Ground-Water Information Center Water Quality Report Site Name: US GEOLOGICAL SURVEY - JOHN LEWTON  Report Date: 4/26/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2011Q1054 / 133174 Sample Date: 4/14/2011 9:55:00 AM Location (TRS): 01S 04E 09 BAAA Agency/Sampler: MBMG / ZINDT, ERINN E. Latitude/Longitude: 45° 46' 20" N 111° 14' 16" W Field Number: TORG-133174 Datum: NAD83 Lab Date: 5/12/2011 Altitude: 4436.58 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: PUMPED / Site Type: WELL Procedure Type: DISSOLVED Geology: 110SNGR, 111SNGR Total Depth (ft): 97.5 USGS 7.5' Quad: BELGRADE SWL-MP (ft): NR 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) 36.800 1.836 Bicarbonate (HCO3) 128.500 2.106 Magnesium (Mg) 10.900 0.897 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.690 0.204 Chloride (Cl) 1.820 0.051 Potassium (K) 1.450 0.037 Sulfate (SO4) 38.790 0.808 Iron (Fe) <0.005 0.000 Nitrate (as N) 0.155 0.011 Manganese (Mn) 0.002 0.000 Fluoride (F) 0.168 0.009 Silica (SiO2) 12.100 Orthophosphate (as P) <0.1 0.000 Total Cations 2.980 Total Anions 2.985 Trace Element Results (µg/L) Aluminum (Al): <2.0 Cesium (Cs): <0.5 Molybdenum (Mo): 1.200 Strontium (Sr): 211.000 Antimony (Sb): <0.2 Chromium (Cr): <0.2 Nickel (Ni): <0.2 Thallium (Tl): <0.2 Arsenic (As): 0.459 Cobalt (Co): <0.2 Niobium (Nb): <0.5 Thorium (Th): <0.2 Barium (Ba): 43.800 Copper (Cu): <0.5 Neodymium (Nd): <0.2 Tin (Sn): <0.5 Beryllium (Be): <0.2 Gallium (Ga): <0.2 Palladium (Pd): <0.5 Titanium (Ti): 0.402 Boron (B): 7.550 Lanthanum (La): <0.2 Praseodymium (Pr): <0.2 Tungsten (W): <0.2 Bromide (Br): <50 Lead (Pb): <0.2 Rubidium (Rb): 0.926 Uranium (U): 1.030 Cadmium (Cd): <0.2 Lithium (Li): <2.0 Silver (Ag): <0.2 Vanadium (V): 0.697 Cerium (Ce): <0.2 Mercury (Hg): NR Selenium (Se): 0.206 Zinc (Zn): 1.080 Zirconium (Zr): <0.2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 170.25 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 235.7 Hardness as CaCO3: 136.75 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 290 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 346 Alkalinity as CaCO3 (mg/L): 105.8 Phosphorus, TD (mg/L): <0.025 Field pH: 5.78 Ryznar Stability Index: 8.189 Field Nitrate (mg/L): NR Lab pH: 7.63 Sodium Adsorption Ratio: 0.1861 Field Dissolved O2 (mg/L): NR Water Temp (°C): 6.92 Langlier Saturation Index: -0.280 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.05 Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.2 P 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) <1.0 P 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.