EmissionsLookup
Non-Compliance TRI Reporter Clean Air Act Clean Water Act RCRA

ONSEMI- EAST FISHKILL FACILITY

Quick Summary

  • •Released 744,131 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
  • •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
  • •Assessed $0 in total penalties since records began.
  • •Reports releases of chemicals classified as known or probable carcinogens.
Address
2070 NY-52
HOPEWELL JUNCTION, NY 12533
View on map ↗
County
DUTCHESS County
Industry
Manufacturing
NAICS (North American Industry Classification)
334413
Inspections
9 · last Aug 21, 2025
Total Penalties
$0 · last May 1, 2020
Registry ID
110041998345

How This Compares

#5 of 538 TRI reporters in NY
#267 of 16,877 TRI reporters in Manufacturing

Ranked by most recent year's total TRI releases.

Compliance Status (Last 12 Quarters)

Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.

0
Air (CAA)
Qtrs Non-Compliant
7
Water (CWA)
Qtrs Non-Compliant
3
Hazardous Waste (RCRA)
Qtrs Non-Compliant

TRI Toxic Chemical Releases

Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.

Emissions Trend (2015–2024) -57% overall
Year Total Releases (lbs) vs Prior Year
2015 1,329,582 —
2016 941,878 -29%
2017 744,131 -21%
2018 639,096 -14%
2019 2,223 -100%
2020 672,489 +30151%
2021 594,484 -12%
2022 645,044 +9%
2023 514,051 -20%
2024 566,604 +10%

2024

Chemical Total (lbs) Air Water Land Off-Site
Benzo[g,h,i]perylene — — — — 14
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 536,112 — 536,112 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 10,087 10,087 — — —
Ammonia 7,391 7,371 20 — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 5,657 5,657 — — —
Ethylene glycol 4,370 4,370 — — 776
Hydrogen fluoride 1,674 1,674 — — 3,090
Nitric acid 940 940 — — —
N-Methyl-2-pyrrolidone 355 355 — — 32,749
Ozone 12 12 — — —
Fluorine 3 2 — 1 —
Polycyclic aromatic compounds 3 3 — — 1,269 ♦ Carcinogen

2023

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 486,728 — 486,728 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 8,900 8,900 — — —
Ammonia 7,461 7,400 61 — —
Ethylene glycol 4,500 4,500 — — 11,058
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,200 3,200 — — —
Hydrogen fluoride 1,700 1,700 — — —
Nitric acid 860 860 — — —
N-Methyl-2-pyrrolidone 380 380 — — 73,751
Copper compounds 228 4 224 — 22,506
Ozone 87 87 — — —
Fluorine 4 4 — — —
Polycyclic aromatic compounds 3 3 — — — ♦ Carcinogen

2022

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 619,772 — 619,772 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 10,700 10,700 — — —
Ethylene glycol 4,500 4,500 — — 4,116
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,300 3,300 — — —
Ammonia 3,199 3,100 99 — —
Hydrogen fluoride 1,800 1,800 — — —
Nitric acid 1,000 1,000 — — —
N-Methyl-2-pyrrolidone 410 410 — — 116,444
Copper compounds 314 8 306 — 36,485
Fluorine 30 30 — — —
Ozone 16 16 — — —
Polycyclic aromatic compounds 3 3 — — — ♦ Carcinogen

2021

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 569,216 — 569,216 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 8,600 8,600 — — —
Ammonia 4,791 4,400 391 — —
Ethylene glycol 4,400 4,400 — — 4,290
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,600 3,600 — — —
Nitric acid 2,000 2,000 — — —
Hydrogen fluoride 1,200 1,200 — — —
N-Methyl-2-pyrrolidone 400 400 — — 146,976
Copper compounds 236 7 229 — 44,508
Fluorine 25 25 — — —
Ozone 16 16 — — —

2020

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 640,831 — 640,831 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 15,500 15,500 — — —
Ammonia 4,736 4,700 36 — —
Ethylene glycol 4,400 4,400 — — 3,996
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,700 3,700 — — —
Nitric acid 1,600 1,600 — — —
Hydrogen fluoride 1,000 1,000 — — —
N-Methyl-2-pyrrolidone 400 400 — — 136,073
Copper compounds 281 6 275 — 28,544
Fluorine 25 25 — — —
Ozone 16 16 — — —

2019

Chemical Total (lbs) Air Water Land Off-Site
Hydrogen fluoride 2,000 2,000 — — —
Copper compounds 221 6 215 — 29,872
Lead compounds 2 2 — — 625

2018

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 615,326 — 615,326 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 7,000 7,000 — — —
Ammonia 4,936 4,900 36 — —
Ethylene glycol 4,310 4,310 — — 43
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,700 3,700 — — —
Hydrogen fluoride 1,900 1,900 — — —
Nitric acid 1,000 1,000 — — —
N-Methyl-2-pyrrolidone 614 600 14 — 93,010
Copper compounds 275 6 269 — 13,512
Fluorine 23 23 — — —
Ozone 10 10 — — —
Lead compounds 2 2 — — 1,582

2017

Chemical Total (lbs) Air Water Land Off-Site
Polycyclic aromatic compounds — — — — — ♦ Carcinogen
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 720,598 — 720,598 — 6
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 7,100 7,100 — — —
Ammonia 4,929 4,900 29 — —
Ethylene glycol 4,100 4,100 — — 109
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,600 3,600 — — —
Hydrogen fluoride 1,900 1,900 — — —
Nitric acid 950 950 — — —
N-Methyl-2-pyrrolidone 644 600 44 — 133,711
Copper compounds 261 4 257 — 17,937
Fluorine 26 26 — — —
Lead compounds 13 3 10 — 2,970
Ozone 10 10 — — —

2016

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 921,167 — 921,167 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 5,400 5,400 — — —
Ammonia 4,687 4,600 87 — —
Ethylene glycol 4,100 4,100 — — 1,174
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,200 3,200 — — —
Hydrogen fluoride 1,700 1,700 — — —
Nitric acid 820 820 — — —
Copper compounds 381 16 365 — 24,290
N-Methyl-2-pyrrolidone 360 360 — — 185,032
Fluorine 36 36 — — —
Lead compounds 17 2 15 — 4,067
Ozone 10 10 — — —

2015

Chemical Total (lbs) Air Water Land Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 1,312,894 — 1,312,894 — —
Ammonia 4,034 4,000 34 — —
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 3,800 3,800 — — —
Ethylene glycol 3,100 3,100 — — 1,433
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 2,500 2,500 — — —
Hydrogen fluoride 1,600 1,600 — — —
Nitric acid 700 700 — — —
Copper compounds 475 21 454 — 25,659
N-Methyl-2-pyrrolidone 410 410 — — 183,165
Fluorine 41 41 — — —
Lead compounds 18 2 16 — 733
Ozone 10 10 — — —

Waste Management & Recycling

How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.

Off-Site Transfer Destinations

Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.

Destination Chemical Disposal Recycling Energy Rec. Treatment
SAFETY KLEEN SYSTEMS INC
LINDEN, NJ
Ethylene glycol — 725 — —
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
Ethylene glycol — — 51 —
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
Hydrogen fluoride — — — 3,090
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
N-Methyl-2-pyrrolidone — — — 29
SAFETY KLEEN SYSTEMS INC
LINDEN, NJ
N-Methyl-2-pyrrolidone — 10,173 — —
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
N-Methyl-2-pyrrolidone — — 9,193 —
TRADEBE TREATMENT AND RECYCLING OF STOUGHTON
STOUGHTON, MA
Polycyclic aromatic compounds — 92 — —
RECYCLE OIL CO
EASTON, PA
Polycyclic aromatic compounds — 1,048 — —
VLS LANCASTER LLC
LANCASTER, PA
Polycyclic aromatic compounds — 128 — —
RECYCLE OIL CO
EASTON, PA
Benzo[g,h,i]perylene — 11 — —
VLS LANCASTER LLC
LANCASTER, PA
Benzo[g,h,i]perylene — 1 — —
TRADEBE TREATMENT AND RECYCLING OF STOUGHTON
STOUGHTON, MA
Benzo[g,h,i]perylene — 1 — —

Compliance Violations

Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.

Program Type Violation Date Return to Compliance Status
rcra Standards Applicable to Generators of HW: General Aug 21, 2025 Oct 24, 2025 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Aug 21, 2025 Oct 24, 2025 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Aug 21, 2025 Aug 28, 2025 Resolved
rcra Land Disposal Restrictions: General Aug 21, 2025 — Open
rcra Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards Aug 21, 2025 Oct 24, 2025 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Aug 21, 2025 Nov 20, 2025 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Nov 29, 2021 Dec 20, 2021 Resolved
rcra Violation of a permit condition or requirement Sep 21, 2018 May 1, 2020 Resolved
cwa Schedule Event reported late Mar 1, 2009 — Open
cwa Schedule Event unachieved but reported Mar 1, 2009 May 1, 2009 Resolved
cwa Schedule Event achieved late but reported Mar 1, 2009 — Open
cwa Schedule Event unachieved and not reported Mar 1, 2009 May 1, 2009 Resolved
cwa Schedule Event unachieved and not reported Dec 1, 2008 Feb 2, 2009 Resolved
cwa Schedule Event unachieved but reported Dec 1, 2008 Feb 2, 2009 Resolved
cwa Schedule Event achieved late but reported Dec 1, 2008 — Open
cwa Schedule Event reported late Dec 1, 2008 — Open
cwa Schedule Event achieved late but reported Feb 28, 2004 — Open
rcra Standards for Owners and Operators of HW TSDs: General Apr 3, 1992 May 27, 1992 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Sep 9, 1988 Nov 16, 1988 Resolved
rcra Standards for Owners and Operators of HW TSDs: Manifest System, Recordkeeping and Reporting Jan 25, 1988 Jan 27, 1988 Resolved
rcra Standards for Owners and Operators of HW TSDs: Manifest System, Recordkeeping and Reporting Dec 25, 1987 Dec 27, 1987 Resolved
rcra Standards for Owners and Operators of HW TSDs: Manifest System, Recordkeeping and Reporting Feb 25, 1986 Feb 27, 1986 Resolved
rcra EPA Administered Permit Programs: the HW Permit Program Permit Application Feb 7, 1986 Nov 16, 1988 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Apr 29, 1985 Nov 16, 1988 Resolved

Discharge Limit Exceedances

Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.

Pollutant Violation Reported Limit Exceedance Period Status
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 8.70 mg/L 8.00 +9% Oct 2025 Open
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +99,999% Jul 2022 Open
Fluoride, total [as F] DMR, Limited - Numeric Violation 7.50 mg/L 7.30 +3% Dec 2021 Open
Fluoride, total [as F] DMR, Limited - Numeric Violation 8.10 mg/L 7.30 +11% Nov 2021 Open
Nitrogen, ammonia, total [as NH3] DMR, Limited - Numeric Violation 0.10 mg/L 1.30 +99,999% Aug 2021 Resolved
Coliform, fecal general DMR, Limited - Numeric Violation 460.00 MPN/100mL 400.00 +15% Aug 2021 Open
Coliform, fecal general DMR, Limited - Numeric Violation 610.00 MPN/100mL 400.00 +53% Jun 2021 Open
Nitrogen, ammonia, total [as NH3] DMR, Limited - Numeric Violation 2.90 mg/L 1.30 +123% Apr 2021 Resolved
Nitrogen, ammonia, total [as NH3] DMR, Limited - Numeric Violation 3.50 mg/L 2.70 +30% Mar 2021 Resolved
Coliform, fecal general DMR, Limited - Numeric Violation 24.00 MPN/100mL 200.00 +99,999% Jan 2020 Open
Coliform, fecal general DMR, Limited - Numeric Violation 45.00 MPN/100mL 400.00 +99,999% Jan 2020 Open
Coliform, fecal general DMR, Limited - Numeric Violation 211.00 MPN/100mL 200.00 +6% Oct 2019 Open
Solids, settleable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +100% Jun 2019 Resolved
Solids, settleable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +400% May 2019 Resolved
Coliform, fecal general DMR, Limited - Numeric Violation 300.00 MPN/100mL 200.00 +50% Aug 2018 Open
Coliform, fecal general DMR, Limited - Numeric Violation 1,000.00 MPN/100mL 400.00 +150% Aug 2018 Open
Oil & Grease DMR, Limited - Numeric Violation 17.50 mg/L 15.00 +17% Jul 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 47.00 mg/L 40.00 +18% Jul 2018 Open
N-Methyl-2-pyrrolidone DMR, Limited - Numeric Violation 0.07 mg/L 0.02 +250% Dec 2017 Open
Coliform, fecal general DMR, Limited - Numeric Violation 202.00 MPN/100mL 200.00 +1% Jun 2017 Open
Coliform, fecal general DMR, Limited - Numeric Violation 700.00 MPN/100mL 400.00 +75% Jun 2017 Open
Solids, settleable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +100% Dec 2016 Open
Chromium, hexavalent [as Cr] DMR, Limited - Overdue 0.01 mg/L 0.01 +8% Nov 2016 Resolved
Chromium, hexavalent [as Cr] DMR, Limited - Numeric Violation 0.01 mg/L 0.01 +8% Nov 2016 Open
Oil & Grease DMR, Limited - Numeric Violation 18.00 mg/L 15.00 +20% Jul 2016 Open
Solids, settleable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +99,999% Dec 2015 Open
Solids, total suspended DMR, Limited - Numeric Violation 11.00 mg/L 25.00 +99,999% Oct 2015 Open
Solids, total suspended DMR, Limited - Numeric Violation 11.00 mg/L 40.00 +99,999% Oct 2015 Open
Cyanide, total [as CN] DMR, Limited - Numeric Violation 0.10 mg/L 0.06 +67% Apr 2015 Resolved
Solids, settleable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +99,999% Mar 2015 Open

Enforcement Actions

Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.

WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-NYR000218974-001 · Jan 6, 2022
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-NYD000707901-001 · May 1, 2020
$50,000
Administrative - Formal
· Case 02-1999-1124 · Sep 30, 1999
Administrative - Formal
· Case 02-1997-0273 · Mar 17, 1999
Administrative - Formal
· Case 02-1992-0073 · Jun 25, 1992
$7,650
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-NYD000707901-000 · Apr 3, 1992
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-NYD000707901-005 · Oct 27, 1988
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-NYD000707901-004 · Jan 25, 1988
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-NYD000707901-003 · Dec 25, 1987

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