Ground-Water Information Center Water Quality Report Site Name: PERKINS, CRAIG  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2002Q0095 / 120963 Sample Date: 8/7/2001 12:35:00 PM Location (TRS): 09N 09E 01 BCCB Agency/Sampler: MBMG / MLH Latitude/Longitude: 46° 34' 16" N 110° 32' 40" W Field Number: 120963 Datum: NAD83 Lab Date: 11/20/2001 Altitude: 5259.262 Lab/Analyst: MBMG / JMC County/State: MEAGHER / MT Sample Method/Handling: PUMPED / 4220 Site Type: WELL Procedure Type: DISSOLVED Geology: 400RVLL Total Depth (ft): 197 USGS 7.5' Quad: CHECKERBOARD 7 1/2' SWL-MP (ft): 38 PWS Id: Depth Water Enters (ft): 0 Project: GWAAMON, RADON Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 151.000 7.535 Bicarbonate (HCO3) 274.300 4.496 Magnesium (Mg) 85.700 7.052 Carbonate (CO3) 0.000 0.000 Sodium (Na) 15.000 0.653 Chloride (Cl) 7.110 0.201 Potassium (K) 4.060 0.104 Sulfate (SO4) 563.000 11.727 Iron (Fe) 0.068 0.002 Nitrate (as N) 1.14 P 0.081 Manganese (Mn) 0.002 0.000 Fluoride (F) 0.086 0.005 Silica (SiO2) 16.100 Orthophosphate (as P) <.5 0.000 Total Cations 15.386 Total Anions 16.510 Trace Element Results (µg/L) Aluminum (Al): <150 Cesium (Cs): NR Molybdenum (Mo): <50 Strontium (Sr): 1,490.000 Antimony (Sb): <10 Chromium (Cr): <10 Nickel (Ni): <10 Thallium (Tl): <25 Arsenic (As): <5 Cobalt (Co): <10 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 28.300 Copper (Cu): 32.400 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): 36.300 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <500 Lead (Pb): <10 Rubidium (Rb): NR Uranium (U): <2.5 Cadmium (Cd): <10 Lithium (Li): 97.900 Silver (Ag): <5 Vanadium (V): <25 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): 9.030 Zinc (Zn): 55.800 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 976.76 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 1115.79 Hardness as CaCO3: 729.79 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 1048 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 1404 Alkalinity as CaCO3 (mg/L): 224.73 Phosphorus, TD (mg/L): <.05 Field pH: 7.42 Ryznar Stability Index: 5.879 Field Nitrate (mg/L): NR Lab pH: 8.06 Sodium Adsorption Ratio: 0.2416 Field Dissolved O2 (mg/L): NR Water Temp (°C): 16.3 Langlier Saturation Index: 1.091 Field Chloride (mg/L): NR Air Temp (°C): 32 Nitrite (mg/L as N): NR 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 COLORLESS 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.