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Clean Water Act discharge permit · NPDES GA0038121

IMERYS CARBONATES USA, INC., Cisco, GA: NPDES GA0038121 discharge permit, effluent exceedances, inspections, penalties

IMERYS CARBONATES USA, INC., held by O-N MINERALS CHEMSTONE COMPANY, holds NPDES permit GA0038121, which discharges to Unnamed Trib. Perry Crk.-Coosa Rb. EPA’s file records it issued April 22, 2010 and expiring December 31, 2014. 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 filedIMERYS CARBONATES USA, INC.
Permittee as filedO-N MINERALS CHEMSTONE COMPANY
NPDES IDGA0038121
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedApril 22, 2010
Expiration dateDecember 31, 2014
Issuing agencyGA DNR HQ
AddressCisco, GA 30708
Receiving waterUNNAMED TRIB. PERRY CRK.-COOSA RB
SubwatershedPerry Creek-Conasuaga River (HUC 031501010105)
NAICS212312 – Crushed and Broken Limestone Mining and Quarrying
SIC1429 – Crushed And Broken Stone

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH2371February 29, 2016
Solids, total suspended2380
Turbidity2360
Flow, in conduit or thru treatment plant2360
Solids, sludge, total, dry weight050

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES GA0038121.

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 GA0038121 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES permit GA0038121, held by IMERYS CARBONATES USA, INC. at Cisco, GA, with the permit status shown as Effective. The register lists a Minor discharger class, 1 pollutant under a numeric limit, and 1 pollutant with an effluent exceedance, with the permit issued April 22, 2010 and expiring December 31, 2014.