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Groundwater Sampling Color Key <br />Sampling: Major & Minor Analytes (Laboratory, NS-1GW, 5 bottle), includes field parameters (Temp, pH, <br />Conductivity) <br />Sampling: Major Analytes (Laboratory, NS-2GW, 3 bottle), includes field parameters (Temp, pH, Conductivity) <br />and an annual NS-1GW sample <br />Sampling: Field Parameters: Temp, pH, Conductivity and/or NS lab: Alkalinity, Chloride, & Conductivity <br />Aquifer Color Key <br />Notes <br />Wells currently equipped with WL continuous data <br />Perched <br />Historic Upper (Perched & <br />A -Groove) <br />loggers (WL CDL) are denoted with red font. NS may <br />relocate this equipment as necessary to better <br />A -Groove <br />monitor mining conditions. <br />B-Groove <br />Well name with bold font indicates AG or BG GMW <br />Historic Lower <br />(B Groove & DS) <br />which is proximal to current mining and currently has <br />DS <br />more frequent water quality monitoring. <br />Well Name <br />Aquifer <br />Groundwater Quality <br />Monitoring <br />Sample Frequency <br />(verbiage) and Sample <br />Type (color) <br />Potentiometric Water <br />Level <br />Monitor Frequency <br />(verbiage) <br />89-3 <br />Perched <br />Annual <br />Quarterly <br />I13I-1 <br />Perched <br />Annual <br />Quarterly <br />I11I-5 <br />Perched <br />Annual <br />Quarterly <br />PA-1 <br />Perched <br />Annual <br />Quarterly <br />89-2 <br />A -Groove <br />Quarterly <br />Quarterly <br />90-1 <br />A -Groove <br />Annual <br />Quarterly <br />90-4 <br />A -Groove <br />Quarterly <br />Quarterly <br />AG-1 <br />A -Groove <br />Quarterly <br />Quarterly <br />AG-2 <br />A -Groove <br />Annual <br />Quarterly <br />IRI-4 <br />A -Groove <br />Annual <br />Quarterly <br />89-1 <br />B-Groove <br />Quarterly <br />Quarterly <br />90-3 <br />B-Groove <br />Quarterly <br />Quarterly <br />BG-1 <br />B-Groove <br />Monthly <br />Monthly <br />B-Groove <br />Monthly <br />Monthly & WL CDL <br />B-Groove <br />Monthly <br />Monthly & WL CDL <br />BG-7 <br />B-Groove <br />Annual <br />Annual <br />BG-10 <br />B-Groove <br />Quarterly <br />Quarterly <br />BG-11 <br />B-Groove <br />Quarterly <br />Quarterly & WL CDL <br />I11I-6 <br />B-Groove <br />Annual <br />Annual <br />IRI-11 <br />B-Groove <br />na <br />Annual <br />DS-2 <br />DS <br />Annual <br />Annual <br />DS-3 <br />DS <br />Annual <br />Quarterly & WL CDL <br />DS-6 <br />DS <br />Annual <br />Quarterly & WL CDL <br />DS-7 <br />DS <br />Annual <br />Quarterly & WL CDL <br />DS-8 <br />DS <br />Annual <br />Annual <br />DS-9 <br />DS <br />Annual <br />Annual <br />DS <br />Annual <br />Quarterly & WL CDL <br />IRI-7 <br />DS <br />Annual <br />Annual <br />TH75-66 (USGS) <br />Lower (B & DS) <br />na <br />Annual <br />TH75-11B (USGS) <br />Lower (B & DS) <br />na <br />Annual <br />TH75-6A (USGS) <br />Upper (Pr & A) <br />na <br />Annual <br />TH75-11A (USGS) <br />Upper (Pr & A) <br />na <br />Annual <br />Water Supply Wells <br />WSW-2 <br />A -Groove <br />Monthly <br />na <br />Quarterly <br />na <br />Annual <br />na <br />WSW-3 <br />A -Groove <br />Monthly <br />na <br />Quarterly <br />na <br />Annual <br />na <br />WSW-4 <br />A -Groove <br />Monthly <br />na <br />Quarterly <br />na <br />Annual <br />na <br />Table 1: NS GMWs Sampling/Monitoring Schedule - Effective January 1, 2022 <br />Daub & Associates, Inc. Page 4 November 2021 <br />