Robertsons Escondid Batch Plant
Active WDID 9 37I023400 Escondido, 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
- Escondido, San Diego County
- Region 9 · San Diego · Location · Statewide map
- Receiving water
- Escondido Creek (as reported by the facility)
- Evidence: identification corroborated Escondido Creek Details
- Identified receiving water on the 2026 303(d) list
- Yes · 17 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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 12 distinct results, 2 reporting years (2018 to 2019)
- Most recent sample Mar 13, 2020 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 8 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
- 33.12175, -117.10576
- 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
- 1310 Simpson Way, Escondido 92878
- Regional Water Board
- 9 — San Diego
HUC12 watershed Evidence: spatial
- Lower Escondido Creek HUC12 180703030402
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
- Robertsons Ready Mix
- Primary industry (SIC)
- 3273-Ready-Mixed Concrete
- Application ID
- 421892
- NOI processed
- Nov 14, 2011
- Last certified
- Jan 12, 2018
- Facility size
- 2.02 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 421892 | Industrial | Active | Nov 14, 2011 | — | Jan 12, 2018 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Escondido Creek
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: identification corroborated Escondido Creek CAR9046200020011005134542
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 635 m. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
Escondido Creek is on the 2026 Clean Water Act section 303(d) list (17 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 | 126440 |
| Bifenthrin | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 111671 |
| Cyfluthrin | 5 | List on 303(d) list (TMDL required list) | 5A | 111678 |
| Cypermethrin | 5 | List on 303(d) list (TMDL required list) | 5A | 144943 |
| DDT (Dichlorodiphenyltrichloroethane) | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 127350 |
| Indicator Bacteria | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 127882 |
| Iron | 5 | List on 303(d) list (TMDL required list) | 5A | 111651 |
| Manganese | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 111654 |
| Nitrogen | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 127254 |
| Phosphate | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 68646 |
| Phosphorus | 5 | List on 303(d) list (TMDL required list) | 5A | 111660 |
| Pyrethroids | 5 | List on 303(d) list (TMDL required list) | 5A | 111670 |
| Selenium | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 158370 |
| Sulfates | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 111663 |
| Total Dissolved Solids | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 111665 |
| Toxicity | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 111666 |
| Turbidity | 5 | List on 303(d) list (TMDL required list) | 5A | 111667 |
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 |
|---|---|---|---|
| Escondido Creek CAR9046200020011005134542 | 635 m | listed | 17 |
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.
12 distinct measurements across 4 parameters, most recent sample Mar 13, 2020.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2019 | 8 | 4 | 0 | Dec 07, 2019 | Mar 13, 2020 |
| 2018 | 4 | 4 | 0 | Feb 05, 2019 | Feb 05, 2019 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Iron, Total | mg/L | 3 | 2 | Feb 05, 2019 | Mar 13, 2020 | Results |
| Oil and Grease | mg/L | 3 | 3 | Feb 05, 2019 | Mar 13, 2020 | Results |
| pH | SU | 3 | 0 | Feb 05, 2019 | Mar 13, 2020 | Results |
| Total Suspended Solids (TSS) | mg/L | 3 | 1 | Feb 05, 2019 | Mar 13, 2020 | Results |
All results (12 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 13, 2020 | Iron, Total | DNQ .145 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1104534 | |
| Mar 13, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1104534 | |
| Mar 13, 2020 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1104534 | |
| Mar 13, 2020 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1104534 | |
| Dec 07, 2019 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1097989 | |
| Dec 07, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1097989 | |
| Dec 07, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1097989 | |
| Dec 07, 2019 | Total Suspended Solids (TSS) | 10.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1097989 | |
| Feb 05, 2019 | Iron, Total | .214 | mg/L | Effluent | Qualifying Storm Event | A3111B | 1045995 | |
| Feb 05, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | A5220B | 1045995 | |
| Feb 05, 2019 | pH | 8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1045995 | |
| Feb 05, 2019 | Total Suspended Solids (TSS) | 14.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1045995 |
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 | 8 | 8 Violation · 0 Potential (preliminary) · 0 Dismissed | Feb 06, 2019 – Feb 06, 2019 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Mar 25, 2019 – Jul 17, 2019 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Feb 06, 2019 – Feb 06, 2019 | Oct 21, 2026 | All inspections |
| Annual reports | 11 | 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 (22 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 24, 2026 | Annual reports | 1337864 | Annual report 2025 | — | |
| Jul 07, 2025 | Annual reports | 1296797 | Annual report 2024 | — | |
| Jun 20, 2024 | Annual reports | 1246022 | Annual report 2023 | — | |
| Jun 26, 2023 | Annual reports | 1192158 | Annual report 2022 | — | |
| Jul 06, 2022 | Annual reports | 1115797 | Annual report 2021 | — | |
| Jun 22, 2021 | Annual reports | 1063919 | Annual report 2020 | — | |
| Jul 08, 2020 | Annual reports | 980857 | Annual report 2019 | — | |
| Jul 17, 2019 | Enforcement actions | 433545 | NOV (Notice of Violation) | Active | R9-2019-0156 |
| Jun 07, 2019 | Annual reports | 957141 | Annual report 2018 | — | |
| Mar 25, 2019 | Enforcement actions | 432986 | SEL (Staff Enforcement Letter) | Active | |
| Feb 06, 2019 | Inspections | 2041932 | B Type compliance | — | Additional Info Required |
| Feb 06, 2019 | Violations | 869831 | Deficient BMP Implementation | Violation | Inspection |
| Feb 06, 2019 | Violations | 869832 | Effluent | Violation | Inspection |
| Feb 06, 2019 | Violations | 869833 | Unauthorized NSWD | Violation | Inspection |
| Feb 06, 2019 | Violations | 869834 | Deficient BMP Implementation | Violation | Inspection |
| Feb 06, 2019 | Violations | 869835 | Effluent | Violation | Inspection |
| Feb 06, 2019 | Violations | 869836 | Effluent | Violation | Inspection |
| Feb 06, 2019 | Violations | 869837 | Deficient BMP Implementation | Violation | Inspection |
| Feb 06, 2019 | Violations | 869838 | Deficient BMP Implementation | Violation | Inspection |
| Jul 05, 2018 | Annual reports | 942573 | Annual report 2017 | — | |
| Jun 30, 2017 | Annual reports | 882047 | Annual report 2016 | — | |
| Jun 30, 2016 | Annual reports | 846533 | 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.