TRI facility · TRI 2024 reporting year

Sappi N.A. INC. - Somerset Operations

Total reported releases 2.5M lb held roughly steady year over year (+5%). Total releases concentrations are up 46% since 2010.

1329 WATERVILLE RD, Skowhegan, Maine · 322110 · Paper · operated by Sdw Holdings CORP

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 2.5M.2.5M'10'12'14'16'18'20'22'242.5M
Anomaly engine

Notable Signals

LONG-ARC REGRESSION · LONG-ARC SHIFT

Zinc compounds

Zinc compounds at Sappi N.A. INC. - Somerset Operations have more than doubled since 2010 (through 2024).

LONG-ARC REGRESSION · LONG-ARC SHIFT

Ammonia

Ammonia at Sappi N.A. INC. - Somerset Operations have risen 59% since 2010 (through 2024).

Chemicals reported · most recent year

What This Facility Releases

GENERALCAS N982

Zinc compounds

1.0M lb · -6% YoY

Zinc compounds concentrations have more than doubled since 2010.

GENERALCAS 7664-41-7

Ammonia

490k lb · +11% YoY

Ammonia concentrations are up 59% since 2010.

RESPIRATORYCAS N450

Manganese compounds

342k lb · +19% YoY

Manganese compounds concentrations are roughly unchanged from 2010.

RESPIRATORYCAS 67-56-1

Methanol

324k lb · +19% YoY

Methanol concentrations are up 31% since 2010.

RESPIRATORYCAS 7647-01-0

Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

55k lb · +17% YoY

Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have fallen 33% since 2010.

GENERALCAS N511

Nitrate compounds (water dissociable; reportable only when in aqueous solution)

52k lb · +4% YoY

Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations are roughly unchanged from 2010.

CARCINOGENCAS 75-07-0

Acetaldehyde

43k lb · +20% YoY

Acetaldehyde concentrations are roughly unchanged from 2010.

GENERALCAS N040

Barium compounds (except for barium sulfate (CAS No. 7727-43-7))

42k lb · -13% YoY

Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) concentrations have fallen 15% since 2010.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 1,158. Why we surface this →

POPULATION SHARE
56.4%

Low-income

POPULATION SHARE
8.0%

People of color

POPULATION SHARE
8.8%

Under age 5

POPULATION SHARE
24.7%

Over age 64

Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.

Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.

What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.