Ground-Water Information Center Water Quality Report Site Name: WEST GALLATIN AT AMSTERDAM RD WGAMRD Report Date: 4/19/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 202784 / 257355 Sample Date: 9/21/2012 3:45:00 PM Location (TRS): 01S 04E 04 CD Agency/Sampler: MBMG / SCOTT, JEFF Latitude/Longitude: 45° 46' 21" N 111° 14' 20" W Field Number: 257355 Datum: NAD83 Lab Date: 1/23/2013 1:02:53 PM Altitude: Lab/Analyst: MBMG / MCGRATH, STEVE County/State: GALLATIN / MT Sample Method/Handling: GRAB / ru:1 ra:0 fu:1 fa:2 Site Type: STREAM Procedure Type: DISSOLVED Geology: Staff Gage Reading: NR USGS 7.5' Quad: BELGRADE Stream Stage: NR PWS Id: Stream Discharge (cfs): NR  -  NR Project: BWIPMN, BWIP4C, BWIP4CCHEM Stream Width (ft): NR  -  NR Sample Water Use: Sample Depth (ft): NR  -  NR Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 41.040 2.048 Bicarbonate (HCO3) 133.850 2.194 Magnesium (Mg) 11.710 0.964 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.380 0.191 Chloride (Cl) 1.830 0.052 Potassium (K) 1.880 0.048 Sulfate (SO4) 42.700 0.889 Iron (Fe) <0.015 U 0.000 Nitrate (as N) <0.010 U 0.000 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.200 0.011 Silica (SiO2) 10.930 Orthophosphate (as P) <0.020 U 0.000 Total Cations 3.256 Total Anions 3.145 Trace Element Results (µg/L) Aluminum (Al): 0.670 J Cesium (Cs): <0.100 U Molybdenum (Mo): 0.960 Strontium (Sr): 214.570 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): 1.320 Thallium (Tl): <0.100 U Arsenic (As): 1.760 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 50.100 Copper (Cu): <0.100 U Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): <0.100 U Palladium (Pd): <0.100 U Titanium (Ti): 0.530 Boron (B): 6.850 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): <0.040 U Rubidium (Rb): 1.280 Uranium (U): 0.870 Cadmium (Cd): <0.100 U Lithium (Li): 1.790 J Silver (Ag): <0.100 U Vanadium (V): 0.450 J Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 0.320 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 180.76 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 248.75 Hardness as CaCO3: 150.68 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 312.2 Alkalinity as CaCO3 (mg/L): 109.9 Phosphorus, TD (mg/L): <0.030 U Field pH: NR Ryznar Stability Index: 7.442 Field Nitrate (mg/L): NR Lab pH: 8.25 Sodium Adsorption Ratio: 0.1418 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: 0.404 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.200 U 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) <1.000 U 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.