Environmental Monitoring Equipment & Supplies • Sales, Rental & Service by Enviro-Equipment — Charlotte, North Carolina USA

Optical vs. Electrochemical Dissolved Oxygen Meters

Optical vs Electrochemical Dissolved Oxygen Meters

When testing for dissolved oxygen in the field, an important thing to consider is the type of dissolved oxygen (DO) meter to use. There are several different types of DO sensing technologies, most of which fall under the category of optical or electrochemical sensors. All of these technologies have advantages and disadvantages which must be considered including maintenance, the measurement process, and initial cost.

What I Missed in College and Learned at Enviro Equipment, Inc.

Job Vs College

I began working for Enviro Equipment, Inc. (EEI) during September of 2011, as an undergraduate earth sciences major at the UNC Charlotte. I discovered the Environmental Specialist Assistant position on a job board through my university and hoped that the job could provide insight into the environmental consulting industry.

Problems with the SCDHEC PROGRAMMATIC QAPP 2013 Revision For Doing Environmental Work in South Carolina


What is a QAPP? When I first heard the acronym a few years ago it sounded like something you may step in while mowing your yard if you have a dog, but it is not!

The South Carolina Department of Health and Environment Control (SCDHEC) revised their Quality Assurance Project Plan (QAPP) back in April of 2013 (first written in 2011) in which SCDHEC defines the QAPP as:

How Often Should I Calibrate My Gas Monitor?

Calibrating Gas Monitors

Tips on Calibrating Gas Monitors

When a client needs to purchase or rent a gas monitor, I’m routinely asked either “How do I calibrate a gas meter?” or “How often should I calibrate (or recalibrate) the monitor?”

What Can Go Wrong When Bidding a Remediation System: Dangers of Copy & Paste

Corrective Action Plan

Recently, a good customer of ours sent us a bid request on a project they inherited from a consultant who worked for the same client.  The Corrective Action Plan (CAP) for the project, which specified the equipment to be used, had already been approved by the state.  For reasons that may become apparent later in this post,  their client decided to change horses in midstream and have our customer handle the remediation system build and install.

Upon reviewing the specified equipment for the project we noticed a few interesting design features of the system:

Problems With Free-Product Recovery

Free-Product Recovery

During my 33 years in the environmental field, I have been involved in a lot of sites with free product.  In the 1980’s light non-aqueous phase liquids (LNAPL) such as gasoline were removed by the following methods:

How To Effectively Handle A Noise Nuisance

Environmental Noise Nuisances

Occasionally we field calls from concerned citizens who are dealing with a noise nuisance. These nuisances involve irritating sounds and/or vibrations which are affecting their health via undue stress and lack of quality sleep. Typical noise nuisances are created by but not limited to:

* Parties, * Loud music, * Shouting, * Barking dogs, * Construction

Carbon Injection Technology Shows Solid Potential to Remediate State Petroleum Sites

Leaking UST

The following article was written by Melora Grattan and published in the recent addition of the Florida Specifier newspaper regarding the CleanInject(TM) technology:

Using activated carbon to remove contaminants from the air and liq­uids is nothing new. However, turning the process around and injecting an activated carbon-based slurry into the ground for remediation purposes is not ex­actly commonplace.

CleanInject Injection Process Successful In South Carolina

Several months ago Enviro-Equipment, Inc. (EEI) announced that they had been selected to build the patent-pending CleanInject carbon based injectates technology in mobile trailers and that the CleanInject system had been used on a test injection site in South Carolina later in the year.

Carolina AEG Meet To Discuss North Carolina DSCA Compliance Program

AEG Earth Science Kits

The Association of Engineering and Environmental Geologist’s (AEG) Carolina Section met on October 25, 2012 at Natty Greene’s Pub & Brewing Company in Greensboro, North Carolina to discuss regulatory compliance pertaining to operating dry-cleaning facilities in North Carolina, the impact of non-compliance to the environment, and the State and Federal regulations that the DSCA Compliance Program staff enforces in North Carolina. The information was presented by Eric Swope, Compliance Supervisor for the North Carolina Dry Cleaning Solvent Cleanup Act (DSCA) Compliance Program. Mr.