Science & Technology
-
Hydrocarbon Spill Screening Model (HSSM)
The model is intended to address the problem of LNAPL flow and transport from the ground surface to a water table aquifer.
-
Wellhead Protection Area (WHPA) Model
WHPA is a semi-analytical groundwater flow simulation program used for delineating capture zones in a wellhead protection area.
-
Vadose Zone Leaching (VLEACH)
VLEACH is a one-dimensional, finite difference model for making preliminary assessments of the effects on groundwater from the leaching of volatile, sorbed contaminants through the vadose zone.
-
Remediation Evaluation Model for Chlorinated Solvents (REMChlor)
This model simulates the transient effects of groundwater source and plume remediation. This model also calculates cancer risks posed by carcinogenic species.
-
Pesticide Analytical (PESTAN) Model
The PESTAN (Pesticide Analytical) model is a computer code for estimating the transport of
organic solutes through soil to groundwater. -
National Aquatic Resource Surveys in the Great Lakes
This page highlights national aquatic resource surveys conducted in the Great Lakes region by the Great Lakes Toxicology and Ecology Division.
-
Visualizing Ecosystem Land Management Assessments (VELMA) Model
VELMA predicts the effectiveness of alternative green infrastructure scenarios for protecting water quality, and also estimates potential ecosystem service co-benefits and tradeoffs.
-
Cyanobacterial Harmful Algal Blooms Forecasting Research
This is a beta test of EPA's experimental forecasting model for cyanobacterial harmful algal blooms.
-
Refrigerated Trailers and Transport Refrigeration Units (TRUs)
EPA’s new TRU Emissions Calculator and existing guidance from the DERA program.
-
Overview of Air Pollution from Transportation
For an overview of sources of transportation air pollution and what vehicles, engines and pollutants are regulated by EPA.
-
Working Paper: Muddying the Water? An Analysis of Non-Constant Baselines in Stated Preference Surveys
This is a working paper titled "Muddying the Water? An Analysis of Non-Constant Baselines in Stated Preference Surveys"
-
Working Paper: The Impacts of Underground Petroleum Releases on a Homeowner's Decision to Sell: A Difference-in-Differences Approach
This is a working paper titled "Do Housing Values Respond to Underground Storage Tank Releases? Evidence from High-Profile Cases across the United States"
-
Early Childhood Lead Exposure and the Persistence of Educational Consequences into Adolescence
This is a working paper titled "Early Childhood Lead Exposure and the Persistence of Educational Consequences into Adolescence"
-
Evaluating Economy-wide Effects of Power Sector Regulations Using the SAGE Model
This is a working paper titled "Evaluating Economy-wide Effects of Power Sector Regulations Using the SAGE Model"
-
Hot Spots, Cold Feet, and Warm Glow: Identifying Spatial Heterogeneity in Willingness to Pay
This is a working paper titled "Hot Spots, Cold Feet, and Warm Glow: Identifying Spatial Heterogeneity in Willingness to Pay"
-
Reporting Data using ECMPS
This page is the landing page for ECMPS.
-
Sediment Sampling
Field Branches Quality System and Technical Procedures
-
Groundwater Level and Well Depth Measurement
Field branches quality systems and technical prodedures
-
Algal Field Sampling
This SOP should be followed by LSASD Field Services Branch staff when collecting water samples for algal analyses performed by the LSASD Algal Laboratory, including chlorophyll a, algal growth potential tests (AGPT), and algal toxins.
-
Potable Water Supply Sampling
Field Branches Quality System and Technical Procedures