Ground-Water Information Center Water Quality Report Site Name: ARLEO, ADRIAN  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 223020 / 134194 Sample Date: 8/9/2017 6:00:00 PM Location (TRS): 12N 20W 33 CCCB Agency/Sampler: MCWQD / ROSS, TRAVIS Latitude/Longitude: 46° 44' 56" N 114° 7' 44" W Field Number: 134194 Datum: NAD83 Lab Date: 9/22/2017 8:06:38 AM Altitude: 3259.347 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): 36 USGS 7.5' Quad: CARLTON LAKE SWL-MP (ft): 9.42 PWS Id: Depth Water Enters (ft): 36 Project: BWIPLO, BWIPLOMONGW, BWIPLOLITH1,  BWIPLOLITHX, BWIPLO_CREEK Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 10.590 0.528 Bicarbonate (HCO3) 59.040 0.968 Magnesium (Mg) 3.810 0.314 Carbonate (CO3) 0.000 0.000 Sodium (Na) 3.530 0.154 Chloride (Cl) 3.060 0.086 Potassium (K) 0.860 0.022 Sulfate (SO4) 3.450 0.072 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.090 0.006 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.120 0.006 Silica (SiO2) 13.550 Orthophosphate (as P) 0.030 J 0.000 Total Cations 1.018 Total Anions 1.139 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.550 Strontium (Sr): 30.030 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): 29.980 Copper (Cu): 1.070 J Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 1.610 Palladium (Pd): <0.100 U Titanium (Ti): <0.100 U Boron (B): 2.090 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): 0.260 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): 1.910 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 68.46 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 98.4 Hardness as CaCO3: 42.13 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 77 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 102.87 Alkalinity as CaCO3 (mg/L): 48.39 Phosphorus, TD (mg/L): <0.030 U Field pH: 5.85 Ryznar Stability Index: 10.611 Field Nitrate (mg/L): NR Lab pH: 6.87 Sodium Adsorption Ratio: 0.2682 Field Dissolved O2 (mg/L): NR Water Temp (°C): 7.4 Langlier Saturation Index: -1.870 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: Field Remarks: ARRIVED AFTER WELL HAD BEEN ON FOR MOST OF THE DAY 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.