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ACZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 <br />Natural Soda, LLC <br />Project ID: <br />Sample ID: WSW-4 <br />Inorganic Prep <br />ACZ Sample ID: <br />Date Sampled: <br />Date Received: <br />Sample Matrix: <br />L94529-01 <br />05105125 11:23 <br />05108125 <br />Groundwater <br />i?�aramaeravA o�raihrr: Dilution •: cult Qu tQ Inis 1111L PAL kate Ana►ys■ <br />Lab Filtration (0.45um) EPA 200.7/200.8/3005A Filter 05/13/25 15:10 smw <br />& Acidification <br />Nitrogen, total Kjeldahl EPA 351.2 05/20/25 14:34 ptw <br />Phosphorus, total EPA 365.1 05/13/25 13:55 ptw <br />Metals Analysis <br />i�meter <br />aFA aelT.r. <br />.nrnirr <br />-ar� <br />►�■ <br />Aluminum, dissolved <br />EPA 200.7 <br />1 <br /><0.07 <br />U <br />mg/L <br />0.07 <br />0.25 <br />05/19/25 11:28 <br />wtc <br />Arsenic, dissolved <br />EPA 200.8 <br />1 <br /><0.0002 <br />U <br />mg/L <br />0.0002 <br />0.001 <br />05/15/25 12:32 <br />gjl <br />Barium, dissolved <br />EPA 200.7 <br />1 <br />0.107 <br />* <br />mg/L <br />0.009 <br />0.035 <br />05/19/25 11:28 <br />wtc <br />Beryllium, dissolved <br />EPA 200.7 <br />1 <br /><0.01 <br />U <br />mg/L <br />0.01 <br />0.05 <br />05/19/25 11:28 <br />wtc <br />Boron, dissolved <br />EPA 200.7 <br />2 <br />0.214 <br />mg/L <br />0.06 <br />0.2 <br />05/19/25 19:10 <br />msp <br />Cadmium, dissolved <br />EPA 200.7 <br />2 <br /><0.016 <br />U <br />mg/L <br />0.016 <br />0.05 <br />05/19/25 19:10 <br />msp <br />Calcium, dissolved <br />EPA 200.7 <br />2 <br />2.60 <br />mg/L <br />0.2 <br />1 <br />05/19/25 19:10 <br />msp <br />Chromium, dissolved <br />EPA 200.7 <br />1 <br /><0.02 <br />U <br />* <br />mg/L <br />0.02 <br />0.05 <br />05/19/25 11:28 <br />wtc <br />Copper, dissolved <br />EPA 200.7 <br />1 <br /><0.01 <br />U <br />* <br />mg/L <br />0.01 <br />0.05 <br />05/19/25 11:28 <br />wtc <br />Iron, dissolved <br />EPA 200.7 <br />2 <br /><0.12 <br />U <br />mg/L <br />0.12 <br />0.3 <br />05/19/25 19:10 <br />msp <br />Lead, dissolved <br />EPA 200.7 <br />1 <br /><0.03 <br />U <br />mg/L <br />0.03 <br />0.15 <br />05/19/25 11:28 <br />wtc <br />Lithium, dissolved <br />EPA 200.7 <br />1 <br />0.136 <br />mg/L <br />0.008 <br />0.04 <br />05/19/25 11:28 <br />wtc <br />Magnesium, dissolved <br />EPA 200.7 <br />1 <br />2.03 <br />* <br />mg/L <br />0.2 <br />1 <br />05/19/25 11:28 <br />wtc <br />Manganese, dissolved <br />EPA 200.7 <br />1 <br /><0.01 <br />U <br />mg/L <br />0.01 <br />0.05 <br />05/19/25 11:28 <br />wtc <br />Mercury, dissolved <br />EPA 245.1 <br />1 <br /><0.0002 <br />U <br />mg/L <br />0.0002 <br />0.001 <br />05/18/25 14:56 <br />rjw <br />Molybdenum, dissolved EPA 200.7 <br />1 <br /><0.02 <br />U <br />* <br />mg/L <br />0.02 <br />0.1 <br />05/19/25 11:28 <br />wtc <br />Nickel, dissolved <br />EPA 200.7 <br />1 <br /><0.008 <br />U <br />mg/L <br />0.008 <br />0.04 <br />05/19/25 11:28 <br />wtc <br />Potassium, dissolved <br />EPA 200.7 <br />1 <br />0.52 <br />B <br />mg/L <br />0.5 <br />1 <br />05/19/25 11:28 <br />wtc <br />Selenium, dissolved <br />EPA 200.8 <br />1 <br /><0.0001 <br />U <br />mg/L <br />0.0001 <br />0.00025 <br />05/15/25 12:32 <br />gjl <br />Silica, dissolved <br />EPA 200.7 <br />1 <br />12.9 <br />mg/L <br />0.2 <br />1 <br />05/19/25 11:28 <br />wtc <br />Sodium, dissolved <br />EPA 200.7 <br />2 <br />338 <br />mg/L <br />0.4 <br />2 <br />05/19/25 19:10 <br />msp <br />Strontium, dissolved <br />EPA 200.7 <br />1 <br />0.456 <br />* <br />mg/L <br />0.009 <br />0.045 <br />05/19/25 11:28 <br />wtc <br />Vanadium, dissolved <br />EPA 200.7 <br />1 <br /><0.01 <br />U <br />* <br />mg/L <br />0.01 <br />0.025 <br />05/19/25 11:28 <br />wtc <br />Zinc, dissolved <br />EPA 200.7 <br />2 <br /><0.04 <br />U <br />mg/L <br />0.04 <br />0.1 <br />05/19/25 19:10 <br />msp <br />Natural Soda LLC <br />Daub & Associates, Inc. Page 75 of 88 2025 2nd Quarter EPA Report <br />