Centra l Main e Powe r May 4 , 201 0

Mr . Terrenc e Connell y Offic e o f Sit e Remediatio n an

dRestoratio n U.S . Environmenta

l Protectio n Agenc y 5 Pos t Offic e Square , Suit

e 10 0 Mai l Cod e OSRR07- 1 Boston , M A 02109-391 2 RE : O'CONNO RCOMPAN Y SUPERFUN D SIT E INSPECTIO N REPOR

T - Apri l 201 0 Dea r Mr . Connelly : Superfund Records Center SITE: <J'

(<Dov\yr BREAK : ^ 3 ... . OTHER : J6 V

Enclosedi s acopy o f

the inspectio n o f

the O'Connor

Compan y Superfun dSit

e carrie dou

t o n Apri l 20 , 2010 . Thi s inspectio n wa s conductedi n accordance wit h th e draf t Operation s andMaintenanc e Pla n date dJun e 2008 . The sit e remain s i n goo dconditio n wit h awel l establishedvegetative cove r an dstable slopes . The sewe r lin e constructio n alon g Rout e 1 7 ha s bee n restoredan

dth e re-seede

d area s sho w agoo dcrop o f

grass . A s aresult

o f the sewe r constructio n th

e pave dacces s point

use d t o brin g equipmen

t t o MW-106 A an

dB wa s excavate

dbut no t replaced . The beave

r activit y observe

di n the uplan dmars

h appear s t o hav e cease d wit h the beaver

s possibl y relocating . Som

e evidenc e o f

beaver-cu

t tree s wa s observe dnea r Rigg s Brook , but

thi s activity di dnot adversel y affec t the Site . Severa l o f th e wel l lock s hav

e becom e difficul t

to unloc k

du e to rus t an dwil l be replaced . I f yo u hav e an y question s o n thi s inspection , pleas e contac t me .

Ro V A . Koster , P.E . Projec t Coordinator Enclosure s cc : Claudi aSait , MDE P

A n equa l opportunit y employe r 8 3 Ediso n Driv e I Augusta , M E 0433 6 te l (207 ) 623-352 1 I fa x (207 ) 626-957 1 www.cmpco.co m A n Energ y Eas t Compan y

## O'Conno r Inspectio n Checklis t

Inspector:

3cipe-T-

~XXf-^r

Date:

® < 4~dJD-'3®\0 Weather : C-War . (rf f Time : iQvQOnLn ^



## MONITORING/OBSERVATIO N WELL S Wel l Lock s Wel l Casin g Conditio n Erosio n Comment s M W 104 B 

# N o 600 J 

# A ) Qep\ar€>. \oCV_ MW106 A 

## ijo . M W 106 B M W 50 1 

# 4 flood 

# A i M W 50 2 

# V 

# A k M W 50 3 

# 4 M W 507 A 

# 4 M W 508 B 

# A k O W 201 B O W 202 B 

# Goo

d 

# A k O W 302 B 

# €

5 

# A i RW10 1 

# es 

# JL Follow Up Action Required:

5 ^ CQwvimej^S

04/23/201 0

## Designate d Are a Boundary Marker s Conditio n Comment s PT A PT B PT C PT D PT E PT F PT G 

## flood PT H PT I PTJ Follo wU p Actio n Required : ^



## Surfac e Soil s

CONDITIO N LOCATIO N (MAR KO N ATTACHE D MAP ) Excessiv e Settlemen t - Pondin g Erosio n Rill s 

# |N)orv e Vegetatio n - Stresse d o rSpars e Anima l Burrow s Tre e an d Shru b Encroachmen t o n Designate d Are a 

# AJo/U L

## Acces s Roa d Featur e Conditio n Comment s



# 3 Excessiv e Ruttin g Erosion , Sloughin g o f Shoulder s Othe r Follo w U p Actio n Required : 

## /0oAJ2 _



# CULVERT S AN

D SURFAC

E DRAINAG

E Locatio n Conditio n Comment s Uplan d Mars h Culvert - Primary Uplan d Mars h Culvert - Overflo w Uppe rLagoo n Culvert Outle t Swal e Uppe rt o Lowe rLagoo n Lowe rLagoo n Culvert Outle t Drainag e Lowe rLagoo n t o Rigg s Broo k Good ISbrw

<,<vNodl

QjO^r Follo w U p Action s Required :



## UPLAN D MARS H AN D LAGOON S Locatio n Featur e Conditio n Comment s Uplan d Mars h Sid e Slope s

Vegetatio n 

## Goo q Uppe rLagoo n Sid e Slope s

Vegetatio n 

## Good

Good Lowe rLagoo n Sid e Slope s

Vegetatio n Follo w U p Action s Required : j\) Q p ^ \f \ sli d nd- y louae/ - l(U\oo n dLrafngg e d o feiyS vtV~tp £ •

04/23/201 0

## OTHE R OBSERVATIONS/RECOMMENDE D ACTION S

/Oak. : Pow^

J dir^tXto^ j acces s d o /vwJ-toGtA rv ~

Q^CHEC KHER E I F ADDITIONA L INFORMATIO N I S ATTACHE D ~ Pho^o S Inspector' s Signatur

e (\)UMJ : £W A 

### Date : 0 T

### j^Q / / O

04/23/201 0O'Conno rSit e Apri l 201 0O'Conno rSit e Apri l 201 0O'Conno rSit e Apri l 201 0

Phot o 6 - Restoratio n o f Sewe rInstallatio n nea rRigg s Broo k