Ground-Water Information Center Water Quality Report Site Name: LYMAN SPRINGS LYMAN Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2011Q0545 / 259613 Sample Date: 9/29/2010 8:30:00 AM Location (TRS): 01S 06E 21 DD Agency/Sampler: MBMG / SCHAFFER, MARK A. Latitude/Longitude: 45° 43' 56" N 110° 59' 1" W Field Number: LYMAN Datum: WGS84 Lab Date: 1/26/2011 Altitude: Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: GRAB / 0 Site Type: SPRING Procedure Type: DISSOLVED Geology: Total Depth (ft): NR USGS 7.5' Quad: KELLY CREEK SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): NR Project: BRIDGER Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 38.200 1.906 Bicarbonate (HCO3) 171.800 2.816 Magnesium (Mg) 16.300 1.341 Carbonate (CO3) 2.930 0.105 Sodium (Na) 0.524 0.023 Chloride (Cl) <0.5 0.000 Potassium (K) 0.569 0.015 Sulfate (SO4) 17.500 0.365 Iron (Fe) 0.015 0.001 Nitrate (as N) 0.168 0.012 Manganese (Mn) <0.001 0.000 Fluoride (F) 0.180 0.009 Silica (SiO2) 5.240 Orthophosphate (as P) <0.1 0.000 Total Cations 3.288 Total Anions 3.307 Trace Element Results (µg/L) Aluminum (Al): <2.0 Cesium (Cs): <0.5 Molybdenum (Mo): 0.834 Strontium (Sr): 90.100 Antimony (Sb): <0.2 Chromium (Cr): <0.2 Nickel (Ni): 0.547 Thallium (Tl): <0.2 Arsenic (As): 0.330 Cobalt (Co): <0.2 Niobium (Nb): <0.2 Thorium (Th): <0.2 Barium (Ba): 26.900 Copper (Cu): <0.5 Neodymium (Nd): <0.2 Tin (Sn): <0.2 Beryllium (Be): <0.2 Gallium (Ga): <0.2 Palladium (Pd): <0.5 Titanium (Ti): 0.245 Boron (B): 3.590 Lanthanum (La): <0.2 Praseodymium (Pr): <0.2 Tungsten (W): <0.2 Bromide (Br): <50 Lead (Pb): <0.2 Rubidium (Rb): <0.5 Uranium (U): 0.735 Cadmium (Cd): <0.2 Lithium (Li): <2.0 Silver (Ag): <0.2 Vanadium (V): 0.268 Cerium (Ce): <0.2 Mercury (Hg): NR Selenium (Se): 0.757 Zinc (Zn): <1.0 Zirconium (Zr): <0.2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 167.23 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 254.5 Hardness as CaCO3: 162.48 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 321 Alkalinity as CaCO3 (mg/L): 146.07 Phosphorus, TD (mg/L): <0.025 Field pH: NR Ryznar Stability Index: 7.137 Field Nitrate (mg/L): NR Lab pH: 8.37 Sodium Adsorption Ratio: 0.0341 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: 0.617 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) <0.2 P 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) <1.0 P 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: DISCHARGE/OVERFLOW FROM SPRING BOX, WHICH SERVES AS INTAKE FOR TREATMENT PLANT 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.