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: 2003Q1065 / 152543 Sample Date: 5/8/2003 12:35:00 PM Location (TRS): 15N 11W 22 DDDD Agency/Sampler: MBMG / LAR Latitude/Longitude: 47° 2' 4" N 112° 57' 55" W Field Number: M:152543 Datum: WGS84 Lab Date: 7/7/2003 Altitude: 4338.804 Lab/Analyst: MBMG / KTH County/State: POWELL / MT Sample Method/Handling: PUMPED / 4230 Site Type: WELL Procedure Type: DISSOLVED Geology: 112SNGR Total Depth (ft): 115 USGS 7.5' Quad: COOPERS LAKE SWL-MP (ft): 87.54 PWS Id: Depth Water Enters (ft): 115 Project: DNRCKL, GWCP05, GWAAMON Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 26.700 1.332 Bicarbonate (HCO3) 171.300 2.808 Magnesium (Mg) 16.600 1.366 Carbonate (CO3) 0.000 0.000 Sodium (Na) 1.540 0.067 Chloride (Cl) <0.50 0.000 Potassium (K) 0.489 0.013 Sulfate (SO4) 3.860 0.080 Iron (Fe) 0.041 0.001 Nitrate (as N) 0.122 0.009 Manganese (Mn) <0.001 0.000 Fluoride (F) <0.05 0.000 Silica (SiO2) 7.460 Orthophosphate (as P) <0.05 0.000 Total Cations 2.782 Total Anions 2.897 Trace Element Results (µg/L) Aluminum (Al): <30 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 97.400 Antimony (Sb): <2 Chromium (Cr): <2 Nickel (Ni): <2 Thallium (Tl): <5 Arsenic (As): <1 Cobalt (Co): <2 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 328.000 Copper (Cu): <5 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): <30 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): <2 Rubidium (Rb): NR Uranium (U): 0.602 Cadmium (Cd): <1 Lithium (Li): 1.760 Silver (Ag): <1 Vanadium (V): <5 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <1 Zinc (Zn): 20.300 Zirconium (Zr): 2.280 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 140.56 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 227.32 Hardness as CaCO3: 135 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 276 Field Alkalinity as CaCO3 (mg/L): 25 PCP (µg/L): NR Lab Conductivity (µmhos): 266 Alkalinity as CaCO3 (mg/L): 140.25 Phosphorus, TD (mg/L): <0.05 Field pH: 8.18 Ryznar Stability Index: 7.913 Field Nitrate (mg/L): 0.000 Lab pH: 7.94 Sodium Adsorption Ratio: 0.0749 Field Dissolved O2 (mg/L): NR Water Temp (°C): 7 Langlier Saturation Index: 0.013 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) NR Hydroxide (mg/L as OH): NR 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: CLEAR. FILTER SLIGHTLY ORANGE. Field Remarks: Lab Remarks: NITRATE NO. FROM FU. RA CONTAMINATED

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.