CENTRAL MAINE 

POWER 

SDMS DocID 552567 

Superfund Records Center 

SITE: O'Connzr^ 

April 6, 2012 BREAK: ^ 3 

OTHER: SS^Sb7 

Mr. Terrence Connelly 

Office of Site Remediation and Restoration 

U.S. Environmental Protection Agency 

5 Post Office Square, Suite 100 ; • • 

Mail Code OSRR07-1 

Boston, MA 02109-3912 

RE: O'CONNOR COMPANY SUPERFUND SITE 

INSPECTION REPORT - March 2012 

Dear Mr. Connelly: 

Enclosed is a copy of the inspection of the O'Connor Company Superfund Site carried out on March 27, 

2012. This inspection was conducted in accordance with the Operations and Maintenance Plan dated 

October 2009. 

The site is in very good condition. The cover vegetation is thick and healthy. The vegetation in the 

Designated Area was not yet at height which allowed a good observation of the site. No signs of erosion 

were noted on the slopes or drainage ditches. One possible burrow area was noted near Pt D, this area 

will be repaired during the spring sampling event in April. There was also some evidence of beaver , 

activity near Riggs Brook, but no evidence of a dam or lodge. 

If you have any questions on this inspection, please contact me. '; 

Sincerely, 

Roy A. Koster, P.E. 

Project Coordinator 

Enclosures 

cc: Claudia Sait, MDEP 

83 Edison Drive, Augusta, ME 04336 

Telephone 207.623.3521 

USA 

An equal opportunity employer 
"err 

O'Connor Inspection Checklist 

inspector: TTanf-l-W r ]T7YV^ TW^f c Date: 3>-^l - \3 L 

father : ^ tAfl ^ •.cn" 1 Time: /Q ^r, ^ 

Well 

MW 104B 

— MW106A 

~_ MW-106B 

MW-501 

MW 502 

- MW 503 

MW 507A 

MW 508B 

- OW201B 

OW 202B 

OW-302B 

RW 101 

MONITORING/OBSERVATION WELLS 

Locks 

y 

y 

y 

Well Casing 

Condition*" Erosion 

y^ 

y 

y 

y 

y 

y 

v 

y 

y 

y 

y 

y 

v V 

y 

follow Up Action Required: M*,ie _ 

(V) O 

Mo 

KL 

Comments 

iL 

No 

J L 

Cents* C-rac1 

•03/26/2Q43-
Designated Area 

Boundary Markers: 

PTA' 

PTB 

PTC 

PTD 

PTE 

PTF 

PTG 

P-TH 

PTI 

PTJ 

Condition 

~y T

4

" 

Follow Up Action Required: f^ood; 

r <=y>o<d _ -

Comments: 

Surface Soils 

CONDITION 

Excessive Settlement:--PondlngErosion Rills 

Vegetation - Stressed or SparseAnimal Burrows 

Tree and Shrub Encroachment on 

Designated Area 

LOCATION (MARK ON ATTACHED MAP) 

•Q^it-ecf severed 1 

-03^26/2012-
Access Road: 

r Feature 

-Excessive RuttingErosion, Sloughing of Shoulders 

Other 

Follow Up Action Required: 

Condition- Comments: 

CULVERTS AND SURFACE DRAINAGE 

r Location* Condition- ~ Comments 

Upland Marsh Culvert - Primary 

Upland Marsh Culvert - Overflow 

Upper-Lagoon Culvert Outlet 

:Swale U pper to Lower Lagoon 

?bower*Lagoon.-Culvert:Qutlet 

Drainage Lower Lagoon:to RiggsBrook 

Follow Up Actions Required: Kl OA£ > 

UPLAND MARSH AND LAGOONS 

Location--' > -Featured: Condition^ Comments: 

LUpland-MarshSidejSlopes 

Vegetation 

Upper Lagoon Side SlopesVegetation: 

Lower Lagoon 

Side Slopes 

Vegetation: 

Follow Up Actions Required: f\J 6nj2__ 

-03/26/2012-
OTHER OBSERVATIONS/RECOMMENDED ACTIONS 

•fcHECK HERE IF ADDITIONAL INFORMATION IS ATTACHED pK^oS 

Inspector's Signature U,juol '^AASA Date: 3>[an \ \ZL 
1

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LEGEND 

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O'Connor Site 

March 2012 

Photo 1 - Site Entrance 

Photo 2 - Upland Marsh 
O'Connor Site 

March 2012 

Photo 4 - Lower Lagoon 
O'Connor Site 

March 2012 

Photo 6 - Slope East of TWA II 
O'Connor Site 

March 2012