TRI Reporter Clean Air Act Clean Water Act RCRA

SKYWATER TECHNOLOGY INC

Quick Summary

•Released 34 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
•Assessed $0 in total penalties since records began.
•Reports releases of PFAS ("forever chemicals").
•Reports releases of chemicals classified as known or probable carcinogens.

Address: 2401 E. 86TH ST.
BLOOMINGTON, MN 55425
View on map ↗
County: HENNEPIN County
Industry: Manufacturing
NAICS (North American Industry Classification): 334413
Inspections: 2 · last Jun 4, 2024
Total Penalties: $0
Registry ID: 110000425807

How This Compares

#286 of 421 TRI reporters in MN

#10,906 of 16,877 TRI reporters in Manufacturing

Ranked by most recent year's total TRI releases.

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) -100% overall

Year	Total Releases (lbs)	vs Prior Year
2015	1,673	—
2016	52	-97%
2017	34	-36%
2018	47	+40%
2019	41	-13%
2020	32	-21%
2021	30	-7%
2022	75	+149%
2023	111	+48%
2024	0	-100%

2024

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Hydrogen fluoride	—	—	—	—	1,032

2023

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Perfluorobutanoic acid	—	—	—	—	0	PFAS
Perfluorotetradecanoic acid	—	—	—	—	0	PFAS
Perfluorododecanoic acid	—	—	—	—	0	PFAS
Perfluorooctanoic acid	—	—	—	—	0	♦ Carcinogen PFAS
Perfluorodecanoic acid	—	—	—	—	0	PFAS
Perfluorononanoic acid	—	—	—	—	0	PFAS
Hydrogen fluoride	64	64	—	—	2,293
Perfluorobutane sulfonic acid	47	47	—	—	984	PFAS
Poly(oxy-1,2-ethanediyl), a-hydro-�-hydroxy-, ether with a-fluoro-�-(2-hydroxyethyl)poly(difluoromethylene) (1:1)	0	0	—	—	1	PFAS

2022

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Hydrogen fluoride	75	75	—	—	1,380

2021

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Hydrogen fluoride	30	30	—	—	1,064

2020

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Hydrogen fluoride	32	32	—	—	939

2019

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Hydrogen fluoride	41	41	—	—	10,132

2018

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Hydrogen fluoride	47	47	—	—	1,286

2017

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Hydrogen fluoride	34	34	—	—	1,066

2016

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Hydrogen fluoride	52	52	—	—	907

2015

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Ammonia	1,621	33	1,589	—	2,157
Hydrogen fluoride	52	52	—	—	886

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
Hydrogen fluoride	—	—	—	31,387

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
PRINDLE DRUM CO CASA GRANDE, AZ	Hydrogen fluoride	—	—	—	1,032

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 - Frequency of Sampling Violation	Sep 26, 2023	Jan 30, 2024	Resolved
cwa	Permit Violations - Failure to Submit Timely Permit Renewal Application	Sep 26, 2023	Jan 30, 2024	Resolved
cwa	Effluent Violations - Unauthorized Discharge	Sep 26, 2023	Jan 30, 2024	Resolved
cwa	Management Practice Violations - Failure to Develop/Enforce Standards	Sep 26, 2023	Jan 30, 2024	Resolved
cwa	Effluent Violations - Narrative Effluent Violation	Sep 26, 2023	Jan 30, 2024	Resolved
cwa	Monitoring Violations - Analysis not Conducted	Sep 26, 2023	Jan 30, 2024	Resolved
cwa	Monitoring Violations - Improper Analysis or Lab Error	Sep 26, 2023	Jan 30, 2024	Resolved
cwa	Schedule Event achieved late but reported	Apr 3, 2022	—	Open
rcra	Standards Applicable to Generators of HW: General	Sep 24, 2020	Sep 24, 2020	Resolved
rcra	Standards Applicable to Generators of HW: General	May 20, 2008	Jun 2, 2008	Resolved
rcra	Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators	Jul 26, 2007	Sep 13, 2007	Resolved
rcra	Standards Applicable to Generators of HW: General	Jul 26, 2007	Sep 13, 2007	Resolved
rcra	Standards Applicable to Generators of HW: General	Nov 15, 2004	Feb 28, 2005	Resolved
cwa	Permit Violations - Violation Specified in Comment	Sep 6, 1991	—	Open
cwa	Schedule Event unachieved and not reported	Mar 20, 1990	Feb 20, 1991	Resolved
cwa	Schedule Event achieved late but reported	Mar 20, 1990	—	Open

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	2.70 kg/d	1.90	+42%	Dec 2021	Resolved
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	3.10 kg/d	1.90	+63%	Oct 2021	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	2.10 kg/d	1.90	+11%	Sep 2020	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.

State CWA Non Penalty AO

Clean Water Act · Case MN-00N002065NON20231 · Dec 11, 2023

WRITTEN INFORMAL

RCRA (Hazardous Waste) · Case RCRA-MND118765791-001 · Aug 1, 2007