Ground-Water Information Center Water Quality Report Site Name: LOLO CREEK BELOW SLEEMAN GULCH LANDQUIST Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 229525 / 288433 Sample Date: 3/27/2018 11:22:00 AM Location (TRS): 12N 20W 34 CBBB Agency/Sampler: MBMG / SNYDER, DEAN Latitude/Longitude: 46° 45' 16" N 114° 6' 27" W Field Number: LOLO CREEK AT LQ Datum: NAD83 Lab Date: 4/19/2018 10:50:14 AM Altitude: Lab/Analyst: MBMG / TIMMER, JACKIE County/State: MISSOULA / MT Sample Method/Handling: PUMPED / ru:2 ra:0 fu:1 fa:2 Site Type: STREAM Procedure Type: DISSOLVED Geology: Staff Gage Reading: NR USGS 7.5' Quad: SW MISSOULA Stream Stage: NR PWS Id: Stream Discharge (cfs): NR  -  NR Project: BWIPLO, BWIPLOSW, BWIPLOSYN,  BWIPLOMONSW, BWIPLOLITH1, BWIPLOLITHX Stream Width (ft): NR  -  NR Sample Water Use: Sample Depth (ft): NR  -  NR Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 10.960 0.547 Bicarbonate (HCO3) 62.910 1.031 Magnesium (Mg) 3.890 0.320 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.450 0.194 Chloride (Cl) 3.830 0.108 Potassium (K) 0.960 0.025 Sulfate (SO4) 4.340 0.090 Iron (Fe) 0.022 J 0.000 Nitrate (as N) 0.060 0.004 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.150 0.008 Silica (SiO2) 15.560 Orthophosphate (as P) <0.020 U 0.000 Total Cations 1.088 Total Anions 1.242 Trace Element Results (µg/L) Aluminum (Al): 18.720 Cesium (Cs): <0.100 U Molybdenum (Mo): 0.480 J Strontium (Sr): 33.590 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): <0.100 U Thallium (Tl): <0.100 U Arsenic (As): 0.230 J Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 33.200 Copper (Cu): 0.620 J Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 1.560 Palladium (Pd): <0.100 U Titanium (Ti): 1.020 Boron (B): 2.130 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): <0.060 U Rubidium (Rb): 0.680 Uranium (U): 0.510 Cadmium (Cd): <0.100 U Lithium (Li): <2.000 U Silver (Ag): <0.100 U Vanadium (V): 0.330 J Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 2.460 Zirconium (Zr): 0.310 J Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 74.91 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 106.87 Hardness as CaCO3: 43.38 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 106 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 100.34 Alkalinity as CaCO3 (mg/L): 51.67 Phosphorus, TD (mg/L): 0.030 J Field pH: 7.87 Ryznar Stability Index: 9.784 Field Nitrate (mg/L): NR Lab pH: 7.71 Sodium Adsorption Ratio: 0.2643 Field Dissolved O2 (mg/L): 10.600 Water Temp (°C): 2.8 Langlier Saturation Index: -1.037 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.200 U Hydroxide (mg/L as OH): 0.000 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: SAMPLES DURING AQUIFER TEST 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.