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<br />Mr. David Berry <br />October 4, 1988 <br />Page 8 <br />Site 301 - <br />Please refer to above comments on carbonate analysis. <br /> <br />Data Presentation and Analysis <br />This section discusses the results of the 1986 to 1987 sampling program. <br />Some general questions are presented, followed by a more specific discussion <br />categorized by sample site type and location. <br />General Questions /J{el Q a~ y,,o,e i'lone JS(vc> v.~ wJ~ <br />1) Our review of the various data indicates that water quality samples and <br />~ discharge measurements are not always taken concurrently. It is <br />~' imperative that quality and discharge are collected at the same time <br />and at the same location to allow proper analysis of trends in the <br />data. For example, increased total dissolved solids may occur solely <br />as a result of decreased discharge; however, the possible relationship <br />cannot be analyzed correctly if water quality and discharge data <br />collected at different times. Please verify that all discharge and <br />water quality data for a specific time and site will be collected <br />concurrently. <br />2y, The detection limit used for mercury is consistently above the material <br />\\\ damage standard. The detection limit should be lowered to allow <br />comparison with the .00005 mg.l. (total recoverable) standard. Please <br />discuss this problem, and if a lower detection limit is not possible <br />due to s~laboratory analysis constraint, an explanation must be <br />provided. ~ <br />3~ We note that the total values for calcium and sodium (Site R); and, <br />`calcium, magnesium and sodium (Site D), are less than the dissolved <br />values for these constituents. ease review this problem and adjust <br />analytical procedures as needed. -' <br />`l4~/ The TR 86-8-1 (Map 14A) indicates a possible bedrock well (solid blue <br />''\ dot) located in Section 31, northeast of Pinnacle Peak. The dot is not <br />labeled, it also appears on Figure 3. Is this indeed a well location? <br />Please explain and revise the maps if necessary. <br />5 'Alluvial wells 009-5-10 and 001-5-5 are depicted on Map 14A by the <br />solid dot (bedrock well) symbol. Please revise the map to indicate the <br />correct (Hollow dot) symbols for these wells. <br />5Q,e'~ Please plot the locations of springs EP-87-1, EP-87-2, and M-2-87 on <br />the spring location map. <br />