Ground-Water Information Center Water Quality Report Site Name: BOZEMAN SOLVENT SITE * M-41  Report Date: 4/23/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2010Q0037 / 162179 Sample Date: 6/23/2009 8:45:00 AM Location (TRS): 01S 05E 36 CBCC Agency/Sampler: GLWQD / JBL Latitude/Longitude: 45° 42' 16" N 111° 3' 38" W Field Number: Datum: NAD83 Lab Date: 9/2/2009 Altitude: 4710 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: PUMPED / 4230 Site Type: WELL Procedure Type: DISSOLVED Geology: 120SDMS Total Depth (ft): 36 USGS 7.5' Quad: BOZEMAN SWL-MP (ft): 9.87 PWS Id: Depth Water Enters (ft): 10 Project: GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 84.600 4.222 Bicarbonate (HCO3) 351.600 5.763 Magnesium (Mg) 24.600 2.024 Carbonate (CO3) 0.000 0.000 Sodium (Na) 26.200 1.140 Chloride (Cl) 33.170 0.936 Potassium (K) 7.180 0.184 Sulfate (SO4) <25.0 0.000 Iron (Fe) <0.002 0.000 Nitrate (as N) 3.69 P 0.263 Manganese (Mn) 0.001 0.000 Fluoride (F) <0.5 0.000 Silica (SiO2) 80.200 Orthophosphate (as P) <0.5 0.000 Total Cations 7.578 Total Anions 6.962 Trace Element Results (µg/L) Aluminum (Al): <7.68 Cesium (Cs): <0.04 Molybdenum (Mo): 1.260 Strontium (Sr): 291.000 Antimony (Sb): 0.078 Chromium (Cr): 1.170 Nickel (Ni): <0.10 Thallium (Tl): <0.03 Arsenic (As): 3.670 Cobalt (Co): 0.109 Niobium (Nb): <0.04 Thorium (Th): <0.02 Barium (Ba): 73.400 Copper (Cu): 0.793 Neodymium (Nd): <0.05 Tin (Sn): <0.04 Beryllium (Be): <0.20 Gallium (Ga): <0.05 Palladium (Pd): <0.10 Titanium (Ti): <0.20 Boron (B): 25.300 Lanthanum (La): <0.02 Praseodymium (Pr): <0.02 Tungsten (W): <0.05 Bromide (Br): <500 Lead (Pb): <0.15 Rubidium (Rb): 1.470 Uranium (U): 9.410 Cadmium (Cd): <0.05 Lithium (Li): 2.730 Silver (Ag): <0.04 Vanadium (V): 10.500 Cerium (Ce): <0.02 Mercury (Hg): NR Selenium (Se): 0.707 Zinc (Zn): <0.91 Zirconium (Zr): 0.053 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 428.6 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 607.2 Hardness as CaCO3: 312.5 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 565 Alkalinity as CaCO3 (mg/L): 288.7 Phosphorus, TD (mg/L): 0.076 Field pH: NR Ryznar Stability Index: 6.084 Field Nitrate (mg/L): NR Lab pH: 8.14 Sodium Adsorption Ratio: 0.64 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: 1.028 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) NR Hydroxide (mg/L as OH): NR 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: 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.