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: 202748 / 215685 Sample Date: 9/13/2012 11:09:00 AM Location (TRS): 02N 03E 21 ACCB Agency/Sampler: MBMG / MASON, DONALD Latitude/Longitude: 45° 54' 45" N 111° 21' 27" W Field Number: 215685 Datum: NAD83 Lab Date: 12/28/2012 3:19:56 PM Altitude: 4450 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: 374MGHR Total Depth (ft): 700 USGS 7.5' Quad: NIXON GULCH SWL-MP (ft): 354.2 PWS Id: Depth Water Enters (ft): 620 Project: GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 32.680 1.631 Bicarbonate (HCO3) 224.360 3.677 Magnesium (Mg) 26.670 2.195 Carbonate (CO3) 0.000 0.000 Sodium (Na) 26.360 1.147 Chloride (Cl) 5.900 0.166 Potassium (K) 3.310 0.085 Sulfate (SO4) 37.490 0.781 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.820 0.059 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.670 0.035 Silica (SiO2) 14.580 Orthophosphate (as P) <0.020 U 0.000 Total Cations 5.079 Total Anions 4.718 Trace Element Results (µg/L) Aluminum (Al): 3.820 Cesium (Cs): <0.100 U Molybdenum (Mo): 0.900 Strontium (Sr): 312.670 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): 0.450 J Thallium (Tl): <0.100 U Arsenic (As): 0.550 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 65.010 Copper (Cu): 1.460 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): 0.520 Boron (B): 160.700 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): 0.250 Rubidium (Rb): 2.990 Uranium (U): 2.070 Cadmium (Cd): <0.100 U Lithium (Li): 50.410 Silver (Ag): <0.100 U Vanadium (V): 1.670 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.450 J Zinc (Zn): 2.410 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 258.7 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 372.36 Hardness as CaCO3: 191.38 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 424 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 416 Alkalinity as CaCO3 (mg/L): 183.72 Phosphorus, TD (mg/L): <0.030 U Field pH: 7.79 Ryznar Stability Index: 7.803 Field Nitrate (mg/L): 0.500 Lab pH: 7.64 Sodium Adsorption Ratio: 0.8178 Field Dissolved O2 (mg/L): 5.020 Water Temp (°C): 22.5 Langlier Saturation Index: -0.082 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): 96.4 Nitrate + Nitrite (mg/L as N) 0.840 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: REANLAYZED AND RESULTS CONFIRMED.

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.