Haverhill Wastewater Treatment Facility
40 South Porter St, Haverhill, MA 01835 · Essex County · Publicly Owned Treatment Works
- Average flow
- 8.49 MGD
- Design flow
- —
- Permit expires
- December 2030
- Population served
- 61,329
Haverhill Wastewater Treatment Facility is a publicly owned wastewater treatment works in Haverhill, Essex County, Massachusetts treating an average of 8.49 million gallons per day, serving about 61,329 residents. It discharges under NPDES permit MAL101621 (effective), which expires in December 2030, with 3 recorded violations in the last three years. EPA has recorded 8 formal enforcement actions naming the plant, the latest in December 2025.
Treatment technology
6 treatment structures and unit processes identified at Haverhill Wastewater Treatment Facility.
Compliance snapshot (last 3 years)
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
- Total violations
- 3
- Effluent violations
- 2
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Haverhill Wastewater Treatment Facility in EPA's ICIS system.
- Formal actions
- 8
- Penalties assessed
- $175,000
- Compliance actions
- $108M
- EPA inspections
- 0
Latest case
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $4,200
“On August 15, 2024, EPA issued a Clean Water Act Administrative Compliance Order to the City of Haverhill, Massachusetts for alleged violations of the 2016 General Permit for Stormwater Discharges…”
Unlock EPA's full description by creating a free account on Klarifi. Create a free account
Capital improvement projects in Haverhill
Haverhill's capital improvement plan lists 20 water, sewer and wastewater line items worth $3M starting 2025–2026. The largest budgeted items are shown here.
| Project | Budget | Years |
|---|---|---|
| Capital Outlay | $665,000 | 2025–2026 |
| Future Carbon Replacement Filters | $320,000 | 2025–2025 |
| Catenary Screen Rehabilitation | $300,000 | 2026–2026 |
| Infrastructure Expense | $250,000 | 2025–2026 |
| Infrastructure Expense | $220,000 | 2025–2026 |
Key contacts
2 verified contacts for Haverhill Wastewater Treatment Facility, with validated emails and direct phone numbers.
Nearby wastewater treatment plants in Massachusetts
- Greater Lawrence Wastewater Treatment FacilityNorth Andover · 5 mi away22.41 MGD
- Merrimac Wastewater Treatment PlantMerrimac · 6 mi away0.37 MGD
- Salisbury Wastewater Treatment FacilitySalisbury · 10 mi away0.73 MGD
- Newburyport Wastewater Treatment FacilityNewburyport · 11 mi away1.5 MGD
- Ipswich Wastewater Treatment PlantIpswich · 12 mi away0.65 MGD
- Billerica Wastewater Treatment FacilityBillerica · 16 mi away3.29 MGD
- South Essex Wastewater Treatment PlantSalem · 19 mi away21.56 MGD
- Manchester Wastewater Treatment FacilityManchester · 20 mi away0.44 MGD
Haverhill Wastewater Treatment Facility: frequently asked questions
What is the address of Haverhill Wastewater Treatment Facility?
The address on the plant’s EPA facility record is 40 South Porter St, Haverhill, MA 01835, in Essex County. Its coordinates are 42.7603, -71.0609. For some plants the record holds the utility’s mailing address rather than the plant gate.
How much wastewater does Haverhill Wastewater Treatment Facility treat?
Haverhill Wastewater Treatment Facility treats an average of 8.49 MGD.
Has Haverhill Wastewater Treatment Facility been subject to EPA enforcement action?
EPA's enforcement records list 8 formal civil enforcement cases naming Haverhill Wastewater Treatment Facility, 1 since fiscal year 2020. The latest case reached its current status in December 2025 (administrative order, final order no penalty). Penalties assessed across the cases total $175,000. The full case history, with milestones, violation types and EPA's case summaries, is shown in Klarifi with a free account.
What treatment technology does Haverhill Wastewater Treatment Facility use?
Klarifi has identified 6 treatment structures and unit processes at the Haverhill facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.
What is the NPDES permit for Haverhill Wastewater Treatment Facility?
The facility discharges under NPDES permit MAL101621, currently effective, expiring December 2030.
Is Haverhill Wastewater Treatment Facility in compliance?
Discharge monitoring reports show 3 violations at Haverhill Wastewater Treatment Facility in the last three years, 2 of them effluent limit exceedances. The full history is available in Klarifi.
Are there capital improvement projects planned in Haverhill, MA?
Yes. Haverhill's capital improvement plan lists 20 water, sewer and wastewater projects worth $3M starting between 2025 and 2026. Line items and the people behind them are in Klarifi.
Who operates Haverhill Wastewater Treatment Facility and how do I contact them?
Haverhill Wastewater Treatment Facility is a publicly owned treatment works in Haverhill, Massachusetts. Klarifi lists 2 verified decision-maker contacts for this facility, available with a free trial.
Try Klarifi for free
Create your own trial account and explore how Klarifi can help you.