Clean Water Act discharge permit · NPDES MT0025020

PALEO SEARCH INC - SUCTION DREDGE PROJECT, Helena, MT: NPDES MT0025020 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
10Pollutants under a numeric limit
0Pollutants with an effluent exceedance

PALEO SEARCH INC - SUCTION DREDGE PROJECT, held by PALEO SEARCH INC, holds NPDES permit MT0025020, which discharges to Missouri River. EPA’s file records it issued September 15, 2009 and expiring October 31, 2014. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	PALEO SEARCH INC - SUCTION DREDGE PROJECT
Permittee as filed	PALEO SEARCH INC
NPDES ID	MT0025020
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Not a publicly owned treatment works
Issued	September 15, 2009
Expiration date	October 31, 2014
Issuing agency	MONTANA DEQ
Address	Helena, MT 59602
Receiving water	MISSOURI RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Lower Spokane Creek (HUC 100301011603)
SIC	1041 – Gold Ores

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

10Pollutants on file
10Under a numeric limit
10With a violation of any kind
0With 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
Turbidity	6	129
Flow rate	4	90
Raw materials processed	5	76
Oil and grease visual	2	44
Oil and grease, hexane extr method	2	41
Duration	2	31
Oxygen, dissolved [DO]	2	28
Solids, total suspended	2	28
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia	2	16
Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas	2	16

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MT0025020.

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 MT0025020.

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 MT0025020 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES MT0025020, held by PALEO SEARCH INC for the PALEO SEARCH INC - SUCTION DREDGE PROJECT in Helena, MT, which discharges to the Missouri River. The permit is listed as a major discharger, administratively continued, with 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance. The permit was issued September 15, 2009 and expired October 31, 2014.