Solo Enterprise Corp

Terminated WDID 4 19I018487 City Of Industry, Los Angeles County Region 4 · Los Angeles

At a glance

Permit Evidence: SMARTS record
Terminated Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
City Of Industry, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Puente Creek (as reported by the facility)
Evidence: identification corroborated Puente Creek Details
Identified receiving water on the 2026 303(d) list
Yes · 2 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
304 distinct results, 6 reporting years (2015 to 2022)
Most recent sample Jan 05, 2023 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
2 inspections · 4 violation records · 4 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
1 record
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
34.03267, -117.96816
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
220 N California Ave, City Of Industry 91744
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Lower San Jose Creek HUC12 180701060502

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
Solo Enterprise Corp
Primary industry (SIC)
3451-Screw Machine Products
Secondary SIC
3599-Industrial and Commercial Machinery and Equipment, NEC
Application ID
191637
NOI processed
Dec 05, 2003
Termination effective
Nov 10, 2023
Last certified
Jun 25, 2019
Facility size
45818 SqFt

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
191637 IndustrialTerminatedDec 05, 2003 Nov 10, 2023Jun 25, 2019

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

Receiving water

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

Evidence: identification corroborated Puente Creek CAR4053100020081117111726

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

Nearest distance from the reported facility location: 117 m. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

Puente Creek is on the 2026 Clean Water Act section 303(d) list (2 Appendix A decisions; category 5).

2026 Appendix A decisions for the identified receiving water
PollutantCategoryListing decisionTMDL requirementDecision ID
Indicator Bacteria5Do Not Delist from 303(d) list (TMDL required list) 5A74631
Selenium5List on 303(d) list (TMDL required list) 5A74959

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
Puente Creek CAR4053100020081117111726117 m listed2

Waterbodies within 1.0 km of the reported facility location. Method proximity/1.

SMARTS TMDL records Evidence: SMARTS-reported

SMARTS TMDL record as reported for this facility; it is not a determination that the TMDL applies to the facility.

TMDL records SMARTS lists for this facility
TMDLWaterbody (as reported)ParameterLimitTypePeriodDueDischarges to TMDL water
R4 - San Gabriel River Metals and Selenium TMDLSan Gabriel River Reach 2 and its tributary/iesLead, Total .166 mg/LNEL instantaneous FINAL2020-07-01Y

1 record. Links between these records and specific TMDL projects or listed waterbodies have not been reviewed and are not shown.

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.

304 distinct measurements across 11 parameters, most recent sample Jan 05, 2023.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
20222211 0 Jan 05, 2023Jan 05, 2023
20194010 0 Dec 04, 2019Apr 09, 2020
20186010 0 Nov 29, 2018Mar 20, 2019
20176010 0 Jan 08, 2018Mar 22, 2018
20168010 0 Dec 16, 2016Feb 17, 2017
2015427 0 Sep 15, 2015Mar 11, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Aluminum, Totalmg/L32 0Sep 15, 2015Jan 05, 2023 Results
Iron, Totalmg/L32 1Sep 15, 2015Jan 05, 2023 Results
Nitrite Plus Nitrate (as N)mg/L32 3Sep 15, 2015Jan 05, 2023 Results
Oil and Greasemg/L32 24Sep 15, 2015Jan 05, 2023 Results
pHSU32 0Sep 15, 2015Jan 05, 2023 Results
Total Suspended Solids (TSS)mg/L32 5Sep 15, 2015Jan 05, 2023 Results
Zinc, Totalmg/L32 1Sep 15, 2015Jan 05, 2023 Results
Copper, Totalmg/L26 2Dec 16, 2016Jan 05, 2023 Results
Nickel, Totalmg/L26 9Dec 16, 2016Jan 05, 2023 Results
Phosphorus, Total (as P)mg/L26 1Dec 16, 2016Jan 05, 2023 Results
Lead, Totalmg/L2 1Jan 05, 2023Jan 05, 2023 Results

All results (304 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Jan 05, 2023 Aluminum, Total .25 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Aluminum, Total .55 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Copper, Total .006 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Copper, Total .018 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Iron, Total .33 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Iron, Total .72 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Lead, Total ND mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Lead, Total .008 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Nickel, Total ND mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Nickel, Total .0025 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Nitrite Plus Nitrate (as N) .071 mg/L Effluent Qualifying Storm Event E353.2 1226851
Jan 05, 2023 Nitrite Plus Nitrate (as N) .066 mg/L Effluent Qualifying Storm Event E353.2 1226851
Jan 05, 2023 Oil and Grease 2.3 mg/L Effluent Qualifying Storm Event E1664B 1226851
Jan 05, 2023 Oil and Grease 2.2 mg/L Effluent Qualifying Storm Event E1664B 1226851
Jan 05, 2023 pH 6.38 SU Effluent Qualifying Storm Event pH_Field 1226851
Jan 05, 2023 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1226851
Jan 05, 2023 Phosphorus, Total (as P) .061 mg/L Effluent Qualifying Storm Event E365.3 1226851
Jan 05, 2023 Phosphorus, Total (as P) .11 mg/L Effluent Qualifying Storm Event E365.3 1226851
Jan 05, 2023 Total Suspended Solids (TSS) 24 mg/L Effluent Qualifying Storm Event A2540D 1226851
Jan 05, 2023 Total Suspended Solids (TSS) 22 mg/L Effluent Qualifying Storm Event A2540D 1226851
Jan 05, 2023 Zinc, Total .044 mg/L Effluent Qualifying Storm Event E200.7 1226851
Jan 05, 2023 Zinc, Total .15 mg/L Effluent Qualifying Storm Event E200.7 1226851
Apr 09, 2020 Aluminum, Total .29 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Aluminum, Total .085 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Copper, Total .006 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Copper, Total .004 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Iron, Total .36 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Iron, Total .058 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Nickel, Total .003 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Nickel, Total ND .003 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Nitrite Plus Nitrate (as N) .13 mg/L Effluent Qualifying Storm Event E353.2 1107062
Apr 09, 2020 Nitrite Plus Nitrate (as N) .12 mg/L Effluent Qualifying Storm Event E353.2 1107062
Apr 09, 2020 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1107062
Apr 09, 2020 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1107062
Apr 09, 2020 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1107062
Apr 09, 2020 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1107062
Apr 09, 2020 Phosphorus, Total (as P) .037 mg/L Effluent Qualifying Storm Event E365.3 1107062
Apr 09, 2020 Phosphorus, Total (as P) .016 mg/L Effluent Qualifying Storm Event E365.3 1107062
Apr 09, 2020 Total Suspended Solids (TSS) 18 mg/L Effluent Qualifying Storm Event A2540D 1107062
Apr 09, 2020 Total Suspended Solids (TSS) 2 mg/L Effluent Qualifying Storm Event A2540D 1107062
Apr 09, 2020 Zinc, Total .055 mg/L Effluent Qualifying Storm Event E200.7 1107062
Apr 09, 2020 Zinc, Total .061 mg/L Effluent Qualifying Storm Event E200.7 1107062
Dec 04, 2019 Aluminum, Total .42 mg/L Effluent Qualifying Storm Event E200.7 1107061
Dec 04, 2019 Aluminum, Total .36 mg/L Effluent Qualifying Storm Event E200.7 1107061
Dec 04, 2019 Copper, Total .015 mg/L Effluent Qualifying Storm Event E200.7 1107061
Dec 04, 2019 Copper, Total .016 mg/L Effluent Qualifying Storm Event E200.7 1107061
Dec 04, 2019 Iron, Total .44 mg/L Effluent Qualifying Storm Event E200.7 1107061
Dec 04, 2019 Iron, Total .24 mg/L Effluent Qualifying Storm Event E200.7 1107061
Dec 04, 2019 Nickel, Total .003 mg/L Effluent Qualifying Storm Event E200.7 1107061
Dec 04, 2019 Nickel, Total ND mg/L Effluent Qualifying Storm Event E200.7 1107061

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
Violations4 4 Violation · 0 Potential (preliminary) · 0 Dismissed Oct 19, 2004 – Jul 01, 2011 Oct 21, 2026 All violations
Enforcement actions4 4 issued · 0 draft · 0 withdrawn, rescinded or superseded Oct 19, 2004 – Feb 12, 2015 Oct 21, 2026 All actions
Inspections2inspections, not findings Oct 19, 2004 – Nov 28, 2023 Oct 21, 2026 All inspections
Annual reports9certified reports (contents not shown) 2015 – 2023 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 (19 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Nov 28, 2023 Inspections 2062609 NOT FinalizedNo Further Action
Nov 07, 2023 Annual reports 1242709 Annual report 2023 —
Jun 16, 2023 Annual reports 1188690 Annual report 2022 —
Jun 29, 2022 Annual reports 1112011 Annual report 2021 —
Jul 07, 2021 Annual reports 1067997 Annual report 2020 —
Jul 09, 2020 Annual reports 985210 Annual report 2019 —
Jul 09, 2019 Annual reports 952737 Annual report 2018 —
Jul 09, 2018 Annual reports 938150 Annual report 2017 —
Jul 12, 2017 Annual reports 877357 Annual report 2016 —
Jul 06, 2016 Annual reports 844454 Annual report 2015 —
Feb 12, 2015 Enforcement actions 418268 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
May 07, 2013 Enforcement actions 412202 NOV (Notice of Violation) Historical
Aug 10, 2012 Enforcement actions 409622 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Jul 01, 2011 Violations 848869 Late Report ViolationReport
Jul 02, 2010 Violations 856321 Late Report ViolationReport
Oct 19, 2004 Enforcement actions 253354 NTC (Notice to Comply) HistoricalUNKNOWN
Oct 19, 2004 Inspections 1736501 B Type compliance —Additional Info Required
Oct 19, 2004 Violations 259053 Deficient BMP Implementation ViolationInspection
Oct 19, 2004 Violations 259055 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.