Del Mar Horsepark
Active WDID 9 37I030269 Del Mar, San Diego County Region 9 · San Diego
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Del Mar, San Diego County
- Region 9 · San Diego · Location · Statewide map
- Receiving water
- San Dieguito River (as reported by the facility)
- Evidence: identification corroborated San Dieguito River Details
- Identified receiving water on the 2026 303(d) list
- Yes · 9 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
- 3 waterbodies; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 27 distinct results, 1 reporting year (2023 to 2023)
- Most recent sample Feb 06, 2024 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 1 violation record · 1 enforcement action
- 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
- 32.98041, -117.23473
- 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
- 14550 El Camino Real, Del Mar 92014
- Regional Water Board
- 9 — San Diego
HUC12 watershed Evidence: spatial
- Lusardi Creek-San Dieguito River HUC12 180703040302
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
- HITS Del Mar Leasing LLC
- Primary industry (SIC)
- 0272-Horses and Other Equines
- Application ID
- 563012
- NOI processed
- Jul 03, 2023
- Last certified
- May 22, 2024
- Facility size
- 56.4 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 563012 | Industrial | Active | Jul 03, 2023 | — | May 22, 2024 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- San Dieguito River
- Discharges directly / indirectly
- Y / N (as answered in the permit application)
Evidence: identification corroborated San Dieguito River CAR9051100020080825090830
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 187 m. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
San Dieguito River is on the 2026 Clean Water Act section 303(d) list (9 Appendix A decisions; category 5).
| Pollutant | Category | Listing decision | TMDL requirement | Decision ID |
|---|---|---|---|---|
| Benthic Community Effects | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 126460 |
| Bifenthrin | 5 | List on 303(d) list (TMDL required list) | 5A | 170612 |
| Chloride | 5 | List on 303(d) list (TMDL required list) | 5A | 113312 |
| Nitrogen | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 127371 |
| Oxygen, Dissolved | 5 | List on 303(d) list (TMDL required list) | 5A | 113328 |
| Phosphorus | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 113333 |
| Pyrethroids | 5 | List on 303(d) list (TMDL required list) | 5A | 150003 |
| Total Dissolved Solids | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 113338 |
| Toxicity | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 113339 |
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 |
|---|---|---|---|
| San Dieguito River CAR9051100020080825090830 | 187 m | listed | 9 |
| San Dieguito Lagoon CAE9051100020111216092905 | 193 m | not listed | 0 |
| Gonzales Canyon Creek (San Diego County) CAR9051100020191211042402 | 519 m | not listed | 0 |
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.
27 distinct measurements across 7 parameters, most recent sample Feb 06, 2024.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2023 | 27 | 7 | 0 | Aug 21, 2023 | Feb 06, 2024 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Nitrate, Total (as N) | mg/L | 4 | 0 | Aug 21, 2023 | Feb 06, 2024 | Results |
| Oil and Grease | mg/L | 4 | 3 | Aug 21, 2023 | Feb 06, 2024 | Results |
| pH | SU | 4 | 0 | Aug 21, 2023 | Feb 06, 2024 | Results |
| Total Coliform | MPN/100 mL | 4 | 1 | Aug 21, 2023 | Feb 06, 2024 | Results |
| Total Dissolved Solids (TDS) | mg/L | 4 | 0 | Aug 21, 2023 | Feb 06, 2024 | Results |
| Total Suspended Solids (TSS) | mg/L | 4 | 0 | Aug 21, 2023 | Feb 06, 2024 | Results |
| Phosphorus, Total (as P) | mg/L | 3 | 0 | Jan 22, 2024 | Feb 06, 2024 | Results |
All results (27 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 06, 2024 | Nitrate, Total (as N) | .76 | mg/L | Effluent | Qualifying Storm Event | A4500NOD | 1285909 | |
| Feb 06, 2024 | Oil and Grease | 7.47 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1285909 | |
| Feb 06, 2024 | pH | 150 | SU | Effluent | Qualifying Storm Event | pH_Field | 1285909 | |
| Feb 06, 2024 | Phosphorus, Total (as P) | .56 | mg/L | Effluent | Qualifying Storm Event | A4500PB | 1285909 | |
| Feb 06, 2024 | Total Coliform | ND 1600 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1285909 | |
| Feb 06, 2024 | Total Dissolved Solids (TDS) | 230 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1285909 | |
| Feb 06, 2024 | Total Suspended Solids (TSS) | > 1600 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1285909 | |
| Jan 22, 2024 | Nitrate, Total (as N) | 2.3 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1285884 | |
| Jan 22, 2024 | Nitrate, Total (as N) | .18 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1285884 | |
| Jan 22, 2024 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1285884 | |
| Jan 22, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1285884 | |
| Jan 22, 2024 | pH | 7.38 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1285884 | |
| Jan 22, 2024 | pH | 7.72 | SU | Effluent | Qualifying Storm Event | pH_Field | 1285884 | |
| Jan 22, 2024 | Phosphorus, Total (as P) | .25 | mg/L | Effluent | Qualifying Storm Event | A4500PB | 1285884 | |
| Jan 22, 2024 | Phosphorus, Total (as P) | .1 | mg/L | Effluent | Qualifying Storm Event | A4500PB | 1285884 | |
| Jan 22, 2024 | Total Coliform | 1600 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1285884 | |
| Jan 22, 2024 | Total Coliform | > 1600 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1285884 | |
| Jan 22, 2024 | Total Dissolved Solids (TDS) | 690 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1285884 | |
| Jan 22, 2024 | Total Dissolved Solids (TDS) | 200 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1285884 | |
| Jan 22, 2024 | Total Suspended Solids (TSS) | 76 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1285884 | |
| Jan 22, 2024 | Total Suspended Solids (TSS) | 490 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1285884 | |
| Aug 21, 2023 | Nitrate, Total (as N) | .68 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1266388 | |
| Aug 21, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1266388 | |
| Aug 21, 2023 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1266388 | |
| Aug 21, 2023 | Total Coliform | > 1600 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1266388 | |
| Aug 21, 2023 | Total Dissolved Solids (TDS) | 330 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1266388 | |
| Aug 21, 2023 | Total Suspended Solids (TSS) | 21 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1266388 |
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 | 1 | 1 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 16, 2026 – Jul 16, 2026 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Jul 22, 2026 – Jul 22, 2026 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Oct 30, 2024 – Oct 30, 2024 | Oct 21, 2026 | All inspections |
| Annual reports | 3 | certified reports (contents not shown) | 2023 – 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 (7 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Aug 24, 2026 | Annual reports | 1341161 | Annual report 2025 | — | |
| Jul 22, 2026 | Enforcement actions | 471117 | NOV (Notice of Violation) | Active | |
| Jul 16, 2026 | Violations | 905194 | Late Report | Violation | Report |
| Jul 14, 2025 | Annual reports | 1300351 | Annual report 2024 | — | |
| Oct 30, 2024 | Inspections | 2067312 | Complaint | Finalized | No Further Action |
| Oct 30, 2024 | Inspections | 2067991 | Complaint | Finalized | No Further Action |
| Jul 08, 2024 | Annual reports | 1238887 | Annual report 2023 | — |
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.