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   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
19392 Granite Rock Company Privately-Owned Business Po Box 50001 Watsonville, CA 95077-5001 831-768-2094(+) None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
263171 Granite Rock Tennant Avenue Slurry Santa Clara 3 Sand and Gravel Mining Owner 07/29/2004 None
227770 Granite Rock Arthur Wilson Quarry San Benito 3 Sand and Gravel Mining Owner 05/18/1984 None
251100 Quail Hollow Sand Quarry Santa Cruz 3 Sand and Gravel Mining Owner 10/11/1974 None
252078 Recycling/Settling Ops Monterey 3 Facility Owner 04/09/2001 None
227771 Granite Rock Southside #1540 San Benito 3 Sand and Gravel Mining Owner 03/08/1991 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
488919 Samuel LoForti Person Data Submitter 10/16/2008 None None
650096 Nathaniel Yocum Person Data Submitter 03/27/2025 None None
316799 Tina Lau Person Data Submitter 05/17/2006 None None
606065 Joshua Basanese Person Data Submitter 01/23/2020 None None
633874 Francesca Giannotta Person Data Submitter 06/20/2022 None None
576046 Ashlyn Wenger Person Data Submitter 04/17/2018 None None
227277 Aaron Johnston-Karas Person Legally Responsible Official 04/09/2001 None None
545092 Reed Carter Person Legally Responsible Official 01/27/2014 None None
607783 Amy Nama Person Data Submitter 03/24/2020 None None
Total Related Parties: 9
  
  
  
  
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?
260472 Letter 3 None Historical NPDMINING 1 None 03/01/2000 Discharger 09/09/1999 None N
259852 Letter 3 None Historical WDR LT940304 None 03/04/1994 Discharger 03/04/1994 None N
143249 WDR 3 3 442006001 Historical WDR 84-003 01/20/1984 None Discharger 01/20/1984 None N
143525 WDR 3 3 442006001 Historical WDR 74-096 10/11/1974 None Discharger 10/11/1974 None N
143783 WDR 3 3 442006001 Historical WDR 88-151 11/18/1988 None Discharger 11/18/1988 None N
146936 WDR 3 3 442006001 Active WDRMINING 94-046 06/03/1994 None Discharger 06/03/1994 None N
186254 Enrollee 3 3 430804229 Historical WDRNONMUNIPRCS R3-2014-0041 07/29/2004 07/28/2006 Discharger 09/01/2005 None N
296608 WDR 3 3 352000003 Active WDRMINING R3-2005-0063 07/08/2005 None Discharger 03/08/1991 None N
145141 WDR 3 3 352000003 Historical WDR 91-025 03/08/1991 07/06/2005 Discharger 03/08/1991 None N
146937 NPDES Permit 3 3 352000001 Historical NPDMINING 94-047 07/08/1994 05/18/2000 Discharger 07/08/1994 None N
134029 NPDES Permit 3 3 352000001 Historical NPDMINING R3-2005-0044 07/02/2005 01/27/2011 Discharger 05/13/2005 None N
143265 NPDES Permit 3 3 352000001 Historical NPDMINING 84-034 05/18/1984 07/07/1989 Discharger 05/18/1984 None N
144149 NPDES Permit 3 3 352000001 Historical NPDMINING 89-102 07/07/1989 07/08/1994 Discharger 07/07/1989 None N
147670 NPDES Permit 3 3 352000001 Historical NPDMINING 00-007 05/19/2000 05/12/2005 Discharger 05/19/2000 None N
418028 NPDES Permit 3 3 352000001 Active NPDMINING R3-2017-0027 12/01/2017 None Discharger 12/15/2017 None N
380185 NPDES Permit 3 3 352000001 Historical NPDMINING R3-2010-0025 01/28/2011 11/30/2017 Discharger 07/11/2011 None N
131191 Waiver 3 3 270104009 Historical WDR 01-173 04/23/2001 None Discharger 04/23/2001 None N
Total Regulatory Measures: 17
  
  
  
  
Expand/Contract Violations
Violations within the past year
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.
1142953 03/31/2025 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported val Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1143553 04/30/2025 CAT1 Aluminum, Total Recoverable Monthly Average limit is 1000 ug/L and reported valu Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1142952 03/31/2025 CAT2 Molybdenum, Total Monthly Average limit is 10 ug/L and reported value was 12 ug/ Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1141783 02/28/2025 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported val Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1143550 04/30/2025 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported val Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1143552 04/30/2025 CAT2 Molybdenum, Total Recoverable Monthly Average limit is 10 ug/L and reported valu Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1137705 12/03/2024 Late Report Monthly SMR ( MONNPDES ) report for October 2024 (2869155) was due on 02-DEC-24 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1143778 04/30/2025 CAT2 Copper, Total Recoverable Monthly Average limit is 12.0 ug/L and reported value Violation None eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1143554 04/03/2025 CAT2 Copper, Total Recoverable Daily Maximum limit is 24 ug/L and reported value was Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1147214 09/02/2025 Late Report Monthly SMR ( MONNPDES ) report for July 2025 (2987630) was due on 01-SEP-25 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1141784 02/28/2025 CAT2 Molybdenum, Total Monthly Average limit is 10 ug/L and reported value was 12 ug/ Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1143551 04/30/2025 CAT1 Iron, Total Recoverable Monthly Average limit is 1000 ug/L and reported value wa Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1148600 01/21/2025 Late Report Failure to submit annual monitoring report for 2024. Violation N Report Granite Rock Southside #1540 296608 R3-2005-0063 Y
1148651 10/02/2025 Late Report Failure to submit annual monitoring report for 2025. Violation None Report Quail Hollow Sand Quarry 146936 94-046 Y
Report defaults to display violations within the last year. Click here to see last five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 14
*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
434444 Notice of Violation None NOV 09/24/2019 for Granite Rock Company Arthur Wilson Quarry NPDMINING 09/24/2019 Active
456781 Admin Civil Liability R3-2024-0032 ACL R3-2024-0032 for Granite Rock Company NPDMINING 07/09/2024 Historical
446972 Admin Civil Liability R3-2022-0030 ACL R3-2022-0030 for Granite Rock Company NPDMINING 05/17/2022 Historical
395104 Oral Communication None Oral Com 02/26/2014 for Granite Rock Co NPDMINING 02/26/2014 Historical
436326 Staff Enforcement Letter None SEL 09/12/2019 for Granite Rock Company WDRMINING 09/12/2019 Historical
255844 Notice of Violation UNKNOWN Enforcement - 3 352000001 NPDMINING 12/29/2004 Historical
244267 Notice of Violation UNKNOWN Enforcement - 3 352000001 NPDMINING 03/17/2003 Historical
249709 Staff Enforcement Letter UNKNOWN Enforcement - 3 352000001 NPDMINING 03/23/2005 Historical
463075 Notice of Violation None NOV 10/27/2025 for Granite Rock Company Quail Hollow Sand Quarry WDRMINING 10/27/2025 Historical
433566 Staff Enforcement Letter None SEL 08/14/2019 for Granite Rock Company Arthur Wilson Quarry NPDMINING 08/14/2019 Historical
436331 Staff Enforcement Letter None SEL 09/12/2019 for Granite Rock Company WDRMINING 09/12/2019 Historical
417932 Notice of Violation None NOV & 13267 Order 08/03/2017 for Granite Rock Company Quail Hollow Sand Quarry WDRMINING 08/03/2017 Historical
461542 Admin Civil Liability R3-2025-0051 ACL R3-2025-0051 for Granite Rock Company NPDMINING 09/04/2025 Historical
249710 Staff Enforcement Letter UNKNOWN Enforcement - 3 352000001 NPDMINING 03/23/2005 Historical
409404 Admin Civil Liability R3-2016-0046 ACL R3-2016-0046 for Granite Rock Company NPDMINING 12/02/2016 Historical
423490 Admin Civil Liability R3-2018-0046 ACL R3-2018-0046 for Granite Rock Company NPDMINING 11/06/2018 Historical
463065 Notice of Violation None NOV 10/24/2025 for Granite Rock Company Southside #1540 WDRMINING 10/24/2025 Historical
Total Enforcement Actions: 17
  
  
  
  
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: 11/12/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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