Ground-Water Information Center Water Quality Report Site Name: LCWQPD - NORTH HILLS WELL 
Report Date: 5/27/2022 Compare to Water Quality Standards

Location Information
Sample Id/Site Id: 2011Q0695 / 191532 Sample Date: 10/20/2010 3:15:00 PM
Location (TRS): 11N 03W 07 BCDA Agency/Sampler: MBMG / SWIERC, JAMES E.
Latitude/Longitude: 46° 43' 42" N 112° 2' 10" W Field Number:
Datum: WGS84 Lab Date: 2/25/2011
Altitude: 3882.667 Lab/Analyst: MBMG / SM
County/State: LEWIS AND CLARK / MT Sample Method/Handling: PUMPED / 5230
Site Type: WELL Procedure Type: DISSOLVED
Geology: 110ALVM Total Depth (ft): 100
PWS Id: Depth Water Enters (ft): 90
Major Ion Results
mg/L meq/L mg/L meq/L
Calcium (Ca) 41.000 2.046 Bicarbonate (HCO3) 202.700 3.322
Magnesium (Mg) 16.400 1.350 Carbonate (CO3) 0.000 0.000
Sodium (Na) 14.300 0.622 Chloride (Cl) 7.510 0.212
Potassium (K) 0.971 0.025 Sulfate (SO4) 18.740 0.390
Iron (Fe) 0.041 0.001 Nitrate (as N) 0.981 0.070
Manganese (Mn) 0.005 0.000 Fluoride (F) 0.208 0.011
Silica (SiO2) 16.400 Orthophosphate (as P) <0.1 0.000
Total Cations 4.057 Total Anions 4.005
Trace Element Results (µg/L)
Aluminum (Al): 60.100 Cesium (Cs): <0.5 Molybdenum (Mo): 1.480 Strontium (Sr): 209.000
Antimony (Sb): <0.2 Chromium (Cr): 0.216 Nickel (Ni): 0.534 Thallium (Tl): <0.2
Arsenic (As): 0.781 Cobalt (Co): 1.350 Niobium (Nb): <0.5 Thorium (Th): <0.2
Barium (Ba): 101.000 Copper (Cu): <0.5 Neodymium (Nd): <0.2 Tin (Sn): <0.5
Beryllium (Be): <0.2 Gallium (Ga): <0.2 Palladium (Pd): <0.5 Titanium (Ti): 1.260
Boron (B): 15.600 Lanthanum (La): <0.2 Praseodymium (Pr): <0.2 Tungsten (W): <0.2
Bromide (Br): 74.000 Lead (Pb): <0.2 Rubidium (Rb): 0.585 Uranium (U): 2.050
Cadmium (Cd): <0.2 Lithium (Li): 4.290 Silver (Ag): <0.2 Vanadium (V): 0.603
Cerium (Ce): <0.2 Mercury (Hg): NR Selenium (Se): 0.811 Zinc (Zn): 0.946
Zirconium (Zr): <0.2
Field Chemistry and Other Analytical Results
**Total Dissolved Solids (mg/L): 216.46 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR
**Sum of Diss. Constituents (mg/L): 319.46 Hardness as CaCO3: 169.88 T.P. Hydrocarbons (µg/L): NR
Field Conductivity (µmhos): 280.4 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR
Lab Conductivity (µmhos): 342 Alkalinity as CaCO3 (mg/L): 166.49 Phosphorus, TD (mg/L): <0.025
Field pH: 7.93 Ryznar Stability Index: 7.402 Field Nitrate (mg/L): NR
Lab pH: 7.93 Sodium Adsorption Ratio: 0.4674 Field Dissolved O2 (mg/L): NR
Water Temp (°C): 11.7 Langlier Saturation Index: 0.264 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) 0.941 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
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: 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.