Ground-Water Information Center Water Quality Report Site Name: GALLATIN RIVER RANCH  Report Date: 4/28/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 202749 / 163728 Sample Date: 9/13/2012 1:15:00 PM Location (TRS): 02N 03E 27 AABB Agency/Sampler: MBMG / MASON, DONALD Latitude/Longitude: 45° 54' 12" N 111° 19' 55" W Field Number: 163728 Datum: NAD83 Lab Date: 12/28/2012 3:19:56 PM Altitude: 4510 Lab/Analyst: MBMG / MCGRATH, STEVE County/State: GALLATIN / MT Sample Method/Handling: GRAB / ru:1 ra:0 fu:1 fa:2 Site Type: WELL Procedure Type: DISSOLVED Geology: 400LHOD Total Depth (ft): 440 USGS 7.5' Quad: NIXON GULCH SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 400 Project: GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 89.300 4.456 Bicarbonate (HCO3) 329.370 5.398 Magnesium (Mg) 65.330 5.376 Carbonate (CO3) 0.000 0.000 Sodium (Na) 45.470 1.978 Chloride (Cl) 14.800 0.418 Potassium (K) 3.440 0.088 Sulfate (SO4) 267.300 5.568 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.390 0.028 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.660 0.035 Silica (SiO2) 14.000 Orthophosphate (as P) <0.020 U 0.000 Total Cations 11.921 Total Anions 11.446 Trace Element Results (µg/L) Aluminum (Al): <0.400 U Cesium (Cs): 0.150 J Molybdenum (Mo): 2.380 Strontium (Sr): 511.770 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): 1.260 Thallium (Tl): <0.100 U Arsenic (As): 0.300 J Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 23.760 Copper (Cu): 1.980 Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): <0.100 U Palladium (Pd): <0.100 U Titanium (Ti): 3.300 Boron (B): 119.930 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): 137.000 Lead (Pb): <0.040 U Rubidium (Rb): 3.450 Uranium (U): 13.620 Cadmium (Cd): <0.100 U Lithium (Li): 32.860 Silver (Ag): <0.100 U Vanadium (V): 2.650 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.820 Zinc (Zn): 16.390 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 661.72 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 828.65 Hardness as CaCO3: 491.88 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 937 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 946.3 Alkalinity as CaCO3 (mg/L): 269.84 Phosphorus, TD (mg/L): 0.040 J Field pH: 7.45 Ryznar Stability Index: 6.856 Field Nitrate (mg/L): 0.000 Lab pH: 7.38 Sodium Adsorption Ratio: 0.8829 Field Dissolved O2 (mg/L): 1.240 Water Temp (°C): 13.6 Langlier Saturation Index: 0.262 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): 182.6 Nitrate + Nitrite (mg/L as N) 0.430 Hydroxide (mg/L as OH): 0.000 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) <1.000 U 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: 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.