Combined Sewer Overflows (CSOs): Beginning 2013 | Last Updated 10 Jun 2019

The dataset represents the locations of combined sewer overflow (CSOs) outfall locations in NYS. It also includes overflow detection capabilities of CSO communities and overflow frequency data within a specified timeframe.

Tags: csos, sewage, sewage pollution, water quality, wet weather

This dataset has the following 17 columns:

Column NameAPI Column NameData TypeDescription
SPDES Permit Numberspdes_permit_numbertextUnique identification number for individual wastewater treatment plants permitted through the New York Statewide Pollutant Discharge Elimination System (SPDES) generated by the New York State Department of Environmental Conservation
Outfall Numberoutfall_numbertextOutfall number designated by the permitted facility to identify the outfalls listed in their SPDES permit
CSO Identification Numbercso_identification_numbertextA unique string used to identify the outfall
Facility Namefacility_nametextName of the municipal wastewater treatment facility and/or collection system owner
Facility Owner Namefacility_owner_nametextName of the municipality that owns the wastewater treatment facility and/or collection system
Receiving Waterbody Namereceiving_waterbody_nametextName of the waterbody that the CSO outfall may discharge into
Number of Permitted Outfallsnumber_of_permitted_outfallsnumberNumber of CSO outfall locations listed in the facility’s SPDES permit
Discharge Activation Typedischarge_activation_typetextMethod the system owner uses to detect overflow at the outfall. There are three types of methods: 1. Model—models are predictive mathematical calculations that are based on watershed and rainfall information 2. Monitoring—municipalities that have monitoring equipment is installed at the outfall and collects real-time water flow information 3. Observation—municipal staff visually check the outfall to determine if the CSO has discharged
Number of Overflow Eventsnumber_of_overflow_eventstextNumber of overflow events that have occurred in the time period specified in the “Timeframe of overflow event information’ column. “No Data” indicates that no CSO event data was reported for this outfall.
Timeframe of Overflow Events Informationtimeframe_of_overflow_events_informationtextTimeframe that the listed number of overflows occurred for the outfall. “No Data” indicates that no CSO event data was reported for this outfall.
Data as ofdata_as_ofnumberCalendar year for which data is applicable.
Link to Real-time Informationlink_to_real_time_informationurlWebsite URL to visit facility’s website for up-to-date information about CSO events.
DEC Regiondec_regionnumberNYSDEC Region where the site is located: Region 1: (Long Island) Nassau and Suffolk counties; Region 2: (New York City) Brooklyn, Bronx, Manhattan, Queens and Staten Island; Region 3: (Lower Hudson Valley) Dutchess, Orange, Putnam, Rockland, Sullivan, Ulster and Westchester counties; Region 4: (Capital Region/Northern Catskills) Albany, Columbia, Delaware, Greene, Montgomery, Otsego, Rensselaer, Schenectady and Schoharie counties; Region 5: (Eastern Adirondacks/Lake Champlain) Clinton, Essex, Franklin, Fulton, Hamilton, Saratoga, Warren and Washington counties; Region 6: (Western Adirondacks/Eastern Lake Ontario) Herkimer, Jefferson, Lewis, Oneida and St. Lawrence counties; Region 7: (Central New York) Broome, Cayuga, Chenango, Cortland, Madison, Onondaga, Oswego, Tioga and Tompkins counties; Region 8: (Western Finger Lakes) Chemung, Genesee, Livingston, Monroe, Ontario, Orleans, Schuyler, Seneca, Steuben, Wayne and Yates counties; Region 9: (Western New York) Allegany, Chautauqua, Cattaraugus, Erie, Niagara and Wyoming counties
CountycountytextThe county in which the outfall is located.
LatitudelatitudenumberLatitude in decimal degrees of the outfall location
LongtitudelongtitudenumberLongitude in decimal degrees of the outfall location
Location 1geocoded_columnlocationOpen Data/Socrata-generated geocoding information from supplied latitude and longitude values.