Eclipse Associates Environmental Consulting 7 Clark Circle Pelham, NH 03076 (603) 234-5480

September 29 2008

US Environmental Protection Agency IJ \

NCCW GP Processing ,/DMunicipal Assistance Unit (CMU), I Congress Street, Suite 1100 yYo(\: Boston, MA 02114-2023

RE: Request for Renewal Coverage - Notice ofIntent NPDES General Permit for Non-Contact Cooling Water - MAG250000 Ametek Aerospace and Defense 50 Fordham Road Wilmington, Massachusetts

Enclosed please find a Notice ofIntent (NOI) requesting that the above referenced facility be covered under the Massachusetts General Permit for Non-Contact Cooling Water, MAG250000. Ametek Aerospace and Defense was originally covered for this discharge under an individual NPDES permit (MAOOOI635). Since the wastewater discharge consisted solely of non-contact cooling water, in 2002 Ametek requested coverage under the now expired General Permit for Non-Contact Cooling Water. Ametek' s NOI application was approved and they were granted coverage under the General permit (MAG250021).

Ametek has prepared the enclosed NOI with appropriate facility and contact information on the suggested NOI form contained in Appendix 5 of the General Permit.

Please note that the assessment of eligibility criteria pertaining to Endangered Species indicates that Ametek meets Criteria A/B. This response is provided based on a conversation with Damien Houlihan (September 24, 2008) of the EP A. The Ametek site is located in Middlesex County which is listed as a General LocationlHabitat for the Small Whorled Pogonia plant. However, the latest federal list of endangered and threatened species in Massachusetts limits the location within Middlesex County to the town of Groton (over 25 miles upstream of the site). Further, Mr. Houlihan indicated that since the only species listed for the county was a plant and not an animal, Criteria A may be satisfied. Although it is likely that this documentation supports the Criteria A eligibility, Criteria B was also assessed. Criteria B states that if the site has had an Endangered Species Act (ESA) review previously (e. , such as with an individual NPDES permit), that such a review would address this issue. Since the site was previously covered by an Individual NPDES permit, we believe Criteria B has also been satisfied, although we do not have record of the original ESA. Given this information Ametek could meet both A and B criteria for the ESA.

NPDES General Permit NO! - MAG250000 September 29, 2008 Page 2

A copy of this NOI is submitted to the Massachusetts Department of Environmental Protection to fulfill State reporting obligations. After discussion with Kevin Brander (978-694-3236) of the Northeast Regional offce, MA DEP form WM 11 and associated fee are no longer necessary. The most recent transmittal number of the last application for coverage under the NCCWGP is W 061339.

If you require additional information, please feel free to contact me at 603234-5480.

Sincerely,

Elizabeth J.E. Wood Project Manager

enc.

Cc: S. Environmental Protection Agency Water Technical Unit (SEW) Post Offce Box 8127 Boston, MA 02114-8127

Massachusetts DEP Division of Watershed Management 627 Main Street, 2 Floor Worcester, MA 01608

__-

APP

EN

DIX

5

Sut!

t!es

ted

Form

for

Not

ice

ofIn

tent

(N

OI)

for

the

Non

cont

act C

oolin

t! W

ater

Gen

eral

Per

mit

formatIOn. Please Drovide the followmg informatIOn about the fa

cilty

.

a) N

ame

of f

acilt

y:

Am

etek

Aer

ospa

ce &

Def

ense

T

ype

of B

usin

ess:

Man

ufac

ture

of

Mea

sure

Devices for Aircraft

Faci

lty L

ocat

ion

Add

ress

: Fa

cilty

Mai

lng

Add

ress

(if

not

loca

tion

addr

ess)

Faci

lity

SIC

50 F

ordh

am R

d co

des:

Wilm

ingt

on, M

A 0

1887

sa

me

long

itude

: 71

081

5 38

29

latit

ude:

42

33

40

Em

ail a

ddre

ssof

owne

r:A

I.Sha

fner

A

met

ek.c

omb)

Nam

e of

faci

lty o

wne

r:

Am

etek

, Inc

(pa

rent

com

pany

)

Ow

ner

s T

el #

: 97

8 98

8 45

34

Ow

ner

is (

chec

k on

e): 1

. Fed

eral

2,

Sta

te - 3,

Tri

bal

4, P

riva

te

4. O

ther

(D

escr

ibe)

Ow

ner

s Fa

x #

978

988

4533

Add

ress

of

owne

r (i

f di

ffer

ent f

rom

fac

ility

add

ress

) P

aren

t com

pany

: 37

Nor

th V

alle

y R

oad

Paol

i, PA

193

01-0

801

Lega

l nam

e of

Ope

rato

r, if

not

ow

ner:

_A

met

ek A

eros

pace

& D

efen

se

Ope

rato

r C

onta

ct N

ame:

A

I Sh

afne

r O

pera

tor

Tel

Num

ber:

_97

8 98

8 45

34

Fax

Num

ber:

97

8 98

8 45

33

Ope

rato

r s

emai

l: A

I.Sh

afne

r A

met

ek,c

om

Ope

rato

r A

ddre

ss (

if di

ffere

nt fr

om o

wne

r)

50 F

ordh

am R

d, W

ilmin

gton

, MA

d)

Atta

ch to

pogr

aphi

c m

ap in

dica

ting

the

loca

tions

of

the

faci

lity

and

the

rece

ivin

g w

ater

; all

NC

CW

dis

char

ge p

oint

s; u

pstr

eam

and

do

wns

trea

m m

onito

ring

poin

ts, M

ap a

ttach

ed?

_

e) C

heck

Yes

or

No

for

the

follo

win

g:

1. H

as a

pri

or N

PDE

S pe

rmit

been

gra

nted

for

the

disc

harg

e?

Yes

_ - No

fYes

, Per

mit

Num

ber:

MA

0001

635

& M

AG

2500

21

2. I

s th

e di

scha

rge

a " n

ew d

isch

arge

" as

def

ined

by

40 C

FR S

ectio

n 12

2,22

? Y

es

No X

3, Is

the

faci

lity

cove

red

by a

n in

divi

dual

NP

DE

S p

erm

it? Y

es- No

UY

es, P

erm

it N

umbe

r 4,

Is

ther

e a

pend

ing

appl

icat

ion

on f

ie w

ith E

PA f

or th

is d

isch

arge

? Y

es

No

_ UYes, date of submittal:

9/29/2008 Noncontact Cooling Water GP - Appendix 5: Su

gges

ted

Not

ice

ofIn

tent

For

m

2. Discharge information. Please provide information about the discharge, (attaching additional sheets as needed) a) Name of receiving water into which discharge wil occur: _Ipswich River State Water Quality Classifcation: _Class B Freshwater: _ Marine Water:

b) Describe the discharge activities for which the owner/applicant is seeking coverage: Non-contact cooling water from the cooling of flow meter test stands, and two air compressors.

c) FOR MASSACHUSETTS FACILITIES ONLY: Engineering Calculations: Submit the completed engineering calculation ofthe surface water temperature rise as shown in Attachment A ofthe General Permit. Check if attached: _

d) Number of outfalls _

For each outfall:

e) What is the maximum daily and average monthly flow of the discharge? Note that EPA wil use the flow reported here as the facilty'GPD Average Flow _11,000permitted effuent flow limit, Max Daily Flow _25,000 GPD

What is the maximum daily and average monthly temperature of the discharge (in degrees F)? Max Temp. _ Average Temp. _

g) What is the maximum and minimum monthly pH of the discharge (in s. )? Max pH _ Min pH _

h) FOR MASSACHUSETTS FACILITIES ONLY: Is the source water ofthe NCCW potable water? Yes If Yes, EPA wil calculate the Total Residual Chlorine limit for facilities located in Massachusetts.

Is the discharge continuous? Yes _ No If no, is the discharge periodic (P) (occurs regularly, i.e" monthly or seasonally, but is not continuous all year) or intermittent (I) (occurs sometimes but not regularly) or both (B) If (P), number of days or months per year of the discharge and the specific months of discharge If (I), number of days/year there is a discharge

j) Latitude and longitude of each discharge within 100 feet: outfall 1: 10ng, 71 08 04 lat,- 423340 ; outfall 2: 10ng. lat. outfall.3: 10ng, at. (See http://www.epa,gov/tri/report/sitine: tool)

k) Provide the reported or calculated seven day-ten year low flow (7QI0) ofthe receiving water _ 0465 cfs

Please attach any calculation sheets used to support stream flow and dilution calculations. See General Permit Attachment B for equations and additional information.

MASSACHUSETTS FACILITIES: See Part 3.4 and Appendix 1 ofthe General Permit for more information on ACEC. Areas of Critical Environmental Concern (ACEC): Does the discharge occur in an ACEC? Yes No _ Ifves, provide the name of the ACEC:

Noncontact Cooling Water GP - Appendix 5: Suggested Notice ofIntent Form 9/2912008

3. NCCW Source Water Information. Please provide information about the NCCW source water, usin!! separate sheets as necessary: a) Indicate source ofthe NCCW (i.e" municipal water supply, b) If source water is surface water:private well, surface water withdrawal, groundwater): i) Is it a freshwater river or stream Yes- No Source: _Municipal Water Supply ii) Is it a lake? reservoir? Name of Source Water: _Wilmington Water Dept. iii) Is it tidal river? estuary? ocean?

c) Is the source water groundwater? Yes No If yes, see Appendix 8 and Is the source registered/permitted under MA Water Management submit effuent and surface water test results, as required in Part 5.4 of the General Act or NHDES Water User Registration Rule (Env Wq 2202)? Permit, Yes X No d) Does the facilty use both a primary and backup source of noncontact cooling water?Yes If yes, registration number: _31734201 If yes, attach information that identifies and explains the primary and backup sources of

non contact cooling water for and how often the backup supply was used in last three years.

4, Best Technolo!! Available for CWIS Are you subject to BTA requirements at Part 4.2 ofthe General Permit? (Facilty' s discharge is covered by this General Permit and the facilty withdraws non contact cooling water from surface source water). Yes- No If No, explain: Not from Surface Water

If YES, attach the facilty-specific BTA description as required in Part 4.3 of the General Permit, For additional information and guidance, see Questions 13­http://wwvv.epa.gov/regionl/npdes/nccwgp.html. Provide a map showing the location of each CWIS intake structure;23 ofthe NCCW Fact Sheet, posted at

NCCW outfall(s) and any CWIS feature referred to in the BTA description.

Include in your description: Measures to meet the General Permit Part 4. a general BTA requirements, including documentation that describes the facilty' s monitoring program for impinged fish and/or invertebrate; or the required alternative monitoring plan frequency and/or protocol A characterization of the source water body s aquatic life habitat in the vicinity of each CWIS during the seasons when the CWIS may be in use The attributes of the current CWIS Design measures ofthe CWIS Operation measures of the CWIS Historical occurrence of impinged fish for the past five years If applicable, a demonstration that the facilty' s intake rate is commensurate with a closed-cycle recirculation system Other components to reduce impingement and/or entrainment of aquatic life

9/29/2008 Noncontact Cooling Water GP - Appendix 5: Suggested Notice ofIntent Form

4, BTA FOR CWIS CONTINUED:

Provide the following information for each CWIS to support your attached facilty-specific BTA description.Design capacity of the ofthe CWIS MGD Maximum monthly average intake ofthe CWIS during the previous five years MGD Month in which this flow occurred Maximum through-screen design intake velocity feet/second (fps)

For facilties where the CWIS is located on a freshwater river or stream, provide the following information: The source water s annual mean flow cubic feet/second (cfs) as available from USGS or other appropriate source The design intake flow as a % of the source water s annual mean flow Attach calculations if equal to or less than 5% of annual mean flow, The source water s 7Q10 _cfs. See Attachment B ofthe General Permit for more information on 7Q10 determinations. The desie:n intake flow as a percent ofthe source water s 7Q10

5. Contaminant Information If applicable, attach a listing of all non-toxic pH neutralization and/or dechlorination chemicals used, including chemical name and manufacturer; maximum and average daily quantity used as well as the maximum and average daily expected concentrations (mg/) in the NCCW discharge, and the vendor s reported aquatic toxicity (NOAEL and/or LC in percent for aquatic organism(s)). No Chemicals Used

6, Determination of Endangered Species Act Eligibilty: Provide documentation ofESA eligibilty as required at Part 3.4 and Appendix 2, Part C, Step 4, of the General Permit. In addition, respond to the followinl! Questions,

a) Are any listed threatened or endangered species, or designated critical habitat, in proximity to the discharge? Yes b) Has any consultation with the federal services been completed? Yes - No Presumed to have occurred upon issuance ofIndividual NPDES permit q) Is consultation underway? Yes No _ d) What were the results ofthe consultation with the U,S. Fish and Wildlife Service and/or NOAA Fisheries Service (check one): Unknown

a "no jeopardy" opinion _or written concurrence on a finding that the discharges are not likely to adversely affect any endangered species or e) Which of the five eligibilty criteria listed in Appendix 2, Section B (A, D or E) have you met? _A / B

1) Attach a copy ofthe most current federal listing of endangered and threatened species from the USF&W web site listed in Appendices 2, 2, 1 and 4

7, Documentation of National Historic Preservation Act reQuirements: Please respond to the followin questions: a) Are any historic properties listed or eligible for listing on the National Register of Historic Places located on the facilty site or in proximity to the discharge? Yes No _ b) Have any State or Tribal historic preservation officers been consulted in this determination? Yes or No _ If yes, attach the results of the consultation(s).

c) Which ofthe three National Historic Preservation Act requirements listed in Appendix 3, Section C (1,2 03) have you met? _

9/29/2008 Noncontact Cooling Water GP - Appendix 5: Suggested Notice of Intent Fonn

?& / ./

8. Supplemental Information: Please provide any supplemental information. Attach any analytical data used to support the application, Attach any certification(s) required by the general permit

9. Signature Requirements: The Notice of Intent must be signed by the operator in accordance with the signatory requirements of 40 CFR Section 122. (see below) including the following certification:

I certify under penalty of law that (1) no biocides or other chemical additives except for those used for pH adjustment and/or dechlorination are used in the noncontact cooling water (NCCW) system; (2) the discharge consists solely of NCCW (to reduce temperature) and authorized pH adjustment and/or dechlorination chemicals; (3) the discharge does not come in contact with any raw materials intermediate product, water product (other than heat) or finished product; (4) if the discharge of noncontact cooling water subsequently mixes with other wastewater (Le.stormwater) prior to discharging to the receiving water, any monitoring provided under this permit wil be only for noncontact cooling water; (5) where applicable, the facility has complied with the requirements of this permit specific to the Endangered Species Act and National Historic Preservation Act; and (6) this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted.

Based on my inquiry of the person or persons who manage the system , or those persons directly responsible for gathering the information I certify that the information submitted is , to the best of my knowledge and belief, true, accurate, and complete. I certify that I am aware that there are significant penalties for submitting false information , including the possibilty of fine and imprisonment for knowing

violations.

Facility Name: rospac

Ope..'., ,;gotu..,

Title: SVr' Date: 9/:1&/O

Federal regulations require this application to be signed as follows: 1. For a corporation , by a principal executive officer of at least the level of vice president; 2. For a partnership or sole proprietorship, by a general partner or the proprietor, respectively, or 3. For a municipality, State, Federal or other public facilty, by either a principal executive officer or ranking elected official.

9/29/2008 Noncontact Cooling Water GP - Appendix 5: Suggested Notice ofIntent Form

1000 ft

approximate scale

TIT

LE

: E

clipse Associates

LOCUS PLAN

vironmental

Consulting

Phone: (603) 234-5480

Ametek Aerospace

, Wilm

ington , MA

Fax: (603) 635-8817

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ENGINEERING CALCULATIONS AMETEK AEROSPACE AND DEFENSE

NON-CONTACT COOLING WATER GENERAL PERMIT MAG25000

Per NCCWGPD, Attachment A, Example Engineering Calculations:

Maximum Change in Temperature at Discharge Location to River (Class B, warm water fishery): = mplmr *

Note: Discharge is via a 400+ foot underground pipe , prior to entering a wetland that leads to the tributary to Ipswich River. Temperature is adjusted significantly during this conveyance.

Temperature and pH readings taken at an upstream location and a location immediately downgradient of the outfall showed no impact from discharge (both readings were the same pH and temperature).

where: = change in river temperature, degrees F

000 = mass of effuent in million gallons per day

000 = mass of river in million gallons per d y (use worst case 7Q10 - below)

= change in temperature, effuent - influent to river, degrees F (maximum discharge temperature anticipated due to site characteristics)

7Q10 = = seven day, ten year low flow per http://www/epa.gov/region1/npdes/nccwp. html(see attached copy)

03 mgd = 30000 gpd Permit allows for a change of less than 5 degrees in Class B warm water fisheries

calculated as: = m r *

= 4, degrees F (worst case potential change in temperature)

Page 1 of 9/29/2008

NP

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Arm

y Soldier S

ystems C

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Natick

AmetekAerospace& Power

Instruments , W

ilmington

Atlantic F

rost Seafoods

Fall River

Baker C

omm

odities N

orth Billerica

Boott C

otton Mills M

useum

Low

ell

Boott H

ydopower , Inc.

Eldred F. Field H

ydroelectric Project L

owell

Boort H

ydropoWer , Inc:.

Ham

ilton Pow

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Low

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Boott H

ydropower , Inc.

John Street P

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tation L

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Com

munications &

Pow

er Industries ­B

everly Microw

ave Division

Beverly

Concrete B

lock Insulating System

s , Inc. W

est Brookfield

Crane & Co.

, Byron W

eston Mill

Dalton

Crane &

Co. , P

ioneer Mill

Dalton

Donc:asters, Inc. - Storm

s Forge D

ivision, Springfield

Double-A

- Plastics C

o. M

onson

MA

G250035

MA

G250021

MA

G250036

MA

G250026

MA

G250732

MA

G250163

MA

G250949

MA

G250950

MA

G250520

MA

G250t21

MA

G250956

MA

G250955

MA

G250947

MA

G250027

South P

ond of Lake Cochituate

(SuAsC

o)

Tribto Ipswich River

Mount H

ope Bay

Concord R

iver

Eastern C

anal to Merrim

ack R

iver

Merrim

ack River

Ham

iltonCani31 to M

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.

Merrim

ack River

Unnam

ed Trib to B

ass River

(North C

oastal)

Wetlands leading to Q

uaboag River (Chicopee)

Housatonic R

iver

Housatonic R

iver

Poor B

rook to Chicopee R

iver

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Lake

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FEDERALLY LISTED ENDANGERED AND THREATENED SPECIES

' ,

IN MASSACHUSETTS

COUNTY SPECIES FEDERAL GENERAL LOCATIONIHABITAT TOWNS STATnS

Tht aten COa.stal Beaches All TownsBarstable P.ibing Plover Roseate Tern Endah! eted Coastal beaches and the Atlantic OCean All Towns

Coastal Beaches ChathamNotth astern beach Threatened tig r b tle

Sandwich and Falmouth.Sandblaingerardia Endangered Open areas with sandv soils.

Northern Red-belled Endangered Inland Ponds and Rivers Bourne (nort of the Cape Cqd Canal)

cooter Egremont and SheffeldBerkshire Bog Turtle Threatened Wetlands

Piping Plover Threatened Coastal Beaches Faithaven, pacmouth; WeStportBristOL

Roseate Tern Endangered Coastal beaches and the Atlantic Ocean Fairhaven NeWB dford Darmouth, Westport

Nortern R bemed Endangered Inland Ponds and Rivers Raynham and Taunton

coOter

Ros ate Tern Endangered Coastal beaches and the Atlantic Ocean All TownsDUkes All TownsPiping Plqver Threatened Coastal Beaches

Threatened C oasta!Beaches Aquinnah .and ChiIrnarkNorteastern beach tiger beetle

West TisburvSandplain Rerardia Endanl!ered Open with sandy soils.

Essex Sman whorled Threatened Forests with somewhat poorly drained soils Gloucester Essex and Manchester

Pogonia andlor a seasonallvhigh water table Piping Plover Threaten Coastal Beaches Glocester, Essex, Jpswich, Rowley, Revere,

Newbury, Newburvoort and SaJisbuf.

Wetlands MontagueFranklin Norteast bul!"sh Endangered Dwarfwedgemussel Mil River Whatelv

Hampshire Small whorled Threatened Forests with somewhat poorly drained soils Hadley

I'Ogonia andlor a seasonallv hil! water table

PuritanJiger beetle Threatened Sandy beaches along the Connecticut River NorthamhtOn.and Hadley

DWarf w dgemussel Endangered Rivers and Streams. Hadlev, Hatfield. Amherst and Nortl1anmton

Threatened Forests with somewhat poorly drained soils SouthwickHampden Small whorled Pogonia andlor aseasonallv high water table

Small whorled Threatened Forests with somewhat poorly draihcdsoils GrotonMiddlesex PQP;onia and/or as asQI1nv hi!:h water table

Nantucket Pipillg plover att Tern

American burying

Thr atened Endangered Endangered

Coastal Beaches Coastal beaches and the Atlantic Ocean

lJpJand gr!isy meadows

Nantucket Nantucket Nantucket

beetle

Plymouth Piping Plover Threatened Coastal Beaches $cituate, Marshficld Duxbury, Plymouth Wareham and Mattapoisett

Northern Red,belled cooter

Endangered Inland ponds and Rivers Kingston Middleborough, Carver Plymouth Boume, and Wareham

Roseate Tern Endangered Coastal beaches andtheAtJantic Oeean Plymouth, Marion, Wareham, and Mattahoisett.

Suffolk Piping Plov Threatened Coastal Beaches Winthrop

Worcester Small whorled Threatened Forests with somewhat poorly drained soils Leorninster

pogonia andlor a seasonally hi gh water table

Eastern cougar andgr;iY wplfare cpnsideredextirpated in Massachusetts.

Endangeredgray wolves are not known to be present in Massachusetts, but dispersing

ii"dividualsftomsource populatiollSitl Canada may occur stateWide,

Critical habitat for the Northern Red-bellied cooter is present in Plymouth County. 7/311008

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Historic Places

National

Register of

24-Sep-Index by S

tate and City report

Com

plete List for the Tow

n of Wilm

ington:

STA

TE

C

OU

NT

Y

RE

SO

UR

CE

NA

ME

A

DD

RE

SS C

ITY

L

ISTE

D

MU

LT

IPLE

MiddlesSx

Boutell--H

athorn House

280 Wobun St.

Wilm

ington 10/27/2004

216 Wildw

ood Sf. F

irst Period B

uildings ofM

iddlesex B

uck' s Corner H

istoric District 580 584 588 590 602 603 604

Wilm

ington 11/21/2003 E

a$tern Massachusetts T

R

WO

burn S1. First Period B

uildings ofM

iddlesex B

uck, E

phraim, H

ouse 216 W

ildwood Sf.

Wilm

ington 3/9/1990 E

astern Massachu$S

tts TR

72-150 and 117- 135 C

hurch St. , 4M

iddlesex C

hurch Street H

istoric District

Wilm

ington 11/21/2003

Central S1.

Gow

ing--Sheldon H

i. storicM

iddlSsex 642 and 643 W

oburn St.

Wilm

ington 11/21/2003

District

Middlesex

Harnden T

avern 430 S

alem S

f. W

ilmingtO

n 4/8/1975

Even nos. 8- 72 H

igh Sf. except 20A

M

iddlesex H

igh Street H

istoric Di$trict

and 20R, plus nos. 31 ,

47, .57 and

Wilm

ington 11/21/2003

67. Running SE between towns of

Middlesex

Middlesex C

anal W

ilmington

8/21/1972Low

ell and Woburn

Middlesex

West S

choolhoLise S

hawsheen A

ve. at Aldrich R

d. W

ilmington

2/21/1990

Roughly, Middlesex Dr. and Church

Wilm

ington Csntre V

illageM

iddlesex S

t. from A

dams S

f. to WildW

oOd

Wilm

ingtoll 4/8/1992

Historic D

istrict C

emetery

A It

Ct. km-

notJHJ.)C

. p 01 lA

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PC\kL

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page 1 of 1

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