Ground-Water Information Center Water Quality Report Site Name: 71 RANCH COMPANY  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2002Q0088 / 193467 Sample Date: 8/7/2001 Location (TRS): 08N 11E 30 BBDA Agency/Sampler: MBMG / MLH Latitude/Longitude: 46° 25' 46" N 110° 24' 8" W Field Number: Datum: NAD27 Lab Date: 11/20/2001 Altitude: 5080 Lab/Analyst: MBMG / JMC County/State: MEAGHER / MT Sample Method/Handling: GRAB / Site Type: SPRING Procedure Type: DISSOLVED Geology: 110ALVM Total Depth (ft): NR USGS 7.5' Quad: GROVELAND SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): NR Project: Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 44.800 2.236 Bicarbonate (HCO3) 219.800 3.603 Magnesium (Mg) 8.280 0.681 Carbonate (CO3) 0.000 0.000 Sodium (Na) 38.400 1.670 Chloride (Cl) 1.270 0.036 Potassium (K) 5.600 0.143 Sulfate (SO4) 65.000 1.354 Iron (Fe) 0.007 0.000 Nitrate (as N) <.5 P 0.000 Manganese (Mn) <.001 0.000 Fluoride (F) 0.589 0.031 Silica (SiO2) 13.600 Orthophosphate (as P) <.05 0.000 Total Cations 4.756 Total Anions 5.023 Trace Element Results (µg/L) Aluminum (Al): <30 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 884.000 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): 25.100 Copper (Cu): <2 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): 51.200 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): <2 Rubidium (Rb): NR Uranium (U): 4.140 Cadmium (Cd): <2 Lithium (Li): 19.900 Silver (Ag): <1 Vanadium (V): <5 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): 1.920 Zinc (Zn): <2 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 286.45 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 398.08 Hardness as CaCO3: 145.95 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 506 Alkalinity as CaCO3 (mg/L): 180.44 Phosphorus, TD (mg/L): <.05 Field pH: NR Ryznar Stability Index: 7.675 Field Nitrate (mg/L): NR Lab pH: 7.51 Sodium Adsorption Ratio: 1.3688 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: -0.082 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: Field Remarks: Lab Remarks: 71 RANCH SPRING

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.