Ground-Water Information Center Water Quality Report Site Name: HODGSKISS LYLE AND BETH ANN  Report Date: 4/26/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2008Q0120 / 77468 Sample Date: 8/8/2007 10:48:00 AM Location (TRS): 23N 06W 24 CDBC Agency/Sampler: MBMG / MASON, DONALD C. Latitude/Longitude: 47° 43' 45" N 112° 19' 18" W Field Number: 77468 Datum: NAD83 Lab Date: 9/17/2007 Altitude: 4015 Lab/Analyst: MBMG / WO County/State: TETON / MT Sample Method/Handling: GRAB / 4230 Site Type: WELL Procedure Type: DISSOLVED Geology: 211TMDC Total Depth (ft): 60 USGS 7.5' Quad: NUNEMAKER HILL SWL-MP (ft): 10.25 PWS Id: Depth Water Enters (ft): NR Project: GWCP07 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 2.330 0.116 Bicarbonate (HCO3) 525.100 8.606 Magnesium (Mg) 0.644 0.053 Carbonate (CO3) 41.300 1.479 Sodium (Na) 394.000 17.139 Chloride (Cl) 74.300 2.096 Potassium (K) 0.811 0.021 Sulfate (SO4) 294.000 6.124 Iron (Fe) 0.005 0.000 Nitrate (as N) <0.25 P 0.000 Manganese (Mn) 0.002 0.000 Fluoride (F) 3.030 0.159 Silica (SiO2) 6.880 Orthophosphate (as P) <0.25 0.000 Total Cations 17.386 Total Anions 18.465 Trace Element Results (µg/L) Aluminum (Al): <10.0 Cesium (Cs): NR Molybdenum (Mo): 25.300 Strontium (Sr): 188.000 Antimony (Sb): <0.5 Chromium (Cr): <0.5 Nickel (Ni): <0.5 Thallium (Tl): <0.5 Arsenic (As): <1.0 Cobalt (Co): <0.5 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 19.900 Copper (Cu): <1.0 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <0.5 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1.0 Boron (B): 572.000 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <250 Lead (Pb): <1.0 Rubidium (Rb): NR Uranium (U): <0.25 Cadmium (Cd): <0.5 Lithium (Li): 67.200 Silver (Ag): <2.5 Vanadium (V): <0.5 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <2.5 Zinc (Zn): <1.0 Zirconium (Zr): <0.5 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 1075.59 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 1341.97 Hardness as CaCO3: 8.47 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 1724 Field Alkalinity as CaCO3 (mg/L): 425 PCP (µg/L): NR Lab Conductivity (µmhos): 1728 Alkalinity as CaCO3 (mg/L): 498.97 Phosphorus, TD (mg/L): <0.05 Field pH: 8.91 Ryznar Stability Index: 7.759 Field Nitrate (mg/L): 0.000 Lab pH: 9.11 Sodium Adsorption Ratio: 58.9143 Field Dissolved O2 (mg/L): NR Water Temp (°C): 12.6 Langlier Saturation Index: 0.675 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): -98 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: SAMPLE REANALYZED AND RESULTS CONFIRMED

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.