Summary of Phase II Tittabawassee River Flood Plain Sampling
April – June 2002
· All dioxin data is presented in parts per trillion (ppt) of total toxic equivalent (TEQ).
· Samples were collected from 3 soil layers at each sample location, 0-3 inches, 3-6 inches and
12-15 inches. At certain locations, based on property use, a surface soil sample was also collected from 0-1 inch.
· Sample labels should be interpreted as follows:
CBL 1-3” means Caldwell Boat Launch, location #1 at a 0-3 inch depth.
· Polychlorinated biphenyl (PCB) compounds did not represent a significant contribution to the TEQ at any sample location.
Chippewa River Flood Plain Soil(CHW), Chippewa Nature Center, Midland County
Map #1 / Pine River Flood Plain Soil (PINE),
Chippewa Nature Center,
Midland County
Map #1 / Tittabawassee River
Flood Plain Soil, Sanford (SFD),
Midland County
Upstream
(Not Shown on Map)
CHW 1-3” / 5 / PINE 1-3” / 3 / SFD 1-3” / 3
CHW 1-6” / 8 / PINE 1-6” / 3 / SFD 1-6” / 3
CHW 1-15” / 11 / PINE 1-15” / 9 / SFD 1-15” / 1
CHW 2-3” / 4 / PINE 2-3” / 8 / SFD 2-3” / 3
CHW 2-6” / 6 / PINE 2-6” / 11 / SFD 2-6” / 5
CHW 2-15” / 7 / PINE 2-15” / 12 / SFD 2-15” / 2
Emerson Park Soil (EMP),
City of Midland
Midland County
Map #1 / Caldwell Boat Launch Soil (CBL),
Midland County
Map #2 / Freeland Festival Park Soil (FFP),
Freeland,
Saginaw County
Map #3
EMP 1-1” / 10 / CBL 1-1” / 37 / FFP 1-1” / 1,500
EMP 1-3” / 9 / CBL 1-3” / 150 / FFP 1-3” / 1,400
EMP 1-6” / 5 / CBL 1-6” / 150 / FFP 1-6” / 2,700
EMP 1-15” / 21 / CBL 1-15” / 270 / FFP 1-15” / 3,400
EMP 2-1” / 23 / CBL 2-1” / 170 / FFP 2-1” / 1,200
EMP 2-3” / 29 / CBL 2-3” / 18 / FFP 2-3” / 1,500
EMP 2-6” / 53 / CBL 2-6” / 260 / FFP 2-6” / 1,600
EMP 2-15” / 100 / CBL 2-15” / 210 / FFP 2-15” / 2,400
EMP 3-1” / 10 / FFP 3-1” / 360
EMP 3-3” / 20 / FFP 3-3” / 370
EMP 3-6” / 22 / FFP 3-6” / 190
EMP 3-15” / 6 / FFP 3-15” / 760
Livestock Farm Soil (LIVE),
River Road, Saginaw County
Map #3 / West Michigan Park Soil (WMP),
Saginaw County
Map #5 / Cropland Soil (CROP),
West Michigan Avenue, Saginaw County
Map #5
LIVE 1-3” / 2 / WMP 1-1” / 460 / CROP 1-3” / 20
LIVE 1-6” / 2 / WMP 1-3” / 270 / CROP 1-6” / 20
LIVE 1-15” / 1 / WMP 1-6” / 350 / CROP 1-15” / 19
LIVE 2-3” / 4 / WMP 1-15” / 450 / CROP 2-3” / 21
LIVE 2-6” / 3 / WMP 2-1” / 510 / CROP 2-6” / 22
LIVE 2-15” / <1 / WMP 2-3” / 420 / CROP 2-15” / 7
LIVE 3-3” / 3 / WMP 2-6” / 670 / CROP 3-3” / 49
LIVE 3-6” / 5 / WMP 2-15” / 340 / CROP 3-6” / 30
LIVE 3-15” / 1 / WMP 3-1” / 970 / CROP 3-15” / 22
LIVE 4-3” / 3 / WMP 3-3” / 540 / CROP 4-3” / 2
LIVE 4-6” / 1 / WMP 3-6” / 540 / CROP 4-6” / 1
LIVE 4-15” / 1 / WMP 3-15” / 140 / CROP 4-15” / 2
LIVE 5-3” / 5 / CROP 5-3” / 1
LIVE 5-6” / 3 / CROP 5-6” / 1
LIVE 5-15” / 2 / CROP 5-15” / <1
LIVE 6-3” / 22
LIVE 6-6” / 29
LIVE 6-15” / 33
Imerman Park Soil (IMP),
Saginaw County
Map #4 / Former National Plate Glass Soil
(NPG)
Saginaw County
Map #5
IMP 1-3” / 1,400 / NPG 1-1” / 1
IMP 1-6” / 2,400 / NPG 1-3” / 1
IMP 1-15” / 1,500 / NPG 1-6” / 1
IMP 2-3” / 1,300
IMP 2-6” / 1,000 / Riverside Boulevard Soil,
(R 19)
Saginaw County
Map #5
IMP 2-15” / 900
IMP 3-3” / 970
IMP 3-6” / 950
IMP 3-15” / 1,100
IMP 4-3” / 610 / R 19 1-3” / 780
IMP 4-6” / 980 / R 19 1-6” / 530
IMP 4-15” / 670 / R 19 1-15” / 950
IMP 5-3” / 800 / R 19 2-3” / 240
IMP 5-6” / 620 / R 19 2-6” / 100
IMP 5-15” / 640 / R 19 2-15” / 140
IMP 6-3” / 1,100 / R 19 3-1” / 450
IMP 6-6” / 1,200 / R 19 3-3” / 1,100
IMP 6-15” / 570 / R 19 3-6” / 1,400
IMP 7-1” / 1,400 / R 19 4-1” / 46
IMP 7-3” / 1,600 / R 19 5-1” / 81
IMP 7-6” / 1,800
IMP 7-15” / 1,200 / Eggs from Riverside Boulevard
(R 19 egg)
Saginaw County
Map #5
IMP 8-1” / 380
IMP 8-3” / 670
IMP 8-6” / 1,000
IMP 8-15” / 390
IMP 9-3” / 240 / R 19 egg 1 / 48
IMP 9-6” / 630 / R 19 egg 2 / 42
IMP 9-15” / 550 / R 19 egg 3 / 41
IMP 10-3 / 310 / R 19 egg 4 / 16
IMP 10-6” / 460
IMP 10-15” / 440 / Former National Plate Glass
Surface Water Run-off (NPG GW)
Saginaw County
Map #5
IMP 11-3” / 38
IMP 11-6” / 40
IMP 11-15” / 17
IMP 12-3” / 12
IMP 12-6” / 13 / NPG GW-1 / .015
IMP 12-15” / 7 / NPG GW-2 / .019
IMP 13-3” / 5
IMP 13-6” / 5
IMP 13-15” / 3
IMP 14-3” / 37
IMP 14-6” / 24
IMP 14-15” / 14
The current soil dioxin criteria for residential direct contact is 90 ppt TEQ, as established under the provisions of Part 201, Environmental Remediation, of the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended. Guidance criteria established by the U.S. Agency for Toxic Substances and Disease Registry (ATSDR) range from 50 ppt TEQ as a screening level indicating a need for further study to 1,000 ppt TEQ as an action level. These numbers do not apply to the egg or surface water run-off data.
For analytical results, the Phase I study, and the DEQ Saginaw Bay Watershed Sediment Study, refer to the DEQ web site www.michigan.gov/deq (click on Land, Land Cleanup, Site Investigation & Cleanup; under “Information,” scroll down to Tittabawassee River Flood Plain Contamination).