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Layer: SuitRoofs1 (1)

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OBJECTID_1 (type: esriFieldTypeOID, alias: OBJECTID_1, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
OBJECTID (type: esriFieldTypeInteger, alias: OBJECTID, SQL Type: sqlTypeOther, nullable: true, editable: true)
PART_USE (type: esriFieldTypeString, alias: PART_USE, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true)
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GRND_ELEV_ (type: esriFieldTypeDouble, alias: GRND_ELEV_, SQL Type: sqlTypeOther, nullable: true, editable: true)
ROOF_ELEV_ (type: esriFieldTypeDouble, alias: ROOF_ELEV_, SQL Type: sqlTypeOther, nullable: true, editable: true)
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IEL_TYPE (type: esriFieldTypeString, alias: IEL_TYPE, SQL Type: sqlTypeOther, length: 12, nullable: true, editable: true)
Land_Use (type: esriFieldTypeString, alias: Land_Use, SQL Type: sqlTypeOther, length: 3, nullable: true, editable: true)
BRA_Land_U (type: esriFieldTypeString, alias: BRA_Land_U, SQL Type: sqlTypeOther, length: 3, nullable: true, editable: true)
Added (type: esriFieldTypeDate, alias: Added, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
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Shape__Len (type: esriFieldTypeDouble, alias: Shape__Len, SQL Type: sqlTypeOther, nullable: true, editable: true)
Acres (type: esriFieldTypeSingle, alias: Area Acres, SQL Type: sqlTypeOther, nullable: true, editable: true)
Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

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Layer: EJintersectRoofs (2)

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The following tables from the US Census Bureau were used to compile the updated 2020 EJ datalayer, released in November, 2022:

Minority population:

2020 Census Redistricting Data: Table P2: HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE

pct_minority_P2 = ((Total pop P2_001N - Not Hispanic or Latino:Population of one race:White alone P2_005N) / Total P2_001N) * 100

Median Household Income (block groups, municipalities and state)

American Community Survey 2020 5-year estimates: Table B19013: MEDIAN HOUSEHOLD INCOME IN THE PAST 12 MONTHS (IN 2020 INFLATION-ADJUSTED DOLLARS)

Limited English Households:

American Community Survey 2020 5-year estimates: Table C16002: HOUSEHOLD LANGUAGE BY HOUSEHOLD LIMITED ENGLISH SPEAKING STATUS

limEngHH = Total:Spanish:limited English speaking household C16002_004E + Total:Other Indo-European languages:limited English speaking household C16002_007E + Total:Asian and Pacific Island languages:Limited English speaking household C16002_010E + Total:Other languages:Limited English speaking household C16002_013E)

limEngHHpct = (limEngHH / TotalHH C16002_001E) * 100

Additional data adjustments:

1. Block groups with a total population of fewer than 50 were removed.

2. 228 2020 block groups have no MHHI in 2020 ACS table.130 of these did have a value in the 2019 ACS table so the 2019 BG MHHI and PCT BG MHHI (so the 2019 value for MA MHHI is used) were transferred to 130 BGs in the 2020 update. Those BGs are coded with ‘1’ in BG_MHHI_is_2019 This leaves 96 block groups with an unknown and not substituted 2020 BG MHHI

5 of these are in towns with a muni MHHI > 150% of the MA MHHI. These are not designated as EJ.

43 of the remaining are designated as EJ with the M and/or E criteria

16 of the remaining have a population in EJ group quarters > 50%

16 of the remaining have a total population < 50

This leaves 16 block groups that may be EJ for income but no data are available to determine this. These are coded as EJ = No and median_household_income = ‘U’.