Clean Water Act discharge permit · NPDES NE0000663

MARTIN MARIETTA MATERIALS, LLC - FORT CALHOUN QUARRY EAST, Fort Calhoun, NE: NPDES NE0000663 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
2Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

MARTIN MARIETTA MATERIALS, LLC - FORT CALHOUN QUARRY EAST, held by Martin Marietta Materials, LLC - Fort Calhoun Quarry East, holds NPDES permit NE0000663, which discharges to Missouri River. EPA’s file records it issued March 6, 2014 and expiring March 31, 2019.

MARTIN MARIETTA MATERIALS, LLC - FORT CALHOUN QUARRY EAST, Fort Calhoun, Nebraska: Individual permit NE0000663, held by Martin Marietta Materials, LLC - Fort Calhoun Quarry East; Administratively continued (past its expiration date and still in force until reissued); issued March 6, 2014, term to March 31, 2019; discharges to MISSOURI RIVER.

Solids, total suspended: 4 limits, 33 violations of any kind, 4 effluent exceedances, latest September 30, 2017, largest 116% over the limit.
pH: 4 limits, 24 violations of any kind, 2 effluent exceedances, latest December 31, 2005.
Flow, in conduit or thru treatment plant: 4 limits, 22 violations of any kind, 0 effluent exceedances.
BOD, 5-day, 20 deg. C: 4 limits, 4 violations of any kind, 0 effluent exceedances.
Nitrogen, ammonia total [as N]: 4 limits, 4 violations of any kind, 0 effluent exceedances.
Carbon, tot organic [TOC]: 4 limits, 4 violations of any kind, 0 effluent exceedances.
Chemical Oxygen Demand [COD]: 4 limits, 4 violations of any kind, 0 effluent exceedances.
Dieldrin: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Polychlorinated biphenyls [PCBs]: 2 limits, 2 violations of any kind, 0 effluent exceedances.

MARTIN MARIETTA MATERIALS, LLC - FORT CALHOUN QUARRY EAST among its neighbors

EPA’s permit file holds 6 discharge permits in the Moores Creek-Missouri River subwatershed (HUC 102300060502), NE0000663 among them. Its county holds 16, 2 of them major permits; NE0000663 is a minor permit.

Other permits in the Moores Creek-Missouri River subwatershed (HUC 102300060502)

CARGILL LACTIC ACID, Blair: NE0133086, minor permit, discharging to MISSOURI RIVER, permit term to September 30, 2023
EVONIK CORPORATION, Blair: NE0132594, minor permit, discharging to MISSOURI RIVER, permit term to June 30, 2023
MARTIN MARIETTA MATERIALS, INC - FORT CALHOUN WEST QUARRY, Fort Calhoun: NE0138185, minor permit, discharging to MISSOURI RIVER VIA UNNAMED TRIBUTARIES, permit term to March 31, 2019
NOVOZYMES BLAIR, INC., Blair: NE0138754, minor permit, permit term to March 31, 2022
OPPD FORT CALHOUN STATION, Fort Calhoun: NE0000418, major permit, discharging to MISSOURI RIVER, permit term to December 31, 2020

Identity

Facility as filed	MARTIN MARIETTA MATERIALS, LLC - FORT CALHOUN QUARRY EAST
Permittee as filed	Martin Marietta Materials, LLC - Fort Calhoun Quarry East
NPDES ID	NE0000663
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 6, 2014
Expiration date	March 31, 2019
Address	Fort Calhoun, NE 68023
Receiving water	MISSOURI RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Moores Creek-Missouri River (HUC 102300060502)
Other EPA IDs (FRS)	RCRA handler NED042583781; ICIS-AIR source NE0000003117700006

Effluent limits and exceedances

9Pollutants on file
9Under a numeric limit
9With 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
Solids, total suspended	4	33	4	September 30, 2017	116% over the limit
pH	4	24	2	December 31, 2005
Flow, in conduit or thru treatment plant	4	22	0
BOD, 5-day, 20 deg. C	4	4	0
Nitrogen, ammonia total [as N]	4	4	0
Carbon, tot organic [TOC]	4	4	0
Chemical Oxygen Demand [COD]	4	4	0
Dieldrin	2	2	0
Polychlorinated biphenyls [PCBs]	2	2	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES NE0000663.

Inspections

EPA’s inspection file holds no inspection for NPDES NE0000663.

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 NE0000663.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act discharge permit NPDES NE0000663, held by MARTIN MARIETTA MATERIALS, LLC - FORT CALHOUN QUARRY EAST in Fort Calhoun, NE, which discharges to the MISSOURI RIVER. The page lists a permit status of administratively continued, a discharger class of Minor, 9 pollutants under a numeric limit, and 2 pollutants with an effluent exceedance.