ETS assists pesticide registrants by conducting ground water and surface water quality impact studies and risk assessments. These field and modeling studies can support pesticide registration at the federal and state levels, as well as internal corporate decision making.
All field work performed under FIFRA is done in accordance with GLP requirements (40 CFR 160). Some work is also done consistent with RCRA and OSHA requirements, e.g., well installation and soil sampling at potentially contaminated sites. Computer simulation modeling can be done pursuant to GLP on request.
Ground Water
- Advice for strategic planning to aid product registration decisions under FQPA, i.e., integrating considerations of hydrologic and hydrogeologic vulnerability, cropping patterns, environmental chemistry, and mitigation measures.
- Water quality monitoring (wells & lysimeters) and small-scale prospective ground water studies.
- Computer simulation modeling and calibration using PRZM, PELMO, SCI-GROW, and Attenuation Factor.
- Ground water contamination predictions using less resource-intensive semiquantitative approaches.
- Development of State Management Plans for ground water contamination by pesticides.
- Determination of aquifer coefficients, i.e., pumping tests.
- Runoff and leaching modeling using PRZM, SWAT, GLEAMS, and RZWQM.
- Runoff predictions using less resource-intensive semiquantitative approaches.
- In-stream water quality modeling using EXAMS.
- Surface water quality monitoring studies.
Our extensive experience with individual site assessments, coupled with a national perspective, brings a holistic approach to developing mitigation measures for potential water quality problems.
Expert Testimony and Representation
ETS staff have extensive experience providing expert testimony at the federal, state, and local levels; in trials; before regulatory agencies; and in public meetings. Dr. Cohen has testified before U.S. Senate and House committees on pesticides in ground water.
Individual
ETS staff are comfortable working in both regulatory and scientific arenas. Dr. Stuart Cohen, CGWP, worked for EPA for 11 years and is the former head of the ground water team in the Office of Pesticide Programs. Three of the staff of seven possess graduate degrees, and four are certified or registered in their respective fields. The staff has degrees in hydrogeology, physical organic chemistry, geology, agricultural engineering, water resources, environmental biology, and turf agronomy. The staff has completed short courses in a very wide variety of environmental courses ranging from habitat management to chemical carcinogenesis.
Corporate
The company has focused on pesticide assessments, but works with hazardous site assessments, leaking underground storage tanks, and controlled release fertilizers has provided cross training which fosters a more holistic approach to problem solving. Similarly, large-scale projects such as the development of Delaware's State Management Plan lend perspective to our small-scale studies. Conversely, development of Best Management Practices for golf courses and shooting ranges lends a local, site-specific, perspective to national assessments.
Following are abstracts of our publications on pesticide migration to
surface water and ground water.
Ground Water Monitoring And Computer Simulation
Modeling Of Triasulfuron -- An Integrated Approach For
Predicting Leaching Potential
Offsite Transport Of Pesticides In Water:
Mathematical Models Of Pesticide
Leaching And Runoff
Water Quality Impacts By Golf Courses
The Special Case of Pesticides: Science and Regulation
Environmental Chemistry of Ethylene Dibromide in Soil and Ground Water (Table of Contents)
Golf Courses
Firing Ranges
Agricultural Pesticides
Order Materials
Environmental Glossary
phone: 301-933-4700 fax: 301-933-4701 email: info@environmentalandturf.com