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California Integrated Water Quality System Project (CIWQS)
   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
50267 Waste Management of California Privately-Owned Business Po Box 4040 Palmdale, CA 93590-4040 661-223-3427 None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
822030 Lancaster Sanitary LF & Recycling Center Los Angeles 6B Land fill Owner 02/16/2016 None
778005 Antelope Valley Public Landfill Los Angeles 6B Land fill Owner 02/27/2012 None
236375 Lancaster LF & GW Trtmt Dschrg Los Angeles 6B Land fill Operator 01/11/1979 None
236375 Lancaster LF & GW Trtmt Dschrg Los Angeles 6B Land fill Owner 08/24/2020 None
205889 Antelope Valley Recycling # 1 Los Angeles 6B Land fill Owner 05/24/1973 None
Total Related Places: 5
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
Total Related Parties: 0
  
  
  
  
Expand/Contract Regulatory Measures
Regulatory Measures (non-enforcement)
Reg. Measure ID Regulatory Measure Type Region WDID Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Amended?
442776 Enrollee - WDR 6V 6B190343001 Historical LNDISPOTH 2020-0004-DWQ 03/26/2021 11/29/2022 Discharger 04/01/2021 None N
442775 Enrollee - WDR 6V 6B190343001 Historical LNDISPOTH 2020-0004-DWQ 03/02/2021 11/29/2022 Discharger 04/01/2021 None N
442774 Enrollee - WDR 6V 6B191112004 Historical LNDISPOTH 2020-0004-DWQ 03/23/2021 04/13/2022 Discharger 04/01/2021 None N
442773 Enrollee - WDR 6V 6B191112004 Historical LNDISPOTH 2020-0004-DWQ 03/02/2021 03/24/2023 Discharger 04/01/2021 None N
441587 Enrollee - WDR 6V 6B191112004 Historical LNDISPOTH 2020-0004-DWQ 12/11/2020 03/24/2023 Discharger 12/11/2020 None N
441586 Enrollee - WDR 6V 6B190343001 Historical LNDISPOTH 2020-0004-DWQ 12/11/2020 11/29/2022 Discharger 12/11/2020 None N
439903 Co-Permitee SB 6B191112004 Active SLIC 2019-0006-DWQ 03/20/2019 None Discharger 08/24/2020 None N
439902 Co-Permitee SB 6B190343001 Active SLIC 2019-0006-DWQ 03/20/2019 None Discharger 08/24/2020 None N
404698 WDR 6V 6B190343001 Active LFOPER R6V-2016-0037 06/08/2016 None Discharger 02/16/2016 None N
383527 WDR 6V 6B191112004 Active LFOPER R6V-2012-0042 06/14/2012 None Discharger 02/27/2012 None N
147883 WDR 6V 6B190343001 Historical LNDISP 79-010 01/11/1979 None Discharger 01/11/1979 None N
147361 WDR 6V 6B190335001 Historical LNDISP 73-052 05/24/1973 None Discharger 05/24/1973 None N
146864 WDR 6V 6B190335001 Historical LNDISP 95-119 11/09/1995 None Discharger 11/09/1995 None Y
146824 WDR 6V 6B190343001 Historical LNDISP 95-103A1 02/06/1997 06/13/2000 Discharger 02/06/1997 None N
146823 WDR 6V 6B190343001 Historical LNDISP 95-103 09/14/1995 06/13/2000 Discharger 09/14/1995 None N
146206 WDR 6V 6B190335001 Historical LNDISP 93-10028 09/09/1993 None Discharger 09/09/1993 None N
146140 WDR 6V 6B190343001 Historical LNDISP 92-007A1 05/14/1992 None Discharger 05/14/1992 None N
146139 WDR 6V 6B190343001 Historical LNDISP 92-007 02/13/1992 None Discharger 02/13/1992 None N
146118 WDR 6V 6B190343001 Historical LNDISP 87-011 01/09/1987 None Discharger 01/09/1987 None N
145749 WDR 6V 6B190335001 Historical LNDISP 84-052 05/11/1984 None Discharger 05/11/1984 None N
140414 WDR 6V 6B190343001 Historical LFOPER 00-055 06/14/2000 06/08/2016 Discharger 06/14/2000 None Y
Total Regulatory Measures: 21
  
  
  
  
Expand/Contract Violations
Violations within the past five years
Violation ID Occurrence Date Violation Type Violation Description(-) Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked to Enf.
1143416 02/13/2025 Order Conditions Violation of Board Order R6V-2012-0042, Monitoring and Reporting Program Section III.E., failure to maintain good housekeeping, e.g., trash debris, oil and grease. Violation None Inspection Antelope Valley Public Landfill 383527 R6V-2012-0042 Y
1143414 02/13/2025 Other Codes Violation of Water Code Sections 13260, 13264(a), and 13377, 401 Certification Dredge/Fill Program: Failure to obtain a permit for any modifications to create and/or maintain the roadway through Anaverde Creek. The vehicles driving in Anaverde Creek, a natural drainage channel/ephemeral stream, pose potential risks to water quality and surrounding ecosystems as vehicles can discharge oils, greases, and other chemicals into the waterway. Additionally, vehicles can disrupt the flow of water causing turbulent waters that result in erosion. All temporary and permanent impacts to a Water of the State require the filing of a report of waste discharge for a dredge or fill permit. Violation None Inspection Antelope Valley Public Landfill 383527 R6V-2012-0042 Y
1143413 02/13/2025 Order Conditions Violation of Board Order R6V-2012-0042, Section II.G.5,? Storm water run-off within the Landfill shall either be contained on-site or be discharged in accordance with applicable storm water regulations. Storm water will be kept from running on site and will be diverted around the Landfill to Anaverde Creek.? The Landfill is not being operated or maintained with the applicable stormwater regulations as the discharge of contaminated storm water from the Landfill was observed on February 13, 2025, and was discharged to Anaverde Creek, a Water of the State. Violation None Inspection Antelope Valley Public Landfill 383527 R6V-2012-0042 Y
1143411 02/13/2025 Order Conditions Violation of Board Order R6V-2012-0042, Section I.B, ?No wastewater of storm water shall leave the Landfill except as (1) either permitted by a NPDES industrial stormwater permit issued in accordance with the federal Clean Water Act (CWA) and the Porter-Cologne Water Quality Control Act (commencing with the Water Code section 13000) or (2) the Discharger must submit an amended RWD that requests revising the WDR with applicable surface water discharge specifications. The Discharger shall maintain and modify, as necessary, the storm water pollution prevention plan develop for the Landfill.? The Industrial General Permit was terminated without the Discharger providing an amended RWD requesting the revision of the WDR. Violation None Inspection Antelope Valley Public Landfill 383527 R6V-2012-0042 Y
1127306 08/11/2023 Groundwater Exceeded PQL of 1,1-Dichloroethane, Dichlorodifluoromethane, Tetrachloroethene (PCE), and Trichloroethene (TCE). Violates Board Order R6V-2016-0037 MRP II.A.3.b.ii. Violation N Report Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
1127305 02/10/2023 Groundwater Exceeded PQL of 1,1-Dichloroethane, Dichlorodifluoromethane, Methane, Tetrachloroethene (PCE), and Trichloroethene (TCE). Violates Board Order R6V-2016-0037 MRP II.A.3.b.ii. Violation N Report Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
1127304 09/01/2022 Groundwater (1) Exceeded statistical limits of Barium and Sodium. Violates Board Order R6V-2016-0037 MRP II.A.3.b.i. (2) Exceeded PQL of 1,1-Dichloroethane, Chloromethane, Dichlorodifluoromethane, Methane, Tetrachloroethene (PCE), and Trichloroethene (TCE). Violates Board Order R6V-2016-0037 MRP II.A.3.b.ii. Violation N Report Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
1127303 01/17/2022 Groundwater (1) Exceeded statistical limits of Bicarbonate Alkalinity as CACO3 and Sodium. Violates Board Order R6V-2016-0037 MRP II.A.3.b.i. (2) Exceeded PQL of 1,1-Dichloroethane, cis-1,2-Dichloroethene, Dichlorodifluoromethane, Tetrachloroethene (PCE), and Trichloroethene (TCE). Violates Board Order R6V-2016-0037 MRP II.A.3.b.ii. Violation N Report Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
1127301 09/15/2021 Groundwater Exceeded PQL of 1,1-Dichloroethane, cis-1,2-Dichloroethene, Dichlorodifluoromethane, Tetrachloroethene (PCE), and Trichloroethene (TCE). Violates Board Order R6V-2016-0037 MRP II.A.3.b.ii. Violation N Report Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
1127297 02/19/2021 Groundwater Exceeded PQL of 1,1-Dichloroethane, cis-1,2-Dichloroethene, Dichlorodifluoromethane, Methane, Tetrachloroethene (PCE), Trichloroethene (TCE), and Trichlorofluoromethane. Violates Board Order R6V-2016-0037 MRP II.A.3.b.ii. Violation N Report Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
1126133 02/08/2023 Groundwater Exceeded Concentration Limits of Barium and Total Organic Carbon during the 2023 1st Half Monitoring Period. Violated R6V-2012-0042 WDR II.A.11 and MRP III.B.5.a. Violation N Report Antelope Valley Public Landfill 383527 R6V-2012-0042 Y
1117944 08/31/2022 Groundwater (1) Exceeded Concentration Limits of Total Organic Carbon during the 2022 2nd Half Monitoring Period. Violated R6V-2012-0042 WDR II.A.11 and MRP III.B.5.a. (2) Exceeded two-non-naturally occurring waste constituents above MDL, 1,1-Dichloroethane, cis-1, 2-Dichloroethene, Dichlorodifluoromethane during the 2022 2nd Half Monitoring Period. Violated R6V-2012-0042 WDR II.F.2. and MRP III.B.5. b. Violation N Report Antelope Valley Public Landfill 383527 R6V-2012-0042 N
1117943 02/14/2022 Deficient Monitoring (1) A sample of soil gas monitoring points with a gas concentration over 5% Methane were not collected during the 2022 1st quarter monitoring period. Violated R6V-2012-0042 MRP III.D. Violation N Report Antelope Valley Public Landfill 383527 R6V-2012-0042 N
1117942 02/16/2022 Groundwater (1) Exceeded Concentration Limits of Total Organic Carbon during the 2022 1st Half Monitoring Period. Violated R6V-2012-0042 WDR II.A.11 and MRP III.B.5.a. (2) Exceeded two-non-naturally occurring waste constituents above MDL, 1,1-Dichloroethane, cis-1, 2-Dichloroethene, Dichlorodifluoromethane during the 2022 1st Half Monitoring Period. Violated R6V-2012-0042 WDR II.F.2. and MRP III.B.5. b. Violation N Report Antelope Valley Public Landfill 383527 R6V-2012-0042 N
1114612 03/10/2023 Order Conditions Ponding on the southern and western roadways and site boundaries of the site is inconsistent with the site drainage plan and Stormwater Pollution and Prevention Plan and is a violation of Section III.A.13 & Section V.E.e.II.2 of the Board Order. Observations of ponding water were observed on January 3, 2023 and March 10, 2023. Violation N Inspection Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
1114611 03/10/2023 Order Conditions Palm trees observed growing in Landfill cover in January 3, 2023 and on March 10th, 2023. Water Board staff commented to WM trees should not be growing in interim cover. March 2023 inspection palm trees were observed to concentrate storm water flow and runoff and resulted in erosion of interim cover, which is a violation of Section III.A.12 of Board Order. Violation N Inspection Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
1114610 03/10/2023 Order Conditions Windblown litter off site is a violation of Section III.A.4 of the Board Order. While conducting inspection a significant amount of windblown trash was piling up along fence line and was blowing to adjacent properties. Violation N Inspection Lancaster Sanitary LF & Recycling Center 404698 R6V-2016-0037 Y
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 17
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
  
  
  
  
Expand/Contract Enforcement Actions
Enforcement Actions
Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status
461054 Notice of Violation R6V-2012-0042 NOV R6V-2012-0042 for Waste Management of California LFOPER 06/13/2025 Active
457163 Oral Communication None Email 06/03/2024 Violation Notification 2020-2023 LFOPER 06/03/2024 Historical
456801 Oral Communication None 05/06/2024 Email Violation Notification LFOPER 05/06/2024 Historical
451966 Oral Communication None Oral Com 03/13/2023 for Waste Management of California LFOPER 03/13/2023 Historical
426195 Oral Communication None Oral Com 11/06/2018 for Waste Management of California LFOPER 11/06/2018 Historical
388684 Oral Communication UNKNOWN Oral Communication (11-21-2012) - 6B190343001 LFOPER 11/21/2012 Historical
374232 13267 Letter R6V-2010-0020 Investigative Order 13267 - 6B190343001 (5/12/2010) LFOPER 05/12/2010 Historical
255906 Staff Enforcement Letter UNKNOWN Enforcement - 6B190343001 LFOPER 04/07/2005 Historical
239194 Oral Communication UNKNOWN Enforcement - 6B190335001 LNDISP 12/04/2001 Historical
Total Enforcement Actions: 9
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
Total Regulatory Measures linked to Related Parties: 0
  
  
The current report was generated with data as of: 11/11/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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