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This is a Non-Federal dataset covered by different Terms of Use than

Connected Sewer Service Areas

Metadata Updated: February 9, 2024

This data was created through the modification of an existing sewer service dataset from the CT Office of Policy and Management (OPM), in addition to sewer data from the Southeastern Connecticut Council Of Government (SCCOG) and the Town of Stonington. It also includes data from the Sewer Service Area 2018 file in areas where the OPM dataset was not as current. The OPM data was modified by reducing the extensive categories which represent all areas containing sewers to a "Connected" classification and everything that falls outside to "Not Connected". SCCOG Data: Data was clipped to individual municipal boundaries for all 21 municipalites with sewer information within the SCCOG. The "Existing" category from attribute table was extracted via selection to create the "Connected" areas for 19/21 municipalities. The Town of Stonington data was merged with the SCCOG data as both had areas which were not included in the other. The North Stonington data was combined with SSA 2018 data to get the most accurate representation for that town. OPM Data: Data was modified to isolate the undefined and fragmented categories, (QA- using municipal websites, PDF maps and local contacts for verification where available) then Clipped to municipal boundaries. All the areas that are connected to sewers were Dissolved, only maintaining the key fields listed and described below. The datasets were combined using the Merge tool to get all the connected sewer service areas in the state. This Connected feature-class was Erased from the CT State by municipal feature-class to obtain the "Not Connected" areas which were then Merged to ascertain a feature-class containing areas that are Connected and Not Connected. Description of Fields:TOWN- Represents all the municipalities with the state of CTs boundaries. CNTY_NAME- Represents the eight (8) county names to which each municipality belongs to.

SEWERS- This field has two classes "Existing" and "No Sewer" and this identifies if a municipality has sewers existing within its boundary or not. SEWER-STATUS- The Sewer Status field represents the areas within in each municipality that is either "Connected" or "Not Connected" to sewers.TREATMENTFACILITY- This field represents the sewer service treatment facility (endpoint) that processes the waste for each municipality. For municipalities without sewers, “Not Applicable” is the designated value. PASSTHROUGH- This field identifies if the wastewater passes through other municipalities on the way to the treatment facility (endpoint) as denoted by a "Yes" or "No" value. Feature class is symbolized on the Sewer Status field to show the “Connected” (green) and “Not Connected” classes (dark grey/black). DEEP welcomes the opportunity to receive any feedback that can help improve the quality of the information presented in this map by contacting Carlos Esguerra (

Access & Use Information

Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than License: Creative Commons CCZero

Downloads & Resources


Metadata Created Date September 2, 2022
Metadata Updated Date February 9, 2024

Metadata Source

Harvested from Connecticut Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date September 2, 2022
Metadata Updated Date February 9, 2024
Publisher Department of Energy & Environmental Protection
Data First Published 2022-03-07
Data Last Modified 2022-03-07
Category geospatial
Public Access Level public
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id b5dd6f14-e1d9-4282-aadf-c37561679984
Harvest Source Id 36c82f29-4f54-495e-a878-2c07320bf10c
Harvest Source Title Connecticut Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -73.7261,40.9846,-71.7814,42.0486
Source Datajson Identifier True
Source Hash 76f71b01be54e893772cb0ff3162537d65a6475ae534052a5f271c63e03b2fae
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -73.7261, 40.9846, -73.7261, 42.0486, -71.7814, 42.0486, -71.7814, 40.9846, -73.7261, 40.9846}

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