Contact Us | Print Version Search: All EPA This Area

• You are here: EPA Home
• Water
• Wastewater
• Clean Watersheds Needs Survey

OVERVIEW

The United States Environmental Protection Agency's Office of Wastewater Management, in partnership with states, territories and the District of Columbia, conducts the Clean Watersheds Needs Survey (CWNS) every four years. The CWNS is conducted in response to Sections 205(a) and 516 of the Clean Water Act. CWNS Basics provides more information.

WHAT CAN I FIND ON THIS WEB SITE?

This site contains background information, data, reports, and contact information for the CWNS. The highlights are:

• Information and resources needed to participate in CWNS 2008 (February 5, 2008 - February 27, 2009)


• 2004 CWNS Report to Congress is now available!
• Previous reports are also available:
  • 2000 CWNS Report to Congress
  • 1996 CWNS Report to Congress
• CWNS Basics provides information about the data collected and the purpose of the CWNS


• Contact information for state and regional coordinators is available at Where You Live


• National, regional, state, watershed, and facility level data and reports for 2004, 2000, and 1996. The data includes federal needs, population, and flow information for CWNS facilities and project, and is organized by the following categories:




	I. Secondary Wastewater Treatment	VII. Nonpoint Source (NPS) Categories
	II. Advanced Wastewater Treatment	VII-A. NPS Control: Agriculture (Cropland)
	III-A. Infiltration / Inflow (II) Correction	VII-B. NPS Control: Agriculture (Animals)
	III-B. Sewer Replacement / Rehabilitation	VII-C. NPS Control: Silviculture
	IV-A. New Collector Sewers and Appurtenances	VII-D. NPS Control: Urban
	IV-B. New Interceptors Sewer and Appurtenances	VII-E. NPS Control: Ground Water Protection (Unknown Source)
	V. Combined Sewer Overflow (CSO) Correction	VII-F. NPS Control: Marinas
	VI. Storm Water Management Programs	VII-G. NPS Control: Resource Extraction
	VIII. Confined Animal-Point Source	VII-H. NPS Control: Brownfields
	IX. Mining Point Source	VII-I. NPS Control: Storage Tanks
	X. Recycled Water Distribution	VII-J. NPS Control: Sanitary Landfills
	XI. Estuary Management	VII-K. NPS Control: Hydromodification
		VII-L. NPS Control: Individual / Decentralized Sewage Treatment

If you need assistance to access charts, tables, or graphics found on any CWNS page, contact CWNS staff (cwns@epa.gov).

Local Navigation

• CWNS Home Page
• CWNS Basics
• CWNS 2008
  - Web Seminars   - Login
• CWNS 2004
  - Report to Congress   - Data
• CWNS 2000
  - Report to Congress   - Data
• 1996 CWNS
  - Report to Congress   - Data
• Where You Live
• Data Dictionary

• EPA Home
• Privacy and Security Notice
• Contact Us