Updated Oct 21, 2026

Hydrite Chemical Co

As of Oct 21, 2026, Hydrite Chemical Co in Cottage Grove, Wisconsin received 10,281 tons of hazardous waste from off-site in the 2023 Biennial Report and has 35 RCRA violations determined in the last five years.

114 N Main St, Cottage Grove, Wisconsin 53527-9701

Verified Oct 21, 2026 against U.S. EPA RCRAInfo

Hydrite Chemical Co (EPA ID WID000808824) is a permitted hazardous-waste treatment, storage and disposal facility in Cottage Grove, Wisconsin, operated by Hydrite Chemical Co. Operating permitted units: storage. In the 2023 Biennial Report it received 10,281 tons of hazardous waste from off-site. EPA waste-code classes received: Spent solvents (F001–F005), Ignitable waste (D001). Received waste was managed mainly by solvent recovery. Last on-site inspection: September 10, 2026. In the last five years: 7 inspections, 35 violations, 0 formal enforcement actions and $0 in final penalties. Most cited areas: Generators - General; Federal or State Statute; TSD IS-Air Emission Standards - Equipment Leaks; TSD - Manifest/Records/Reporting. It is not currently flagged as a significant noncomplier.

Key facts

Facility type	Industrial site receiving off-site waste “Waste management firm” when the primary NAICS code is in waste management and remediation services (562); “industrial site receiving off-site waste” when another industry's site records waste received from off-site in its latest Biennial Report; otherwise an industrial or government site that also holds a TSDF permit. A NAICS code is classification evidence, not proof of whether a facility takes outside business. source, unchanged since Oct 20, 2026
Off-site receipts (latest Biennial Report)	10,000–100,000 tons in 2023 Banded tons of hazardous waste received from off-site, with the Biennial Report year (EPA publishes each cycle about two years after it ends). source, unchanged since Oct 19, 2026
Violation record (5 years)	21+ violations Violations determined in the last five years, banded. A facility with none can still have formal enforcement or penalties in those years for violations determined earlier; its band says so. source, unchanged since Oct 19, 2026
How received waste was managed	Solvent recovery Management methods reported for the off-site waste it received in the latest Biennial Report (methods used for at least 2% of tons). source, unchanged since Oct 19, 2026
Waste received, by EPA code class	Spent solvents (F001–F005), Ignitable waste (D001) Main EPA waste-code classes on the off-site waste it reported receiving in the latest Biennial Report: classes with at least 5% of tons received, each waste line's tons split evenly across the classes on it. This is what it took in, not a permit limit. source, unchanged since Oct 19, 2026
Permitted operating units	Storage Process types of the facility's current RCRA permit units with an operating legal status. source, unchanged since Oct 19, 2026
Final penalties, last 5 years	0 USD source, unchanged since Oct 19, 2026
Formal enforcement actions, last 5 years	0 source, unchanged since Oct 19, 2026
Last on-site inspection	Sep 10, 2026 Most recent on-site compliance evaluation by EPA or the state (record reviews excluded). source, unchanged since Oct 19, 2026
Significant noncomplier now	No RCRAInfo significant-noncomplier (SNC) flag. source, unchanged since Oct 19, 2026
EPA ID	WID000808824 source, unchanged since Oct 19, 2026
Operator	Hydrite Chemical Co source, unchanged since Oct 19, 2026
Owner type	Private source, unchanged since Oct 19, 2026
Land ownership	Private source, unchanged since Oct 20, 2026
Off-site receipt flag (RCRAInfo notification)	Yes source, unchanged since Oct 19, 2026
Commercial TSDF	Yes source, unchanged since Oct 19, 2026
Waste received from off-site	10,281.2 tons source, unchanged since Oct 19, 2026
Manifests received (e-Manifest, 12 months)	1,461 source
Tons received on those manifests	8,816.1 tons source
Shipping sites on those manifests	59 source
Latest manifested receipt	Jul 17, 2026 source
Biennial Report cycle	2023 source, unchanged since Oct 19, 2026
Inspections, last 5 years	7 source, unchanged since Oct 19, 2026
Violations, last 5 years	35 source, unchanged since Oct 19, 2026
Violations not yet returned to compliance	0 source, unchanged since Oct 19, 2026
Violation areas (5 years)	Generators - General, Federal or State Statute, TSD IS-Air Emission Standards - Equipment Leaks, TSD - Manifest/Records/Reporting source, unchanged since Oct 19, 2026
Universal waste destination facility	No source, unchanged since Oct 19, 2026
Used oil activities	No source, unchanged since Oct 19, 2026
Transfer facility	No source, unchanged since Oct 19, 2026
Recycler	Yes source, unchanged since Oct 19, 2026
Primary NAICS	325199 source, unchanged since Oct 19, 2026
Why this facility type	Primary NAICS 325199 is not a waste-management code (562), and the 2023 Biennial Report records 10,281.2 tons received from off-site. source, unchanged since Oct 20, 2026

Source event history

Source dates and first observation are different. A notice is not confirmation that a suspension took effect.

Sep 10, 2026: Inspected on site Official source
Jul 17, 2026: Received a manifested shipment Official source

Dates on this record

Source updated	Oct 18, 2026 (date of the weekly RCRAInfo export read (the whole dataset, not this record))
Collected	Oct 21, 2026, 12:39 PM ET (the last successful check of the source that included this record)
Effective	Inspected on site: Sep 10, 2026; Received a manifested shipment: Jul 17, 2026 (when the source says each fact took effect)
Retired	Not retired: the source is still maintained (whether the dataset is still maintained)

In Wisconsin

11 hazardous waste facilities in the dataset are in Wisconsin; 10 have profiles on this site. Hazardous waste facilities in Wisconsin

Facility type (all 11 here): Waste management firm 9 (82%) · Industrial site receiving off-site waste 1 (9%) · Industrial site 1 (9%)

Off-site receipts (latest Biennial Report) (all 11 here): Under 1,000 tons in 2023 5 (45%) · 10,000–100,000 tons in 2023 2 (18%) · 1,000–10,000 tons in 2023 2 (18%) · None on record 2 (18%)

Violation record (5 years) (all 11 in this group): 21+ violations (6) · 6–20 violations (5)

How received waste was managed (all 11 in this group; a record can count under several values): Storage and transfer (8) · Fuel blending (4) · Solvent recovery (2) · Stabilization (1) · Neutralization (1) · Metals recovery (1) · None on record (2)

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Browse related lists

TSDF: A facility permitted under RCRA to treat, store or dispose of hazardous waste.

Significant noncomplier: EPA's designation for facilities with serious or chronic RCRA violations. The regulator sets and lifts it, so it can stay on while an enforcement case or compliance schedule is open, even after the individual violations are marked as returned to compliance.

Biennial Report: The national report every two years of hazardous waste generated, managed, shipped and received; tons received are the latest cycle EPA has published.

Off-site receipt flag: What the facility last declared on its RCRA notification form. Facilities re-notify only when something changes, so the flag can be out of date: a facility flagged “No” can still report tons received from off-site in the Biennial Report, which records what it actually received. Where they disagree, the Biennial Report tons are the better evidence.

Formal enforcement: Legally binding actions (orders, consent agreements, civil or criminal cases), as opposed to informal warning letters.

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Something wrong or out of date? Suggest a correction. Source record ID WID000808824.