Ground-Water Information Center Water Quality Report Site Name: GALLATIN RIVER AT NIXON GULCH RD GRNGRD Report Date: 4/29/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 205302 / 257431 Sample Date: 10/1/2013 1:46:00 PM Location (TRS): 02N 03E 27 CC Agency/Sampler: MBMG / SUTHERLAND, MARY Latitude/Longitude: 45° 53' 29" N 111° 20' 13" W Field Number: 257431 Datum: NAD83 Lab Date: 1/22/2014 7:32:45 AM Altitude: Lab/Analyst: MBMG / TIMMER, JACKIE County/State: GALLATIN / MT Sample Method/Handling: PUMPED / ru:1 ra:0 fu:1 fa:2 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) 42.930 2.142 Bicarbonate (HCO3) 160.290 2.627 Magnesium (Mg) 12.650 1.041 Carbonate (CO3) 3.350 0.120 Sodium (Na) 6.540 0.284 Chloride (Cl) 3.140 0.089 Potassium (K) 2.200 0.056 Sulfate (SO4) 40.450 0.843 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.130 0.009 Manganese (Mn) 0.004 J 0.000 Fluoride (F) 0.230 0.012 Silica (SiO2) 14.720 Orthophosphate (as P) <0.020 U 0.000 Total Cations 3.530 Total Anions 3.700 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.980 Strontium (Sr): 223.270 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): 0.460 J Thallium (Tl): <0.100 U Arsenic (As): 0.780 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 54.540 Copper (Cu): <0.040 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): 0.300 J Boron (B): 12.300 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): <0.060 U Rubidium (Rb): 1.320 Uranium (U): 1.230 Cadmium (Cd): <0.100 U Lithium (Li): 3.820 J Silver (Ag): <0.100 U Vanadium (V): 1.080 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.280 J Zinc (Zn): <0.050 U Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 204.4 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 285.58 Hardness as CaCO3: 159.26 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 315 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 329.33 Alkalinity as CaCO3 (mg/L): 136.23 Phosphorus, TD (mg/L): <0.030 U Field pH: 9.42 Ryznar Stability Index: 7.246 Field Nitrate (mg/L): NR Lab pH: 8.22 Sodium Adsorption Ratio: 0.2414 Field Dissolved O2 (mg/L): NR Water Temp (°C): 10.6 Langlier Saturation Index: 0.487 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.