Paramount Refinery
Terminated WDID 4 19I019967 Paramount, Los Angeles County Region 4 · Los Angeles
At a glance
- Permit Evidence: SMARTS record
- Terminated Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Paramount, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Los Cerritos Channel (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
- None
- Monitoring results Evidence: facility-reported
- 327 distinct results, 3 reporting years (2015 to 2017)
- Most recent sample Mar 02, 2018 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 4 violation records · 2 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
- 33.89902, -118.15138
- Precision
- 5 decimal places
- Shared point
- 2 permits report this exact point
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 14700 Downey, Paramount 90723
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Alamitos Bay HUC12 180701060702
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
- Alon Asphalt Company
- Primary industry (SIC)
- 2911-Petroleum Refining
- Application ID
- 293398
- NOI processed
- Dec 05, 2005
- Termination effective
- Jul 13, 2018
- Last certified
- Jun 09, 2015
- Facility size
- 15 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 293398 | Industrial | Terminated | Dec 05, 2005 | Jul 13, 2018 | Jun 09, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Los Cerritos Channel
- 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 (2)
- C3 facility HUC12 not corroborated
- C4 candidate has no geometry
1 official waterbody shares 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.
No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.
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.
327 distinct measurements across 14 parameters, most recent sample Mar 02, 2018.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2017 | 51 | 13 | 0 | Jan 09, 2018 | Mar 02, 2018 |
| 2016 | 156 | 13 | 0 | Nov 20, 2016 | Feb 06, 2017 |
| 2015 | 120 | 13 | 0 | Sep 15, 2015 | Mar 11, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | mg/L | 26 | 7 | Sep 15, 2015 | Mar 02, 2018 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 26 | 0 | Sep 15, 2015 | Mar 02, 2018 | Results |
| Chromium (Total) | mg/L | 26 | 4 | Sep 15, 2015 | Mar 02, 2018 | Results |
| Copper, Total | mg/L | 26 | 2 | Sep 15, 2015 | Mar 02, 2018 | Results |
| Lead, Total | mg/L | 26 | 3 | Sep 15, 2015 | Mar 02, 2018 | Results |
| pH | SU | 26 | 0 | Sep 15, 2015 | Mar 02, 2018 | Results |
| Zinc, Total | mg/L | 26 | 1 | Sep 15, 2015 | Mar 02, 2018 | Results |
| Total Suspended Solids (TSS) | mg/L | 25 | 0 | Sep 15, 2015 | Mar 02, 2018 | Results |
| Ammonia, Total (as N) | mg/L | 24 | 16 | Dec 19, 2015 | Mar 02, 2018 | Results |
| Chromium (VI) | ug/L | 24 | 24 | Dec 19, 2015 | Mar 02, 2018 | Results |
| Oil and Grease | mg/L | 24 | 22 | Dec 19, 2015 | Mar 02, 2018 | Results |
| Phenols, Total | mg/L | 24 | 24 | Dec 19, 2015 | Mar 02, 2018 | Results |
Show 2 more parameters
All results (327 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 02, 2018 | Ammonia, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NH | 994659 | |
| Mar 02, 2018 | Ammonia, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NH | 994659 | |
| Mar 02, 2018 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | DNQ 2 | mg/L | Effluent | Qualifying Storm Event | A5210B | 994659 | |
| Mar 02, 2018 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 14 | mg/L | Effluent | Qualifying Storm Event | A5210B | 994659 | |
| Mar 02, 2018 | Chemical Oxygen Demand (COD) | 37.4 | mg/L | Effluent | Qualifying Storm Event | A5220D | 994659 | |
| Mar 02, 2018 | Chemical Oxygen Demand (COD) | 207 | mg/L | Effluent | Qualifying Storm Event | A5220D | 994659 | |
| Mar 02, 2018 | Chromium (Total) | .0037 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 994659 | |
| Mar 02, 2018 | Chromium (Total) | .0026 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 994659 | |
| Mar 02, 2018 | Chromium (VI) | ND | ug/L | Effluent | Qualifying Storm Event | 994659 | ||
| Mar 02, 2018 | Chromium (VI) | ND | ug/L | Effluent | Qualifying Storm Event | 994659 | ||
| Mar 02, 2018 | Copper, Total | .013 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 994659 | |
| Mar 02, 2018 | Copper, Total | .023 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 994659 | |
| Mar 02, 2018 | Lead, Total | .0057 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 994659 | |
| Mar 02, 2018 | Lead, Total | .0054 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 994659 | |
| Mar 02, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 994659 | |
| Mar 02, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 994659 | |
| Mar 02, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 994659 | |
| Mar 02, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 994659 | |
| Mar 02, 2018 | Phenols, Total | ND | mg/L | Effluent | Qualifying Storm Event | 994659 | ||
| Mar 02, 2018 | Phenols, Total | ND | mg/L | Effluent | Qualifying Storm Event | 994659 | ||
| Mar 02, 2018 | Sulfide, Dissolved (as S) | ND | mg/L | Effluent | Qualifying Storm Event | 994659 | ||
| Mar 02, 2018 | Sulfide, Dissolved (as S) | ND | mg/L | Effluent | Qualifying Storm Event | 994659 | ||
| Mar 02, 2018 | Total Suspended Solids (TSS) | 37 | mg/L | Effluent | Qualifying Storm Event | A2540D | 994659 | |
| Mar 02, 2018 | Total Suspended Solids (TSS) | 50 | mg/L | Effluent | Qualifying Storm Event | A2540D | 994659 | |
| Mar 02, 2018 | Zinc, Total | .189 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 994659 | |
| Mar 02, 2018 | Zinc, Total | .24 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 994659 | |
| Jan 09, 2018 | Ammonia, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NH | 993320 | |
| Jan 09, 2018 | Ammonia, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NH | 993320 | |
| Jan 09, 2018 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 19 | mg/L | Effluent | Qualifying Storm Event | A5210B | 993320 | |
| Jan 09, 2018 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 6 | mg/L | Effluent | Qualifying Storm Event | A5210B | 993320 | |
| Jan 09, 2018 | Chemical Oxygen Demand (COD) | 214 | mg/L | Effluent | Qualifying Storm Event | A5220D | 993320 | |
| Jan 09, 2018 | Chemical Oxygen Demand (COD) | 82.8 | mg/L | Effluent | Qualifying Storm Event | A5220D | 993320 | |
| Jan 09, 2018 | Chromium (Total) | ND | mg/L | Effluent | Qualifying Storm Event | A3111B | 993320 | |
| Jan 09, 2018 | Chromium (Total) | .00625 | mg/L | Effluent | Qualifying Storm Event | A3111B | 993320 | |
| Jan 09, 2018 | Chromium (VI) | ND | ug/L | Effluent | Qualifying Storm Event | 993320 | ||
| Jan 09, 2018 | Chromium (VI) | ND | ug/L | Effluent | Qualifying Storm Event | 993320 | ||
| Jan 09, 2018 | Copper, Total | .0247 | mg/L | Effluent | Qualifying Storm Event | A3111B | 993320 | |
| Jan 09, 2018 | Copper, Total | .0209 | mg/L | Effluent | Qualifying Storm Event | A3111B | 993320 | |
| Jan 09, 2018 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | A3111B | 993320 | |
| Jan 09, 2018 | Lead, Total | .0103 | mg/L | Effluent | Qualifying Storm Event | A3111B | 993320 | |
| Jan 09, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 993320 | |
| Jan 09, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 993320 | |
| Jan 09, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 993320 | |
| Jan 09, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 993320 | |
| Jan 09, 2018 | Phenols, Total | ND | mg/L | Effluent | Qualifying Storm Event | 993320 | ||
| Jan 09, 2018 | Phenols, Total | ND | mg/L | Effluent | Qualifying Storm Event | 993320 | ||
| Jan 09, 2018 | Sulfide, Dissolved (as S) | ND | mg/L | Effluent | Qualifying Storm Event | 993320 | ||
| Jan 09, 2018 | Sulfide, Dissolved (as S) | ND | mg/L | Effluent | Qualifying Storm Event | 993320 | ||
| Jan 09, 2018 | Total Suspended Solids (TSS) | 58 | mg/L | Effluent | Qualifying Storm Event | A2540D | 993320 | |
| Jan 09, 2018 | Zinc, Total | .171 | mg/L | Effluent | Qualifying Storm Event | A3111B | 993320 |
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 | Oct 31, 2008 – Jan 25, 2010 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | May 14, 2010 – Aug 17, 2010 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jan 25, 2010 – Jan 25, 2010 | Oct 21, 2026 | All inspections |
| Annual reports | 3 | certified reports (contents not shown) | 2015 – 2017 | 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 (10 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 12, 2018 | Annual reports | 941035 | Annual report 2017 | — | |
| Jul 14, 2017 | Annual reports | 880399 | Annual report 2016 | — | |
| Aug 04, 2016 | Annual reports | 839332 | Annual report 2015 | — | |
| Aug 17, 2010 | Enforcement actions | 404957 | SEL (Staff Enforcement Letter) | Historical | |
| May 14, 2010 | Enforcement actions | 405948 | NOV (Notice of Violation) | Historical | |
| Jan 25, 2010 | Inspections | 2004570 | B Type compliance | — | Follow-up Inspection Needed |
| Jan 25, 2010 | Violations | 841527 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| Jan 25, 2010 | Violations | 841528 | Deficient Report | Violation | Inspection |
| Jan 25, 2010 | Violations | 841529 | Deficient BMP Implementation | Violation | Inspection |
| Oct 31, 2008 | Violations | 844209 | Deficient BMP Implementation | 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.