Ground-Water Information Center Water Quality Report Site Name: BOSWAY HOLSTIENS  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 202673 / 199351 Sample Date: 8/21/2012 2:30:00 PM Location (TRS): 01N 03E 07 DCDC Agency/Sampler: MBMG / MASON, DONALD Latitude/Longitude: 45° 50' 45" N 111° 23' 48" W Field Number: 199351 Datum: NAD83 Lab Date: 12/14/2012 7:27:58 AM 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: 120SDMS Total Depth (ft): 388 USGS 7.5' Quad: MANHATTAN SW SWL-MP (ft): 268.6 PWS Id: Depth Water Enters (ft): 378 Project: GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 49.000 2.445 Bicarbonate (HCO3) 169.730 2.782 Magnesium (Mg) 18.360 1.511 Carbonate (CO3) 0.000 0.000 Sodium (Na) 45.080 1.961 Chloride (Cl) 60.410 1.704 Potassium (K) 12.310 0.315 Sulfate (SO4) 71.600 1.491 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 3.770 0.269 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.870 0.046 Silica (SiO2) 62.100 Orthophosphate (as P) <0.020 U 0.000 Total Cations 6.257 Total Anions 6.292 Trace Element Results (µg/L) Aluminum (Al): <0.400 U Cesium (Cs): <0.100 U Molybdenum (Mo): 5.030 Strontium (Sr): 619.200 Antimony (Sb): <0.100 U Chromium (Cr): 0.240 J Nickel (Ni): 0.720 Thallium (Tl): <0.100 U Arsenic (As): 16.740 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 62.200 Copper (Cu): 0.630 Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): <0.100 U Palladium (Pd): 0.380 J Titanium (Ti): 0.510 Boron (B): 118.570 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): 0.510 Bromide (Br): 457.000 Lead (Pb): <0.040 U Rubidium (Rb): 10.720 Uranium (U): 12.950 Cadmium (Cd): <0.100 U Lithium (Li): 12.770 Silver (Ag): <0.100 U Vanadium (V): 31.250 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 3.680 Zinc (Zn): 0.220 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 407.1 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 493.36 Hardness as CaCO3: 197.92 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 596 Field Alkalinity as CaCO3 (mg/L): 115 PCP (µg/L): NR Lab Conductivity (µmhos): 595.7 Alkalinity as CaCO3 (mg/L): 139.43 Phosphorus, TD (mg/L): <0.030 U Field pH: 7.77 Ryznar Stability Index: 7.931 Field Nitrate (mg/L): 4.000 Lab pH: 7.4 Sodium Adsorption Ratio: 1.3918 Field Dissolved O2 (mg/L): 8.760 Water Temp (°C): 17.2 Langlier Saturation Index: -0.265 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): 204 Nitrate + Nitrite (mg/L as N) 3.770 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) 4.360 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: 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.