MapTech’s experience with environmental monitoring through its personnel spans over 40 years and includes the evolution of monitoring systems from mechanical to real-time automatic data acquisition systems. It includes research with the U.S. Department of Agriculture/Agricultural Research Service (USDA/ARS) watershed engineering program; cutting edge university level research which a heavy focus on monitoring networks (e.g., system design, installation, data collection protocols, maintenance, database management, etc) in support of a variety of watershed level application research programs; and company experience with a strong focus on automated environmental networks and the use of environmental databases to identify pollutant sources.

Sample Collection

The Environmental Monitoring Services (EMS) division of MapTech provides time-efficient and cost-effective sample collection. Source and water collection techniques adhere to strict standardized procedures that are designed to provide accurate and thorough sampling.
Source Sampling
EMS personnel collect source samples from watershed locales in order to pinpoint the sources of bacteria in water bodies. Fecal samples from wildlife, livestock, pets, and humans are collected and stored for transport to MapTech’s Environmental Diagnostics Laboratory (EDL) for analysis.

Source collection is the first step in the process that allows for the bacteria problem to be quantified and mitigated.
Water Sampling
EMS personnel take water samples adhering to written guidelines which ensure the most representative sample. A fully equipped mobile laboratory provides for on-site analysis of samples in order to operate under the necessary time restrictions. The samples must be processed within 28 hours.

Discharge Measurement

The Environmental Monitoring Services (EMS) division of MapTech provides various forms of discharge measurement.
Stream Cross-Sections
EMS personnel perform cross-sections on streams in order to record the data necessary to characterize the stream. At a minimum, six measurements are taken that will document the width, depth, and channel variations in the stream reach. This data is then input into the model, which interprets how the particular characteristics influence stream flow, and any pollutants that are present.
Weather Station Monitoring
The weather station typically consists of the support structure, power system, data recording system, communication instruments and weather sensors. MapTech’s EMS is responsible for the installation, calibration, operation, maintenance, and documentation of weather stations for the purpose of early flood alerts.
The Integrated Flood Observing and Warning System is an integrated network of precipitation and stream gage monitors connected via radio, microwave, and landline communication linkages, designed to provide real-time data for early warning of flood events. MapTech personnel are responsible for installing new instrumentation as well as monitoring, repairing, and maintaining 285 sites throughout the state of Virginia.
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