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

ELECTRIC BOAT COMPANY

Quick Summary

  • Released 186 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
75 EASTERN POINT ROAD
GROTON, CT 06340
View on map ↗
County
NEW LONDON County
Industry
Manufacturing
NAICS (North American Industry Classification)
336611
Inspections
8 · last May 6, 2025
Total Penalties
$0 · last Jun 14, 2018
Registry ID
110011370729

How This Compares

#96 of 204 TRI reporters in CT
#9,223 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.

1
Air (CAA)
Qtrs Non-Compliant
8
Water (CWA)
Qtrs Non-Compliant
1
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) -48% overall
Year Total Releases (lbs) vs Prior Year
2015 144
2016 178 +24%
2017 186 +4%
2018 102 -45%
2019 69 -33%
2020 68 -1%
2021 106 +55%
2022 94 -11%
2023 63 -33%
2024 74 +18%

2024

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 38 1 37 94,263
Manganese compounds 15 15 6,756
Nickel 10 9 0 64,569 ♦ Carcinogen
Lead 8 8 1 148,297 ♦ Carcinogen
Chromium compounds (except for chromite ore mined in the Transvaal Region) 3 3 28,822
Diisocyanates 0 0 6,417

2023

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 31 1 30 83,727
Manganese compounds 12 12 11,057
Nickel 10 10 0 86,973 ♦ Carcinogen
Lead 6 4 2 88,615 ♦ Carcinogen
Chromium compounds (except for chromite ore mined in the Transvaal Region) 4 4 41,973
Diisocyanates 0 0 7,319

2022

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 60 1 60 88,753
Lead 10 4 6 82,306 ♦ Carcinogen
Manganese compounds 9 9 7,170
Nickel 8 8 1 47,914 ♦ Carcinogen
Chromium compounds (except for chromite ore mined in the Transvaal Region) 6 3 2 28,287
Diisocyanates 1 1 13,243

2021

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 71 2 69 78,635
Lead 11 4 7 84,351 ♦ Carcinogen
Nickel 11 8 2 67,298 ♦ Carcinogen
Manganese compounds 9 9 11,684
Chromium compounds (except for chromite ore mined in the Transvaal Region) 4 3 1 38,180
Diisocyanates 1 1 50,960

2020

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 37 1 36 57,161
Manganese compounds 12 12 17,722
Nickel 8 7 2 42,944 ♦ Carcinogen
Lead 8 7 1 90,649 ♦ Carcinogen
Chromium compounds (except for chromite ore mined in the Transvaal Region) 2 2 0 42,633
Diisocyanates 0 0 34,684

2019

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 58 1 57 40,347
Manganese compounds 11 11 22,473

2018

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 65 2 63 67,102
Manganese compounds 13 13 24,244
Nickel 11 10 1 54,147 ♦ Carcinogen
Lead 10 7 3 172,372 ♦ Carcinogen
Chromium compounds (except for chromite ore mined in the Transvaal Region) 3 3 0 58,304
Diisocyanates 0 0 6,243

2017

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 76 2 75 78,489
Nickel 58 11 46 68,741 ♦ Carcinogen
Chromium compounds (except for chromite ore mined in the Transvaal Region) 17 5 12 64,091
Lead 17 7 10 133,108 ♦ Carcinogen
Manganese compounds 13 13 23,186
Diisocyanates 5 5 14,721

2016

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 78 2 76 56,000
Nickel 54 11 43 40,396 ♦ Carcinogen
Chromium compounds (except for chromite ore mined in the Transvaal Region) 16 5 11 53,921
Lead 16 7 9 98,046 ♦ Carcinogen
Manganese compounds 10 10 23,744
Diisocyanates 5 5 12,476

2015

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 59 1 57 60,479
Nickel 44 8 36 19,340 ♦ Carcinogen
Chromium compounds (except for chromite ore mined in the Transvaal Region) 18 5 13 38,684
Lead 11 7 4 145,025 ♦ Carcinogen
Manganese compounds 7 7 23,412
Diisocyanates 5 5 9,099

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.

Chemical Released Recycled Energy Recovery Treated
Nickel 62,310
Chromium compounds (except for chromite ore mined in the Transvaal Region) 28,338
Copper compounds 94,231
Lead 147,506
Manganese compounds 6,716

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
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
Nickel 0
UNIVAR SOLUTIONS USA INC
BINGHAMTON, NY
Nickel 2,225
METAL MANAGEMENT NORTHEAST CT
NORTH HAVEN, CT
Nickel 62,310
SPRING GROVE RESOURCE RECOVERY INC
CINCINNATI, OH
Nickel 33
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
Chromium compounds (except for chromite ore mined in the Transvaal Region) 8
METAL MANAGEMENT NORTHEAST CT
NORTH HAVEN, CT
Chromium compounds (except for chromite ore mined in the Transvaal Region) 28,338
SPRING GROVE RESOURCE RECOVERY INC
CINCINNATI, OH
Chromium compounds (except for chromite ore mined in the Transvaal Region) 46
UNIVAR SOLUTIONS USA INC
BINGHAMTON, NY
Chromium compounds (except for chromite ore mined in the Transvaal Region) 418
CLEAN HARBORS OF CONNECTICUT INC
BRISTOL, CT
Chromium compounds (except for chromite ore mined in the Transvaal Region) 10
CLEAN HARBORS OF BRAINTREE INC
BRAINTREE, MA
Chromium compounds (except for chromite ore mined in the Transvaal Region) 2
UNIVAR SOLUTIONS USA INC
BINGHAMTON, NY
Diisocyanates 6,417
METAL MANAGEMENT NORTHEAST CT
NORTH HAVEN, CT
Manganese compounds 6,716
SPRING GROVE RESOURCE RECOVERY INC
CINCINNATI, OH
Manganese compounds 40
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
Copper compounds 0
METAL MANAGEMENT NORTHEAST CT
NORTH HAVEN, CT
Copper compounds 94,231
SPRING GROVE RESOURCE RECOVERY INC
CINCINNATI, OH
Copper compounds 28
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
Lead 8
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
BRISTOL, CT
Lead 3
CLEAN HARBORS OF BRAINTREE INC
BRAINTREE, MA
Lead 127
METAL MANAGEMENT NORTHEAST CT
NORTH HAVEN, CT
Lead 147,506
SPRING GROVE RESOURCE RECOVERY INC
CINCINNATI, OH
Lead 255
UNIVAR SOLUTIONS USA INC
BINGHAMTON, NY
Lead 397
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
Lead 0

Transfers to Publicly-Owned Treatment Works (POTWs)

Toxic chemicals transferred to municipal wastewater treatment plants during the most recent TRI reporting year. Quantities in pounds.

Chemical Transferred (lbs) POTW
Copper compounds 4 GROTON WATER POLLUTION CONTROL FACILITY, GROTON
Manganese compounds GROTON WATER POLLUTION CONTROL FACILITY, GROTON
Nickel 1 GROTON WATER POLLUTION CONTROL FACILITY, GROTON
Chromium compounds (except for chromite ore mined in the Transvaal Region) GROTON WATER POLLUTION CONTROL FACILITY, GROTON
Lead 1 GROTON WATER POLLUTION CONTROL FACILITY, GROTON

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
caa FRV Nov 3, 2025 Open
cwa Management Practice Violations - Failure to Maintain Records Jun 5, 2025 Open
cwa Permit Violations - Unapproved Operation Jun 5, 2025 Open
cwa Permit Violations - Violation Specified in Comment Jun 5, 2025 Open
cwa Permit Violations - Discharge Without a Valid Permit Jun 5, 2025 Open
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators May 6, 2025 May 21, 2025 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 6, 2025 May 21, 2025 Resolved
cwa Permit Violations - Discharge Without a Valid Permit Mar 21, 2023 Open
cwa Management Practice Violations - Improper Operation and Maintenance Mar 21, 2023 Open
caa FRV Sep 2, 2022 Open
caa FRV May 5, 2022 Open
caa FRV Mar 24, 2021 Open
caa FRV Mar 29, 2018 Open
rcra Interim Status Standards for Owners and Operators of HW TSDs: Financial Requirements Aug 10, 2007 Mar 28, 2008 Resolved
rcra Standards Applicable to Generators of HW: General Sep 5, 2000 Oct 2, 2000 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Sep 5, 2000 Oct 2, 2000 Resolved
rcra Standards Applicable to Generators of HW: General Mar 9, 1999 Nov 4, 1999 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Mar 9, 1999 Nov 4, 1999 Resolved
rcra Standards for Owners and Operators of HW TSDs: Use and Management of Containers Sep 25, 1996 Sep 5, 2000 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Sep 25, 1996 Nov 13, 1996 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers Sep 25, 1996 Nov 13, 1996 Resolved
rcra Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures Sep 25, 1996 Sep 5, 2000 Resolved
rcra Standards Applicable to Generators of HW: General Dec 1, 1994 Sep 5, 2000 Resolved
rcra Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures Dec 1, 1994 Sep 25, 1996 Resolved
rcra Standards for Owners and Operators of HW TSDs: Use and Management of Containers Dec 1, 1994 Sep 5, 2000 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: General Dec 1, 1994 Sep 25, 1996 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards Dec 1, 1994 Sep 25, 1996 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Manifest System, Recordkeeping and Reporting Dec 1, 1994 Nov 13, 1996 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Sep 25, 1989 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Jul 8, 1987 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: Financial Requirements Jul 8, 1987 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Oct 28, 1986 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Jun 16, 1986 Dec 1, 1994 Resolved
rcra Violation of a formal enforcement agreement or order. (3008(a) or 3013) Dec 10, 1985 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: Closure and Post-Closure Jul 23, 1985 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Jul 23, 1985 Dec 1, 1994 Resolved
rcra Violation of a formal enforcement agreement or order. (3008(a) or 3013) Jul 23, 1985 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Jun 27, 1984 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: Closure and Post-Closure Jun 27, 1984 Dec 1, 1994 Resolved
rcra Standards for Owners and Operators of HW TSDs: Financial Requirements Jun 27, 1984 Dec 1, 1994 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
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 0.03 MGD 0.02 +43% Sep 2025 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 34.58 MGD 27.73 +25% Aug 2025 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 0.03 MGD 0.02 +43% Aug 2025 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 0.03 MGD 0.02 +43% Aug 2025 Open
Oil & Grease DMR, Limited - Numeric Violation 14.70 mg/L 10.00 +47% Jun 2025 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 35.69 MGD 27.73 +29% Feb 2025 Open
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.11 mg/L 0.07 +52% Jan 2025 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 30.47 MGD 27.73 +10% Dec 2024 Open
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.05 mg/L 0.05 +8% Aug 2023 Open
Oxidants, free available DMR, Limited - Numeric Violation 0.30 mg/L 0.20 +50% Sep 2022 Open
Oxidants, free available DMR, Limited - Numeric Violation 0.23 mg/L 0.20 +15% Aug 2022 Open
NOAEL Static 48Hr Acute Pimephales promelas DMR, Limited - Numeric Violation 0.00 % 90.00 +100% Jun 2022 Open
Oxidants, free available DMR, Limited - Numeric Violation 0.72 mg/L 0.20 +260% Jun 2022 Open
NOAEL Static 48Hr Acute D. pulex DMR, Limited - Numeric Violation 0.00 % 90.00 +100% Jun 2022 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 0.09 MGD 0.06 +42% Oct 2021 Open
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.04 mg/L 0.03 +24% Jul 2021 Open
Oil & Grease DMR, Limited - Numeric Violation 23.90 mg/L 10.00 +139% Nov 2020 Open
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.07 mg/L 0.05 +44% Jul 2019 Resolved
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.07 mg/L 0.05 +53% Apr 2019 Resolved
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.15 mg/L 0.10 +56% Nov 2018 Open
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.15 mg/L 0.05 +211% Nov 2018 Open
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.61 mg/L 0.05 +1,163% Nov 2015 Resolved
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.61 mg/L 0.10 +531% Nov 2015 Open
Copper, total [as Cu] DMR, Limited - Numeric Violation 0.07 mg/L 0.05 +45% Sep 2015 Resolved
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 0.04 MGD 0.04 +8% Apr 2015 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 0.17 MGD 0.07 +146% Apr 2015 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 0.17 MGD 0.07 +138% Mar 2015 Open
Flow, maximum during 24 hr period DMR, Limited - Numeric Violation 0.05 MGD 0.04 +30% 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.

Administrative - Formal
· Case 01-2018-2014 · Jun 14, 2018
$60,000
Administrative - Formal
· Case 01-2018-2011 · Apr 9, 2018
State Administrative Order of Consent
Clean Water Act · Case CT-WC5699 · Dec 30, 2010
$96,000
FIELD NOTICE OF VIOLATION
RCRA (Hazardous Waste) · Case RCRA-CTD001147842-001 · Sep 5, 2000
Administrative - Formal
· Case 01-1997-0079 · Jun 29, 1998
$13,600
FIELD NOTICE OF VIOLATION
RCRA (Hazardous Waste) · Case RCRA-CTD001147842-000 · Aug 9, 1995
FINAL CIVIL JUDICIAL ACTION FOR IMMINENT AND SUBSTANTIAL ENDANGERMENT
RCRA (Hazardous Waste) · Case RCRA-CTD001147842-003 · Sep 28, 1988
$25,000
INITIAL CIVIL JUDICIAL ACTION FOR COMPLIANCE AND/OR MONETARY PENALTY
RCRA (Hazardous Waste) · Case RCRA-CTD001147842-015 · Oct 10, 1986
REFERRAL TO ATTORNEY GENERAL
RCRA (Hazardous Waste) · Case RCRA-CTD001147842-014 · Sep 11, 1986

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