June 2009
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Monitoring & Testing E-Zine June 2009 |
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| This Month´s Featured Articles, Papers & Reports |
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Recruiting homes for lead monitoring
Sampling for lead in a drinking water distribution system is not an easy task. While other water quality characteristics, such as alkalinity and temperature, vary throughout the distribution system in a somewhat predictable fashion over time and location, lead concentrations vary unpredictably, depending on the water`s exposure to lead materials in building plumbing systems and the duration of exposure. When sampling for lead to meet the regulatory requirements of the Lead and Copper Rule, the ... |
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Method for irrigation scheduling based on soil moisture data acquisition
The water requirements of crops are dependent on evapotranspiration (ET), soil chemistry, and the crop’s maximum allowable depletion (MAD). Direct measurements of root zone soil moisture, water application along with published ET values and soil textures, can be used in a soil water balance model that can significantly optimize irrigation efficiency. Over the past five years, advancements in computer microprocessors, memory, and software development tools has improved data acquisition methods and ... |
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