Eureka Chemical Co
Active WDID 2 41I011564 South San Francisco, San Mateo County Region 2 · San Francisco Bay
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- South San Francisco, San Mateo County
- Region 2 · San Francisco Bay · Location · Statewide map
- Receiving water
- San Francisco Bay (as reported by the facility)
- Evidence: candidate, awaiting review Details
- Identified receiving water on the 2026 303(d) list
- Not established
- Shown only when the reported receiving water is identified and corroborated.
- 2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
- 2 waterbodies; 2 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 114 distinct results, 5 reporting years (2021 to 2025)
- Most recent sample Apr 10, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 0 inspections · 4 violation records · 5 enforcement actions
- Counts as published in SMARTS; not a compliance determination · Details
Each label shows where a statement comes from. How to read the labels.
Overview and location
Reported facility location HUC12 watershed Corroborated receiving water 2026 Integrated Report waterbodies nearby
Reported location Evidence: facility-reported
- Coordinates
- 37.64922, -122.39752
- Precision
- 5 decimal places
- Shared point
- No
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 234 Lawrence Ave, South San Francisco 94080
- Regional Water Board
- 2 — San Francisco Bay
HUC12 watershed Evidence: spatial
- San Francisco Bay Estuaries-Frontal San Francisco Bay HUC12 180500041001
The facility's reported location lies within this HUC12 watershed (spatial derivation); it is not a discharge location.
Permits and applications Evidence: SMARTS record
Current permit record
- Permit type
- Industrial
- Application type
- Notice of Intent (WDID code I)
- Status
- Active
- Operator
- Eureka Chemical Co
- Primary industry (SIC)
- 2992-Lubricating Oils and Greases
- Application ID
- 182910
- NOI processed
- Apr 18, 1995
- Last certified
- Feb 19, 2021
- Facility size
- 52185 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 182910 | Industrial | Active | Apr 18, 1995 | — | Feb 19, 2021 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- San Francisco Bay
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review
Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.
Why it is not confirmed (1)
- C1 name is only a prefix of official names
3 official waterbodies share this name; none is assigned without review.
Impaired waters and TMDLs
Two kinds of information, kept apart: 2026 Integrated Report waterbodies near the reported location (geographic proximity only), and TMDL records that SMARTS lists for this facility. Neither establishes where the facility discharges; see Receiving water for the facility's own statement.
Nearby waterbodies Evidence: geographic proximity
Spatial proximity only; discharge pathway not established. Being near a waterbody does not mean the facility discharges to it.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Colma Creek CAR2044002020080624163112 | 366 m | listed | 1 |
| San Francisco Bay, Lower CAB2041001019980925131322 | 525 m | listed | 10 |
Waterbodies within 1.0 km of the reported facility location. Method proximity/1.
SMARTS TMDL records Evidence: SMARTS-reported
No TMDL records for this facility in the SMARTS TMDL export.
Reported monitoring results Evidence: facility-reported
Numeric Action Level (NAL) screening is being independently validated and is not shown. Nothing on this page states whether a result exceeded a NAL.
114 distinct measurements across 4 parameters, most recent sample Apr 10, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 24 | 3 | 0 | Oct 13, 2025 | Apr 10, 2026 |
| 2024 | 18 | 4 | 0 | Nov 21, 2024 | Mar 31, 2025 |
| 2023 | 36 | 4 | 0 | Dec 27, 2023 | Mar 31, 2024 |
| 2022 | 24 | 4 | 0 | Jan 10, 2023 | Jan 13, 2023 |
| 2021 | 12 | 4 | 0 | Dec 13, 2021 | Dec 13, 2021 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 31 | 29 | Dec 13, 2021 | Apr 10, 2026 | Results |
| pH | SU | 31 | 0 | Dec 13, 2021 | Apr 10, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 31 | 4 | Dec 13, 2021 | Apr 10, 2026 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 21 | 5 | Dec 13, 2021 | Nov 21, 2024 | Results |
All results (114 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 10, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372522 | |
| Apr 10, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372522 | |
| Apr 10, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1372522 | |
| Apr 10, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1372522 | |
| Apr 10, 2026 | Total Suspended Solids (TSS) | 34 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372522 | |
| Apr 10, 2026 | Total Suspended Solids (TSS) | 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372522 | |
| Feb 10, 2026 | Oil and Grease | DNQ 1.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1367089 | |
| Feb 10, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1367089 | |
| Feb 10, 2026 | pH | 6.5 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1367089 | |
| Feb 10, 2026 | pH | 6.5 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1367089 | |
| Feb 10, 2026 | Total Suspended Solids (TSS) | 99 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1367089 | |
| Feb 10, 2026 | Total Suspended Solids (TSS) | 100 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1367089 | |
| Nov 13, 2025 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359014 | |
| Nov 13, 2025 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359014 | |
| Nov 13, 2025 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1359014 | |
| Nov 13, 2025 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1359014 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | ND 0 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359014 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 2.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359014 | |
| Oct 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1357522 | |
| Oct 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1357522 | |
| Oct 13, 2025 | pH | 6.98 | SU | Effluent | Qualifying Storm Event | pH_Field | 1357522 | |
| Oct 13, 2025 | pH | 6.94 | SU | Effluent | Qualifying Storm Event | pH_Field | 1357522 | |
| Oct 13, 2025 | Total Suspended Solids (TSS) | 7.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1357522 | |
| Oct 13, 2025 | Total Suspended Solids (TSS) | 13.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1357522 | |
| Mar 31, 2025 | Oil and Grease | DNQ 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1326001 | |
| Mar 31, 2025 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1326001 | |
| Mar 31, 2025 | Total Suspended Solids (TSS) | 6.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1326001 | |
| Jan 31, 2025 | Oil and Grease | DNQ 2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1326001 | |
| Jan 31, 2025 | pH | 6.98 | SU | Effluent | Qualifying Storm Event | pH_Field | 1326001 | |
| Jan 31, 2025 | Total Suspended Solids (TSS) | 16.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1326001 | |
| Nov 21, 2024 | Electrical Conductivity @ 25 Deg. C | 11.7 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1315743 | |
| Nov 21, 2024 | Electrical Conductivity @ 25 Deg. C | 16.6 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1315743 | |
| Nov 21, 2024 | Electrical Conductivity @ 25 Deg. C | ND | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1315743 | |
| Nov 21, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1315743 | |
| Nov 21, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1315743 | |
| Nov 21, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1315743 | |
| Nov 21, 2024 | pH | 6.81 | SU | Effluent | Qualifying Storm Event | pH_Field | 1315743 | |
| Nov 21, 2024 | pH | 6.57 | SU | Effluent | Qualifying Storm Event | pH_Field | 1315743 | |
| Nov 21, 2024 | pH | 6.63 | SU | Effluent | Qualifying Storm Event | pH_Field | 1315743 | |
| Nov 21, 2024 | Total Suspended Solids (TSS) | 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1315743 | |
| Nov 21, 2024 | Total Suspended Solids (TSS) | 2.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1315743 | |
| Nov 21, 2024 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1315743 | |
| Mar 31, 2024 | Electrical Conductivity @ 25 Deg. C | ND | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1283813 | |
| Mar 31, 2024 | Electrical Conductivity @ 25 Deg. C | ND | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1283813 | |
| Mar 31, 2024 | Electrical Conductivity @ 25 Deg. C | ND | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1283813 | |
| Mar 31, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1283813 | |
| Mar 31, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1283813 | |
| Mar 31, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1283813 | |
| Mar 31, 2024 | pH | 6.45 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1283813 | |
| Mar 31, 2024 | pH | 6.33 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1283813 |
Results are shown exactly as reported by the discharger. Identical rows repeated in the State's export are shown once. Where the export contains different versions of the same sample and parameter, each version is listed and flagged. Details.
Compliance and enforcement records Evidence: SMARTS record
These are records as the State Water Board publishes them in SMARTS, with the source's own types and statuses. They are not a compliance determination or rating. A record listed here is not proof of a violation beyond what the source states, and the absence of records does not establish compliance.
| Record type | Records | As published | Dates | Retrieved | List |
|---|---|---|---|---|---|
| Violations | 4 | 4 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 2007 – Jul 15, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 5 | 5 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 06, 2007 – May 23, 2024 | Oct 21, 2026 | All actions |
| Inspections | 0 | inspections, not findings | — | Oct 21, 2026 | |
| Annual reports | 10 | certified reports (contents not shown) | 2015 – 2025 | Oct 21, 2026 | All reports |
| Water-quality-based corrective action reports | 0 | reports, by parameter | — | Oct 21, 2026 |
Each record type is counted by its own SMARTS identifier. A violation and the enforcement action that cites it are two records in two lists; they are never added together.
Chronological record history (19 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 01, 2026 | Annual reports | 1334218 | Annual report 2025 | — | |
| Jul 11, 2025 | Annual reports | 1292989 | Annual report 2024 | — | |
| Jun 11, 2024 | Annual reports | 1241996 | Annual report 2023 | — | |
| May 23, 2024 | Enforcement actions | 453423 | NOV (Notice of Violation) | Active | |
| Sep 06, 2023 | Annual reports | 1187928 | Annual report 2022 | — | |
| Jul 15, 2023 | Violations | 889103 | Deficient Report | Violation | Report |
| Jan 12, 2023 | Enforcement actions | 449369 | SEL (Staff Enforcement Letter) | Active | |
| Jan 01, 2023 | Violations | 884424 | Late Report | Violation | Report |
| Jul 01, 2022 | Annual reports | 1111198 | Annual report 2021 | — | |
| Jun 02, 2021 | Annual reports | 1067136 | Annual report 2020 | — | |
| Jul 09, 2020 | Annual reports | 984293 | Annual report 2019 | — | |
| Jul 05, 2019 | Annual reports | 951797 | Annual report 2018 | — | |
| Jun 29, 2017 | Annual reports | 876360 | Annual report 2016 | — | |
| Jul 07, 2016 | Annual reports | 842586 | Annual report 2015 | — | |
| Feb 16, 2010 | Enforcement actions | 401148 | ACL (Administrative Civil Liability) | Historical | R2-2010-0042 |
| Aug 03, 2009 | Enforcement actions | 371414 | NNC (Notice of Non-Compliance) | Historical | |
| Jul 02, 2009 | Violations | 838859 | Late Report | Violation | Report |
| Aug 06, 2007 | Enforcement actions | 357304 | NNC (Notice of Non-Compliance) | Historical | |
| Jul 02, 2007 | Violations | 798549 | Late Report | Violation | Report |
Sources and provenance
| Information | Source | Retrieved or published |
|---|---|---|
| Permit, location, receiving-water text | SMARTS Industrial Application Specific Data | Oct 20, 2026 |
| Permit history | SMARTS Storm Water Applications | Oct 20, 2026 |
| Monitoring results | SMARTS Industrial Parameter Data | Oct 20, 2026 |
| Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12) | USGS | 2026-10-22 |
| 2026 California Integrated Report, Appendix A: 2026 303(d) List (final) | SWRCB | 2026-10-22 |
| Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0) | SWRCB GIS | 2026-10-22 |
| SMARTS TMDL requirements | SMARTS | 2026-10-21 |
Relationships computed 2026-10-22 with methods facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1; proximity threshold 1.0 km.
How to read the evidence labels
- Evidence: SMARTS record Evidence: facility-reported Information as published in SMARTS or reported by the discharger.
- Evidence: identification corroborated The reported receiving-water name identifies one official waterbody and the facility's location is consistent with it. It does not establish a discharge pathway.
- Evidence: candidate, awaiting review Evidence: not confirmed The reported name could match one or more official waterbodies, but no identification has been confirmed; nothing is assigned without review.
- Evidence: spatial Evidence: geographic proximity Derived from the reported location only.
- Evidence: SMARTS-reported Source records whose links to official references are not yet reviewed.
- Evidence: unavailable The information could not be loaded or is not in the sources.
Records are shown as published and are not compliance determinations. How geographic context is derived.