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Water Supply Development Analyses PDF Print E-mail

Analytical Methods, Practical Detection Limits (PDL), Containers, Preservation, and Holding Times for Selected Analytes

These analyses are recommended for those developing a new water supply as a source for drinking water. This test series should be run early in the development process, as the data may prove valuable in making informed decisions about whether to continue developing this source, types of water treatment, the water's suitability for other uses, etc. You must contact the lab at (307) 742-2984 for a price quote, sample bottles and sampling instructions prior to submitting samples.

Determination 1995 Std. Methods, 19th Ed. EPA Method No. PDL mg/L Container Preservation Holding Time Max
Cations
Calcium 3111B
0.1 Plastic/Glass HNO3 to pH<2 6 months
Magnesium 3111B
0.1 Plastic/Glass HNO3 to pH<2 6 months
Sodium 3111B
0.1 Plastic/Glass HNO3 to pH<2 6 months
Potassium 3111B
0.1 Plastic/Glass HNO3 to pH<2 6 months
Anions
Alkalinity 2320B

Plastic/Glass Cool to 4°C 14 days
Chloride 4110B, 4500-Cl- F. 300.0 0.10 Plastic/Glass Cool to 4°C 48 hours
Fluoride 4110B, 4500-F-F. 300.0 0.10 Plastic/Glass Cool to 4°C 48 hours
Nitrate 4110B, 4500-NO3- C. 300.0 0.10 Plastic/Glass Cool to 4°C 48 hours
Nitrite 4110B, 4500- NO2-C. 300.0 0.10 Plastic/Glass Cool to 4°C 48 hours
Sulfate 4110B, 4500- SO4-C. 300.0 0.10 Plastic/Glass Cool to 4°C 48 hours
Metals
Copper 3111B
0.05 Plastic/Glass HNO3 to pH<2 6 months
Iron 3111B
0.05 Plastic/Glass HNO3 to pH<2 6 months
Lead 3111B 200.9 0.002 Plastic/Glass HNO3 to pH<2 6 months
Manganese 3111B
0.05 Plastic/Glass HNO3 to pH<2 6 months
Zinc 3111B
0.05 Plastic/Glass HNO3 to pH<2 6 months
Other
Conductivity 2510B
1 uS/cm Plastic/Glass Cool to 4°C 28 days
Corrosivity Calculated

Plastic/Glass

Hardness, Calculated 2340B
1 Plastic/Glass HNO3 to pH<2 6 months
pH 4500-H+ B 150.1
Plastic/Glass None, Cool to 4°C 14 days
Solids, TDS by Summation

Plastic/Glass

Total Alkalinity Calculated

Plastic/Glass
14 days

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Wyoming Department of Agriculture