Ground-Water Information Center Water Quality Report Site Name: EAST GALLATIN AT GALLATIN RIVER RANCH EGGRR Report Date: 4/28/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 205304 / 257433 Sample Date: 10/1/2013 10:29:00 AM Location (TRS): 02N 03E 27 DC Agency/Sampler: MBMG / SUTHERLAND, MARY Latitude/Longitude: 45° 53' 31" N 111° 19' 55" W Field Number: 257433 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) 55.290 2.759 Bicarbonate (HCO3) 240.300 3.939 Magnesium (Mg) 15.960 1.313 Carbonate (CO3) 0.000 0.000 Sodium (Na) 8.640 0.376 Chloride (Cl) 8.110 0.229 Potassium (K) 3.030 0.078 Sulfate (SO4) 23.380 0.487 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.600 0.043 Manganese (Mn) 0.006 J 0.000 Fluoride (F) 0.200 0.011 Silica (SiO2) 16.550 Orthophosphate (as P) <0.020 U 0.000 Total Cations 4.532 Total Anions 4.708 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.820 Strontium (Sr): 194.900 Antimony (Sb): <0.100 U Chromium (Cr): 0.290 J Nickel (Ni): 0.680 Thallium (Tl): <0.100 U Arsenic (As): 0.820 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 67.360 Copper (Cu): 0.560 J 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): 0.320 J Boron (B): 18.220 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): 1.520 Uranium (U): 1.710 Cadmium (Cd): <0.100 U Lithium (Li): 3.550 J Silver (Ag): <0.100 U Vanadium (V): 1.900 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.270 J Zinc (Zn): 0.970 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 250.48 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 372.25 Hardness as CaCO3: 203.75 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 405 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 430.02 Alkalinity as CaCO3 (mg/L): 196.84 Phosphorus, TD (mg/L): <0.030 U Field pH: 9 Ryznar Stability Index: 6.886 Field Nitrate (mg/L): NR Lab pH: 8.04 Sodium Adsorption Ratio: 0.2744 Field Dissolved O2 (mg/L): NR Water Temp (°C): 7.3 Langlier Saturation Index: 0.577 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) 0.720 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.