DTI Associates LLC
Terminated WDID 4 19I020159 Compton, 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
- Compton, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Los Angeles River (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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 65 distinct results, 5 reporting years (2015 to 2019)
- Most recent sample Dec 27, 2019 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 2 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
- 33.88212, -118.18996
- 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
- 1628 Sportsman Dr, Compton 90723
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Compton Creek-Los Angeles River HUC12 180701050402
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
- DTI Associates LLC
- Primary industry (SIC)
- 4212-Local Trucking Without Storage
- Application ID
- 298857
- NOI processed
- Mar 23, 2006
- Termination effective
- Aug 12, 2020
- Last certified
- Jun 30, 2015
- Facility size
- 75933 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 298857 | Industrial | Terminated | Mar 23, 2006 | Aug 12, 2020 | Jun 30, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Los Angeles River
- 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
7 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 |
|---|---|---|---|
| Los Angeles River Reach 2 (Carson to Figueroa Street) CAR4051501019990202085021 | 88 m | listed | 9 |
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.
65 distinct measurements across 4 parameters, most recent sample Dec 27, 2019.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2019 | 1 | 1 | 0 | Dec 27, 2019 | Dec 27, 2019 |
| 2018 | 11 | 3 | 0 | Dec 06, 2018 | Feb 15, 2019 |
| 2017 | 9 | 3 | 0 | Mar 02, 2018 | Mar 21, 2018 |
| 2016 | 16 | 4 | 0 | Oct 17, 2016 | Feb 06, 2017 |
| 2015 | 28 | 4 | 0 | Sep 16, 2015 | May 06, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Total Suspended Solids (TSS) | mg/L | 19 | 0 | Sep 16, 2015 | Dec 27, 2019 | Results |
| Oil and Grease | mg/L | 18 | 11 | Sep 16, 2015 | Feb 15, 2019 | Results |
| pH | SU | 17 | 0 | Sep 16, 2015 | Jan 31, 2019 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 11 | 0 | Sep 16, 2015 | Feb 06, 2017 | Results |
All results (65 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 27, 2019 | Total Suspended Solids (TSS) | 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1108562 | |
| Feb 15, 2019 | Oil and Grease | 10.7 | mg/L | Effluent | Qualifying Storm Event | A5220B | 1059710 | |
| Feb 15, 2019 | Total Suspended Solids (TSS) | 35 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1059710 | |
| Jan 31, 2019 | Oil and Grease | 3.69 | mg/L | Effluent | Qualifying Storm Event | A5220B | 1059709 | |
| Jan 31, 2019 | pH | 8.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1059709 | |
| Jan 31, 2019 | Total Suspended Solids (TSS) | 100 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1059709 | |
| Jan 07, 2019 | Oil and Grease | 4.87 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1034396 | |
| Jan 07, 2019 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1034396 | |
| Jan 07, 2019 | Total Suspended Solids (TSS) | 55.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1034396 | |
| Dec 06, 2018 | Oil and Grease | 13.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1033432 | |
| Dec 06, 2018 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1033432 | |
| Dec 06, 2018 | Total Suspended Solids (TSS) | 92.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1033432 | |
| Mar 21, 2018 | Oil and Grease | 14.3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1001213 | |
| Mar 21, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1001213 | |
| Mar 21, 2018 | Total Suspended Solids (TSS) | 111 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1001213 | |
| Mar 13, 2018 | Oil and Grease | 8.42 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1001209 | |
| Mar 13, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1001209 | |
| Mar 13, 2018 | Total Suspended Solids (TSS) | 508 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1001209 | |
| Mar 02, 2018 | Oil and Grease | 9.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1001208 | |
| Mar 02, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | E150.2 | 1001208 | |
| Mar 02, 2018 | Total Suspended Solids (TSS) | 84 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1001208 | |
| Feb 06, 2017 | Electrical Conductivity @ 25 Deg. C | 79 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 948959 | |
| Feb 06, 2017 | Oil and Grease | < 5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 948959 | |
| Feb 06, 2017 | pH | 6.81 | SU | Effluent | Qualifying Storm Event | A4500HB | 948959 | |
| Feb 06, 2017 | Total Suspended Solids (TSS) | 45 | mg/L | Effluent | Qualifying Storm Event | A2540D | 948959 | |
| Jan 05, 2017 | Electrical Conductivity @ 25 Deg. C | 97 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 948958 | |
| Jan 05, 2017 | Oil and Grease | < 5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 948958 | |
| Jan 05, 2017 | pH | 6.65 | SU | Effluent | Qualifying Storm Event | A4500HB | 948958 | |
| Jan 05, 2017 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 948958 | |
| Dec 16, 2016 | Electrical Conductivity @ 25 Deg. C | 122 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 948957 | |
| Dec 16, 2016 | Oil and Grease | < 5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 948957 | |
| Dec 16, 2016 | pH | 5.77 | SU | Effluent | Qualifying Storm Event | A4500HB | 948957 | |
| Dec 16, 2016 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 948957 | |
| Oct 17, 2016 | Electrical Conductivity @ 25 Deg. C | 78 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 948955 | |
| Oct 17, 2016 | Oil and Grease | < 5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 948955 | |
| Oct 17, 2016 | pH | 6.93 | SU | Effluent | Qualifying Storm Event | A4500HB | 948955 | |
| Oct 17, 2016 | Total Suspended Solids (TSS) | 36 | mg/L | Effluent | Qualifying Storm Event | A2540D | 948955 | |
| May 06, 2016 | Electrical Conductivity @ 25 Deg. C | 56 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 910789 | |
| May 06, 2016 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 910789 | |
| May 06, 2016 | pH | 6.3 | SU | Effluent | Qualifying Storm Event | A4500HB | 910789 | |
| May 06, 2016 | Total Suspended Solids (TSS) | 80 | mg/L | Effluent | Qualifying Storm Event | A2540D | 910789 | |
| Apr 08, 2016 | Electrical Conductivity @ 25 Deg. C | 48 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 910789 | |
| Apr 08, 2016 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 910789 | |
| Apr 08, 2016 | pH | 6.7 | SU | Effluent | Qualifying Storm Event | A4500HB | 910789 | |
| Apr 08, 2016 | Total Suspended Solids (TSS) | 19 | mg/L | Effluent | Qualifying Storm Event | A2540D | 910789 | |
| Mar 07, 2016 | Electrical Conductivity @ 25 Deg. C | 39 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 910789 | |
| Mar 07, 2016 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 910789 | |
| Mar 07, 2016 | pH | 7.17 | SU | Effluent | Qualifying Storm Event | A4500HB | 910789 | |
| Mar 07, 2016 | Total Suspended Solids (TSS) | 44 | mg/L | Effluent | Qualifying Storm Event | A2540D | 910789 | |
| Jan 05, 2016 | Electrical Conductivity @ 25 Deg. C | 43 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 910789 |
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 | 2 | 1 Violation · 1 Potential (preliminary) · 0 Dismissed | Aug 04, 2016 – Oct 11, 2016 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Oct 11, 2016 – Nov 21, 2016 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Aug 04, 2016 – Nov 20, 2020 | Oct 21, 2026 | All inspections |
| Annual reports | 5 | certified reports (contents not shown) | 2015 – 2019 | 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 (11 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Nov 20, 2020 | Inspections | 2049717 | NOT | Finalized | No Further Action |
| Jun 16, 2020 | Annual reports | 984460 | Annual report 2019 | — | |
| Jul 01, 2019 | Annual reports | 951967 | Annual report 2018 | — | |
| Jul 05, 2018 | Annual reports | 937378 | Annual report 2017 | — | |
| Jul 14, 2017 | Annual reports | 876538 | Annual report 2016 | — | |
| Dec 30, 2016 | Annual reports | 847861 | Annual report 2015 | — | |
| Nov 21, 2016 | Enforcement actions | 425305 | NOV (Notice of Violation) | Historical | |
| Oct 11, 2016 | Enforcement actions | 424813 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Oct 11, 2016 | Violations | 861894 | Late Report | Violation | Report |
| Aug 04, 2016 | Inspections | 2033454 | MS4 Audit Type | — | Follow-up Inspection Needed |
| Aug 04, 2016 | Violations | 863319 | Deficient BMP Implementation | Potential | Inspection |
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.