Howell WWTP
1191 South Pinckney Road, Howell, MI 48843 · Livingston County · Publicly Owned Treatment Works
- Average flow
- 1.36 MGD
- Design flow
- —
- NPDES permit
- MI0021113
- Effective
- Permit expires
- October 2027
- Population served
- 9,409
- CWNS 2022
Howell WWTP is a publicly owned wastewater treatment works in Howell, Livingston County, Michigan treating an average of 1.36 million gallons per day, serving about 9,409 residents. It discharges under NPDES permit MI0021113 (effective), which expires in October 2027, with 42 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Howell WWTP.
Available with a free Klarifi account
See the full treatment train at Howell WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 42
- Effluent violations
- 34
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Industrial users and pretreatment
Industries that discharge process wastewater to Howell WWTP, from the plant's pretreatment programme records.
- Industrial users
- 3
- 1 categorical
- Sampled for PFAS
- 1
- 2023–2024
- Above 12 ng/L PFOS
- 0
- none detected
On record: Chem-Trend Lp (Howell); Diamond Chrome Plating Inc (Howell); Pepsi- Raw Process Water Pretreatment/Pepsi- R.O. (Howell). Most users are in chemicals, plastics and petroleum and food and beverage.
Industrial users of Howell WWTP →PFAS sources at all Michigan plants →
Unlock the details behind these industrial users
Discharge flow, federal category, full PFAS sampling history, source documents and contacts for every industrial user of Howell WWTP. Free with a Klarifi account.
Capital improvement projects in Howell
Howell's capital improvement plan lists 5 water, sewer and wastewater line items worth $605K starting 2024–2024. The largest budgeted items are shown here.
All water and sewer capital projects in Howell →
| Project | Budget | Years |
|---|---|---|
| Roselane Station Replacement | $250,000 | 2024–2025 |
| Peninsula Station Replacement | $250,000 | 2024–2025 |
| Sewer Repairs per the AMP | $100,000 | 2024–2025 |
| GPS Unit | $3,750 | 2024–2025 |
| BS&A Cloud UB Module | $1,188 | 2024–2025 |
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
18 verified contacts for Howell WWTP, with validated emails and direct phone numbers.
Unlock 18 verified contacts (15 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Howell WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Howell · 2 mi away
1.4 MGD
Howell · 3 mi away
0.31 MGD
Fowlerville · 8 mi away
0.1 MGD
Brighton · 9 mi away
1.16 MGD
Fowlerville · 9 mi away
0.54 MGD
Brighton · 12 mi away
0.36 MGD
Whitmore Lake · 13 mi away
0.79 MGD
Webberville · 14 mi away
0.8 MGD
Howell 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 19, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms