Ground-Water Information Center Water Quality Report Site Name: MWWQD W122035D MICHEAL LANE Report Date: 5/2/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 223028 / 151202 Sample Date: 8/9/2017 2:48:00 PM Location (TRS): 12N 20W 35 DBAA Agency/Sampler: MCWQD / ROSS, TRAVIS Latitude/Longitude: 46° 45' 13" N 114° 4' 16" W Field Number: 151202-D Datum: NAD83 Lab Date: 9/22/2017 8:06:38 AM Altitude: 3163.122 Lab/Analyst: MBMG / TIMMER, JACKIE County/State: MISSOULA / MT Sample Method/Handling: PUMPED / ru:1 ra:0 fu:2 fa:2 Site Type: WELL Procedure Type: DISSOLVED Geology: 100UDFD Total Depth (ft): 24 USGS 7.5' Quad: SW MISSOULA SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 4 Project: BWIPLO, BWIPLOMONGW, BWIPLOLITH,  BWIPLOLITH1, BWIPLOLITHX, BWIPLO_CREEK Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 14.650 0.731 Bicarbonate (HCO3) 74.560 1.222 Magnesium (Mg) 4.840 0.398 Carbonate (CO3) 0.000 0.000 Sodium (Na) 8.060 0.351 Chloride (Cl) 10.270 0.290 Potassium (K) 1.630 0.042 Sulfate (SO4) 3.540 0.074 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.280 0.020 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.150 0.008 Silica (SiO2) 15.370 Orthophosphate (as P) 0.050 J 0.000 Total Cations 1.523 Total Anions 1.613 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.420 J Strontium (Sr): 43.970 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U 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): 50.280 Copper (Cu): 0.730 J Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 2.600 Palladium (Pd): <0.100 U Titanium (Ti): <0.100 U Boron (B): 4.580 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): <0.100 U Uranium (U): 0.230 J Cadmium (Cd): <0.100 U Lithium (Li): <2.000 U Silver (Ag): <0.100 U Vanadium (V): <0.100 U Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 0.760 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 95.44 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 133.49 Hardness as CaCO3: 56.5 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 103 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 140.03 Alkalinity as CaCO3 (mg/L): 61.51 Phosphorus, TD (mg/L): <0.030 U Field pH: 5.85 Ryznar Stability Index: 10.310 Field Nitrate (mg/L): NR Lab pH: 6.68 Sodium Adsorption Ratio: 0.4631 Field Dissolved O2 (mg/L): NR Water Temp (°C): 13.1 Langlier Saturation Index: -1.815 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) 0.340 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: Field Remarks: DUPLICATE SAMPLE 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.