RESEARCH AND DEVELOPMENT DEPARTMENT · 26, 2001, Scope of Work (SOW) for Ground-water Quality Monitoring of the Reservoir. The SOW was approved in a letter from the IEPA dated August

RESEARCH AND DEVELOPMENTDEPARTMENT

REPORT NO. 06-43

GROUNDWATER MONITORING REPORT

TUNNEL AND RESERVOIR PLANTHORNTON TRANSITIONAL FLOOD CONTROL RESERVOIR

WATER QUALITY MONITORING WELLS2005 ANNUAL REPORT

AUGUST 2006

August 8, 2006

Ms. Marcia Willhite, ChiefBureau of WaterIllinois Environmental Protection AgencyP. O. Box 19276Springfield, IL 62794–9276

Subject: Thornton Transitional Flood Control Reservoir Water Quality MonitoringWells Annual Report for the Year 2005

Dear Ms. Willhite:

Enclosed are three copies of “Groundwater Monitoring Report, Tunnel and Reservoir PlanThornton Transitional Flood Control Reservoir Water Quality Monitoring Wells 2005 Annual Re-port.”

Very truly yours,

Louis KolliasDirectorResearch and Development

LK:JSJ:lmfEnclosurescc w/enc: Ms. Sally K. Swanson (USEPA Region V—WC15J) (2)cc via MWRDGC website:

Mr. SobanskiMr. JamjunDr. GranatoDr. O’ConnorDr. JainMr. MacDonaldMs. NasonLibrary

Metropolitan Water Reclamation District of Greater Chicago

100 East Erie Street Chicago, Illinois 60611-2803 312-751-5600

GROUNDWATER MONITORING REPORT

TUNNEL AND RESERVOIR PLANTHORNTON TRANSITIONAL FLOOD CONTROL RESERVOIR

WATER QUALITY MONITORING WELLS2005 ANNUAL REPORT

Research and Development DepartmentLouis Kollias, Director August 2006

TABLE OF CONTENTS

i

Page

LIST OF TABLES ii

LIST OF FIGURES iii

INTRODUCTION 1

Objective 1

Project Description 1

Field Sampling 1

Analytical Data Results 2

Discussion of Results 2

LIST OF TABLES

ii

TableNo. Page

1 List of Parameters to Be Analyzed According to Table 2 From theIEPA’s Scope of Work

_3

2 Parameters From Table 2 of IEPA’s SOW in Water Quality MonitoringWell QT–1 During the January 12 and February 14, 2005, Fill Events

05


07


09


11

6 Parameters From Table 2 of IEPA’s SOW in Thornton TransitionalReservoir During the January 12 and February 14, 2005, Fill Events

13

iii

LIST OF FIGURES

FigureNo. Page

1 Thornton Transitional Reservoir Monitoring Well Locations 4

1

GROUNDWATER MONITORING REPORTTUNNEL AND RESERVOIR PLAN

THORNTON TRANSITIONAL RESERVOIRWATER QUALITY MONITORING WELLS

2005 ANNUAL REPORT

Introduction

The purpose of this report is to meet the re-porting requirements of the Illinois Environ-mental Protection Agency (IEPA) relative toannual flood control utilization for the Thorn-ton Transitional Flood Control Reservoir(Reservoir) for 2005. The specific informa-tional requirements are described in the June26, 2001, Scope of Work (SOW) for Ground-water Quality Monitoring of the Reservoir.The SOW was approved in a letter from theIEPA dated August 6, 2001.

The reporting requirements are found in Sec-tion 7 of the SOW. The requirements for theannual flood control utilization of the Reser-voir shall include:

1. The year’s monitoring wells sample analy-sis results.

2. Reservoir content grab sample results.

3. Detailed review and comparison of themonitoring well sampling analysis re-sults, utilizing the monitoring well statis-tical background determinations.

Objective. The objective of collectinggroundwater quality data from the four moni-toring wells QT–1, QT–2, QT–3, and QT–4and Reservoir content grab samples is to as-sess any possible contamination of the moni-toring wells which may result from the seep-age produced during the fill event for any ofthe parameters indicated in Table 2 of theSOW (Table 1).

Project Description. The Reservoir is in theWest Lobe of the Thornton Quarry, southeastof the intersection of the Tri-State Tollwayand Halsted Street in Thornton, Illinois (Fig-ure 1). The Reservoir is the final structuralmeasure to be implemented for the LittleCalumet River Watershed under the NaturalResources Conservation Service (NRCS) Lit-tle Calumet Watershed Plan of November1998. The Reservoir will provide 3.1 billiongallons of floodwater storage, which repre-sents the capture of the 100-year storm eventfrom Thorn Creek at a point just south of theTri-State Tollway.

The project will provide flood control bene-fits for 21 businesses and 4,400 residences,for an average benefit of $6.8 million peryear. Within the Little Calumet watershed arethe communities of Blue Island, CalumetCity, Dixmoor, Dolton, Glenwood, Harvey,Lansing, Phoenix, Riverdale, and South Hol-land, which will receive flood control bene-fits.

The Reservoir consists of a diversion struc-ture at Thornton Creek, a 24-foot diameterdropshaft and 22-foot diameter conveyancetunnel to the Lower West Lobe of ThorntonQuarry. The project also includes an 8-footdiameter tunnel connected to the CalumetTunnel and Reservoir Plan (TARP) Systemthat will be utilized for Reservoir dewateringpurposes only.

Field Sampling. There were two fill eventsat the Thornton Transitional Reservoir dur-ing 2005, January 12, 2005, and February14, 2005.

2

The January fill event began on January 12,2005, resulting in storage of 1.49 billion gal-lons in the Reservoir. On February 14, 2005,with 4 to 6 feet of CSO water elevation in theReservoir from the January 12, 2005, fillevent, another diversion occurred. This eventresulted in an additional 356 million gallonsof stormwater diverted to the Reservoir.

During these fill events, in accordance withthe SOW, samples were collected from thefour water quality wells surrounding the Res-ervoir and grab samples were taken from theReservoir. The parameters analyzed for arefound in Table 2 of the SOW (Table 1).

Analytical Data Results. Tables 2, 3, 4, and5 contain the results of the analyses of thefour water quality monitoring wells alongwith the calculated upper 95 percent confi-dence limits for the January 12 through Feb-ruary 14, 2005, fill events. Table 6 containsthe results of the grab samples from theReservoir.

Discussion of Results. During both fillevents, samples of both the surrounding wa-ter quality monitoring wells and the Reser-voir itself were collected as long as there waswater in the Reservoir per requirements ofthe SOW.

During the January 12, 2005, and February14, 2005, fill events, the 95 percent upperconfidence limit from the background con-centration was exceeded for the following pa-rameters in the following wells: QT–2 (Table3) iron and manganese, QT–3 (Table 4) chlo-ride and copper, and QT–4 (Table 5) cyanide.Well QT–1 (Table 2) showed no water qual-ity exceedances from background concentra-tions. Following the fill events, when theReservoir was dry, except for chloride in QT–3, there were no significant changes to back-ground concentrations at any of the monitor-ing wells.

April 20, 2005 1:53 PM

3

TABLE 1: LIST OF PARAMETERS TO BE ANALYZED ACCORDING TO TABLE 2 FROMTHE IEPA’S SCOPE OF WORK

ArsenicBoronChlorideCopperFecal ColiformIronLeadMercuryPhenolsSulfateTotal Dissolved Solids

AmmoniaBariumCadmiumChromiumCyanideFluorideManganeseNickelSilverTemperatureNitrate

Biochemical Oxygen Demand (5-day and 21-day)

Tab

le 2

: PA

RA

ME

TE

RS

FRO

M T

AB

LE

2 O

F IE

PA’S

SO

W I

N W

AT

ER

QU

AL

ITY

MO

NIT

OR

ING

WE

LL

QT

–1 D

UR

ING

TH

EJA

NU

AR

Y 1

2 A

ND

FE

BR

UA

RY

14,

200

5, F

ILL

EV

EN

TS

5

Tab

le 2

(SO

W)

Para

met

ers

Tot

alFe

cal

Dis

solv

edA

mm

onia

Ars

enic

Bor

onC

hlor

ide

Cop

per

Col

ifor

mIr

onL

ead

Mer

cury

Phen

ols

Sulf

ate

Solid

sN

itrog

enD

ate

(mg/

L)

(mg/

L)

(mg/

L)

(mg/

L)

(cfu

/100

mL

)(m

g/L

)(m

g/L

)(µ

g/L

)(µ

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)

1/20

/05

<0.

002

0.31

243

40.

007

<1

35.2

37<

0.00

2<

0.05

<3

372

1614

0.49

1/26

/05

<0.

002

0.30

942

90.

014

<1

27.2

37<

0.00

2<

0.05

<2

384

1642

0.48

2/2/

05<

0.00

20.

348

363

0.00

8<

14.

538

<0.

002

<0.

05<

239

511

380.

392/

10/0

5<

0.00

20.

302

422

0.00

6<

125

.734

<0.

002

<0.

05<

440

013

800.

372/

17/0

5W

ell c

ould

not

be

sam

pled

*2/

25/0

5<

0.00

20.

271

419

0.01

3<

126

.340

<0.

006

<0.

05<

240

015

440.

293/

1/05

<0.

002

0.32

244

20.

010

<1

13.6

38<

0.01

1<

0.05

<2

466

1572

0.50

Rev

ised

<0.

003

NA

552

0.01

8N

A47

.612

<0.

015

<0.

15N

A48

922

79N

A95

% U

pper

Con

fide

nce

Lim

it

Exc

ursi

onN

oN

AN

oN

oN

AN

oN

oN

oN

AN

oN

oN

A

Tabl

e 2

(Con

tinue

d): P

AR

AM

ET

ER

S FR

OM

TA

BL

E 2

OF

IEPA

’S S

OW

IN

WA

TE

R Q

UA

LIT

Y M

ON

ITO

RIN

G W

EL

L Q

T–1

DU

RIN

G T

HE

JA

NU

AR

Y 1

2 A

ND

FE

BR

UA

RY

14,

200

5, F

ILL

EV

EN

TS

6

Tab

le 2

(SO

W)

Para

met

ers

Nitr

ate

Bar

ium

Cad

miu

mC

hrom

ium

Cya

nide

Fluo

ride

Man

gane

seN

icke

lSi

lver

Tem

pera

ture

Nitr

ogen

BO

D5

BO

D21

Dat

e(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)°C

(mg/

L)

(mg/

L)

(mg/

L)

1/20

/05

0.07

11<

0.00

04<

0.00

40<

0.00

30.

240.

0594

<0.

002

<0.

0008

11.2

<0.

005

<2

<2

1/26

/05

0.07

01<

0.00

04<

0.00

40<

0.00

30.

200.

0658

<0.

002

<0.

0008

11.1

<0.

006

<2

<2

2/2/

050.

0749

<0.

0004

<0.

0040

<0.

003

0.15

0.02

80<

0.00

2<

0.00

0811

.2<

0.00

5<

2<

22/

10/0

50.

0761

<0.

0004

<0.

0040

<0.

003

0.21

0.11

00<

0.00

2<

0.00

0811

.8<

0.00

5<

4<

32/

17/0

5W

ell c

ould

not

be

sam

pled

*2/

25/0

50.

0740

<0.

0004

<0.

0040

<0.

003

0.27

0.08

20<

0.00

2<

0.00

0812

.1<

0.00

7<

2<

33/

1/05

0.06

93<

0.00

12<

0.00

40<

0.00

30.

330.

0286

<0.

002

<0.

0008

12.3

<0.

005

<2

<3

Rev

ised

0.09

63<

0.00

12<

0.00

48<

0.00

20.

570.

1460

NA

**N

A0.

024

NA

NA

95%

Upp

erC

onfi

denc

eL

imit

Exc

ursi

onN

oN

oN

oN

oN

oN

oN

AN

AN

AN

oN

AN

A

NA

—no

t app

licab

le.

No

= c

once

ntra

tion

did

not

exce

ed 9

5 pe

rcen

t up

per

conf

iden

ce l

imit;

Yes

= c

once

ntra

tion

exce

eded

95

perc

ent

uppe

r co

nfid

ence

lim

it.

**U

nabl

e to

col

lect

sam

ple

beca

use

snow

blo

cked

acc

ess

to th

e w

ell.

**B

ackg

roun

d va

lue

was

bel

ow d

etec

tion

limit,

95

perc

ent u

pper

con

fide

nce

limit

coul

d no

t be

dete

rmin

ed.

Tab

le 3

: PA

RA

ME

TE

RS

FR

OM

TA

BL

E 2

OF

IEPA

’S S

OW

IN

WA

TE

R Q

UA

LIT

Y M

ON

ITO

RIN

G W

EL

L Q

T–2

DU

RIN

G T

HE

JAN

UA

RY

12

AN

D F

EB

RU

AR

Y 1

4, 2

005,

FIL

L E

VE

NT

S

7

Tab

le 2

(SO

W)

Para

met

ers

Tot

alFe

cal

Dis

solv

edA

mm

onia

Ars

enic

Bor

onC

hlor

ide

Cop

per

Col

ifor

mIr

onL

ead

Mer

cury

Phen

ols

Sulf

ate

Solid

sN

itrog

enD

ate

(mg/

L)

(mg/

L)

(mg/

L)

(mg/

L)

(cfu

/100

mL

)(m

g/L

)(m

g/L

)(µ

g/L

)(µ

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)

1/20

/05

<0.

002

0.18

722

50.

011

<3

18.1

87<

0.00

2<

0.05

<6

402

1045

0.44

1/26

/05

Wel

l cou

ld n

ot b

e sa

mpl

ed*

2/2/

05<

0.00

20.

185

200

0.01

4<

106

.905

<0.

002

<0.

05<

238

510

420.

172/

10/0

5<

0.00

20.

343

329

0.00

7<

101

.261

<0.

002

<0.

05<

564

217

830.

182/

17/0

5<

0.00

20.

366

357

0.00

9<

101

.711

<0.

002

<0.

05<

263

717

280.

632/

25/0

5<

0.00

20.

363

351

0.00

6<

101

.744

<0.

007

<0.

11<

258

114

840.

073/

1/05

<0.

002

0.35

533

30.

019

<1

01.5

49<

0.01

4<

0.05

<2

569

1624

0.12

Rev

ised

<0.

006

NA

420

0.02

7N

A04

.497

<0.

015

<0.

23N

A71

824

85N

A95

% U

pper

Con

fide

nce

Lim

it

Exc

ursi

onN

oN

AN

oN

oN

AY

esN

oN

oN

AN

oN

oN

A

Tabl

e 3

(Con

tinue

d): P

AR

AM

ET

ER

S F

RO

M T

AB

LE

2 O

F IE

PA’S

SO

W I

N W

AT

ER

QU

AL

ITY

MO

NIT

OR

ING

WE

LL

QT

–2D

UR

ING

TH

E J

AN

UA

RY

12

AN

D F

EB

RU

AR

Y 1

4, 2

005,

FIL

L E

VE

NT

S

8

Tab

le 2

(SO

W)

Para

met

ers

Nitr

ate

Bar

ium

Cad

miu

mC

hrom

ium

Cya

nide

Fluo

ride

Man

gane

seN

icke

lSi

lver

Tem

pera

ture

Nitr

ogen

BO

D5

BO

D21

Dat

e(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)°C

(mg/

L)

(mg/

L)

(mg/

L)

1/20

/05

0.04

04<

0.00

04<

0.00

4<

0.00

30.

150.

3478

0.03

8<

0.00

0813

.10.

216

<2

31/

26/0

5W

ell c

ould

not

be

sam

pled

*2/

2/05

0.04

22<

0.00

04<

0.00

4<

0.00

30.

150.

1906

0.02

3<

0.00

0812

.50.

014

<2

32/

10/0

50.

0509

<0.

0004

<0.

004

<0.

003

0.15

0.05

330.

032

<0.

0008

12.6

0.36

6<

33

2/17

/05

0.05

24<

0.00

04<

0.00

4<

0.00

30.

120.

0373

0.03

4<

0.00

0813

.00.

651

<2

32/

25/0

50.

0514

<0.

0004

<0.

004

<0.

003

0.18

0.04

350.

028

<0.

0008

13.4

1.19

5<

23

3/1/

050.

0497

<0.

0012

<0.

004

<0.

003

0.19

0.03

170.

037

<0.

0008

13.2

2.57

0<

22

Rev

ised

0.07

42<

0.00

12<

0.00

7<

0.00

20.

350.

0574

NA

<0.

0002

NA

4.41

6N

AN

A95

% U

pper

Con

fide

nce

Lim

it

Exc

ursi

onN

oN

oN

oN

oN

oY

esN

AN

oN

AN

oN

AN

A

NA

—no

t app

licab

le.

No

= c

once

ntra

tion

did

not

exce

ed 9

5 pe

rcen

t up

per

conf

iden

ce l

imit;

Yes

= c

once

ntra

tion

exce

eded

95

perc

ent

uppe

r co

nfid

ence

lim

it.

*Una

ble

to c

olle

ct s

ampl

e be

caus

e sn

ow b

lock

ed a

cces

s to

the

wel

l.

Tab

le 4

: PA

RA

ME

TE

RS

FR

OM

TA

BL

E 2

OF

IEPA

’S S

OW

IN

WA

TE

R Q

UA

LIT

Y M

ON

ITO

RIN

G W

EL

L Q

T–3

DU

RIN

G T

HE

JAN

UA

RY

12

AN

D F

EB

RU

AR

Y 1

4, 2

005,

FIL

L E

VE

NT

S

9

Tab

le 2

(SO

W)

Para

met

ers

Tot

alFe

cal

Dis

solv

edA

mm

onia

Ars

enic

Bor

onC

hlor

ide

Cop

per

Col

ifor

mIr

onL

ead

Mer

cury

Phen

ols

Sulf

ate

Solid

sN

itrog

enD

ate

(mg/

L)

(mg/

L)

(mg/

L)

(mg/

L)

(cfu

/100

mL

)(m

g/L

)(m

g/L

)(µ

g/L

)(µ

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)

1/20

/05

<0.

002

0.26

217

80.

009

<1

10.9

12<

0.00

2<

0.05

316

987

00.

411/

26/0

5W

ell c

ould

not

be

sam

pled

*2/

2/05

<0.

002

0.18

419

00.

023

<1

15.1

38<

0.00

2<

0.05

<2

187

958

0.37

2/10

/05

<0.

002

0.18

219

40.

006

<1

15.7

510.

002

<0.

057

185

378

0.90

2/17

/05

<0.

002

0.16

319

40.

010

<1

15.1

30<

0.00

2<

0.05

<2

186

972

0.64

2/25

/05

<0.

002

0.14

819

00.

009

<1

17.4

460.

006

0.09

<2

178

860

0.24

3/1/

05<

0.00

20.

181

190

0.01

1<

113

.927

0.00

9<

0.05

<2

179

924

0.27

Rev

ised

**N

A18

00.

022

NA

30.5

88<

0.01

20.

06N

A22

412

70N

A95

% U

pper

Con

fide

nce

Lim

its

Exc

ursi

on

NA

NA

Yes

Yes

NA

No

No

Yes

NA

No

No

NA

Tabl

e 4

(Con

tinue

d): P

AR

AM

ET

ER

S F

RO

M T

AB

LE

2 O

F IE

PA’S

SO

W I

N W

AT

ER

QU

AL

ITY

MO

NIT

OR

ING

WE

LL

QT

–3D

UR

ING

TH

E J

AN

UA

RY

12

AN

D F

EB

RU

AR

Y 1

4, 2

005,

FIL

L E

VE

NT

S

10

Tab

le 2

(SO

W)

Para

met

ers

Nitr

ate

Bar

ium

Cad

miu

mC

hrom

ium

Cya

nide

Fluo

ride

Man

gane

seN

icke

lSi

lver

Tem

pera

ture

Nitr

ogen

BO

D5

BO

D21

Dat

e(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)°C

(mg/

L)

(mg/

L)

(mg/

L)

1/20

/05

0.06

22<

0.00

04<

0.00

4<

0.00

30.

160.

0798

<0.

002

<0.

0008

10.4

0.01

5<

22

1/26

/05

Wel

l cou

ld n

ot b

e sa

mpl

ed*

2/2/

050.

0714

<0.

0004

<0.

004

<0.

003

0.14

0.14

010.

003

<0.

0008

12.5

<0.

005

24

2/10

/05

0.07

31<

0.00

040.

006

<0.

003

0.15

0.15

90<

0.00

2<

0.00

0812

.60.

015

<2

42/

17/0

50.

0710

<0.

0004

<0.

004

<0.

003

0.08

0.15

57<

0.00

2<

0.00

0813

.10.

046

<2

32/

25/0

50.

0741

<0.

0004

<0.

004

<0.

003

0.16

0.17

410.

002

<0.

0008

12.9

0.02

6<

23

3/1/

050.

0616

0.00

05<

0.00

4<

0.00

30.

160.

1180

<0.

002

<0.

0008

11.0

<0.

005

<2

3

Rev

ised

0.10

00<

0.00

06<

0.00

700.

002

0.38

0.17

93N

A<

0.01

96N

A0.

331

NA

NA

95%

Upp

erC

onfi

denc

eL

imit

s

Exc

ursi

on

No

No

No

No

No

No

NA

No

NA

No

NA

NA

NA

—no

t app

licab

le.

No

= c

once

ntra

tion

did

not

exce

ed 9

5 pe

rcen

t up

per

conf

iden

ce l

imit;

Yes

= c

once

ntra

tion

exce

eded

95

perc

ent

uppe

r co

nfid

ence

lim

it.

**U

nabl

e to

col

lect

sam

ple

beca

use

snow

blo

cked

acc

ess

to th

e w

ell.

**B

ackg

roun

d va

lue

was

bel

ow d

etec

tion

limit,

95

perc

ent u

pper

con

fide

nce

limit

coul

d no

t be

dete

rmin

ed.

Tab

le 5

: PA

RA

ME

TE

RS

FR

OM

TA

BL

E 2

OF

IEPA

’S S

OW

IN

WA

TE

R Q

UA

LIT

Y M

ON

ITO

RIN

G W

EL

L Q

T–4

DU

RIN

G T

HE

JAN

UA

RY

12

AN

D F

EB

RU

AR

Y 1

4, 2

005,

FIL

L E

VE

NT

S

11

Tab

le 2

(SO

W)

Para

met

ers

Tot

alFe

cal

Dis

solv

edA

mm

onia

Ars

enic

Bor

onC

hlor

ide

Cop

per

Col

ifor

mIr

onL

ead

Mer

cury

Phen

ols

Sulf

ate

Solid

sN

itrog

enD

ate

(mg/

L)

(mg/

L)

(mg/

L)

(mg/

L)

(cfu

/100

mL

)(m

g/L

)(m

g/L

)(µ

g/L

)(µ

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)

1/20

/05

<0.

002

0.42

043

70.

014

<1

18.7

48<

0.00

2<

0.05

<4

237

1402

0.43

1/26

/05

Wel

l cou

ld n

ot b

e sa

mpl

ed*

2/2/

05<

0.00

20.

445

430

0.00

7<

11.

986

<0.

002

<0.

05<

425

214

790.

472/

10/0

5<

0.00

20.

469

447

0.00

6<

12.

220

<0.

002

<0.

05<

425

314

200.

502/

17/0

5<

0.00

20.

372

466

0.00

9<

119

.352

<0.

002

<0.

05<

225

334

80.

482/

25/0

5<

0.00

20.

371

464

0.01

5<

123

.224

<0.

006

<0.

05<

223

114

340.

323/

1/05

<0.

002

0.37

946

20.

010

<1

13.6

38<

0.01

1<

0.05

<2

230

1572

0.40

Rev

ised

**N

A61

10.

073

NA

31.5

10<

0.02

4<

0.07

NA

300

1873

NA

95%

Upp

erC

onfi

denc

eL

imit

Exc

ursi

onN

AN

AN

oN

oN

AN

oN

oN

oN

AN

oN

oN

A

Tabl

e 5

(Con

tinue

d): P

AR

AM

ET

ER

S F

RO

M T

AB

LE

2 O

F IE

PA’S

SO

W I

N W

AT

ER

QU

AL

ITY

MO

NIT

OR

ING

WE

LL

QT

–4D

UR

ING

TH

E J

AN

UA

RY

12

AN

D F

EB

RU

AR

Y 1

4, 2

005,

FIL

L E

VE

NT

S

12

Tab

le 2

(SO

W)

Para

met

ers

Nitr

ate

Bar

ium

Cad

miu

mC

hrom

ium

Cya

nide

Fluo

ride

Man

gane

seN

icke

lSi

lver

Tem

pera

ture

Nitr

ogen

BO

D5

BO

D21

Dat

e(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)°C

(mg/

L)

(mg/

L)

(mg/

L)

1/20

/05

0.10

71<

0.00

04<

0.00

7<

0.00

30.

180.

1307

<0.

002

<0.

0008

12.8

<0.

005

<2

41/

26/0

5W

ell c

ould

not

be

sam

pled

*2/

2/05

0.10

27<

0.00

04<

0.00

4<

0.00

30.

160.

0414

<0.

002

<0.

0008

12.6

<0.

005

<2

22/

10/0

50.

1097

<0.

0006

<0.

004

<0.

003

0.18

0.04

08<

0.00

2<

0.00

0811

.8<

0.00

7<

22

2/17

/05

0.10

44<

0.00

04<

0.00

4<

0.00

30.

110.

1711

<0.

002

<0.

0008

11.9

<0.

013

<2

22/

25/0

50.

1086

<0.

0004

<0.

004

<0.

003

0.19

0.21

97<

0.00

2<

0.00

0812

.0<

0.02

8<

22

3/1/

050.

0629

<0.

0004

<0.

004

<0.

003

0.17

0.07

83<

0.00

2<

0.00

0812

.9<

0.00

5<

23

Rev

ised

0.15

76<

0.00

09<

0.07

4<

0.00

20.

370.

2332

NA

<0.

0043

NA

<0.

262

NA

NA

95%

Upp

erC

onfi

denc

eL

imit

Exc

ursi

onN

oN

oN

oY

esN

oN

oN

AN

oN

AN

oN

AN

A

NA

—no

t app

licab

le.

No

= c

once

ntra

tion

did

not

exce

ed 9

5 pe

rcen

t up

per

conf

iden

ce l

imit;

Yes

= c

once

ntra

tion

exce

eded

95

perc

ent

uppe

r co

nfid

ence

lim

it.

**U

nabl

e to

col

lect

sam

ple

beca

use

snow

blo

cked

acc

ess

to th

e w

ell.

**B

ackg

roun

d va

lue

was

bel

ow d

etec

tion

limit,

95

perc

ent u

pper

con

fide

nce

limit

coul

d no

t be

dete

rmin

ed.

Tabl

e 6:

PA

RA

ME

TE

RS

FR

OM

TA

BL

E 2

OF

IEPA

’S S

OW

IN

TH

OR

NT

ON

TR

AN

SIT

ION

AL

RE

SE

RV

OIR

DU

RIN

G T

HE

JAN

UA

RY

12

AN

D F

EB

RU

AR

Y 1

4, 2

005,

FIL

L E

VE

NT

S

13

Tab

le 2

(SO

W)

Para

met

ers

Tot

alFe

cal

Dis

solv

edA

mm

onia

Ars

enic

Bor

onC

hlor

ide

Cop

per

Col

ifor

mIr

onL

ead

Mer

cury

Phen

ols

Sulf

ate

Solid

sN

itrog

enD

ate

(mg/

L)

(mg/

L)

(mg/

L)

(mg/

L)

(cfu

/100

mL

)(m

g/L

)(m

g/L

)(µ

g/L

)(µ

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)

1/15

/05

<0.

002

0.07

093

0.01

434

003.

728

0.00

4<

0.05

1840

306

0.19

1/20

/05

<0.

002

0.05

882

0.01

590

3.76

90.

004

<0.

0514

4037

00.

321/

26/0

8<

0.00

40.

068

920.

020

<10

02.

632

0.00

2<

0.05

1141

389

0.53

2/3/

05R

eser

voir

cou

ld n

ot b

e sa

mpl

ed*

2/10

/05

<0.

002

0.07

295

0.02

7<

100

1.72

40.

004

<0.

0514

4231

20.

332/

15/0

5<

0.00

20.

069

101

0.01

4<

101.

549

0.00

5<

0.05

_946

366

0.46

2/23

/05

<0.

002

0.07

710

70.

012

91.

634

0.00

7<

0.05

_552

1470

0.21

3/1/

05R

eser

voir

cou

ld n

ot b

e sa

mpl

ed**

Tabl

e 6

(Con

tinue

d): P

AR

AM

ET

ER

S F

RO

M T

AB

LE

2 O

F IE

PA’S

SO

W I

N T

HO

RN

TO

N T

RA

NSI

TIO

NA

L R

ESE

RV

OIR

DU

RIN

GT

HE

JA

NU

AR

Y 1

2 A

ND

FE

BR

UA

RY

14,

200

5, F

ILL

EV

EN

TS

14

Tab

le 2

(SO

W)

Para

met

ers

Nitr

ate

Bar

ium

Cad

miu

mC

hrom

ium

Cya

nide

Fluo

ride

Man

gane

seN

icke

lSi

lver

Tem

pera

ture

Nitr

ogen

BO

D5

BO

D21

Dat

e(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)(m

g/L

)°C

(mg/

L)

(mg/

L)

(mg/

L)

1/15

/05

0.03

33<

0.00

07<

0.00

5<

0.00

30.

160.

0607

0.00

5<

0.00

335.

3<

1.00

202

071/

20/0

50.

0354

<0.

0004

<0.

005

<0.

003

0.26

0.05

310.

016

<0.

0008

5.2

<0.

970

0507

1/26

/08

0.02

90<

0.00

05<

0.00

4<

0.00

30.

190.

0313

0.00

4<

0.00

084.

1<

1.09

403

052/

3/05

Res

ervo

ir c

ould

not

be

sam

pled

*2/

10/0

50.

0254

<0.

0004

<0.

004

<0.

003

0.15

0.02

760.

004

<0.

0008

4.4

<0.

005

0407

2/15

/05

0.02

52<

0.00

04<

0.00

4<

0.00

40.

170.

0438

0.00

4<

0.00

084.

2<

1.01

818

242/

23/0

50.

0266

<0.

0005

<0.

004

<0.

003

0.18

0.04

360.

004

<0.

0008

4.2

<1.

072

0305

3/1/

05R

eser

voir

cou

ld n

ot b

e sa

mpl

ed**

**U

nabl

e to

col

lect

sam

ple

beca

use

rese

rvoi

r su

rfac

e w

as c

over

ed w

ith ic

e.**

Una

ble

to c

olle

ct s

ampl

e be

caus

e re

serv

oir

was

dry

.

Documents

RESEARCH AND DEVELOPMENT DEPARTMENT · 26, 2001, Scope of Work (SOW) for Ground-water Quality Monitoring of the Reservoir. The SOW was approved in a letter from the IEPA dated August