Ground-Water Information Center Water Quality Report Site Name: GLWQD MONITORING WELL * DRY CREEK SCHOOL  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2006Q0861 / 226766 Sample Date: 3/1/2006 3:30:00 PM Location (TRS): 01N 04E 03 BABB Agency/Sampler: MBMG / MDK Latitude/Longitude: 45° 52' 26" N 111° 13' 1" W Field Number: DC-S Datum: NAD83 Lab Date: 4/10/2006 Altitude: 4276.52 Lab/Analyst: MBMG / WO County/State: GALLATIN / MT Sample Method/Handling: PUMPED / 3111 Site Type: WELL Procedure Type: DISSOLVED Geology: 111SNGR Total Depth (ft): 45 USGS 7.5' Quad: BELGRADE SWL-MP (ft): 23.67 PWS Id: Depth Water Enters (ft): 29 Project: GALVAL, GWAAMON, GWCP08,  NGWMN-MONTANA, BWIP4CSWL1, GWCP08MON, BWIPMN Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 59.200 2.954 Bicarbonate (HCO3) 244.500 4.007 Magnesium (Mg) 17.500 1.440 Carbonate (CO3) 0.000 0.000 Sodium (Na) 6.630 0.288 Chloride (Cl) 5.490 0.155 Potassium (K) 1.870 0.048 Sulfate (SO4) 15.600 0.325 Iron (Fe) 0.008 0.000 Nitrate (as N) 0.598 0.043 Manganese (Mn) 0.015 0.001 Fluoride (F) 0.180 0.009 Silica (SiO2) 13.300 Orthophosphate (as P) <0.05 0.000 Total Cations 4.737 Total Anions 4.539 Trace Element Results (µg/L) Aluminum (Al): <10 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 206.000 Antimony (Sb): <2 Chromium (Cr): <2 Nickel (Ni): 2.510 Thallium (Tl): <5 Arsenic (As): <1 Cobalt (Co): <2 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 75.500 Copper (Cu): <2 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): 1.020 Boron (B): <30 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): <2 Rubidium (Rb): NR Uranium (U): 0.950 Cadmium (Cd): <1 Lithium (Li): 6.960 Silver (Ag): <1 Vanadium (V): <5 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <1 Zinc (Zn): 30.500 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 241.42 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 365.73 Hardness as CaCO3: 219.85 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 374 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 438 Alkalinity as CaCO3 (mg/L): 200.94 Phosphorus, TD (mg/L): <0.05 Field pH: 7.08 Ryznar Stability Index: 7.549 Field Nitrate (mg/L): NR Lab pH: 7.3 Sodium Adsorption Ratio: 0.2054 Field Dissolved O2 (mg/L): NR Water Temp (°C): 11.4 Langlier Saturation Index: -0.125 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) NR 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) NR 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: CLEAR 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.