Ground-Water Information Center Water Quality Report Site Name: LANDQUIST, BRUCE AND MICHELE A-FRAME WELL Report Date: 4/20/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 229524 / 193691 Sample Date: 3/27/2018 10:30:00 AM Location (TRS): 12N 20W 34 BCCB Agency/Sampler: MBMG / SNYDER, DEAN Latitude/Longitude: 46° 45' 21" N 114° 6' 27" W Field Number: LQ DOMESTIC Datum: NAD83 Lab Date: 4/19/2018 10:50:14 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) 18.740 0.935 Bicarbonate (HCO3) 113.570 1.861 Magnesium (Mg) 8.780 0.723 Carbonate (CO3) 0.000 0.000 Sodium (Na) 3.330 0.145 Chloride (Cl) 1.990 0.056 Potassium (K) 1.200 0.031 Sulfate (SO4) 4.500 0.094 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.150 0.011 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.160 0.008 Silica (SiO2) 12.650 Orthophosphate (as P) <0.020 U 0.000 Total Cations 1.834 Total Anions 2.030 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.860 Strontium (Sr): 43.070 Antimony (Sb): <0.100 U Chromium (Cr): 0.230 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): 41.440 Copper (Cu): 0.510 J Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 1.970 Palladium (Pd): <0.100 U Titanium (Ti): <0.100 U Boron (B): 0.600 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): 0.450 J Uranium (U): 0.630 Cadmium (Cd): <0.100 U Lithium (Li): <2.000 U Silver (Ag): <0.100 U Vanadium (V): 0.240 J Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 2.240 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 107.68 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 165.52 Hardness as CaCO3: 82.93 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 173 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 168.78 Alkalinity as CaCO3 (mg/L): 93.5 Phosphorus, TD (mg/L): <0.030 U Field pH: 8.1 Ryznar Stability Index: 9.253 Field Nitrate (mg/L): NR Lab pH: 7.26 Sodium Adsorption Ratio: 0.1433 Field Dissolved O2 (mg/L): 5.330 Water Temp (°C): 8.1 Langlier Saturation Index: -0.996 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: FIRST SAMPLE DURING AQUIFER TEST 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.