Ground-Water Information Center Water Quality Report Site Name: GALLATIN RIVER AT NIXON GULCH RD GRNGRD Report Date: 4/28/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2011Q1065 / 257431 Sample Date: 4/14/2011 4:56:00 PM Location (TRS): 02N 03E 27 CC Agency/Sampler: MBMG / SUTHERLAND, MARY K. Latitude/Longitude: 45° 53' 29" N 111° 20' 13" W Field Number: GRNGRD Datum: NAD83 Lab Date: 5/12/2011 Altitude: Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: / Site Type: STREAM Procedure Type: DISSOLVED Geology: Staff Gage Reading: NR USGS 7.5' Quad: NIXON GULCH Stream Stage: NR PWS Id: Stream Discharge (cfs): NR  -  NR Project: BWIPMN 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) 46.400 2.315 Bicarbonate (HCO3) 144.100 2.362 Magnesium (Mg) 13.400 1.103 Carbonate (CO3) 6.260 0.224 Sodium (Na) 7.860 0.342 Chloride (Cl) 3.600 0.102 Potassium (K) 2.120 0.054 Sulfate (SO4) 44.270 0.922 Iron (Fe) <0.005 0.000 Nitrate (as N) 0.147 0.010 Manganese (Mn) 0.004 0.000 Fluoride (F) 0.173 0.009 Silica (SiO2) 12.700 Orthophosphate (as P) <0.1 0.000 Total Cations 3.821 Total Anions 3.629 Trace Element Results (µg/L) Aluminum (Al): <2.0 Cesium (Cs): <0.5 Molybdenum (Mo): 0.924 Strontium (Sr): 240.000 Antimony (Sb): <0.2 Chromium (Cr): <0.2 Nickel (Ni): 0.618 Thallium (Tl): <0.2 Arsenic (As): 0.864 Cobalt (Co): 0.389 Niobium (Nb): <0.5 Thorium (Th): <0.2 Barium (Ba): 54.800 Copper (Cu): <0.5 Neodymium (Nd): <0.2 Tin (Sn): <0.5 Beryllium (Be): <0.2 Gallium (Ga): <0.2 Palladium (Pd): <0.5 Titanium (Ti): 0.479 Boron (B): 13.200 Lanthanum (La): <0.2 Praseodymium (Pr): <0.2 Tungsten (W): <0.2 Bromide (Br): <50 Lead (Pb): <0.2 Rubidium (Rb): 1.300 Uranium (U): 1.560 Cadmium (Cd): <0.2 Lithium (Li): 2.620 Silver (Ag): <0.2 Vanadium (V): 1.140 Cerium (Ce): <0.2 Mercury (Hg): NR Selenium (Se): 0.345 Zinc (Zn): <0.5 Zirconium (Zr): <0.2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 207.74 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 280.8 Hardness as CaCO3: 171.02 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 330 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 405 Alkalinity as CaCO3 (mg/L): 128.11 Phosphorus, TD (mg/L): <0.025 Field pH: 8.69 Ryznar Stability Index: 7.022 Field Nitrate (mg/L): NR Lab pH: 8.43 Sodium Adsorption Ratio: 0.2662 Field Dissolved O2 (mg/L): NR Water Temp (°C): 10.8 Langlier Saturation Index: 0.704 Field Chloride (mg/L): NR Air Temp (°C): 6.6 Nitrite (mg/L as N): <0.05 Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) 0.281 P 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) <1.0 P 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.