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Clean Water Act discharge permit · NPDES CAZ491539

BONNY DOON QUARRY, Davenport, CA: NPDES CAZ491539 discharge permit, effluent exceedances, inspections, penalties

BONNY DOON QUARRY, held by RMC Pacific Materials LLC dba CEMEX, holds NPDES permit CAZ491539. EPA’s file records it issued December 27, 2017 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 BONNY DOON QUARRY: its NPDES ID, its permit type and status, its dates, its address in Davenport, California. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CAZ491539.

Identity

Facility as filedBONNY DOON QUARRY
Permittee as filedRMC Pacific Materials LLC dba CEMEX
NPDES IDCAZ491539
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
IssuedDecember 27, 2017
Expiration dateJune 30, 2020
Issuing agencyCA Waterboards
AddressDavenport, CA 40241
SubwatershedSan Vicente Creek-Frontal Pacific Ocean (HUC 180500060304)

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 CAZ491539.

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 CAZ491539.

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.

Watch this permit

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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 CAZ491539 there.

Nearby on the register

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

What this page shows

The BONNY DOON QUARRY permit is one of 1 storm water industrial permits on EPA's NPDES register in Davenport, this one included. It also sits among 3 NPDES permits in the San Vicente Creek-Frontal Pacific Ocean subwatershed, this one included. The permit records no pollutants under a numeric limit and no pollutants with an effluent exceedance, each listed as 0.