Ground-Water Information Center Water Quality Report Site Name: HAINSWORTH, PAMELA & JAY COWAN  Report Date: 4/19/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2011Q1052 / 90918 Sample Date: 4/13/2011 10:55:00 AM Location (TRS): 01S 04E 05 A Agency/Sampler: MBMG / ZINDT, ERINN E. Latitude/Longitude: 45° 47' 11" N 111° 15' 32" W Field Number: HAINS-90918 Datum: NAD83 Lab Date: 5/12/2011 Altitude: 4430.39 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: PUMPED / Site Type: WELL Procedure Type: DISSOLVED Geology: 111ALVM Total Depth (ft): 40 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 40 Project: BWIPMN, BWIP4C, BWIP4CCHEM Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 38.100 1.901 Bicarbonate (HCO3) 125.800 2.062 Magnesium (Mg) 11.000 0.905 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.780 0.208 Chloride (Cl) 2.000 0.056 Potassium (K) 1.460 0.037 Sulfate (SO4) 44.700 0.931 Iron (Fe) 0.051 0.002 Nitrate (as N) 0.121 0.009 Manganese (Mn) 0.001 0.000 Fluoride (F) 0.136 0.007 Silica (SiO2) 13.300 Orthophosphate (as P) <0.1 0.000 Total Cations 3.059 Total Anions 3.065 Trace Element Results (µg/L) Aluminum (Al): <2.0 Cesium (Cs): <0.5 Molybdenum (Mo): 0.610 Strontium (Sr): 209.000 Antimony (Sb): <0.2 Chromium (Cr): <0.2 Nickel (Ni): <0.2 Thallium (Tl): <0.2 Arsenic (As): 0.398 Cobalt (Co): <0.2 Niobium (Nb): <0.5 Thorium (Th): <0.2 Barium (Ba): 52.300 Copper (Cu): 8.240 Neodymium (Nd): <0.2 Tin (Sn): <0.5 Beryllium (Be): <0.2 Gallium (Ga): <0.2 Palladium (Pd): <0.5 Titanium (Ti): 0.463 Boron (B): 8.250 Lanthanum (La): <0.2 Praseodymium (Pr): <0.2 Tungsten (W): <0.2 Bromide (Br): <50 Lead (Pb): <0.2 Rubidium (Rb): 0.902 Uranium (U): 0.619 Cadmium (Cd): <0.2 Lithium (Li): <2.0 Silver (Ag): <0.2 Vanadium (V): 0.591 Cerium (Ce): <0.2 Mercury (Hg): NR Selenium (Se): 0.353 Zinc (Zn): 1.240 Zirconium (Zr): <0.2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 177.18 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 241.11 Hardness as CaCO3: 140.41 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 299 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 356 Alkalinity as CaCO3 (mg/L): 103.34 Phosphorus, TD (mg/L): <0.025 Field pH: 6.72 Ryznar Stability Index: 8.520 Field Nitrate (mg/L): NR Lab pH: 7.29 Sodium Adsorption Ratio: 0.1836 Field Dissolved O2 (mg/L): NR Water Temp (°C): 7.45 Langlier Saturation Index: -0.615 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.05 Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.2 P 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) <1.0 P 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.