Hangtown Creek WWTP
2300 Cool Water Crk Rd, Placerville, CA 95667 · El Dorado County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 2 MGD
- NPDES permit
- CAC439621
- Expired
- Permit expires
- November 2022
- Population served
- 9,000
- CWNS 2022
Hangtown Creek WWTP is a publicly owned wastewater treatment works in Placerville, El Dorado County, California, serving about 9,000 residents. It discharges under NPDES permit CAC439621 (expired), which expires in November 2022, with 56 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in January 2008.
Treatment technology
3 treatment structures and unit processes identified at Hangtown Creek WWTP.
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See the full treatment train at Hangtown Creek WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 56
- Effluent violations
- 5
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 Hangtown Creek WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $800
- all cases
- EPA inspections
- 0
- none on record
Latest case · Jan 2008
City of Placerville
Administrative order · CAA, Prevention of Accidental Release/Risk Management Plans (RMPs) · Final Order With Penalty · Penalty $800
EPA's description of the case:
“This is an Administrative Penalty Action (Expedited Settlement Agreement), pursuant to CAA 112(r)(7), issued to the City of Placerville, California for their wastewater treatment plant. The violation…”
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Source: EPA ECHO, civil enforcement case 09-2008-3504.
Full case history with a free Klarifi account
Every action against Hangtown Creek WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Hangtown Creek WWTP.
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Nearby wastewater treatment plants in California
El Dorado Hills · 13 mi away
1.97 MGD
Auburn · 18 mi away
1.29 MGD
Auburn · 24 mi away
0.47 MGD
Roseville · 25 mi away
—
Lincoln · 28 mi away
—
Roseville · 29 mi away
—
Ione · 32 mi away
0.01 MGD
Nevada City · 37 mi away
0.01 MGD
Hangtown Creek 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 August 19, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms