Clean Water Act discharge permit · NPDES AR0050075

ERGON ASPHALT AND EMULSIONS-LITTLE ROCK PLANT, Little Rock, AR: NPDES AR0050075 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
5Pollutants under a numeric limit
1Pollutants with an effluent exceedance

ERGON ASPHALT AND EMULSIONS-LITTLE ROCK PLANT, held by SEMMATERIALS, L.P.; FMRLY: K0C, holds NPDES permit AR0050075, which discharges to Trib,Fish Ck,Arkansas Rv. EPA’s file records it issued November 30, 2003 and expiring November 30, 2008. 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	ERGON ASPHALT AND EMULSIONS-LITTLE ROCK PLANT
Permittee as filed	SEMMATERIALS, L.P.; FMRLY: K0C
NPDES ID	AR0050075
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	November 30, 2003
Expiration date	November 30, 2008
Address	Little Rock, AR 72206
Receiving water	TRIB,FISH CK,ARKANSAS RV
Subwatershed	Fish Creek (HUC 111102070301)
SIC	2951 – Asphalt Paving Mixtures And Blocks
Other EPA IDs (FRS)	RCRA handler ARR000018895; ICIS-AIR source AR0000000511900676

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

5Pollutants on file
5Under a numeric limit
5With a violation of any kind
1With 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	2	7	5	November 30, 2012	55% over the limit
Oil & Grease	4	4	0
Oxygen demand, chem. [low level] [COD]	2	2	0
pH	2	2	0
Flow, in conduit or thru treatment plant	2	2	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 AR0050075.

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.

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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 AR0050075 there.

Nearby on the register

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

This public-records page covers NPDES permit AR0050075 for the Ergon Asphalt and Emulsions-Little Rock Plant in Little Rock, AR, held by SEMMATERIALS, L.P.; FMRLY: K0C and discharging to Trib,Fish Ck,Arkansas Rv. The permit is listed as administratively continued, with a Minor discharger class of 5, one pollutant under a numeric limit, and one pollutant with an effluent exceedance. EPA's file shows the permit was issued November 30, 2003 and expires November 30, 2008.