Central Maine Power 

September 14, 2009 

SDMS DocID 552563 

Mr. Terrence Connelly 

Office of Site Remediation and Restoration 

U.S. Environmental Protection Agency 

1 Congress Street, Suite 1100 (HBT) 

Boston, MA 02114-2023 

RE: O'CONNOR COMPANY SUPERFUND SITE 

INSPECTION REPORT - September 2009 

Dear Mr. Connelly: 

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

3, 2009. This inspection was conducted in accordance with the draft Operations and Maintenance Plan 

dated June 2008. 

In general the site was found to be in good condition. The vegetation is well established and the site is 

stable. Recent sewer line construction along Route 17 had caused some disturbance of the site near 

Route 17, including some rutting caused by the contractor's equipment. Some of this rutting was near 

the edge of the Designated Area, between points A and B, but the soil disturbance within the Designated 

Area was not observed to have adversely affected the 12-inch soil cover. The site has been restored and 

seeded by the contractor and CMP will continue to monitor the recovery of the cover crop. Designated 

Area marker post A was damaged during the construction and was replaced by CMP. 

Beaver activity continues in the upland marsh but is not having an adverse impact on the protected area 

of the site. 

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

Sincerely, 

Roy A. Koster, P.E. 

Project Coordinator 

Enclosures 

cc: Claudia Sait, MDEP 

An equal opportunity employer 

83 Edison Drive I Augusta, ME 04336 

tel (207) 623-3521 I fax (207) 626-9571 

Superfund Records Center 

SITE: 0' fo/ipfly 

BREAK: M 

OTHER: SS 2.St>3 

www.cmpco.co m 

An Energy East Company 
Inspector: 

Weather: 

O'Connor Inspection Checklist 

0\ear ' 

Date: 

Time: 9 '^o - //.nnar^ 

MONITORING/OBSERVATION WELLS 

Well Locks Condition 

Well Casing 

Erosion 

Comments 

MW 104B 

MW 106A 

MW 106B 

MW 501 

MW 502 Good 

MW 503 y 

MW 507A (ocod 

MW 508B (3ccd 

OW201B JO 0 6nod 

OW 202B 

OW 302B 

RW 101 Good 

Follow Up Action Required: 

09/14/2009 
Designated Area 

Boundary Markers 

PTA 

PTB 

PTC 

PTD 

PTE 

PTF 

PTG 

PTH 

PTI 

PTJ 

Condition Comments 

Follow Up Action Required: Cf\zs\& r rV 1^0 ^ ck^fYl< 

^rlve KeenV ^euoer ^o^cic CIGYVJ*. L^ J 

JS- W . -or-v- needs ~Vo ^to^cjibl , 

Surface Soils 

CONDITION LOCATION (MARK ON ATTACHED MAP) 

Excessive Settlement - Ponding 

Erosion Rills 

fM- €nTXbun(Leio5rT€^abnQ^i-l7 

^^rou))U)MV Q^odcK-fry 5 J 

Vegetation - Stressed or Sparse 

Animal Burrows 

Tree and Shrub Encroachment on 

Designated Area 

<3rcu3W^ osoor\6. OTWcVSiA 6> 

U^GLS Lo€ed -LOrjcKed c i O r ,VVJK 

ICooriH-itVi ~^rrhjd good. 

09/14/2009 
Access Road 

Feature Condition Comments 

Excessive Rutting 

Erosion, Sloughing of Shoulders 

Other 

Follow Up Action Required: 

CULVERTS AND SURFACE DRAINAGE 

Location Condition 

332 

Comments 

Upland Marsh Culvert - Primary 

Upland Marsh Culvert - Overflow r 

Upper Lagoon Culvert Outlet (QOQC I 

Swale Upper to Lower Lagoon 

Lower Lagoon Culvert Outlet 

Drainage Lower Lagoon to Riggs Brook 

Follow Up Actions Required: 

UPLAND MARSH AND LAGOONS 

Location Feature Condition Comments 

Upland Marsh Good Side Slopes 

Vegetation 

Upper Lagoon 

Side Slopes 

Vegetation 

Lower Lagoon 

Side Slopes 

Vegetation 

Follow Up Actions Required: ^ y\^2 _ 

09/14/2009 
OTHER OBSERVATIONS/RECOMMENDED ACTIONS 

Q'CHECK HERE IF ADDITIONAL INFORMATION IS ATTACHED pV^>VD S 

Inspector's Signature ygsUOj-f^UlA Date: QfrS^ 

O'Connor Site 

April 2009 

Photo 1 - Site Entrance 

Photo 2 - Upland Marsh 
O'Connor Site 

April 2009 

Photo 4 - Lower Lagoon 
O'Connor Site 

April 2009 

Photo 6 - Restoration of Sewer Installation near Riggs Brook