Potomac Basin

Vol. 57, No. 5 Interstate Commission on the Basin Sept./Oct. 2001

Lt. R. E. Bowman, USCG The U.S. Coast Guard Cutter Albacore and a patrol boat near Fort McNair on the Washington waterfront.

Potomac in Washington Closed to Traffic After Attack

ours after the September 11 attack Harbor Branch, which also is patrolling the H on the World Trade Center and the area. Pentagon, The Potomac River in The river was reopened, with restrictions, Washington, D.C., was closed by the U.S. on September 16. Movement within the Coast Guard. Movement of vessels on the security zone was allowed from 5:30 a.m. to river from the Woodrow Wilson Bridge to 7 p.m., with all vessels subject to boarding the Francis Scott Key Bridge in Georgetown, and inspection. Representatives of the and on the Anacostia River from its mouth Coast Guard and the police noted that to the U.S. Route 50 Bridge was halted. A boaters were generally happy with the Coast Guard cutter was quickly dispatched operation, with few complaints about the to Washington to secure the river. inspections. “People have been nice, and For the next six days, vessels within understand the importance of the job we the security zone were allowed to move are doing,” noted Coast Guard Lt. Russ only with prior approval of the Coast Bowman. Guard, and then only to leave the area On September 25, the Coast Guard lifted permanently. The normally busy river was the Potomac security zone, but noted that eerily quiet, as the capital’s many touring they would continue with an increased passenger vessels and pleasure boats presence in the area. Naval Protection remained tied to docks. Compliance of Zones were established, which require boat both commercial and pleasure vessels traffic to operate at minimum speed within with the closure has been very high, 500 yards of a Navy vessel, and to keep at according to the Coast Guard and the least 100 yards away from those vessels District’s Metropolitan Police Department unless directed to do otherwise by an

93500.pmd 1 10/31/2001, 8:55 AM official patrol. This rule currently remains in effect. People may notice that various Coast Our mission is to Guard cutters may be present or absent in enhance, protect and the area because Coast Guard assets are shuttled in and out of the metropolitan conserve the water Potomac. “We retain a strong presence on and associated land the river,” Bowman said. The Metropolitan Police Department Harbor Branch also is resources of the continuing with increased presence on the water, and have assisted in inspections. Potomac River and its Other federal police agencies in the area tributaries through are working together to keep the area secure. regional and interstate Additionally, the District of the U.S. Army Corps of Engineers has cooperation. authorized the temporary establishment of restricted areas in and around all military assets adjacent to the navigable waters in the region (, central Pennsylvania, ICPRB and the District of Columbia). The restricted COMMISSIONERS areas extend 100 meters into navigable waterways, including the Potomac. No vessels or persons may enter these areas. DISTRICT OF COLUMBIA: Theodore J. An exception is the Quantico Marine Base Gordon, Hamid Karimi, Alternate; Philip on the tidal Potomac, which has established W. Ogilvie*, James H. Hannaham, a 500-meter restricted area. Alternate; Lloyd Preslar, Anne D. The regulations do not apply to Snodgrass, Alternate. commercial or recreational traffic within designated channels or fairways. MARYLAND: James H. Gilford*, Minny Commercial fishing activities are allowed to Pohlmann, Alternate; Gov. Parris N. continue in designated areas after positive Glendening, Robert M. Summers, identification has been established. The Alternate; George H. Shoemaker, John regulations are in effect during declared Parran Bowling, Alternate. threat conditions. If the prohibited zones seem to be PENNSYLVANIA: Irene B. Brooks*, getting complex, Lt. Bowman recommends John C. Booser, Alternate; William I. that boaters simply “obey directions given Plank, Roger C. Steele, Alternate. by Coast Guard or police vessels.” The Coast Guard, for obvious reasons, is : Gloria Taylor Fisher*, Warren not sharing information about its strength on D. Fairchild, Alternate; Del. Robert G. the river, including the numbers and types Marshall, Del. Marian Van Landingham, of boats present. In fact, the numbers on the Alternate; Dennis H. Treacy, Michael D. hulls of some boats have been painted over Clower, Alternate. to discourage their identification. The maintenance of security on the river, while WEST VIRGINIA: Michael O. Callaghan, not a new role, has in the past been aimed William D. Brannon, Alternate; Del. more at promoting public safety on the Harold K. Michael, Larry Smith, water, rather than patrolling to prevent harm. Alternate; F. Scott Rotruck*, Phyllis M. “This is a different stance for us,” Bowman Cole, Alternate. said. “We normally aren’t trying to limit public knowledge of our activities. Usually : Jean R. Packard,* we are trying to get the word out about our Stella Koch, Alternate; Daniel J. Weiss; mission.” Yeni Wong The closure of the river created hardship for several companies that run boat tours on *Executive Committee Member the Potomac in and around Washington. The Potomac Riverboat Company, like The ICPRB Officers: others in the area, was shut down for a time James H. Gilford, Chairman after the attack, in what is traditionally the Irene B. Brooks, Vice Chairman busiest time of the year. Even after Joseph K. Hoffman, Executive Director restrictions on boat travel were loosened, Robert L. Bolle, General Counsel the closure of Reagan National Airport and the absence of tourism hurt business for some of those who rely on the river for Commissioners and their alternates are customers. appointed by the state’s governors, the Potomac Riverboat Company owner mayor of the District of Columbia, and the Willem Polak noted that his business President of the United States. remains a shadow of the norm. His boats,

93500.pmd 2 11/2/2001, 12:33 PM ported in Alexandria, Va., quit taking trips to District of Columbia, and bookings for future Mount Vernon due to the boarding and trips remain very low. “We would typically searches required when a boat leaves the be sold out for Christmas parties,” he said, metropolitan area. “I couldn’t keep on a “but our bookings are down by more than schedule,” Polack said. He described the 50 percent.” Coast Guard personnel on the water as Other types of river related businesses very polite, and is working with the agency have been more fortunate. Ken Penrod, to try and streamline the process, perhaps who runs Life Outdoors Unlimited, a fishing through searches at the dock rather than on and hunting guide company that the water. The company has been reduced specializes in the metropolitan Potomac, to running weekend trips entirely in the shut down his operations for the week after

Maintaining a Focus

Joseph K. Hoffman, Executive Director

The tragic events of September 11 are protect their pipes, including locking fresh in our minds, and our hearts reach doors, setting up surveillance cameras, out to so many with feelings of sympathy and installing alarms to assure the and gratitude. Yet, we must continue with integrity of the distribution systems. our lives and pursuits, changed as they As noted above, we must carry on with may be. The attacks and subsequent our lives, including the enjoyment of our events have resulted in some reassessments leisure hours on this marvelous Potomac. of what governments will be able to fund We must continue to seek improvements and how to carry out the business of in the water and related land resources governing. This includes aspects of water this basin offers to us all. The challenge resources. As noted in the lead article of can be met even in a period when our this Reporter, the Potomac is certainly part fiscal resources are strained by the of the evaluation. priorities of seeking out terrorists and Experts say threats to public water providing for homeland security. It may supplies remain largely remote. take a few years longer than planned, but Widespread health problems by terrorist we can provide resources to ensure contamination of a public water supply is cleaner water. We can continue to work highly unlikely, given the volume of water with the various communities to reduce and the dilution factors involved. Poisoning sediment transport to our streams and the rivers and reservoirs that serve cities other efforts to improve quality of our would require truckloads of chemicals or waterways. biological agents and would be easy to There is talk of stimuli being infused spot, according to experts. Measures to into our shaken, but not broken economy. safeguard water supplies have emerged An ideal way of continuing vital across the nation at varying levels of environmental improvements while government. Suppliers would detect the providing this stimulus is construction to contamination and simply draw their water expand and improve our water and waste from a different source. The treatment water treatment facilities. In the Potomac, process itself is designed to remove as well as the region, contaminants that are naturally occurring biological nutrient removal at treatment or enter the water as a result of human facilities is a proven technique of reducing activity in the watershed and would work harmful nitrogen loadings in the waters. well on most agents intentionally introduced. Implementation of a vast array of best Suppliers throughout the Potomac River management practices at farms, livestock Basin, including those that provide water production sites and construction sites will to the Metropolitan Washington area, have prevent deterioration of our waterways. emergency action plans covering varied Citizen participation in environmental types of incidents that may occur at any of awareness and monitoring efforts have the facilities used for water supply operations. become vital components of action in this Suppliers in several jurisdictions have basin. We need citizens to remain actively reviewed their plans and implemented involved in these pursuits. The wide array actions to protect their systems from of actions to preserve and improve our physical damage, contamination and other quality of life through enhancement of our threats. They have increased routine and natural resources should continue. The special security measures and have quality of the resources in our basin and assessed potential threats that may impact the nation is a part of the reason for which their systems. Suppliers are taking steps to we are seeking an end to terrorism.

93500.pmd 3 10/31/2001, 8:55 AM Confederacy bearing mail and supplies. The Union quickly assembled a Potomac Flotilla to stop crossings and destroy or cripple the many Confederate batteries along the Virginia shore. James A. Ward, the commander of a Union vessel that landed at Mathias Point to storm and destroy such a battery, became the first Union naval officer of the war to die in action. The Potomac Flotilla was somewhat successful at keeping Union shipping active, but was less effective at stopping the smuggling of arms and goods across the Potomac in smaller boats. the attack. Business for the service has Later in the year, the Confederacy mostly recovered since the river reopened. effectively blockaded the Potomac for a Penrod credits a large local customer base, time, with shipping running the gauntlet of noting the existing drop in his business has batteries between Cedar Point and come with the drop in tourism. Quantico at night, reaching safety under the lee of Fort Washington in the morning. The A History of Conflict Confederate batteries on the Virginia shore While the short, complete closure of the hampered Union operations until the focus metropolitan Potomac is unprecedented, of the war moved south, at which time the the river is no stranger to conflict. As a Confederate emplacements along the river water highway into the heart of the Nation’s were abandoned. Capital, the river has seen more than its Although the river was blockaded, it was share of battles, blockades, and other never completely closed. While the Civil conflicts. War raged in 1862, closure of the river was The first Potomac Navy was formed in considered. After the victory of the 1697 to help with “Indian depredations,” Confederate ironclad Virginia in the battle according to Potomac Historian Frederick at , Union Secretary of War Tilp in his book, “This was Potomac River.” Edwin Stanton became very concerned In the years before the American about the ship steaming up the Potomac to Revolution, troubles on the river centered shell the capital, and destroy “Every vessel on the increasing friction between the in the service,” according to research by colonies and England, when various former congressman and Potomac defenses were constructed along the river. historian Gilbert Gude. The possibility of Throughout the course of the war, British such an event prompted a high-level ships entered the Potomac to burn and discussion, during which Navy Secretary plunder riverside towns and estates, with told the President that the some occurring even after Cornwallis ironclad was too heavy and clumsy to surrendered at Yorktown. navigate Kettle Bottom Shoals, near In 1813, the second war with Great Virginia’s . The discussion Britain again resulted in the pillaging and continued in bits during the day, with burning of many villages and homes along Lincoln relenting to Stanton’s urging, and the lower Potomac. In 1814, a portion of the “gave approval to the sinking of 50 or 60 British fleet made its way past the canal boats loaded with gravel or stone at dangerous shoals upstream of Maryland Kettle Bottom Shoals...” When contacted by Point, past Mount Vernon, and Fort an admiral about the operation, Welles Washington, which surrendered without a countermanded the order. At a meeting with shot fired. The fleet sailed up the river, and Lincoln the next morning, Welles explained held Alexandria, Va., for five days before that keeping the Potomac open for heading back down the river. (By the time navigation had come at great expense, and the fleet arrived, the British Army had with the rebels finally withdrawn from already withdrawn from Washington.) The tidewater Virginia, the plan would close the fleet was harassed with some effect as it capital to the sea. Lincoln permitted the sailed downriver. canal boats to be loaded but not be sunk Tilp’s book neatly encompasses the role unless the Virginia began to steam up the of the Potomac in the Civil War: “From John river. Weeks later when the president and a Brown’s raid on the federal arsenal at party were steaming down the river, Harper’s Ferry on the upper Potomac to the someone inquired about the line of barges final flight of Lincoln’s assassin, John anchored along the Maryland shore. Wilkes Booth, down into Maryland and Lincoln responded that that they were across the lower Potomac, the river “Stanton’s navy” and good for nothing, “as became a continuous theater of war.” useless as the paps of a man are to a The Potomac was very active, with much suckling child. There may be some show to commerce, including many crossings by amuse the child, but they are good for southern Marylanders sympathetic to the nothing for service.”

93500.pmd 4 11/2/2001, 12:33 PM EPA Moves to Allay Drinking Water Concerns

U.S. Environmental Protection Agency The EPA has been working with the (EPA) Christie Whitman sought to allay Association of Metropolitan Water Agencies concerns about the security of the nation’s and the Federal Bureau of Investigation drinking water supply during a visit to the and created a notification system among Washington Suburban Sanitary Commission drinking water providers, the law enforcement (WSSC) laboratory on October 18. community, and emergency response “As someone who drinks water at home officials. It can help alert authorities and from the tap–as does my family–this is a water system officials to threats, potential concern I certainly understand,” Whitman vulnerabilities, and incidents. The system is said. “It would take large amounts of being enhanced with a secure web-based contaminants to threaten the safety of a city center. water system. Because of increased Whitman noted that even though the security at water reservoirs and other probabilities of a water-system incident are facilities around the country–and because small, it is still possible. She noted that EPA people are being extra vigilant as well–we is prepared to provide guidance and believe it would be very difficult for anyone laboratory analysis, and that their specialists to introduce the quantities needed to are ready to assist in recovery. contaminate an entire system.” John Griffin, WSSC general manager, Whitman noted that training materials noted that the utility was working to ensure that will help water utilities to conduct the security of its supply, which meets the thorough assessments of vulnerabilities are demands of Washington’s suburbs in being developed by the Sandia National Maryland. “Since our nation’s recent Laboratories. Originally scheduled to be tragedies, we’ve strengthened our already available next year, the project has been solid foundation of safety and security accelerated, with the materials being made measures. Our modern water quality available for water system operator training laboratory helps ensure we fulfill that scheduled to begin in November. crucial mission,” Griffin said.

Companies Seek Permits for Power Plant Construction Along Potomac

The Interstate Commission on the Resources Power Plant Research Program Potomac River Basin (ICPRB) is monitoring coordinates state agency responses to the developments in the applications of two permit applications. companies to construct electric generation Duke’s permit, if approved, would allow plants along the Potomac river upstream of for construction of the proposed power Washington, D.C. As an agency tasked plant with an allocation of 7.5 million with the protection and enhancement of gallons per day (mgd) daily maximum and water quality and related resources through 4.66 mgd annual average appropriation regional and interstate cooperation, ICPRB from the Potomac River, of which 96% will is keeping aware of these proposals and be consumptively used. possible effects on the river’s health and The proposed Mirant facility has an 8.3 ability to meet the drinking water demands mgd daily maximum consumptive use and on the river during drought conditions. The 6.6 mgd annual average consumptive use facilities, as proposed, will use Potomac from the Potomac River. The facility is an River and/or tributary water for cooling. expansion of the existing Dickerson facility. Collectively, the plants could consume There are significant consumptive water several million gallons per day (mgd) of use issues associated with these plants, water, and create other impacts that should which have a bearing on water supply be addressed in planning for future use of interests in the metro area. (Consumptive the river. uses are withdrawals of water that are not Duke Energy Frederick, LLC (Duke) and returned to stream after use.) The water Mirant Dickerson Development, LLC suppliers in the Washington Metropolitan (Mirant) have submitted applications for a Area have intakes downstream of the Certificate of Public Convenience and proposed power plant water intakes. These Necessity to the Maryland Public Service water suppliers are the Washington Commission. The certificate issued by the Aqueduct Division of the U.S. Army Corps commission is the key permit necessary for of Engineers, which takes water from the construction of the plant, with input from the Potomac to supply to the District of state air and water regulatory agencies. Columbia, Arlington and Falls Church; the The Maryland Department of Natural Washington Suburban Sanitary

93500.pmd 5 10/31/2001, 8:55 AM Commission, which supplies water to parts water to several areas in Northern Virginia. of Montgomery and Prince Georges Under Maryland’s consumptive use Counties (Maryland); and the Fairfax regulation, water withdrawers are required County Water Authority, which supplies either to augment Potomac flow to meet consumptive use, or cut back to less than 1 mgd during certain periods specified by Maryland Department of the Environment. Both power companies in their permit applications cite the latter strategy– reducing power output during times of drought in order to meet the 1 mgd withdrawal limitation–as their plan. This plan produces conflicts among water uses in that drought periods are normally times when electric users are seeking increased Watching the River Flow power due to the extreme weather conditions accompanying the drought. Flow of the Potomac River measured In recent studies on future water near Washington, D.C., in August and demand, ICPRB considered the possibility September ranged from well above to of then unplanned power plant water use, below average, and averaged about 34 at the rate of 1 million gallons per day for percent below average for the 2001 each of two possible plants. The current Water Year that ended on September 30, demand for energy seems to have caused according to the U.S. Geological Survey these possibilities to result in active (USGS). applications. Other power projects, The USGS starts their Water Year on possibly using basin waters, are being October 1, when agricultural water use discussed, although no formal permit has largely declined for the year and applications are known to have been made. stream flows are low and steady. For The Potomac river is the primary source Water Year 2001, flow of the Potomac of drinking water for the Washington averaged about 5.4 billion gallons per metropolitan area. It is an adequate source day (bgd), or about 66 percent of the of water for both power and water uses normal flow, about 8.1 bgd. The observations during most periods. However, the potential are based on flow records that date back exists for drought and low flow conditions to to 1930. During the water year, flow occur, during which times the free flowing ranged from a high of about 42.1 bgd on Potomac will be inadequate to meet both March 23 to a low of about 1.0 bgd on power and water supply withdrawals. The September 19. Total freshwater inflow to summer demand on the Potomac by the the Chesapeake Bay averaged about three metro area water suppliers averages 403 bgd, or about 25 percent less than about 500 mgd. Average flow of the river last year. The Potomac contributed about over Little Falls Dam (after water 21 percent of the total, about average. withdrawals) is about 2.9 billion gallons per For August, the river raced along at day during the summer (July through about 3.8 bgd, 42 percent more than the September). When the minimum long-term average of 2.7 bgd. Daily environmental flow plus water supply extremes ranged from a high of about 8.3 demands exceeds Potomac flow levels, bgd on August 2 to a low of about 1.8 bgd upstream reservoir releases are made from on August 30. Municipal withdrawals for water supply storage in order to meet the water supply averaged about 435 million minimum flow requirement. These gallons per day, about five percent more releases are, in effect, available to any than in August 2000. Total freshwater water withdrawer along the river. Storage in inflow to the Chesapeake Bay for August upstream reservoirs is paid for through a averaged about 15.4 bgd, with the cooperative agreement between the three Potomac contributing about 33 percent. major water suppliers in the metro area. In September, river flow fell, its In addition to monitoring power plant monthly flow of about 1.7 bgd only 79 development for potential impacts on water percent of average. Daily extremes for the supply availability, ICPRB has been asked month ranged from a low of about 1.0 for technical information by the involved bgd (the daily low for the water year) on Maryland agencies and the metropolitan September 19 to a high of about 7.0 bgd area water suppliers. Also of interest to on September 25. Municipal withdrawals ICPRB are possible impacts to water quality averaged about 425 mgd, about six and living resources that may arise from percent more than the previous September. temperature increases in the Potomac and Chesapeake Bay freshwater inflow increased nutrients into the air and waters averaged about 11.7 bgd during the of the basin. month, only 57 percent of average. The Additional information may be obtained Potomac contributed about 21 percent. from the Public Service Commission at William Donald Schaefer Tower, 6 St. Paul

93500.pmd 6 10/31/2001, 8:55 AM St., 16th Floor, Baltimore, MD 21202, email: [email protected], telephone (410) Potomac Shoreline to be 767-8000, MD Toll Free, 1-800-492-0474 Preserved or MD Relay Service 1-800-735-2258 (TT/ Voice). More information on the permit Maryland Governor Parris N. Glendening applications can be found by going to the announced the spending of $6.3 million Maryland Public Service Commissions from the GreenPrint Program to purchase website at http://www.psc.state.md.us/psc/ 1,271 acres of land in Charles County to home.htm and searching case numbers preserve a major portion of the Douglas 8888 for Mirant and 8891 for Duke. Point property. The ICPRB water demand studies are The tract, which includes 1.8 miles of available on the ICPRB website at Potomac River shoreline, 90 acres of www.potomacriver.org. wetlands, and high-quality, mature forest will be purchased from the Potomac Electric Power Company and will be permanently preserved. The land will be purchased as the first Bryozoa Revealed step in a conservation strategy that includes the county, the Conservation In response to last month’s article on the Fund, and the federal Bureau of Land exotic Potomac denizen, we received a Management. The purchase will allow letter from Kent Mountford, the former federal, state, and local officials to work in senior scientist for the Chesapeake Bay partnership to determine future use of the Program, an estuarine ecologist and area. Plans call for the area to support environmental historian whose column recreation and nature tourism that will appears in Bay Journal. preserve the area’s ecology. State biologists had determined that the land holds endangered plants and animals. Name the Beast: The Beast The property’s future set off a Named! controversy in the county when its The Potomac Basin Reporter for July- purchase by a mining company was August, 2001, asked readers to “name this proposed, and some county residents Potomac denizen”, and I’ll give a pretty became concerned with noise and certain response: Pectinella magnifica, pollution issues related to gravel which is sometimes called “jelly-ball”. These extraction operations. sometimes dramatic masses of organisms “We are acting with a sense of are members of the order Bryozoa so called urgency all across the state to save our “moss-like animals”. most ecologically valuable lands before Bryozoans commonly encrust other they are lost forever to development,” surfaces but the star- or rosette-shaped Glendening said. Douglas Point is a vital zooids–individual animals of Pectinella link in the state’s delicate ecosystem and magnifica growing cheek by jowl, form a boasts a dense forest, an abundance of gelatinous mass. These colonies of many wetlands, and a pristine stretch of animals are sometimes firm, like the one shoreline that is home to a variety of shown, but are sometimes very watery. The wildlife, including bald eagles and overall structure is called (appropriately) a osprey.” floatoblast, and yes it floats, still often During the Glendening Administration, containing the stick or other object which land protected by state and local partners was the nucleus of its formation. Big has increased from 589,487 to 825,279 colonies are often host to insect larvae, acres, an increase of 40 percent in seven since they provide shelter and an years. environment stable for many weeks. At some point later in summer or fall, Pectinella colonies break up from the floatoblast stage, and produce “statoblasts,” among the group which founded the small circular or sometimes rhomboidal Academy of Natural Sciences of disk-like cysts, each bordered by a crown of Philadelphia in 1812. It is our nation’s spines and possessing a small raised float. oldest natural science institution and today These are resistant to severe conditions in has a strong presence around the the environment and are the device by Chesapeake through its estuarine research which Pectinella persists from year to year. laboratory on Maryland’s Patuxent River. Some bryozoan statoblasts were dried for Freshwater bryozoa are usually not 50 months and still germinated when times associated with really polluted conditions, were again favorable. but Pectinella is reported to occur in This particular species has a long history “stagnant waters,” so unfortunately they among East coast biologists, having been don’t so far seem to be a bellwether of first described by Philadelphia physician / better conditions in the Potomac and naturalist Joseph Leidy in 1851. Leidy was Anacostia.

93500.pmd 7 11/2/2001, 12:33 PM POTOMAC CALENDAR

ICPRB Business Meeting ICPRB will hold its first-quarter business meeting at its offices in Rockville on December 4. Commissioners will be updated on ICPRB projects and discuss other Potomac issues. The meeting is open to the public. For more information or to attend, contact Ms. Bo Park at the commission. Stream workshop for Pa. Controlling Nutrients and Monitors Sediment Citizen stream monitors can benefit from The Pennsylvania departments of this event on January 25-26 by learning Environmental Protection and Agriculture, about the usefulness of monitoring, how in cooperation with several other data is used, and decision-making. The cosponsoring organizations, will present a indoor session uses role-play and feedback Nutrient Management and Sediment in small groups. A location in south-central Control Innovative Technology Forum on Pennsylvania will be determined. For more February 12-14, 2002 at the Holiday Inn in information, contact Diane Wilson, Pa. Grantville, Dauphin County. Department of Environmental Protection, at The forum will highlight new techniques (717) 787-3730. for controlling these types of impacts, providing an opportunity for technology users to interact with providers. The forum seeks to provide cost-effective answers to pollution control through familiarization with new technologies. For more information, contact Peter Slack at (717) 787-3481, or

email him at [email protected] PAID U.S. Postage U.S. Rockville, MD Permit No. 800 No. Permit Non-Profit Org.

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Potomac Basin

Editor: Curtis M. Dalpra (ISSN 1072-8627) Published six times a year by the Interstate Commission on the Potomac River Basin, Suite 300, 6110 Executive Blvd., Rockville, MD 20852. (301) 984-1908. E-Mail: [email protected] Internet: http://www.potomacriver.org Joseph K. Hoffman, Executive Director This publication does not necessarily reflect official Commission policies. Funds for the Reporter are provided by the U.S. Environmental Protection Agency and the signatory bodies to ICPRB: District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia. Interstate Commission on the Potomac River Basin River Interstate Commission on the Potomac Suite 300 6110 Executive Blvd. Rockville, Maryland 20852 Address Service Requested September/October 2001

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