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. .�• if { �:t �"?'-q M.w#w' _: ka ..,a'qR R � 'N �� s@1$'� a�'`Ar�''� ,$fir k2 i 5+x'0.. � $ t' q*rd 1 n `:
<br /> .. �� .. ,, ry •,�� �"1 ti �;�'4�3R�a�� � .� rr 3�"r�g�Z a�;� d�� '�=�w"F+i ;� z� - �,'��
<br /> *11 ay Go.' 1
<br /> "Protect' -116-1'.4
<br /> �,:;
<br /> The 1 ►Hers under``the ;solar ,evaporation ponds we're discussed at
<br /> t g p y°, '1 Y p �. '
<br /> our recent meetln and ho e'full an revious m►sundersfand►n s
<br /> we_ref'cl a r►f i ed R°:We agkreed `to add one: add it ion a I ,foot of `,1 I ner:.
<br /> .In Pond #5 'a long :`the construction Joint separating Pond #5 from
<br /> 5 _ . { � •,
<br /> � *
<br /> on #.1 through, #4 ITh I s''correct►ve° work cannot be compl eted '
<br /> P
<br /> s,*
<br /> phowever unt't;1 we have c1 eaned,evaporation;.Pond #1 and possib y
<br /> �z e•
<br /> � Pond #2 MMM estimate :this. cleaning activity wi l be completed ;
<br /> t x s s..
<br /> � Eby August 1 ,' 19$2r In the ;Inter�im perlod,� werequest permission .
<br /> t.
<br /> "to resume ruse `of Pon d" unt► 1 the clean i ng operat ion scan be ��
<br /> rought to completion:"� At :that .time'" P n �� � #
<br /> �° • ^ '"� �,``�° ��� " , 9m o d, #5 w► 1 1 be pumped V i.
<br /> free of_ any existing fluids The pond boftom will 36e dried
<br /> .. "and the requested liner additions will be placedC
<br /> e Viyaa,A " b r :fx 'Ll .,.` ,
<br /> Y
<br /> .. ^z�t
<br /> y'E Y>
<br /> The transfer of wastept aced in' Trench #3 'wh I ch' caused an`� A�
<br /> vqHZS gas reaction"was .' i►scontinued as' soo ' a'sthe problem"was���,��q
<br /> � r "� � notedt�(e intend to`place,.the .rdri 11 ingmuds "from Ponds 1#1 and 1�2Wil
<br /> Trench #3; however,` this: waste transfer wi it not take ,p1aCe�
<br /> unt I 1 the 'if r► 11 i n muds have been d r i ed I f the *mud ►s;'not � a ,
<br /> s 9 fie, .
<br /> ° z r 'rx-accompan i ea.,by "substant I al qu'ant'►t I es of water, the,HZS gas�re=1,,,�
<br /> ' ►o"n 'irrtlnot recur.'' In �additlon, �before any: waste transfers � r�
<br /> , � �takes place`11 we'willdo the necessary chemical,`^analysis to establ ►sh ,
<br /> �that the waste transfer does not involve ►ncompat►ble materials � 4
<br /> # ':F''4, F, "•'.+'yi K d`et r°{s a* a c prit.] °v" _�, ' �vv- v§ ..ua' x 't • t �' k
<br /> «S1dewaI I l ►ne'rs ' in Group 1`;disposal .trenches,' rn our opinion,ys' rrr a,
<br /> 1d"o not materially protect"againstlateralmigratlon. 't If the
<br /> renches are constructed' Un accordance with the SiteOperations ° s
<br /> .ice � fi� � 14t Plan, 'the only"material downgradient from any "of the Group 1 _, ` .=
<br /> Trenches will be' another Group1 Trench contain►n�7 s imi lar types "
<br /> 7 Yp
<br /> waste ff 1 i�ers are to be effective, they should be placed � ? �
<br /> on the west wall of the final trench constructed 'in thi's series. � ,
<br /> We request that you'_ consider these facts and the informations -_
<br /> q ,�, . . x
<br /> > � ,subm i tted with our operations plan before requiring the use of
<br /> "sidewall 1 ►Hers in the disposal trenches. We will await your z s}kfiga � i
<br /> ��r � decision on"this Issue, prior to completion of Group 1 Trench #4K �
<br /> 4
<br /> y t sa`� rF1 m4 C sX�1Ca ra<M+j�°'r� hig :^tT sus =` n s ;r- fpi a ,d;". ,'ri 1 n,} 'd. 'r3a.kf :t�;,a;•}ri ' s_U
<br /> A r 4K
<br /> 5 As discussed above, recently completed evaporation Pond #5 currently
<br /> contains d r i 11 in mud waste. We feel that the correction developed;
<br /> w w t your staff will resolve thep roblem with the Pond #5 liner.
<br /> r xA We will make every effort to complete the correction requiredAM-
<br /> 4y
<br /> M?' f
<br /> on the time interval requested; however, it will be necessary 'toR� ,
<br /> resume use of Pond #5 until cleaning activity can be completed .
<br /> Again, we request your approval to resume use of Pond #5 sincere
<br /> ex!sting 1iner was placed and compacted to recommended States
<br /> -
<br /> r ' '`� f; # specification and permeability values were obtained a full order
<br /> Of,magnower an itude lthan Class 11-1 requirements
<br /> .kk m a R a+ror i+ '
<br /> s 'hn�r ,✓+� . .. ;':� a y.
<br /> � �, 6 `Freeboard i n Ponds #1 , '#4 and, #5 has' been establ i shed by 'placement '
<br /> of. additional compacted fill material ,A1 l contain ment embank ^� r �
<br /> s.. Y^ "" ;s •.. hwM u+`�"` ,.xt
<br /> . mints are in place and the required levels of freeboard have
<br /> S;. �nx
<br /> beenestabl i shed at the date of th I swr►t I ng uY t� �;aC° r"'`ri"8'11 Wl
<br /> 3�s .}�r%'3
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<br /> .�" '`�' � owl �' it, �� + 'r ��* d ". r�`'''t
<br /> '6`"e'.4s r =a+ ' .+ � ''"€*4 ` �"`'
<br /> y' _���°'r ;N, r x; ,
<br /> �"^''F ,'E,� 8��#y_ii �a„' ` ',• a ' .DKK h,e "” .
<br /> Beta ssociates Q
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