Leakwise ID-221 Overview

The Leakwise ID-221 detects floating oil sheens in wet
sumps, tanks, ponds, and monitoring wells

The Leakwise ID-221 Sensor, which is used with a Leakwise controller, is installed in sumps and groundwater monitoring wells to detect floating oil sheens resulting from oil leaks in underground storage tanks and pipelines.

Additional applications include:

Monitoring hydrocarbons and other organic solvents during site assessment and remediation
Detecting and monitoring floating hydrocarbons in sewer systems, waste water treatment systems, oil/water separators, cooling water trenches and canals, storm water run-offs, retention ponds and sumps, and boiler condensate tanks

The ID-221 can detect as little as 0.3 mm layer of oil on water reliably, repeatedly, and without false alarms. It can also monitor on-line changes in oil layer thickness. The controller relays can initiate both local and remote alarms, as well as control. Continuous built-in diagnostics monitor sensor operations.

The ID-221's high frequency transmitter is mounted on a patented float, which maintains its position precisely at the liquid/air interface, despite fluctuations in the liquid level. It has two field adjustable alarm points:

Low oil alarm — Detection of a predefined layer of hydrocarbons
High oil alarm — Detection of a hydrocarbon layer at a second predefined thickness

A stilling well is recommended for all ID-221 installations.

ID-221 Detects Oil Sheens in the Tidal Delaware Basin
Read about how the Delaware River Basin Commission (DRBC) and the U.S. Geological Survey (USGS) collaborated with GE Analytical Instruments on a unique test deployment of the Leakwise ID-221 oil sheen sensor in the tidal Delaware Basin which experiences high waves. Click here.

The Leakwise ID-221 detects the presence of hydrocarbons
on water in sumps, tanks, and wells with a minimum
water level of 30 cm (12.0 in).

Leakwise ID-221 Sensor Specifications

Specifications for all ID-221 sensor configurations:

Sensor Operating Range

Detection Range 0.3–25 mm (0.01–1.0 in) of hydrocarbon on water or brine
Water Level Variation Minimum: 30 cm (~12 in) from the bottom of a well/tank/sump; Maximum: 45 m (~150 ft)
Water Lateral Velocity ~20 cm/sec (~8 in/sec) when installed in a stilling well
Temperature 0–70° C (32–158° F)