Ground-Water Information Center Water Quality Report Site Name: LERITZ ED  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2002Q1248 / 195295 Sample Date: 5/10/2002 12:30:00 PM Location (TRS): 01S 06E 20 ABDC Agency/Sampler: GCWQD / ARE Latitude/Longitude: 45° 44' 26" N 111° 0' 20" W Field Number: M195295 Datum: NAD27 Lab Date: 7/2/2002 Altitude: Lab/Analyst: MBMG / JMC County/State: GALLATIN / MT Sample Method/Handling: GRAB / 4230 Site Type: WELL Procedure Type: DISSOLVED Geology: 500GNSC Total Depth (ft): 320 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): NR Project: Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 4.250 0.212 Bicarbonate (HCO3) 0.000 0.000 Magnesium (Mg) 0.037 0.003 Carbonate (CO3) 26.400 0.945 Sodium (Na) 49.400 2.149 Chloride (Cl) 3.470 0.098 Potassium (K) 0.239 0.006 Sulfate (SO4) 80.400 1.675 Iron (Fe) 0.013 0.000 Nitrate (as N) 2.12 P 0.151 Manganese (Mn) <.001 0.000 Fluoride (F) 1.720 0.091 Silica (SiO2) 24.400 Orthophosphate (as P) <.05 0.000 Total Cations 2.405 Total Anions 2.960 Trace Element Results (µg/L) Aluminum (Al): <30 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 65.500 Antimony (Sb): <2 Chromium (Cr): <2 Nickel (Ni): <2 Thallium (Tl): <5 Arsenic (As): <1 Cobalt (Co): <2 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 6.940 Copper (Cu): <2 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): 360.000 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): <2 Rubidium (Rb): NR Uranium (U): <.5 Cadmium (Cd): <2 Lithium (Li): 49.200 Silver (Ag): <1 Vanadium (V): <5 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <1 Zinc (Zn): 3.000 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 188.29 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 188.29 Hardness as CaCO3: 10.76 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 324 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 273 Alkalinity as CaCO3 (mg/L): 49.25 Phosphorus, TD (mg/L): <.05 Field pH: 10.27 Ryznar Stability Index: 8.678 Field Nitrate (mg/L): NR Lab pH: 9.68 Sodium Adsorption Ratio: 6.4992 Field Dissolved O2 (mg/L): NR Water Temp (°C): 7.2 Langlier Saturation Index: 0.501 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) NR Hydroxide (mg/L as OH): 1.904 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: SAMPLE REANALYZED AND RESULTS CONFIRMED

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.