Ground-Water Information Center Water Quality Report Site Name: DRY CREEK AT VALLEY CTR. RD DCVCRD Report Date: 4/26/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 201652 / 257428 Sample Date: 5/2/2012 12:45:00 PM Location (TRS): 01S 05E 19 CC Agency/Sampler: MBMG / SCOTT, JEFF Latitude/Longitude: 45° 43' 45" N 111° 9' 33" W Field Number: 257428 Datum: NAD83 Lab Date: 7/3/2012 3:04:49 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: BOZEMAN HOT SPRINGS 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) 47.990 2.395 Bicarbonate (HCO3) 216.670 3.551 Magnesium (Mg) 14.810 1.219 Carbonate (CO3) 13.030 0.467 Sodium (Na) 10.150 0.442 Chloride (Cl) 4.640 0.131 Potassium (K) 2.790 0.071 Sulfate (SO4) 13.500 0.281 Iron (Fe) 0.020 J 0.000 Nitrate (as N) 1.230 0.088 Manganese (Mn) 0.004 J 0.000 Fluoride (F) 0.160 0.008 Silica (SiO2) 17.790 Orthophosphate (as P) <0.020 U 0.000 Total Cations 4.133 Total Anions 4.526 Trace Element Results (µg/L) Aluminum (Al): 14.480 Cesium (Cs): <0.100 U Molybdenum (Mo): 0.560 Strontium (Sr): 145.040 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): 1.400 Thallium (Tl): <0.100 U Arsenic (As): 1.070 Cobalt (Co): 0.170 J Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 63.990 Copper (Cu): 0.570 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): 0.460 J Boron (B): 15.600 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): 1.250 Uranium (U): 2.430 Cadmium (Cd): <0.100 U Lithium (Li): 0.510 J Silver (Ag): <0.100 U Vanadium (V): 2.890 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.110 J Zinc (Zn): 0.500 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 233.71 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 343.82 Hardness as CaCO3: 180.79 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 422 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 521.2 Alkalinity as CaCO3 (mg/L): 199.66 Phosphorus, TD (mg/L): <0.030 U Field pH: 8.87 Ryznar Stability Index: 6.587 Field Nitrate (mg/L): NR Lab pH: 8.45 Sodium Adsorption Ratio: 0.3236 Field Dissolved O2 (mg/L): NR Water Temp (°C): 9.7 Langlier Saturation Index: 0.931 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): 0.070 Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) 1.300 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) 1.300 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.