Susquehanna UNADILLA RIVER ROCKDALE -26.2 SUSQUEHANNA RIVER CONKLIN -5.2 EXPLANATION SUSQUEHANNA RIVER WAVERLY 0 Improving COHOCTON RIVER CAMPBELL -26.4 CHEMUNG RIVER CHEMUNG -32.4 Degrading SUSQUEHANNA RIVER TOWANDA 48 TUNKHANNOCK CREEK TUNKHANNOCK 83.8 No Trend SUSQUEHANNA RIVER WILKES-BARRE 11.6 SUSQUEHANNA RIVER DANVILLE 13.8 Improving or degrading WB SUSQUEHANNA RIVER KARTHAUS -8.2 trends classified as PINE CREEK WATERVILLE 61.7 WB SUSQUEHANNA RIVER JERSEY S. 7.7 likelihood estimates WB SUSQUEHANNA RIVER LEWISBURG -0.5 greater than or equal to 67% PENNS CREEK PENNS CREEK -3.7 RAYSTOWN BRANCH JUNIATA RIVER 32 *The number next to each JUNIATA RIVER NEWPORT -6.4 bar represents the total percent SHERMAN CREEK SHERMANS DALE 6.9 change in total phosphorus CONODOGUINET CREEK HOGESTOWN -7 yield over the specified time period. YELLOW BREECHES CREEK CAMP HILL 34.6 SWATARA CREEK HERSHEY 1 WEST CONEWAGO CREEK MANCHESTER 12.1 SUSQUEHANNA RIVER MARIETTA 14.7 CONESTOGA RIVER CONESTOGA 15.6 PEQUEA CREEK MARTIC FORGE 32 SUSQUEHANNA RIVER CONOWINGO 2.5 OCTORARO CREEK RICHARDSMERE 0.8 DEER CREEK DARLINGTON -5.2 Eastern Shore NANTICOKE RIVER BRIDGEVILLE 24.8 MARSHYHOPE CREEK ADAMSVILLE 60.8 CHOPTANK RIVER GREENSBORO 37.4 TUCKAHOE CREEK RUTHSBURG 30.8 BIG ELK CREEK ELK MILLS -7.5 Western Shore GUNPOWDER FALLS GLENCOE 65.7 NB PATAPSCO RIVER CEDARHURST -15.4 GWYNNS FALLS VILLA NOVA -26.3 PATUXENT RIVER UNITY 18.5 PATUXENT RIVER BOWIE -6.4 WESTERN BRANCH UPPER MARLBORO -10.4

Potomac GEORGES CREEK FRANKLIN -36.5 WILLS CREEK CUMBERLAND 0.6 PATTERSON CREEK HEADSVILLE -30.9 SB POTOMAC RIVER SPRINGFIELD -54.9 TOWN CREEK OLDTOWN 9.2 CACAPON RIVER GREAT CACAPON -26.7 TONOLOWAY CREEK HANCOCK 9 LICKING CREEK PECTONVILLE -1.9 CONOCOCHEAGUE CREEK FAIRVIEW 9.3 OPEQUON CREEK MARTINSBURG -56.8 ANTIETAM CREEK WAYNESBORO -25.5 ANTIETAM CREEK SHARPSBURG -7.1 SF SHENANDOAH RIVER FRONT ROYAL -29.5 NF SHENANDOAH RIVER STRASBURG -47.3 CATOCTIN CREEK MIDDLETOWN -28.2 MONOCACY RIVER BRIDGEPORT 7.9 POTOMAC RIVER CHAIN BRIDGE 6.8 NW ANACOSTIA RIVER HYATTSVILLE -16.6 Virginia RAPIDAN RIVER CULPEPER -6.8 RAPPAHANNOCK RIVER FREDER. 27.9 NORTH ANNA RIVER DOSWELL 15.6 PAMUNKEY RIVER HANOVER 10.2 MATTAPONI RIVER BEULAHVILLE 15.2 JAMES RIVER BLUE RIDGE PKWY -7.9 JAMES RIVER CARTERSVILLE -7.8 JAMES RIVER RICHMOND 3 APPOMATTOX RIVER MATOACA 13.4 CHICKAHOMINY RIVER PROVIDENCE F. 5.6 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Change in load, in pounds per acre

Figure 5. Change in total phosphorus per acre loads during the period, 2009-18, for selected Chesapeake Bay nontidal monitoring stations.