Ground-Water Information Center Water Quality Report Site Name: US GEOLOGICAL SURVEY - JOHN LEWTON  Report Date: 4/24/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0199 / 133174 Sample Date: 8/21/2008 2:34:00 PM Location (TRS): 01S 04E 09 BAAA Agency/Sampler: MBMG / DCM Latitude/Longitude: 45° 46' 20" N 111° 14' 16" W Field Number: 133174 Datum: NAD83 Lab Date: 10/29/2008 Altitude: 4436.58 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: GRAB / 4230 Site Type: WELL Procedure Type: DISSOLVED Geology: 110SNGR, 111SNGR Total Depth (ft): 97.5 USGS 7.5' Quad: BELGRADE SWL-MP (ft): 23.18 PWS Id: Depth Water Enters (ft): NR Project: GWAAMON, GWCP08, NGWMN-MONTANA,  GWCP08MON, BWIP4C, BWIP4CCHEM, GALVAL Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 34.300 1.712 Bicarbonate (HCO3) 131.500 2.155 Magnesium (Mg) 10.800 0.889 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.430 0.193 Chloride (Cl) 2.170 0.061 Potassium (K) 1.350 0.035 Sulfate (SO4) 40.800 0.850 Iron (Fe) <0.003 0.000 Nitrate (as N) <0.5 P 0.000 Manganese (Mn) <0.001 0.000 Fluoride (F) 0.188 0.010 Silica (SiO2) 12.900 Orthophosphate (as P) <0.05 0.000 Total Cations 2.833 Total Anions 3.076 Trace Element Results (µg/L) Aluminum (Al): 1.800 Cesium (Cs): <0.04 Molybdenum (Mo): 1.110 Strontium (Sr): 213.000 Antimony (Sb): <0.11 Chromium (Cr): <0.07 Nickel (Ni): <0.17 Thallium (Tl): <0.04 Arsenic (As): 0.523 Cobalt (Co): <0.07 Niobium (Nb): <0.03 Thorium (Th): <0.1 Barium (Ba): 46.200 Copper (Cu): 0.453 Neodymium (Nd): <0.22 Tin (Sn): <0.06 Beryllium (Be): <0.16 Gallium (Ga): <0.07 Palladium (Pd): 0.366 Titanium (Ti): 0.202 Boron (B): 6.600 Lanthanum (La): <0.85 Praseodymium (Pr): <0.16 Tungsten (W): <0.05 Bromide (Br): <50 Lead (Pb): <0.56 Rubidium (Rb): 0.950 Uranium (U): 1.000 Cadmium (Cd): <0.13 Lithium (Li): 2.680 Silver (Ag): <0.07 Vanadium (V): 0.455 Cerium (Ce): <0.54 Mercury (Hg): NR Selenium (Se): <0.38 Zinc (Zn): <0.27 Zirconium (Zr): <0.11 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 171.13 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 238.1 Hardness as CaCO3: 130.1 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 287 Field Alkalinity as CaCO3 (mg/L): 100 PCP (µg/L): NR Lab Conductivity (µmhos): 297 Alkalinity as CaCO3 (mg/L): 108.26 Phosphorus, TD (mg/L): 0.035 Field pH: 7.3 Ryznar Stability Index: 8.780 Field Nitrate (mg/L): 0.000 Lab pH: 7.08 Sodium Adsorption Ratio: 0.1526 Field Dissolved O2 (mg/L): 5.180 Water Temp (°C): 7.9 Langlier Saturation Index: -0.850 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): 182 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.