Methods

All methods are from Standard Methods for the Examination of Water and Wastewater, APHA, 21st edition

Total Coliforms: DST Colilert18 Quantitray

E. coli: DST Colilert18 Quantitray

pH: pH Electrode

Conductivity: Conductance Meter

Alkalinity: Titration to pH 4.5

Turbidity: Turbidimeter

Nutrients high level: Ion Chromatography

Nutrients low level: Automated or Manual Colorimetry or Ion Selective Electrode

Minerals and Metals: Flame Atomic Absorption Spectroscopy

Arsenic: Automated Hydride Generation Atomic Absorption Spectroscopy

Lead: Graphite Furnace Atomic Absorption Spectroscopy

pH: 1:1 soil:water by volume

EC: 1:1 soil:water by volume

Lime Requirement: Sikora Buffer

Organic Matter: Ben-Dor, E and A. Banin. 1989. Determination of organic matter content in arid-zone soils using a simple "loss-on-ignition" method. Commun. Soil Sci. Plant Anal. 20(15-16):1675-1695.

Nitrate-Nitrogen: 1:5 soil:Kelowna Extract Ion Chromatography

Ammonia-Nitrogen: 1:2 soil:0.05M Calcium Chloride Colorimetry

Phosphate-Phosphorous: van Lierop, W. 1988. Determination of available phosphorous in acid and calcareous soils with the Kelowna multiple element extractant. Soil Sci. 149:331-338.

Sulfate- Sulfur: 1:5 soil:Kelowna Extract Ion Chromatography

Potassium: van Lierop, W and NA Gough. 1989. Extraction of potassium and sodium from acid and calcareous soils with the Kelowna multiple element extract. Can. J. Soil Sci. 69:235-242.

Magnesium: Kelowna multiple element extract Flame Atomic Absorption Spectroscopy

Calcium: Kelowna multiple element extract Flame Atomic Absorption Spectroscopy

Iron, Copper, Manganese and Zinc: Lindsay, WL and WA Norvell. 1978. Development of a DTPA soil test for zinc, iron, manganese and copper. Soil Sci. Soc. Am. J. 42:421-428.Flame Atomic Absorption Spectroscopy

Boron: 1:2 soil:0.05 M Calcium Chloride Colorimetry

Nitrogen: Persufate/Autoclave digestion, Ion Chromatography

Phosphorous, Sulfur, Potassium, Calcium, Magnesium, Iron, Copper, Manganese, Zinc Closed Vessel Microwave Digestion, Flame Atomic Absorption Spectroscopy or Ion Chromatography

Boron: Dry Ash Colorimetry