Ground-Water Information Center Water Quality Report Site Name: GALLATIN RIVER RANCH - OFFICE  Report Date: 4/28/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 202812 / 163734 Sample Date: 9/18/2012 11:25:00 AM Location (TRS): 02N 03E 27 DCAA Agency/Sampler: MBMG / MASON, DONALD Latitude/Longitude: 45° 53' 32" N 111° 19' 57" W Field Number: 163734 Datum: NAD83 Lab Date: 1/23/2013 1:03:07 PM Altitude: 4163.93 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): 122 USGS 7.5' Quad: NIXON GULCH SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 82 Project: BWIPMN, GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 41.420 2.067 Bicarbonate (HCO3) 217.560 3.566 Magnesium (Mg) 33.550 2.761 Carbonate (CO3) 0.000 0.000 Sodium (Na) 23.800 1.035 Chloride (Cl) 7.480 0.211 Potassium (K) 2.740 0.070 Sulfate (SO4) 94.420 1.967 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.060 0.004 Manganese (Mn) 0.004 J 0.000 Fluoride (F) 0.640 0.034 Silica (SiO2) 11.430 Orthophosphate (as P) <0.020 U 0.000 Total Cations 5.959 Total Anions 5.782 Trace Element Results (µg/L) Aluminum (Al): <0.400 U Cesium (Cs): 0.480 J Molybdenum (Mo): 1.500 Strontium (Sr): 624.470 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): 0.660 Thallium (Tl): <0.100 U Arsenic (As): 1.260 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 24.790 Copper (Cu): 0.250 J Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): <0.100 U Palladium (Pd): 0.320 J Titanium (Ti): 1.170 Boron (B): 122.410 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): 80.000 Lead (Pb): 0.110 J Rubidium (Rb): 2.270 Uranium (U): 0.990 Cadmium (Cd): <0.100 U Lithium (Li): 40.480 Silver (Ag): <0.100 U Vanadium (V): <0.100 U Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.390 J Zinc (Zn): 2.170 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 322.36 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 432.97 Hardness as CaCO3: 241.52 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 510.3 Alkalinity as CaCO3 (mg/L): 178.8 Phosphorus, TD (mg/L): <0.030 U Field pH: NR Ryznar Stability Index: 7.671 Field Nitrate (mg/L): NR Lab pH: 7.59 Sodium Adsorption Ratio: 0.672 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: -0.040 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.200 U 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.