SO Local Electoral Areas (LEAs) are a statistical geography that aligns closely with the official LEA boundary (Statutory instruments 610-638 2018 and 27-28 2019) .In 139 cases they are equivalent to the official boundary. CSO LEAs are comprised of whole CSO EDs and CSO LEAs nest into counties.Update Notice: 4th August 2023: ED and LEA attributes changed on 15 SAs. As a result of the changes to SAs, CSO ED has one additional ED and the number of CSO EDs is 3420 and there is a change to 2 CSO LEAs. The ED and LEAs impacted are

This is a geographical representation of the locations of CSO outfall points statewide. Combined Sewer Overflows (CSO) are sewers that are designed to collect rainwater runoff, domestic sewage, and industrial wastewater in the same pipe. Most of the time, combined sewer systems transport all of their wastewater to a sewage treatment plant, where it is treated and then discharged to a water body. During periods of heavy rainfall or snowmelt, however, the wastewater volume in a combined sewer system can exceed the capacity of the sewer collection system or treatment plant.This map data layer provides information regarding the location of permitted CSO Outfall Points, the applicable NJPDES Permit number, the assigned 3-digit discharge serial number, the latitude and longitude, the alternate name (such as a street address) of the CSO point, the municipality and Watershed Management Area (WMA) where the CSO outfall is located, a unique identifier for each point consisting of the permit number and outfall number, the receiving waterbody, the receiving treatment plant name and permit number, if the CSO outfall has solids and floatable treatment, a link for Discharge Monitoring Report (DMR) data, and a website.

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F7108 - Persons Aged 15 Years and over at full time or part time work. Published by Central Statistics Office. Available under the license Creative Commons Attribution 4.0 (CC-BY-4.0).Persons Aged 15 Years and over at full time or part time work...

The 2021 Combined Sewer Overflow (CSO) spatial data layer shows the point locations of National Pollutant Discharge Elimination System (NPDES) permitted combined sewer overflow discharges. These outfalls occur in older cities in Massachusetts that still have areas of combined sewer and stormwater systems which overflow during heavy storm events. MassDEP has responsibility for ensuring that these systems, along with other sanitary sewer systems, are in compliance with the Clean Waters Act https://www.epa.gov/laws-regulations/summary-clean-water-act and the regulations adopted under 314 CMR 1.00 through 9.00 – please see https://www.mass.gov/regulations/314-CMR-9-401-water-quality-certification for more detail. Please refer to the Sanitary Sewer Systems and Combined Sewer Overflows guide for additional information.A list of active CSO locations was created and checked against lists contained in the NPDES permit for each CSO system along with lists contained in reports available from the systems online or on town websites. In some cases, when needed, CSO systems were contacted to verify active status of outfalls.Outfall locations are estimates based on the best available maps or coordinates and may contain errors and should only be used as a guide. For additional locational information please contact the CSO systems involved.Source Materials and Data AutomationMassDEP staff used information including maps and general descriptions of CSO locations found online and in NPDES permits to assist in mapping. This information was supplemented by maps and coordinates received from municipal staff responsible for CSO management in each of the systems involved, staff knowledge of outfall locations, maps found in system reports, and maps found on town web sites. MassDEP staff viewed the material and then mapped or verified the location of the CSO using the 2019 orthophoto as a basemap. Some systems were able to provide GIS data directly to MassDEP staff – in these cases, CSO locations were placed directly onto the provided points s or the systems provided point locations were used to verify MassDEP locations. When available, coordinates were entered directly and then checked against the orthophoto and other available maps for general accuracy. Last updated July, 2021.

FIELD

TYPE/WDTH

DEFINITION

NPDES_ID

C/50

Permit Number for the National Pollutant Discharge Elimination System (NPDES)

SYSTEMNAME

C/50

CSO System Name

OUTFALL_ID

C/15

Outfall number according to the Town or System

DEP_OUTFL_ID

C/15

Unique ID for the CSO which combines the Town or System abbreviation with the CSO Outfall No

RECVING_WATER

C/100

The body of water the CSO drains into

ADDRESS

C/120

General locational description of the CSO

TOWN

C/40

Standard (1-351) municipality name where the CSO is actually located

DEP_REGION

C/4

MassDEP Regional Office Code

L_TYPE

C/10

Type of location, i.e., estimated location, center of site, etc.

POINT_X

D

X Coordinate Decimal Degrees

POINT_Y

D

Y Coordinate Decimal Degrees

MAJOR_BASIN

C/100

Major Basin the outfall is located within

PERMIT_URL

C/200

URL to permit online

Data Universe

A list of active CSO locations was created and checked against lists contained in the NPDES permit for each CSO system along with lists contained in reports available from the systems online or on town websites. In some cases, when needed, CSO systems were contacted to verify active status of outfalls.CONTACTS AND TERMS OF USE

The CSOs contained in the CSO spatial data layer are based on a list provided by the MassDEP Bureau of Water Resources Wastewater program – for general questions please contact Lealdon Langley at (617) 574-6882. Locations are estimates and should only be used as a guide. For additional locational information please contact the CSO systems involved. For GIS related questions please contact the MassDEP GIS Program at (617) 292-5500.

Population Aged 15 Years and Over Whose Full-Time Education has Ceased

Analysis of ‘DWSD CSO Event Data’ provided by Analyst-2 (analyst-2.ai), based on source dataset retrieved from https://catalog.data.gov/dataset/a747d459-741b-4040-a44c-da0bd15b67dd on 26 January 2022.

--- Dataset description provided by original source is as follows ---

Detroit Water & Sewerage waste water discharge event location data (2008-2014).

Information on location and function of various structures involved with discharging effluent collected by the Detroit Water & Sewerage Department. Combined sewer overflow (CSO) discharge event data from 2008-2014 (2014 data are recorded through June) is available (data are to be interpreted in millions of gallons).

--- Original source retains full ownership of the source dataset ---

Analysis of ‘CSO Electoral Divisions Generalised 100m - OSi National Statistical Boundaries - 2015’ provided by Analyst-2 (analyst-2.ai), based on source dataset retrieved from http://data.europa.eu/88u/dataset/5bb00fe1-9292-4955-8f2c-021c02e82fd2 on 16 January 2022.

--- Dataset description provided by original source is as follows ---

There are 3,440 Electoral Divisions (EDs) which are the smallest legally defined administrative areas in the State. One ED, St. Mary's, straddles the Louth-Meath county border, and is presented in two parts in the SAPS tables, with one part in Louth and the other in Meath. There are 32 EDs with low population, which for reasons of confidentiality have been amalgamated into neighbouring EDs giving a total of 3,409 EDs which appear in the SAPS tables.

The graphic file contains the boundaries for 3,409 EDs. The boundaries have been smoothed in accordance with our licencing agreement with OSi Ireland. These boundaries are for general information only and any individual or organisation downloading them are required to acknowledge the terms and conditions under which they are made available

--- Original source retains full ownership of the source dataset ---

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EA034 - Percentage of 20 Year Olds Usually Resident and Present in the State Who Were Full Time Students 2016. Published by Central Statistics Office. Available under the license Creative Commons Attribution 4.0 (CC-BY-4.0).Percentage of 20 Year Olds Usually Resident and Present in the State Who Were Full Time Students 2016...

A0710 - 1996 Population Aged 15 Years and Over at Work, distinguishing full-time and part-time workers. Published by Central Statistics Office. Available under the license Creative Commons Attribution 4.0 (CC-BY-4.0).1996 Population Aged 15 Years and Over at Work, distinguishing full-time and part-time workers...