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Data collected by the MD-DE-DC USGS Water Science Center are reported in Eastern Standard Time (EST) year-round.

Updated June 23, 2016: USGS streamflow monitoring will soon be discontinued at the following sites:
  • Sites to be discontinued July 1, 2016
  • 01487150 BUCKS BRANCH NEAR ATLANTA, DE (2014 to present)
  • 01594963 NYDEGGER RUN NEAR GORMAN, MD (2013 to present)
  • 01596050 SAVAGE RIVER NEAR AVILTON, MD (2013 to present)
  • 01597000 CRABTREE CREEK NEAR SWANTON, MD (1948 to present)
  • 03076700 BUFFALO RUN NEAR FRIENDSVILLE, MD (2013 to present)
  • 03076800 MILL RUN AT MINERAL SPRING, MD (2013 to present)
Currently, data collection activities at these sites (map) are funded jointly by the USG S and partner agencies through the USGS Cooperative Water Program. Lack of partner funding for these sites will result in discontinuation of all monitoring activities. Questions or concerns can be directed to Jon Dillow (jjdillow@usgs.gov; 443-498-5524).

  • Recently Discontinued
  • 01598650 SAND SPRING RUN AT FROSTBURG, MD (2006 to 2016)

Current Conditions for Maryland: Water Quality -- 42 site(s) found

PROVISIONAL DATA SUBJECT TO REVISION




Customize table to display other current-condition parameters
Station
Number
Station name Date/Time Temper-
ature,
water,
deg C
Specif-
ic
conduc-
tance,
wat unf
uS/cm @
25 degC
pH,
water,
unfltrd
field,
std
units
Turbdty
white
light,
det ang
90+/-30
degrees
NTU
Turbid-
ity,
IR LED
light,
det ang
90 deg,
FNU
Dis-
solved
oxygen,
mg/L
Nitrate
+
nitrite
water,
in situ
mg/L as
Nitrate
water,
in situ
mg/L
as N
CDOM,
in situ
fluores
cence,
ppb QSE
Chloro-
phyll,
water,
in situ
fluoro-
metric,
RFU
Phyco-
cyanins
in situ
IVFU
Group YOUGHIOGHENY RIVER BASIN
03076500 YOUGHIOGHENY RIVER AT FRIENDSVILLE, MD  06/30 15:45 EST  22.7 -- -- -- -- -- -- -- -- -- -- 
Group NORTH BRANCH POTOMAC RIVER BASIN
01595800 NORTH BRANCH POTOMAC RIVER AT BARNUM, WV  06/30 15:00 EST  14.9 297 7.7 -- -- -- -- -- -- -- -- 
01596500 SAVAGE RIVER NEAR BARTON, MD  06/30 15:00 EST  19.1 -- -- -- -- -- -- -- -- -- -- 
01597500 SAVAGE RIV BL SAVAGE RIV DAM NEAR BLOOMINGTON, MD  06/30 15:00 EST  14.8 -- -- -- -- -- -- -- -- -- -- 
Group SOUTH BRANCH POTOMAC RIVER BASIN
01608500 SOUTH BRANCH POTOMAC RIVER NEAR SPRINGFIELD, WV  06/30 16:30 EDT  25.0 213 8.0 -- 130 8.2 -- -- -- -- -- 
Group POTOMAC RIVER BASIN (Town Creek to Harpers Ferry)
01610400 WAITES RUN NEAR WARDENSVILLE, WV  06/30 17:00 EDT  19.0 -- -- -- -- -- -- -- -- -- -- 
01611500 CACAPON RIVER NEAR GREAT CACAPON, WV  06/30 16:30 EDT  25.6 133 7.9 -- -- 8.9 -- -- -- -- -- 
Group POTOMAC RIVER BASIN (Harpers Ferry to Washington)
01640975 HUNTING CREEK NEAR THURMONT,MD  06/30 15:00 EST  18.5 -- -- -- -- -- -- -- -- -- -- 
01646500 POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA  06/30 15:45 EST -- 287 -- -- -- -- -- -- -- -- -- 
    06/30 15:30 EST -- -- -- -- -- -- 1.19 -- -- -- -- 
      1.0 ft from riverbed (bottom)  06/30 15:45 EST  28.0 -- -- -- -- -- -- -- -- -- -- 
      4.1 ft from riverbed (middle)  06/30 15:45 EST  28.3 -- -- -- -- -- -- -- -- -- -- 
      7.1 ft from riverbed (top)  06/30 15:45 EST  27.9 -- -- -- -- -- -- -- -- -- -- 
      From multiparameter sonde  06/30 15:30 EST  27.8 295 8.1 -- 4.6 8.6 -- -- -- -- -- 
01648010 ROCK CREEK AT JOYCE RD WASHINGTON, DC  06/30 15:15 EST  24.0 341 7.6 -- 5.2 7.3 0.76 -- -- -- -- 
01649190 PAINT BRANCH NEAR COLLEGE PARK, MD  06/30 15:25 EST  21.7 284 7.4 -- 8.5 8.1 -- -- -- -- -- 
01649500 NORTHEAST BRANCH ANACOSTIA RIVER AT RIVERDALE, MD  06/30 15:25 EST  25.5 322 7.4 -- 13 7.8 -- -- -- -- -- 
01650800 SLIGO CREEK NEAR TAKOMA PARK, MD  06/30 15:25 EST  22.9 350 8.0 -- 2.1 8.0 -- -- -- -- -- 
01651000 NORTHWEST BR ANACOSTIA RIVER NR HYATTSVILLE, MD 
      Center of flow  06/30 15:25 EST  25.8 303 -- -- 13 -- -- -- -- -- -- 
01651770 HICKEY RUN AT NATIONAL ARBORETUM AT WASHINGTON, DC  06/30 15:28 EST  23.3 918 -- -- 12 -- -- -- -- -- -- 
01651800 WATTS BRANCH AT WASHINGTON, DC  06/30 15:28 EST  26.6 467 -- -- 3.7 -- -- -- -- -- -- 
Group POTOMAC RIVER BASIN (downstream of Washington, DC)
01654000 ACCOTINK CREEK NEAR ANNANDALE, VA  06/30 16:45 EDT  25.4 203 7.3 -- 3.5 8.1 0.50 -- -- -- -- 
Group PATUXENT RIVER BASIN
01591610 PATUXENT RIVER BELOW BRIGHTON DAM NEAR BRIGHTON,MD 
      [Right bank at gage.]  06/30 15:45 EST  21.3 -- -- -- -- -- -- -- -- -- -- 
Group PATAPSCO RIVER BASIN
01589025 PATAPSCO RIVER NEAR CATONSVILLE, MD  06/30 15:30 EST -- -- -- 9.2 -- -- -- -- -- -- -- 
01589035 PATAPSCO RIVER NEAR ELKRIDGE, MD  06/30 15:30 EST -- -- -- 21 -- -- -- -- -- -- -- 
01589290 SCOTTS LEVEL BRANCH AT ROCKDALE, MD  06/30 15:50 EST  21.8 330 -- -- -- -- -- -- -- -- -- 
      TS032  06/30 15:50 EST -- -- -- -- 3.6 -- -- -- -- -- -- 
Group BACK RIVER BASIN
01585219 HERRING RUN AT SINCLAIR LANE AT BALTIMORE, MD  06/30 15:50 EST  25.8 354 8.2 -- -- -- -- -- -- -- -- 
      TS032  06/30 15:50 EST -- -- -- -- 0.9 -- -- -- -- -- -- 
01585225 MOORES RUN TRIB. NEAR TODD AVE AT BALTIMORE, MD 
      Center of flow  06/30 15:18 EST  20.7 -- 7.7 -- -- -- -- -- -- -- -- 
01585230 MOORES RUN AT RADECKE AVE AT BALTIMORE, MD  06/30 15:24 EST  22.7 -- 7.7 -- -- -- -- -- -- -- -- 
Group GUNPOWDER RIVER BASIN
01581920 GUNPOWDER FALLS NEAR PARKTON, MD 
      [15 ft downstream of gage.]  06/30 16:00 EST  12.9 -- -- -- -- -- -- -- -- -- -- 
01582500 GUNPOWDER FALLS AT GLENCOE, MD  06/30 15:15 EST -- -- -- 5.2 -- -- -- -- -- -- -- 
01583500 WESTERN RUN AT WESTERN RUN, MD  06/30 15:30 EST -- -- -- 6.9 -- -- -- -- -- -- -- 
01585075 FOSTER BRANCH NEAR JOPPATOWNE, MD  06/30 15:30 EST  24.9 246 -- -- -- -- -- -- -- -- -- 
      TS087  06/30 15:30 EST -- -- -- -- 6.3 -- -- -- -- -- -- 
Group BUSH RIVER BASIN
01581752 PLUMTREE RUN NEAR BEL AIR, MD  06/30 15:25 EST  22.0 436 -- -- 1.1 -- -- -- -- -- -- 
Group SUSQUEHANNA RIVER BASIN
01576000 Susquehanna River at Marietta, PA  05/19 08:15 EDT  15.2 182 -- -- 6.5 -- -- -- -- -- -- 
01579550 SUSQUEHANNA RIVER NEAR DARLINGTON, MD  06/30 15:25 EST  30.5 251 -- -- 0.8 -- -- -- -- -- -- 
    06/30 15:15 EST -- -- -- -- -- -- 0.80 -- -- -- -- 
Group CHESAPEAKE BAY DRAINAGE - EASTERN SHORE
01493112 CHESTERVILLE BRANCH NEAR CRUMPTON, MD 
      100 ft upstream from gage  06/30 15:30 EST  22.0 188 6.8 -- 15 8.6 8.25 -- -- -- -- 
Group DELAWARE BAY DRAINAGE
01463500 Delaware River at Trenton NJ 
      Pennsylvania side  06/30 16:00 EDT  27.8 247 9.0 -- 1.8 9.9 -- -- -- -- -- 
01478245 White Clay Creek near Strickersville, PA  06/30 16:30 EDT -- -- -- -- 1.0 -- -- -- -- -- -- 
01479820 Red Clay Creek near Kennett Square, PA  06/30 16:45 EDT  22.6 -- -- -- 1.6 -- -- -- -- -- -- 
01481000 Brandywine Creek at Chadds Ford, PA  06/30 16:30 EDT -- 378 8.0 -- 2.8 9.4 -- -- -- -- -- 
    06/30 00:30 EDT  24.0 -- -- -- -- -- -- -- -- -- -- 
01481500 BRANDYWINE CREEK AT WILMINGTON, DE  06/30 15:15 EST  25.0 381 8.2 -- 2.9 9.2 -- -- -- -- -- 
Group DELAWARE BAY TIDAL STATIONS
01480065 CHRISTINA RIVER AT NEWPORT, DE  06/30 15:30 EST  26.5 421 8.2 -- -- 12.5 -- -- -- -- -- 
01483177 APPOQUINIMINK RIVER NEAR ODESSA, DE  06/30 15:45 EST  26.7 8,860 7.1 -- -- 5.1 -- -- -- -- -- 
01484080 MURDERKILL RIVER AT FREDERICA, DE  06/30 16:06 EST  26.8 1,000 7.0 -- -- 4.3 -- -- -- -- -- 
Group ATLANTIC COASTAL BAYS DRAINAGE
01484525 MILLSBORO POND OUTLET AT MILLSBORO, DE  06/30 15:15 EST  25.5 135 7.0 -- -- 8.0 -- -- -- -- -- 
Group ATLANTIC COASTAL BAYS TIDAL STATIONS
01484680 MASSEY DITCH AT MASSEY LANDING, DE  06/30 15:45 EST  21.9 46,500 8.0 -- -- 7.5 -- -- -- -- -- 

Data status codes:
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