Ground-Water Information Center Water Quality Report Site Name: EAST GALLATIN AT PENWELL BRIDGE EGPWBR
Report Date: 3/29/2024 Compare to Water Quality Standards

Location Information
Sample Id/Site Id: 200763 / 258311 Sample Date: 9/16/2011 10:25:00 AM
Location (TRS): 01N 05E 29 AC Agency/Sampler: MBMG / HENNE, BILL
Latitude/Longitude: 45° 48' 18" N 111° 7' 54" W Field Number: EGPWBR
Datum: NAD83 Lab Date: 12/20/2011 7:36:09 AM
Altitude: Lab/Analyst: MBMG / MCGRATH, STEVE
County/State: GALLATIN / MT Sample Method/Handling: GRAB / ru:1 ra:0 fu:1 fa:2
Site Type: STREAM Procedure Type: DISSOLVED
Geology: Staff Gage Reading: NR
USGS 7.5' Quad: BELGRADE Stream Stage: NR
PWS Id: Stream Discharge (cfs): NR  -  NR
Project: BWIPMN 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) 50.900 2.540 Bicarbonate (HCO3) 217.610 3.567
Magnesium (Mg) 14.900 1.226 Carbonate (CO3) 0.000 0.000
Sodium (Na) 11.050 0.481 Chloride (Cl) 9.340 0.263
Potassium (K) 3.160 0.081 Sulfate (SO4) 18.700 0.390
Iron (Fe) 0.007 J 0.000 Nitrate (as N) 0.240 0.017
Manganese (Mn) 0.004 J 0.000 Fluoride (F) 0.210 0.011
Silica (SiO2) 12.720 Orthophosphate (as P) <0.020 U 0.000
Total Cations 4.334 Total Anions 4.248
Trace Element Results (µg/L)
Aluminum (Al): 2.240 Cesium (Cs): <0.100 U Molybdenum (Mo): 0.800 Strontium (Sr): 182.520
Antimony (Sb): <0.100 U Chromium (Cr): 0.220 J Nickel (Ni): 1.190 Thallium (Tl): <0.100 U
Arsenic (As): 0.900 Cobalt (Co): 0.420 J Niobium (Nb): <0.100 U Thorium (Th): <0.100 U
Barium (Ba): 59.720 Copper (Cu): 0.690 Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U
Beryllium (Be): <0.100 U Gallium (Ga): <0.100 U Palladium (Pd): <0.100 U Titanium (Ti): 0.430 J
Boron (B): 19.360 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U
Bromide (Br): <10.000 U Lead (Pb): <0.040 U Rubidium (Rb): 1.700 Uranium (U): 1.480
Cadmium (Cd): <0.100 U Lithium (Li): 1.900 J Silver (Ag): <0.100 U Vanadium (V): 1.610
Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.290 J Zinc (Zn): 3.320
Zirconium (Zr): <0.100 U
Field Chemistry and Other Analytical Results
**Total Dissolved Solids (mg/L): 228.2 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR
**Sum of Diss. Constituents (mg/L): 338.81 Hardness as CaCO3: 188.43 T.P. Hydrocarbons (µg/L): NR
Field Conductivity (µmhos): 392 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR
Lab Conductivity (µmhos): 408 Alkalinity as CaCO3 (mg/L): 178.8 Phosphorus, TD (mg/L): 0.065
Field pH: 8.28 Ryznar Stability Index: 7.122 Field Nitrate (mg/L): NR
Lab pH: 7.96 Sodium Adsorption Ratio: 0.3487 Field Dissolved O2 (mg/L): NR
Water Temp (°C): 13.9 Langlier Saturation Index: 0.419 Field Chloride (mg/L): NR
Air Temp (°C): NR Nitrite (mg/L as N): 0.080 Field Redox (mV): NR
Nitrate + Nitrite (mg/L as N) 0.340 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) <1.000 U 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.