La Salina WWTP

Active WDID 9 37I005759 Oceanside, 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
Oceanside, San Diego County
Region 9 · San Diego · Location · Statewide map
Receiving water
Loma Alta Creek (as reported by the facility)
Evidence: identification corroborated Loma Alta Creek Details
Identified receiving water on the 2026 303(d) list
Yes · 10 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
8 waterbodies; 3 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
115 distinct results, 6 reporting years (2018 to 2024)
Most recent sample Mar 13, 2025 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
2 inspections · 6 violation records · 1 enforcement action
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
33.18023, -117.37093
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
1330 South Tait St, Oceanside 92054
Regional Water Board
9 — San Diego

HUC12 watershed Evidence: spatial

  • Loma Alta Creek-Frontal Gulf of Santa Catalina HUC12 180703030504

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
Oceanside PWD
Primary industry (SIC)
4952-Sewerage Systems
Application ID
218339
NOI processed
Apr 07, 1992
Last certified
Nov 26, 2019
Facility size
9 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
218339 IndustrialActiveApr 07, 1992 —Nov 26, 2019

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

Receiving water

Reported by the facility Evidence: facility-reported
Loma Alta Creek
Discharges directly / indirectly
N / N (as answered in the permit application)

Evidence: identification corroborated Loma Alta Creek CAR9041000019991117145300

Receiving water reported by facility — waterbody identification corroborated by geographic evidence.

Nearest distance from the reported facility location: 347 m. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

Loma Alta Creek is on the 2026 Clean Water Act section 303(d) list (10 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) 5A126444
Bifenthrin5Do Not Delist from 303(d) list (TMDL required list) 5A111533
Cyfluthrin5List on 303(d) list (TMDL required list) 5A111539
Cyhalothrin, Lambda5List on 303(d) list (TMDL required list) 5A111541
Indicator Bacteria5List on 303(d) list (TMDL required list) 5A127885
Nitrogen5List on 303(d) list (TMDL required list) 5A132041
Phosphorus5List on 303(d) list (TMDL required list) 5A111526
Pyrethroids5List on 303(d) list (TMDL required list) 5A111532
Selenium5Do Not Delist from 303(d) list (TMDL required list) 5A111527
Toxicity5Do Not Delist from 303(d) list (TMDL required list) 5A111529

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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Pacific Ocean, La Jolla to San Onofre CAO9051100020200324050788129 m not listed0
Pacific Ocean, Buccaneer Beach CAC9031100020200206036665135 m not listed0
Loma Alta Slough CAE9041000019991117150520213 m listed2
Pacific Ocean Shoreline, Loma Alta HSA, Oceanside at Forester Streets CAC9041000020090224105128266 m not listed0
Loma Alta Creek CAR9041000019991117145300347 m listed10
Show 3 more nearby waterbodies
More nearby 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Pacific Ocean Shoreline, Loma Alta HSA, at Loma Alta Creek mouth CAC9041000020091104171140364 m listed2
Pacific Ocean Shoreline, El Salto HSA, Oceanside at Cassidy Street CAC9042100020091025220232527 m not listed0
Pacific Ocean Shoreline, Loma Alta HSA, Oceanside at Wisconsin Street CAC9041000020091025211542653 m not listed0

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.

115 distinct measurements across 14 parameters, most recent sample Mar 13, 2025.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
20241313 0 Mar 13, 2025Mar 13, 2025
20232613 0 Jan 22, 2024Feb 01, 2024
20223113 0 Nov 08, 2022Mar 21, 2023
20211313 0 Dec 14, 2021Dec 14, 2021
2019164 0 Nov 28, 2019Apr 09, 2020
2018164 0 Dec 05, 2018Jan 12, 2019

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
pHSU15 0Dec 05, 2018Mar 13, 2025 Results
Total Suspended Solids (TSS)mg/L15 0Dec 05, 2018Mar 13, 2025 Results
Oil and Greasemg/L14 10Dec 05, 2018Mar 13, 2025 Results
Electrical Conductivity @ 25 Deg. Cumhos/cm8 0Dec 05, 2018Apr 09, 2020 Results
Enterococci MPNMPN/100 mL7 0Dec 14, 2021Mar 13, 2025 Results
Fecal ColiformMPN/100 mL7 0Dec 14, 2021Mar 13, 2025 Results
Total ColiformMPN/100 mL7 0Dec 14, 2021Mar 13, 2025 Results
Chloridemg/L6 0Dec 14, 2021Mar 13, 2025 Results
Nitrate, Total (as N)mg/L6 0Dec 14, 2021Mar 13, 2025 Results
Nitrite Plus Nitrate (as N)mg/L6 0Dec 14, 2021Mar 13, 2025 Results
Nitrite, Total (as N)mg/L6 6Dec 14, 2021Mar 13, 2025 Results
Nitrogen, Total (as N)mg/L6 0Dec 14, 2021Mar 13, 2025 Results
Show 2 more parameters
More parameters
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Phosphorus, Total (as P)mg/L6 0Dec 14, 2021Mar 13, 2025 Results
Total Kjeldahl Nitrogen (TKN) (as N)mg/L6 0Dec 14, 2021Mar 13, 2025 Results

Total Coliform results (7 distinct rows, show all)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Mar 13, 2025 Total Coliform 240000 MPN/100 mL Effluent Qualifying Storm Event A9221B 1329274
Feb 01, 2024 Total Coliform 350000 MPN/100 mL Effluent Qualifying Storm Event A9221B 1280924
Jan 22, 2024 Total Coliform 350000 MPN/100 mL Effluent Qualifying Storm Event A9221B 1279205
Mar 21, 2023 Total Coliform 920000 MPN/100 mL Effluent Qualifying Storm Event A9221B 1215600
Mar 15, 2023 Total Coliform 840000 MPN/100 mL Effluent Qualifying Storm Event A9221B 1235278
Nov 08, 2022 Total Coliform 540000 MPN/100 mL Effluent Qualifying Storm Event A9221B 1216790
Dec 14, 2021 Total Coliform 350000 MPN/100 mL Effluent Qualifying Storm Event A9221B 1174329

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
Violations6 6 Violation · 0 Potential (preliminary) · 0 Dismissed Apr 03, 2018 – Apr 03, 2018 Oct 21, 2026 All violations
Enforcement actions1 1 issued · 0 draft · 0 withdrawn, rescinded or superseded Apr 03, 2018 – Apr 03, 2018 Oct 21, 2026 All actions
Inspections2inspections, not findings Jun 25, 2003 – Apr 03, 2018 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 (20 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 13, 2026 Annual reports 1336993 Annual report 2025 —
Jul 10, 2025 Annual reports 1295883 Annual report 2024 —
Jul 12, 2024 Annual reports 1245059 Annual report 2023 —
Jul 13, 2023 Annual reports 1191145 Annual report 2022 —
Jul 12, 2022 Annual reports 1114678 Annual report 2021 —
Jul 12, 2021 Annual reports 1070775 Annual report 2020 —
Jul 10, 2020 Annual reports 988192 Annual report 2019 —
Jul 12, 2019 Annual reports 955824 Annual report 2018 —
Jul 10, 2018 Annual reports 941248 Annual report 2017 —
Apr 03, 2018 Enforcement actions 429573 SEL (Staff Enforcement Letter) Historical
Apr 03, 2018 Inspections 2037427 B Type compliance —Additional Info Required
Apr 03, 2018 Violations 866693 Incomplete/Insufficient SWPPP ViolationInspection
Apr 03, 2018 Violations 866694 Incomplete/Insufficient SWPPP ViolationInspection
Apr 03, 2018 Violations 866695 Deficient BMP Implementation ViolationInspection
Apr 03, 2018 Violations 866696 Unauthorized NSWD ViolationInspection
Apr 03, 2018 Violations 866697 Deficient BMP Implementation ViolationInspection
Apr 03, 2018 Violations 866698 Deficient BMP Implementation ViolationInspection
Jul 21, 2017 Annual reports 880622 Annual report 2016 —
Jul 15, 2016 Annual reports 847576 Annual report 2015 —
Jun 25, 2003 Inspections 331116 B Type compliance —

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.