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Table 2.3. Baseline Groundwater Sampling Plan - Final (1/4/08) <br />Centennial-Indian Springs -Powertech Uranium Corporation <br />R Squared, Inc. <br /> lT:?riioum' _ _ - }. vu?;?ied ?un?her al Evlimmid Number t, IF IF] I) 0C Fu mL:r nt <br /> <br />Gant mmont kcp r rp Limn ?1.. l ?ItQ( Smnplrs Ihl Sampl ec Filler <br />- <br />' <br />(lml I?r(tiF <br />S?mprr fir lrl fima <br />.? nuh n" if Parimet<r <br />? <br />l <br />Si dpi } Anil, n, it ki, IhiA 40) u nl", olhrrwiti'c giiritiat m F <br />re rrrxuun <br />All in um <br />{Irum rull??aoul <br /> r <br />jii('I <br />mc?I-I b, uikuug t\nlu fit. VTS %]SID ni I"ir(d Dup Inl; 1,1 I lahnnr Gdd> ant uni ld) <br /> , DVP III--, Bl-k Hhml. I') <br /> <br />Nitrate/Nitrite as N <br />11 (g) <br />E353.2 <br />0.1 <br />I per 20 samples 1 per 20 <br />l <br />NA <br />0 1 per 20 <br />l <br />No pH < 2 H2SO4 <br />ol to 4 °C <br />C <br />l- 250 ml poly <br />28 days <br />Phos hate P04 as P) none E371.12 0.7 0.01 samp <br />es samp <br />es o 28 days <br />Calculated Parameters/Data Quali <br />Anions (meq/L) NA <br />Cations (meq/L) NA <br />Cation - Anion Balance (mg/L) Standard Methods 20th NA <br />Hydroxide <br />none Edition & ASA Mono. <br />N <br />A <br />NA <br />Total dissolved solids #9, Part 2, Method l0- <br />3 <br />4 (SAR) O <br />Total dissolved solids - ratio . NA <br />Sodium Absorption Ratio <br />(SAR) NA <br />Field Parameters <br />Depth to Water (ft) NA SOP 210 0.01 NA <br />Total Depth (ft) NA 0.01 NA <br />Water Elevation (ft AMSL) NA SOP 6.0 0.01 NA <br /> Analyze <br />Temperature CC) none SOP 8.0 0.1 immediately <br />Specific Conductance 0.001 too, I Analyze <br />(mmhos/cm) none SOP 8.0 (range dependent) NA NA NA NA NA NA NA immediately <br /> Analyze <br />pH (standard units) 6.5-9.0 SOP 8.0 0.01 immediately <br /> Analyze <br />Oxidation/Reduction Potential (mV) none SOP 8.0 0.01 immediately <br /> Analyze <br />Dissolved oxygen (mg/L) none SOP 8.0 0.01 immediately <br />Notes: <br />(a) Proposed/equivalent analytical methods may be used pending EPA approval. <br />(b) As applicable to the Method. <br />(c) Assumes no dedicated or disposable sampling equipment will be used and therefore, equipment blanks are necessary for groundwater, surface water and sediment samples. <br />(d) Parameters requiring the same preservation, similar container type and being analyzed by the same laboratory may be collected as one aggregate volume. <br />(e) MCLs are for total analyte concentrations only. <br />(f) The reporting limit (RL) is equivalent to the practical quantitation limit (PQL). <br />(g) Sum of MCLs for nitrate as nitrogen (10 mg/L) and nitrite as nitrogen (I mg/L). <br />Total number of groundwater samples: 49 (26 existing RME wells + 23 new wells) <br />Refer to map XXX for monitoring well locations. <br />SAP-Final-Tables 2-2 through 2-6 8/20/2008 <br />Attachment B