Ground-Water Information Center Water Quality Report Site Name: GLWQD MONITORING WELL * ALTENBRAND PARK SHALLOW COMPLETION  Report Date: 4/24/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2006Q1231 / 226764 Sample Date: 6/8/2006 1:30:00 PM Location (TRS): 01N 03E 10 AAAB Agency/Sampler: MBMG / MDK Latitude/Longitude: 45° 51' 37" N 111° 19' 42" W Field Number: ABP-S Datum: NAD83 Lab Date: 7/10/2006 Altitude: 4241.22 Lab/Analyst: MBMG / WO County/State: GALLATIN / MT Sample Method/Handling: PUMPED / 3111 Site Type: WELL Procedure Type: DISSOLVED Geology: 111SNGR Total Depth (ft): 29 USGS 7.5' Quad: MANHATTAN SWL-MP (ft): 15.38 PWS Id: Depth Water Enters (ft): 18 Project: GALVAL, GWAAMON, GWCP08,  NGWMN-MONTANA, BWIP4CSWL1, GWCP08MON Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 72.400 3.613 Bicarbonate (HCO3) 323.600 5.304 Magnesium (Mg) 27.700 2.279 Carbonate (CO3) 0.000 0.000 Sodium (Na) 35.100 1.527 Chloride (Cl) 20.000 0.564 Potassium (K) 8.320 0.213 Sulfate (SO4) 83.100 1.731 Iron (Fe) 0.008 0.000 Nitrate (as N) 2.620 0.187 Manganese (Mn) 0.014 0.001 Fluoride (F) 0.310 0.016 Silica (SiO2) 27.600 Orthophosphate (as P) <0.05 0.000 Total Cations 7.650 Total Anions 7.802 Trace Element Results (µg/L) Aluminum (Al): <10 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 465.000 Antimony (Sb): <2 Chromium (Cr): 3.750 Nickel (Ni): <2 Thallium (Tl): <5 Arsenic (As): 3.000 Cobalt (Co): <2 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 69.300 Copper (Cu): <2 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): 69.600 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): <2 Rubidium (Rb): NR Uranium (U): 11.700 Cadmium (Cd): <1 Lithium (Li): 13.900 Silver (Ag): <1 Vanadium (V): 5.600 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): 2.550 Zinc (Zn): <2 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 436.71 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 601.1 Hardness as CaCO3: 294.8 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 653 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 690 Alkalinity as CaCO3 (mg/L): 265.74 Phosphorus, TD (mg/L): <0.05 Field pH: 7.31 Ryznar Stability Index: 7.232 Field Nitrate (mg/L): NR Lab pH: 7.2 Sodium Adsorption Ratio: 0.887 Field Dissolved O2 (mg/L): NR Water Temp (°C): 9.8 Langlier Saturation Index: -0.016 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.05 Field Redox (mV): 264.6 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.