Lott Wastewater Treatment Plant
500 Adams St NE, Olympia, WA 98501 · Thurston County · Publicly Owned Treatment Works
- Average flow
- 12.08 MGD
- Design flow
- —
- NPDES permit
- WAG994545
- Terminated
- Permit expires
- December 2026
- Population served
- 111,878
- CWNS 2022
Lott Wastewater Treatment Plant is a publicly owned wastewater treatment works in Olympia, Thurston County, Washington treating an average of 12.08 million gallons per day, serving about 111,878 residents. It discharges under NPDES permit WAG994545 (terminated), which expires in December 2026, with 0 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in May 2010.
Treatment technology
2 treatment structures and unit processes identified at Lott Wastewater Treatment Plant.
Available with a free Klarifi account
See the full treatment train at Lott Wastewater Treatment Plant: 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 Lott Wastewater Treatment Plant in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $190
- all cases
- Compliance actions
- $50
- required by EPA orders
- EPA inspections
- 2
- latest Mar 2010
Latest case · May 2010
LOTT ALLIANCE - BUDD INLET TREATMENT PLANT
Administrative order · RCRA, Inspections, Monitoring, Testing, Corrective Actions · Final Order With Penalty · Penalty $190 · Compliance actions $50
Source: EPA ECHO, civil enforcement case 10-2010-0176.
Full case history with a free Klarifi account
Every action against Lott Wastewater Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Olympia
Olympia's capital improvement plan lists 80 water, sewer and wastewater line items worth $99M starting 2025–2031. The largest budgeted items are shown here.
All water and sewer capital projects in Olympia →
| Project | Budget | Years |
|---|---|---|
| East Elevated Storage | $7,700,000 | 2028–2029 |
| 9610 Eastside (Tank) Reservoir Rehabilitation Construction | $6,935,000 | 2026–2028 |
| Percival Creek Sewer Replacement | $6,627,285 | 2027–2028 |
| 9609 Asbestos Cement (AC) and Again Pipe Replacement | $5,000,000 | 2026–2030 |
| Aging Infrastructure Rehabilitation | $3,881,045 | 2025–2030 |
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
2 verified contacts for Lott Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Lott Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Washington
Olympia · 5 mi away
0.03 MGD
Yelm · 16 mi away
—
Littlerock · 16 mi away
0.05 MGD
Shelton · 16 mi away
0.000000032 MGD
University Place · 18 mi away
22.49 MGD
Rochester · 19 mi away
0.17 MGD
Puyallup · 29 mi away
5.2 MGD
Federal Way · 31 mi away
4.96 MGD
Lott Wastewater Treatment Plant: 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 September 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms