Case Studies

Integrated Systems 

• Harlan High School Monitors Local Iowa Watersheds
  It's no typical chemistry class at Harlan High School in Harlan, Iowa, where a class project monitors two local watersheds, thanks to a grant from the Iowa Department of Natural Resources and a Hach Environmental solution incorporating both Hydrolab and OTT products. Read more

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Water Quality Sondes

DataSonde 4a

• OTT and Hydrolab Provide Integrated, Turnkey Solution for the River Tyne
  In August 2003 Posford Haskoning, a leading Engineering Consultancy in the UK, contracted OTT Hydrometry Ltd (OHL) to design, deploy, and manage a system of four water quality monitoring buoys on the lower tidal reach of the River Tyne in northeast England. The system is based on an integrated solution that combines the strength of products from Hydrolab and OTT to provide a complete turnkey solution for the site. Read more
   
• Protecting Drinking Water in Central Taiwan
  When the Taiwan Environment Protection Agency needed to build two real-time, long-term monitoring stations on the Sun Moon Reservoir, it looked to Hydrolab for the critical measurement instruments. Read more

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Water Quality Sensors

Chlorophyll a by Turner Designs

• Real-Time Data Helps Facility Combat Algae
  During the severe drought of 2001 and 2002, the North Jersey District Water Supply Commission pumped more than 32 billion gallons from the Passiac and Ramapo rivers and stored it in the Wanaque Reservoir. While siphoning off the nutrient-rich river water ensured a steady water supply for the people of northern New Jersey, it also increased the likelihood of a serious algae bloom that could make the water supply unsafe. Read more
   
• Vermont Agency of Natural Resources uses Hydrolab Equipment with Turner Designs' Chorophyll a Sensor
  Turner Designs has designed a Chlorophyll a sensor specifically for integration into the Hydrolab DataSonde. This sensor is based on the CYCLOPS-7 technology, and offers the most accurate Chlorophyll a measurement available on a multi-parameter instrument. Read more

Blue-Green Algae 

• Public Water Systems Benefit from Real-Time Monitoring for Chlorophyll and Cyanobacteria Using Hydrolab DataSonde and Turner Designs Fluorometers
  Each PWS should modify its traditional algae monitoring program to include fluorometric analyses in the field, on-line, and in the laboratory for both chlorophyll a and cyanobacteria pigments.
  Read more

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Water Level Sensors

Bubbler 

• Using the OTT Nimbus in the Potomac River
  The ICPRB recently embarked on a program to monitor the water level using automated sensors and real-time modem communication. They chose the OTT Nimbus bubbler sensor with Hydras 3 software to accomplish this task. Read more

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Precipitation Sensors

Precipitation Gauge 

• Proven OTT Precipitation Gauge Chosen for Critical Applications Nationwide
  Several U.S. government agencies have recently designated OTT as their official precipitation gauge following extensive testing and evaluation. Read more

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