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<br />Nataorological Data <br />PraciDitntioa data me obtained primarily nt Cha Seneca iI !line Nataorological Station <br />using a 8elfort Waighing Bucket Raia Gaga. Daily DreclDitatioa data for this year nra <br />presented is Table 1. Total monthly preciDitntioa date Collected since 1951 nra presented <br />in Table 1 (Appendix A). Where indicated, data from eha O.S. Weather 9arvice - Hayden <br />Station rare used. Temperature, rind speed and direction darn are presented is Appendix <br />H. Tha dsta in Appendix 8 le from the Seneca II-W Hine Nataorological Station located <br />approximately seven miles southreet of the 9eaeca II Nina. Climatic coadi [ions nra <br />similar betwen the tro minas. <br />Data from the National Climatic Datn Cantor for the Hayden Station me used to evaluate <br />the yreciyitntioa trend. yoz this year, 17.56 inches of precipitation roe measured, which <br />roe 1.05 inches greater than the 1961-1990 average. October, December, Narch, June, July, <br />and August rare all helot avarage. Saorpack ruaof f, ae estimated by totaling November <br />through April precipitation values, roe 11.35 iachea, rhicb roe 3.77 inches above the <br />1961-1990 avarage. January precipitation, rbi ch was 3.07 iachae shove avarage, accounted <br />for much of this increase. <br />The Senacn ii pzaciDita[ioa gage measured 19.05 iachae this year. Thin value ie 1.98 <br />iachae greater than the 1951-1996 average. <br />Ground Water <br />Water Levels. Water level data are presented in Appendix C. Water level reports for data <br />collected this year are presented immediately after the rater level hydrograph of all <br />historic date for each raeDactiva tell is the same appendix. By presentiaq ell IIlatoric <br />data, trends related to seasonal and annual variability and possible mining related <br />impacts are more clearly evident. Table 3 (Summary of Ground Water Monitoring Walls) <br />is presented ne a reference for the reader. No aer relle rare drilled in 1996. Three <br />xalle (SWC35, SWC37, end SN037) were abandoned thls year since they were to be mined out. <br />Well abandonment form have bees sent to the CDMG. Water level meneuremante obtained in <br />noa•floriaq calla are taken rith rater level indicator, or is the ease of n far shallot • <br />alluvial rolls, dlrectly from a erne! tape. Pressure readings lin psi) obtained from <br />2 <br />