Audit and Inspection Support for the National Institute of Environmental Health Sciences (NIEHS).

For more than 35 years – CSS’s longest running contract – we have provided quality assessment support to the National Toxicology Program (NTP) for studies carried out on their behalf by contract laboratories regarding toxicological effects of chemicals in the environment.   

CSS toxicologists verify that the required and appropriate experimental procedures were followed in every detail, that observations and results were accurately and completely recorded, that the archival data and specimens were properly organized, catalogued, and maintained to facilitate access, and that the conduct of each study was described accurately, and the data presented correctly in NTP Technical Reports.  Our audit reports verify whether the information contained in the NTP Technical Report is supported by the original study records submitted to the NTP Archives. 

Among the types of studies audited are pre-chronic toxicity, chronic toxicity/carcinogenicity, Reproductive Assessment by Continuous Breeding (RACB), Modified One Generation (MOG), developmental toxicity (including teratological endpoints), behavioral and neurotoxicity, immunotoxicity, and toxicokinetic.  Our audit tasks have recently been expanded to include draft manuscripts of research studies being prepared for publication.  

Example studies include: 

Bisphenol A (BPA) used to manufacture polycarbonate plastics. This type of plastic was used to make some types of beverage containers, compact disks, plastic dinnerware, impact-resistant safety equipment, automobile parts, and toys; 

Radiofrequency radiation emitted by cell phones;  

Polyfluoroalkyl substances (PFAS) used in an extensive number of consumer products (Teflon). These ‘forever chemicals’ are extremely resistant to degradation in the environment; 

Glyphosate, the most heavily used herbicide world-wide (the active ingredient in Roundup). 

Additional Projects

Evaluation of Pesticide Safety

CSS supports the EPA Office of Pesticide Programs in evaluating the safety and potential health and environmental risks resulting from the use of pesticides and ensures that the data utilized for EPA’s regulatory decisions are scientifically sound.

NUCO Oil Pit removal

CSS supported EPA as the field team leader on a removal assessment at an abandoned oil pit site in Oklahoma.

Superfund Program Removal Action Support

CSS’ On-Site Analytical Support Accelerates Site Cleanup and Restoration.

Satellite Data Applications

Helping create a more environmentally sustainable, weather-ready, and secure nation through application of earth observation data  

Facilities Operations & Maintenance

We understand your facility support needs and deliver customized solutions.

Safety, Health, & Environmental

We provide our clients with tools to protect their workforce, the public, and the environment.

Human Health Risk Assessment

We help advance the understanding of chemical effects on people and the environment.

IT Services

Our IT solutions meet clients’ evolving needs.

Earth & Space Science Support & Operations

We deliver scientific support to advance our clients’ research goals.

Emergency Preparedness & Response

We help our clients prepare for and protect the health and environment of communities after disasters and hazmat releases.

Get in touch

Contact us to learn more about our projects, capabilities, solutions, and service offerings.