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S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
TRACE METAL MONITORINGTRACE METAL MONITORING
Pete RawlikRestoration Sciences Department
SFWMD
March 2, 2010
Technical Oversight Committee MeetingMarch 2, 2010
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
Trace Metal Monitoring
In January 2009, SFWMD asked the TOC to consider dropping the last of trace metal monitoring from the Settlement Agreement NSID1 and S5A
Cadmium (Cd), Copper (Cu) and Zinc (Zn)
The TOC wanted more data on metals at NSID1 approved dropping Cd and Zn from S5A suggested Cu at S5A was a potential concern
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
NSID1 on the eastern side of WCA2A
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
Copper at S38B/NSID1
Copper (ug/L)
All values below 5 ug/LMDL = 2 ug/L
3/11/1997 7/24/1998 12/6/1999 4/19/2001 9/1/2002 1/14/2004 5/28/2005 10/10/2006 2/22/2008 7/6/20090
5
10
15
20
25
30
Cu Limit
Copper Value
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
3/11/1997 7/24/1998 12/6/1999 4/19/2001 9/1/2002 1/14/2004 5/28/2005 10/10/2006 2/22/2008 7/6/20090
50
100
150
200
250
300
350
400
Zn limit
Zinc Value
Zinc at S38B/NSID1
Zinc (ug/L)
MDL = 4 ug/L
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
3/11/1997 7/24/1998 12/6/1999 4/19/2001 9/1/2002 1/14/2004 5/28/2005 10/10/2006 2/22/2008 7/6/20090
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Cd Limit
Cadmium Value
Cadmium at S38B/NSID1
Cadmium (ug/L)
MDL = 0.1 ug/L
MDL = 0.3 ug/L
PQL = 1.2 ug/L
PQL = 0.4 ug/L
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
S5A on the north side of WCA1
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
3/1/1997 3/1/1999 2/28/2001 2/28/2003 2/27/2005 2/27/2007 2/26/20090
5
10
15
20
25
30
35
40
Cu Limit
Copper Value
Copper at S5A
Copper (ug/L)
All values below 10 ug/LAverage =2.5 ug/L
MDL = 2 ug/L
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
Conclusions
There is little evidence to suggest a history of issues with trace metals at either S5A or NSID1/S38B.
S O U T H F L O R I D A W A T E R M A N A G E M E N T D I S T R I C T
Request
Eliminate the monitoring of Cd, Cu, and Zn at NSID1
Eliminate monitoring of Cu at S5A