Northglenn WWTP
5445 Weld County Road 2, Brighton, CO 80603 · Weld County · Publicly Owned Treatment Works
- Average flow
- 3.11 MGD
- Design flow
- 4.2 MGD
- NPDES permit
- CO0036757
- Administratively continued
- Permit expires
- December 2024
- Population served
- 38,973
- CWNS 2022
Northglenn WWTP is a publicly owned wastewater treatment works in Brighton, Weld County, Colorado treating an average of 3.11 million gallons per day against a permitted design capacity of 4.2 MGD, serving about 38,973 residents. It discharges under NPDES permit CO0036757 (administratively continued), which expires in December 2024, with 7 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in November 2024.
Treatment technology
One treatment structure or unit process identified at Northglenn WWTP.
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See the full treatment train at Northglenn WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 7
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Northglenn WWTP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $31,250
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Nov 2024
City of Northglenn Pretreatment Program
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $31,250
EPA's description of the case:
“On November 3, 2022 the EPA entered into an Administrative Order on Consent (AOC) with City of Northglenn, Colorado to resolve the City?s failure to implement and enforce its pretreatment Program.…”
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Source: EPA ECHO, civil enforcement case 08-2023-0037.
Full case history with a free Klarifi account
Every action against Northglenn WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Northglenn WWTP.
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Nearby wastewater treatment plants in Colorado
Westminster · 5 mi away
6.94 MGD
Lafayette · 6 mi away
2.39 MGD
Fort Lupton · 9 mi away
3.02 MGD
Louisville · 9 mi away
2.34 MGD
City Of Longmont · 11 mi away
3.34 MGD
Lochbuie · 14 mi away
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Mead · 16 mi away
0.23 MGD
Aurora · 17 mi away
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Northglenn WWTP: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated May 15, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms