Superior Ready Mix

Active WDID 9 37I005157 San Diego, 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
San Diego, San Diego County
Region 9 · San Diego · Location · Statewide map
Receiving water
San Diego 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
4 distinct results, 1 reporting year (2016 to 2016)
Most recent sample Dec 16, 2016 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
3 inspections · 2 violation records · 2 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
32.80741, -117.07723
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
7500 Mission Gorge Rd, San Diego 92120
Regional Water Board
9 — San Diego

HUC12 watershed Evidence: spatial

  • Mission Valley-San Diego River HUC12 180703040705

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
Escondido Ready Mix
Primary industry (SIC)
3273-Ready-Mixed Concrete
Secondary SIC
2951-Asphalt Paving Mixtures and Blocks
Tertiary SIC
1442-Construction Sand and Gravel
Application ID
218312
NOI processed
Apr 07, 1992
Last certified
Dec 16, 2025
Facility size
250 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
218312 IndustrialActiveApr 07, 1992 —Dec 16, 2025

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported
San Diego 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

2 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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
San Diego River (Lower) CAR9071100020011025101606255 m listed16

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.

4 distinct measurements across 4 parameters, most recent sample Dec 16, 2016.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
201644 0 Dec 16, 2016Dec 16, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Iron, Totalmg/L1 0Dec 16, 2016Dec 16, 2016 Results
Oil and Greasemg/L1 1Dec 16, 2016Dec 16, 2016 Results
pHSU1 0Dec 16, 2016Dec 16, 2016 Results
Total Suspended Solids (TSS)mg/L1 0Dec 16, 2016Dec 16, 2016 Results

All results (4 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Dec 16, 2016 Iron, Total 9.56 mg/L Effluent Qualifying Storm Event E200.7 925322
Dec 16, 2016 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 925322
Dec 16, 2016 pH .5 SU Effluent Qualifying Storm Event pH_Paper 925322
Dec 16, 2016 Total Suspended Solids (TSS) 134 mg/L Effluent Qualifying Storm Event A2540D 925322

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
Violations2 2 Violation · 0 Potential (preliminary) · 0 Dismissed May 21, 2012 – Oct 23, 2012 Oct 21, 2026 All violations
Enforcement actions2 2 issued · 0 draft · 0 withdrawn, rescinded or superseded May 21, 2012 – Oct 23, 2012 Oct 21, 2026 All actions
Inspections3inspections, not findings May 21, 2012 – 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 (18 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 14, 2026 Annual reports 1335751 Annual report 2025 —
Jul 08, 2025 Annual reports 1294586 Annual report 2024 —
Jul 12, 2024 Annual reports 1243694 Annual report 2023 —
Jul 10, 2023 Annual reports 1189720 Annual report 2022 —
Jul 11, 2022 Annual reports 1113127 Annual report 2021 —
Jul 06, 2021 Annual reports 1069155 Annual report 2020 —
Jul 06, 2020 Annual reports 986453 Annual report 2019 —
Dec 04, 2019 Inspections 2045727 Inspection from Vehicle PerformedFollow-up Inspection Needed
Jul 11, 2019 Annual reports 954028 Annual report 2018 —
May 23, 2018 Annual reports 939446 Annual report 2017 —
Jun 21, 2017 Annual reports 878714 Annual report 2016 —
Jun 29, 2016 Annual reports 840236 Annual report 2015 —
Oct 23, 2012 Enforcement actions 410494 SEL (Staff Enforcement Letter) Active
Oct 23, 2012 Inspections 2016961 Non-compliance Follow-up —Additional Info Required
Oct 23, 2012 Violations 849576 Deficient BMP Implementation ViolationInspection
May 21, 2012 Enforcement actions 410495 SEL (Staff Enforcement Letter) Active
May 21, 2012 Inspections 2015387 Non-compliance Follow-up —Follow-up Inspection Needed
May 21, 2012 Violations 849577 Deficient BMP Implementation ViolationInspection

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.