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Scroll down this page to see the latest happening at Sitelab Corporation, from new and improved products to unique customer applications.

Testing Drinking Water From Jet Fuel Spill, Pearl Harbor, Hawaii
2022 to 2023: The U.S. military and their contractors are using Sitelab UVF-TRILOGY analyzers, model 7200-004-FNGP, to monitor hydrocarbons in drinking water samples.  In late November 2021, a large fuel leak occured at the Red Hill tank farm and contaminated the water supply serving the base.  Thousands of homes were effected. 

The U.S. Navy is working closely with the Hawaii Department of Health, U.S. Environmental Protection Agency and the U.S. Army to restore safe drinking water to Joint Base Pearl Harbor-Hickam housing communities through sampling and flushing, and the recovery of the Red Hill Well. 

“This is really exciting technology, with a complete test in 15 minutes,” said Lt. Cmdr. Richard Forney, Naval Facilities Engineering Systems Command Engineering Working Group Rapid Response Team officer in charge. “The Navy has made an investment in this technology to provide residents with the results as fast as possible.  Rather than losing time to shipping, we’re spending that reclaimed time on fixing any problem we may find, and getting families home.” 

The Sitelab UVF-TRILOGY Benchtop Analyzer uses ultraviolet fluorescent technology to offer accurate sample results.  “The TPH analyzer zeroes in on hydrocarbons, which allows a faster result to be delivered to the resident to validate that the Navy is providing clean, safe water,” said Forney.

To read more about this story and see additional photos available, click the news articles listed here published on the DVIDSHUB.NET website.

Download UVF-Trilogy manual with DRINKING WATER SOPs
to see test procedures developed by Sitelab for this application.

Visit the Navy's JBPHH WATER UPDATES and the State of Hawaii, Dept. of Health's RED HILL websites for the latest information concerning this spill. 
 "Rapid Response Team Utilizes On-Island Analyzer for Faster Lab Results" SEE LINK
"Real Time Monitoring at Red Hill Well" SEE LINK

Source: U.S. Dept of Defense Visual Information Distribution Service.  DVIDS media is considered public domain and is free to use unless otherwise specified.  Learn more here:



Forensic Analysis using UVF and USGS Laboratory Results Testing PAHs in Coal Tar Pavement Sealants 

Winter 2023: Environmental scientists use a variety of forensic techniques to identify the source of hydrocarbons using laboratory data.  This study compares Sitelab’s UVF-Trilogy data and laboratory GC/MS data using double ratio plots testing pavement sealants for Polycyclic Aromatic Hydrocarbons (PAHs).  Ratios were then applied using data in three studies conducted by the United States Geological Survey (USGS), concerning the use of coal tar sealants and how they impact the environment. 


Click here for details...
   Sealcoat Certification Program Completed for DOEE, Washington, DC 
Summer 2022: Sitelab Corporation completed a U.S. EPA funded grant with Chesapeake Bay Trust for DOEE in Washington, DC to create a certification program testing the PAH content in pavement sealants.

Go to Sitelab's PAHS PARKING LOT SEALCOATS web page for details.

This web page features a list of qualified products tested to date peformed for DOEE, City of Austin, TX and Mecklenburg County, NC.  Current bans in the United States, the QA Protocol and other downloads are available.  Chain of custody forms and instructions are also provided for sealcoat manufacturers who wish to submit samples to Sitelab for analysis.  

Click here...

  Water Quality Study using UVF to Detect Hydrocarbons and Natural Organics
Merrimack River, Massachusetts: This study was performed to help support a customer looking to distinguish if surface water contains oil sheens or bio sheens using their UVF-Trilogy analyzer.  Bio sheens can look like oil sheens but are naturally occurring and are not caused by petroleum spills.  Water high in organic content from algae, decayed plant matter or from bacteria in stormwater and combined sewer overflows (CSOs), can also be detected without the use of solvent extraction.

To mimic the types of conditions they have, a variety of samples were analyzed locally by Sitelab using it’s two UVF instruments.  The Merrimack River is often polluted by discharges of sewage and features a large number of marinas and commercial fishing boats where spills of gasoline, diesel and oil could occur.  No oil or sheens were found, but the river did exhibit a drop in water soluable organics from Haverhill to the Atlantic Ocean, likely due to a CSO event from heavy rainfall the week before.    

The Merrimack River Watershed Council is a local non-profit which monitors the river and is a good resource for it's condition.  Visit: MERRIMACK.ORG
  New Handheld UVF-500D Hydrocarbon Analyzer
Back by popular demand: Sitelab's UVF-500D is a rugged, battery operated, low cost handheld instrument which features two optical channels.  It's made for Sitelab by Turner Designs, Inc. and is a direct replacement for the older TD-500D model.

Use to monitor produced water, discharge water, bildge water and waste water contaminated by crude oil and heavy fuels oils.  The UVF-500D can also test oil in soils and sediments.  Samples only take a few minutes to analyze.  A full line of test supplies and accessories are available.  See operating manual for details.

This instrument is sold online.  See our UVF-500D webpage for details.
Click here...
  U.S. EPA Grant Award with Chesapeake Bay Trust
2019-2022: Sitelab Corporation is working with the Chesapeake Bay Trust, DOEE and the U.S. EPA in Washington, DC to develop and create a certification program testing the PAH content in parking lot sealcoats.  Materials used to manufacture sealcoats vary; most in commercial use are made with coal tar, ethylene cracked residue or are asphalt-based.  Manufacturers who participate will know if their product meets a 1,000 ppm (Gold) or 10,000 ppm (Silver) regulatory limit. 

An ongoing list of certified sealcoat products will inform the public of the general concentration of PAHs in each manufacturer's product.  This information will be used for communities that want to ban sealcoats made with high concentrations of PAHs.  Stay tuned to this webpage as more information becomes available.

This project has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement CB96341401 to the Chesapeake Bay Trust. The contents of this document do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does the EPA endorse trade names or recommend the use of commercial products mentioned in this document.

Click for details...
  NC DEQ Underground Storage Tank Trust Fund Program
Forward thinking:  North Carolina Dept. of Environmental Quality added UVF to its UST trust fund reimburesment program.  Contractors and consultants working on these sites can use Sitelab's UVF-TRILOGY as an alternative to laboratory GC methods for testing TPH.  The State's price for UVF is $45/sample, compared to $65/sample price for the EPA 8015 test.  This saves time and money, while improving efforts to clean up petroleum contaminated sites.  See links below for details:




Go to DEQ website


  UVF-TRILOGY Analyzer Introduced
Summer 2018:  Sitelab's new hydrocarbon analyzer, the UVF-TRILOGY, has replaced the UVF-3100 models.  This instrument can do the same tests, but uses new deep UV LEDs to detect hydrocarbons instead of a UV lamp. 

Trilogy features a touch screen interface, can store up to 18 calibrations, has higher linear range and can perform hydrocarbon fingerprinting faster than before using different UV modules availble.  Portable battery charger is available too for use in the field or in remote locations.

See models available
  Concerned About Sealcoats used on Parking Lots and Driveways?
There is growing concern - and regulations in the works - over the use of sealcoating products due to their high PAH content.  In the United States and elsewhere, most sealcoats are made from coal tar which can be toxic to aquatic life and threaten public water supplies from rain and runoff.  Sitelab can be used to quickly check the concentrations of polycyclic aromatic hydrocarbons and determine if it's made from coal tar or alternative petroleum based black top sealants. 

Residents in the Town of Pomfret, Connecticut, submitted a sample for analysis from a street which had been sealcoated by coal tar.  The sealcoat was found on dog's paws, children's basketballs, shoes, car tires and lawns.  The neighborhood is concerned too about potential PAHs from dust getting into their homes, drinking water wells and scrapings from snow plows. 
»SEE VIDEO FROM FOX61 NEWS which featured this story.

For more information about this topic, visit:

This publication is also a good resource:

See 2017 PERFORMANCE STUDY comparing coal tar and GUARDTOP, LLC asphalt-based sealcoats

 Got samples?  Send them to Sitelab Corporation for certified PAH analysis.

   Applications in Europe Testing Asphalt for PAH content and Benzo[a]Pyrene
New regulations by the European Union require laboratory testing for polycylic aromatic hydrocarbons (PAHs) when reclaiming or disposing old asphalt from road planings and pavement.   
Sitelab’s portable analyzers have similar sensitivity to these types of compounds. The equipment is easy to operate and samples can be tested in the field in less than five minutes.  Samples are extracted in solvent using disposable test kits and then measured on the instrument which is calibrated using Sitelab’s PAH calibration kit.  Results will directly correlate to certified laboratories using GC/MS methods.

Click for details
  New Jersey Approves UVF Training Course for LSRP Credit
In February 2016, the New Jersey Site Remediation Professional Licensing Board approved Sitelab Corporation's hands-on training course entitled "Using UVF Technology Onsite to Test Petroleum Hydrocarbons."  SRPLB CEC No. 2016-011.  For class date and location, visit:
If you are a Licensed Site Remediation Professional (LSRP) working on sites in New Jersey and need credits to renew your license, this class has been approved for 4 continuing education credits.
  The course is similar to Sitelab's LSP and LEP courses in Massachusetts and Connecticut.  Participants learn how UVF technology works, it's applications and limitations, as well as hands-on experience testing soil, water and LNAPL samples. 

  Presentations provided at 21st IPEC Conference, Houston, TX
  Presentations provided by Sitelab Corporation at the International Petroleum Environmental Conference:
  October 14-16, 2014: Houston, TX   »IPEC CONFERENCE WEBSITE

Download presentation
Total Petroleum Hydrocarbons or "TPH" is defined and detected differrently depending on where you're from.  What is GRO and DRO?  What is VPH and EPH?  How are they similar?  How are they different?
This presentation describes how different laboratory methods exist from state to state and country to country.  In most cases, laboratories are using the same methods.  Yet even when labs perform the same analysis on the same samples, results can vary quite a bit.  The use of field screening methods and how they correlate to these different methods is important to understand.
     Click here Learn how ultraviolet fluorescence and laser induced fluorescence tools are used together to better dilinate the impact and volume of oil below the ground. 
This presentation highlights several projects where an environmental consultant uses Sitelab's UVF data to calibrate LIF data using UVOST and TarGOST from Dakota Technolgies, Inc.  This new technique was developed by Subsurface Environmental Solutions, LLC, who specialize in NAPL remediaton.

  Sitelab Corporation presents at 20th IPEC Conference, San Antonio, TX
  November 12-14, 2013: Hyatt Regency Hotel, San Antonio, Texas

Title: "Forensic Fingerprinting Petroleum Contaminants using UVF Field Screening Technology," presented by Steve Greason, Sitelab Corporation.

Do you work in the oil and gas industry?  The International Petroleum Environmental Conference (IPEC) focuses on environmental issues and solutions in exploration, production, refining and distribution of petroleum.  Presented by the University of Tulsa, this year marks IPEC's 20th anniversary and offers 3 days of technical sessions.  Topics include the latest developments in fracking, produced water, LNAPL, regulatory issues, remediation of hydrocarbon spills and many more!
  Discrimination Between Oil Based Drilling Mud and Crude Oil
  Need to monitor drill cuttings in new wells to see if crude oil, drilling muds or both are present?  Drilling for oil using oil based mud (OBM) facilitates the drilling process but is often confusing for the mudlogging geologist.  An evaluation study was performed testing 8 samples for a customer in California.

"The equipment shows a clear distinction between the OBM and formation oil when extracted from their liquid state."  Horizon Well Logging, Inc.

The types and quantities of aromatic h
ydrocarbons that exist in crude oil fluoresce very differently and at much higher intensity compared to oil-based drilling muds and their additives.   If drill cuttings require TPH analysis, either instrument is suitable.  But when used together, Sitelab's technology can detect how much and what type of hydrocarbon is present.  It can even estimate the API gravity in the oil or drill cuttings.

See TPH Drilling Mud Applications

Click image for details...

  PAH analysis and forensic mapping in sediments on Grand Calumet River

Download 4-page PDF document...


"We evaluated more than one technology to implement the on-site PAH screening, but ultimately felt that Sitelab offered the greatest understanding of our data needs and more flexibility and interpretive power in your data output."  Customer/Project Manger  »SEE FEATURE STORY



     Sitelab Corporation was hired by an environmental contractor to analyze 100 sediment samples collected from a post-dredge area covering a 1 mile stretch of river in Hammond, Indiana.  The data was used to determine which of the 25 sample locations would require further assessment.

    In 2012, J.F. Brennan will be installing a cap on the river bottom, which consists of a 12 inch layer of a sand and organoclay mixture.  The cap is designed to prevent future exposure and pathways of the impacted sediments left behin

    Sitelab's PAH fingerprinting data, combined by sample location coordinates recorded by GPS, were used to map the sediment contamination.  Results revealed several "hot spots" and where fresher versus older crude oil exists in the river

  Field method for testing oil sheens on surface water using sheen nets

A pipeline spill in Michigan contaminated a river with crude oil.  Almost one year later, oil sheens continued to be spotted on the river's surface, as do "bio sheens," which look like oil sheens but only contain biological, natural organic matter from leaves and other decomposing vegetation.

The oil company's contractor collected samples from both contaminated and non-contamianted areas using sheen nets.  The nets were extracted in solvent and analyzed by Sitelab's laboratory.  The oil sheen nets fluoresced similar to each other, while the bio sheen nets came up clean and non-detect.  Knowing the difference between the two will help improve monitoring and cleanup. 


See test results

  U.S. Gulf Coast Oil Spill, 1-Year Later:

In April 2011, Sitelab received a group of samples collected from Perdidio Key in Pensacola, Florida.  The samples included beach sand and several fragments of tar balls washed ashore resulting from the BP oil spill from one year before.  Beach samples were collected from the surface down to two feet deep, at both high tide and low tide in the same area where clean up crews made their daily visit

The samples were analyzed by Sitelab using our UVF-3100D and TD-500D instruments.  Results show the tar balls did not appear to leave any residual oil in the sand.  Despite the distance and time spent at sea, these tar balls fluoresced very similar to other tar balls tested by Sitelab.  This report highlights results from different sites along the Gulf of Mexico.



See test results

  Sitelab Evaluated by BP's Deepwater Horizon Response Team

August 2010: Summary of the final evaluation report for Sitelab's portable petroleum contamination test kits states:

Key Conclusions: Established technology for detecting oil in both water and soil applications.  We have communicated these results to the Deepwater Horizon MC252 Incident Command Posts with a request that they give consideration to the use of your technology."



TPH in Water Performance Evaluation Studies

Sitelab evaluated it's UVF-3100 analyzer by testing blind, NELAC certified water samples provided by Environmental Resource Associates (Arvada, CO).  ERA is a leading manufacturer of quality control and proficiency testing standards sold to environmental laboratories around the world.  The samples contained spiked concentrations of GRO, DRO and TPH in water.  Sitelab correlated well to the other laboratories who participated.


See performance study 

  Florida Department of Environmental Protection Acceptance Letter

The State DEP's Bureau of Petroleum Storage Systems, located in Tallahassee, Florida, has accepted Sitelab's UVF-3100 as a field screening device for the measurement of petroleum hydrocarbon concentrations in soil and groundwater as a result of Sitelab's performance during the U.S. EPA TPH in Soil evaluation study.

"The Bureau, in accordance with it's Guidelines for Assessment and Source Removal of Petroleum Contaminated Soil, hereby recognizes the EPA verification test of the UVF-3100 as an alternative validation report."


  Environmental Engineering Award to EPA SITE Program Contractor

As part of the U.S. EPA SITE Program, under the direction of Dr. Kumar Topudurti of Tetra Tech EM Inc. in Chicago, Illinois.  Tetra Tech performed the first-ever comprehensive evaluation of field measurement devices for TPH measurement in soil.  To make sure that the evaluation produced practical and useful information for environmental scientists and engineers, Tetra Tech developed and implemented a comprehensive experimental design that was scientifically sound and statistically based.



U.S. EPA publishes TPH in Soil Evaluation Report

In 2001, the U.S. Environmental Protection Agency completed a performance study called "Field Measurement Technologies for Total Petroleum Hydrocarbons in Soil" by evaluating Sitelab and six other manufacturers through the Superfund Innovative Technology Evaluation (SITE) program.  

Stakeholders and project participants included EPA Regions, Department of Defense, American Petroleum Institute, British Petroleum, Chevron, Equilon (Shell and Texaco) and ExxonMobil.  The project took two years to complete and cost nearly $1 million dollars.  Tetra Tech, Inc. managed the project.




Approved 4-hour Credit Training Course Available

Are you a Licensed Site Professional (LSP) performing work in Massachusetts?  Or a Licensed Environmental Professional (LEP) in Connecticut?  Need credits to renew your license?  Sitelab has been State approved to provide a 4-hour continuing education credited course called "Field Screening Petroleum Hydrocarbons Using Ultraviolet Fluorescence Technology."  Participants learn how UVF technology works, it's applications and limitations, as well as hands-on experience testing samples. 


Contact Sitelab for upcoming classes or to schedule an appointment.



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