Potential ‘next steps’ for proposed sediment quality management areas (SQMAs)
Sediment Quality
Management Area
Parameter
Group
No. of TEL
exceedances
No. of PEL
exceedances
A
Metals
67
12
Multicolor Creek portion of
PAHS
274
131
Suggested next steps



Identify and address existing
sources
Implement appropriate
stormwater BMPs
Evaluate sediment
remediation options
Ongoing or Planned Projects
Pitch Pine Lumber (Bay Drum) -> EPC will request
EPA rescoring of site for potential clean-up funds
(As & PAHs)
Enhanced SQG inspections and education (COT
MS4 proactive inspections and EPC)
Stall Knocker Ranch & Farm supplies ($2million
escrow funding for clean-up?) -> Status of clean-up
efforts FDOT (Site 18a) SW pond
NE McKay Bay
B
SE corner of
NE McKay Bay
C
Mid portion of
NE McKay Bay
PCBS
Pesticides
Metals
PAHS
PCBS
Pesticides
6
72
18
47
2
13
0
20
3
11
0
0
Metals
PAHS
PCBS
Pesticides
25
98
2
33
3
12
1
8






D
East shoreline of
NW McKay Bay
Metals
PAHS
PCBS
Pesticides
8
29
0
10
0
1
0
6



E
McKay Bay dredged hole
Metals
PAHS
PCBS
Pesticides
54
111
3
30
3
8
1
6


Identify sources (legacy or
existing?)
Address any existing sources
Evaluate sediment
remediation options
Identify and address existing
sources
Implement appropriate
stormwater BMPs
Evaluate sediment
remediation options
Identify and address existing
sources
Implement appropriate
stormwater BMPs
Evaluate sediment
remediation options
Evaluate sediment
remediation options
If hole is partially filled in
near-term, consider retaining
CSX/Kimmins land for regional SW treatment?
Sediment Quality
Management Area
F
North-central portion of
NW McKay Bay
Parameter
Group
Metals
PAHS
PCBS
Pesticides
No. of TEL
exceedances
16
114
3
18
No. of PEL
exceedances
0
8
0
3
Suggested next steps



G
Metals
19
1

NE portion of
PAHS
82
5


NE McKay Bay
PCBS
0
0
a long-term sump area to be
filled later
Identify and address existing
sources
Implement appropriate
stormwater BMPs
Evaluate sediment
remediation options
Identify and address existing
sources
Implement appropriate
stormwater BMPs
Evaluate sediment
remediation options
Ongoing or Planned Projects
CSX/Kimmins land for regional SW treatment?
Pitch Pine Lumber (Bay Drum) -> EPC will request
EPA rescoring of site for potential clean-up funds
Enhanced SQG inspections and education (COT
MS4 proactive inspections and EPC)
Sump clean-up at outfall
New baseflow/sw sampling to determine progress
H
SW portion of
NW McKay Bay
Pesticides
Metals
PAHS
PCBS
Pesticides
15
26
61
0
8
2
0
2
0
2



I
Southern portion of
McKay Bay
Metals
PAHS
PCBS
Pesticides
59
54
1
11
0
0
0
3



Continue/enhance P2 and
watershed mgmt
Implement appropriate
stormwater BMPs
Evaluate sediment
remediation options
Continue/enhance P2 and
watershed mgmt
Implement appropriate
stormwater BMPs
Evaluate sediment
remediation options
Throughout Area:
*Coal-based sealants as a source of PAHs -> alternatives available, use City of Austin examples
-Directed sampling to identify PAH sources
* EPA Brownfield Coalition Grant for Greenspace & regional SW treatment benefits
*Optimizing intertidal habitats where foraging most likely (decreasing wildlife risk to exposure)
-Where sumps and treatment proposed within MB, ensure wildlife not attracted to treatment areas
*Risk-based tissue sampling of biota within system
*Consider additional sediment contaminant sampling techniques & parameters
Ongoing Projects:
*FDOT Multicolor Creek / Crosstown Connector modifications and SW treatment potential
-Additional controls after reconfiguration (COT and other partners?)
*30th & Hillsborough SW Permit -> potential for discharge to Multicolor Creek basin
*2 COT Parks -> public land but not considered areas where additional controls could be implemented
*USF Project (Dr. Mia Trotts)-East Tampa Redevelopment Area SW pond contaminants- Education programs associated with project
*Status of Continental Can Clean-Up Site (N of Adamo)
*Incinerator Fly-ash Pond remediation ->enhance intertidal area
-Fill must meet marine WQ criteria
*TPA modification of peninsula into tidal creek system (dredging project on-hold)
*SWFWMD MB Dredged Hole Assessment->placement of material limited to N portion of dredged hole
*COT 30-day sump inspection and maintenance as needed based on inspections
*SWFWMD Spoil disposal sites -> marsh enhancements and exotic removals (out to bid Feb. 2011)
-Need to maintain spoil disposal areas may preclude certain restoration options
*SWFWMD Drainage enhancements to spoil disposal areas (2 pond systems east of site)
Potential Projects:
*CSX/Kimmins land for regional SW treatment? ->existing contaminants and amount of fill (is it useable material?) on site may be problematic
-May be on SWFWMD site acquisition list
-Local government acquisition->SWFWMD could match funding for sw or habitat enhancement project
-Fill could be used for capping material for incinerator pond or dredged hole??->Probably warrants additional contaminant sampling
*COT sump draining to SQMA F -> additional SW/baseflow sampling COT and EPC?
*319(h) funding for additional sump maintenance within area?
*Land acquisition at old drive-in site (Currently private land N of Causeway Blvd -> SE McKay Bay)
-Funding sources for acquisition (TBC)?
-Funding sources for restoration (TPA, FDOT, private entity mitigation?)
-SWFWMD Conceptual plans available
Remediation Efforts to Consider:
*Additional discussion needed on potential remediation efforts (risk-based assessments may be needed to refine options)
-FDEP leveraging sample collection in area for risk assessments from wq