Ground-Water Information Center Water Quality Report Site Name: HARKIN JOHN  Report Date: 4/26/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 1983Q0550 / 92108 Sample Date: 6/23/1983 12:00:00 PM Location (TRS): 01S 06E 36 ADBA Agency/Sampler: MBMG / BKM Latitude/Longitude: 45° 42' 35" N 110° 55' 16" W Field Number: HARKIN Datum: NAD83 Lab Date: 9/6/1983 Altitude: 5170 Lab/Analyst: MBMG / FNA County/State: GALLATIN / MT Sample Method/Handling: PUMPED / Site Type: WELL Procedure Type: DISSOLVED Geology: 211BMCK Total Depth (ft): 72 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 32 Project: Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 44.600 2.226 Bicarbonate (HCO3) 184.200 3.019 Magnesium (Mg) 9.100 0.749 Carbonate (CO3) 0.000 0.000 Sodium (Na) 11.900 0.518 Chloride (Cl) 0.700 0.020 Potassium (K) 0.500 0.013 Sulfate (SO4) 17.800 0.371 Iron (Fe) 0.380 0.014 Nitrate (as N) 1.370 0.098 Manganese (Mn) <.001 0.000 Fluoride (F) 0.200 0.011 Silica (SiO2) 18.000 Orthophosphate (as P) NR 0.000 Total Cations 3.528 Total Anions 3.518 Trace Element Results (µg/L) Aluminum (Al): <30. Cesium (Cs): NR Molybdenum (Mo): <20. Strontium (Sr): 180.000 Antimony (Sb): NR Chromium (Cr): <2. Nickel (Ni): <10. Thallium (Tl): NR Arsenic (As): NR Cobalt (Co): NR Niobium (Nb): NR Thorium (Th): NR Barium (Ba): NR Copper (Cu): 27.000 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): NR Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1. Boron (B): 50.000 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): NR Lead (Pb): <40. Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): <2. Lithium (Li): 2.000 Silver (Ag): <2. Vanadium (V): <1. Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): NR Zinc (Zn): <3. Zirconium (Zr): <4. Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 195.37 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 288.73 Hardness as CaCO3: 148.82 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 353 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 326.1 Alkalinity as CaCO3 (mg/L): 150.91 Phosphorus, TD (mg/L): NR Field pH: 6.5 Ryznar Stability Index: 8.234 Field Nitrate (mg/L): NR Lab pH: 7.11 Sodium Adsorption Ratio: 0.428 Field Dissolved O2 (mg/L): NR Water Temp (°C): 9 Langlier Saturation Index: -0.562 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 Field Remarks: WELL AT BACK DOOR; 25 FEET OF PERFORATED PLASTIC LINER IN WELL * EXACT DEPTHS NOT NOTED ON LOG * Lab Remarks: FU CA 45.8 MG/L GIVES 3.59 MEQ CATIONS FOR -.41 SIGMA *

Explanation: mg/L = milligrams per Liter; µg/L = micrograms per Liter; ft = feet; NR = No Reading in GWIC Qualifiers: A = Hydride atomic absorption; E = Estimated due to interference; H = Exceeded holding time; J = Estimated quantity above detection limit but below reporting limit; K = Na+K combined; N = Spiked sample recovery not within control limits; 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.