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Diamond Pet Food Processors of Ripon California LLC January 28, 2011
<br /> Combined Annual and Fourth-Ouarter 2010 Groundwater Monitoring Report Page 3 of 8
<br /> Calcium
<br /> Wells OB-10, OB-14, OB-16 through 013-18, OB-20, OB-23, TH-2, TH-4, TH-5, TH-7, TH-9,
<br /> TH-10, M-7-A, M-11-C,M-19-C, and PW-6 through PW-8 meet WQPS for calcium.
<br /> Magnesium
<br /> Wells 013-9, 013-10, 013-12, OB-15 through 013-23, TH-2, THA, TH-5, TH-7, TH-9, M-7-A,
<br /> M-11-C, M-19-C, PW-7, and PW-8 meet WQPS for magnesium.
<br /> Sodium
<br /> Wells OB-2, 013-3, 013-5, OB-6, 013-8 through 013-12, OB-14 through 013-28, TH-4 through
<br /> TH-9, M-7-A, M-11-C, M-19-C, and PW-6 through PW-8 meet WQPS for sodium.
<br /> Potassium
<br /> Wells 013-10, 013-12, 013-14, 013-16, 013-17, OB-21, TH-2,TH-5, TH-7, TH-9, TH-10, M-7-
<br /> A, M-11-C, M-19-C, and PW-6 through PW-8 meet WQPS for potassium.
<br /> Bicarbonate
<br /> Wells 013-9, 013-10, OB-16 through OB-18, OB-20, 013-23, TH-2, TH-4 through TH-7, TH-9
<br /> M-7-A, M-11-C, M-19-C, and PW-6 through PW-8 meet WQPS for bicarbonate.
<br /> Sulfate
<br /> Wells 013-1, 013-5, OB-9 through 013-11, 013-13 through 013-20, 013-22, OB-23, OB-26
<br /> through 013-28, TH-2, TH-4 through TH-7, TH-9, TH-10, M-7-A, M-11-C, M-19-C, and PW-6
<br /> through PW-8 meet WQPS for sulfate.
<br /> Chloride
<br /> Wells 013-1, 013-2, OB-6, OB-8 through OB-10, 013-12, OB-14 through 013-23, OB-26 through
<br /> 013-28, TH-2, TH-4 through TH-7, TH-9, TH-10, M-7-A, M-11-C, M-19-C, and PW-6 through
<br /> PW-8 meet WQPS for chloride.
<br /> Nitrate
<br /> Wells 013-4, OB-10 through 013-13, OB-15 through 013-17, OB-20, 013-22, 013-23, OB-25,
<br /> TH-2, TH-5, TH-7, TH-8, TH-10, TH-11, M-7-A, M-19-C, and PW-6 through PW-8 meet
<br /> WQPS for nitrate.
<br /> Water-Quality Diagrams (Stiff Patterns)
<br /> Stiff patterns are graphic representations of water quality and are created by plotting the
<br /> concentrations of anions and cations (in meq/L) in a sample on a horizontal axis and then
<br /> connecting the dots to create a unique pattern for each well. Stiff patterns for all wells are
<br /> presented in Attachment A.
<br /> L&A's Five-Pear Water-Quality Report, dated November 17, 2008, categorized all wells by
<br /> their Stiff patterns to illustrate a progression from relatively undegraded groundwater to mill
<br /> effluent. Semiperched zone well 013-16, upper zone well TH-5, and intermediate zone well TH-
<br /> 6 are the best examples of the least-degraded water-quality category. These wells are located in
<br /> the southeast corner of the site adjacent to the Stanislaus River and groundwater samples likely
<br /> are composed mainly of river water. The small size of their Stiff patterns (relative to most other
<br /> 10107.01 Task 2 Lan rence 8 Associates
<br /> M-ICLIENTSI Diammtd Pet Foods1010107.01-Groundiater MonitoringI Grmmdivater Monitoring1201012nd Half 20101annual-2nd Half
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