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Place ID 791884 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
4 791884 Inglewood Oil Field Oil/Gas Extraction 5640 South Fairfax Los Angeles, CA, 90056 Los Angeles
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
581241 Person Joseph Rudolph Walters Is Onsite Manager For 11/30/2018
581241 Person Joseph Rudolph Walters Is A Data Submitter For 07/19/2018 11/30/2018
568599 Person John Landgard Is Onsite Manager For 10/05/2017 02/26/2019
556948 Person James Nelson Is A Data Submitter For 02/07/2017
520196 Person Patrick Vowell Is Onsite Manager For 02/03/2017 05/22/2020
562305 Person Justin Lee Campbell Is A Data Submitter For 02/01/2017
562173 Organization Sentinel Peak Resources California LLC Owner and Operator Privately-Owned Business 01/01/2017
556948 Person James Nelson Is Onsite Manager For 06/07/2016 12/31/2016
546448 Person Jennifer Dishon Is A Data Submitter For 05/13/2014 12/31/2016
540360 Person Anna Zepplin Is A Data Submitter For 06/05/2013 11/18/2015
538116 Person Laura Vlk Is A Data Submitter For 03/12/2013 12/31/2016
538957 Person Patrick Gorski Is A Data Submitter For 02/27/2013 12/31/2016
35915 Organization Freeport-McMoRan Oil & Gas Owner Privately-Owned Business 02/21/2013 12/31/2016
96582 Person Candace Salway Is Onsite Manager For 09/22/1980 07/01/2016
Total Related Parties: 14
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
416564 NPDES Permit 4 NPDINDLRG R4-2018-0020 4B192113018 04/01/2018 03/31/2023 Active N
383620 NPDES Permit 4 NPDNONMUNIPRCS R4-2013-0021 4B192113018 03/09/2013 01/10/2018 Historical N
135008 NPDES Permit 4 NPDNONMUNIPRCS 94-028 4B192113018 04/04/1994 01/01/2011 Historical N
133557 NPDES Permit 4 NPDESWW 87-009 4B192113018 01/26/1987 01/10/1992 Historical N
134191 NPDES Permit 4 NPDESWW 80-049 4B192113018 09/22/1980 09/10/1985 Historical N
135127 WDR 4 WDRNONMUNIPRCS P 3329 4B192041001 08/25/1980 08/22/1995 Historical N
134128 NPDES Permit 4 NPDESWW 79-169 4B192113018 11/26/1979 11/10/1984 Historical N
Total Reg Measures: 7
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1143310 03/12/2025 OEV TPH C13-C22 Daily Maximum limit is 100 g/day and reported value was 267 g/day at EFF-006. As a protective measure, Sentinel Peak Resources will attempt not to draw down stormwater too low within the basins at the end of a discharge event. We may also assess the water turbidity within the activated carbon vessels and compare it to the initial turbidity within the vessels at the onset of treatment. If much greater elevated turbidity levels are experienced, the activated carbon filters would be backwashed with the intent to expose adsorption sites to improve TPH capture. This activity would follow a completed discharge event. If the source of non-compliance can be more definitively determined, a further plan to eliminate or minimize the potential for non-compliance will also be formulated. Violation U eSMR
1143311 03/12/2025 OEV TPH C13-C22 Daily Maximum limit is 100 g/day and reported value was 468 g/day at EFF-001. As a protective measure, Sentinel Peak Resources will attempt not to draw down stormwater too low within the basins at the end of a discharge event. We may also assess the water turbidity within the activated carbon vessels and compare it to the initial turbidity within the vessels at the onset of treatment. If much greater elevated turbidity levels are experienced, the activated carbon filters would be backwashed with the intent to expose adsorption sites to improve TPH capture. This activity would follow a completed discharge event. If the source of non-compliance can be more definitively determined, a further plan to eliminate or minimize the potential for non-compliance will also be formulated. Violation U eSMR
1142158 03/31/2024 Deficient Reporting pH and temperature not analyzed within a 15 min. holding time for Eff-001, EFF-002, and EFF-006 on 1/2/2024 and 2/19/2024, EFF-005 ON 2/19/2024 Violation B Report
1141833 03/06/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.2 SU at EFF-002. Violation B eSMR
1141834 03/06/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-006. Violation B eSMR
1127567 02/19/2024 Deficient Reporting Turbidity Daily Maximum limit is 75 NTU and reported value was 129 NTU at EFF-006. To address the non-compliance items, SPR will consider backwash and or changeout of carbon filter media if/when discharge turbidity for any given event approaches 70 NTU. Violation B eSMR
1127566 02/19/2024 CAT1 Total Suspended Solids (TSS) Daily Maximum limit is 75.0 mg/L and reported value was 90.3 mg/L at EFF-006. To address the non-compliance items, SPR will consider backwash and or changeout of carbon filter media if/when discharge turbidity for any given event approaches 70 NTU. Violation B eSMR
1141925 01/22/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.2 SU at EFF-002. Violation B eSMR
1141881 01/22/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-001. Violation B eSMR
1141926 01/22/2024 OEV pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.4 SU at EFF-006. Violation B eSMR
1127565 01/02/2024 CAT2 Hydrocarbons, Petroleum Daily Maximum limit is 100 ug/L and reported value was 679 ug/L at EFF-002. Sentinel Peak Resources will confer with our contract laboratory concerning laboratory blank sample contamination and will make sure that sample bottles are cleanly managed, and the sample port is kept clean while filling bottles. TPH compliance achieved with the subsequent sample set obtained on January 22 also affirms that the treatment system is working effectively. If the source of non-compliance can be more definitively determined, a plan to eliminate or minimize the potential for non-compliance will also be formulated. Violation B eSMR
1126006 12/31/2023 Deficient Reporting pH and temperature not analyzed within a 15 min. holding time for Eff-001, EFF-002, and EFF-006. Violation B Report
1126008 12/21/2023 Deficient Reporting E. Coli not analyzed once per discharge for Eff-001, EFF-002, and EFF-006 on 12/21/2023 Violation B Report
1126007 12/21/2023 Deficient Reporting Flow was reported as a daily discharge for Eff-001, EFF-002, and EFF-006 on 12/21/2023. Violation B Report
1126005 03/31/2023 Deficient Reporting Asbestos, Methyl Chloride, Tetrachloroethylene, 1,2-trans-Dichloroethylene, 2-Methyl-4,6-Dinitrophenol, 1,2,4-Trichlorobenzene not reported for Eff-001,Eff-002 and EFF-006 once per year. Violation B Report
1116676 03/29/2023 OEV Turbidity Daily Maximum limit is 75 NTU and reported value was 123 NTU at EFF-001. SPR will continue assessing and improving treatment system design to handle everchanging storm conditions and will consider changing to a filter media (i.e., sand) of a smaller size at all discharge locations to capture smaller suspended solids that may have caused the high turbidity readings as reported. Violation B eSMR
1116673 03/29/2023 OEV Turbidity Daily Maximum limit is 75 NTU and reported value was 285 NTU at EFF-006. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116672 03/29/2023 OEV Turbidity Daily Maximum limit is 75 NTU and reported value was 86.8 NTU at EFF-002. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116678 03/29/2023 CAT2 Hydrocarbons, Petroleum Daily Maximum limit is 1000 ug/L and reported value was 1277 ug/L at EFF-006. In anticipation of potentially higher baseline TPH levels in storm water next season, carbon filters will be increased in size at EFF-006. Carbon canisters at all sites will be recharged with fresh carbon prior to the beginning of the 2023-2024 storm season. Violation B eSMR
1116674 03/29/2023 CAT2 Hydrocarbons, Petroleum Daily Maximum limit is 5 lb/day and reported value was 6.134 lb/day at EFF-006. In anticipation of potentially higher baseline TPH levels in storm water next season, carbon filters will be increased in size at EFF-006. Carbon canisters at all sites will be recharged with fresh carbon prior to the beginning of the 2023-2024 storm season. Violation B eSMR
1116679 03/21/2023 CAT1 Total Suspended Solids (TSS) Daily Maximum limit is 75 mg/L and reported value was 78.8 mg/L at EFF-006. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116684 02/24/2023 OEV Turbidity Daily Maximum limit is 75.0 NTU and reported value was 118 NTU at EFF-006. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116683 01/17/2023 OEV Turbidity Daily Maximum limit is 75 NTU and reported value was 102 NTU at EFF-001. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116681 01/17/2023 OEV Turbidity Daily Maximum limit is 75 NTU and reported value was 77.2 NTU at EFF-006. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116682 01/17/2023 OEV Turbidity Daily Maximum limit is 75 NTU and reported value was 97.2 NTU at EFF-002. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116675 01/05/2023 OEV Turbidity Daily Maximum limit is 75 NTU and reported value was 148 NTU at EFF-001. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116677 01/05/2023 OEV Turbidity Daily Maximum limit is 75 NTU and reported value was 212 NTU at EFF-002. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1116680 01/05/2023 CAT1 Settleable Solids Daily Maximum limit is 0.3 ml/L and reported value was 0.5 ml/L at EFF-001. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1125995 01/05/2023 CAT1 Total Suspended Solids (TSS) Daily Maximum limit is 75 mg/L and reported value was 99.7 mg/L at EFF-001. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1125996 01/05/2023 CAT1 Total Suspended Solids (TSS) Daily Maximum limit is 75.0 mg/L and reported value was 158 mg/L at EFF-002. To address the non-compliance item, SPR will make sure that more frequent backwashing of the filters is necessary, and that turbidity is assessed in the recycle flow prior to diverting to the discharge point. Violation B eSMR
1125989 12/31/2022 Deficient Reporting Asbestos not reported for Eff-001 and Eff-002 once per year. 1,2,4 trichlorobenzene for Eff-001 not reported once per year Violation B Report
1125990 12/28/2022 Deficient Reporting pH and temperature not analyzed within a 15 min. holding time for Eff-001. Violation B Report
1091174 12/31/2021 Deficient Reporting Asbestos not reported once per year for Eff-001 and Eff-002 Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 33 Priority Violations: 0
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.
Violation Types
CAT1 = Category 1 Pollutant (Effluent Violation for Group 1 Pollutant) CAT2 = Category 2 Pollutant (Effluent Violation for Group 2 Pollutant)
Deficient Reporting = Deficient Reporting OEV = Other Effluent Violation
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
461336 Expedited Payment Letter R4-2025-0150 05/01/2025 Active
456701 Admin Civil Liability R4-2024-0179 07/31/2024 Historical
443924 Admin Civil Liability R4-2021-0100 10/19/2021 Historical
435255 Admin Civil Liability R4-2019-0120 03/03/2020 Historical
419563 Time Schedule Order R4-2018-0021 04/01/2018 Active
409889 Admin Civil Liability R4-2016-0298 11/30/2016 Historical
399429 Admin Civil Liability R4-2015-0002 03/23/2015 Historical
389233 Time Schedule Order R4-2013-0022 03/09/2013 Historical
358118 Admin Civil Liability SWB-2008-4-0065 07/15/2009 Historical
Total Enf Actions: 9
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
56059644 B Type compliance inspection Barbara Guia 02/27/2024 N 0 Download
48085600 B Type compliance inspection Barbara Guia 06/07/2022 N 0 Download
44435209 B Type compliance inspection Barbara Guia 05/12/2021 N 0 Download
36779498 B Type compliance inspection Jose Morales 12/04/2019 Y 0 Download
29879555 B Type compliance inspection Jose Morales 05/16/2018 Y 0 Download
32069275 Prerequirement inspection Jau Ren Chen 09/29/2017 N 0 [Attachments]
26400053 B Type compliance inspection Jose Morales 03/08/2017 Y 0 N/A
22537718 A Type compliance inspection Jose Morales 11/19/2015 Y 0 Download
13353585 A Type compliance inspection Jose Morales 11/15/2013 Y 0 Download
12364050 Prerequirement inspection Jau Ren Chen 02/06/2013 Y 0 [Attachments]
330456 B Type compliance inspection Jose Morales 02/26/2003 Y 0 N/A
276562 B Type compliance inspection David B Rasmussen 08/17/2000 Y 0 N/A
Total Inspections: 12 Last Inspection: 02/27/2024
  
The current report was generated with data as of: 06/26/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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