Newburyport Wastewater Treatment Facility
157 Water Street, Newburyport, MA 01950 · Essex County · Publicly Owned Treatment Works
- Average flow
- 1.52 MGD
- Design flow
- —
- NPDES permit
- MAG590035
- Effective
- Permit expires
- October 2027
- Population served
- 17,891
- CWNS 2022
Newburyport Wastewater Treatment Facility is a publicly owned wastewater treatment works in Newburyport, Essex County, Massachusetts treating an average of 1.52 million gallons per day, serving about 17,891 residents. It discharges under NPDES permit MAG590035 (effective), which expires in October 2027, with 0 recorded violations in the last three years.
Treatment technology
12 treatment structures and unit processes identified at Newburyport Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Newburyport Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
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 Newburyport Wastewater Treatment Facility in EPA's ICIS system.
- Formal actions
- 0
- none on record
- EPA inspections
- 3
- latest Apr 2007
No formal federal enforcement case is on record for this plant.
Full case history with a free Klarifi account
Every action against Newburyport Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Newburyport
Newburyport's capital improvement plan lists 26 water, sewer and wastewater line items worth $58M starting 2026–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Newburyport →
| Project | Budget | Years |
|---|---|---|
| Indian Hill Raw Water Line (Phase 2) | $17,900,000 | 2026–2030 |
| Lower Artichoke Reservoir Dam Improvement 3 | $9,690,000 | 2026–2030 |
| Clarifier Upgrades | $6,960,000 | 2026–2029 |
| Water Meter Replacement Program | $5,826,000 | 2026–2027 |
| Critical Resilient Infrastructure Project | $5,207,000 | 2026–2030 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
42 verified contacts for Newburyport Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 42 verified contacts (39 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Newburyport Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Massachusetts
Salisbury · 2 mi away
0.73 MGD
Merrimac · 7 mi away
0.36 MGD
Ipswich · 8 mi away
0.66 MGD
Manchester · 17 mi away
0.44 MGD
Salem · 19 mi away
21.66 MGD
Billerica · 26 mi away
3.3 MGD
Winthrop · 32 mi away
270.96 MGD
Concord · 34 mi away
0.83 MGD
Newburyport Wastewater Treatment Facility: 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 November 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms