SeQuential Environmental Services Richmond
Terminated WDID 2 07I025140 Richmond, Contra Costa County Region 2 · San Francisco Bay
At a glance
- Permit Evidence: SMARTS record
- Terminated Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Richmond, Contra Costa County
- Region 2 · San Francisco Bay · Location · Statewide map
- Receiving water
- San Pablo Bay (as reported by the facility)
- Evidence: identification corroborated San Pablo Bay Details
- Identified receiving water on the 2026 303(d) list
- Yes · 10 Appendix A decisions, category 5 Evidence: State-published
- Describes the waterbody, not this facility · Waterbody profile
- 2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
- 2 waterbodies; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 173 distinct results, 9 reporting years (2015 to 2023)
- Most recent sample Jan 24, 2024 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 0 inspections · 0 violation records · 0 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
- 37.98072, -122.35429
- 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
- 3501 Collins Ave, Richmond 94806
- Regional Water Board
- 2 — San Francisco Bay
HUC12 watershed Evidence: spatial
- Pinole Creek-Frontal San Pablo Bay Estuaries HUC12 180500020702
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
- Terminated
- Operator
- SeQuential Environmental Services LLC
- Primary industry (SIC)
- 4212-Local Trucking Without Storage
- Application ID
- 450998
- NOI processed
- Nov 12, 2014
- Termination effective
- Jun 24, 2024
- Last certified
- Apr 28, 2023
- Facility size
- 74000 SqFt
- Impervious area
- 90 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 450998 | Industrial | Terminated | Nov 12, 2014 | Jun 24, 2024 | Apr 28, 2023 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- San Pablo Bay
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: identification corroborated San Pablo Bay CAB2061001019980928100945
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 936 m. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
San Pablo Bay is on the 2026 Clean Water Act section 303(d) list (10 Appendix A decisions; category 5).
| Pollutant | Category | Listing decision | TMDL requirement | Decision ID |
|---|---|---|---|---|
| Chlordane | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 141097 |
| DDT (Dichlorodiphenyltrichloroethane) | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 151555 |
| Dieldrin | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 141103 |
| Dioxin compounds (including 2,3,7,8-TCDD) | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 151238 |
| Furan Compounds | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 151240 |
| Invasive Species | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 170598 |
| Mercury | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | 5B · San Francisco Bay Mercury | 153022 |
| PCBs (Polychlorinated biphenyls) | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | 5B · San Francisco Bay PCBs | 141112 |
| PCBs (Polychlorinated biphenyls) (dioxin-like) | 5 | List on 303(d) list (being addressed by USEPA approved TMDL) | 5B · San Francisco Bay PCBs | 69085 |
| Selenium | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | 5B · San Francisco Bay Selenium - North Bay | 141114 |
Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. State Board adoption 2026-02-03; USEPA approval not confirmed. A listing describes the waterbody, not this facility. Waterbody profile.
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 |
|---|---|---|---|
| Rheem Creek CAR2066001420110810220335 | 377 m | not listed | 0 |
| San Pablo Bay CAB2061001019980928100945 | 936 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.
173 distinct measurements across 15 parameters, most recent sample Jan 24, 2024.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2023 | 12 | 6 | 0 | Dec 20, 2023 | Jan 24, 2024 |
| 2022 | 24 | 6 | 0 | Nov 01, 2022 | Feb 24, 2023 |
| 2021 | 23 | 6 | 0 | Oct 21, 2021 | Dec 27, 2021 |
| 2020 | 22 | 6 | 0 | Dec 17, 2020 | Mar 18, 2021 |
| 2019 | 12 | 6 | 0 | Dec 02, 2019 | Mar 16, 2020 |
| 2018 | 12 | 6 | 0 | Nov 21, 2018 | Feb 26, 2019 |
| 2017 | 24 | 7 | 0 | Nov 16, 2017 | Mar 13, 2018 |
| 2016 | 40 | 13 | 0 | Oct 14, 2016 | Mar 22, 2017 |
| 2015 | 4 | 4 | 0 | Mar 11, 2016 | Mar 11, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Chemical Oxygen Demand (COD) | mg/L | 27 | 2 | Oct 14, 2016 | Jan 24, 2024 | Results |
| Oil and Grease | mg/L | 27 | 14 | Mar 11, 2016 | Jan 24, 2024 | Results |
| pH | SU | 26 | 0 | Oct 14, 2016 | Jan 24, 2024 | Results |
| Total Suspended Solids (TSS) | mg/L | 25 | 1 | Jan 20, 2017 | Jan 24, 2024 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 24 | 4 | Feb 08, 2017 | Jan 24, 2024 | Results |
| BOD5 @ 20 Deg. C, Percent Removal | mg/L | 17 | 1 | Jan 08, 2018 | Jan 24, 2024 | Results |
| Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | mg/L | 6 | 1 | Jan 20, 2017 | Feb 26, 2019 | Results |
| Copper, Total Recoverable | ug/L | 4 | 2 | Oct 28, 2016 | Mar 22, 2017 | Results |
| Nitrate, Total (as N) | mg/L | 4 | 2 | Oct 14, 2016 | Mar 22, 2017 | Results |
| Zinc, Total Recoverable | ug/L | 4 | 1 | Oct 28, 2016 | Mar 22, 2017 | Results |
| Nitrite, Total (as N) | mg/L | 3 | 2 | Oct 14, 2016 | Mar 22, 2017 | Results |
| Copper, Total | mg/L | 2 | 0 | Mar 11, 2016 | Oct 14, 2016 | Results |
Show 3 more parameters
All results (173 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Jan 24, 2024 | BOD5 @ 20 Deg. C, Percent Removal | 14 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1278035 | |
| Jan 24, 2024 | Chemical Oxygen Demand (COD) | 22 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1278035 | |
| Jan 24, 2024 | Nitrite Plus Nitrate (as N) | .1 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1278035 | |
| Jan 24, 2024 | Oil and Grease | 2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1278035 | |
| Jan 24, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1278035 | |
| Jan 24, 2024 | Total Suspended Solids (TSS) | 6.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1278035 | |
| Dec 20, 2023 | BOD5 @ 20 Deg. C, Percent Removal | 4.7 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1271220 | |
| Dec 20, 2023 | Chemical Oxygen Demand (COD) | 2 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1271220 | |
| Dec 20, 2023 | Nitrite Plus Nitrate (as N) | .27 | mg/L | Effluent | Qualifying Storm Event | A4500NA | 1271220 | |
| Dec 20, 2023 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1271220 | |
| Dec 20, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1271220 | |
| Dec 20, 2023 | Total Suspended Solids (TSS) | 3.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1271220 | |
| Feb 24, 2023 | BOD5 @ 20 Deg. C, Percent Removal | 9.6 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1229111 | |
| Feb 24, 2023 | Chemical Oxygen Demand (COD) | 18 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1229111 | |
| Feb 24, 2023 | Nitrite Plus Nitrate (as N) | .03 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1229111 | |
| Feb 24, 2023 | Oil and Grease | 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1229111 | |
| Feb 24, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1229111 | |
| Feb 24, 2023 | Total Suspended Solids (TSS) | 2.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1229111 | |
| Jan 04, 2023 | BOD5 @ 20 Deg. C, Percent Removal | 5.9 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1222705 | |
| Jan 04, 2023 | Chemical Oxygen Demand (COD) | 14 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1222705 | |
| Jan 04, 2023 | Nitrite Plus Nitrate (as N) | .079 | mg/L | Effluent | Qualifying Storm Event | A4500NA | 1222705 | |
| Jan 04, 2023 | Oil and Grease | ND 5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1222705 | |
| Jan 04, 2023 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1222705 | |
| Jan 04, 2023 | Total Suspended Solids (TSS) | 2.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1222705 | |
| Nov 08, 2022 | BOD5 @ 20 Deg. C, Percent Removal | 22 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1216940 | |
| Nov 08, 2022 | Chemical Oxygen Demand (COD) | 78 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1216940 | |
| Nov 08, 2022 | Nitrite Plus Nitrate (as N) | .044 | mg/L | Effluent | Qualifying Storm Event | A4500NA | 1216940 | |
| Nov 08, 2022 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1216940 | |
| Nov 08, 2022 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1216940 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 7.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216940 | |
| Nov 01, 2022 | BOD5 @ 20 Deg. C, Percent Removal | 5.3 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1216586 | |
| Nov 01, 2022 | Chemical Oxygen Demand (COD) | 8 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1216586 | |
| Nov 01, 2022 | Nitrite Plus Nitrate (as N) | .037 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1216586 | |
| Nov 01, 2022 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1216586 | |
| Nov 01, 2022 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1216586 | |
| Nov 01, 2022 | Total Suspended Solids (TSS) | 9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216586 | |
| Dec 27, 2021 | BOD5 @ 20 Deg. C, Percent Removal | 6.4 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1174057 | |
| Dec 27, 2021 | Chemical Oxygen Demand (COD) | 8 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1174057 | |
| Dec 27, 2021 | Nitrite Plus Nitrate (as N) | .086 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1174057 | |
| Dec 27, 2021 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1174057 | |
| Dec 27, 2021 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1174057 | |
| Dec 27, 2021 | Total Suspended Solids (TSS) | 3.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1174057 | |
| Dec 13, 2021 | Chemical Oxygen Demand (COD) | 32 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1173977 | |
| Dec 13, 2021 | Nitrite Plus Nitrate (as N) | .45 | mg/L | Effluent | Qualifying Storm Event | A4500NA | 1173977 | |
| Dec 13, 2021 | Oil and Grease | 3.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1173977 | |
| Dec 13, 2021 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1173977 | |
| Dec 13, 2021 | Total Suspended Solids (TSS) | 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1173977 | |
| Oct 25, 2021 | BOD5 @ 20 Deg. C, Percent Removal | ND 4.1 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1169046 | |
| Oct 25, 2021 | Chemical Oxygen Demand (COD) | ND 1.7 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1169046 | |
| Oct 25, 2021 | Nitrite Plus Nitrate (as N) | .1 | mg/L | Effluent | Qualifying Storm Event | A4500NA | 1169046 |
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 | 0 | 0 Violation · 0 Potential (preliminary) · 0 Dismissed | — | Oct 21, 2026 | |
| Enforcement actions | 0 | 0 issued · 0 draft · 0 withdrawn, rescinded or superseded | — | Oct 21, 2026 | |
| Inspections | 0 | inspections, not findings | — | Oct 21, 2026 | |
| Annual reports | 9 | certified reports (contents not shown) | 2015 – 2023 | 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 (9 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| May 02, 2024 | Annual reports | 1247748 | Annual report 2023 | — | |
| Jun 26, 2023 | Annual reports | 1193962 | Annual report 2022 | — | |
| Jul 07, 2022 | Annual reports | 1117858 | Annual report 2021 | — | |
| Jun 22, 2021 | Annual reports | 1066105 | Annual report 2020 | — | |
| Jul 02, 2020 | Annual reports | 983234 | Annual report 2019 | — | |
| Jun 17, 2019 | Annual reports | 959608 | Annual report 2018 | — | |
| Jun 19, 2018 | Annual reports | 945038 | Annual report 2017 | — | |
| Jun 19, 2017 | Annual reports | 884322 | Annual report 2016 | — | |
| Jun 06, 2016 | Annual reports | 843424 | Annual report 2015 | — |
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.