Much below normal flows in Central NY drainage basin persist to Long Island Sound

Table updated May 24 21:00 EDT

Find your location in one of the 17 watersheds of the state

 Central NY Watersheds

Collecting rainfall and snowmelt from the central state areas that run toward New York City emptying into the Atlantic Ocean at Long Island Sound.

Upper Hudson River Watershed 

The Upper Hudson River Watershed drains the south side of the Adirondack Mountains, originating on Mt. Marcy and flowing south; the watershed management area extends to the Albany-Rensselaer County line.  From the confluence of the Mohawk River, the Lower Hudson River gathers volume and carries on south to the Atlantic via Long Island Sound tidal estuary.

Major water bodies include Sacandaga River, Schroon River, Indian River, Fish Creek, Hoosic River, Batten Kill, Great Sacandaga Lake, Indian Lake, Schroon Lake, Saratoga Lake

Flows parts of Essex, Hamilton, Saratoga, Washington, Rensselaer and Warren Counties

• Upper Hudson River drains an area of 8288 sq miles from headwaters to Albany;
• at Newcomb in Essex County the normal flow is around 230 cfs and just over 2 ft deep (minor flood stage 12.5 ft);
• at North Creek in Warren County a normal flow is 1300 cfs and 4 ft deep (minor flood stage 10ft);
• at Hadley flow is normally less than 3000 cfs and 4 ft deep (minor flood stage 14 ft);
• at Fort Edward in Washington County, normal is around 6000 cfs and less than 20 ft deep (minor flood stage 26 ft);
• above Lock 1 near Waterford, the station measures flows normally less than 10,000 cfs and 21 ft deep (minor flood stage 34 ft).
• Hudson River 303d listed for iron, aluminum and total phenols, copper, pH, listed in 1998 for PCBs, mercury, recommended for delisting in 2022 due to flawed original analysis
• Vanderwhacker Brook Trib 2 drains an area of .35 sq miles in Essex County before entering the Boreas River system. There are no active monitors on the Boreas, which runs through Essex County, and joins the Hudson system.  Vanderwhacker Brook station has not been monitored long enough to give a rating of low flow, normal, above normal etc, the flow here has been measured at less than 1 cfs and half a foot deep.
• Durgin Brook drains an area of 6.86 sq miles of Essex County before entering the Boreas River system. Flow at Boreas River is unrated, measures around 30 cfs and three and a half feet deep while the conditions are normal.
• Indian River drains an area of 132 sq miles in Hamilton County. The flow near Indian Lake is rated normal around 500 cfs and 3 ft deep. 
• Schroon River drains an area of 527 sq miles in Warren County; the flow at Riverbank is not rated, registers under four feet deep when conditions in the area are normal (minor flood stage 7ft)
• Glens Falls Feeder (canal) in Washington County at Dunham Basin is monitored seasonally. Flow here is not given a rating of normal or otherwise, during the winter months it does freeze up.  No readings available as of Feb 22, 23.
• Sacandaga River drains an area of 1055 sq miles in Hamilton and Saratoga Counties. Normal flow
• near Hope is around 900 cfs and under 3 feet (minor flooding occurs at 7ft);
• at Stewart’s Bridge near Hadley can be around 4000 cfs and 5 ft deep.
• Glowegee Creek drains an area of 26 sq miles in Saratoga County. The normal flow near West Milton is under 50 cfs and under 3.5 ft deep.
• Batten Kill drains an area of 396 sq miles of Washington County. The flow below Mill at Battenville is normally less than 1000 cfs and 5 ft deep (minor flood stage 12ft).
• Hoosic River originates in Massachusetts, flowing north in MA and across New York in a westerly direction before joining the upper Hudson. The Hoosic drains an area of 510 sq miles including Rensselaer County.  The flow
• near Williamstown, MA is normal under 600 cfs and 6 ft deep (minor flood stage 9ft);
• at Eagle Bridge flows around 1300 cfs and 4 ft deep (minor flood stage 11 ft)

Hoosic River 303d listed in 1998 for PCBs; proposed for de-listing in 2022 for flawed original analysis

Low Flows (2)

May 24 17:00 EDT - Hudson River is flowing much below normal at Newcomb - running 2.16 ft deep and 210 cubic feet per second, much below normal at North Creek - running 3.2 ft deep and 689 cubic feet per second

May 24 17:00 EDT - Sacandaga River is flowing much below normal near Hope - running 2.07 ft deep and 310 cubic feet per second

Impaired Water Bodies (26)

New and existing Class 5 impaired water bodies (26), by type, County, year of listing and contaminants/concerns in regular text, with 15 of these water bodies proposed for de-listing in whole or in part – see full list under Central tab

Drinking Water Reservoirs on the Impaired List:

• Schaghticoke Reservoir (1102-0015) in Rensselaer County, listed in 2006 for PCBs, recommended for delisting in 2022 for flawed analysis

Drinking Water Advisories (0)

Spills (3)

• May 17 - 49 gallons of ammonium bisulfate reported spilled onto the ground due to equipment failure on Glen St in Glens Falls – Warren
• May 19 - unknown amounts of gasoline reported spilled at Cumberland Farms Gas Station due to equipment failure on Main St in Hudson Falls – Washington
• May 19 - unknown amounts of solid waste reported spilled from a garbage truck fire on NY Route 17 in Hoosick Falls - Rensselaer

Mohawk River Watershed

The Mohawk River originates in the western Adirondacks and the Tug Hill Plateau and flows 140 miles to the east where it joins the Hudson River. Sections of the Mohawk River also serve as the New York State Barge (Erie) Canal.

Including Schoharie Creek, West Canada Creek, East Canada Creek; Hinkley Reservoir, Delta Reservoir, Peck Lake, Schoharie Reservoir; joins the Hudson River below Albany.

Flows draining parts of Schenectady, Oneida, Herkimer, Montgomery, and Albany Counties

• Mohawk River drains an area of 3450 sq miles in Oneida, Herkimer, Montgomery, Schenectady, and Albany Counties. The flow
• at Delta Dam near Rome in Oneida County, normal flow is around 240 cfs and 2.3 ft deep;
• near Utica in Herkimer County, normal flow gets to 1380 cfs and 7 ft deep (flood stage 403 ft);
• at Little Falls, normal flow is in the range 2700 cfs and 7ft deep;
• at Fonda the flow is unrated, we have noted it at 4700 cfs and 13 ft deep, this station records water temp;
• at Amsterdam in Montgomery County unrated, can be 6800 cfs and 11.74 ft deep, and there is a temp monitor here also;
• at Lock 8 near Schenectady in Schenectady County, flow is commonly 11 ft deep, temp and conductivity are measured here;
• at Freeman’s Bridge in Schenectady County flow is unrated, we see this station around 7400 when the rest of the monitors are normal, 11 ft deep (flood stage 20ft);
• at Rexford in Saratoga County an unrated flow commonly read at 11 ft deep, temp and conductance monitors here;
• at Vischer Ferry Dam flow can be see at 10 ft deep when the system is flowing at a normal rate;
• at Cohoes in Albany County normal flow is around 7300 cfs and 11.5 feet deep, measured above the confluence with the Hudson River (flood stage 20ft). (updated 03-30-23-23)

Listed 303d for aluminum, copper, low oxygen, fecal coliform, PCBs

• Oriskany Creek drains an area of 144 sq miles in Oneida County into the Mohawk River. The flow at Oriskany is unrated, 104.5% above mean at 361 cfs and 3.82 ft deep (updated 01-26-23)
• Sauquoit Creek drains an area of 59.8 sq miles of Oneida County into the Mohawk River. The flow at Whitesboro is unrated, 109.6% above mean at 137 cfs and 2.23 ft deep. (updated 01-26-23)

Sauquoit Creek 303d listed in 2002 for PCBs, proposed for delisting in 2022 for flawed original analysis

• Moyer Creek drains an area of 18.2 sq miles in Herkimer County. The flow at Frankfort is unrated, we see this around 25 cfs and 2.5 ft deep. (updated 03-30-23)
• West Canada Creek drains an area of 560 sq miles in Herkimer County into the Mohawk River. The flow
• near Wilmurt flow is unrated, 300 cfs and 3 ft deep is common;
• at Kast Bridge in Herkimer County, normal flow is under 1700 cfs and 3.5 ft deep. (updated 03-30-23)

West Canada Creek 303d list: Upper and minor tributaries (1203-008) in Herkimer County, listed in 1998, 2004 for pH

• ­­­­East Canada Creek drains an area of 289 sq miles of Herkimer County into the Mohawk system. Normal flow at East Canada Creek in Herkimer is 600 cfs and 2.3 ft deep (updated 03-30-23)
• Steele Creek drains an area of 26.4 sq miles in Herkimer County into the Mohawk River. The flow at Ilion is unrated, it can be seen at around 70 cfs and 2.9 ft deep. (updated 03-30-23)

Steele Creek 303d listed in 2004 for total phosphorous; listed in 2004 for silt/sediment, proposed for delisting in 2022 for flawed original analysis

• Fulmer Creek drains an area of 21.7 sq miles of Herkimer County into the Mohawk system. The flow at Mohawk is unrated, we see this location measuring around 30 cfs and 2.4 ft deep.  (updated 03-30-23)
• Otsquago Creek drains an area of 61 sq miles in Montgomery County into the Mohawk system. Normal flow at Fort Plain is in the league of 150 cfs and 1.8 ft deep. (updated 03-30-23)
• Canajoharie Creek drains an area of 59.7 sq miles in Montgomery County. The flow at Canajoharie is unrated, when all other flows are normal, we note this station around 135 cfs and 2.7 ft deep (updated 03-30-23)
• Schoharie Creek drains an area of 886 sq miles of Schoharie County flowing north to join the Mohawk River;
• near Lexington the flow is unrated, it can get to 500 cfs and 3.5 ft deep on an average day;
• at Prattsville, normal velocity is less than 900 cfs and 4.5 ft deep (flood at 12ft);
• at Gilboa, normal flow is 1300 cfs and 13 ft deep (flood stage 17 ft),
• near North Blenheim is unrated, flow can be 1500 cfs and 5.4 ft deep;
• at North Blenheim, normal flow is around 1100 cfs and 4 ft deep;
• at Breakabeen, normal is 1650 cfs and 4 ft deep (flood stage 11ft);
• at Middleburgh flow is not rated, 1200 cfs and 6.5 ft deep is not unusual;
• at Schoharie, 6.75 ft deep;
• at Esperance, 1.8 ft deep;
• at Burtonsville in Schoharie County, normal flow is less than 1600 cfs and 2 ft deep, (flood stage 6ft) (updated 03-30-23)
• Fox Creek drains an area of 99 sq miles in Schoharie County. The flow near Schoharie is unrated, 700 cfs and 3 ft deep are not out of the ordinary. (updated 03-30-23)
• Little Schoharie Creek drains an area of 18.1 sq miles of Schoharie County. The flow near Middleburgh is unrated, 100 cfs and 3 ft deep are common levels. (updated 03-30-23)
• West Kill drains an area of 27 sq miles in Greene County. The flow
• near Spruceton is unrated, 17 cfs and .85 ft deep;
• at West Kill is unrated, 130 cfs and 3.8 ft deep are common here. (updated 03-30-23)
• East Kill drains an area of 35.6 sq miles in Greene County. The flow near Jewett Center is unrated, 160 cfs and 4 ft deep is not unusual. (updated 03-30-23)
• Manor Kill drains an area of sq miles in Schoharie County. Normal flow at West Conesville near Gilboa is 200 cfs and 1.8 ft deep.  (updated 03-30-23)
• Platter Kill drains an area of 10.9 sq miles in Schoharie County. Normal flow at Gilboa is 40 cfs and 2 ft deep. (updated 03-30-23)
• Mine Kill drains an area of 16.2 sq miles in Schoharie County. Normal flow near North Blenheim is 60 cfs and 2.75 ft deep. (updated 03-30-23)
• Batavia Kill drains an area of 68.6 sq miles in Greene County before joining with Schoharie system. The flow at Red Falls near Prattsville is unrated, 290 cfs and 2.8 ft deep.  (updated 03-30-23)
• Cobleskill Creek drains an area of sq miles in Schoharie County heads north to join the Mohawk River. The flow at S. Grand Street, Cobleskill is unrated, we see this one at 400 cfs and 4.8 ft deep. (updated 03-30-23)
  • 303d listed in 2004 for fecal coliforms.

Low Flows (3)

May 24 17:00 EDT - East Canada Creek is flowing much below normal at East Creek - running 1.17 ft deep and 39.8 cubic feet per second

 May 24 17:00 EDT - Mohawk River is flowing much below normal near Little Falls - running 5.48 ft deep and 1110 cubic feet per second

May 24 17:00 EDT - West Canada Creek is flowing much below normal at Kast Bridge - running 2.89 ft deep and 654 cubic feet per second

Impaired Water Bodies (28)

28 sites proposed in 2020-2022 Draft 303d, for details see list on this site.

Schoharie Reservoir receives rainfall and snow melt run-off from an area of 315 sq miles in Schoharie County.  Schoharie Reservoir (1202-0012), lake/reservoir in Greene County, listed in 1998 for silt/sediment; recommended for de-listing in 2022 for flawed original analysis

Drinking Water Advisories (0)

Spills (5)

• May 15 - unknown amount of diesel and 75 gallons of hydraulic oil reported spilled on the I-70 approaching Route 12 in Utica – Oneida
• May 15 - unknown amount of unknown petroleum reported spilled on the roadway on the Corner of Route 365 in Barneveld - Oneida
• May 16 - unknown amounts of diesel reported spilled due to equipment failure on Edick Rd in Marcy – Oneida
• May 19 - 100 gallons of glycol reported spilled due to equipment failure on Revere Park in Rome – Oneida
• May 16 - unknown amounts of hydraulic oil reported spilled due to equipment failure on Bell Hill Rd in Illion - Herkimer

Lower Hudson River Watershed 

The Lower Hudson Watershed begins where the Mohawk River joins the Hudson system at the Troy Dam and extends down to Manhattan.  The lower end of the Hudson system, 153 miles, is technically a tidal estuary, not a river.

Rondout/Wallkill Rivers, Stockport/Kinderhook Creeks, Catskill Creek, Esopus Creek, Croton River; Ashokan Reservoir, Rondout Reservoir, New Croton Reservoir, Alcove Reservoir, Cross River Reservoir, Muscoot/Upper New Croton Reservoir

Flows catching parts of Albany, Rensselaer, Dutchess, Columbia, Ulster Counties

• Lower Hudson River drains the bottom end of a total area more than 12,600 sq miles in New York State.
• At Green Island in Albany County, the Hudson is flowing normal, 113.4% above mean at 19400 cfs and 17.57 ft deep (flood stage 21.5);
• at Albany is 1.08 ft deep (flood stage 11 ft) 1.7°C;
• at Port of Albany, flow is reporting 1.48 ft deep, 1.4°C and 291 µS/cm;
• the tidal estuary near Poughkeepsie station in Dutchess County flow is 3.06 ft deep, 1.4°C, 236 µS/cm
• at South Dock at West Point(Orange) 54 ft deep, 2.2°C with specific conductance of 236 µS/cm;
• at Piermont the flow is not rated, 1.03 ft deep (USGS flood stage 4.3 ft) ---°C and --- µS/cm (sensors are malfunctioning) (updated 01-26-23)

Lower Hudson 303d listed in 2022 for Aluminum, Copper, Iron and Total Phenols.  A listing in 1998 for PCBs is suggested for delisting in 2022 due to flaws in original analysis.

• Normans Kill drains 168 sq miles of Albany County. The flow
• at Karlsfield is not rated, can be around 9.5 ft deep;
• the flow at Albany is unrated, when conditions are average this station records a flow of 360 cfs and 3.8 ft deep. (updated 03-03-23)
• Esopus Creek drains an area of 419 sq miles of Ulster County;
• below Lost Clove Rd at Big Indian in Ulster the flow is unrated, when conditions are average we see this creek at 60 cfs and 3.7 ft deep;
• at Allaben, a normal flow rate is less than 200 cfs and 3.8 ft deep;
• at Coldbrook a normal flow is 830 cfs and 5.3 ft deep (flood 11ft), temp is recorded here;
• near Lomontville is unrated, can flow at 150 cfs and 3.3 ft deep;
• at Mount Marion a normal flow is less than 1100 cfs and 15 ft deep (flood stage 20 ft). (updated 03-03-23)

Esopus Creek 303d listed in 2012 for turbidity; Esopus Creek, Upper, including minor tributaries (0007) in Ulster County, listed in 1998 for silt/sediment, considered for delisting in 2022 due to flawed original analysis.

• Stony Clove Creek drains an area of 30.9 sq miles in Ulster County before entering the Ashokan Reservoir. The flow below Ox Clove at Chichester is unrated, we do see it at  at 110 cfs and 2.8 ft deep. (updated 03-03-23)
• Birch Creek drains an area of 12.5 sq miles in Ulster County and enters the Ashokan Reservoir. The flow at Big Indian is unrated, it has been recorded at 30 cfs and 3.2 ft deep. (updated 03-03-23)
• Beaver Kill drains an area of sq miles in Ulster County before joining Esopus Creek. The flow at Mount Tremper is unrated, we see it at 80 cfs and 7 ft deep. (updated 03-03-23)
• Woodland Creek drains an area of 20.6 sq miles of Ulster County. The flow
• above mouth at Phoenicia flow is unrated, around 55 cfs and 4.5 ft deep. (updated 04-18-23)
• Valatie Kill drains an area of 9.8 sq miles of Rensselaer County before joining the Hudson; normal near Nassau is around 20 cfs and 2 feet deep. (updated 04-18-23)

Valatie Kill 303d listed in 2010 for PCBs, considered for delisting in 2022 due to flaws in the original analysis.

• Bush Kill drains an area of 69.3 sq miles of Ulster County before entering the Ashokan Reservoir. The flow below Maltby Hollow Brook at West Shokan is unrated, often seen around 40 cfs and 2.7 ft deep. (updated 04-18-23)
• Hollow Tree Brook drains an area of 1.95 sq miles in Greene County, joining the Stony Clove Brook and entering Ashokan Reservoir. The flow at Lanesville is unrated, we see 7.5 cfs and 2.5 ft deep. (updated 04-18-23)
• Myrtle Brook drains an area of 1.81 sq miles in Greene County. Flow at Edgewood is unrated, this we see around 4 cfs and 4 ft deep. (updated 04-18-23)
• Warner Creek drains an area of 8.71 sq miles in Ulster County. Flow at Chichester is unrated, often measuring around 22 cfs and 2 ft deep. (updated 04-18-23)
• Kinderhook Creek drains an area of 329 sq miles in Columbia County before joining the Hudson River. Normal flow at Rossman is 400 cfs and 3.8 ft deep. (updated 04-18-23)
• Wappinger Creek drains an area of 181 sq miles of Dutchess County; normal flow at Wappinger Falls is around 350 cfs and 3.6 ft deep (flood stage 8ft) (updated 04-18-23)
• Rondout Creek drains an area of 383 sq miles in Ulster County;
• at Lowe’s Corners normal flow is around 90 cfs and 3 ft deep;
• at Rosendale normal flow is around 300 cfs and 9.6 ft deep (flood stage 18 ft)(updated 04-18-23)
• Chestnut Creek drains an area of 20.9 sq miles in Sullivan County. Normal flow at Grahamsville is around 60 cfs and 1.3 ft deep. (updated 04-18-23)
• Croton River drains an area of 378 sq miles of Westchester County into the Croton Reservoir for the New York City water supply. Normal flow at New Croton Dam near Croton-on-Hudson is 300 cfs and 2.4 ft deep. (updated 04-18-23) 

Croton Reservoir 303d listed in 2018 for low dissolved oxygen and total phosphorous in excess of standard

• West Branch Croton River drains 80.4 sq miles of the Croton River basin in Westchester County. The flow
• at Richardsville, flow is unrated, around 10 cfs and 1.2 feet deep is common;
• below dam near Kent Cliffs flow is unrated, 30 cfs and 1.7 ft deep is seen during average conditions;
• near Carmel flow is unrated, can be seen around 10 cfs and under a foot deep;
• near Croton Falls flow is unrated, 75 cfs and 3.5 ft deep is a standard situation (updated 04-18-23)

• East Branch Croton River drains an area of 81 sq miles of the Croton River basin in Westchester County. The flow
• near Putnam Lake is unrated, around 40 cfs and 3.5 ft deep;
• at Brewster flow is unrated, 50 cfs and 3.2 ft deep;
• at Croton Falls normal flow is around 60 cfs and 1.5 ft deep (updated 04-18-23)
• Horse Pound Brook drains an area of 3.94 sq miles in Putnam County, east of the Hudson River, into the New Croton Reservoir. Normal flow near Lake Carmel is 3 cfs and under a foot deep (updated 04-18-23)
• Cross River drains an area of 29.9 sq miles of the Croton River basin in Westchester County.
• near Cross River is unrated, around 16 cfs and 2 ft deep,
• at Katonah flow is unrated, around 20 cfs and 1.4 ft deep. (updated 04-18-23)
• Titicus River drains an area of 23.8 sq miles of the Croton River basin in Westchester County. The flow
• at Salem Centre is unrated, 15 cfs and 2 ft deep;
• at Purdys Station flow is unrated at 16 cfs and 1.7 ft deep; (updated 04-18-23)
• Muscoot River drains an area of 19.7 sq miles of the Croton River basin in Westchester County into the Croton River and New Croton Reservoir. The flow
• below dam at Amawalk is unrated, around 20 cfs and 8.5 ft deep; flood stage is unreported
• at Baldwin Place flow is unrated, around 8.5 cfs and 4 ft deep. (updated 04-18-23)

Muscoot River 303d listed in 2018 for ammonia and low dissolved oxygen

• Wallkill River drains an area of 695 sq miles in Ulster County. The normal flow at Gardiner is 1500 cfs and 4 ft deep (flood stage 13 ft) (updated 04-18-23)

Wallkill River 303d listed in 2022 for pH, and 2018 for total phosphorous.

Low Flows (2)

May 24 17:00 EDT - Hudson River is flowing much below normal at Green Island - running 15.56 ft deep and 6060 cubic feet per second

May 24 17:00 EDT - Walkill River is flowing much below normal at Gardiner - running 2.48 ft deep and 272 cubic feet per second

Impaired Water Bodies (80)

80 distinct water bodies appear on the new Draft list in the Lower Hudson River Watershed.  Note that each lake/reservoir or section of creek/river may have multiple impairments listed, and each impairment has its own line in the official list, but for our purposes here, we count an impaired water body once.  Of the 80 listed, 8 are reservoirs; 14 sites have been put forward for one or more contaminants being delisted. See full listing at wtny.us

• Wiccopee Reservoir (0153) in Putnam County, listed in 2022 for iron in excess of standards
• Melzing Reservoir (0183) in Dutchess County, listed in 2022 for iron
• Vly Creek Reservoir (0234) in Albany County, listed in 2022 for low dissolved oxygen
• Croton Falls Reservoir minor tributaries (0001) in Putnam County
• Browns Pond Reservoir (0013) in Orange County, listed in 2018 for total phosphorous
• Beacon/Cargill Reservoir (0017) in Putnam County, listed in 2022 for dissolved oxygen, iron and pH
• Ashokan Reservoir (0004) in Ulster County, listed in 1998 for silt/sediment is now considered for delisting in 2022 due to flawed original analysis
• Basic Creek Reservoir (0001) in Albany County, listed in 2022 for low dissolved oxygen
• Watervliet Reservoir (0001) in Albany County listed in 2018 for low dissolved oxygen, listed in 2022 for iron and manganese

Drinking Water Advisories (1) confirmed ongoing as of May 19, 2023

May 6 - Saugerties - The town issued a mandatory boil water order for residents of the Bluestone Park water district until further notice on Friday, May 5. The town said to bring the water to a rolling boil for two minutes and allow it to cool before safe use

Hazardous Spills (14) 

• May 15 - unknown amount of home heating oil reported spilled due to equipment failure at a private residence on Union Ave in Newburgh – Orange
• May 15 - 200 gallons of sludge reported spilled on Central Ave in Ossining – Westchester
• May 16 - unknown amounts of unknown material reported spilled at a commercial location on 3rd St in Albany – Albany
• May 18 - unknown amounts of hydraulic oil reported spilled due to equipment failure on Route 28 in West Hurley – Ulster
• May 16 - unknown amounts of diesel reported spilled from Arkville Train Station on NY-28
• May 19 - unknown amounts of home heating oil reported spilled from Amazing Grace Church due to equipment failure on Warn Ave in Pine Bush – Orange
• May 17 - unknown amounts of auto waste fluids reported spilled deliberately from an auto repair shop on Montgomery St in Middletown – Orange
• May 16 - unknown amounts of diesel reported spilled from a powerline on Forester Rd in New Windsor – Orange
• May 18 - unknown amounts of sodium hydroxide reported spilled due to equipment failure on Neelytown Rd in Montgomery – Orange
• May 16 - unknown amounts of home heating oil reported spilled at a private residence due to equipment failure on Haelen Terrace in Middletown – Orange
• May 19 - unknown amounts of home heating oil reported spilled at a private residence due to equipment failure on Thorn Acres Dr in Wappinger Falls – Dutchess
• May 18 - unknown amounts of unknown petroleum reported spilled at a private residence on North Division St in Peekskill – Westchester
• May 17 - 15 gallons of mixed diesel reported spilled due to equipment failure on Route 52 in Hopewell Junction – Dutchess
• May 17 - unknown amounts of home heating oil reported spilled at a private residence due to equipment failure on Todd Rd in Katonah - Westchester

Delaware River Watershed

Delaware River headwaters flow down from the Catskill Mountains into Delaware Bay/Atlantic Ocean.  The watershed area includes East Branch Delaware River, West Branch Delaware River, Neversink River, Mongaup River, Pepacton Reservoir, Cannonsville Reservoir and Neversink Reservoir.

Flows streaming over parts of Delaware, Ulster, Sullivan Counties

• East Branch Delaware River drains an area of 458 sq miles in Delaware County. The flow
• at Roxbury flow is unrated, starts out at around 30 to 60 cfs and 3.5 ft deep;
• at Margaretville, normal flow is around 800 cfs and 4 ft deep (flood stage 11ft) temp and conductance are measured here;
• at Downsville in Delaware County a normal flow in spring is 900 cfs and 4 ft deep (flood stage 9ft) there is a water temperature sensor here;
• at Harvard, normal flow is around 1000 cfs and 4.5 ft deep, (flood stage 10 ft) temp here too;
• at Fishs Eddy normal flow is around 2600 and 5.5 ft deep, (flood stage 13 ft) temperature here; (updated 04-07-23)
• West Branch Delaware River drains an area of 595 sq miles of Delaware County. The flow
• at Hobart flow is unrated, 40 cfs and 1.2 ft deep is common;
• upstream from Delhi normal flow is under 350 cfs and 3 ft deep (flood stage 8ft);
• at Walton in Delaware County, normal flow is less than 1000 cfs and 5 ft deep, (flood stage 9.5) temp and conductivity measured here;
• at Stilesville in Delaware County, the normal flow is under 2000 cfs and 8 ft deep, temp available here;
• at Hale Eddy in Delaware County, normal flow is under 3000 and 5 ft deep, (flood stage 11 ft) temp taken here.; (updated 03-30-23)
• West Brook drains an area of 22 sq miles in Delaware County. The flow at Austin Lincoln Park at Walton is unrated, 100 cfs and 4 ft deep. (updated 03-30-22)
• Town Brook drains 14.3 sq miles in Delaware County. The flow southeast of Hobart is unrated, 50 cfs and 1.8 ft (flood stage 7 ft) (updated 03-30-22)
• Dry Brook drains an area of 82.2 sq miles in Delaware County. The flow at Arkville is unrated, 147.25% above mean at 335 cfs and 2.84 ft deep. (flood stage 10.5 ft) (updated 01-26-23)
• Trout Creek drains an area of 20.2 sq miles in Delaware County direct to the Delaware River. The flow at Trout Creek is normal, 104.9% above mean, 50.1 cfs and 3.63 ft deep (flood stage 6.3 ft). (updated 01-26-23)
• Little Delaware River drains an area of 49.8 sq miles in Delaware County into the Delaware River. The flow near Delhi is normal, 114.6% above mean at 143 cfs and 3.14 ft deep. (updated 01-26-23)
• Platte Kill drains an area of 34.9 sq miles in Delaware County. The flow at Dunraven is normal, 118.4% above mean at 90.3 cfs and 3.48 ft deep (flood stage 7ft) (updated 01-26-23)
• Beaver Kill drains an area of 241 sq miles in Delaware County. The flow at Cooks Falls is above normal, 130.7% above mean at 882 cfs and 3.57 ft deep, (flood stage 10 ft) 2.2°C. (updated 01-26-23)
• Tremper Kill drains an area of 33 sq miles of Delaware County; the flow near Andes is above normal, 150.5% above mean at 121 cfs and 3.27 ft deep, (flood stage 6.8 ft) 2.5°C and 82 µS/cm (updated 01-26-23)
• Mill Brook drains an area of 25.2 sq miles in Delaware County. The flow at Dunraven is above normal, 137.7% above mean at 101 cfs and 3.62 ft deep, 2.6°and 32 µS/cm (updated 01-26-23)
• Neversink River drains an area of 93 sq miles in Ulster, Orange, and Sullivan Counties. Neversink River
• near Claryville in Sullivan County, normal flow is less than 250 cfs and 6.5 ft deep, temp and conductance here;
• at Neversink, normal appears around the 200 cfs and 3.5 ft deep, this station also measures water temp and conductance;
• at Bridgeville flow is unrated, we see this at 500 cfs and 5 ft deep (flood stage 13 ft), temp and conductance provide some indication of water quality here;
• at Godeffroy in Orange County normal flow is under 1000 cfs and 4.5 ft deep (flood stage 10ft), temp and conductance are recorded here. (updated 03-30-23)
• West Branch Neversink River drains an area of 33.8 sq miles in Sullivan County.
• At Winnisook Lake near Frost Valley headwaters, the flow is unrated, a slow flow of 3 cfs and 1.4 ft deep is common, temp and conductance also monitored here;
• at Claryville, normal flow is 100 cfs and 6 ft deep, temp and conductance are available here when the sensors are working (updated 03-30-23)
• East Branch Neversink River drains an area of 22.9 sq miles in Ulster County. The flow
• northeast of Denning flow is not rated, this system starts out around 40 cfs and 1.5 ft deep, we can see the water temp and conductance here;
• near Claryville, normal flow is under 100 cfs and 5 ft deep, temp and conductance is available here; (updated 03-30-23)
• Delaware River drains an area of 1820 sq miles of Delaware County and across the state line to empty into. The flow
• at Lordville flow is unrated, 5000 cfs and 7.8 ft deep are common measurements here, (flood stage 20 ft) temp and conductance sensors at this location;
• at Callicoon, normal flow is 4000 cfs and 4 ft deep, (flood stage 12 ft) temp and conductance sensors at this location;
• near Barryville a normal flow is 5000 cfs and 5 ft deep (flood stage 17ft) temp is recorded here;
• at Port Jervis, normal flow for spring season is 9000 cfs and 5 ft deep; (flood stage 18 ft) temp and conductance sensors at this location. (updated 03-30-23)
• Callicoon Creek drains an area of 110 sq miles in Sullivan County. The flow at Callicoon is regularly around 350 cfs and 2.2 ft deep (flood stage 7ft) with a temp sensor here (updated 03-30-23)
• Mongaup River drains an area of 200 sq miles in Sullivan County. The flow
• near Mongaup Valley is unrated, we see this at around 300 cfs and 4 ft deep (flood stage 14ft);
• near Mongaup normal flow is around 700 cfs and 3.5 ft deep, temp and conductance are recorded here (updated 03-30-23)

Low Flows (4)

May 24 17:00 EDT - Neversink River is flowing much below normal near Claryville - running 6.42 ft deep and 89 cubic feet per second

May 24 17:00 EDT - Platte Kill is flowing much below normal at Dunraven - running 3.01 ft deep and 18.6 cubic feet per second

May 24 17:00 EDT - Mill Brook is flowing much below normal near Dunraven - running 2.93 ft deep and 16.8 cubic feet per second

May 24 17:00 EDT - West Branch Delaware River is flowing much below normal at Walton - running 3.69 ft deep and 193 cubic feet per second

Impaired Water Bodies (25)

25 Water bodies appear on the latest Draft 303(d) list for Delaware River watershed in 2022, with 2 suggestions for delisting, in whole or in part.

For more details, check out the posted list under the Delaware tab.

Hazardous Spills (1)

• May 19 - unknown amounts of raw sewage reported spilled on NY Route 52 in White Sulfur Springs – Sullivan

Housatonic River Watershed

A small portion of the headwaters of the Housatonic lie in eastern New York State. These waters drain the Taconic and Berkshire Mountains before joining the Housatonic and eventually emptying into Long Island Sound.  Includes Tenmile River, Green River, Indian Lake, Swift/Crane Ponds

Flows: parts of Dutchess County

• Housatonic River drains an area of 282 sq miles in Dutchess County. The river itself is not located in New York state, but it does receive run-off from Dutchess County; near Great Barrington, MA the normal spring flows are around 1500 cfs and 4 ft deep; (04-07-23)
• Green River drains an area of 51 sq miles of Dutchess County. The flow
• near Williamstown, MA normal flow is around 200 cfs and 3 ft deep;
• at Great Barrington normal flow is 150 cfs and 1.5 ft deep. (updated 04-07-23)

Low Flows (0)

Impaired Water Bodies (0)

Drinking Water Advisories (0)

Hazardous Spills (0)

• No hazardous spills reported for the period of May 15 – 22^, 2023

Atlantic Ocean/Long Island Sound Watershed

The Atlantic Ocean/Long Island Sound Watershed drains most of the New York City Metropolitan Area and all of Long Island. The drainage area includes all marine waters in New York Harbor, Long Island Sound, Block Island Sound, and along the South Shore of Long Island, and the fresh waters that drain into them.

Includes 1415 square miles of marine estuary waters, the Bronx River, Mamaroneck River, Mianus River, Peconic River, Kensico Reservoir, Lake Ronkonkoma.

Flows taking in run-off from parts of Bronx, Queens, Kings, Suffolk, Nassau and New York Counties

• Bronx River drains an area of 38.4 sq miles of Bronx County. The flow at NY Botanical Garden is unrated, around 200 cfs and 1.3 ft deep is typical (flood stage 3ft) temp and conductance are measured here (updated 04-07-23)
• Valley Stream drains 3.77 sq miles in Nassau County. The flow at Valley Stream has been monitored for 65 years.  Normal flow is around 3 cfs and 1ft deep. (updated 04-07-23)
• East Meadow Brook drains an area of 28.7 sq miles of Nassau County. Normal flow at Freeport is around 5 or 6 cfs and under a foot deep  (updated 04-07-23)
• Massapequa Creek drains an area of 38.6 sq miles in Nassau County. Normal flow at Massapequa is 3 cfs and under a foot deep. (updated 04-07-23)
• Sampawams Creek drains an area of 22.7 sq miles in Suffolk County. Normal flow at New Babylon is 9 cfs and under one foot deep (updated 04-07-23)
• Bellmore Creek tributary drains less than 1 sq mile in Suffolk County. Normal flow near Bellmore is 2 to 3 cfs and 1 ft deep. (04-07-23)
• Connetquot Brook drains an area of 21.9 sq miles in Suffolk County. Normal flow at Central Islip is 25 cfs and 2.5 ft deep. (updated 04-07-23)
• Swan River drains an area of 8 sq miles in Suffolk County. Normal flow at East Patchogue is around 12 to 13 cfs and .5 ft deep. (updated 04-07-23)
• Carmans River drains an area of 73 sq miles in Suffolk County. Normal flow at Yaphank is 24 cfs and 1.3 ft deep (04-07-03)
• Peconic River drains an area of 74.7 sq miles of Suffolk and Nassau Counties. The flow
• at Riverhead normal flow is around 30 cfs and .5 ft deep;
• at County Hwy 105 is not rated, tidal flow depth varies from negative to 1.5 ft deep (flood stage 4.44 ft) temp and conductance are available at this station (updated 04-07-23)
• Mill Neck Creek drains an area of 8.58 sq miles of Nassau County. The normal spring flow at Mill Neck is 8 to 10 cfs and .5 feet deep. (updated 04-07-23)
• Cold Spring Brook drains an area of 7.83 sq miles in Nassau County. The normal flow at Cold Spring Harbour is 3 to 4 cfs and .25 ft deep (updated 04-07-23)

Low Flows (1)

May 24 17:00 EDT - Massapequa Creek is flowing much below normal at Massapequa - running .64 ft deep and 2 cubic feet per second

Impaired Water Bodies (200)

200 water bodies appear on the Draft 303(d) list for Atlantic Ocean/Long Island Sound watershed in 2020-2022, up from 49 sites on the 2018 list.  Of the 200, 49 are proposed for delisting, in whole or in part.

For more details, check out the posted list under the Atlantic/LIS tab.

Drinking Water Advisories (0)

Spills (36)

• May 15 - unknown amount of home heating oil reported spilled due to equipment failure at a private residence on Preston St in Rye – Westchester
• May 15 - unknown amount of home heating oil reported spilled due to equipment failure on Boston Post Rd in Larchmont - Westchester
• May 15 - unknown amount of gasoline and motor oil reported spilled on the roadway due to traffic accident on Einstein Loop in the Bronx – Bronx
• May 15 - unknown amount of hydraulic oil reported spilled on the roadway due to equipment failure on Randall Ave in the Bronx – Bronx
• May 15 - unknown amount of waste oil reported spilled at a private residence on Wilson Ave in Bellmore – Nassau
• May 15 - 50 gallons of hydraulic oil reported spilled in a traffic accident on Ocean Ave and West Merrick Ave in Freeport – Nassau
• May 15 - unknown amount of diesel reported spilled from a drum run on East 39th St in Manhattan - New York
• May 15 - unknown amount of cooking grease reported spilled deliberately in a parking lot on Cross Bay Blvd in Queens – Queens
• May 15 - 65 gallons of jet fuel reported spilled due to equipment failure at JFK Terminal 5 in Queens – Queens
• May 15 - unknown amount of home heating oil reported spilled at an apartment building on 165th St in Queens – Queens
• May 15 - 10 gallons of bilge oil reported spilled from a vessel on Homan Ave in Bay Shore - Suffolk - Watchogue Creek impacted
• May 15 - unknown amount of home heating oil reported spilled at a private residence on Montauk Ave in East Moriches – Suffolk
• May 15 - unknown amount of gasoline reported spilled at Cumberland Farms Gas Station on County Rd in Manorville – Suffolk
• May 15 - unknown amount of unknown petroleum reported spilled in a Canal behind a private home on Riverside Ave in Amityville - Suffolk - Canal impacted
• May 16 - unknown amounts of unknown material reported spilled into Coney Island Creek at Stony Island Creek Park in Brooklyn – Kings
• May 16 - unknown amounts of anti freeze reported spilled on the roadway due to equipment failure on 49th St in Brooklyn – Kings
• May 18 - unknown amounts of unknown material reported spilled at a Municipal office on Neptune Ave in Brooklyn - Kings - Coney Island Creek affected *
• May 18 - unknown amounts of home heating oil reported spilled at a private residence due to equipment failure on Blacksmith Rd South in Levittown – Nassau
• May 19 - unknown amounts of unknown material reported spilled in the creek at Kaiser Park in Brooklyn – Kings
• May 19 - unknown amounts of hydraulic oil reported spilled in the soil on Herricks Rd in Garden City – Nassau
• May 18 - 4400 gallons of feeder oil reported spilled from a crack in the feeder on 1st Ave and 104 St in Manhattan - New York
• May 16 - unknown amounts of unknown material reported spilled at a private residence on East 114th St in Manhattan - New York
• May 18 - 100 gallons of home heating oil reported spilled in a hotel due to equipment failure on Lexington Ave in Manhattan - New York
• May 17 - unknown amounts of home heating oil reported spilled at a private residence due to equipment failure on 144th St in Jamaica – Queens
• May 17 - unknown amounts of diesel reported spilled in the soil due to equipment failure on 73 Place in Queens – Queens
• May 18 - unknown amounts of home heating oil reported spilled due to tank
• May 19 - 5 gallons of mineral oil reported spilled from a transformer due to equipment failure on 20th Ave in Astoria - Queens test failure at an apartment complex on 155 Ave in Howard Beach – Queens
• May 19 - unknown amounts of dielectric fluid reported spilled on the street due to equipment failure on Union Turnpike in Queens – Queens
• May 19 - unknown amounts of unknown material reported spilled at a private residence on Bryant Ave in Staten Island – Richmond
• May 19 - 75 gallons of fire-retardant foam reported spilled from a vehicle fire on South St Parkway in West Babylon – Suffolk
• May 18 - unknown amounts of gasoline reported spilled from Marlena’s Yacht Club on West Lake Dr in Montauk - Suffolk
• May 16 - 45 gallons of compressor oil reported spilled from the department of energy due to equipment failure on Bell Ave in Upton – Suffolk
• May 16 - unknown amounts of gasoline reported spilled at a private residence on Hunters Run in Dobbs Ferry – Westchester
• May 18 - unknown amounts of home heating oil reported spilled at a private residence due to equipment failure on Devoe Ave in Yonkers – Westchester
• May 18 - unknown amounts of unknown petroleum reported spilled at a private residence on North Division St in Peekskill – Westchester
• May 16 - unknown amounts of waste oil reported spilled from abandoned drums on Bruckner Blvd – Northbound - Westchester
• May 16 - unknown amounts of diesel reported spilled from Arkville Train Station on NY-28 - Westchester

North-East Watersheds emptying into Atlantic Ocean via St. Lawrence River

Lake Champlain Watershed

The Lake Champlain Watershed drains the area between the Adirondack Mountains in northeastern New York State and the Green Mountains in northwestern Vermont.

Includes the Ausable River, Saranac River, Great Chazy River, Boquet River, Mettawee River, Ticonderoga Creek/Lake George, Lake George,

Upper Saranac Lake, Lower Saranac Lake, Lake Placid, Lake Champlain

Flows concerning parts of Washington, Essex, and Clinton Counties

• Mettawee River drains an area of 167 sq miles of Washington County into Lake Champlain. Normal flow near Middle Granville is around 350 cfs and 4.3 feet deep (flood stage 7 ft) (updated 04-07-23)
• Boquet River drains an area of 207 sq miles of Essex County. The flow at Willsboro is around 2000 cfs and 5 ft deep. (updated 04-18-23)
• Ausable River drains an area of 198 sq miles of Clinton County. The flow near Au Sable Forks is around 3200 cfs and 4 ft deep (updated 04-18-23)
• East Branch Ausable River drains an area of 198 sq miles in Essex County. The flow at Au Sable Forks is around 1800 cfs and 4 ft deep; (updated 04-18-23)
• Little Ausable River near Valcour normal flow is 200 cfs and 2 ft deep. (updated 04-18-23)
• Salmon River drains an area of 63 sq miles in Clinton County. Normal flow at South Plattsburgh is 250 cfs and 2.5 ft deep (updated 04-18-23)
• Saranac River drains an area of 608 sq miles. Normal flow at Plattsburgh is 2400 cfs and 5.5 ft deep (flood stage 9ft) (updated 04-18-23)
• Great Chazy River drains an area of 243 sq miles in Clinton County. Normal flow at Perry Mills is 1250 cfs and 4.5 ft deep, (flood stage 9ft) (updated 04-18-23)
• Little Chazy River drains an area of 50 sq miles in Clinton County. Normal flow near Chazy is 225 cfs and 2.5 feet deep. (updated 04-18-23)

Low Flows (1)

May 24 17:00 EDT - East Branch Ausable River is flowing much below normal at Ausable Forks - running 2.44 ft deep and 1040 cubic feet per second

Impaired Water Bodies (29)

29 water bodies appear on the 2022 Draft 303(d) list for Lake Champlain Watershed up from 6 in the last list. Of the 29 total, 12 water bodies are proposed for delisting, in whole or in part. 

For more details, check out the posted list under the NE tab.

Drinking Water Advisories (0)

Spills (6)

• May 15 - unknown amount of hydrocarbons reported spilled due to equipment failure on Ryder Rd in Whitehall – Washington
• May 15 - unknown amount of iron bacteria reported spilled at a construction site on Sunset Dr in Plattsburgh – Clinton
• May 15 - unknown amount of transformer oil reported spilled due to equipment failure at Lake Placid Municipal Electric on Baxter Way in Lake Placid – Essex
• May 16 - unknown amounts of unknown petroleum reported spilled on Sunset Dr in Plattsburgh – Clinton
• May 16 - unknown amounts of unknown petroleum reported spilled on Main St in Saranac Lake – Franklin
• May 17 - unknown amounts of engine oil reported spilled into the soil from equipment failure on Lake Rd in Putnam Station - Putnam

St. Lawrence River Watershed

185 km of the St. Lawrence River catches the runoff from the northern and western Adirondack Mountains, drawing from portions of eight states, a combined area of 5600 square miles.

St. Lawrence Watershed collects the flow from eleven thousand miles of freshwater rivers and streams, including the Oswegatchie River, Raquette River, Saint Regis River, Grass River and Indian River; including Black Lake, Cranberry Lake, Raquette Lake, Tupper Lake and Long Lake.  Densely forested woodlands, peatlands and areas of flat agricultural plains make up the natural surface water filtration system of this watershed area.

Flows:  parts of St. Lawrence and Franklin Counties

• Raquette River drains 1125 sq miles of St. Lawrence County. The flow
• at Piercefield normal flow is less than 1500 cfs and 6.4 ft deep (flood stage 12.5 ft);
• at South Colton, normal is around 2000 cfs and 5 feet deep (flood stage is 10ft);
• at Raymondville the normal flow is around 2500 cfs and 3.5 ft deep (updated 04-07-23)
• Regis River drains an area of 612 sq miles in St. Lawrence County. The normal flow at Brasher Centre is less than 3000 cfs and 6 ft deep (floods at 11ft).  (updated 04-07-23)
• West Branch St. Regis River drains an area of 171 sq miles in St. Lawrence County. Normal flow near Parishville is around 500 cfs and 2 ft deep (updated 04-07-23)
• Little Salmon River drains an area of 92 sq miles of Franklin County. The normal flow at Bombay is 300 cfs and 3 ft deep. (updated 04-07-23)
• Grass River drains an area of 598 sq miles in Franklin County. The flow at Chase Mills is unrated, we have seen this at 3000 cfs and 5.8 ft in spring  (updated 04-07-23)
• Oswegatchie River drains an area of 986 sq miles in St. Lawrence County. Normal flows 
• near Oswegatchie is under 900 cfs and 3.5 ft deep;
• near Heuvelton, 3760 cfs and 4 ft deep. (updated 03-24-23)
• West Branch Oswegatchie River drains an area of 258 sq miles in St. Lawrence County. The normal flow near Harrisville is around 500 cfs and 3 ft deep. (updated 04-07-23)

Low Flows (3)

May 24 17:00 EDT - Raquette River is flowing much below normal at Raymondville - running 2.44 ft deep and 1040 cubic feet per second

May 24 17:00 EDT - Little Salmon River is flowing much below normal at Bombay - running 2.5 ft deep and 42.3 cubic feet per second

May 24 17:00 EDT - Oswegatchie River is flowing much below normal near Oswegatchie - running 2.34 ft deep and 210 cubic feet per second

 Impaired Water Bodies (41)

41 water bodies appear on the 2022 Draft 303(d) list for St. Lawrence Watershed, up from 4 in the last list. Of the 41 total, 5 are proposed for delisting, in whole or in part. 

For more details, check out the posted list under the NE tab.

Drinking Water Advisories (2) confirmed ongoing as of May 17, 2023

April 17 - Clayton (Jefferson) Boil water advisory issued by Village of Clayton because of a water main break, customers in Water District 5 are advised to boil water until further notice.

April 17 - Cape Vincent (Jefferson) – Boil Water Advisory issued for customers of Water District 5 following a house fire and subsequent water main break on McKeever Road.

Spills (0)

• No hazardous spills reported for the period of May 15 – 22^, 2023

North-West Watersheds

emptying into Atlantic Ocean via Great Lakes and St. Lawrence River

Lake Ontario and Minor Tributaries

This watershed drains 2460 square miles of northwest New York State, including three areas between the Niagara, Genesee, Oswego and Black Rivers) .  It is divided into western, central and eastern sections that stretch all along the Lake Ontario Shoreline.

*Includes Salmon River Reservoir, Sodus Bay, North Pond, Irondequoit Bay and Perch Lake, Salmon River, Oak Orchard Creek, Irondequoit Creek, Sandy Creek

Flows considering most of Jefferson and Orleans Counties, parts of Monroe, Oswego, Wayne and Niagara Counties

• Northrup Creek drains an area of 10.1 sq miles in Monroe County. The flow at North Greece in Monroe County is normal, 55.1% above mean at 8.28 cfs and holding depth around 1.21 ft deep and 1.2°C (updated 01-28-23)
• Sandy Creek drains an area of 137 sq miles in Jefferson County. The flow at Adams is ice affected, --% above mean at -- cfs and 2.42 ft deep. (updated 01-28-23)
• North Branch Salmon River drains an area of 82.5 sq miles in Oswego County. The flow at Redfield is ice affected, ---% above mean at ---cfs and 2.09 ft deep. (updated 01-28-23)
• Salmon River drains 238 sq miles in Oswego County. The flow at Pineville is unrated, 92.3% above mean at 1030 cfs and 10.63 feet deep. (updated 01-28-23)
• Eighteenmile Creek drains an area of 84.8 sq miles in Niagara County. The flow at Burt is unrated, 48.3% above historical mean, 110 cfs and 3.06 ft deep, 1.3°C and 900 µS/cm; (updated 01-28-23)
• Oak Orchard Creek drains an area of 202 sq miles in Orleans County. The flow
• near Shelby is unrated, around 270 cfs and 8 ft deep, temp and conductance are taken here;
• at Kenyonville flow is unrated, around 350 cfs and 2.5 ft deep, with temp and conductance monitors here also (updated 04-12-23)
• Irondequoit Creek drains an area of 142 sq miles in Monroe County. The flow
• near Fishers flow is unrated, around 40 cfs and 4.5 ft deep;
• above Blossom Rd. near Rochester normal flow is around 150 cfs and 3.5 ft deep, conductance is measured here (updated 04-12-23)

Low Flows (0)

Impaired Water Bodies (56)

56 water bodies appear on the 2022 Draft 303(d) list for Lake Ontario and minor tributaries Watershed, up from six in the last list. Of the 56 total, 38 are affected by a proposed delisting in 2022, in whole or in part. 

For more details, check out the posted list under the NW tab.

Spills (4)

• May 15 - unknown amount of home heating oil reported spilled at a private residence on Richardson Rd in Victor – Ontario
• May 15 - 1 gallon of benzopyrene reported spilled on Commercial St in Medina – Orleans
• May 19 - unknown amounts of hydraulic oil reported spilled from a tech training center on Allen St in Brockport – Monroe
• May 18 - unknown amounts of hydraulic oil reported spilled from Casella Pavement and Soil due to equipment failure on Mount Dr in Irondequoit - Monroe

Black River Watershed

The Black River headwaters begin in the Adirondack mountains, scoop southwest and then curve northwest, the flow proceeds north-northwest, hooks west and empties into Lake Ontario.  Major tributaries in the system include Moose River, Beaver River, Independence River and Deer River, Stillwater Reservoir, Fulton Chain of Lakes, Lake Lila and Big Moose Lake.

Flows:  Filters and drains most of Jefferson and Lewis Counties along with parts of Herkimer, Hamilton, and Oneida Counties. 

• Black River drains an area of 1864 sq miles of Jefferson County. The flow
• near Boonville normal flow is around 1600 cfs and 6 feet deep (flood stage 10ft);
• at Watertown normal flow is 7500 cfs and 6 feet deep (flood at 10ft). (updated 04-12-23)
• Beaver River drains 291 sq miles in Lewis County. Normal flow at Croghan is around 450 cfs and 3.5 ft deep. (updated 04-12-23)
• Independence River drains an area of 88.7 sq miles in Lewis County. Normal flow at Donnatsburgh is around 400 cfs and 4 feet deep, temp is monitored here (updated 04-12-23)

Low Flows (0)

Impaired Water Bodies (34)

34 water bodies appear on the 2022 Draft 303(d) list for Black River Watershed, up from one in the last list. Of the 34 total, 2 are proposed for delisting in 2022, in whole or in part. 

For more details, check out the posted list under the NE tab.

Drinking Water Advisories (0)

Spills (0)

• No hazardous spills reported for the period of May 15 – 22^, 2023

Niagara River/Lake Erie Watershed

Draining an area encompassing more than 265,000 square miles in the north central United States and south-central Canada, including Tonawanda Creek, Cattaraugus Creek, Buffalo River; Attica Reservoir and Lime Lake.

Flows: parts of Niagara, Wyoming and Erie Counties

• Tonawanda Creek drains an area of 349 sq miles in Niagara, Genesee and Wyoming Counties.
• Normal flow at Attica is around 250 cfs and 4 ft deep (flood stage 8ft);
• Normal flow at Batavia in Genesee County is around 800 cfs and 4 ft deep (flood stage 9ft);
• Normal flow at Rapids is around 1000 cfs and 4 ft deep (flood stage 12ft) (updated 04-07-23)
• Ellicott Creek drains an area of 82 sq miles in Niagara County. The normal flow at Williamsville is around 200 cfs and 2.5 ft deep (flood stage 8ft). (updated 04-07-23)
• Cayuga Creek drains an area of 96 sq miles in Erie County. The normal flow at Lancaster is around 200 cfs and 4 ft deep (flood stage 8ft) (updated 04-07-23)
• Cazenovia Creek drains an area of 135 sq miles in Erie County. The normal flow at Ebenezer is 350 cfs and 3 ft deep. (flood stage 10 ft) (updated 04-07-23)
• Buffalo Creek drains an area of 142 sq miles in Erie County. The normal flow measured at Gardenville is 400 cfs and 2 ft deep (flood stage 7ft) (updated 04-07-23)
• Cattaraugus Creek drains an area of 436 sq miles in Erie County. The normal flow at Gowanda is around 1500 cfs and 3 ft deep, (flood stage 10ft) temp and conductance are taken here (updated 04-07-23)
• Eighteenmile Creek drains an area of 36.6 sq miles in Erie County. The flow
• Normal flow at Hamburg is 100 cfs and 3 ft deep;
• S Branch flow at Bley Rd at Eden Valley is unrated, we have seen this around 80 cfs and 3.5 ft deep. (updated 04-07-23)
• Big Sister Creek drains an area of 48.4 sq miles in Erie County. The flow at Evans Center is unrated, can be around 100 cfs and 3.5 ft deep. (updated 04-07-23)
• Canadaway Creek drains an area of 32.9 sq miles in Cattaraugus County. The flow at Fredonia is unrated, a common measurement is around 65 cfs and 2.8 ft deep. (updated 04-07-23)
• Chautauqua Creek drains an area of 35 sq miles in Chautauqua County. The flow below Westfield is unrated, it can be around the 80 cfs and 1 ft deep (updated 04-07-23)

Low Flows (0)

Impaired Water Bodies (49)

49 water bodies appear on the 2022 Draft 303(d) list for Niagara River and Lake Erie Watershed, up from 11 on the last list. Of the 49 total, 24 are affected by a proposed delisting in 2022, in whole or in part. 

For more details, check out the posted list under the NW tab.

Drinking Water Advisories (0)

Spills (9)

• May 18 - unknown amounts of unknown petroleum reported spilled in a residential area on Crestwood Dr in Lockport – Niagara
• May 16 - 660 gallons of refrigerant released due to equipment failure on Royal Ave in Niagara Falls – Niagara
• May 16 - 25 gallons of propylene glycol reported spilled from a national fuel gas station on Nash Rd in Wheatfield – Niagara
• May 17 - unknown amounts of unknown petroleum reported spilled at Sail Buffalo Pier on Furman Blvd in Buffalo – Erie
• May 16 - unknown amounts of unknown fuel reported spilled from Hamburg Middle School on Division St in Hamburg – Erie
• May 16 - 40 gallons of diesel reported spilled from a pickup truck due to equipment failure on Ridge Rd in Lackawanna – Erie
• May 17 - unknown amounts of unknown petroleum reported spilled at USGC due to equipment failure on Furman Blvd in Buffalo – Erie
• May 16 - unknown amounts of unknown material reported spilled on Lake Ave in Blasdell – Erie
• May 18 - unknown amounts of motor oil reported spilled from a vehicle at Jerome SR Apartments on Bank St in Batavia - Genesee

Genesee River Watershed

 Genesee River originates in north central Pennsylvania.  The Genesee runs right through New York state, flowing generally north from the south state line up to Lake Ontario at Rochester.  The watershed includes the following tributary flows, lakes and reservoirs: Conesus Lake, Silver Lake, Mount Morris Reservoir, Hemlock Lake, Honeoye Lake; Cassadaga Creek, Honeoye Creek, Oatka Creek, Black Creek

 Flows parts of Monroe, Livingston, and Allegany Counties

• Genesee River drains an area of 2474 sq miles in Monroe, Livingston and Allegany Counties.
• Normal flow at Wellsville in Allegany County is around 350 cfs and 5 ft deep (flood stage 11 ft);
• at Portageville in Wyoming County normal flow is around 1000 cfs and 9.95 ft deep (flood stage 19ft);
• near Mount Morris in Livingston County normal flow is around 1750 cfs and 5 ft deep;
• at Avon normal flow is 2200 cfs and 21 ft deep (flood stage 33 ft);
• flow is unrated at Ballantyne Bridge near Mortimer, it often is around 3000 cfs and 12 ft deep;
• at Ford St. Bridge in Rochester, Monroe County, normal flow will be around 4000 cfs and 12 ft deep, temp and conductance are observed and recorded here (updated 04-07-23) 
• Allen Creek drains an area of 28.9 sq miles in Monroe County. The normal flow near Rochester is around 30 cfs and 2.5 ft deep with temperature monitor (updated 04-07-23)
• Honeoye Creek drains an area of 196 sq miles of Monroe County. The normal flow at Honeoye Falls in Monroe County is around 120 cfs and 3 ft deep (flood stage 6.5 ft) (updated 04-07-23)
• Conesus Creek drains an area of 72 sq miles in Livingston County. Normal flow near Lakeville in Livingston County is 200 cfs and 2.5 ft deep. (updated 04-07-23)
• Canaseraga Creek drains an area of 88.9 sq miles of Livingston County.
• Normal flow above Dansville is around 80 cfs and under a foot deep;
• at Shakers Crossing in Livingston County normal flow is around 280 cfs and 4 ft deep. (updated 04-07-23)
• Keshequa Creek drains an area of 68.3 sq miles in Livingston County, flowing north to join Genesee River. The flow at Sonyea is unrated, about 50 cfs and under a foot deep (updated 04-07-23)
• Oatka Creek drains an area of 200 sq miles in Monroe County. The flow
• at Warsaw normal flow is around 60 cfs and 3 ft deep;
• at Garbutt normal flow is around 300 cfs and 3 ft deep (flood stage 6ft). (updated 04-07-23)
• Black Creek drains an area of 130 sq miles in Monroe County. The normal flow at Churchville is around 180 cfs and 2.5 ft deep, (flood stage 6ft) (updated 04-07-23)

Low Flows (1)

May 24 17:00 EDT - Canaseraga Creek is flowing much below normal above Dansville - running .48 ft deep and 31.7 cubic feet per second

Impaired Water Bodies (23)

23 water bodies appear on the 2022 Draft 303(d) list for Genesee River Watershed, up from 11 in the last list. Of the 23 total, 6 are affected by a proposed delisting in 2022, in whole or in part. 

For more details, check out the posted list under the NW tab.

Drinking Water Advisories (0)

Spills (2)

• May 19 - 900 gallons of pre-grade oil reported spilled from a Cool Whip Plant on Spring St in Avon – Livingston
• May 19 - unknown amounts of unknown material reported spilled into TSC Industry Retention Pond on Trabold Rd in Rochester - Monroe

Oswego River and Finger Lakes Watershed

 The Oswego River originates in the Adirondacks, with the combined flows of the Seneca River and many tributaries, drains a large area of north New York to Lake Ontario.  The water bodies found in this drainage basin include the Finger Lakes: Otisco, Skaneateles, Owasco, Cayuga, Oneida, Seneca, Keuka, Canandaigua and Canadice Lakes; Oneida River, Clyde River, Cayuga Lake Tributaries and Seneca Lake Tributaries

Flows draining parts of Oswego, Madison, Cayuga, Tompkins, Seneca, Onondaga, Yates and Ontario Counties

• Oswego River drains an area of 5100 sq miles of Oswego, Madison, Cayuga, Tompkins, Seneca, Onondaga, Yates and Ontario counties. The flow
• near Phoenix is not rated, can be around 10000 cfs and 3.5 ft deep;
• at Lock 7 in Oswego County normal flow is around 18000 and 8.5 ft deep; temp and conductance are measured here (updated 04-07-23)
• Seneca River drains an area of 3130 sq miles of Onandaga County.
• near Seneca Falls flow is unrated, often around 1000 cfs and 3.8 ft deep;
• at Free Bridge Corners flow is unrated, gets to running 3500 cfs and 9 ft deep;
• near Port Byron flow is unrated, usually under 6000 cfs and 6 ft deep;
• near Baldwinsville in Onondaga County normal flow is 6000 cfs and 3.5 ft deep (updated 04-07-23)
• Ganaragua Creek drains an area of 115 sq miles in Wayne County before joining the Oswego River. The flow at Macedon is unrated, 100 cfs and 2.5 ft deep is common (updated 04-07-23)
• Canandaigua Outlet drains 195 sq miles of Ontario County. The normal flow at Chapin in Ontario County is 200 cfs and 3 ft deep (flood stage 7ft) (updated 04-07-23)
• Owasco Inlet drains an area of 106 sq miles in Cayuga County. The flow
• below Aurora St at Moravia is unrated, often around 220 cfs and 3 ft deep;
• at Owasco Outlet at Genesee St Auburn is unrated, we see this water flowing around 700 cfs and 3.8 ft deep (flood stage 8 ft) (updated 04-18-23)
• Skaneateles Creek drains an area of 85.9 sq miles in Onandaga County. The flow at Skaneateles Junction is unrated, around 35 cfs and 2 ft deep. (updated 04-18-23)
• Flint Creek drains an area of 102 sq miles of Ontario County. Normal flow at Phelps in Ontario County is around 100 cfs and 2 ft deep.  (updated 04-18-23)
• Keuka Lake drains an area of 207 sq miles in Yates County. At the outlet near Dresden in Yates County, the normal flow 350 cfs and 3.5 ft deep. (updated 04-18-23)
• Fish Creek drains an area of 403 sq miles in Oneida County. The flow at Becks Grove is unrated, can be seen around 1000 cfs and 6.5 ft deep.  (updated 04-18-23)
• East Branch Fish Creek drains 188 sq miles in Oneida County. Normal flow at Taberg is 480 cfs and 5.2 ft deep. (updated 04-18-23)
• Oneida Creek drains an area of 113 sq miles in Oneida County. Normal flow at Oneida is around 250 cfs and 2.5 ft deep (flood 11ft) (updated 04-18-23)
• Oneida River drains an area of 1349 sq miles of Oneida County. The flow near Euclid is unrated, around 4500 cfs and 3.5 ft deep (updated 04-18-23)
• Scriba Creek drains an area of 38.4 sq miles in Oswego County. The flow at Constantia is unrated, around 80 cfs and 2.5 ft deep. (updated 04-18-23)
• Chittenango Creek drains an area of 66.3 miles of Madison County, flowing into Oneida Lake, into Oneida River and joining the Oswego River. The flow near Chittenango is unrated, around 160 cfs and 2 ft deep. (flood stage 6ft) (updated 04-18-23)
• Onondaga Creek drains an area of 110 sq miles of Onandaga County.
• at Dorwin Ave in Syracuse normal flow is around 175 cfs and 2.3 ft deep, (flood stage 5 ft)
• normal flow at Spencer St in Syracuse is around 200 cfs and 3.3 ft deep. (updated 04-18-23)
• Salmon Creek drains an area of 87.7 sq miles in Tompkins County. The flow at Ludlowville is unrated, often measuring around 160 cfs and 1.3 ft deep. (updated 04-18-23)
• Sixmile Creek drains an area of 39 sq miles in Tompkins County.
• at Brooktondale flow is unrated, measures around 50 cfs and under a foot deep;
• at Bethel Grove flow is unrated, around 55 cfs and 1.4 ft deep. (updated 04-18-23)
• Fall Creek drains an area of 126 sq miles of Tompkins County. Normal flow near Ithaca is around 230 cfs and 1.5 ft deep (flood stage 6ft). (updated 04-18-23)

Low Flows (0)

Impaired Water Bodies (40)

40 water bodies appear on the 2022 Draft 303(d) list for Oswego River Watershed, up from 7 in the last list. Of the 40 total, 11 are affected by a proposed delisting in 2022, in whole or in part. 

For more details, check out the posted list under the NW tab.

Drinking Water Advisories (0)

Spills (4)

• May 15 - unknown amount of raw sewage reported spilled at a private residence on Route 13 in Chittenango – Madison
• May 18 - unknown amounts of motor oil - auto waste fluids and anti freeze reported spilled from Fenix Parts on Creek Rd in Palmyra – Wayne
• May 19 - unknown amounts of hydraulic oil and 10 gallons of antifreeze reported spilled from Ontario County Landfill due to equipment failure on Route 5 in Stanley – Ontario
• May 16 - unknown amounts of motor oil reported spilled from abandoned drums at a private residence on Route 414 in Seneca Falls - Seneca

South/West Watersheds

Allegheny:  emptying into Gulf of Mexico via Ohio River/Mississippi River; Chemung and Susquehanna emptying into Atlantic Ocean via Chesapeake Bay

Allegheny River Watershed

 (flowing west into Ohio River system)

 The Allegheny River originates in Pennsylvania, curving north to take a short loop through southwest New York and back down into PA.  Tributaries to the Allegheny system include Chadakoin River, Conewango Creek, Cassadaga Creek, Olean Creek, Great Valley Creek, French Creek.  Important water bodies include the Allegheny Reservoir and popular recreational destination, Chautauqua Lake.

Flows taking in parts of Chautauqua and Cattaraugus County

• Chadakoin River drains an area of 194 sq miles of Chautauqua County. Normal flow at Falconer is around 700 cfs and 2.5 ft deep (flood stage 4ft) (04-18-23)
• Allegheny River drains an area of 1608 sq miles of Cattaraugus County. The flow
• at Olean is unrated, around 2000 cfs and 3.7 ft deep (flood stage 12 ft);
• at Salamanca normal flow is around 2800 cfs and 4.4 ft deep, (flood stage 12 ft) temperature is recorded here (updated 04-18-23)
• Dodge Creek drains an area of 47.7 sq miles in Cattaraugus County. The flow at Portville is unrated, 3.8 ft deep (updated 04-18-23)

Low Flows (1)

May 24 17:00 EDT - Allegheny River is flowing much below normal at Salamanca - running 3.21 ft deep and 878 cubic feet per second

Impaired Water Bodies (14)

14 water bodies appear on the 2022 Draft 303(d) list for Allegheny River Watershed, up from 8 in the last list. Of the 14 total, 2 are affected by a proposed delisting in 2022, in whole or in part. 

For more details, check out the posted list under the SW tab.

Drinking Water Advisories (0)

Spills (0)

• No hazardous spills reported for the period of May 15 – 22^, 2023

Chemung River Watershed

The Chemung River flows across the western portion of Southern Tier of New York State before joining the Susquehanna River and eventually emptying into the Chesapeake Bay.

Including Chemung River, Cohocton River, Tioga River, Canisteo River; Lamoka Lake/Mill Pond, Waneta Lake, Almond Lake

Flows: washing over parts of Steuben and Chemung Counties

• Chemung River drains an area of 2506 sq miles in Steuben and Chemung Counties. The flow
• at Corning normal flow is around 1700 cfs and 16 ft deep (flood stage is 29ft);
• at Elmira in Chemung County, flow is unrated around 2000 cfs and 2 ft deep (flood stage 12 ft);
• at Chemung normal flow is 2500 cfs and 5 ft deep. (flood stage 16 ft) (updated 04-18-23)
• Canisteo River drains an area of 40 sq miles of Steuben County. The flow
• at Arkport normal flow is around 30 cfs and 1 ft deep;
• below Canacadea Creek at Hornell in Steuben County normal flow is around 100 cfs and 1.3 ft deep (flood stage 9ft);
• at West Cameron in Steuben County flow is normal, 300 cfs and 4.5 ft deep (flood stage 17ft). (updated 04-18-23)
• Canacadea Creek drains an area of 57.9 sq miles in Steuben County. Normal flow is around 110 cfs and 1.2 ft deep.  (flood stage 5ft)(updated 04-18-23)
• Cohocton River drains an area of 370 sq miles of Steuben County. The flow
• near Avoca flow is unrated, around 250 cfs and 3 ft deep (flood stage 9ft);
• at Bath flow is 3.7 ft deep (flood stage 11ft);
• near Campbell in Steuben County normal flow is around 600 cfs and 3.5 ft deep (flood stage 10ft). (updated 04-18-23)
• Tuscarora Creek drains an area of 102 sq miles sq miles in Steuben County before joining the Tioga River, flowing north to the Chemung system. The flow above South Addison is unrated, around 80 cfs and under a foot deep (flood stage 9 ft) (updated 04-18-23)
• Tioga River drains an area of 1377 sq miles in Steuben County. The flow at headwaters in PA,
• at Tioga Junction, PA normal flow is 90 cfs and 5.5 ft deep, temp and conductance is measured here;
• at Lindley, NY, normal flow is around 900 cfs and 5 ft deep;
• near Erwins normal flow is around 1500 cfs and 2.7 ft deep (flood stage 18ft); (updated 04-18-23)

Low Flows (1)

May 24 17:00 EDT - Tioga River is flowing much below normal at Lindley - running 3.3 ft deep and 159 cubic feet per second

Impaired Water Bodies (9)

9 water bodies appear on the 2022 Draft 303(d) list for Chemung River Watershed, up from one in the previous list. Of the 9 total, 2 are affected by a proposed delisting in 2022, in whole or in part. 

For more details, check out the posted list under the SW tab.

Drinking Water Advisories (0)

Spills (3)

• May 19 - unknown amounts of paint reported spilled into Canacadea Stream from a drain on Saxton Dr in Alfred - Allegany - Canacadea Creek affected *
• May 16 - unknown amounts of raw sewage reported spilled at a private residence on Greene Acres in Bath – Steuben
• May 16 - 85 gallons of hydraulic oil reported spilled due to equipment failure on Addison Rd in Painted Post - Steuben

Susquehanna River Watershed

The Susquehanna River drains 27,500 square miles covering large parts of New York, Pennsylvania and Maryland before emptying into the Chesapeake Bay. The flow begins in south New York State and flows in a westerly direction close to the south state line before departing into PA.

Including: Chenango River, Tioughnioga River, Unadilla River, Owego Creek; Otsego Lake, Canadarago Lake, Whitney Point Lake/Reservoir

Flows parts of Otsego, Broome, Chenango and Cortland Counties

• Susquehanna River drains an area of 4773 sq miles of Otsego and Broome Counties, flows from its headwaters at Otsego Lake in a south-westerly direction, crossing the border into Pennsylvania near Waverly NY. The flow
• Normal flow at Unadilla is around 2200 cfs and 4.8 (flood stage 11 ft) ft deep;
• at Bainbridge flow is unrated, we have seen it around 3500 cfs and 4.5 ft deep (flood stage 15 ft);
• at Windsor, flow is unrated, around 3500 cfs and 6.29 ft deep (flood stage 17ft);
• at Conklin flow is normal, 110.5% above mean at 4900 cfs and 6 ft deep (flood stage 12 ft);
• at Binghamton, the flow is not rated, 3.7 ft deep, (flood stage 14 ft);
• at Vestal in Broome County normal flow is 6500 cfs and 6.5 ft deep (flood stage 18 ft);
• at Owego flow is unrated, 7000 cfs and 16 ft deep (flood stage 30 ft);
• at Waverly, normal flow is 8000 cfs and 4 ft deep (flood stage 13 ft). (updated 04-18-23)
• Owego Creek drains an area of 185 sq miles in Tioga County. Normal flow near Owego is unrated, often around 300 cfs and under 2 ft deep (flood stage 9 ft) (updated 05-07-23)
• Chenango River drains an area of 1483 sq miles in Broome and Chenango Counties. The flow
• Normal flow at Sherburne is around 400 cfs and 3 ft deep (flood stage 8.5 ft);
• at Oxford in Chenango is unrated, we see this around 650 cfs and 9.3 ft deep;
• normal flow at Greene in Chenango County flow is around 1000 and 4 ft deep; (flood stage 13 ft)
• normal flow at Chenango Forks in Broome County is around 2500 cfs and 4.2 ft deep (flood stage 10ft). (updated 04-18-23)
• Tioughnioga River drains an area of 292 sq miles in Cortland County. The flow
• Normal flow at Cortland is around 700 cfs and 4 ft deep;
• at Lisle, unrated, measuring around 3.2 ft deep (flood stage 9ft);
• at Itaska the flow is not rated, flows measure around 3 to 3.5 ft deep (flood stage 7 ft). (updated 04-18-23)
• Otselic River drains an area of 147 sq miles in Cortland County. Normal flow at Cincinnatus is around 250 cfs and 2 ft deep (flood stage 9 ft) (updated 04-18-23)
• Unadilla River drains an area of 520 sq miles of Chenango County. Normal flow at Rockdale is around 1000 cfs and 5 ft deep (flood stage 11 ft). (updated 04-18-23)
• Ouleout Creek drains an area of 103 sq miles in Delaware County. Normal flow at East Sydney is 250 cfs and 2 ft deep (flood stage 4.5 ft) (updated 04-18-23)

Low Flows (1)

May 24 17:00 EDT - Susquehanna River is flowing much below normal at Unadilla - running 3.19 ft deep and 603 cubic feet per second

Impaired Water Bodies (18)

18 water bodies appear on the 2022 Draft 303(d) list for Susquehanna River Watershed, up from three in the last listing.  For more details, check out the posted list under the SW tab.

Drinking Water Advisories (0)

Spills (4)

• May 16 - 275 gallons of home heating oil reported spilled in a vacant lot on Hicks Hill Rd in McGraw – Cortland
• May 16 - unknown amounts of home heating oil reported spilled at a private residence due to equipment failure on County Route 32 in Norwich – Chenango
• May 17 - unknown amounts of home heating oil reported spilled due to equipment failure on Ford Ave in Oneonta – Otsego
• May 17 - 200 gallons of transformer oil reported spilled due to equipment failure on Chenango St in Binghampton - Broome

Ramapo River Watershed

The northern headwaters of the Passaic basin lie within a small portion of southeastern New York State, including the Ramapo and Hackensack Rivers drainage areas, flowing south through New Jersey with outlet into the Atlantic at Chesapeake Bay.  Including Ramapo River, Hackensack River, Greenwood Lake, DeForest Lake.

Flows: concerned with parts of Rockland and Orange Counties

• Mahwah River drains an area of 12 sq miles in Rockland. Normal flow near Suffern is around 50 cfs and 2.5 feet deep (flood stage 5ft) (updated 04-18-23)
• Ramapo River drains an area of 93 sq miles in Rockland County. The flow
• at Ramapo normal flow is around 300 cfs and 3.5 ft deep (flood stage is 10 ft);
• normal flow near Mahwah NJ is under 500 cfs and 4 ft deep (flood stage 8ft);
• at Suffern, normal flow is under 500 cfs and 4 ft deep (flood stage is 15.2ft)
• Hackensack River drains an area of 30.7 sq miles in Rockland County. Normal flow at West Nyack is under 100 cfs and 3.5 ft deep. (updated 04-18-23)

Low Flows (0)

Impaired Water Bodies (14)

14 Water bodies appear on the Draft 303(d) list for Ramapo River watershed in 2022, with 5 proposed for delisting, in whole or in part.

For more details, check out the posted list under the Ramapo tab.

Spills (1)

• May 16 - unknown amounts of home heating oil reported spilled at a private residence on Union Rd in Spring Valley - Rockland

Report Key

Flows

WTNY describes the stream flows in each of 17 watersheds, including direction/path of flow, listing monitoring stations in order from headwaters to outlet, indicating the normal flow  volume in cubic feet per second (CFS), the gage height (flow depth) during normal conditions and the flood stages, or the gage height at which flooding will occur.  Locate your “home body” (the river or stream nearest you) to see where the flow originates, how high the flow must be for minor flooding to occur.  Log in to USGS Waterwatch current streamflow for real time measurements at the monitoring station nearest you and sign up there for high flow alerts.

Flow volume can change rapidly during snowmelt and rain events, check your local upstream station flow levels at the USGS WaterWatch Current Streamflow site, or sign up for high flow alerts to your mobile device.  Streamflow data is subject to review as sensors at the monitoring stations do malfunction from time to time. See USGS Provisional Data Statement at the end of this report for more information.

EPA Impaired Water Bodies 303d List

The EPA requires all states update a draft list of impaired water bodies (the 303d list) every two years; providing a period for public comments, presenting the draft list to the EPA.  The final 303d list is published as approved by the EPA, roughly every two years.

Impaired water bodies are defined as those with contaminants measured above threshold levels, as set by the EPA Clean Water Act, or where the desired use is impaired.  The latest Draft List for New York State, covering 2020-2022 has closed for public comments, being submitted to EPA for review.  (See the 2020-2022 Draft Impaired Water Bodies 303(d) List, organized by watershed area, here on this site.) The 2020-2022 Draft list includes NYS lakes, creeks, rivers and reservoirs that New York Department of Environmental Conservation has recommended for de-listing, along with water bodies requiring Total Maximum Daily Load (TMDL) plans.  The TMDL plan is a type of Clean Water Plans, established by a collaboration of municipal, industrial and environmental groups in an overlay zoning district.  

Hazardous Algae Blooms (HABs) Beach Alerts – monitoring is complete for the season, will resume in spring 2023

Hazardous algae blooms are reported here as they are confirmed across the state, as found on the NYS Department of Environmental Conservation NYHABs notification site. 

• active blooms are reports current within two weeks, observed reported and confirmed. These are listed by water body with date and time of the report, placed in the applicable watershed, with location information (accuracy of our location description is limited by the accuracy of the location tag in the report to NY DEC).

Contact parks management for the current information on local conditions before heading out and consider using an on-site rapid test for microcystin toxin.

Drinking Water Advisories

Boil Water and Do not Consume advisories issued by drinking water facilities for various reasons, short term disruptions due to water main breaks, repairs, loss of pressure are posted here by watershed area.  NYS and EPA Region 2 Drinking water facility notices are posted here.

Spills

NYS Spill Hotline: 1-800-457-7362
National Response Center: 1-800-424-8802

Reporting from the latest records uploaded to the NYS Hazardous Spill Incidents database by County each week. 

• Spills of petroleum products of 40 gallons or more are listed weekly in the watershed in which they occur, citing location of the spill, the contaminant spilled (if known), the quantity (if known) and the resource affected (if known) surface water, groundwater, sewer, etc, and any amount recovered at the site.

Spills over 100 gal, very toxic chemical spills and spills that impact state waters are flagged and followed up with the spiller, the state and/or EPA authorities for more information, these are marked with asterisk.*

See NY Spills Tracker for more information on these spills as it becomes available.

Note: DEC receives upward of sixteen thousand spill reports each year; each report is investigated by qualified personnel.  Report files are closed when it is determined the spill is contained and under the control of the spiller or state authorities and a clean up plan is in place or completed.

Sources

WaterToday New York aggregates information and data from New York State Department of Environmental Conservation, Department of Health, Region 2- EPA, USGS, NWS, NOAA by watershed area.  The accuracy of the information contained in our reports is dependent on these sources.  Provisional data statements apply, confirm data with local authorities before taking action.