US Patent # 9,291,531 B2, US 10,012,571, US 10,379,013 | Call Us Today! 1-614-504-6915 0 items - $0.00

Announcements


Don't miss out, join us next week at one or all of the following webinars to see and be seen!

Tuesday - May 19th with Brownfield Summit, Craig Cox will be presenting at 10:35 EST - Evaluating and Remediating a Complex Contaminated Groundwater Plume

https://www.brownfieldsummit.com/programme

Wednesday - May 20th with MSECA - Craig Cox will be presenting on Sanitary Sewers as the Expected Preferential Pathway in Vapor Intrusion Evaluations.

http://mseca.org/2020-05_-_Seminar.php

Thursday - May 20th with Alpha Labs, Join Craig Cox and Laurie Chilcote as they do a live sub-slab demo

Vapor Intrusion: Sampling with Confidence for Mid-Atlantic States

https://register.gotowebinar.com/register/8677107578848466445
... See MoreSee Less

We are excited to participate in the virtual seminar Vapor Intrusion: Sampling with Confidence for the Mid-Atlantic region, with Mark Mank of the Maryland Department of the Environment, Todd Creamer of Geosyntec Consultants, Christina Lewis at Langan Engineering & Environmental Services, Craig Cox at Cox-Colvin and Associates, Inc. and our own William Elcoate and Andy Rezendes. This event is free. NJ LSRP CEC Application for credits is pending. Registration is open: https://lnkd.in/djzaP9B ... See MoreSee Less

We are OPEN for business, stocked and ready to support you. Please be safe, wash your hands and practice social distancing! ... See MoreSee Less

We are OPEN for business. Just noticed are website has a hiccup. If you can't get online, please call our office for direct sales. 614-504-6915.
We apologize for the inconvenience and hope to have the site back up momentarily! #vaporpin
... See MoreSee Less

Here we grow again..in Italy! Please join Vapor Pin Enterprises, Inc., in welcoming EcoSearch to the Vapor Pin sub-distributor family. They are working in coordination with Ribble Enviro out of the UK, and will be responsible for all orders in Italy!

Benvenuto in famiglia

http://www.ecosearch.info/

#vaporpin #vaporintrusion #ribbleenviro #italy
... See MoreSee Less

Thank you Rafael Sato for demonstrating the FLX-VP at the #senac vapor intrusion course. #subslab #vaporintrusion #aesas #vaporpin #vaporsolutions

https://lnkd.in/dKiZmGK
... See MoreSee Less

Two Amazing WARriors! ... See MoreSee Less

Announcing the NEW Stick-Up Vapor Pin Drill Guide.
Ensure's your 5/8-inch (16 mm) hole is drilled properly.
Highly recommended for Mini-Vapor Pin® installation.
... See MoreSee Less

Great day for a VI EnviroWorkshop. Thanks to everyone for attending. Looking forward to hearing Roger Brewer speak this morning. ... See MoreSee Less

Main Content

Source Characterization


Using Vapor Pins® for Source Characterization
The Vapor Pin® is ideally suited for locating Volatile Organic Compound (VOC) contamination sources beneath pavement. Our experience is that most sites have sources of contamination that in addition to those associated with underground tanks and degreasing areas. Unsuspected source areas often correspond to former exterior doors that were obscured by later building expansion. Cox-Colvin has located such sources equipped with little more than some Vapor Pins®, a hammer drill, and a multi-gas meter.

Cox-Colvin’s approach to VOC source investigation consists of installing Vapor Pins® along a grid, allowing the points to equilibrate, and collecting readings with a multi-gas meter. With a team of two people, we’ve installed as many as 90 Vapor Pins® in one day, and sampled, removed the Vapor Pins®, and plugged the holes on the following day.

For source characterization, we normally install brass Vapor Pins® in the stick-up configuration on a grid spacing of 20 to 30 feet. We cover the Vapor Pins® with traffic cones and allow them to equilibrate for at least an hour. We then collect field readings with a hand-held multi-gas meter capable of measuring VOCs via Photo-Ionization Detector (PID), oxygen (O2), and Lower Explosive Limits (LEL). The PID indicates VOC sources. O2 in soil gas is normally lower than in air, but unusually low levels (<5%), especially with high LEL readings, are characteristic of methane generation (methanogenesis).
Methanogenesis occurs when non-chlorinated solvents or other organic matter degrades at too high a rate for O2 replenishment.

After collecting field readings at all of the sample points, samples are collected from locations with elevated PID readings, and submitted to a laboratory for confirmation. Samples can be collected into evacuated glass vials, Bottle Vacs, Tedlar bags, Summa canisters, sorbent tubes, and potentially other devices. Some containers do not offer low enough reporting levels for vapor intrusion sampling, but low levels are probably not needed for locating contaminant sources.At the conclusion of sampling, remove the Vapor Pins® and fill the holes with hydraulic cement or caulk.

Urethane and polyurethane caulks are recommended by radon mitigation guidance for filling holes and cracks, but they contain VOCs that could interfere with subsequent sampling. Hydraulic cement does not contain VOCs, but it sets up quickly, making it potentially difficult to fill borings to total depth.  After removing the silicone sleeve and other plastic parts from the Vapor Pins®, decontaminated them for reuse. Cox-Colvin has a number of Vapor Pins® that they have used an average of seven or eight times with no breakage or damage.

DOWNLOAD PDF