Technician lowering an interface probe reel into a groundwater monitoring well

Oil/Water Interface Meters: How to Detect LNAPL and DNAPL in Monitoring Wells

An interface probe measures the depth and thickness of a floating or sinking liquid layer in a monitoring well by combining infrared refraction (to detect any hydrocarbon) with conductivity sensing...

4 September 2026 · ERE Inc.

Technician lowering a Waterra surge block into a groundwater monitoring well casing

3 September 2026

Well Development for Monitoring Wells: How to Surge and Purge

Par ERE Inc.

Well development clears silt and mud cake from a new monitoring well's screen before it can produce a representative sample. How surging with a Waterra...

Operator lowering a Sludge Gun optical probe into an open wastewater clarifier tank

3 September 2026

Sludge Blanket Monitoring: Sludge Judge vs. Sludge Gun Compared

Par ERE Inc.

Compare the Sludge Judge core sampler and Sludge Gun optical detector for measuring sludge blanket depth in clarifiers and lagoons — and which one fits...

Gloved hand lowering a paste-coated gauging stick into a fuel storage tank

2 September 2026

Water-Finding Paste: How to Detect Water in Fuel Storage Tanks

Par ERE Inc.

A quarter-sized dab of water-finding paste on a gauging stick tells you in seconds whether water has settled at the bottom of a fuel storage...

Fluorescent tracer dye container beside an open manhole with dyed flow visible during a sewer dye test

1 September 2026

Sewer Dye Testing: How to Detect Illicit Connections and I&I Sources

Par ERE Inc.

How to run a sewer dye test to detect illicit sanitary/storm cross-connections, I&I sources, and septic leaks -- Bright Dyes tablet and liquid formats compared...

Peristaltic pump and flow-through cell set up for low-flow groundwater sampling at a monitoring well

1 September 2026

Low-Flow Groundwater Sampling: Peristaltic Pump Selection Guide for Canada

Par ERE Inc.

Low-flow purging draws water at 100–500 mL/min from mid-screen depth for a cleaner, more representative sample. Compare 4 peristaltic pumps ERE stocks and learn the...

Gloved hand inserting an air sampling cassette into a personal sampling pump indoors

31 August 2026

Air Sampling Cassette Types Compared: Air-O-Cell vs. Allergenco-D vs. Micro5 vs. PCM

Par ERE Inc.

Air-O-Cell, Allergenco-D, Micro5, or a PCM filter cassette: which one do you actually need? A flow-rate and contaminant-type comparison for environmental and industrial hygiene sampling.

RKI Beacon fixed gas detection controller wall-mounted in an industrial plant

26 August 2026

Fixed Gas Detectors: A Buyer's Guide for Canada

Par ERE Inc.

A fixed gas detection system is a permanently mounted detector wired to a controller that continuously watches one or more locations for combustible, toxic, or...