Federal regulatory documents can be obtained from the USEPA website. Most states also post their regulatory documents on the websites of their respective primacy agencies. For example, the regulations pertaining to drinking water in California are posted on the website of the California Department of Health Services. Below are some Federal regulatory documents related to drinking water quality and treatment.

Stage 2 Disinfectants and Disinfection By-Products Rule
	Stage 2 Disinfectants and Disinfection By-Products Rule (2006)
	IDSE Guidance Manual (2006)
	DRAFT Guidance on Operational Evaluations (2007)
	Simultaneous Compliance Guidance Manual for Stage 2 and LT2 DBP Rules (2006)
	DRAFT Consecutive Systems Guidance Manual for the Stage 2 DBPR (2007)
Stage 1 Disinfectants and Disinfection By-Products Rule
	Stage 1 Disinfectants and Disinfection By-Products Rule (1998)
	Alternative Disinfectants & Oxidants Guidance Manual (1999)
	Enhanced Coagulation Guidance Manual (1999)
	Stage 1 DBP Rule: A Quick Reference Guide (2002)
Long-Term 2 Enhanced Surface Water Treatment Rule
	Long Term 2 Enhanced Surface Water Treatment Rule (2006)
	Source Water Monitoring Guidance Manual (2006)
	DRAFT Toolbox Guidance Manual (2003)
	Comprehensive Surface Water Treatment Rules Quick Reference Guide: Systems Using Conventional or Direct Filtration (2006)
	UV Disinfection Guidance Manual for the Final LT2 ESWTR (2006)
	Membrane Filtration Guidance Manual (2005)
Long-Term 1 Enhanced Surface Water Treatment Rule
	Long Term 1 Enhanced Surface Water Treatment Rule (2002)
	Guidance Document on Turbidity Provisions (2004)
	Handbook on Comprehensive Performance Evaluations (1998)
Filter Backwash Rule
	Filter Backwash Rule (2001)
	Technical Guidance Manual for Filter Backwash Rule (2002)
	Filter Backwash Recycling Rule: A Quick Reference Guide (2001)
Interim Enhanced Surface Water Treatment Rule
	Interim Enhanced Surface Water Treatment Rule (1998)
	Guidance Manual on Disinfection Profiling and Benchmarking (1999)
	Interim Enhanced Surface Water Treatment Rule: Quick Reference (2001)
	Surface Water Treatment Rule (1989)
Arsenic Rule
	Arsenic Rule (2002)
	Arsenic Rule Guidance Manual less Appendix F (2002)
	Appendix F for Arsenic Rule Guidance Manual (2002)
	Arsenic Rule Implementation Guidance (2002)
	Arsenic Rule Quick Reference Guide (2001)
Public Notification Rule
	Public Notification Rule (2000)
	Public Notification Rule Technical Corrections (2000)
	Public Notification Rule Handbook (2000)
	The Public Notification Rule - A Quick Reference Guide (2000)
Lead and Copper Rule
	Lead and Copper Rule Corrections and Clarifications (2004)
	Lead and Copper Rule Revisions (2007)
	Lead and Copper Rule Minor Revisions (2000)
	Lead and Copper Rule (1991)
	Lead and Copper Rule: A Quick Reference Guide (2004)
Radionuclides Rule
	Radionuclides Rule (2000)
	Radionuclides Rule: A Quick Reference Guide (2001)
Groundwater Rule
	Groundwater Rule, Final (2006)
Total Coliform Rule
	Total Coliform Rule (1989)
	Total Coliform Rule, Quick Reference Guide (2001)
Miscellaneous Documents
	Drinking Water Standards & Health Advisories (2002)
	Unregulated Contaminant Monitoring Regulation 2 (UCMR2) for Public Water Systems (2007)