Ground-Water Information Center Water Quality Report Site Name: NOTTINGHAM, MARIE/HOWARD, DAVE LC16 Report Date: 5/2/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 223029 / 290641 Sample Date: 8/9/2017 11:32:00 AM Location (TRS): 12N 20W 35 DCC Agency/Sampler: MBMG / SNYDER, DEAN Latitude/Longitude: 46° 44' 51" N 114° 4' 32" W Field Number: 290641 Datum: NAD83 Lab Date: 9/22/2017 8:06:38 AM Altitude: 3170.853 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): 95 USGS 7.5' Quad: FLORENCE SWL-MP (ft): 7.84 PWS Id: Depth Water Enters (ft): 90 Project: BWIPLO, BWIPLOMONGW, BWIPLOLITH,  BWIPLOLITH1, BWIPLOLITHX, BWIPLOLITH2 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 17.630 0.880 Bicarbonate (HCO3) 75.760 1.242 Magnesium (Mg) 3.650 0.300 Carbonate (CO3) 2.800 0.100 Sodium (Na) 2.950 0.128 Chloride (Cl) 1.730 0.049 Potassium (K) 0.950 0.024 Sulfate (SO4) 2.440 J 0.000 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.120 0.009 Manganese (Mn) 0.005 J 0.000 Fluoride (F) 0.130 0.007 Silica (SiO2) 9.930 Orthophosphate (as P) 0.030 J 0.000 Total Cations 1.333 Total Anions 1.406 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.340 J Strontium (Sr): 23.800 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): 21.300 Copper (Cu): <0.500 U Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 1.100 Palladium (Pd): <0.100 U Titanium (Ti): <0.100 U Boron (B): 2.040 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): 0.520 Uranium (U): <0.100 U 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): <0.500 U Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 77.72 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 116.28 Hardness as CaCO3: 59.05 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 130 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 116.65 Alkalinity as CaCO3 (mg/L): 67.34 Phosphorus, TD (mg/L): <0.030 U Field pH: 8.72 Ryznar Stability Index: 8.531 Field Nitrate (mg/L): NR Lab pH: 8.32 Sodium Adsorption Ratio: 0.1699 Field Dissolved O2 (mg/L): NR Water Temp (°C): 10.1 Langlier Saturation Index: -0.105 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: RADON COLLECTED (U OF M) 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.