Exelon : Proposed Study Plan

A. Karen Hill, Esq.	Telephone [phone]
Vice President	Fax [phone]
Federal Regulatory Affairs	www.exeloncorp.com
Exelon Corporation
101 Constitution Avenue, NW
Suite 400 East
Washington, DC 20001

Via Electronic Filing

August 24, 2009

Kimberly D. Bose

Secretary

Federal Energy Regulatory Commission

888 First Street, N.E.

Washington, DC 20426

Re:	Muddy Run Pumped Storage Project, FERC Project No. 2355; Filing of Proposed Study Plan

Dear Secretary Bose:

Pursuant to the regulations of the Federal Energy Regulatory Commission (Commission or FERC), 18 C.F.R. § 5.11, Exelon Corporation on behalf of its wholly-owned subsidiary, Exelon Generation Company, LLC (Exelon) encloses for filing the Proposed Study Plan (PSP) for the relicensing of the Muddy Run Pumped Storage Project (Muddy Run Project), FERC Project No. 2355.

Exelon received study requests from six federal and state resource agencies and three nongovernmental organizations. In addition, FERC staff issued study requests. Exelon also proposed studies in Section 5 of the Muddy Run Project Pre-Application Document (PAD). On June 10-12, 2009, several agencies and interested members of the public attended FERC's scoping meetings and provided oral comments and suggestions.

In addition to the study requests, the FERC, the Pennsylvania Fish and Boat Commission (PFBC), and the Susquehanna River Basin Commission (SRBC) provided comments on the PAD and requested additional information. Exelon has addressed these additional information requests (AIRs) in Section 2.0 of the PSP and will also incorporate relevant information into their Preliminary Licensing Proposal and Final License Application.

As required under the Commission's regulations, 18 C.F.R. § 5.11(e), Exelon will hold initial consultation meetings to discuss the PSP on September 22nd, 2009 from 10:00 am to 4:00 pm and September 23rd, 2009 from 10:00 am to 4:00 pm. These meetings will be held at the Darlington Volunteer Fire Department, located at 2600 Castleton Road, Darlington, MD 21034. The purpose of this meeting is to discuss the PSP with resource agencies and interested members of the public in order to formally resolve any outstanding issues and reach a consensus on studies to be included in Exelon's Revised Study Plan, which is scheduled to be filed on or before December 22, 2009.

PROPOSED STUDY PLAN FOR MUDDY RUN PUMPED STORAGE PROJECT

Exelon looks forward to continuing to work with interested stakeholders in finalizing the study plan for the relicensing of the Muddy Run Project. In furtherance of this effort, pursuant to Section 5.12 of the Commission's regulations (18 C.F.R. § 5.12), any comments from interested parties on the PSP must be filed with the Commission by November 22nd, 2009.

Exelon is filing the PSP with the Commission electronically. To access the PSP on the Commission's website (http://www.ferc.gov), go to the "eLibrary" link, and enter the docket number, P- 2355, to access the document for the Muddy Run Project. Exelon is also making the PSP available for

download at its corporate website. To access the PSP here, navigate to http://www.exeloncorp.com/muddyrun, on the navigation pane located on the left side of the page, click on "Muddy Run Relicensing Web Site", then select the "Documents" link at the bottom of the page.

In addition to this electronic filing with the Commission, paper copies of the PSP are also available upon request to Ms. Colleen Hicks (610-765-6791). Finally, Exelon is making available to the public the PSP at the Visitor's Center at Muddy Run Recreation Park in Holtwood, Pennsylvania, and the Darlington Public Library in Darlington, Maryland, during regular business hours.

If you have any questions regarding the above, please do not hesitate to contact Colleen Hicks. Thank you for your assistance in this matter.

Respectfully submitted,

Colleen E. Hicks

Manager Regulatory and Licensing, Hydro

Exelon Power

300 Exelon Way

Kennett Square, PA 19348

Tel: [phone]

Email: [e-mail]

A. Karen Hill

Vice President Federal Regulatory Affairs

Exelon Corporation

101 Constitution Ave.

Suite 400E

Washington, DC 20001

Tel: [phone]

Email: [e-mail]

FERC No. 2355

2

August 24, 2009

PROPOSED STUDY PLAN FOR MUDDY RUN PUMPED STORAGE PROJECT

PSP Distribution List for FERC Project No. 2355

Kerry Anne Abrams	John W. Balay
City of Port Deposit	Susquehanna River Basin Commission
Mayor			Water Resources Management, Hydrologist
64 South Main Street	1721 North Front Street
Port Deposit, MD 21904	Harrisburg, PA 17102-2391
Alex Balboa		Paula Ballaron
1996 Waverly Drive	Susquehanna River Basin Commission
Bel Air, MD 21015-1100	1721 North Front Street
			Harrisburg, PA 17102-2391
Thomas W. Beauduy	Brent A. Bolea
Susquehanna River Basin Commission	Maryland Department of Natural Resources
Deputy Director		Assistant Attorney General
1721 N. Front Street	c/o Maryland Energy Administration 1
Harrisburg, PA 17102-2391	623 Forest Drive, Suite 300
			Annapolis, MD 21401
Mark Bryer		Lori Byrne
The Nature Conservancy	Maryland Department of Natural Resources
Director, Chesapeake Bay Program	Tawes State Office Building
5410 Grosvenor Lane, Suite 100	580 Taylor Avenue
Bethesda, MD 20814	Annapolis, Maryland 21401
Richard A. Cairo		Robert B. Campbell
Susquehanna River Basin Commission	Mason-Dixon Trail System
General Counsel		PA Director
1721 North Front Street	811 Marvell Drive
Harrisburg, PA 17102-2391	York, PA 17402
Ben L. Cardin		Michael Chezik
United States Senate	U.S. Department of the Interior - Office of the Secretary
Senator			Regional Environmental Officer
509 Hart Senate Office Bldg	200 Chestnut Street
Washington, D.C. 20510	Custom House, Room 244
			Philadelphia, PA 19106-2904
John M. Cincilla		Kevin Colburn
PPL Generation, LLC	American Whitewater
Manager			National Stewardship Director
2 N 9th Street		1035 Van Buren Street
Allentown, PA 18101-1139	Missoula, MT 59802
Mary Colligan		Donna Costango
National	Marine	Fisheries Service,	Northeast City of Havre de Grace
Regional Office-DOC/NOAA	711 Pennington Ave
Assistant	Regional	Administrator for	Protected Havre de Grace,, MD 21078
Resources

55 Great Republic Drive

Gloucester, MA 01930-2276

FERC No. 2355

3

August 24, 2009

PROPOSED STUDY PLAN FOR MUDDY RUN PUMPED STORAGE PROJECT

Julie Crocker				Phil Cwiek
National	Marine	Fisheries	Service,	Northeast U.S. Army Corps of Engineers, Baltimore District
Regional Office-DOC/NOAA			Attn: CENAB-OP-RMN
Protected Resources Division NMFS/NERO	P.O. Box 1715
55 Great Republic Drive			Baltimore, MD 21203-1715
Gloucester, MA 01930
Bob Dach					Joseph DaVia
U.S. Bureau of Indian Affairs Natural Resources	U.S. Army Corps of Engineers
Hydropower Program Director		P.O. Box 1715
911 NE 11th Avenue			Baltimore, MD 21203
Portland, OR 97232
Andrew Dehoff				Thomas L. Denslinger
Susquehanna River Basin Commission		Pennsylvania Department of Environmental Protection
1721 North Front Street			P.O. Box 8555
Harrisburg, PA 17102-2391			Philadelphia, PA 17105-2029
David Densmore				Michele M. DePhilip
U.S. Fish and Wildlife Service			The Nature Conservancy In Pennsylvania
Pennsylvania Field Office			Director - Freshwater Conservation
315 S. Allen St. Suite 322			2101 N Front Street
State College, PA 16801			Harrisburg, PA 17110
Peter Dunbar				Julie Gantenbein
Maryland Department of Natural Resources	Natural Heritage Institute
Tawes State Office Building			100 Pine St., Ste. 1550
580 Taylor Avenue			San Francisco, CA 94111
Annapolis, MD 21401
Elder Ghigiarelli				Ralph Goodno
Maryland Department of Environment		Lancaster County Conservancy
Wetlands	and	Waterways	Program,	Deputy 117 South West End Avenue
Administrator				Lancaster, PA 17608
1800 Washington Boulevard
Baltimore, MD 21230
Dennis T. Guise				Dan Haas
2313 Forest Hills Drive			U.S. Department of Interior
Harrisburg, PA 17112-1068			Room 260, Custom House Second and Chestnut Streets
						Philadelphia, PA 19106-2904
Jeffrey Halka				M. Brent Hare
Maryland Geological Survey			Maryland Department of Natural Resources
Acting Director				Assistant Attorney General
2300 Saint Paul Street			c/o Maryland Energy Administration
Baltimore, MD 21218-5210			1623 Forest Drive, Suite 300
						Annapolis, MD 21401
Michael R. Helfrich			Michael Hendricks
Lower Susquehanna Riverkeeper		Pennsylvania Fish and Boat Commission
324 W. Market Street			450 Robinson Lane
York, PA 17401				Bellefonte, PA 16823
	FERC No. 2355				4	August 24, 2009

PROPOSED STUDY PLAN FOR MUDDY RUN PUMPED STORAGE PROJECT

Alexander R. Hoar	Jennifer Hoffman
U.S. Fish and Wildlife Service	Susquehanna River Basin Commission
300 Westgate Center Drive	1721 North Front Street
Hadley, MA 01035-9589	Harrisburg, PA 17102-2391
Bonita C. Hoke	James Hooper
Pennsylvania Federation of Sportsmen's Clubs	Mason-Dixon Trail System
Director	President, M-DTS
2426 North 2nd Street	309 Bank Hill Road
Harrisburg, PA 17110-1104	Wrightsville, PA 17368
James Horton	Tom Horton
ConowingoLake.com	Morning News & Baltimore Sun
P.O. Box 407	Calver and Center Streets
Whiteford, MD 21160	Baltimore, MD 21203
Donovan J. Houck	Chris Iverson
Pennsylvania Department of Environmental	1200 Nursery Road
Protection	Wrightsville, PA 17368
Environmental Planner
Rachel Carson State Office Building 400 Market
Street
Harrisburg, PA 17101
Linda C. Janey	Neal M. Janey
Maryland Department of Planning	Miles and Stockbridge
Assistant Secretary for Clearinghouse and	10 Light Street
Communication	Baltimore, MD 21202-1435
301 West Preston Street Suite 1101
Baltimore, MD 21201-2305
James Kardatzke	Anne Ketchum
U.S. Department of the Interior, Bureau of Indian	Pennsylvania Department of Conservation and Natural
Affairs	Resources
545 Mariott Drive, Suite 700	Executive Assistant
Nashville, TN	P.O. Box 8767
		Harrisburg, PA 17105-8767
David S. Ladd	Edward F. Lawson
Susquehanna River Basin Commission	Weston, Patrick, Willard & Redding
1721 North Front Street	84 State Street
Harrisburg, PA 17102-2391	Boston, MA 02109-2202
James Leigey	J. Rodney Little
Pennsylvania Game Commission	Maryland Historical Trust
Bureau of Land Management	Director and SHPO
2001 Elmerton Avenue	100 Community Place
Harrisburg, PA 17106-9762	Crownsville, MD 21032
Jacqueline Ludwig	Anthony McClune
Harford County	Harford County Department of Planning and Zoning
Water & Sewer Engineering & Administration	Director
212 South Bond Street, Second Floor	County Office Building 220 South Main Street
Bel Air, MD 21014	Bel Air, MD 21014
	FERC No. 2355	5	August 24, 2009