Clean Water Act discharge permit · NPDES WY0034207

CHEMTRADE LOGISTICS, Riverton, WY: NPDES WY0034207 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
12Pollutants under a numeric limit
6Pollutants with an effluent exceedance

CHEMTRADE LOGISTICS, held by Chemtrade Logistics, holds NPDES permit WY0034207, which discharges to Little Wind River (2). EPA’s file records it issued March 29, 2010 and expiring March 31, 2015. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	CHEMTRADE LOGISTICS
Permittee as filed	Chemtrade Logistics
NPDES ID	WY0034207
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 29, 2010
Expiration date	March 31, 2015
Address	Riverton, WY 82501
Receiving water	Little Wind River (2)

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

Effluent limits and exceedances

14Pollutants on file
12Under a numeric limit
14With a violation of any kind
6With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Chemical Oxygen Demand [COD]	0	101	47	April 30, 2010	100% over the limit
Solids, total suspended	4	89	5	December 31, 2013	433% over the limit
Solids, total dissolved	4	91	2	October 31, 2008	17% over the limit
Oxygen, dissolved percent saturation	2	43	2	August 31, 2005	44% over the limit
Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas	1	12	2	June 30, 2006
Oil and grease visual	2	42	1	November 30, 2008	99,999% over the limit
Temperature, water deg. centigrade	6	126	0
pH	4	85	0
Flow, in conduit or thru treatment plant	4	82	0
Oil & Grease	2	44	0
Sulfate [as S]	2	42	0
Oxygen, dissolved [DO]	2	41	0
Chlorine, total residual	0	35	0
Pass/Fail Static Renewal 48Hr Acute Daphnia Species	1	9	0

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES WY0034207.

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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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 WY0034207 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.