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<br /> H�stprical Mpnthly,,i�e 3� Antiei�ate293d,Numbera NumbexeAndiTk.EEype of _ _ }Numbex and Type ofi`
<br /> ^«�., _E E€1E EEEbf EEE F� r' '�:RGea. `k K.,'R„ji�� �`•.. i '�PdPo-�,�it;'� ,�'1��..e� ..1:,14fY Isis:
<br /> +F[ Employment..Daily- of:G'us#ornerson', '" ,Fixtures,in E-m�loXeel" _Fixtures rn.Customer-
<br /> F '9 aa°a,�.. -r. -c t - - .r €°y r9 '° - ra :.f:E;'ili7 t €a T `�a k -° n:,i a <.,_. 9a -�„ ¢€ "ate P.ztse3alm:1€=€Hit 3d
<br /> ll Averages For€Eac € a Datly' 3asis � Restroprns eE} ,;Restrooms
<br /> ;aim •aea;:ea.a;':r "i?iii`"?€? `.s ,lr,r l•>a
<br /> .:.». „ �d°�sebl,. f€IEE�E7aE€.`b%s�r1.'»re d6k€•¢'s€.,u:=E.t:°F(:;;p,.s..', Esds,,¢,H€.€,€» Pt- �i;p•€ :s;PZ�r^ it'I,tpl;.-«.;:,;r
<br /> Mornth 'Throughout a €€ €
<br /> INN` €:,f s�@a � G 1;. �, ,€ :}; �i. _>3
<br /> .Ar.r. �.e9Pe:i1a88�x93. pg�g{g,'€ N`EtE �..: Bd="B{"E<F:E'- Miff 3.� � ,t.,.: �'3' 11 sts¢ �`�Y�s��t'�:'1's>sPiE?tl... �q«.3.....
<br /> t_ e}ear??- g.3. €£,n -i94;,.';•- 99`"« J• _ "..:@:kch¢& .,<, e.�E?. : s.i},>
<br /> °,?8i:s,°d.z?.,°�e..,,. € �€f',�'; "€'"�.� 9>•: }?'..fE,,
<br /> ;�`ypical, ear
<br /> ,., ..... _._ .�.cam_-. , m�,..17 s 9� �s-`%t��;�€9."'°g`4 E,:-a`- €��, ��€,.-€'•... �'zid�€za�€.��SfG"i ��
<br /> J 12 J 7 Anticipate an average One new toilet fixture each One new toilet fixture
<br /> F 10 A 10 of 25 Customers daily. for Men's and Women's each for Men's and
<br /> M 7 S 14 e.g., One day may be Employee Restrooms, plus Women's Customer
<br /> A 7 O 25 10, another day 40. sinks. Restrooms, plus sinks.
<br /> M 7 N 15 Average=25
<br /> J 9 D 22
<br /> Daily Weighted Average= Daily Average= Max 25 Emp.x 15 gallons/day= 2 x 150 gallons/day=300
<br /> 12 Employees/Day 25 Customers/Day 375 gallons/day gallons/day
<br /> e
<br /> In the chocolate making process, certain foods are used such as whey, milk, eggs and cocoa. It is
<br /> emphasized that these foods and food-byproducts will not be introduced into the septic system.
<br /> This will dramatically reduce the organic loading. All these types of foods will be handled as
<br /> solid wastes and disposed of under proper protocol. This may include packaging the wastes into
<br /> waxed or plastic lined boxes or plastic bags before placing them into a dumpster,
<br /> There will be no employee cooking within kitchen/office areas in any of the existing or future --
<br /> buildings, and consequently no need for garbage disposals. The characteristics of the wastewater
<br /> flow will be predominately blackwater from toilets, with a comparatively small volume of
<br /> graywater from sinks, or other sources of graywater. Additional wastewater constituents may
<br /> consist of coffee,juices or other similar type liquids that may be introduced into the septic system.
<br /> From the anticipated wastewater characteristics described above, the nitrogen emanating from the
<br /> project may be at a higher concentration than what would normally be found in a typical domestic
<br /> or household system. This can be attributed to the lack of a dilution effect that graywater would
<br /> provide, such as showers, laundry, and dishwashing. The scientific literature cites nitrogen
<br /> concentrations in residential septic effluent typically ranging from 17 mg N/L for basins, sinks, etc.
<br /> I to 140 mg NIL for toilet wastes. Therefore, considering a 70/30 percent usage for toilet water
<br /> volume and sink water volume, respectively, a value of 103 mg NIL of septic effluent will be used
<br /> to calculate nitrate-nitrogen loading for this project. In comparison, a value of 65 mg N/L is
<br /> typically used for residential calculations.
<br /> B. CALCULATED NITRATE-NITROGEN LOADING
<br /> The calculated or estimated nitrate-nitrogen impact to the soil and ultimately to the groundwater is
<br /> w difficult to determine due to the large number of variables involved. These include: 1.) Variable
<br /> number of Employees and Customers, 2.) Impact from other nitrogen sources, 3.) Variability in
<br /> wastewater flows and nitrogen concentrations, 4.) Changes in groundwater directional flow,
<br /> elevation, and Mokelumne River influences, and 5.) Denitrification potential within the soil vadose
<br /> zone environment.
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<br /> CFiesixConsufting
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