Clean Water Act discharge permit · NPDES IL0026123

FERMILAB, Batavia, IL: NPDES IL0026123 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
5Pollutants under a numeric limit
2Pollutants with an effluent exceedance

FERMILAB, held by US DEPT OF ENERGY, holds NPDES permit IL0026123, which discharges to Ferry Ck, Kress Ck, Indian Ck. EPA’s file records it issued September 4, 2019 and expiring August 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	FERMILAB
Permittee as filed	US DEPT OF ENERGY
NPDES ID	IL0026123
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Federal facility
Issued	September 4, 2019
Expiration date	August 31, 2024
Address	Batavia, IL 60510
Receiving water	FERRY CK, KRESS CK, INDIAN CK
Receiving water impaired	303(D) Listed
Subwatershed	Town of Aurora (HUC 071200070107)
SIC	8733 – Noncommercial Research Organizations
Other EPA IDs (FRS)	RCRA handler IL6890030046; ICIS-AIR source IL000043807AAI

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

8Pollutants on file
5Under a numeric limit
8With a violation of any kind
2With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
pH	12	15	9	May 31, 2026
Chlorine, total residual	2	4	2	November 30, 2014	220% over the limit
Tritium, total	12	4	0
Temperature, water deg. fahrenheit	12	3	0
Flow, in conduit or thru treatment plant	12	3	0
Chloride [as Cl]	0	1	0
Sulfate, total [as SO4]	0	1	0
Solids, total dissolved	0	1	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0026123.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IL0026123 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit IL0026123, held by US DEPT OF ENERGY for FERMILAB in Batavia, IL, with a status of administratively continued and a Minor Discharger class. The facts list 2 pollutants under a numeric limit and 2 pollutants with an effluent exceedance, and the permit's issue and expiration dates are shown as September 4, 2019 and August 31, 2024.