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Water: Water Quality Standards

WQSDB Date Table

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

This is the final release of the WQSDB—it will not be updated. (For future plans, see the Release 9 Fact Sheet.) You can see the WQS documents upon which the WQSDB information was based and access state WQS program webpages. You are also able to download pre-formatted reports, and copies of the database.

If you have any questions, please contact us.

RI - DUS - Criteria - WQSDB vs EPA WQS Document Repository

29 May 2008

State Date of Reach Indexing (Mapping) Date of Criteria Repository - EPA Effective Date DUS - EPA Effective Date
01 - CSKT 2000 no date 4/27/1995 4/27/1995
AL Mapping Not Available
 no date 4/21/2006 4/21/2006
AK Mapping Not Available
 2/27/2004 2/27/2004 2/27/2004
AZ 1998 10/22/2002 10/22/2002 10/22/2002
AR Mapping Not Available
 10/26/2006 10/26/2006 10/26/2006
CA - Board 1 1998 8/18/1994 8/18/1994 8/18/1994
CA - Board 2 1998 11/13/1995 11/13/1995 11/13/1995
CA - Board 3 1998 9/8/1994 9/8/1994 9/8/1994
CA - Board 4 1998 2/25/1995 2/25/1995 2/25/1995
CA - Board 5 1998 7/20/1995 7/20/1995 7/20/1995
CA - Board 6 1998 10/1/1994 10/1/1994 10/1/1994
CA - Board 7 1998 8/8/1994 8/8/1994 8/8/1994
CA - Board 8 1998 7/17/1997 7/17/1997 7/17/1997
CA - Board 9 1998 3/12/1997 3/12/1997 3/12/1997
CO 1998 12/31/2005 12/31/2005 12/31/2005
CT 1997 12/17/2002 12/17/2002 12/17/2002
DC 2002 11/27/2003 2/15/2006 11/27/2003
DE 2000 11/4/2004 11/4/2004 11/4/2004
FL 1998 5/11/2006 10/10/2006 5/11/2006
GA Mapping Not Available 8/5/2002 8/5/2002 8/5/2002
HI Mapping Not Available no date 10/28/2004 10/28/2004
ID 2000 5/4/2000 6/4/2007 4/5/2000
IL 1998 6/15/2005 6/15/2005 6/15/2005
IN 1990 1/14/1997 1/14/1997 1/14/1997
IA 1998 2/6/2002 2/6/2002 2/6/2002
KS 1998 4/27/2005 4/27/2005 4/27/2005
KY 1999 12/17/2004 12/17/2004 12/17/2004
LA 2002 1/1/2000 8/6/2007 1/1/2000
ME Mapping Not Available 5/17/2000 5/17/2000 5/17/2000
MD Mapping Not Available 5/24/2005 5/24/2005 5/24/2005
MA Mapping Not Available no data available 12/1/1993 12/1/1993
MI Mapping Not Available 1/13/2006 1/13/2006 1/13/2006
MN 2004 6/17/2003 6/17/2003 6/17/2003
MO 1999 4/28/2006 4/28/2006 4/28/2006
MS 2002 6/27/2003 6/27/2003 6/27/2003
MT 2004 1/6/2000 8/17/2004 1/6/2000
NE 2002 8/8/2003 8/8/2003 8/8/2003
NV 2002 3/ 21/2003 3/ 21/2003 3/ 21/2003
NH Mapping Not Available 12/10/1999 12/10/1999 12/10/1999
NJ Mapping Not Available No Date 10/1/2006 10/1/2006
NM 2002 10/27/2003 12/29/2006 10/27/2003
NY Mapping Not Available 7/16/1999 7/16/1999 7/16/1999
NC 2001 10/3/2003 10/3/2003 10/3/2003
ND Mapping Not Available 6/15/2001 6/15/2001 6/15/2001
OH 2002 7/21/2002 7/21/2002 7/21/2002
OK 1998 11/14/2006 11/14/2006 11/14/2006
OR Mapping Not Available 3/2/2004 3/2/2004 3/2/2004
PA 2006 2/9/2006 2/9/2006 2/9/2006
PR Mapping Not Available 6/26/2003 6/26/2003 6/26/2003
RI 1998 1/4/2007 1/4/2007 1/4/2007
SC 2000 10/7/2004 10/7/2004 10/7/2004
SD 1998 1/27/1999 1/27/1999 1/27/1999
TN 1998 9/30/2004 9/30/2004 9/30/2004
TX 1998 12/15/2006 12/15/2006 12/15/2006
UT 2002 10/17/2005 10/17/2005 10/17/2005
VI 1989 no data available 5/26/2005 5/26/2005
VT Mapping Not Available 7/2/2000 7/2/2000 7/2/2000
VA 2002 no data available 12/20/2005 12/20/2005
WA Mapping Not Available 12/21/2006 12/21/2006 12/21/2006
WV 1998 9/26/2006 9/26/2006 9/26/2006
WI Mapping Not Available 2/1/1998 2/1/1998 2/1/1998
WY Mapping Not Available 1/25/2002 1/25/2002 1/25/2002


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