Laserfiche WebLink
2021 Groundwater Monitoring Report <br />www.arcadis.com <br />2021 Holcim FINAL GWMR i <br />Contents <br />Acronyms and Abbreviations ................................................................................................................................ iii <br />1 Introduction ...................................................................................................................................................... 1 <br />1.1 Site Location ............................................................................................................................................ 1 <br />1.2 Site History ............................................................................................................................................... 1 <br />1.3 Site Regulatory History ........................................................................................................................... 2 <br />1.3.1 Baseline Groundwater Monitoring Program ..................................................................................... 2 <br />1.3.2 November 21, 2008 Groundwater Monitoring Plan .......................................................................... 3 <br />1.3.3 February 17, 2009 Groundwater Monitoring Plan............................................................................. 3 <br />1.3.4 July 7, 2010 Groundwater Monitoring Plan ....................................................................................... 4 <br />1.3.5 October 17, 2014 Proposal to Remove Sodium as a Groundwater Quality Parameter ................ 4 <br />2 Groundwater Sampling Activities .................................................................................................................. 5 <br />3 Results .............................................................................................................................................................. 6 <br />3.1 Groundwater Elevations and Flow Characteristics ............................................................................. 6 <br />3.2 Analytical Results .................................................................................................................................... 6 <br />4 Conclusions and Recommendations ............................................................................................................ 8 <br />5 References ....................................................................................................................................................... 9 <br /> <br />Tables <br />Table 1 March 2021 Depth to Groundwater Measurements and Groundwater Elevations <br />Table 2 March 2021 Field and Analytical Results <br /> <br />Figures <br />Figure 1 Site Location Map <br />Figure 2 Groundwater Contour Map <br />Figure 3 Potassium to Sodium Ratio Time Series Graph <br />Figure 4 Total Dissolved Solids Time Series Graph <br />Figure 5 Sulfate Time Series Graph <br />Figure 6 Manganese Time Series Graph