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Clean Water Act discharge permit · NPDES OR0021954

SHERMAN BROS. TRUCKING, Harrisburg, OR: NPDES OR0021954 discharge permit, effluent exceedances, inspections, penalties

SHERMAN BROS. TRUCKING, held by DIAMOND HILL L.L.C., holds NPDES permit OR0021954, which discharges to Little Muddy Creek. EPA’s file records it issued March 9, 2004 and expiring February 28, 2009. 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.

Identity

Facility as filedSHERMAN BROS. TRUCKING
Permittee as filedDIAMOND HILL L.L.C.
NPDES IDOR0021954
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
IssuedMarch 9, 2004
Expiration dateFebruary 28, 2009
AddressHarrisburg, OR 97446
Receiving waterLITTLE MUDDY CREEK
SubwatershedLittle Muddy Creek (HUC 170900030607)
Other EPA IDs (FRS)RCRA handler ORQ000018051

Cited to the EPA ICIS-NPDES permit file (ECHO 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
BOD, 5-day, 20 deg. C01311April 30, 2026189% over the limit
Solids, total suspended055February 28, 202562% over the limit
BOD, 5-day, percent removal054January 31, 202460% over the limit
E. coli042January 31, 2025251% over the limit
pH011February 28, 2025
Solids, suspended percent removal011March 31, 202314% over the limit
Temperature, water deg. fahrenheit060

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

DateWhat EPA recordedAgency
April 1, 2026Reporting Violations - Improper/ Incorrect ReportingST6
October 17, 2017Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6

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 OR0021954 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES discharge permit OR0021954, held by DIAMOND HILL L.L.C. for SHERMAN BROS. TRUCKING in Harrisburg, OR, which discharges to Little Muddy Creek and is administratively continued. The page lists 6 pollutants under a numeric limit and 6 pollutants with an effluent exceedance.