Ground-Water Information Center Water Quality Report Site Name: LCWQPD - SIERRA AND FLOWEREE NORTH WELL  Report Date: 4/20/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2003Q0369 / 191526 Sample Date: 8/27/2002 10:45:00 AM Location (TRS): 10N 03W 03 BABB Agency/Sampler: MBMG / JPM Latitude/Longitude: 46° 39' 38" N 111° 58' 21" W Field Number: 191526 Datum: WGS84 Lab Date: 12/23/2002 Altitude: 3685.856 Lab/Analyst: MBMG / KTH County/State: LEWIS AND CLARK / MT Sample Method/Handling: PUMPED / 3120 Site Type: WELL Procedure Type: DISSOLVED Geology: 110ALVM Total Depth (ft): 46 USGS 7.5' Quad: LAKE HELENA SWL-MP (ft): 4.88 PWS Id: Depth Water Enters (ft): 36 Project: LCWQPD, GWAAMON, COLIPHAGE,  NGWMN-MONTANA Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 49.100 2.450 Bicarbonate (HCO3) 177.800 2.914 Magnesium (Mg) 12.500 1.029 Carbonate (CO3) 0.000 0.000 Sodium (Na) 14.100 0.613 Chloride (Cl) 4.040 0.114 Potassium (K) 2.960 0.076 Sulfate (SO4) 56.600 1.179 Iron (Fe) 0.010 0.000 Nitrate (as N) 1.300 0.093 Manganese (Mn) <0.001 0.000 Fluoride (F) 0.198 0.010 Silica (SiO2) 23.000 Orthophosphate (as P) <.05 0.000 Total Cations 4.175 Total Anions 4.310 Trace Element Results (µg/L) Aluminum (Al): <30 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 298.000 Antimony (Sb): <10 Chromium (Cr): <10 Nickel (Ni): <2 Thallium (Tl): <20 Arsenic (As): <10 Cobalt (Co): <2 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 49.100 Copper (Cu): <5 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): <30 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): <10 Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): <1 Lithium (Li): 14.000 Silver (Ag): NR Vanadium (V): <10 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <15 Zinc (Zn): <2 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 251.28 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 341.6 Hardness as CaCO3: 174.05 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 390 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 412 Alkalinity as CaCO3 (mg/L): 145.99 Phosphorus, TD (mg/L): <0.05 Field pH: 7.66 Ryznar Stability Index: 7.649 Field Nitrate (mg/L): NR Lab pH: 7.64 Sodium Adsorption Ratio: 0.4618 Field Dissolved O2 (mg/L): NR Water Temp (°C): 8.4 Langlier Saturation Index: -0.005 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <.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: 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.