Science & Technology
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Thirstin’s Ground Water Movement Activity
An in class lesson demonstrating groundwater movement.
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AgSTAR Webinar: RNG Projects in the Agricultural Sector
Presentations from the webinar
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EPA Region 4 Data Validation Standard Operating Procedures for Contract Laboratory Program Routine Analytical Services
This page contains basic information and links for standard operating procedures for contrat laboratory program routine analytical services for both organic and inorganic compounds
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Data Validation Standard Operating Procedures for Organic Analysis
Describes standard operating procedures for organic analysis data validation.
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test of accordions
test of search
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Secondary Drinking Water Standards: Guidance for Nuisance Chemicals
Learn about Secondary Drinking Water Regulations for nuisance chemicals contained in some drinking water. They are established only as guidelines to assist public water systems in managing their drinking water for aesthetic considerations.
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Certification of Laboratories that Analyze Drinking Water Samples to Ensure Compliance with Regulations
Provides information to advance the protection of drinking water (one of EPA’s strategic goals) by ensuring drinking water compliance samples are analyzed by certified or accredited laboratories.
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Economic Benefits of Green Infrastructure
Green infrastructure can can improve community resiliency and provide economic stability by adding green local jobs, reducing infrastructure costs, and decreasing property damage from flooding.
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Types of Green Infrastructure
An introduction to the different types of green infrastructure.
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EPA Actions on Tribal Water Quality Standards and Contacts
List of EPA approvals for tribes to administer a water quality standards (WQS) program, and EPA’s approvals of those tribes’ WQS.
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Chemical Assessment Clustering Engine (ChemACE) User Tutorial
Provides instructions on how to setup and use ChemACE, as well a description of the approach used by ChemACE to cluster chemicals and the fragments used in developing clusters.
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PSC v1.05 Manual and User Guide
Additional information on surface water, porewater and sediment modeling, modeling inputs, and approaches used to develop PSC v1.05.
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Use and Exposure Information Project (UEIP)
provides guidance for industry-specific workplace release and exposure estimates
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Predictive Models and Tools for Screening Chemicals under TSCA: Consumer Exposure Models 1.5
CEM contains a combination of models and default parameters which are used to estimate inhalation, dermal, and oral exposures to consumer products and articles for a wide variety of product and article use categories.
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Government Organization Websites Related to the Use of Tire Crumb on Fields and Playgrounds
State and local information related to tire crumb.
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Research on Nanomaterials
EPA is developing scientific methods to study and evaluate the unique properties of nanomaterials, how they behave during manufacturing, product use, and end of life disposal.
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Research Supporting the Endocrine Disruptor Screening Program
EPA researchers are working with EDSP to develop high-throughput, rapid methods to prioritize chemicals for Tier 1 testing.
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Research on Endocrine Disruptors
EPA researchers are developing innovative approaches, tools, models and data to improve the understanding of potential risks to human health and wildlife from chemicals that could disrupt the endocrine system.
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Tools Related to the National Aquatic Resource Surveys
Access to information on tools and data that are related to the National Aquatic Resource Surveys (NARS).
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Cheminformatics Modules Manual
User guide for EPA's Cheminformatics Analysis Modules.