0 1 2 0.5 Miles

«Co. Rd. 14

Man

nin

g A

ve

Kea

ts A

ve 10th St. N.

30th St. N.

Inw

oo

d A

ve

Co. Rd. 14

I-94

I-49

4 I-

69

4

Ind

i a n Tr. S.

Washington Co. Landfill

3M Oakdale Disposal Site

10th St. S.

Nea

l A

ve

.

Oa

kg

ree

n A

ve.

Sta

gec

oac

h T

r.

19th St. N.

PFOS - All Aquifers - January 2019PFOS > 1.35 ppb (>50x HBV) PFOS 0.021-0.027 ppb (75-100% HBV)

PFOS 0.271-1.35ppb (10-50x HBV) PFOS 0.0136-0.02ppb (50-75% HBV)

PFOS 0.136-0.27ppb (5-10x HBV) PFOS 0.004-0.0135ppb (<50% HBV)

PFOS 0.028-0.135ppb (1-5x HBV) PFOS not detected

Phone: 651-201-4897 or 1-800-657-3908

MDH Health Based Value (HBV) for PFOS

is 0.027 parts per billion (ppb; or 27 parts per

trillion)

NOTES: Map combines data from all aquifers, actual concentrations in any area may vary; blank spaces indicate no sample data 1/7/2019

June 2018 - PFOS - All Aquifers

0 1 20.5 Miles

«Co. Rd. 14

Man

nin

g A

ve

Kea

ts A

ve 10th St. N.

30th St. N.

Inw

oo

d A

ve

Co. Rd. 14

I-94

I-49

4 I-

69

4

Ind

i a n Tr. S.

Washington Co. Landfill

3M Oakdale Disposal Site

10th St. S.

Nea

l A

ve

.

Oa

kg

ree

n A

ve.

Sta

gec

oac

h T

r.

PFO S greater tha n 1.35pp b (>50x HBV) PFO S 0.021-0.027ppb (75-100% HBV)

PFO S 0.271-1.35pp b (10-50x HBV) PFO S 0.0136-0.02ppb (50-75 % HBV)

PFO S 0.136-0.27pp b (5-10x HBV) PFO S 0.004-0.0135pp b (<50 % HBV)

PFO S 0.028-0.135ppb (1-5x HBV) PFO S no t detected

Phone: 651-201-4897 or 1-800-657-3908

MDH Health Based Value (HBV) for PFOS

is 0.027 parts per billion (ppb; or 27 parts per

trillion)

NOTES: Map combines data from all aquifers, actual concentrations in any area may vary; blank spaces indicate no sample data 6/26/2018

0 1 20.5 Miles

«

3/26/2018

Co. Rd. 14

Man

nin

g A

ve

Ke

ats

Ave

10th St. N.

30th St. N.

Woodbury Afton

West Lakeland Twp.

Oakdale

Lake Elmo

Inw

oo

d A

ve

Co. Rd. 14

I-94

I-494

I-6

94

Ind

i a n Tr. S.

Phone : 651-201-4897 or 1-800-657-3908 PFOS - All Aquifers - March 2018

PFO S greate r than 1.35ppb (>50x HBV) PFO S 0.021-0.027ppb (75-100% HBV) MDH Health Based

Value (HBV) fo r PFOS i s 0.027 part s pe r billion

(ppb; o r 2 7 part s per trillion)

PFO S 0.271-1.35ppb (10-50 x HBV) PFO S 0.0136-0.02ppb (50-75% HBV)

PFO S 0.136-0.27ppb (5-10 x HBV) PFO S 0.004-0.0135ppb (<50% HBV)

PFO S 0.028-0.135ppb (1-5 x HBV) PFO S no t detected

OTES : Ma p combines dat a fro m all aquifers , actual concentrations i n any are a ma y vary ; blank space s indicat e no sample data

/

0 1.5 30.75 Miles 11/29/2017

Woodbury Afton

West Lakeland Twp.

Baytown Twp.

Lake Elmo

Oakdale

Ma

ple

woo

d

I-69

4

I-94

I-49

4

Man

nin

g A

ve

.

Valley Creek Rd.

Lake Jane

Lake E

lmo

Kea

ts A

ve

.

La

ke E

lmo

A

ve.

10th St N.

Nea

l A

ve

.

20th St N.

Oakg

ree

n A

ve.

I-94

10th St N.

Hwy 14

Phone: 651-201-4897 PFOS North of I-94 - All Aquifers - Nov 2017 or 1-800-657-3908

PFOS greater than 1.35 ppb (>50x HBV) PFOS 0.028-0.135ppb (1-5x HBV) PFOS 0.004-0.0135ppb (<50% HBV)

PFOS 0.271-1.35ppb (10-50x HBV) PFOS 0.021-0.027ppb (75-100% HBV) PFOS not detected

PFOS 0.136-0.27ppb (5-10x HBV) PFOS 0.0136-0.02ppb (50-75% HBV) MDH Healt h Base d Value (HBV ) for PFOS is 0.027 parts pe r billio n (ppb; o r 2 7 parts per trillion)

Map combines data from all aquifers, actual concentrations in any area may vary; blank spaces indicate no sample data.

/

0 1.5 30.75 Miles

MDH - 6/5/2017

Woodbury Afton

West Lakeland Twp.

Baytown Twp.

Lake Elmo

Oakdale

Ma

ple

woo

d

I-69

4

I-94

I-49

4

Man

nin

g A

ve

.

Valley Creek Rd.

Lake Jane

Lake E

lmo

Kea

ts A

ve

.

La

ke E

lmo

A

ve.

10th St N.

Nea

l A

ve

.

20th St N.

Oakg

ree

n A

ve.

I-94

10th St N.

Hwy 14

PFOS North of I-94 - All Aquifers - June 2017

parts per billion (ppb; or 27 parts per trillion)

PFOS greater than 1.35 ppb (>50x HBV) PFOS 0.028-0.135ppb (1-5x HBV) PFOS 0.004-0.0135ppb (<50% HBV)

PFOS 0.271-1.35ppb (10-50x HBV) PFOS 0.021-0.027ppb (75-100% HBV) PFOS not detected

PFOS 0.136-0.27ppb (5-10x HBV) PFOS 0.0136-0.02ppb (50-75% HBV) MDH Health Based Value (HBV) for PFOS is 0.027

Map combines data from all aquifers, actual concentrations in any area may vary; blank spaces indicate no sample data.

health.hazard@state.mn.us651-201-4899

0 1.5 30.75 Miles

Woodbury

Afton

West Lakeland Twp.

Baytown Twp.

Lake Elmo Oakdale

Maplewood

10th St. N.

Oa

kg

ree

n A

ve.

Man

nin

g A

ve

.

20th St. N.

Kea

ts A

ve

.

Hwy 14

I-69

4

I-94 La

ke E

lmo

Ave

.

Inw

oo

d A

ve

.

Valley Creek Rd.

I-49

4

Nea

l A

ve

.

I-94

PFOS in Oakdale/Lake Elmo/West Lakeland Area - All Aquifers - Feb 2017 PFOS > 10x EP A HA PFOS 50-75% EP A HA PFOS <10% EPA HA

PFOS >EPA HA and <10x EPA HA PFOS 25-50% EP A HA PFOS not detected /PFOS 75-100% EPA HA PFOS 10-25% EPA HA

Phone: 651-201-4897 or 1-800-657-3908

2/22/2017 EPA HA = US Environmental Protection Agency Health Advisory value of 0.07 parts per billion (ppb); PFOS concentrations shown as a percentage of the EPA HA. Map combines data from all aquifers, actual concentrations in any area may vary; blank spaces indicate no sample data.

PFOS in Washington Co. Groundwater - All Aquifers - North - Sept 2016

/

0 1 20.5

Miles

MDH - 9/16/2016

PFOS > 10x EPA HA

PFOS >EPA HA and <10x EPA HA

PFOS 75-100% EPA HA

PFOS 50-75% EPA HA

PFOS 25-50% EPA HA

PFOS 10-25% EPA HA

PFOS <10% EPA HA

PFOS not detected

Well with PFC data

Woodbury Afton

West Lakeland Twp.

Baytown Twp.

Oakdale

MaplewoodSt.Paul

North St.Paul

I-94

I-49

4

I-69

4

Hwy 5

Ma

nn

ing

Av

e.

Keats

Ave.

Inw

oo

dA

ve.

Rad

ioD

r.

Wo

od

bu

ryD

r.

10th St. N.

20th St. N.

Valley Creek Rd.

NealA

ve

.

Cen

tury

Ave.

McK

nig

ht

Ave

.Lake Elmo

Oak

gre

en

Ave.

La

ke

Elm

oA

ve.