This document describes how to apply to the Texas Commission on Environmental Quality's Analytical Method Modification Program, in order to obtain approval to modify analytical reference methods used to generate data for regulatory purposes.

Guide describing recommended process control tests which should be performed to effectively operate domestic wastewater treatment facilities.

This document provides guidance on identifying and certifying the presence of recharge features and discusses best management practices to protect aquifers.

This guidance document provides an overview of Remedy Standards A and B.

Document explaining the Texas Commission on Environmental Quality's regulatory assessment fees on utilities costs.

This publication provides information and guidelines on backflow protection for water-based fire protection systems.

This guidance document summarizes the primary differences between the Risk Reduction Rule and the Texas Risk Reduction Plan (TRRP) Rule.

This is a pamphlet published by the Texas Parks and Wildlife Department on Hummingbirds in the Trans-Pecos region.

A booklet describing the forty three native waterfowl (ducks, geese, and swans) of Texas with information on habitat needs in Texas and wintering and breeding grounds, calls, and interesting behaviors.

This best practices guide describes how designing a building to include daylighting can save energy and utility costs (especially energy costs for electric lighting) while improving productivity and morale among a building's occupants. Several examples are given of the effective use of daylighting in new laboratory buildings. The publication is one of an ongoing series for''Laboratories for the 21st Century,'' a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy Federal Energy Management Program. It is intended for all those who plan, design, and construct public and private-sector laboratory buildings.

This publication is one of a series of best practices guides for ''Laboratories for the 21st Century,'' a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy Federal Energy Management Program. It is intended for all those who plan, design, and construct public and private-sector laboratory buildings. Laboratory buildings typically consume 5 to 10 times more energy for heating, cooling, and fans than most office buildings, because they need to be ventilated so well, primarily for safety reasons. This publication describes how using air-to-air energy recovery methods-such as enthalpy (desiccant) wheels, heat pipes, or run-around loops-allows laboratory building designers to specify smaller heating and cooling systems. This in turn reduces the total amount of energy they use.

Report outlining a proposal being studied to "meet the shortages in the lower Colorado River basin and help the San Antonio region meet some of its future water needs" (cover).

Booklet regarding the Texas Rehabilitation Commissions including services offered to employers, ways to contact the TRC, services for injured workers, reviews, tax incentives for businesses, and resources.