Water and Hydrology Resources

Chapter 93 published by the EPA on Pennsylvania water quality standards. Outlines the general provisions, antidegradation requirements, water quality criteria, and designated water uses.

The Water Quality Standards Handbook is a compilation of the EPA's water quality standards (WQS) program guidance including recommendations for states, authorized tribes, and territories in reviewing, revising, and implementing WQS.

Water Quality Standards are the foundation of the water quality-based pollution control program mandated by the Clean Water Act.

The Division of Water Quality Standards (DWQS) includes several programs to protect and manage clean water and public health. The water quality program implements portions of the Pennsylvania Clean Streams Law (P.L 1987, Act 394 of 1937, as amended (35 P.S. §§ 691.1 et seq.)) and the federal Clean Water Act (33 U.S.C. §1251 et seq. (1972)).

The EPA's Pennsylvania water quality information.

The fourth edition of the World Health Organization’s (WHO) Guidelines for drinking-water quality (GDWQ) builds on over 50 years of guidance by WHO on drinking-water quality, which has formed an authoritative basis for the setting of national regulations and standards for water safety in support of public health.

When setting national drinking-water quality regulations and standards, many countries consider the WHO Guidelines for drinking-water quality (GDWQ). To better understand the extent to which the GDWQ are used and reflected in these standards, this global review summarizes information from 104 countries and territories on values specified in national drinking-water quality standards for aesthetic, chemical, microbiological and radiological parameters.

See References & Source Documents to find list of country drinking-water quality regulations or standards.