Ground-Water Information Center Water Quality Report Site Name: BLAKESLEY LARRY  Report Date: 4/23/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0672 / 130054 Sample Date: 5/15/2009 Location (TRS): 01N 04E 25 CDBD Agency/Sampler: MBMG / GIBL Latitude/Longitude: 45° 48' 17" N 111° 10' 12" W Field Number: GLWQD-140 Datum: NAD83 Lab Date: 7/7/2009 Altitude: 4386 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: GRAB / 6000 Site Type: WELL Procedure Type: DISSOLVED Geology: 111SNGR Total Depth (ft): 31.5 USGS 7.5' Quad: BELGRADE SWL-MP (ft): 14.16 PWS Id: Depth Water Enters (ft): 31.5 Project: GLWQDPHARM, GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 78.800 3.932 Bicarbonate (HCO3) 294.300 4.824 Magnesium (Mg) 21.400 1.761 Carbonate (CO3) 0.000 0.000 Sodium (Na) 12.100 0.526 Chloride (Cl) 25.600 0.722 Potassium (K) 4.290 0.110 Sulfate (SO4) <25.0 0.000 Iron (Fe) <0.043 0.000 Nitrate (as N) 3.33 P 0.238 Manganese (Mn) <0.031 0.000 Fluoride (F) <0.5 0.000 Silica (SiO2) 24.700 Orthophosphate (as P) <0.5 0.000 Total Cations 6.337 Total Anions 5.783 Trace Element Results (µg/L) Aluminum (Al): <7.60 Cesium (Cs): <0.04 Molybdenum (Mo): 0.303 Strontium (Sr): 262.000 Antimony (Sb): <0.05 Chromium (Cr): 0.089 Nickel (Ni): 0.205 Thallium (Tl): <0.03 Arsenic (As): 0.758 Cobalt (Co): 0.127 Niobium (Nb): <0.04 Thorium (Th): <0.02 Barium (Ba): 189.000 Copper (Cu): 1.180 Neodymium (Nd): <0.05 Tin (Sn): <0.04 Beryllium (Be): <0.20 Gallium (Ga): <0.05 Palladium (Pd): <0.10 Titanium (Ti): 0.234 Boron (B): 19.200 Lanthanum (La): <0.02 Praseodymium (Pr): <0.02 Tungsten (W): <0.05 Bromide (Br): <500 Lead (Pb): <0.15 Rubidium (Rb): 1.900 Uranium (U): 2.200 Cadmium (Cd): <0.05 Lithium (Li): 3.630 Silver (Ag): <0.04 Vanadium (V): 2.030 Cerium (Ce): <0.02 Mercury (Hg): NR Selenium (Se): 0.206 Zinc (Zn): 12.100 Zirconium (Zr): <0.05 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 312.04 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 461.21 Hardness as CaCO3: 284.85 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 599 Field Alkalinity as CaCO3 (mg/L): 223 PCP (µg/L): NR Lab Conductivity (µmhos): 586 Alkalinity as CaCO3 (mg/L): 241.13 Phosphorus, TD (mg/L): <0.033 Field pH: 7.41 Ryznar Stability Index: 6.762 Field Nitrate (mg/L): NR Lab pH: 7.68 Sodium Adsorption Ratio: 0.3094 Field Dissolved O2 (mg/L): 5.200 Water Temp (°C): 10.29 Langlier Saturation Index: 0.459 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): 122.4 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:

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.