Ground-Water Information Center Water Quality Report Site Name: MT FWP - SELKIRK FISHING ACCESS - HOMESTEAD WELL 
Report Date: 12/10/2019 Compare to Water Quality Standards

Location Information
Sample Id/Site Id: 2010Q0418 / 184127 Sample Date: 10/21/2009 11:55:00 AM
Location (TRS): 08N 12E 09 DBBD Agency/Sampler: MBMG / MASON, DONALD C.
Latitude/Longitude: 46° 27' 55" N 110° 13' 34" W Field Number: 184127
Datum: NAD83 Lab Date: 1/20/2010
Altitude: 4645.069 Lab/Analyst: MBMG / SM
County/State: WHEATLAND / MT Sample Method/Handling: GRAB / 4230
Site Type: WELL Procedure Type: DISSOLVED
Geology: 211CLGT Total Depth (ft): 81.4
USGS 7.5' Quad: TWODOT NORTHWEST SWL-MP (ft): 7.31
PWS Id: Depth Water Enters (ft): NR
Project: GWAAMON
Major Ion Results
mg/L meq/L mg/L meq/L
Calcium (Ca) 8.140 0.406 Bicarbonate (HCO3) 337.900 5.538
Magnesium (Mg) 2.470 0.203 Carbonate (CO3) 15.600 0.559
Sodium (Na) 828.000 36.018 Chloride (Cl) 19.430 0.548
Potassium (K) 1.910 0.049 Sulfate (SO4) 1,557.000 32.432
Iron (Fe) 0.091 0.003 Nitrate (as N) <0.5 P 0.000
Manganese (Mn) 0.006 0.000 Fluoride (F) 1.910 0.101
Silica (SiO2) 6.270 Orthophosphate (as P) <1.0 0.000
Total Cations 36.701 Total Anions 39.178
Trace Element Results (g/L)
Aluminum (Al): <75.6 Cesium (Cs): <1.0 Molybdenum (Mo): <1.0 Strontium (Sr): 838.000
Antimony (Sb): <1.0 Chromium (Cr): <1.0 Nickel (Ni): <1.1 Thallium (Tl): <1.0
Arsenic (As): <0.6 Cobalt (Co): <0.6 Niobium (Nb): <1.0 Thorium (Th): <1.0
Barium (Ba): 8.500 Copper (Cu): <3.9 Neodymium (Nd): <1.0 Tin (Sn): <1.0
Beryllium (Be): <1.8 Gallium (Ga): <1.0 Palladium (Pd): <0.6 Titanium (Ti): 16.300
Boron (B): 6.300 Lanthanum (La): <1.0 Praseodymium (Pr): <1.0 Tungsten (W): <1.0
Bromide (Br): <1000 Lead (Pb): <4.0 Rubidium (Rb): 1.670 Uranium (U): <1.0
Cadmium (Cd): <1.0 Lithium (Li): 67.100 Silver (Ag): <1.0 Vanadium (V): <0.8
Cerium (Ce): <1.0 Mercury (Hg): NR Selenium (Se): <1.0 Zinc (Zn): 45.600
Zirconium (Zr): <1.0
Field Chemistry and Other Analytical Results
**Total Dissolved Solids (mg/L): 2607.16 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR
**Sum of Diss. Constituents (mg/L): 2778.66 Hardness as CaCO3: 30.49 T.P. Hydrocarbons (g/L): NR
Field Conductivity (mhos): 3630 Field Alkalinity as CaCO3 (mg/L): 285 PCP (g/L): NR
Lab Conductivity (mhos): 3410 Alkalinity as CaCO3 (mg/L): 303.9 Phosphorus, TD (mg/L): <0.301
Field pH: 8.87 Ryznar Stability Index: 7.623 Field Nitrate (mg/L): 0.000
Lab pH: 8.59 Sodium Adsorption Ratio: 65.2482 Field Dissolved O2 (mg/L): 0.500
Water Temp (C): 9.3 Langlier Saturation Index: 0.483 Field Chloride (mg/L): NR
Air Temp (C): NR Nitrite (mg/L as N): NR Field Redox (mV): -316
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
Sample Condition:
Field Remarks:
Lab Remarks:
Explanation: mg/L = milligrams per Liter; g/L = micrograms per Liter; ft = feet; NR = No Reading in GWIC
Qualifiers: A = Hydride atomic absorption; E = Estimated due to interference; H = Exceeded holding time; J = Estimated quantity above detection limit but below reporting limit; K = Na+K combined; N = Spiked sample recovery not within control limits; 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.
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.