Ground-Water Information Center Water Quality Report Site Name: 71 RANCH CO - ERROL GALT SOUTH WELL Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 1995Q0543 / 20773 Sample Date: 5/25/1995 2:30:00 PM Location (TRS): 08N 11E 19 DCCA Agency/Sampler: MBMG / JDD Latitude/Longitude: 46° 25' 58" N 110° 23' 42" W Field Number: M:20773 Datum: NAD83 Lab Date: 7/7/1995 Altitude: 5014.649 Lab/Analyst: MBMG / TSH County/State: MEAGHER / MT Sample Method/Handling: PUMPED / 4220 Site Type: WELL Procedure Type: DISSOLVED Geology: 211JDRV Total Depth (ft): 65 USGS 7.5' Quad: GROVELAND SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 60 Project: GWAAMON, RADON Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 49.700 2.480 Bicarbonate (HCO3) 265.000 4.343 Magnesium (Mg) 8.300 0.683 Carbonate (CO3) 0.000 0.000 Sodium (Na) 78.800 3.428 Chloride (Cl) 4.500 0.127 Potassium (K) 2.500 0.064 Sulfate (SO4) 100.000 2.083 Iron (Fe) 2.569 0.092 Nitrate (as N) <.25 P 0.000 Manganese (Mn) 0.074 0.003 Fluoride (F) 0.302 0.016 Silica (SiO2) 10.600 Orthophosphate (as P) <.1 0.000 Total Cations 6.787 Total Anions 6.569 Trace Element Results (µg/L) Aluminum (Al): <30. Cesium (Cs): NR Molybdenum (Mo): <10. Strontium (Sr): 1,051.000 Antimony (Sb): <2. Chromium (Cr): <2. Nickel (Ni): <2. Thallium (Tl): NR Arsenic (As): <1. Cobalt (Co): <2. Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 21.600 Copper (Cu): <2. Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2. Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <10. Boron (B): 136.000 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50. Lead (Pb): <2. Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): <2. Lithium (Li): 28.000 Silver (Ag): <1. Vanadium (V): <5. Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <1. Zinc (Zn): 23.800 Zirconium (Zr): <20. Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 389.57 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 524.02 Hardness as CaCO3: 158.26 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 704 Field Alkalinity as CaCO3 (mg/L): 192 PCP (µg/L): NR Lab Conductivity (µmhos): 638 Alkalinity as CaCO3 (mg/L): 217.35 Phosphorus, TD (mg/L): NR Field pH: 7.77 Ryznar Stability Index: 7.093 Field Nitrate (mg/L): NR Lab pH: 7.84 Sodium Adsorption Ratio: 2.7326 Field Dissolved O2 (mg/L): NR Water Temp (°C): 9.5 Langlier Saturation Index: 0.374 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 Additional Parameters Alkalinity Fld (CaCO3) 192.000 Phosphate T Dis (mg/L - P) L.2 Notes Sample Condition: Field Remarks: BYPASSED WATER SOFTNER & PURGED WELL Lab Remarks:

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.