Ground-Water Information Center Water Quality Report Site Name: BEAN BRAD  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0072 / 241794 Sample Date: 6/17/2008 10:50:00 AM Location (TRS): 01S 04E 09 ABD Agency/Sampler: MBMG / ARE Latitude/Longitude: 45° 46' 36" N 111° 14' 14" W Field Number: Datum: WGS84 Lab Date: 10/8/2008 Altitude: Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: PUMPED / 4220 Site Type: WELL Procedure Type: DISSOLVED Geology: 111SNGR Total Depth (ft): 60 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 58.5 Project: RIVERROCK Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 34.200 1.707 Bicarbonate (HCO3) 135.900 2.227 Magnesium (Mg) 21.000 1.728 Carbonate (CO3) 0.000 0.000 Sodium (Na) 5.010 0.218 Chloride (Cl) 3.270 0.092 Potassium (K) 1.610 0.041 Sulfate (SO4) 66.100 1.377 Iron (Fe) 0.446 0.016 Nitrate (as N) <0.5 P 0.000 Manganese (Mn) 0.039 0.001 Fluoride (F) 0.306 0.016 Silica (SiO2) 18.300 Orthophosphate (as P) <0.05 0.000 Total Cations 3.716 Total Anions 3.713 Trace Element Results (µg/L) Aluminum (Al): <1.0 Cesium (Cs): <0.1 Molybdenum (Mo): 1.337 Strontium (Sr): 181.000 Antimony (Sb): <0.1 Chromium (Cr): <0.1 Nickel (Ni): <0.1 Thallium (Tl): <0.1 Arsenic (As): 0.480 Cobalt (Co): <0.1 Niobium (Nb): <0.1 Thorium (Th): <0.1 Barium (Ba): 43.800 Copper (Cu): 1.580 Neodymium (Nd): <0.2 Tin (Sn): <0.1 Beryllium (Be): <0.1 Gallium (Ga): <0.1 Palladium (Pd): 0.254 Titanium (Ti): 0.249 Boron (B): 7.250 Lanthanum (La): <1.0 Praseodymium (Pr): <0.1 Tungsten (W): <0.1 Bromide (Br): 52.000 Lead (Pb): <0.5 Rubidium (Rb): 0.660 Uranium (U): 1.390 Cadmium (Cd): <0.1 Lithium (Li): 1.940 Silver (Ag): <0.1 Vanadium (V): 0.550 Cerium (Ce): <0.5 Mercury (Hg): NR Selenium (Se): <0.5 Zinc (Zn): 5.350 Zirconium (Zr): <0.1 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 216.2 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 285.21 Hardness as CaCO3: 171.83 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 263 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 286 Alkalinity as CaCO3 (mg/L): 111.54 Phosphorus, TD (mg/L): <0.05 Field pH: 7.19 Ryznar Stability Index: 8.557 Field Nitrate (mg/L): NR Lab pH: 7.28 Sodium Adsorption Ratio: 0.166 Field Dissolved O2 (mg/L): 3.250 Water Temp (°C): 4.1 Langlier Saturation Index: -0.639 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): 120.1 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: CLEAR Field Remarks: SAMPLE COLLECTED FROM FROST-FREE TAP AT WELL 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.