<pre>


Figure 4.4 Nitrate/Nitrite, Ammonia, and TKN concentrations for the
            effluent from the septic tank at Site 2.


  70

  0


z
0


':3O
420
C
0
0

0


   20


 0
 z
 0


 0
 ZI
 0
 U
 z
 w
 0

 z


I                                             NOV


        AUG                 SEP                OCT                NOV
Figure 4.6 Nitrate/Nitrite, Ammonia, TKN, and Total Nitrogen concentrations for
            the dosing chamber immediately before the mound system at Site 2.


SEP                 OCT


O0                                      I          --               'I" .,


  P I OCT ' NOV ' DEC    JAN   FEB   MAR   APR 'MAY ' JUN 'JUL     AUG   sPr   u     ".. v
          1991                                            1992


Figure 4.5 Nitrate/Nitrite, Ammonia, and TKN concentrations for the pump
            chamber in the recirculating sand filter at Site 2.


5


0


                                                       FPUMP
                                                       STARTED
                                        ...!


-  ---  ---  ---  --- -~  - - -   - - - - -   ---'n '6 ----  -- T


         ...                             ... ... .. ... ... .. wo ... ........ . .. ... ..
                                                      %                            . .


                ----------------
             ---- --- --- ---- --- -  - --- ---- --- --- ---- --- --- ---


DEC


30-


                                     o vi                 PUM P                         I  . y ./

    INSTALE                                  4           STARTED
    .. STA...  ................. ......................................  - . .........   .....................................
                      ..........................
   .. .. .. .. ,, ............................ : - ,,. ; . . . . . . . ........
 --- - - -- - ---- -..               .....--

...............  $! .... -., -............................-   .
                      *.,. .                                 :  ".          . , ,
                                                           "-          - - --,_,. ;"- - --"


ii                                                                         ~m.J   ~


AUG


,%00,-


Li


NOV


      - - - - - -- -- -- ---------- -------- -- -- -- -- -- ---- ---- ----- -L
                     4f   %                                     TANK            PUMP

     -     ., :. . . . :, .,
         --  -   .......------  -  - -- --- - -- - ---------- -- STARTED


       -'                                                                .-- -- --- -

           -S -. -'                      -  -- -          -- - - ----- -,         -   - - -
....................... - . i - - - - - -


                                                                  "i I I i  I }1    .," . Ir


i


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