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Clean Water Act discharge permit · NPDES CAZ438527

ACM WEST, Rancho Cordova, CA: NPDES CAZ438527 discharge permit, effluent exceedances, inspections, penalties

ACM WEST, held by ACM Machining, holds NPDES permit CAZ438527. EPA’s file records it issued July 1, 2015 and expiring June 30, 2020. 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 ACM WEST: its NPDES ID, its permit type and status, its dates, its address in Rancho Cordova, California. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CAZ438527.

Identity

Facility as filedACM WEST
Permittee as filedACM Machining
NPDES IDCAZ438527
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
ProgramIndustrial stormwater
IssuedJuly 1, 2015
Expiration dateJune 30, 2020
Issuing agencyCA Waterboards
AddressRancho Cordova, CA 95742
SubwatershedLake Greenhaven-Sacramento River (HUC 180201630701)

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 CAZ438527.

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 CAZ438527.

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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How we handle your data → Privacy

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 CAZ438527 there.

Nearby on the register

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

What this page shows

The ACM WEST permit, held by ACM Machining in Rancho Cordova, California, is one of 6 storm water industrial permits in that city on EPA's NPDES register, and 16.7% of those 6 permits carry a violation on file. It sits among 20 NPDES permits in the Lake Greenhaven-Sacramento River subwatershed, and it has no pollutants under a numeric limit and no pollutants with an effluent exceedance.