Ground-Water Information Center Water Quality Report Site Name: DONNA AND NICK GRAHAM  Report Date: 4/18/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 223030 / 131373 Sample Date: 8/10/2017 10:40:00 AM Location (TRS): 12N 20W 35 AABD Agency/Sampler: MCWQD / ROSS, TRAVIS Latitude/Longitude: 46° 45' 37" N 114° 4' 8" W Field Number: 131373 Datum: NAD83 Lab Date: 9/22/2017 8:06:38 AM Altitude: 3172.083 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): 74 USGS 7.5' Quad: SOUTHWEST MISSOULA SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 74 Project: BWIPLO, BWIPLOMONGW, BWIPLOLITH1,  BWIPLOLITHX, BWIPLO_CREEK Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 19.250 0.961 Bicarbonate (HCO3) 90.350 1.481 Magnesium (Mg) 5.730 0.472 Carbonate (CO3) 0.000 0.000 Sodium (Na) 5.070 0.221 Chloride (Cl) 6.080 0.172 Potassium (K) 1.290 0.033 Sulfate (SO4) 4.160 0.087 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.860 0.061 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.120 0.006 Silica (SiO2) 14.560 Orthophosphate (as P) 0.030 J 0.000 Total Cations 1.687 Total Anions 1.807 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.290 J Strontium (Sr): 39.980 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): 44.920 Copper (Cu): 3.640 Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 2.310 Palladium (Pd): <0.100 U Titanium (Ti): <0.100 U Boron (B): 4.650 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): 0.440 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): 4.950 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 101.32 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 146.99 Hardness as CaCO3: 71.65 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 130 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 154.47 Alkalinity as CaCO3 (mg/L): 73.82 Phosphorus, TD (mg/L): <0.030 U Field pH: 5.97 Ryznar Stability Index: 9.565 Field Nitrate (mg/L): NR Lab pH: 7.13 Sodium Adsorption Ratio: 0.257 Field Dissolved O2 (mg/L): NR Water Temp (°C): 10 Langlier Saturation Index: -1.217 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) 0.840 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: 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.