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Sonoma Transfer Station
4376 Stage Gulch Road
transfer stationsonomarepublic services
About this center
The Sonoma Transfer Station on Stage Gulch Road is one of the county's four transfer stations. It is open Monday to Saturday and takes scrap metal, cardboard, glass, containers and newspaper for recycling.
Materials accepted & services
Services offered
- Transfer station
- Recycling drop-off
Frequently asked questions
How is this location classified in EPA facility data?
EPA's Disaster Debris Recovery dataset lists this location as metal recycler; tire recycler; transfer station. The matched record lists its source as CalEPA Regulated Site Portal and its update date as 08/15/2025. Retrieved October 30, 2026. This is a source classification, not confirmation of public drop-off access, current operating status or EPA certification.
What EPA facility registry identifier is associated with this location?
The matched EPA disaster-debris record lists Facility Registry Service (FRS) ID 110002854885. An FRS identifier links environmental program records; it is not itself a recycling license, permit or compliance rating. Record update date: 08/15/2025; retrieved October 30, 2026.
What identifier does the EPA national facility registry list for this location?
EPA's national Facility Registry Service CSV lists registry ID 110002854885 for SONOMA TRANSFER STATION at 4376 STAGE GULCH RD, SONOMA, CA. National CSV retrieved October 30, 2026. The record's listed update date is 2015-06-03. A registry entry is not a recycling license, certification or confirmation of public drop-off access.
Which environmental program identifiers are recorded for this facility?
The national EPA facility record lists these program associations and identifiers: HWTS-DATAMART:CAD983597501, NPDES:CAZ454053, RCRAINFO:CAD983597501, RCRAINFO:CAH111001521, RCRAINFO:CAL000434059, RCRAINFO:CAL000459097. Recorded program interests: ICIS-NPDES NON-MAJOR, OTHER HAZARDOUS WASTE ACTIVITIES, SQG, STATE MASTER, STORM WATER INDUSTRIAL, UNSPECIFIED UNIVERSE. National CSV retrieved October 30, 2026. The record's listed update date is 2015-06-03. These are links to program records; they do not establish current permit validity or a finding of a violation.
What industry classifications appear in the EPA facility record?
NAICS code(s): 425120, 562119. Description(s): OTHER WASTE COLLECTION., WHOLESALE TRADE AGENTS AND BROKERS. SIC code(s): 5093. Description(s): SCRAP AND WASTE MATERIALS National CSV retrieved October 30, 2026. The record's listed update date is 2015-06-03. These are recorded industry classifications, not a list of materials accepted today.
What CalRecycle SWIS facility record covers this address?
CalRecycle records this location as Sonoma Transfer Station, SWIS 49-AA-0144, with site operational status "Active" and regulatory status "Permitted". Retrieved 2026-10-30. SWIS identifies the site; specific activities at the same address may have different authorizations.
Who is recorded as the owner in CalRecycle SWIS?
The non-archived SWIS owner records for Sonoma Transfer Station (49-AA-0144) name County Of Sonoma Public Works Dept. Retrieved 2026-10-30. These are the parties in the registry's owner field; the registry does not establish corporate beneficial ownership.
Who is recorded as the operator in CalRecycle SWIS?
The non-archived SWIS operator records for Sonoma Transfer Station (49-AA-0144) name Republic Services of Sonoma County, Inc.. Retrieved 2026-10-30. The operator is a separate role from the recorded owner.
What active activities and oversight are recorded by CalRecycle?
For Sonoma Transfer Station, SWIS lists these active activity records: Large Volume Transfer/Processing Facility — regulatory status Permitted; listed inspection frequency Monthly. The enforcing agency is County of Sonoma, Department of Health Services, Environmental Health Section. Retrieved 2026-10-30. A listed inspection frequency is a schedule, not confirmation that an inspection occurred.
What waste categories appear in this facility’s SWIS activity records?
CalRecycle records Agricultural; Construction/demolition; Industrial; Inert; Mixed Municipal; Tires across the active activities at Sonoma Transfer Station (49-AA-0144). Retrieved 2026-10-30. These regulatory waste categories do not establish public drop-off availability, pricing, or acceptance of every item in a category; contact the facility about your load.
What throughput or capacity figures does CalRecycle report?
SWIS reports for Sonoma Transfer Station: Large Volume Transfer/Processing Facility: maximum permitted throughput 760 Tons per day; maximum permit capacity 760 Tons per day. Units are reproduced as recorded, retrieved 2026-10-30; these are permit-record figures, not a measure of available capacity today.
What EPA environmental program records are associated with this location?
EPA's ECHO export, last modified October 25, 2026, identifies SONOMA TRANSFER STATION at this address as FRS facility 110002854885. Its aggregate active-program flag is Y: EPA defines this as at least one associated air, water, hazardous-waste or drinking-water program record being active. It does not mean that every listed program record is active or that the facility has a current compliance certification.
What EPA water-discharge program identifiers are recorded for this facility?
ECHO associates SONOMA TRANSFER STATION with ICIS-NPDES identifier(s) CAZ454053 and Clean Water Act permit designation(s) Non-M. Source export last modified October 25, 2026. These identify water-discharge program records; the export's aggregate active flag does not establish the current status or expiry of each individual permit. They do not authorize public waste drop-off.
What EPA hazardous-waste identifiers and facility types are recorded here?
ECHO associates SONOMA TRANSFER STATION with RCRA identifier(s) CAD983597501 CAH111001521 CAL000434059 CAL000459097 and recorded facility type(s) Other, SQG. Source export last modified October 25, 2026. Generator classifications describe a facility's own hazardous-waste generation; they are not approval to accept hazardous waste from customers. These identifiers and types do not by themselves establish an active treatment, storage or disposal permit.
What compliance-monitoring history does EPA ECHO report for this facility?
EPA ECHO identifies SONOMA TRANSFER STATION at 4376 STAGE GULCH RD, SONOMA, CA (FRS 110002854885). Its five-year compliance-monitoring metric records 3 qualifying activities. The latest qualifying activity date supplied is 2026-05-29. The source snapshot is 2026-10-25, retrieved 2026-10-30. These records cover qualifying inspections and evaluations; an air-program evaluation may include off-site work. This is a reported monitoring history, not a current compliance rating. Facility report: https://echo.epa.gov/detailed-facility-report?fid=110002854885
Which selected programme-specific monitoring counts does this EPA export record provide?
For the five-year counting window in its 2026-10-25 snapshot, the export provides these selected programme fields: RCRA monitoring activities: 3. EPA applies programme-specific counting rules. These three available programme categories are a subset of ECHO’s monitoring categories; they should not be added together to reconstruct the aggregate. They are not a complete log of visits or state-held records. Blank fields are omitted rather than treated as zero. Source definitions: https://echo.epa.gov/help/facility-search/all-data-search-results-help
What monitoring dates does EPA distinguish for federal and state agencies?
The ECHO snapshot supplies latest state/local-reported qualifying activity: 2026-05-29. These are reported activity dates, which may include completion of an air-program evaluation rather than an on-site visit. Snapshot: 2026-10-25. Reporting coverage differs between programmes and agencies. Source definitions: https://echo.epa.gov/help/facility-search/all-data-search-results-help
What historical noncompliance does EPA ECHO record for this facility?
EPA ECHO’s 2026-10-25 snapshot records 1 of the last 12 reporting quarters with a violation/noncompliance status for SONOMA TRANSFER STATION at 4376 STAGE GULCH RD, SONOMA, CA (FRS 110002854885). These historical records do not establish that a condition remains open today. Agency-recorded violations may be allegations rather than final adjudications. Reporting coverage varies by programme. Facility history: https://echo.epa.gov/detailed-facility-report?fid=110002854885
What enforcement-action counts does the EPA export report?
In its five-year summary through the 2026-10-25 snapshot, ECHO reports 0 formal enforcement actions and 2 informal notices/actions. Informal notices can be resolved without escalation and are not final adjudications. Counts reflect the export’s reporting coverage and are not a complete case inventory. A zero does not establish an absence of all enforcement history. Source definitions: https://echo.epa.gov/help/facility-search/all-data-search-results-help
What historical hazardous-waste violations are recorded in EPA RCRAInfo?
EPA’s RCRAInfo download dated 2026-10-25 contains 1 agency-determined violation entry for the matched handler CAL000434059, CAL000459097. 1 of these entries supply an actual return-to-compliance date, meaning verified full physical compliance for that recorded violation; this does not establish that enforcement was complete. Recorded entries: State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements (code XXS), determined 2025-05-01, verified physical return to compliance 2025-05-01. Historical entries may concern prior operators. A missing return date does not establish an ongoing violation or a final adjudication. Facility report: https://echo.epa.gov/detailed-facility-report?fid=110002854885
What historical hazardous-waste enforcement activity is recorded here?
The 2026-10-25 RCRAInfo download contains 2 recorded enforcement activity entries for the matched handler CAL000434059, CAL000459097. Recorded entries: 2025-05-23: INSPECTION REPORT w/VIOLATIONS (MAILED DATE) (type CA125, state agency). 2025-05-01: WRITTEN INFORMAL (type HQ120, state agency). The source includes informal notices, warnings and proposed steps as well as final orders; these entries are not all final findings or currently open actions. The date and action description should be read together. Facility report: https://echo.epa.gov/detailed-facility-report?fid=110002854885
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Location & directions
Sonoma Transfer Station
4376 Stage Gulch Road
Sonoma, CA
38.284900°N, 122.469600°W
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