Ground-Water Information Center Water Quality Report Site Name: GLWQD MONITORING WELL * YUKON  Report Date: 4/19/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 253165 / 235475 Sample Date: 11/9/2021 10:21:00 AM Location (TRS): 01S 04E 13 DBDA Agency/Sampler: MBMG / ENGLISH, ALAN Latitude/Longitude: 45° 44' 54" N 111° 10' 11" W Field Number: 235475 Datum: NAD83 Lab Date: 12/13/2021 6:55:19 AM Altitude: 4526.74 Lab/Analyst: MBMG / TIMMER, JACKIE County/State: GALLATIN / MT Sample Method/Handling: PUMPED / ru:1 ra:0 fu:2 fa:2 Site Type: WELL Procedure Type: DISSOLVED Geology: 112SNGR Total Depth (ft): 73 USGS 7.5' Quad: BOZEMAN HOT SPRINGS SWL-MP (ft): 32.26 PWS Id: Depth Water Enters (ft): 58 Project: GALVAL, GWAAMON, GWCP08,  GLWQDPHARM, NGWMN-MONTANA, BWIP4CSWL1, GWCP08MON,  BWIP4C, BWIP4CCHEM Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 75.190 3.752 Bicarbonate (HCO3) 309.160 5.067 Magnesium (Mg) 16.760 1.379 Carbonate (CO3) 0.000 0.000 Sodium (Na) 8.750 0.381 Chloride (Cl) 4.980 0.140 Potassium (K) 3.380 0.086 Sulfate (SO4) 29.240 0.609 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 1.570 0.112 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.120 0.006 Silica (SiO2) 22.050 Orthophosphate (as P) 0.030 J 0.000 Total Cations 5.604 Total Anions 5.935 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.330 J Strontium (Sr): 202.300 Antimony (Sb): <0.100 U Chromium (Cr): 0.410 J Nickel (Ni): <0.100 U Thallium (Tl): <0.100 U Arsenic (As): 0.440 Cobalt (Co): <0.100 U Niobium (Nb): 0.430 J Thorium (Th): <0.100 U Barium (Ba): 181.920 Copper (Cu): 2.860 Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 8.170 Palladium (Pd): <0.100 U Titanium (Ti): 0.320 J Boron (B): 11.660 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): 0.250 J Bromide (Br): <10.000 U Lead (Pb): <0.060 U Rubidium (Rb): 1.480 Uranium (U): 2.110 Cadmium (Cd): <0.100 U Lithium (Li): 2.390 J Silver (Ag): <0.100 U Vanadium (V): 1.710 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 9.770 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 314.18 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 470.96 Hardness as CaCO3: 256.73 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 514.9 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 478.72 Alkalinity as CaCO3 (mg/L): 253.43 Phosphorus, TD (mg/L): 0.040 J Field pH: 7.39 Ryznar Stability Index: 7.010 Field Nitrate (mg/L): NR Lab pH: 7.43 Sodium Adsorption Ratio: 0.2444 Field Dissolved O2 (mg/L): 7.370 Water Temp (°C): 10.9 Langlier Saturation Index: 0.210 Field Chloride (mg/L): NR Air Temp (°C): 8 Nitrite (mg/L as N): <0.010 U Field Redox (mV): 139.2 Nitrate + Nitrite (mg/L as N) 1.460 Hydroxide (mg/L as OH): 0.000 Lab, Dissolved Organic Carbon (mg/L): NR Total Kjeldahl Nitrogen (mg/L as N) NR Lab, Dissolved Inorganic Carbon (mg/L): NR Lab, Total Organic Carbon (mg/L): NR Total Nitrogen (mg/L as N) NR Acidity to 4.5 (mg/L CaCO3) NR Acidity to 8.3 (mg/L CaCO3) NR As(III) (ug/L) NR As(V) (ug/L) NR Total Susp Solids (mg/L) NR Notes Sample Condition: CLEAR Field Remarks: Lab Remarks:

Explanation: mg/L = milligrams per Liter; µg/L = micrograms per Liter; ft = feet; NR = No Reading in GWIC Qualifiers: J = Estimated quantity above detection limit but below reporting limit; P = Preserved sample; S = Method of standard additions; U = Undetected quantity below detection limit; * = Duplicate analysis not within control limits; ** = Sum of Dissolved Constituents is the sum of major cations (Na, Ca, K, Mg, Mn, Fe) and anions (HCO3, CO3, SO4, Cl, SiO2, NO3, F) in mg/L. Total Dissolved Solids is reported as equivalent weight of evaporation residue. Disclaimer These data represent the contents of the GWIC databases at the Montana Bureau of Mines and Geology at the time and date of the retrieval. The information is considered unpublished and is subject to correction and review on a daily basis. The Bureau warrants the accurate transmission of the data to the original end user. Retransmission of the data to other users is discouraged and the Bureau claims no responsibility if the material is retransmitted.