Escondido Ready Mix

Terminated WDID 9 37I005160 Escondido, San Diego County Region 9 · San Diego

At a glance

Permit Evidence: SMARTS record
Terminated 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
None
Monitoring results Evidence: facility-reported
156 distinct results, 9 reporting years (2016 to 2025)
Most recent sample Feb 17, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 0 violation records · 0 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 records
TMDL records

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

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
33.12666, -117.11357
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
1508 Mission Rd, Escondido 92029
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
Terminated
Operator
Escondido Ready Mix
Primary industry (SIC)
3273-Ready-Mixed Concrete
Application ID
218314
NOI processed
Apr 07, 1992
Termination effective
Jun 19, 2026
Last certified
Jun 25, 2015
Facility size
4 Acres

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
218314 IndustrialTerminatedApr 07, 1992 Jun 19, 2026Jun 25, 2015

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: 1.5 km. 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).

2026 Appendix A decisions for the identified receiving water
PollutantCategoryListing decisionTMDL requirementDecision ID
Benthic Community Effects5Do Not Delist from 303(d) list (TMDL required list) 5A126440
Bifenthrin5Do Not Delist from 303(d) list (TMDL required list) 5A111671
Cyfluthrin5List on 303(d) list (TMDL required list) 5A111678
Cypermethrin5List on 303(d) list (TMDL required list) 5A144943
DDT (Dichlorodiphenyltrichloroethane)5Do Not Delist from 303(d) list (TMDL required list) 5A127350
Indicator Bacteria5Do Not Delist from 303(d) list (TMDL required list) 5A127882
Iron5List on 303(d) list (TMDL required list) 5A111651
Manganese5Do Not Delist from 303(d) list (TMDL required list) 5A111654
Nitrogen5Do Not Delist from 303(d) list (TMDL required list) 5A127254
Phosphate5Do Not Delist from 303(d) list (TMDL required list) 5A68646
Phosphorus5List on 303(d) list (TMDL required list) 5A111660
Pyrethroids5List on 303(d) list (TMDL required list) 5A111670
Selenium5Do Not Delist from 303(d) list (TMDL required list) 5A158370
Sulfates5Do Not Delist from 303(d) list (TMDL required list) 5A111663
Total Dissolved Solids5Do Not Delist from 303(d) list (TMDL required list) 5A111665
Toxicity5Do Not Delist from 303(d) list (TMDL required list) 5A111666
Turbidity5List on 303(d) list (TMDL required list) 5A111667

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.

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.

156 distinct measurements across 9 parameters, most recent sample Feb 17, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
202544 0 Feb 17, 2026Feb 17, 2026
202484 0 Mar 13, 2025Mar 13, 2025
202366 0 Feb 01, 2024Feb 01, 2024
2022279 0 Nov 08, 2022Feb 23, 2023
2021369 0 Dec 15, 2021Mar 04, 2022
2020189 0 Jan 25, 2021Jan 26, 2021
2019459 0 Nov 19, 2019Mar 18, 2020
201884 0 Dec 06, 2018Mar 12, 2019
201644 0 Dec 16, 2016Dec 16, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Iron, Totalmg/L21 0Dec 16, 2016Feb 17, 2026 Results
Oil and Greasemg/L21 18Dec 16, 2016Feb 17, 2026 Results
pHSU21 0Dec 16, 2016Feb 17, 2026 Results
Total Suspended Solids (TSS)mg/L21 3Dec 16, 2016Feb 17, 2026 Results
Aluminum, Total Recoverableug/L15 4Nov 19, 2019Feb 01, 2024 Results
Nitrite Plus Nitrate (as N)mg/L15 0Nov 19, 2019Feb 01, 2024 Results
Copper, Total Recoverableug/L14 11Nov 19, 2019Feb 23, 2023 Results
Phosphorus, Total (as P)mg/L14 2Nov 19, 2019Feb 23, 2023 Results
Zinc, Total Recoverableug/L14 2Nov 19, 2019Feb 23, 2023 Results

All results (156 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 17, 2026 Iron, Total .4 mg/L Effluent Qualifying Storm Event E200.7 1369743
Feb 17, 2026 Oil and Grease 1.3 mg/L Effluent Qualifying Storm Event E1664B 1369743
Feb 17, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Field 1369743
Feb 17, 2026 Total Suspended Solids (TSS) 10 mg/L Effluent Qualifying Storm Event A2540D 1369743
Mar 13, 2025 Iron, Total 3.97 mg/L Effluent Qualifying Storm Event E200.7 1329019
Mar 13, 2025 Iron, Total 1.37 mg/L Effluent Qualifying Storm Event E200.7 1329019
Mar 13, 2025 Oil and Grease DNQ 1.69 mg/L Effluent Qualifying Storm Event E1664B 1329019
Mar 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1329019
Mar 13, 2025 pH 8 SU Effluent Qualifying Storm Event pH_Field 1329019
Mar 13, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Field 1329019
Mar 13, 2025 Total Suspended Solids (TSS) 76.8 mg/L Effluent Qualifying Storm Event A2540D 1329019
Mar 13, 2025 Total Suspended Solids (TSS) 28.1 mg/L Effluent Qualifying Storm Event A2540D 1329019
Feb 01, 2024 Aluminum, Total Recoverable .984 ug/L Effluent Qualifying Storm Event E200.8 1282220
Feb 01, 2024 Iron, Total .934 mg/L Effluent Qualifying Storm Event E200.7 1282220
Feb 01, 2024 Nitrite Plus Nitrate (as N) .266 mg/L Effluent Qualifying Storm Event A4500NE 1282220
Feb 01, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1282220
Feb 01, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Field 1282220
Feb 01, 2024 Total Suspended Solids (TSS) 20.1 mg/L Effluent Qualifying Storm Event A2540D 1282220
Feb 23, 2023 Aluminum, Total Recoverable 2520 ug/L Effluent Qualifying Storm Event E200.8 1237797
Feb 23, 2023 Aluminum, Total Recoverable 594 ug/L Effluent Qualifying Storm Event E200.8 1237797
Feb 23, 2023 Copper, Total Recoverable 8.01 ug/L Effluent Qualifying Storm Event E200.8 1237797
Feb 23, 2023 Copper, Total Recoverable 5.85 ug/L Effluent Qualifying Storm Event E200.8 1237797
Feb 23, 2023 Iron, Total 1.8 mg/L Effluent Qualifying Storm Event E200.7 1237797
Feb 23, 2023 Iron, Total .702 mg/L Effluent Qualifying Storm Event E200.7 1237797
Feb 23, 2023 Nitrite Plus Nitrate (as N) .122 mg/L Effluent Qualifying Storm Event A4500NE 1237797
Feb 23, 2023 Nitrite Plus Nitrate (as N) .24 mg/L Effluent Qualifying Storm Event A4500NE 1237797
Feb 23, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1237797
Feb 23, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1237797
Feb 23, 2023 pH 6 SU Effluent Qualifying Storm Event pH_Field 1237797
Feb 23, 2023 pH 5 SU Effluent Qualifying Storm Event pH_Field 1237797
Feb 23, 2023 Phosphorus, Total (as P) DNQ .0559 mg/L Effluent Qualifying Storm Event A4500PE 1237797
Feb 23, 2023 Phosphorus, Total (as P) DNQ .09 mg/L Effluent Qualifying Storm Event A4500PE 1237797
Feb 23, 2023 Total Suspended Solids (TSS) 88.2 mg/L Effluent Qualifying Storm Event A2540D 1237797
Feb 23, 2023 Total Suspended Solids (TSS) 21.9 mg/L Effluent Qualifying Storm Event A2540D 1237797
Feb 23, 2023 Zinc, Total Recoverable 56.9 ug/L Effluent Qualifying Storm Event E200.8 1237797
Feb 23, 2023 Zinc, Total Recoverable 43.8 ug/L Effluent Qualifying Storm Event E200.8 1237797
Nov 08, 2022 Aluminum, Total Recoverable 493 ug/L Effluent Qualifying Storm Event E200.8 1223617
Nov 08, 2022 Copper, Total Recoverable 9.21 ug/L Effluent Qualifying Storm Event E200.8 1223617
Nov 08, 2022 Iron, Total .722 mg/L Effluent Qualifying Storm Event E200.7 1223617
Nov 08, 2022 Nitrite Plus Nitrate (as N) .797 mg/L Effluent Qualifying Storm Event A4500NE 1223617
Nov 08, 2022 Oil and Grease DNQ 1.6 mg/L Effluent Qualifying Storm Event E1664B 1223617
Nov 08, 2022 pH 8 SU Effluent Qualifying Storm Event pH_Field 1223617
Nov 08, 2022 Phosphorus, Total (as P) .111 mg/L Effluent Qualifying Storm Event A4500PE 1223617
Nov 08, 2022 Total Suspended Solids (TSS) 19.7 mg/L Effluent Qualifying Storm Event A2540D 1223617
Nov 08, 2022 Zinc, Total Recoverable 41.3 ug/L Effluent Qualifying Storm Event E200.8 1223617
Mar 04, 2022 Aluminum, Total Recoverable 1840 ug/L Effluent Qualifying Storm Event E200.7 1180559
Mar 04, 2022 Copper, Total Recoverable DNQ 12 ug/L Effluent Qualifying Storm Event E200.7 1180559
Mar 04, 2022 Iron, Total 2.76 mg/L Effluent Qualifying Storm Event E200.7 1180559
Mar 04, 2022 Nitrite Plus Nitrate (as N) .24 mg/L Effluent Qualifying Storm Event E353.2 1180559
Mar 04, 2022 Oil and Grease DNQ 4.2 mg/L Effluent Qualifying Storm Event E1664A 1180559

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.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations0 0 Violation · 0 Potential (preliminary) · 0 Dismissed — Oct 21, 2026
Enforcement actions0 0 issued · 0 draft · 0 withdrawn, rescinded or superseded — Oct 21, 2026
Inspections1inspections, not findings Dec 04, 2019 – Dec 04, 2019 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, 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 (12 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jun 05, 2026 Annual reports 1335752 Annual report 2025 —
Jul 07, 2025 Annual reports 1294587 Annual report 2024 —
Mar 25, 2024 Annual reports 1243695 Annual report 2023 —
Jul 11, 2023 Annual reports 1189721 Annual report 2022 —
Jul 11, 2022 Annual reports 1113128 Annual report 2021 —
Jul 12, 2021 Annual reports 1069156 Annual report 2020 —
Jul 06, 2020 Annual reports 986454 Annual report 2019 —
Dec 04, 2019 Inspections 2045728 B Type compliance —Follow-up Inspection Needed
Jul 12, 2019 Annual reports 954029 Annual report 2018 —
Jul 11, 2018 Annual reports 939447 Annual report 2017 —
Jun 20, 2017 Annual reports 878715 Annual report 2016 —
Jun 29, 2016 Annual reports 846870 Annual report 2015 —

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

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

Records are shown as published and are not compliance determinations. How geographic context is derived.