Ground-Water Information Center Water Quality Report Site Name: OSTLER NATHAN  Report Date: 5/18/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0446 / 206577 Sample Date: 1/8/2009 9:40:00 AM Location (TRS): 05S 05W 36 BBBB Agency/Sampler: MBMG / CARSTARPHEN, CAMELA Latitude/Longitude: 45° 21' 49" N 112° 10' 24" W Field Number: 206577 Datum: NAD83 Lab Date: 2/13/2009 Altitude: 5265 Lab/Analyst: MBMG / SM County/State: MADISON / MT Sample Method/Handling: PUMPED / 4230 Site Type: WELL Procedure Type: DISSOLVED Geology: 330MDSN Total Depth (ft): 480 USGS 7.5' Quad: LAURIN CANYON SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 460 Project: GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 46.600 2.325 Bicarbonate (HCO3) 196.300 3.217 Magnesium (Mg) 19.300 1.588 Carbonate (CO3) 0.000 0.000 Sodium (Na) <0.208 0.000 Chloride (Cl) 4.990 0.141 Potassium (K) 4.470 0.114 Sulfate (SO4) 50.100 1.044 Iron (Fe) <0.003 0.000 Nitrate (as N) <0.5 P 0.000 Manganese (Mn) <0.001 0.000 Fluoride (F) 1.950 0.103 Silica (SiO2) 12.800 Orthophosphate (as P) <0.5 0.000 Total Cations 4.160 Total Anions 4.504 Trace Element Results (µg/L) Aluminum (Al): 1,067.000 Cesium (Cs): 1.720 Molybdenum (Mo): 9.110 Strontium (Sr): 418.000 Antimony (Sb): 0.161 Chromium (Cr): 1.030 Nickel (Ni): <0.19 Thallium (Tl): <0.07 Arsenic (As): 16.700 Cobalt (Co): <0.27 Niobium (Nb): <0.10 Thorium (Th): <1.78 Barium (Ba): 26.200 Copper (Cu): <0.99 Neodymium (Nd): <0.14 Tin (Sn): 0.401 Beryllium (Be): <0.39 Gallium (Ga): <0.32 Palladium (Pd): 0.450 Titanium (Ti): 0.477 Boron (B): 40.800 Lanthanum (La): <0.05 Praseodymium (Pr): <0.08 Tungsten (W): 0.322 Bromide (Br): <500 Lead (Pb): <0.46 Rubidium (Rb): 10.200 Uranium (U): <0.65 Cadmium (Cd): <0.15 Lithium (Li): 21.000 Silver (Ag): <0.11 Vanadium (V): <1.59 Cerium (Ce): <0.07 Mercury (Hg): NR Selenium (Se): 1.280 Zinc (Zn): 0.871 Zirconium (Zr): <0.05 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 237.52 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 336.97 Hardness as CaCO3: 195.8 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 454 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 453 Alkalinity as CaCO3 (mg/L): 160.75 Phosphorus, TD (mg/L): 0.040 Field pH: NR Ryznar Stability Index: 7.491 Field Nitrate (mg/L): 0.000 Lab pH: 7.76 Sodium Adsorption Ratio: 0 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: 0.135 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): NR 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: Field Remarks: RESAMPLED BECAUSE OF PREVIOUS HIGH AS- 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.