Ground-Water Information Center Water Quality Report Site Name: BOWMAN MIKE & SMITH SPENCER  Report Date: 4/17/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 1992Q1222 / 130171 Sample Date: 8/26/1992 12:40:00 PM Location (TRS): 01N 04E 17 BAAA Agency/Sampler: USGS / SES Latitude/Longitude: 45° 50' 52" N 111° 15' 18" W Field Number: BOMAN Datum: NAD27 Lab Date: 12/24/1992 Altitude: 4228 Lab/Analyst: MBMG / SFM County/State: GALLATIN / MT Sample Method/Handling: PUMPED / 3120 Site Type: WELL Procedure Type: DISSOLVED Geology: 110ALVM Total Depth (ft): 28 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): NR Project: USGS Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 56.200 2.804 Bicarbonate (HCO3) 234.000 3.835 Magnesium (Mg) 17.500 1.440 Carbonate (CO3) 0.000 0.000 Sodium (Na) 7.400 0.322 Chloride (Cl) 3.310 0.093 Potassium (K) 5.300 0.136 Sulfate (SO4) 38.600 0.804 Iron (Fe) 0.036 0.001 Nitrate (as N) 0.940 0.067 Manganese (Mn) 0.002 0.000 Fluoride (F) 0.360 0.019 Silica (SiO2) 25.600 Orthophosphate (as P) <.05 0.000 Total Cations 4.715 Total Anions 4.819 Trace Element Results (µg/L) Aluminum (Al): <20. Cesium (Cs): NR Molybdenum (Mo): <20. Strontium (Sr): 329.000 Antimony (Sb): NR Chromium (Cr): <2. Nickel (Ni): <2. Thallium (Tl): NR Arsenic (As): <.8 Cobalt (Co): NR Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 83.000 Copper (Cu): 5.400 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): NR Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): 48.500 Boron (B): 48.000 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50. Lead (Pb): <3. Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): <2. Lithium (Li): 10.000 Silver (Ag): <1. Vanadium (V): <5. Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <.8 Zinc (Zn): 1.900 Zirconium (Zr): <100. Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 269.98 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 388.71 Hardness as CaCO3: 212.36 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 432 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 439 Alkalinity as CaCO3 (mg/L): 191.92 Phosphorus, TD (mg/L): NR Field pH: 7.1 Ryznar Stability Index: 7.284 Field Nitrate (mg/L): NR Lab pH: 7.65 Sodium Adsorption Ratio: 0.209 Field Dissolved O2 (mg/L): NR Water Temp (°C): 10 Langlier Saturation Index: 0.183 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 Additional Parameters Phosphate T Dis (mg/L - P) L .5 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: A = Hydride atomic absorption; E = Estimated due to interference; H = Exceeded holding time; J = Estimated quantity above detection limit but below reporting limit; K = Na+K combined; N = Spiked sample recovery not within control limits; 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.