Blue Cross Laboratories
Terminated WDID 4 19I020329 Santa Clarita, 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
- Santa Clarita, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Santa Clarita Storm Water system (as reported by the facility)
- Evidence: not confirmed 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
- None
- Monitoring results Evidence: facility-reported
- 97 distinct results, 7 reporting years (2015 to 2021)
- Most recent sample Dec 29, 2021 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 0 inspections · 6 violation records · 5 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
- 34.41267, -118.50184
- 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
- 20950 Centre Pointe Pkwy, Santa Clarita 91350
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Sand Canyon-Santa Clara River HUC12 180701020107
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
- Darrell Mahler
- Primary industry (SIC)
- 2841-Soaps and Other Detergents, Except Speciality Cleaners
- Secondary SIC
- 2844-Perfumes, Cosmetics, and Other Toilet Preparations
- Application ID
- 305763
- NOI processed
- Jul 05, 2006
- Termination effective
- Aug 30, 2023
- Last certified
- Jul 01, 2019
- Facility size
- 5 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 305763 | Industrial | Terminated | Jul 05, 2006 | Aug 30, 2023 | Jul 01, 2019 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Santa Clarita Storm Water system
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: not confirmed Not matchable to a single waterbody
Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.
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.
97 distinct measurements across 5 parameters, most recent sample Dec 29, 2021.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2021 | 10 | 5 | 0 | Oct 25, 2021 | Dec 29, 2021 |
| 2020 | 10 | 5 | 0 | Dec 28, 2020 | Jan 29, 2021 |
| 2019 | 17 | 5 | 0 | Dec 05, 2019 | Apr 06, 2020 |
| 2018 | 10 | 5 | 0 | Nov 29, 2018 | Jan 14, 2019 |
| 2017 | 15 | 5 | 0 | Jan 08, 2018 | Mar 21, 2018 |
| 2016 | 20 | 5 | 0 | Dec 16, 2016 | Jan 20, 2017 |
| 2015 | 15 | 5 | 0 | Jan 06, 2016 | Apr 08, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Nitrite Plus Nitrate (as N) | mg/L | 20 | 1 | Jan 06, 2016 | Dec 29, 2021 | Results |
| Oil and Grease | mg/L | 20 | 15 | Jan 06, 2016 | Dec 29, 2021 | Results |
| Total Suspended Solids (TSS) | mg/L | 20 | 0 | Jan 06, 2016 | Dec 29, 2021 | Results |
| Zinc, Total | mg/L | 20 | 0 | Jan 06, 2016 | Dec 29, 2021 | Results |
| pH | SU | 17 | 0 | Jan 06, 2016 | Dec 29, 2021 | Results |
All results (97 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 29, 2021 | Nitrite Plus Nitrate (as N) | .699 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1199606 | |
| Dec 29, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1199606 | |
| Dec 29, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1199606 | |
| Dec 29, 2021 | Total Suspended Solids (TSS) | 6.73 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1199606 | |
| Dec 29, 2021 | Zinc, Total | .196 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1199606 | |
| Oct 25, 2021 | Nitrite Plus Nitrate (as N) | .522 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1199606 | |
| Oct 25, 2021 | Oil and Grease | 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1199606 | |
| Oct 25, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1199606 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 5.56 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1199606 | |
| Oct 25, 2021 | Zinc, Total | .121 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1199606 | |
| Jan 29, 2021 | Nitrite Plus Nitrate (as N) | .146 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1155040 | |
| Jan 29, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1155040 | |
| Jan 29, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1155040 | |
| Jan 29, 2021 | Total Suspended Solids (TSS) | 2.05 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1155040 | |
| Jan 29, 2021 | Zinc, Total | .0412 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1155040 | |
| Dec 28, 2020 | Nitrite Plus Nitrate (as N) | .239 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1155040 | |
| Dec 28, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1155040 | |
| Dec 28, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1155040 | |
| Dec 28, 2020 | Total Suspended Solids (TSS) | 5.48 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1155040 | |
| Dec 28, 2020 | Zinc, Total | .181 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1155040 | |
| Apr 06, 2020 | Nitrite Plus Nitrate (as N) | .229 | mg/L | Effluent | Qualifying Storm Event | 1122579 | ||
| Apr 06, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | 1122579 | ||
| Apr 06, 2020 | Total Suspended Solids (TSS) | 1.61 | mg/L | Effluent | Qualifying Storm Event | 1122579 | ||
| Apr 06, 2020 | Zinc, Total | .0867 | mg/L | Effluent | Qualifying Storm Event | 1122579 | ||
| Mar 17, 2020 | Nitrite Plus Nitrate (as N) | .25 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1122579 | |
| Mar 17, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1122579 | |
| Mar 17, 2020 | Total Suspended Solids (TSS) | 1.02 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1122579 | |
| Mar 17, 2020 | Zinc, Total | .0314 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1122579 | |
| Mar 10, 2020 | Nitrite Plus Nitrate (as N) | .465 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1122579 | |
| Mar 10, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1122579 | |
| Mar 10, 2020 | Total Suspended Solids (TSS) | 16 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1122579 | |
| Mar 10, 2020 | Zinc, Total | .0782 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1122579 | |
| Dec 05, 2019 | Nitrite Plus Nitrate (as N) | .155 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1122118 | |
| Dec 05, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1122118 | |
| Dec 05, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1122118 | |
| Dec 05, 2019 | Total Suspended Solids (TSS) | .707 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1122118 | |
| Dec 05, 2019 | Zinc, Total | .0339 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1122118 | |
| Jan 14, 2019 | Nitrite Plus Nitrate (as N) | .32 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1074528 | |
| Jan 14, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1074528 | |
| Jan 14, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1074528 | |
| Jan 14, 2019 | Total Suspended Solids (TSS) | 2.92 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1074528 | |
| Jan 14, 2019 | Zinc, Total | .0364 | mg/L | Effluent | Qualifying Storm Event | A3111B | 1074528 | |
| Nov 29, 2018 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1057836 | |
| Nov 29, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1057836 | |
| Nov 29, 2018 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1057836 | |
| Nov 29, 2018 | Total Suspended Solids (TSS) | 2.83 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1057836 | |
| Nov 29, 2018 | Zinc, Total | .0237 | mg/L | Effluent | Qualifying Storm Event | A3111B | 1057836 | |
| Mar 21, 2018 | Nitrite Plus Nitrate (as N) | .225 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1003314 | |
| Mar 21, 2018 | Oil and Grease | 9.78 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1003314 | |
| Mar 21, 2018 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1003314 |
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 | 6 | 6 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 2008 – Feb 15, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 5 | 5 issued · 0 draft · 0 withdrawn, rescinded or superseded | Jun 16, 2009 – Feb 15, 2023 | Oct 21, 2026 | All actions |
| Inspections | 0 | inspections, not findings | — | Oct 21, 2026 | |
| Annual reports | 7 | certified reports (contents not shown) | 2015 – 2021 | 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 (18 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Feb 15, 2023 | Enforcement actions | 449512 | NOV (Notice of Violation) | Historical | |
| Feb 15, 2023 | Violations | 884579 | Incomplete/Insufficient SWPPP | Violation | Report |
| Jul 15, 2022 | Annual reports | 1113325 | Annual report 2021 | — | |
| Aug 10, 2021 | Annual reports | 1069364 | Annual report 2020 | — | |
| Jul 16, 2020 | Annual reports | 986676 | Annual report 2019 | — | |
| Jul 19, 2019 | Annual reports | 954257 | Annual report 2018 | — | |
| Jul 12, 2018 | Annual reports | 939674 | Annual report 2017 | — | |
| Jun 27, 2017 | Annual reports | 878956 | Annual report 2016 | — | |
| Jul 14, 2016 | Annual reports | 843656 | Annual report 2015 | — | |
| Feb 27, 2015 | Enforcement actions | 418426 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 01, 2014 | Violations | 856557 | Late Report | Violation | Report |
| Jul 01, 2013 | Violations | 856556 | Late Report | Violation | Report |
| Aug 10, 2012 | Enforcement actions | 409217 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 01, 2012 | Violations | 856555 | Late Report | Violation | Report |
| Jul 01, 2011 | Violations | 848373 | Late Report | Violation | Report |
| Sep 01, 2010 | Enforcement actions | 414653 | ACL (Administrative Civil Liability) | Historical | R4-2010-0068-SW |
| Jun 16, 2009 | Enforcement actions | 401376 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Active | |
| Jul 02, 2008 | Violations | 841204 | Late Report | Violation | Report |
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.