Welcome to California
California Home
Welcome to California - images of Golden Gate Bridge, ocean sunset, waterfall, flowers, and city skyline California Home Welcome to the California Environmental Protection Agency
California Integrated Water Quality System Project (CIWQS)
   Party At-A-Glance Report

  
   [VIEW PRINTER FRIENDLY VERSION] [EXPORT THIS REPORT TO EXCEL]

  
  
  
  
  
General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
637218 852 N Knoll LLC Privately-Owned Business 3831 Lost Springs Drive Calabasas, CA 91301 818-314-8444 guybenshushan@gmail.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
885915 852 NW Knoll Dr Los Angeles 4 Domestic Site NEC Owner and Operator 02/03/2023 None
Total Related Places: 1
  
  
  
  
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?
450981 Enrollee - NPDES 4 4B198903147 Historical NPDNONMUNIPRCS R4-2018-0125 01/19/2023 06/18/2025 Discharger 02/03/2023 None N
Total Regulatory Measures: 1
  
  
  
  
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.
1132105 09/04/2024 Late Report The 2Q24 report was past due by 21 days. Violation N Report 852 NW Knoll Dr 450981 R4-2018-0125 N
1132104 06/30/2024 Deficient Monitoring Lead, Zinc, and E. Coli were not sampled and did not meet the quarterly monitoring requirements. Violation N Report 852 NW Knoll Dr 450981 R4-2018-0125 N
1130137 02/12/2024 CAT2 Tetrachloroethene Maximum Daily (MDEL) limit is 5.0 ug/L and reported value was 110 ug/L. Violation N Report 852 NW Knoll Dr 450981 R4-2018-0125 Y
1130134 05/24/2024 Late Report 1Q24 report was past due by 9 days. Violation N Report 852 NW Knoll Dr 450981 R4-2018-0125 N
1124916 12/31/2023 Deficient Reporting Missing Acute Toxicity annual frequency result for 2023 Violation N Report 852 NW Knoll Dr 450981 R4-2018-0125 N
1124358 02/21/2024 Late Report 4Q23 Report was submitted late by 7 days. Violation N Report 852 NW Knoll Dr 450981 R4-2018-0125 N
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: 6
*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
458548 Admin Civil Liability R4-2024-0355 ACL R4-2024-0355 for 852 N Knoll LLC NPDNONMUNIPRCS 02/05/2025 Historical
Total Enforcement Actions: 1
  
  
  
  
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: 01/02/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
Back to Main Page  |  Back to Top of Page

Conditions of Use | Privacy Policy
Copyright © 2024 State of California

The Board is one of six boards, departments, and offices under
the umbrella of the California Environmental Protection Agency.
Cal/EPA | ARB | DPR | DTSC | OEHHA | SWRCB