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Clean Water Act discharge permit · NPDES TNP100014

ALCOA WARRICK OPERATIONS (FKA BUZZI UNICEM USA FKA SIGNAL MOUNTAINCEMENT COMPANY, Chattanooga, TN: NPDES TNP100014 discharge permit, effluent exceedances, inspections, penalties

ALCOA WARRICK OPERATIONS (FKA BUZZI UNICEM USA FKA SIGNAL MOUNTAINCEMENT COMPANY, held by Signal Mountain Cement Co. dba Buzzi Unicem USA, holds NPDES permit TNP100014, which discharges to Tennessee River (Chattanooga Area - Nickajack). EPA’s file records it issued June 16, 2017 and expiring April 30, 2022. 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.

What the register holds for ALCOA WARRICK OPERATIONS (FKA BUZZI UNICEM USA FKA SIGNAL MOUNTAINCEMENT COMPANY: its NPDES ID, its permit type and status, its dates, its address in Chattanooga, Tennessee, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TNP100014.

Identity

Facility as filedALCOA WARRICK OPERATIONS (FKA BUZZI UNICEM USA FKA SIGNAL MOUNTAINCEMENT COMPANY
Permittee as filedSignal Mountain Cement Co. dba Buzzi Unicem USA
NPDES IDTNP100014
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 16, 2017
Expiration dateApril 30, 2022
Issuing agencyTDEC - DWR
AddressChattanooga, TN 37405
Receiving waterTennessee River (Chattanooga Area - Nickajack)
SubwatershedTennessee River-Nickajack Lake Upper (HUC 060200011202)
NAICS325320 – Pesticide and Other Agricultural Chemical Manufacturing
SIC2879 – Agricultural Chemicals
Other EPA IDs (FRS)RCRA handler TNR000041871; ICIS-AIR source TNCHC0004706503070

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES TNP100014.

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 TNP100014.

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 TNP100014 there.

Nearby on the register

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

What this page shows

The ALCOA WARRICK OPERATIONS (FKA BUZZI UNICEM USA FKA SIGNAL MOUNTAINCEMENT COMPANY) general permit coverage in Chattanooga, Hamilton County, Tennessee, is one of 20 general permit coverages on the register for that county, including this one. It sits among 129 NPDES permits in the Tennessee River-Nickajack Lake Upper subwatershed, and it has no pollutants under a numeric limit and no pollutants with an effluent exceedance (both counted as 0).