Ground-Water Information Center Water Quality Report Site Name: ROE JOHN AND SANDRA  Report Date: 5/2/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 204078 / 152543 Sample Date: 6/24/2013 2:45:00 PM Location (TRS): 15N 11W 22 DDDD Agency/Sampler: MBMG / RINEHART, LEONARD Latitude/Longitude: 47° 2' 4" N 112° 57' 55" W Field Number: 152543 Datum: WGS84 Lab Date: 7/23/2013 2:26:42 PM Altitude: 4338.804 Lab/Analyst: MBMG / MCGRATH, STEVE County/State: POWELL / MT Sample Method/Handling: PUMPED / ru:1 ra:0 fu:1 fa:2 Site Type: WELL Procedure Type: DISSOLVED Geology: 112SNGR Total Depth (ft): 115 USGS 7.5' Quad: COOPERS LAKE SWL-MP (ft): 82.3 PWS Id: Depth Water Enters (ft): 115 Project: DNRCKL, GWCP05, GWAAMON Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 27.020 1.348 Bicarbonate (HCO3) 169.890 2.784 Magnesium (Mg) 17.130 1.410 Carbonate (CO3) 0.000 0.000 Sodium (Na) 1.450 0.063 Chloride (Cl) 0.380 J 0.000 Potassium (K) 0.440 0.011 Sulfate (SO4) 4.540 0.095 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.120 0.009 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.070 0.004 Silica (SiO2) 7.140 Orthophosphate (as P) <0.020 U 0.000 Total Cations 2.834 Total Anions 2.891 Trace Element Results (µg/L) Aluminum (Al): 1.260 J Cesium (Cs): <0.100 U Molybdenum (Mo): 0.390 J Strontium (Sr): 78.720 Antimony (Sb): <0.100 U Chromium (Cr): 0.230 J Nickel (Ni): 0.370 J Thallium (Tl): <0.100 U Arsenic (As): 0.630 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 294.810 Copper (Cu): <0.040 U Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): <0.100 U Palladium (Pd): <0.100 U Titanium (Ti): <0.100 U Boron (B): 2.790 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): 0.460 J Uranium (U): 0.540 Cadmium (Cd): <0.100 U Lithium (Li): <1.500 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): 0.730 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 140.89 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 227.15 Hardness as CaCO3: 137.98 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 258 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 247.6 Alkalinity as CaCO3 (mg/L): 139.43 Phosphorus, TD (mg/L): <0.030 U Field pH: NR Ryznar Stability Index: 8.228 Field Nitrate (mg/L): 0.000 Lab pH: 7.62 Sodium Adsorption Ratio: 0.037 Field Dissolved O2 (mg/L): 2.190 Water Temp (°C): 7.7 Langlier Saturation Index: -0.304 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): 94 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) <1.000 U 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, PH PROBE OUT OF CALIBRATION. Field Remarks: SAMPLE POINT TOP OF WELL AT UNION, BEFORE TANK. 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.