Clean Water Act discharge permit · NPDES IN0002895

BWX TECHNOLOGIES INC, Mount Vernon, IN: NPDES IN0002895 discharge permit, effluent exceedances, inspections, penalties

Name: BWX TECHNOLOGIES INC, NPDES IN0002895: Clean Water Act discharge permit record
Creator: Velarion Records
License: https://www.usa.gov/government-works

Administratively continuedPermit status
MinorDischarger class
16Pollutants under a numeric limit
8Pollutants with an effluent exceedance
2Inspections on file
0Formal enforcement actions

BWX TECHNOLOGIES INC holds NPDES permit IN0002895, which discharges to Ohio R Via Unnamed Tributary. EPA’s file records it issued March 29, 2017 and expiring May 31, 2022.

BWX TECHNOLOGIES INC, Mount Vernon, Indiana: Individual permit IN0002895; Administratively continued (past its expiration date and still in force until reissued); issued March 29, 2017, term to May 31, 2022, by IDEM; discharges to OHIO R VIA UNNAMED TRIBUTARY.

Solids, total suspended: 6 limits, 109 violations of any kind, 101 effluent exceedances, latest April 30, 2022, largest 2,111% over the limit.
Oil & Grease: 0 limits, 34 violations of any kind, 30 effluent exceedances, latest December 31, 2011, largest 4,367% over the limit.
BOD, carbonaceous [5 day, 20 C]: 4 limits, 23 violations of any kind, 19 effluent exceedances, latest July 31, 2021, largest 99,999% over the limit.
E. coli, colony forming units [CFU]: 3 limits, 21 violations of any kind, 18 effluent exceedances, latest May 31, 2026, largest 99,999% over the limit.
Chlorine, total residual: 4 limits, 23 violations of any kind, 17 effluent exceedances, latest March 31, 1999, largest 99,999% over the limit.
pH: 4 limits, 9 violations of any kind, 5 effluent exceedances, latest August 31, 2010.
Nickel, total [as Ni]: 0 limits, 8 violations of any kind, 4 effluent exceedances, latest February 29, 1996, largest 71% over the limit.
Oxygen, dissolved [DO]: 2 limits, 4 violations of any kind, 1 effluent exceedance, latest June 30, 2006, largest 7% over the limit.
Flow, in conduit or thru treatment plant: 4 limits, 8 violations of any kind, 0 effluent exceedances.
Chromium, total [as Cr]: 0 limits, 4 violations of any kind, 0 effluent exceedances.
Flow, total: 2 limits, 3 violations of any kind, 0 effluent exceedances.
Temperature, water deg. fahrenheit: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Number of Events: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Nitrogen, nitrate total [as NO3]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Nitrogen, nitrite total [as NO2]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 6 limits, 0 violations of any kind, 0 effluent exceedances.
Oil and grease, hexane extr method: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Nickel, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Chromium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.

September 16, 2026: Evaluation (S).
September 16, 2026: Evaluation (S).

BWX TECHNOLOGIES INC among its neighbors

EPA’s permit file holds 35 discharge permits in the Beaverdam Creek-Ohio River subwatershed (HUC 051402020605), IN0002895 among them. Its county holds 55, 4 of them major permits; IN0002895 is a minor permit.

Other permits in the Beaverdam Creek-Ohio River subwatershed (HUC 051402020605)

ADM MILLING COMPANY - MOUNT VERNON, Mount Vernon: INRM00654, minor permit, discharging to Ohio River, permit term to May 17, 2022
AGGREGATE YARD, Mt. Vernon: INRA18310, minor permit, permit term to June 8, 2031
BRITTLEBANK PARK, Mount Vernon: INRA14091, minor permit, permit term to June 18, 2029
BUILDING 87 OPERATIONS AND MAINTENANCE BUILDING, Mount Vernon: INRA07718, minor permit, permit term to April 15, 2026
BWX TECHNOLOGIES, INC, Mount Vernon: INRA18400, minor permit, permit term to June 21, 2031
CASTLEN STEEL INC. MT. VERNON FERTILIZER TERMINAL BUILDING, Mt. Vernon: INRA12875, minor permit, permit term to November 20, 2028
CF INDUSTRIES DISTRIBUTION FACILITIES LLC - MT. VERNON TERMINAL, Mount Vernon: IN0059773, minor permit, discharging to OHIO RIVER, permit term to September 30, 2022
CIMBAR PERFORMANCE MINERALS MV, LLC, Mount Vernon: INRM01489, minor permit, permit term to December 29, 2019
CONSOLIDATED GRAIN & BARGE COMPANY, Mount Vernon: INRM01824, minor permit, discharging to Ohio River, permit term to January 12, 2025
CONSOLIDATED GRAIN & BARGE MT. VERNON, Mount Vernon: INRA17712, minor permit, permit term to March 8, 2031

Identity

Facility as filed	BWX TECHNOLOGIES INC
Permittee as filed	BWX TECHNOLOGIES INC
NPDES ID	IN0002895
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 29, 2017
Expiration date	May 31, 2022
Issuing agency	IDEM
Address	Mount Vernon, IN 47620
Receiving water	OHIO R VIA UNNAMED TRIBUTARY
Subwatershed	Beaverdam Creek-Ohio River (HUC 051402020605)
SIC	3443 – Fabricated Plate Work (Boiler Shops)
Other EPA IDs (FRS)	RCRA handler IND006372064; ICIS-AIR source IN0000001812900022

Effluent limits and exceedances

19Pollutants on file
16Under a numeric limit
15With a violation of any kind
8With 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
Solids, total suspended	6	109	101	April 30, 2022	2,111% over the limit
Oil & Grease	0	34	30	December 31, 2011	4,367% over the limit
BOD, carbonaceous [5 day, 20 C]	4	23	19	July 31, 2021	99,999% over the limit
E. coli, colony forming units [CFU]	3	21	18	May 31, 2026	99,999% over the limit
Chlorine, total residual	4	23	17	March 31, 1999	99,999% over the limit
pH	4	9	5	August 31, 2010
Nickel, total [as Ni]	0	8	4	February 29, 1996	71% over the limit
Oxygen, dissolved [DO]	2	4	1	June 30, 2006	7% over the limit
Flow, in conduit or thru treatment plant	4	8	0
Chromium, total [as Cr]	0	4	0
Flow, total	2	3	0
Temperature, water deg. fahrenheit	2	2	0
Number of Events	2	2	0
Nitrogen, nitrate total [as NO3]	2	2	0
Nitrogen, nitrite total [as NO2]	2	2	0
Phosphorus, total [as P]	6	0	0
Oil and grease, hexane extr method	2	0	0
Nickel, total recoverable	2	0	0
Chromium, total recoverable	2	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0002895.

Inspections

Date	What EPA recorded	Agency
September 16, 2026	Evaluation	S
September 16, 2026	Evaluation	S

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IN0002895.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IN0002895.

Start the watch

How we handle your data → Privacy

Nearby on the register

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

This page is a Velarion Records register entry for NPDES permit IN0002895, held by BWX TECHNOLOGIES INC at Mount Vernon, IN, and covering its discharge to the Ohio R via Unnamed Tributary. The facts list a permit status of Administratively continued, a Minor discharger class, 16 pollutants under a numeric limit, and 8 pollutants with an effluent exceedance, with the permit's issue and expiration dates as recorded in EPA's file at the time of loading.