Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
KING INDUSTRIES, INC.
Quick Summary
- •Released 7,243 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
-
1 SCIENCE ROAD
NORWALK, CT 06852
View on map ↗ - County
- FAIRFIELD County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 325199
- Inspections
- 10 · last Aug 22, 2025
- Total Penalties
- $0 · last Sep 28, 2000
- Registry ID
- 110064856204
How This Compares
#30
of 204 TRI reporters in CT
#4,553
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
Qtrs Non-Compliant
2
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
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)
+21% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 3,401 | — |
| 2016 | 3,114 | -8% |
| 2017 | 7,243 | +133% |
| 2018 | 7,837 | +8% |
| 2019 | 158 | -98% |
| 2020 | 6,581 | +4060% |
| 2021 | 6,102 | -7% |
| 2022 | 5,612 | -8% |
| 2023 | 6,125 | +9% |
| 2024 | 4,113 | -33% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mixture | — | — | — | — | 87 | |
| Methanol | 3,303 | 3,303 | — | — | 532,362 | |
| Xylene (mixed isomers) | 314 | 314 | — | — | 10,204 | |
| Triethylamine | 222 | 222 | — | — | 1,714 | |
| Ethylbenzene | 150 | 150 | — | — | 2,041 | ♦ Carcinogen |
| Naphthalene | 70 | 70 | — | — | 155,570 | ♦ Carcinogen |
| Methyl isobutyl ketone | 23 | 23 | — | — | 6,516 | ♦ Carcinogen |
| Certain glycol ethers | 16 | 16 | — | — | 6,568 | |
| Zinc compounds | 7 | — | 7 | — | 1,703 | |
| n-Butyl alcohol | 5 | 5 | — | — | 7,601 | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 3 | 3 | — | — | 133,046 |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mixture | — | — | — | — | 14,245 | |
| Certain glycol ethers | 3,079 | 3,079 | — | — | 7,522 | |
| Methanol | 2,780 | 2,780 | — | — | 172,600 | |
| Xylene (mixed isomers) | 101 | 101 | — | — | 20,937 | |
| Naphthalene | 63 | 63 | — | — | 44,483 | ♦ Carcinogen |
| Zinc compounds | 42 | 4 | 38 | — | 913 | |
| Ethylbenzene | 20 | 20 | — | — | 4,187 | ♦ Carcinogen |
| Methyl isobutyl ketone | 19 | 19 | — | — | 5,997 | ♦ Carcinogen |
| Triethylamine | 12 | 12 | — | — | 1,430 | |
| n-Butyl alcohol | 6 | 6 | — | — | 1,430 | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 3 | 2 | 1 | — | 55,363 |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Certain glycol ethers | 2,739 | 2,739 | — | — | 9,904 | |
| Methanol | 2,565 | 2,565 | — | — | 60,749 | |
| Xylene (mixed isomers) | 120 | 120 | — | — | 14,222 | |
| Naphthalene | 86 | 86 | — | — | 44,120 | ♦ Carcinogen |
| Methyl isobutyl ketone | 32 | 32 | — | — | 1,368 | ♦ Carcinogen |
| Triethylamine | 23 | 23 | — | — | 266 | |
| Ethylbenzene | 22 | 22 | — | — | 3,520 | ♦ Carcinogen |
| Zinc compounds | 15 | 2 | 13 | — | 1,551 | |
| n-Butyl alcohol | 6 | 6 | — | — | 952 | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 5 | 1 | 4 | — | 2,974 |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 2,877 | 2,877 | — | — | 74,319 | |
| Certain glycol ethers | 2,825 | 2,825 | — | — | 2,035 | |
| Xylene (mixed isomers) | 184 | 184 | — | — | 17,424 | |
| Naphthalene | 80 | 80 | — | — | 63,068 | ♦ Carcinogen |
| Zinc compounds | 35 | 2 | 33 | — | 1,719 | |
| Ethylbenzene | 30 | 30 | — | — | 2,390 | ♦ Carcinogen |
| Methyl isobutyl ketone | 28 | 28 | — | — | 1,684 | ♦ Carcinogen |
| Triethylamine | 20 | 20 | — | — | 194 | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 12 | 1 | 11 | — | 3,046 | |
| n-Butyl alcohol | 11 | 11 | — | — | 831 |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Certain glycol ethers | 4,108 | 4,108 | — | — | 7,811 | |
| Methanol | 2,122 | 2,122 | — | — | 72,214 | |
| Xylene (mixed isomers) | 151 | 151 | — | — | 21,028 | |
| Naphthalene | 81 | 81 | — | — | 32,788 | ♦ Carcinogen |
| Zinc compounds | 34 | 2 | 32 | — | 2,654 | |
| Methyl isobutyl ketone | 26 | 26 | — | — | 3,020 | ♦ Carcinogen |
| Ethylbenzene | 23 | 23 | — | — | 2,940 | ♦ Carcinogen |
| Triethylamine | 20 | 20 | — | — | — | |
| n-Butyl alcohol | 14 | 14 | — | — | 865 | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 3 | 1 | 2 | — | 6,367 |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Naphthalene | 137 | 137 | — | — | 31,615 | ♦ Carcinogen |
| Methyl isobutyl ketone | 21 | 21 | — | — | 2,519 | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Certain glycol ethers | 4,532 | 4,532 | — | — | 4,309 | |
| Methanol | 2,852 | 2,852 | — | — | 116,247 | |
| Xylene (mixed isomers) | 185 | 185 | — | — | 16,504 | |
| Naphthalene | 123 | 123 | — | — | 52,995 | ♦ Carcinogen |
| Zinc compounds | 57 | 4 | 53 | — | 2,984 | |
| Methyl isobutyl ketone | 28 | 28 | — | — | 2,980 | ♦ Carcinogen |
| Ethylbenzene | 23 | 23 | — | — | 2,055 | ♦ Carcinogen |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 19 | 2 | 17 | — | 4,049 | |
| n-Butyl alcohol | 14 | 14 | — | — | 1,555 | |
| Triethylamine | 4 | 4 | — | — | — |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Certain glycol ethers | 4,126 | 4,126 | — | — | 3,761 | |
| Methanol | 2,658 | 2,658 | — | — | 91,830 | |
| Xylene (mixed isomers) | 203 | 203 | — | — | 8,328 | |
| Naphthalene | 82 | 82 | — | — | 50,126 | ♦ Carcinogen |
| Zinc compounds | 64 | 4 | 60 | — | 2,310 | |
| Methyl isobutyl ketone | 30 | 30 | — | — | 4,157 | ♦ Carcinogen |
| n-Butyl alcohol | 29 | 29 | — | — | 1,043 | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 25 | 2 | 23 | — | 2,365 | |
| Ethylbenzene | 22 | 22 | — | — | 2,940 | ♦ Carcinogen |
| Triethylamine | 4 | 4 | — | — | — |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 2,597 | 2,597 | — | — | 90,980 | |
| Xylene (mixed isomers) | 204 | 204 | — | — | 6,935 | |
| Naphthalene | 97 | 97 | — | — | 41,925 | ♦ Carcinogen |
| Zinc compounds | 63 | 3 | 60 | — | 2,286 | |
| Certain glycol ethers | 58 | 58 | — | — | 3,979 | |
| Methyl isobutyl ketone | 32 | 32 | — | — | 2,473 | ♦ Carcinogen |
| n-Butyl alcohol | 30 | 30 | — | — | 2,265 | |
| Ethylbenzene | 19 | 19 | — | — | 1,362 | ♦ Carcinogen |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 12 | 3 | 9 | — | 1,960 | |
| Triethylamine | 3 | 3 | — | — | — |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 2,629 | 2,629 | — | — | 116,247 | |
| Xylene (mixed isomers) | 385 | 385 | — | — | 18,314 | |
| Naphthalene | 111 | 111 | — | — | 74,504 | ♦ Carcinogen |
| Methyl isobutyl ketone | 59 | 59 | — | — | 2,139 | ♦ Carcinogen |
| Ethylbenzene | 57 | 57 | — | — | 4,597 | ♦ Carcinogen |
| Certain glycol ethers | 53 | 53 | — | — | 7,197 | |
| Zinc compounds | 51 | 3 | 48 | — | 2,334 | |
| n-Butyl alcohol | 43 | 43 | — | — | 6,368 | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 13 | 3 | 10 | — | 3,086 | |
| Ethylene glycol | 0 | 0 | — | — | 427 |
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 |
|---|---|---|---|---|
| n-Butyl alcohol | — | — | 1,085 | 1,714 |
| Certain glycol ethers | — | — | 1,766 | — |
| Ethylbenzene | — | — | 419 | 662 |
| Methyl isobutyl ketone | — | — | — | 1,714 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | — | 27 | — | — |
| Xylene (mixed isomers) | — | — | 2,094 | 3,308 |
| Mixture | — | — | — | 87 |
| Triethylamine | — | — | — | 1,714 |
| Naphthalene | — | — | 37,728 | 59,733 |
| Methanol | — | 295,962 | 1,085 | 46,121 |
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 EL DORADO, LLC
EL DORADO, AR
|
Xylene (mixed isomers) | — | — | — | 3,308 |
|
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
|
Xylene (mixed isomers) | 4,802 | — | — | — |
|
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
|
Xylene (mixed isomers) | — | — | 2,094 | — |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Methyl isobutyl ketone | — | — | — | 1,714 |
|
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
|
Methyl isobutyl ketone | 4,802 | — | — | — |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
BRISTOL, CT
|
Naphthalene | 12 | — | — | — |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Naphthalene | — | — | — | 53,333 |
|
CLEAN HARBORS OF BALTIMORE INC.
BALTIMORE, MD
|
Naphthalene | 52,095 | — | — | — |
|
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
|
Naphthalene | 6,002 | — | — | — |
|
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
|
Naphthalene | — | — | 37,649 | — |
|
SAFETY KLEEN SYSTEMS INC
DOLTON, IL
|
Naphthalene | — | — | 79 | — |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Triethylamine | — | — | — | 1,714 |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Mixture | — | — | — | 87 |
|
CLEAN HARBORS OF BALTIMORE INC.
BALTIMORE, MD
|
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 52,095 | — | — | — |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 17,318 | — | — | — |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
BRISTOL, CT
|
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 3,200 | — | — | — |
|
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
|
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | — | 27 | — | — |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Zinc compounds | 1,699 | — | — | — |
|
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
|
Certain glycol ethers | 4,802 | — | — | — |
|
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
|
Certain glycol ethers | — | — | 1,766 | — |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Ethylbenzene | — | — | — | 662 |
|
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
|
Ethylbenzene | 960 | — | — | — |
|
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
|
Ethylbenzene | — | — | 419 | — |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
n-Butyl alcohol | — | — | — | 1,714 |
|
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
|
n-Butyl alcohol | 4,802 | — | — | — |
|
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
|
n-Butyl alcohol | — | — | 1,085 | — |
|
CLEAN HARBORS OF BALTIMORE INC.
BALTIMORE, MD
|
Methanol | 208,380 | — | — | — |
|
SOLVENTS & PETROLEUM
SYRACUSE, NY
|
Methanol | — | 271,962 | — | — |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Methanol | — | — | — | 9,879 |
|
CLEAN HARBORS REIDSVILLE, LLC
REIDSVILLE, NC
|
Methanol | 4,802 | — | — | — |
|
SAFETY-KLEEN SYSTEMS, INC.
SMITHFIELD, KY
|
Methanol | — | — | 1,085 | — |
|
SPRING GROVE RESOURCE RECOVERY INC
CINCINNATI, OH
|
Methanol | 12 | — | — | — |
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 |
|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 2 | NORWALK WASTEWATER TREATMENT PLANT, NORWALK |
| Zinc compounds | 4 | NORWALK WASTEWATER TREATMENT PLANT, NORWALK |
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 |
|---|---|---|---|---|
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Aug 12, 2025 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Aug 12, 2025 | — | Open |
| cwa | Management Practice Violations - Failure to Maintain Records | Aug 12, 2025 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Aug 1, 2025 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jun 6, 2024 | — | Open |
| cwa | Permit Violations - Discharge Without a Valid Permit | Aug 9, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 9, 2023 | — | Open |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Jul 17, 2017 | Aug 28, 2017 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Jul 17, 2017 | Aug 28, 2017 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jul 17, 2017 | Aug 28, 2017 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Air Emission Standards for Equipment Leaks | Jul 17, 2017 | Aug 28, 2017 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Air Emission Standards for Tanks, Surface Impoundments and Containers | Jul 17, 2017 | Aug 28, 2017 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Sep 24, 2015 | Sep 24, 2015 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Air Emission Standards for Equipment Leaks | May 18, 2010 | Jun 30, 2011 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 18, 2010 | May 18, 2010 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Feb 9, 2005 | Mar 24, 2005 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jan 5, 1999 | Sep 28, 2000 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Dec 28, 1993 | Aug 26, 1994 | Resolved |
| rcra | Land Disposal Restrictions: General | Dec 28, 1993 | Aug 26, 1994 | Resolved |
| rcra | Standards Applicable to Generators of HW: Exports of HW | Dec 18, 1993 | Aug 26, 1994 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Sep 27, 1991 | Feb 22, 1995 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Feb 1, 1985 | Sep 27, 1991 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Nov 3, 1983 | Sep 27, 1991 | 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 |
|---|---|---|---|---|---|---|
| Copper, total [as Cu] | DMR, Limited - Numeric Violation | 0.13 mg/L | 0.05 | +183% | Apr 2021 | Open |
| Copper, total [as Cu] | DMR, Limited - Numeric Violation | 0.13 mg/L | 0.08 | +69% | Apr 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 64.00 mg/L | 30.00 | +113% | Apr 2019 | 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.
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-CTD042279513-001 · Sep 6, 2018
Administrative - Formal
· Case 01-2000-0213 · Sep 29, 2000
$16,283
Administrative - Formal
· Case 01-1999-0069 · Feb 4, 1999
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-CTD042279513-000 · Apr 21, 1992
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-CTD042279513-005 · Mar 13, 1985
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-CTD042279513-003 · Oct 17, 1984
$2,813
INITIAL MONITORING,ANALYSIS,TEST ORDER
RCRA (Hazardous Waste)
· Case RCRA-CTD042279513-002 · Mar 31, 1984
$1,094
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