   ]    [   ]    [   ]    [   ]     18
          19       11.9!     7.5!     8.1!     7.1!     5.1!     8.3!    11.7!    15.8!   [   ]    [   ]    [   ]    [   ]     19
          20       11.5!     6.6!     8.4!     7.3!     5.3!     8.6!    11.8!    16.0!   [   ]    [   ]    [   ]    [   ]     20
          21       11.2!     6.0!     7.8!     6.7!     5.3!     8.8!    12.1!    15.7!   [   ]    [   ]    [   ]    [   ]     21
          22       11.2!     5.7!     6.6!     6.3!     4.8!     8.7!    11.6!    15.4!   [   ]    [   ]    [   ]    [   ]     22
          23       11.0!     5.7!     6.7!     6.7!     4.3!     8.6!    11.1!   [   ]    [   ]    [   ]    [   ]    [   ]     23
          24       11.0!     6.8!     7.2!     7.9!     4.9!     8.8!    11.4!   [   ]    [   ]    [   ]    [   ]    [   ]     24
          25       11.1!     6.7!     7.2!     7.7!     5.0!     8.7!   [   ]X   [   ]    [   ]    [   ]    [   ]    [   ]     25
          26       11.2!     6.5!     6.9!     7.0!     4.8!     8.0!    12.6!   [   ]    [   ]    [   ]    [   ]    [   ]     26
          27       11.1!     7.6!     6.5!     6.3!     4.2!     8.2!    13.2!   [   ]    [   ]    [   ]    [   ]    [   ]     27
          28       11.5!     9.1!     6.4!     6.5!     3.8!     8.1!    13.4!   [   ]    [   ]    [   ]    [   ]    [   ]     28
          29       11.1!     8.9!     6.9!     6.2!              8.9!    12.9!   [   ]    [   ]    [   ]    [   ]    [   ]     29
          30       10.4!     8.5!     7.7!     5.4!             10.1!    12.9!   [   ]    [   ]    [   ]    [   ]    [   ]     30
          31       10.4!              6.7!     5.1!             10.5!            [   ]             [   ]    [   ]              31

          Mean     12.7!     8.0!     6.3!     6.4!     4.3!     6.8!    10.9!    16.3!   [   ]    [   ]    [   ]    [   ]
        Median     12.6!     7.5!     6.9!     6.5!     4.7!     7.4!    10.9!    15.9!   [   ]    [   ]    [   ]    [   ]
Max.Daily Mean     16.3!    11.9!     8.4!     8.0!     7.1!    10.5!    13.4!    19.5!   [   ]    [   ]    [   ]    [   ]
Min.Daily Mean     10.4!     5.7!     1.9!     4.4!     1.7!     3.5!     8.5!    13.2!   [   ]    [   ]    [   ]    [   ]
      Inst.Max     16.4!    12.1!     8.6!     8.1!     7.2!    11.2!    13.9!    20.1!   [   ]    [   ]    [   ]    [   ]
      Inst.Min     10.3!     5.4!     1.7!     4.3!     1.4!     3.2!     8.4!    12.5!   [   ]    [   ]    [   ]    [   ]
  Missing Days        0        1        0        0        0        0        1        9       30       31       31       30

                Summaries               ------------------ Notes -------------------
                ---------               All recorded data is continuous and reliable
                                        except where the following tags are used...
 Annual Mean        8.7!                ! ...  Data not yet checked
 Ann. Median        7.7!                X ...  Data rejected
Missing Days        133                 [    ] Data Not Recorded

                Maximum     Minimum
 Daily Mean        19.5!        1.7!
    Instant        20.1!        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 05/23/2019
    
             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!   [   ]    [   ]    [   ]    [   ]      1
               2      [   ]X   10.29!   11.60!   12.46!   11.64!   12.45!   11.26!   10.10!   [   ]    [   ]    [   ]    [   ]      2
               3      [   ]X   10.17!   11.90!   12.25!   11.43!   12.21!   11.04!   10.03!   [   ]    [   ]    [   ]    [   ]      3
               4       7.98!   10.27!   12.24!   11.70!   11.55!   12.34!   10.90!   10.07!   [   ]    [   ]    [   ]    [   ]      4
               5       7.95!   10.38!   12.64!   11.53!   12.22!   12.71!   10.86!    9.96!   [   ]    [   ]    [   ]    [   ]      5
               6      [   ]X   10.61!   13.03!   11.50!   12.91!   12.87!   10.74!    9.55!   [   ]    [   ]    [   ]    [   ]      6
               7      [   ]X   10.78!   13.40!   11.82!   13.32!   12.86!   10.80!    9.20!   [   ]    [   ]    [   ]    [   ]      7
               8       8.66!   10.96!   13.66!   12.18!   13.65!   12.91!   10.89!    8.97!   [   ]    [   ]    [   ]    [   ]      8
               9       9.23!   11.30!   13.47!   11.98!   13.51!   12.77!   10.85!    8.85!   [   ]    [   ]    [   ]    [   ]      9
              10       9.45!   11.58!   12.77!   11.59!   13.36!   12.60!   11.06!    8.75!   [   ]    [   ]    [   ]    [   ]     10
              11       9.37!   11.77!   12.36!   11.34!   13.38!   12.54!   11.26!    8.61!   [   ]    [   ]    [   ]    [   ]     11
              12      [   ]X   11.79!   11.81!   11.46!   13.48!   12.52!   11.12!    8.44!   [   ]    [   ]    [   ]    [   ]     12
              13       9.27!   11.86!   11.67!   11.79!   12.69!   12.34!   10.98!    8.38!   [   ]    [   ]    [   ]    [   ]     13
              14       9.12!   12.00!   11.46!   12.11!   12.16!   12.29!   11.27!    8.41!   [   ]    [   ]    [   ]    [   ]     14
              15       9.13!   [   ]X   11.52!   12.31!   12.17!   12.24!   11.41!    8.58!   [   ]    [   ]    [   ]    [   ]     15
              16       9.26!   11.89!   11.65!   12.36!   12.19!   12.04!   11.22!    8.76!   [   ]    [   ]    [   ]    [   ]     16
              17       9.22!   11.64!   11.42!   12.07!   12.36!   12.02!   11.16!    9.01!   [   ]    [   ]    [   ]    [   ]     17
              18      [   ]X   11.23!   11.31!   11.64!   12.62!   11.95!   10.95!    9.18!   [   ]    [   ]    [   ]    [   ]     18
              19       9.35!   11.07!   11.19!   11.60!   12.60!   11.82!   10.57!    9.28!   [   ]    [   ]    [   ]    [   ]     19
              20       9.44!   11.32!   10.96!   11.56!   12.39!   11.73!   10.32!    9.02!   [   ]    [   ]    [   ]    [   ]     20
              21       9.67!   11.63!   11.22!   11.69!   12.41!   11.58!   10.44!    8.96!   [   ]    [   ]    [   ]    [   ]     21
              22      [   ]X   11.94!   11.67!   11.98!   12.60!   11.66!   10.52!    9.19!   [   ]    [   ]    [   ]    [   ]     22
              23       9.36!   12.01!   11.74!   11.85!   12.78!   11.75!   10.63!   [   ]    [   ]    [   ]    [   ]    [   ]     23
              24       9.45!   11.65!   11.57!   11.59!   12.58!   11.90!   10.60!   [   ]    [   ]    [   ]    [   ]    [   ]     24
              25       9.35!   11.82!   11.53!   11.63!   12.39!   11.80!   [   ]X   [   ]    [   ]    [   ]    [   ]    [   ]     25
              26       9.50!   11.98!   11.63!   11.83!   12.45!   11.80!   10.46!   [   ]    [   ]    [   ]    [   ]    [   ]     26
              27       9.58!   11.50!   11.82!   12.04!   12.67!   11.98!   10.28!   [   ]    [   ]    [   ]    [   ]    [   ]     27
              28       9.59!   10.92!   11.95!   11.91!   12.85!   11.86!   10.14!   [   ]    [   ]    [   ]    [   ]    [   ]     28
              29      10.12!   10.90!   11.78!   11.97!            [   ]X   10.31!   [   ]    [   ]    [   ]    [   ]    [   ]     29
              30      10.51!   11.02!   11.55!   12.23!            11.67!   10.32!   [   ]    [   ]    [   ]    [   ]    [   ]     30
              31      10.56!            11.84!   12.34!            11.57!            [   ]             [   ]    [   ]              31
    
              Mean     9.35!   11.27!   11.93!   11.89!   12.59!   12.19!   10.80!    9.16!   [   ]    [   ]    [   ]    [   ]
            Median     9.36!   11.32!   11.67!   11.85!   12.59!   12.13!   10.85!    9.01!   [   ]    [   ]    [   ]    [   ]
    Max.Daily Mean    10.56!   12.01!   13.66!   12.46!   13.65!   12.91!   11.41!   10.24!   [   ]    [   ]    [   ]    [   ]
    Min.Daily Mean     7.95!   10.17!   10.96!   11.34!   11.43!   11.57!   10.14!    8.38!   [   ]    [   ]    [   ]    [   ]
          Inst.Max    11.21!   12.15!   13.76!   12.51!   13.76!   13.02!   11.63!   10.36!   [   ]    [   ]    [   ]    [   ]
          Inst.Min     7.55!   10.11!   10.87!   11.23!   11.32!   10.36!    9.86!    8.04!   [   ]    [   ]    [   ]    [   ]
      Missing Days        8        1        0        0        0        1        2        9       30       31       31       30
    
                    Summaries               ------------------ Notes -------------------
                    ---------               All recorded data is continuous and reliable
                                            except where the following tags are used...
     Annual Mean      11.27!                ! ...  Data not yet checked
     Ann. Median      11.59!                X ...  Data rejected
    Missing Days        143                 [    ] Data Not Recorded
    
                    Maximum     Minimum
     Daily Mean       13.66!       7.95!
        Instant       13.76!       7.55!
    
    
    
    
    
    
    

    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 05/23/2019
      
               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!   [   ]    [   ]    [   ]    [   ]      1
                 2       7.09!    7.31!    7.32!    7.25!    7.29!    7.27!    8.35!    7.19!   [   ]    [   ]    [   ]    [   ]      2
                 3       7.11!    7.27!    7.35!    7.25!    7.30!    7.27!    8.37!    7.18!   [   ]    [   ]    [   ]    [   ]      3
                 4       7.11!    7.26!    7.36!    7.29!    7.31!    7.28!    8.38!    7.18!   [   ]    [   ]    [   ]    [   ]      4
                 5       7.12!    7.29!    7.37!    7.29!    7.34!    7.30!    8.36!    7.18!   [   ]    [   ]    [   ]    [   ]      5
                 6       7.16!    7.28!    7.37!    7.29!    7.32!    7.32!    8.34!    7.18!   [   ]    [   ]    [   ]    [   ]      6
                 7       7.17!    7.31!    7.37!    7.28!    7.31!    7.34!    8.31!    7.17!   [   ]    [   ]    [   ]    [   ]      7
                 8       7.19!    7.33!    7.38!    7.26!    7.31!    7.35!    8.20!    7.16!   [   ]    [   ]    [   ]    [   ]      8
                 9       7.20!    7.34!    7.38!    7.25!    7.34!    7.34!    8.16!    7.15!   [   ]    [   ]    [   ]    [   ]      9
                10       7.22!    7.35!    7.37!    7.22!    7.38!    7.34!    8.13!    7.15!   [   ]    [   ]    [   ]    [   ]     10
                11       7.22!    7.36!    7.36!    7.17!    7.36!    7.34!    8.09!    7.14!   [   ]    [   ]    [   ]    [   ]     11
                12       7.24!    7.36!    7.14!    7.19!    7.19!    7.35!    8.01!    7.14!   [   ]    [   ]    [   ]    [   ]     12
                13       7.25!    7.36!    7.10!    7.22!    7.01!    7.38!    8.01!    7.13!   [   ]    [   ]    [   ]    [   ]     13
                14       7.22!    7.37!    7.15!    7.24!    7.05!    7.37!    8.02!    7.14!   [   ]    [   ]    [   ]    [   ]     14
                15       7.18!   [   ]X    7.22!    7.25!    7.10!    7.35!    8.00!    7.14!   [   ]    [   ]    [   ]    [   ]     15
                16       7.18!    7.35!    7.25!    7.23!    7.14!    7.38!    8.00!    7.14!   [   ]    [   ]    [   ]    [   ]     16
                17       7.16!    7.35!    7.25!    7.25!    7.17!    7.44!    8.00!    7.17!   [   ]    [   ]    [   ]    [   ]     17
                18       7.16!    7.35!    7.16!    7.27!    7.18!    7.49!    8.03!    7.19!   [   ]    [   ]    [   ]    [   ]     18
                19       7.15!    7.35!    6.98!    7.25!    7.20!    7.57!    8.17!    7.21!   [   ]    [   ]    [   ]    [   ]     19
                20       7.16!    7.35!    7.03!    7.22!    7.23!    7.61!    8.19!    7.19!   [   ]    [   ]    [   ]    [   ]     20
                21       7.18!    7.35!    7.10!    7.22!    7.24!    7.63!    8.24!    7.23!   [   ]    [   ]    [   ]    [   ]     21
                22       7.18!    7.37!    7.14!    7.25!    7.25!    7.67!    8.21!    7.23!   [   ]    [   ]    [   ]    [   ]     22
                23       7.16!    7.40!    7.17!    7.25!    7.27!    7.72!    8.15!   [   ]    [   ]    [   ]    [   ]    [   ]     23
                24       7.19!    7.43!    7.13!    7.26!    7.26!    7.78!    8.14!   [   ]    [   ]    [   ]    [   ]    [   ]     24
                25       7.17!    7.38!    7.13!    7.26!    7.27!    7.79!   [   ]X   [   ]    [   ]    [   ]    [   ]    [   ]     25
                26       7.21!    7.38!    7.16!    7.27!    7.27!    7.77!    7.25!   [   ]    [   ]    [   ]    [   ]    [   ]     26
                27       7.23!    7.33!    7.20!    7.26!    7.27!    7.83!    7.25!   [   ]    [   ]    [   ]    [   ]    [   ]     27
                28       7.30!    7.15!    7.21!    7.26!    7.29!    7.81!    7.23!   [   ]    [   ]    [   ]    [   ]    [   ]     28
                29       7.30!    7.16!    7.24!    7.27!             7.94!    7.22!   [   ]    [   ]    [   ]    [   ]    [   ]     29
                30       7.26!    7.21!    7.21!    7.27!             8.16!    7.20!   [   ]    [   ]    [   ]    [   ]    [   ]     30
                31       7.28!             7.18!    7.26!             8.32!            [   ]             [   ]    [   ]              31
      
                Mean     7.19!    7.32!    7.23!    7.25!    7.25!    7.54!    8.01!    7.17!   [   ]    [   ]    [   ]    [   ]
              Median     7.18!    7.35!    7.21!    7.25!    7.27!    7.38!    8.14!    7.17!   [   ]    [   ]    [   ]    [   ]
      Max.Daily Mean     7.30!    7.43!    7.38!    7.29!    7.38!    8.32!    8.38!    7.23!   [   ]    [   ]    [   ]    [   ]
      Min.Daily Mean     7.09!    7.15!    6.98!    7.17!    7.01!    7.27!    7.20!    7.13!   [   ]    [   ]    [   ]    [   ]
            Inst.Max     7.39!    7.46!    7.41!    7.34!    7.41!    8.42!    8.45!    7.25!   [   ]    [   ]    [   ]    [   ]
            Inst.Min     7.01!    7.12!    6.92!    7.12!    6.98!    7.25!    7.19!    7.10!   [   ]    [   ]    [   ]    [   ]
        Missing Days        0        1        0        0        0        0        1        9       30       31       31       30
      
                      Summaries               ------------------ Notes -------------------
                      ---------               All recorded data is continuous and reliable
                                              except where the following tags are used...
       Annual Mean       7.37!                ! ...  Data not yet checked
       Ann. Median       7.27!                X ...  Data rejected
      Missing Days        133                 [    ] 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


        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 05/23/2019
        
                 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!   [   ]    [   ]    [   ]    [   ]      1
                   2        100!      76!      66!      62!      74!      73!      75!      78!   [   ]    [   ]    [   ]    [   ]      2
                   3        100!      69!      68!      64!      72!      73!      76!      79!   [   ]    [   ]    [   ]    [   ]      3
                   4      [   ]X      67!      70!      63!      74!      74!      77!      80!   [   ]    [   ]    [   ]    [   ]      4
                   5        103!      67!      72!      59!      75!      76!      77!      80!   [   ]    [   ]    [   ]    [   ]      5
                   6      [   ]X      66!      73!      61!      76!      77!      76!      81!   [   ]    [   ]    [   ]    [   ]      6
                   7        102!      68!      75!      62!      77!      77!      72!      82!   [   ]    [   ]    [   ]    [   ]      7
                   8         98!      70!      76!      63!      79!   [   ]X      65!      83!   [   ]    [   ]    [   ]    [   ]      8
                   9         96!      71!      77!      63!      79!      76!      65!      84!   [   ]    [   ]    [   ]    [   ]      9
                  10         93!      73!      77!      61!      78!      76!      64!      85!   [   ]    [   ]    [   ]    [   ]     10
                  11         93!      75!      73!      56!      78!      77!      64!      86!   [   ]    [   ]    [   ]    [   ]     11
                  12         93!      76!      60!      60!      63!   [   ]X      58!      87!   [   ]    [   ]    [   ]    [   ]     12
                  13         91!      77!      58!      63!      51!      68!      58!      88!   [   ]    [   ]    [   ]    [   ]     13
                  14         91!      79!      59!      65!      54!      67!      58!      88!   [   ]    [   ]    [   ]    [   ]     14
                  15         92!   [   ]X      61!      66!      55!      69!      59!      88!   [   ]    [   ]    [   ]    [   ]     15
                  16      [   ]X      84!      63!      70!      56!      70!      60!      88!   [   ]    [   ]    [   ]    [   ]     16
                  17         92!      84!      63!      72!      56!      70!      61!      86!   [   ]    [   ]    [   ]    [   ]     17
                  18      [   ]X      85!      58!      71!      58!      70!      64!      84!   [   ]    [   ]    [   ]    [   ]     18
                  19         95!      87!      52!      66!      61!      68!      65!      83!   [   ]    [   ]    [   ]    [   ]     19
                  20         96!      87!      56!      60!      61!      67!      68!      83!   [   ]    [   ]    [   ]    [   ]     20
                  21         97!      89!      58!      63!      61!      66!      69!      82!   [   ]    [   ]    [   ]    [   ]     21
                  22      [   ]X      89!      60!      66!      63!   [   ]X      71!      82!   [   ]    [   ]    [   ]    [   ]     22
                  23         99!      89!      60!      65!      65!      68!      73!   [   ]    [   ]    [   ]    [   ]    [   ]     23
                  24        100!      80!      56!      58!      65!   [   ]X      73!   [   ]    [   ]    [   ]    [   ]    [   ]     24
                  25        101!      74!      58!      61!      67!   [   ]X   [   ]X   [   ]    [   ]    [   ]    [   ]    [   ]     25
                  26        101!      74!      61!      64!      68!      70!      72!   [   ]    [   ]    [   ]    [   ]    [   ]     26
                  27        101!      71!      62!      66!      70!      69!      73!   [   ]    [   ]    [   ]    [   ]    [   ]     27
                  28         97!      61!      63!      69!      71!      70!      74!   [   ]    [   ]    [   ]    [   ]    [   ]     28
                  29         77!      62!      64!      69!               71!      75!   [   ]    [   ]    [   ]    [   ]    [   ]     29
                  30         75!      63!      56!      71!               72!      76!   [   ]    [   ]    [   ]    [   ]    [   ]     30
                  31      [   ]X               56!      73!               73!            [   ]             [   ]    [   ]              31
        
                  Mean       95!      75!      64!      64!      67!      72!      69!      83!   [   ]    [   ]    [   ]    [   ]
                Median       97!      75!      62!      63!      67!      70!      70!      83!   [   ]    [   ]    [   ]    [   ]
        Max.Daily Mean      103!      89!      77!      73!      79!      77!      77!      88!   [   ]    [   ]    [   ]    [   ]
        Min.Daily Mean       75!      61!      52!      56!      51!      66!      58!      77!   [   ]    [   ]    [   ]    [   ]
              Inst.Max      103!      90!      78!      74!      80!      79!      78!      89!   [   ]    [   ]    [   ]    [   ]
              Inst.Min       73!      60!      50!      55!      50!      66!      57!      77!   [   ]    [   ]    [   ]    [   ]
          Missing Days        6        1        0        0        0        5        2        9       30       31       31       30
        
                        Summaries               ------------------ Notes -------------------
                        ---------               All recorded data is continuous and reliable
                                                except where the following tags are used...
         Annual Mean         73!                ! ...  Data not yet checked
         Ann. Median         72!                X ...  Data rejected
        Missing Days        145                 [    ] Data Not Recorded
        
                        Maximum     Minimum
         Daily Mean         103!         51!
            Instant         103!         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