700 Asti Road, Cloverdale, CA 95425 · Sonoma County · Publicly Owned Treatment Works
City Of Cloverdale Wastewater Treatment Plant is a publicly owned wastewater treatment works in Cloverdale, Sonoma County, California, serving about 7,920 residents. It discharges under NPDES permit CA0022977 (expired), which expires in October 2023, with 1 recorded violation in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in February 2012.
One treatment structure or unit process identified at City Of Cloverdale Wastewater Treatment Plant.
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See the full treatment train at City Of Cloverdale Wastewater Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for City Of Cloverdale Wastewater Treatment Plant in EPA's ICIS system.
Latest case · Feb 2012
City of Cloverdale WWTP (CAA 112r)
Administrative order · CAA, Prevention of Accidental Release/Risk Management Plans (RMPs) · Final Order With Penalty · Penalty $400 · Compliance actions $1,000
EPA's description of the case:
“This is an expedited settlement agreement pursuant to Section 112(r)(7) of the CAA issued to City of Cloverdale, CA for the violation occuring at the City of Cloverdale Waste Water Treatment Plant.…”
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Source: EPA ECHO, civil enforcement case 09-2012-3501.
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Every action against City Of Cloverdale Wastewater Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
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Healdsburg · 17 mi away
1.14 MGD
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Guerneville · 21 mi away
0.31 MGD
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Forestville · 23 mi away
0.15 MGD
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Graton · 25 mi away
0.3 MGD
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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 July 29, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms