Ground-Water Information Center Water Quality Report Site Name: MEYER, TAMMY  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 210080 / 217407 Sample Date: 9/11/2015 12:32:00 PM Location (TRS): 01S 04E 03 AA Agency/Sampler: MBMG / ENGLISH, ALAN Latitude/Longitude: 45° 46' 56" N 111° 12' 26" W Field Number: 217407 Datum: WGS84 Lab Date: 10/13/2015 8:46:48 AM Altitude: Lab/Analyst: MBMG / TIMMER, JACKIE County/State: GALLATIN / MT Sample Method/Handling: GRAB / ru:1 ra:0 fu:2 fa:2 Site Type: WELL Procedure Type: DISSOLVED Geology: 110ALVM Total Depth (ft): 90 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 90 Project: RIVERROCK, BWIPMN, GALVAL_GW319 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 72.000 3.593 Bicarbonate (HCO3) 279.440 4.580 Magnesium (Mg) 17.520 1.442 Carbonate (CO3) 0.000 0.000 Sodium (Na) 7.480 0.325 Chloride (Cl) 10.180 0.287 Potassium (K) 3.100 0.079 Sulfate (SO4) 30.420 0.634 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 3.170 0.226 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.300 0.016 Silica (SiO2) 21.840 Orthophosphate (as P) <0.020 U 0.000 Total Cations 5.448 Total Anions 5.743 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.620 Strontium (Sr): 330.330 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): <0.100 U Thallium (Tl): <0.100 U Arsenic (As): 0.950 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 122.540 Copper (Cu): <0.500 U Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 6.380 Palladium (Pd): 0.270 J Titanium (Ti): 48.000 Boron (B): 16.910 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): 0.140 J Rubidium (Rb): 1.890 Uranium (U): 2.970 Cadmium (Cd): <0.100 U Lithium (Li): 4.520 J Silver (Ag): <0.100 U Vanadium (V): 1.470 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 4.550 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 301.96 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 443.53 Hardness as CaCO3: 251.9 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 579.1 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 483.67 Alkalinity as CaCO3 (mg/L): 228.83 Phosphorus, TD (mg/L): <0.030 U Field pH: 7.78 Ryznar Stability Index: 6.866 Field Nitrate (mg/L): NR Lab pH: 7.7 Sodium Adsorption Ratio: 0.1919 Field Dissolved O2 (mg/L): 8.890 Water Temp (°C): 10.8 Langlier Saturation Index: 0.417 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): 98.7 Nitrate + Nitrite (mg/L as N) 2.450 Hydroxide (mg/L as OH): 0.000 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) 3.270 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: SAMPLE FROM FROST-FREE HYDRANT AT WELLHEAD 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.