Multiple Outfall Flow Monitoring Application Challenge

ISCO Signature Flow Meter

A recent application challenge was presented to us by an industrial customer in the Southeast Texas area. The customer was relocating their final outfall from their wetland treatment system to a remote area without AC power. They needed a way to measure flow rates in three side by side 36” culverts and collect flow weighted…

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New Approach to Collection System Assessment & Management

RedZone Robotics has a new approach to collection system assessment and management.  Using robots equipped with multiple sensors, collection system inspections can combine conventional qualitative CCTV with synchronized laser and sonar dimension information all collected several times faster than conventional CCTV trucks.  This unique full 360° quantitative view of the pipeline can help to pinpoint which lines in…

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Water Quality Monitoring….There’s An App For That!

In-Situ, Inc. has announced the release of the new SmarTROLL Multiparameter Probe with smartphone app.  The SmarTROLL multiprobe system measures pH/ORP, conductivity, DO (optical), water level, salinity, TDS, resistivity, density, as well as air temperature and barometric pressure.  The SmarTROLL multiprobe connects via cable to a battery pack with Bluetooth communications and up to 80…

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Thermo Scientific Factory Authorized Service Provider

We are proud to announce that C.C. Lynch is now a factory authorized service provider for Thermo Scientific Water Analysis Instruments On-Line Analyzers in Texas, Louisiana, Mississippi, and Alabama. 

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What’s a Packaged Metering Manhole?

The Packaged Metering Manhole was introduced to the wastewater market by Plasti-Fab, Inc. in 1982. In its simplest form it consists of a flume molded into a composite (FRP) manhole. The full range of flumes may be integrally molded into the composite manhole, along with inlet and outlet adapters, pipe stubs, and monitoring accessories for…

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Plasti-Fab Engineered Composite Flow Control Gates . . . . . There Is a Difference!

Article courtesy of Mike Keegan with Plasti-Fab, Inc. Referring to a Plasti-Fab gate or stop log as FIBERGLASS  is like stating a Porsche Carrera GT is just a CAR.  They both might fit the basic definition, but that is where the similarities end!  Conventional fiberglass molding and fabrication techniques (spray-up or chopper gun processing) are…

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Visit Us at WEFTEC 2012 in New Orleans – September 29th – October 3rd

Are you attending WEFTEC this year?  If so, be sure to stop by and visit us at the booths of our principals.   Teledyne-Isco Booth 4535, Hall F – See the new Isco 5800 Refrigerated Sampler, the new Isco LaserFlow, and the new accQpro Flow Meter s::can Measuring Systems Booth 6821, Hall H – See…

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The New Isco 5800 Refrigerated Sampler

Beginning in October 2012 Teledyne Isco will begin shipping their newest addition to the refrigerated sampler market, the Isco 5800 Refrigerated Sampler. This sampler will replace and expand upon the modular concept that was used with the Isco 4700 Refrigerated Sampler. All of the same features found on the 4700 are still available so there…

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Flow Measurement at an Industrial Outfall Using the Index-Velocity Rating Method

Channels with a large depth to width aspect ratio present a challenge when it comes to accurately measuring flow rates in real time.  The index velocity method provides a solution for real time flow rate reporting in situations where traditional stage-discharge ratings are not possible.  The index velocity method uses a mathematical model to calculate…

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Aquatic Sensor Workgroup Guidance Documents

The Aquatic Sensor Workgroup is a public-private partnership of water-quality monitoring agencies, industry, and   academia whose mission is to ensure that water-quality data collected by sensors are of known and documented quality.  They have published several guidance documents that benefit anyone using or preparing to use water quality monitoring sensors for surface water or groundwater monitoring applications.

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Comparing Absolute and Gauged Pressure Sensors

This technical note describes the difference between absolute and gauged pressure sensors and explains the proper use of each type of sensor in different applications for In-Situ, Inc. LevelTROLL and AquaTROLL instruments. Figure 1 provides a general illustration of the forces measured by a pressure sensor’s internal strain gauge.

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Logging Rain Gauge

Teledyne Isco offers two options for a logging rain gauge.  The Isco 676 Rain Logging System uses an Isco 674 rain gauge and a 4120 Flow logger (minus the submerged pressure transducer) be to record rain events.  The second option, Isco 677 Rain Logging System, uses the same 674 rain gauge but the more advanced…

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Japan’s Public Works Research Institute’s Findings on FRP Gate Evaluation

Japan’s Public Works Research Institute performed an evaluation of 53 fiberglass reinforced plastic hydraulic gates that have been in use for over 30 years with little maintenance.  Their evaluation included visual inspection of in-service FRP gates, tensile tests on one FRP gate in use for 35 years, and accelerated weather weathering tests on hand lay…

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Stormwater Sampling System Equipment & Example Site Video

Stormwater sampling presents a number of challenges to the municipality, researcher, consultant, or industrial user whether the sampling is required by permit or if the sampling is part of a research project.  Many times the sampling location is remote, or, even if it is close, it may not be visited on a daily basis to…

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Flume Selection Guidance

 One of the most frequent requests that we get from civil engineers during WWTP design is for flume selection guidance. While there are many complex aspects that need to be considered in flume selection and outfall channel configuration, there are a few basic considerations that can be evaluated to streamline the process. 

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Low Flow Groundwater Sampling Simplified

Low flow groundwater sampling has become the norm for collecting groundwater samples during preliminary groundwater investigations, long-term groundwater monitoring, and during remedial activities.  By using low flow purging and sampling techniques groundwater samples can be collected from a monitoring well that are representative of the groundwater within the formation adjacent to the well screen without…

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Various Techniques For Flow Measurement At Wastewater Lagoons

There is a stir in flow measurement into and out of sewer lagoons. More and more, we are asked about influent flow measurement for sewer lagoon(s); as engineers try to get a idea on influent flow characteristics; such as peak, dry vs. wet (I&I) and influent load.  Many influent lines can be a challenge; as…

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FRP / Engineered Composite Gates vs. Traditional Metal Gates

The overall benefits of a Fiberglass Reinforced Plastic (FRP) product compared to aluminum, coated aluminum and steel products, go far beyond what is immediately evident when reviewing technical data sheets and test results.  Depending on the environment and severity of product exposure, the practical requirements and suggestions for use along with comparative data collected from…

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