Ground-Water Information Center Water Quality Report Site Name: LANDQUIST, BRUCE AND MICHELE A-FRAME WELL Report Date: 4/19/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 229511 / 193691 Sample Date: 3/30/2018 7:15:00 AM Location (TRS): 12N 20W 34 BCCB Agency/Sampler: MBMG / CARSTARPHEN, CAMELA Latitude/Longitude: 46° 45' 21" N 114° 6' 27" W Field Number: 193691 Datum: NAD83 Lab Date: 4/19/2018 10:50:10 AM Altitude: 3220.794 Lab/Analyst: MBMG / TIMMER, JACKIE County/State: MISSOULA / MT Sample Method/Handling: PUMPED / ru:2 ra:0 fu:1 fa:2 Site Type: WELL Procedure Type: DISSOLVED Geology: 100UDFD Total Depth (ft): 60 USGS 7.5' Quad: SW MISSOULA SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 60 Project: BWIPLO, BWIPLOMONGW, BWIPLOLITH1,  BWIPLOLITHX Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 19.010 0.949 Bicarbonate (HCO3) 112.060 1.837 Magnesium (Mg) 8.470 0.697 Carbonate (CO3) 0.000 0.000 Sodium (Na) 3.170 0.138 Chloride (Cl) 1.960 0.055 Potassium (K) 1.220 0.031 Sulfate (SO4) 4.300 0.090 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.140 0.010 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.150 0.008 Silica (SiO2) 12.680 Orthophosphate (as P) <0.020 U 0.000 Total Cations 1.816 Total Anions 1.999 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.940 Strontium (Sr): 42.170 Antimony (Sb): <0.100 U Chromium (Cr): 0.300 J Nickel (Ni): <0.100 U Thallium (Tl): <0.100 U Arsenic (As): <0.100 U Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 41.740 Copper (Cu): <0.500 U Neodymium (Nd): <0.100 U Tin (Sn): 0.360 J Beryllium (Be): <0.100 U Gallium (Ga): 2.050 Palladium (Pd): <0.100 U Titanium (Ti): <0.100 U Boron (B): 0.970 J Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): <0.060 U Rubidium (Rb): 0.440 J Uranium (U): 0.590 Cadmium (Cd): <0.100 U Lithium (Li): <2.000 U Silver (Ag): <0.100 U Vanadium (V): 0.270 J Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): <0.500 U Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 105.65 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 162.48 Hardness as CaCO3: 82.33 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 172 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 164.14 Alkalinity as CaCO3 (mg/L): 91.86 Phosphorus, TD (mg/L): 0.040 J Field pH: 7.5 Ryznar Stability Index: 9.126 Field Nitrate (mg/L): NR Lab pH: 7.39 Sodium Adsorption Ratio: 0.1439 Field Dissolved O2 (mg/L): NR Water Temp (°C): 8.7 Langlier Saturation Index: -0.868 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) 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: CLEAR Field Remarks: AQUIFER TEST PUMPING WELL- CLOSE TO 72 HOURS-STEADY, COLLECTED STABLE WATER ISOTOPES 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.