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Clean Water Act discharge permit · NPDES CO0027707

SWIFT BEEF - LONE TREE, Greeley, CO: NPDES CO0027707 discharge permit, effluent exceedances, inspections, penalties

SWIFT BEEF - LONE TREE, held by Swift Beef Company, holds NPDES permit CO0027707, which discharges to Lone Tree Creek. EPA’s file records it issued July 18, 2005 and expiring August 31, 2010. 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 filedSWIFT BEEF - LONE TREE
Permittee as filedSwift Beef Company
NPDES IDCO0027707
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 18, 2005
Expiration dateAugust 31, 2010
AddressGreeley, CO 80631
Receiving waterLONE TREE CREEK
SubwatershedOutlet Lone Tree Creek (HUC 101900080306)

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

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
Nitrogen, ammonia total [as N]1411381October 31, 20252,349% over the limit
Static Renewal 7 Day Chronic Ceriodaphnia dubia03024December 31, 202580% over the limit
Solids, total suspended287215June 30, 2026503% over the limit
Coliform, fecal general8388October 31, 2016625% over the limit
LC50 Static Renewal 96Hr Acute Pimephales promelas066March 31, 200574% over the limit
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia044June 30, 200467% over the limit
BOD, 5-day, 20 deg. C32662September 30, 201214% over the limit
Chlorine, total residual8342October 31, 2006180% over the limit
pH6342January 31, 2020
Flow, in conduit or thru treatment plant6322September 30, 200413% over the limit
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia12122September 30, 201175% over the limit
Oxygen, dissolved [DO]4131October 31, 20072% over the limit
Static Renewal 7 Day Chronic Pimephales promelas071June 30, 202099,999% over the limit
Nitrogen, total [as N]14340
Oil and grease16320
Production divided by days operated mo.6320
Sodium adsorption ratio0200
Toxicity [chronic], Ceriodaphnia dubia12100
Toxicity [chronic], Pimephales promelas [Fathead Minnow]12100
%Effect Static Renewal 7Day Chronic Pimephales promelas12100
Conductivity0100
Calcium, total recoverable0100
Bicarbonate ion- [as HCO3]080
Magnesium, total recoverable080
Sodium, total recoverable080
Copper, potentially dissolved080
Lead, potentially dissolvd080
Selenium, potentially dissolvd080
Cadmium, potentially dissolvd060
Sulfide-hydrogen sulfide [undissociated]050
Mercury, total [as Hg]040

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
June 10, 2025Effluent Violations - Industrial SpillST6
April 1, 2023Monitoring Violations - Failure to Monitor for Toxicity RequirementsST6
April 1, 2023Effluent Violations - Failed Toxicity TestST6
May 11, 2022Management Practice Violations - Improper Operation and MaintenanceST6
May 11, 2022Reporting Violations - Improper/ Incorrect ReportingST6
January 1, 2020Effluent Violations - Failed Toxicity TestST6
October 1, 2018Effluent Violations - Failed Toxicity TestST6
July 1, 2018Effluent Violations - Failed Toxicity TestST6
April 1, 2018Monitoring Violations - Failure to Monitor for Toxicity RequirementsST6
January 1, 2018Effluent Violations - Failed Toxicity TestST6
January 1, 2017Effluent Violations - Failed Toxicity TestST6

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 CO0027707 there.

Nearby on the register

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