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Clean Water Act discharge permit · NPDES COR430789

MMR OFFICE & WAREHOUSE, Centennial, CO: NPDES COR430789 discharge permit, effluent exceedances, inspections, penalties

MMR OFFICE & WAREHOUSE, held by Baker Constructors, holds NPDES permit COR430789. EPA’s file records it issued May 21, 2026 and expiring March 31, 2029. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for MMR OFFICE & WAREHOUSE: its NPDES ID, its permit type and status, its dates, its address in Centennial, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR430789.

Identity

Facility as filedMMR OFFICE & WAREHOUSE
Permittee as filedBaker Constructors
NPDES IDCOR430789
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 21, 2026
Expiration dateMarch 31, 2029
AddressCentennial, CO 80112
SubwatershedCherry Creek Lake-Cherry Creek (HUC 101900030303)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR430789.

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 COR430789.

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 COR430789 there.

Nearby on the register

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

What this page shows

The MMR OFFICE & WAREHOUSE general permit coverage in Centennial, Colorado, is one of 360 general permit coverages on EPA's NPDES register for Arapahoe County, and 90.6% of those coverages carry an earlier issue date than this one. It also sits among 70 NPDES permits in the Cherry Creek Lake-Cherry Creek subwatershed, and it has no pollutants under a numeric limit or effluent exceedances on file.