Ground-Water Information Center Water Quality Report Site Name: US GEOLOGICAL SURVEY - JOHN LEWTON  Report Date: 4/19/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2002Q1254 / 133174 Sample Date: 5/14/2002 3:34:00 PM Location (TRS): 01S 04E 09 BAAA Agency/Sampler: MBMG / MGR Latitude/Longitude: 45° 46' 20" N 111° 14' 16" W Field Number: 133174 Datum: NAD83 Lab Date: 7/8/2002 Altitude: 4436.58 Lab/Analyst: MBMG / JMC County/State: GALLATIN / MT Sample Method/Handling: PUMPED / 6230 Site Type: WELL Procedure Type: DISSOLVED Geology: 110SNGR, 111SNGR Total Depth (ft): 97.5 USGS 7.5' Quad: BELGRADE SWL-MP (ft): 27.22 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) 39.000 1.946 Bicarbonate (HCO3) 142.500 2.336 Magnesium (Mg) 11.100 0.913 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.500 0.196 Chloride (Cl) 1.450 0.041 Potassium (K) 1.440 0.037 Sulfate (SO4) 43.700 0.910 Iron (Fe) 0.105 0.004 Nitrate (as N) <.5 P 0.000 Manganese (Mn) 0.017 0.001 Fluoride (F) 0.197 0.010 Silica (SiO2) 12.500 Orthophosphate (as P) <.05 0.000 Total Cations 3.102 Total Anions 3.297 Trace Element Results (µg/L) Aluminum (Al): <30 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 234.000 Antimony (Sb): <2 Chromium (Cr): <2 Nickel (Ni): <2 Thallium (Tl): <5 Arsenic (As): <1 Cobalt (Co): <2 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 49.600 Copper (Cu): <2 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): <30 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): <2 Rubidium (Rb): NR Uranium (U): 1.010 Cadmium (Cd): <2 Lithium (Li): 4.140 Silver (Ag): <1 Vanadium (V): <5 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <1 Zinc (Zn): 2.460 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 184.55 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 257.1 Hardness as CaCO3: 143.07 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 291 Field Alkalinity as CaCO3 (mg/L): 108 PCP (µg/L): NR Lab Conductivity (µmhos): 250 Alkalinity as CaCO3 (mg/L): 117.28 Phosphorus, TD (mg/L): <.05 Field pH: 7.66 Ryznar Stability Index: 8.639 Field Nitrate (mg/L): 0.000 Lab pH: 6.94 Sodium Adsorption Ratio: 0.1819 Field Dissolved O2 (mg/L): NR Water Temp (°C): 8.1 Langlier Saturation Index: -0.850 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): 63.8 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.