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: 2011Q0713 / 257431 Sample Date: 10/23/2010 9:30:00 AM Location (TRS): 02N 03E 27 CC Agency/Sampler: MBMG / HENNE, WILLIAM Latitude/Longitude: 45° 53' 29" N 111° 20' 13" W Field Number: GRNGRD Datum: NAD83 Lab Date: 2/25/2011 Altitude: Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: / 4000 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) 44.400 2.216 Bicarbonate (HCO3) 157.800 2.586 Magnesium (Mg) 12.700 1.045 Carbonate (CO3) 0.000 0.000 Sodium (Na) 8.090 0.352 Chloride (Cl) 2.550 0.072 Potassium (K) 2.150 0.055 Sulfate (SO4) 40.370 0.841 Iron (Fe) 0.002 0.000 Nitrate (as N) 0.140 0.010 Manganese (Mn) 0.004 0.000 Fluoride (F) 0.192 0.010 Silica (SiO2) 12.600 Orthophosphate (as P) <0.1 0.000 Total Cations 3.674 Total Anions 3.519 Trace Element Results (µg/L) Aluminum (Al): <2.0 Cesium (Cs): <0.5 Molybdenum (Mo): 0.911 Strontium (Sr): 231.000 Antimony (Sb): <0.2 Chromium (Cr): <0.2 Nickel (Ni): <0.2 Thallium (Tl): <0.2 Arsenic (As): 0.768 Cobalt (Co): 0.268 Niobium (Nb): <0.5 Thorium (Th): <0.2 Barium (Ba): 58.600 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): 0.426 Boron (B): 11.000 Lanthanum (La): <0.2 Praseodymium (Pr): <0.2 Tungsten (W): <0.2 Bromide (Br): <50 Lead (Pb): <0.2 Rubidium (Rb): 1.220 Uranium (U): 1.360 Cadmium (Cd): <0.2 Lithium (Li): 2.860 Silver (Ag): <0.2 Vanadium (V): 0.991 Cerium (Ce): <0.2 Mercury (Hg): NR Selenium (Se): 0.309 Zinc (Zn): 0.541 Zirconium (Zr): <0.2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 200.93 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 281.1 Hardness as CaCO3: 163.14 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 310 Alkalinity as CaCO3 (mg/L): 129.59 Phosphorus, TD (mg/L): <0.025 Field pH: NR Ryznar Stability Index: 7.430 Field Nitrate (mg/L): NR Lab pH: 8.05 Sodium Adsorption Ratio: 0.2725 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: 0.310 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.05 Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.2 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.