Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
AHLSTROM MOSINEE LLC
Quick Summary
- •Released 255,005 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
-
100 MAIN ST
MOSINEE, WI 54455
View on map ↗ - County
- MARATHON County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 322121
- Inspections
- 5 · last Sep 17, 2025
- Total Penalties
- $0 · last Aug 26, 1996
- Registry ID
- 110000422043
How This Compares
#15
of 713 TRI reporters in WI
#606
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.
12
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
10
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)
+15% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 278,930 | — |
| 2016 | 247,663 | -11% |
| 2017 | 255,005 | +3% |
| 2018 | 338,542 | +33% |
| 2019 | 51,292 | -85% |
| 2020 | 312,608 | +509% |
| 2021 | 324,039 | +4% |
| 2022 | 332,748 | +3% |
| 2023 | 305,826 | -8% |
| 2024 | 320,507 | +5% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 145,816 | 114,376 | 4,725 | 26,715 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 42,412 | 42,412 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 41,770 | 41,770 | — | — | — | |
| Ammonia | 30,495 | 23,928 | 5,907 | 660 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 28,055 | — | 27,729 | 326 | — | |
| Hydrogen sulfide | 14,197 | 13,297 | 73 | 827 | — | |
| Manganese compounds | 9,936 | 70 | 2,436 | 7,430 | — | |
| Acetaldehyde | 6,924 | 5,764 | 1,091 | 69 | — | ♦ Carcinogen |
| Lead compounds | 855 | 36 | 320 | 500 | — | |
| Polycyclic aromatic compounds | 19 | 19 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 18 | 7 | — | 11 | — | |
| Catechol | 8 | — | 4 | 4 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | 0 | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 139,302 | 113,517 | 5,183 | 20,602 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 37,825 | 37,825 | — | — | — | |
| Ammonia | 31,284 | 24,312 | 6,478 | 494 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 30,686 | 30,686 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 30,663 | — | 30,411 | 252 | — | |
| Hydrogen sulfide | 14,271 | 13,553 | 80 | 638 | — | |
| Manganese compounds | 9,952 | 65 | 2,671 | 7,216 | — | |
| Acetaldehyde | 6,855 | 5,709 | 1,093 | 53 | — | ♦ Carcinogen |
| Phenol | 4,087 | 4,048 | 4 | 34 | — | |
| Lead compounds | 858 | 33 | 351 | 475 | — | |
| Polycyclic aromatic compounds | 19 | 19 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 16 | 7 | — | 9 | — | |
| Catechol | 7 | — | 4 | 3 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | 0 | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 154,407 | 118,244 | 4,853 | 31,310 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 42,677 | 42,677 | — | — | — | |
| Ammonia | 33,694 | 26,873 | 6,066 | 755 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 31,800 | 31,800 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 28,850 | — | 28,477 | 373 | — | |
| Hydrogen sulfide | 15,260 | 14,216 | 75 | 969 | — | |
| Manganese compounds | 13,177 | 81 | 2,502 | 10,594 | — | |
| Acetaldehyde | 7,509 | 6,211 | 1,218 | 80 | — | ♦ Carcinogen |
| Phenol | 4,299 | 4,244 | 4 | 52 | — | |
| Lead compounds | 1,024 | 37 | 328 | 659 | — | |
| Polycyclic aromatic compounds | 22 | 22 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 18 | 7 | — | 11 | — | |
| Catechol | 8 | — | 4 | 5 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | 0 | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 150,471 | 117,560 | 4,243 | 28,668 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 41,707 | 41,707 | — | — | — | |
| Ammonia | 33,058 | 26,433 | 5,880 | 745 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 29,816 | 29,816 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 27,976 | — | 27,603 | 373 | — | |
| Manganese compounds | 15,036 | 81 | 2,425 | 12,530 | — | |
| Hydrogen sulfide | 14,938 | 13,881 | 73 | 984 | — | |
| Acetaldehyde | 9,925 | 8,646 | 1,198 | 81 | — | ♦ Carcinogen |
| Lead compounds | 1,063 | 36 | 318 | 709 | — | |
| Polycyclic aromatic compounds | 22 | 22 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 17 | 7 | — | 10 | — | |
| Catechol | 8 | — | 4 | 5 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | 0 | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 144,104 | 116,198 | 4,179 | 23,727 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 40,242 | 40,242 | — | — | — | |
| Ammonia | 33,964 | 27,537 | 5,791 | 636 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 27,494 | — | 27,185 | 309 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 25,348 | 25,348 | — | — | — | |
| Hydrogen sulfide | 15,087 | 14,201 | 72 | 814 | — | |
| Manganese compounds | 11,233 | 77 | 2,388 | 8,768 | — | |
| Acetaldehyde | 9,883 | 8,517 | 1,298 | 68 | — | ♦ Carcinogen |
| Phenol | 4,334 | 4,287 | 4 | 43 | — | |
| Lead compounds | 888 | 33 | 313 | 542 | — | |
| Polycyclic aromatic compounds | 22 | 22 | — | — | — | ♦ Carcinogen |
| Catechol | 8 | — | 4 | 4 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 2 | 2 | — | 0 | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 34,022 | 27,294 | 6,092 | 636 | — | |
| Manganese compounds | 11,909 | 71 | 2,512 | 9,326 | — | |
| Phenol | 4,315 | 4,267 | 4 | 44 | — | |
| Lead compounds | 1,028 | 45 | 330 | 654 | — | |
| Mercury compounds | 17 | 8 | — | 10 | — |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 147,449 | 118,411 | 4,591 | 24,447 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 42,935 | 42,935 | — | — | — | |
| Ammonia | 34,529 | 27,531 | 6,362 | 636 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 30,176 | — | 29,868 | 308 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 29,906 | 29,906 | — | — | — | |
| Hydrogen sulfide | 15,077 | 14,159 | 79 | 839 | — | |
| Zinc compounds | 12,256 | 40 | 2,427 | 9,788 | — | |
| Manganese compounds | 10,703 | 71 | 2,624 | 8,008 | — | |
| Acetaldehyde | 10,202 | 8,851 | 1,281 | 70 | — | ♦ Carcinogen |
| Phenol | 4,330 | 4,281 | 4 | 45 | — | |
| Lead compounds | 931 | 45 | 344 | 542 | — | |
| Polycyclic aromatic compounds | 23 | 23 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 17 | 7 | — | 10 | — | |
| Catechol | 8 | — | 4 | 4 | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | 0 | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 88,891 | 60,765 | 4,473 | 23,653 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 44,649 | 44,649 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 29,408 | — | 29,100 | 308 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 27,579 | 27,579 | — | — | — | |
| Ammonia | 25,747 | 18,912 | 6,199 | 636 | — | |
| Manganese compounds | 9,900 | 71 | 2,556 | 7,273 | — | |
| Hydrogen sulfide | 8,936 | 8,047 | 77 | 812 | — | |
| Zinc compounds | 7,599 | 40 | 2,365 | 5,194 | — | |
| Acetaldehyde | 6,052 | 4,739 | 1,245 | 68 | — | ♦ Carcinogen |
| Phenol | 5,331 | 5,284 | 4 | 43 | — | |
| Lead compounds | 863 | 43 | 336 | 485 | — | |
| Polycyclic aromatic compounds | 24 | 24 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 16 | 7 | — | 9 | — | |
| Catechol | 8 | — | 4 | 4 | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | 0 | — | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 87,591 | 59,932 | 4,164 | 23,495 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 43,597 | 43,597 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 27,392 | — | 27,086 | 306 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 26,352 | 26,352 | — | — | — | |
| Ammonia | 24,824 | 18,418 | 5,770 | 636 | — | |
| Manganese compounds | 9,877 | 69 | 2,379 | 7,429 | — | |
| Hydrogen sulfide | 9,145 | 8,268 | 71 | 806 | — | |
| Zinc compounds | 6,592 | 43 | 2,201 | 4,348 | — | |
| Acetaldehyde | 5,871 | 4,619 | 1,181 | 71 | — | ♦ Carcinogen |
| Phenol | 5,291 | 5,244 | 4 | 43 | — | |
| Lead compounds | 1,085 | 42 | 312 | 731 | — | |
| Polycyclic aromatic compounds | 23 | 23 | — | — | — | ♦ Carcinogen |
| Mercury compounds | 15 | 7 | — | 8 | — | |
| Catechol | 8 | — | 4 | 4 | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 1 | 1 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | 0 | — | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 95,100 | 54,200 | 4,200 | 36,700 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 45,000 | 45,000 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 37,000 | 37,000 | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 28,525 | — | 28,000 | 525 | — | |
| Ammonia | 27,050 | 20,050 | 6,000 | 1,000 | — | |
| Zinc compounds | 12,500 | 50 | 2,400 | 10,050 | — | |
| Manganese compounds | 11,225 | 75 | 2,600 | 8,550 | — | |
| Hydrogen sulfide | 10,137 | 8,800 | 77 | 1,260 | — | |
| Acetaldehyde | 5,855 | 4,550 | 1,200 | 105 | — | ♦ Carcinogen |
| Phenol | 5,467 | 5,400 | 4 | 63 | — | |
| Lead compounds | 1,017 | 45 | 315 | 657 | — | |
| Polycyclic aromatic compounds | 25 | 25 | — | 0 | — | ♦ Carcinogen |
| Mercury compounds | 17 | 7 | — | 10 | — | |
| Catechol | 12 | — | 4 | 8 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | 0 | — | ♦ Carcinogen |
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 |
|---|---|---|---|---|
| Acetaldehyde | — | — | 40 | 15,018 |
| Ammonia | — | — | — | 91,023 |
| Hydrogen sulfide | — | — | — | 72,476 |
| Catechol | — | — | — | 356 |
| Methanol | — | — | 63,782 | 2,355,609 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 1,351 |
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 - Analysis not Conducted | May 17, 2025 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jan 21, 2025 | Jan 21, 2025 | Resolved |
| caa | FRV | Oct 7, 2024 | — | Open |
| caa | FRV | Jan 16, 2024 | — | Open |
| caa | FRV | Dec 27, 2023 | — | Open |
| caa | FRV | Oct 15, 2023 | — | Open |
| caa | FRV | Sep 1, 2023 | — | Open |
| caa | FRV | Aug 9, 2023 | — | Open |
| caa | FRV | Aug 1, 2023 | — | Open |
| caa | FRV | Jul 11, 2023 | — | Open |
| caa | FRV | May 25, 2023 | — | Open |
| caa | FRV | May 22, 2023 | — | Open |
| caa | FRV | May 19, 2023 | — | Open |
| caa | FRV | Mar 4, 2023 | — | Open |
| cwa | Monitoring Violations - Analysis not Conducted | Mar 26, 2020 | — | Open |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Dec 12, 2016 | Jan 19, 2017 | Resolved |
| rcra | Standards for Used Oil: Generators | Dec 12, 2016 | Jan 19, 2017 | Resolved |
| rcra | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | Dec 12, 2016 | Jan 19, 2017 | 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 |
|---|---|---|---|---|---|---|
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 6.95 mg/L | 1.00 | +595% | Dec 2025 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.13 mg/L | 0.04 | +242% | Apr 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 3,014.56 kg/d | 2,966.44 | +2% | Jul 2022 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 4,032.88 kg/d | 2,966.44 | +36% | Jul 2021 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.14 kg/d | 0.12 | +11% | Jan 2021 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.90 mg/L | 1.00 | +390% | Oct 2020 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.20 mg/L | 1.00 | +20% | Dec 2019 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.15 mg/L | 0.04 | +295% | Apr 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 8,238.28 kg/d | 6,079.97 | +35% | Nov 2018 | Open |
| Temperature, water deg. fahrenheit | DMR, Limited - Numeric Violation | 135.00 deg F | 125.00 | +8% | Jul 2018 | Open |
| Temperature, water deg. fahrenheit | DMR, Limited - Numeric Violation | 140.00 deg F | 125.00 | +12% | Jul 2017 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 3,395.01 kg/d | 2,966.44 | +14% | Dec 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.
NOTICE OF NONCOMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-WID068480904-001 · Jan 19, 2017
Other facilities in MARATHON County, WI
PREMIER GLADE KRONENWETTER I, LLC SITE
KRONENWETTER, WI
FUSTEAD HOLSTEINS SITE
RINGLE, WI
51 AUTO BODY INC
MOSINEE, WI
MARATHON HIGH SCHOOL
MARATHON, WI
WHITE TAIL BAR
, WI
SCHOLFIELD MILL APARTMENTS LLC SITE
SCHOFIELD, WI