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Clean Water Act discharge permit · NPDES MD0002151

HOLCIM (US) INC., Hagerstown, MD: NPDES MD0002151 discharge permit, effluent exceedances, inspections, penalties

HOLCIM (US) INC., held by Holcim (US) Inc., holds NPDES permit MD0002151, which discharges to Upper Potomac River - Antietam Creek. EPA’s file records it issued September 18, 2015 and expiring October 31, 2020. 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 filedHOLCIM (US) INC.
Permittee as filedHolcim (US) Inc.
NPDES IDMD0002151
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 18, 2015
Expiration dateOctober 31, 2020
Issuing agencyMD DEPT OF THE ENVIRONMENT
AddressHagerstown, MD 21742
Receiving waterUPPER POTOMAC RIVER - ANTIETAM CREEK
Receiving water impaired303(D) Listed
SubwatershedMiddle Antietam Creek (HUC 020700041006)
SIC3241 – Cement, Hydraulic
Other EPA IDs (FRS)RCRA handler MDD003075694; ICIS-AIR source MD0000002404300008

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

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
Solids, total suspended2410818August 31, 20241,080% over the limit
Solids, settleable4223May 31, 2025300% over the limit
pH28762December 31, 2023
BOD, 5-day, 20 deg. C8171May 31, 20003% over the limit
Flow, in conduit or thru treatment plant28720
Temperature, water deg. fahrenheit16380
Temp. diff. between up/down stream deg. F280
Chlorine, total residual470
Coliform, fecal general070
Oxygen, dissolved [DO]240
E. coli210
Temp. diff. between samp. & upstrm deg. F010

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 MD0002151.

Inspections

EPA’s inspection file holds no inspection for NPDES MD0002151.

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 MD0002151.

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 MD0002151 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 discharge permit NPDES MD0002151, held by HOLCIM (US) INC. in Hagerstown, MD, with the permittee listed as Holcim (US) Inc. The permit is administratively continued, is an individual permit for a minor discharger, and discharges to the Upper Potomac River - Antietam Creek, which is 303(D) listed, in the Middle Antietam Creek subwatershed (HUC 020700041006). The page lists 4 pollutants under a numeric limit and 4 pollutants with an effluent exceedance.