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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
252078 Recycling/Settling Ops Monterey 3 Facility Owner 04/09/2001 None
251100 Quail Hollow Sand Quarry Santa Cruz 3 Sand and Gravel Mining Owner 10/11/1974 None
227771 Granite Rock Southside #1540 San Benito 3 Sand and Gravel Mining Owner 03/08/1991 None
227770 Granite Rock Arthur Wilson Quarry San Benito 3 Sand and Gravel Mining Owner 05/18/1984 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
650096 Nathaniel Yocum Person Data Submitter 03/27/2025 None None
633874 Francesca Giannotta Person Data Submitter 06/20/2022 None None
607783 Amy Nama Person Data Submitter 03/24/2020 None None
606065 Joshua Basanese Person Data Submitter 01/23/2020 None None
576046 Ashlyn Wenger Person Data Submitter 04/17/2018 None None
545092 Reed Carter Person Legally Responsible Official 01/27/2014 None None
488919 Samuel LoForti Person Data Submitter 10/16/2008 None None
316799 Tina Lau Person Data Submitter 05/17/2006 None None
227277 Aaron Johnston-Karas Person Legally Responsible Official 04/09/2001 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?
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
296608 WDR 3 3 352000003 Active WDRMINING R3-2005-0063 07/08/2005 None Discharger 03/08/1991 None N
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
186254 Enrollee 3 3 430804229 Historical WDRNONMUNIPRCS R3-2014-0041 07/29/2004 07/28/2006 Discharger 09/01/2005 None N
147670 NPDES Permit 3 3 352000001 Historical NPDMINING 00-007 05/19/2000 05/12/2005 Discharger 05/19/2000 None N
146937 NPDES Permit 3 3 352000001 Historical NPDMINING 94-047 07/08/1994 05/18/2000 Discharger 07/08/1994 None N
146936 WDR 3 3 442006001 Active WDRMINING 94-046 06/03/1994 None Discharger 06/03/1994 None N
145141 WDR 3 3 352000003 Historical WDR 91-025 03/08/1991 07/06/2005 Discharger 03/08/1991 None N
144149 NPDES Permit 3 3 352000001 Historical NPDMINING 89-102 07/07/1989 07/08/1994 Discharger 07/07/1989 None N
143783 WDR 3 3 442006001 Historical WDR 88-151 11/18/1988 None Discharger 11/18/1988 None N
143525 WDR 3 3 442006001 Historical WDR 74-096 10/11/1974 None Discharger 10/11/1974 None N
143265 NPDES Permit 3 3 352000001 Historical NPDMINING 84-034 05/18/1984 07/07/1989 Discharger 05/18/1984 None N
143249 WDR 3 3 442006001 Historical WDR 84-003 01/20/1984 None Discharger 01/20/1984 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
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 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.
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
1148650 10/02/2024 Late Report Failure to submit annual monitoring report for 2024. Violation None Report Quail Hollow Sand Quarry 146936 94-046 Y
1148649 10/02/2023 Late Report Failure to submit annual monitoring report for 2023. Violation None Report Quail Hollow Sand Quarry 146936 94-046 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
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
1143778 04/30/2025 CAT2 Copper, Total Recoverable Monthly Average limit is 12.0 ug/L and reported value was 31.0 ug/L at M-001. 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 31 ug/L at M-001. 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 value was 1900 ug/L at M-001. 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 value was 13 ug/L at M-001. 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 was 1600 ug/L at M-001. 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 value was 5700 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1142953 03/31/2025 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported value was 2000 mg/L at M-001. 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/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1141784 02/28/2025 CAT2 Molybdenum, Total Monthly Average limit is 10 ug/L and reported value was 12 ug/L at M-001. 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 value was 1850 mg/L at M-001. 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
1132056 09/03/2024 Late Report Monthly SMR ( MONNPDES ) report for July 2024 (2839513) was due on 02-SEP-24 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1130870 08/02/2024 Late Report Monthly SMR ( MONNPDES ) report for June 2024 (2829804) was due on 01-AUG-24 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1129522 07/02/2024 Late Report Monthly SMR ( MONNPDES ) report for May 2024 (2819118) was due on 01-JUL-24 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1129117 01/20/2024 Late Report Late Report Violation N Report Granite Rock Southside #1540 296608 R3-2005-0063 N
1129116 01/20/2023 Late Report Late Report Violation N Report Granite Rock Southside #1540 296608 R3-2005-0063 N
1129115 01/20/2022 Late Report Late Report Violation N Report Granite Rock Southside #1540 296608 R3-2005-0063 N
1128211 04/30/2024 CAT2 Molybdenum, Total Recoverable Monthly Average limit is 10 ug/L and reported value was 17.1 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1128210 04/30/2024 CAT1 Aluminum, Total Recoverable Monthly Average limit is 1000 ug/L and reported value was 3400 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1128209 04/30/2024 CAT1 Iron, Total Recoverable Monthly Average limit is 1000 ug/L and reported value was 2500 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1128208 04/30/2024 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported value was 2070 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1126787 01/31/2022 CAT1 Nitrogen, Total (as N) Monthly Average limit is 8 mg/L and reported value was 10 mg/L at M-001. Violation None eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1126551 03/31/2024 CAT2 Molybdenum, Total Monthly Average limit is 10.0 ug/L and reported value was 16 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1126550 03/31/2024 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported value was 1910 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1125433 02/29/2024 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported value was 1390 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1125432 02/29/2024 CAT2 Molybdenum, Total Monthly Average limit is 10.0 ug/L and reported value was 12 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1125431 02/29/2024 CAT1 Aluminum, Total Monthly Average limit is 1000 ug/L and reported value was 1400 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1124725 01/31/2024 CAT2 Molybdenum, Total Monthly Average limit is 10.0 ug/L and reported value was 14 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1124724 01/31/2024 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000.0 mg/L and reported value was 1830.0 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1120995 10/03/2023 Late Report Monthly SMR ( MONNPDES ) report for August 2023 (2727561) was due on 02-OCT-23 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1118483 07/04/2023 Late Report Monthly SMR ( MONNPDES ) report for May 2023 (2696492) was due on 03-JUL-23 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1116256 03/31/2023 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported value was 1640 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1116255 03/31/2023 CAT2 Copper, Total Recoverable Monthly Average limit is 12 ug/L and reported value was 16 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1116254 03/31/2023 CAT1 Aluminum, Total Monthly Average limit is 1000 ug/L and reported value was 1100 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1115145 02/28/2023 CAT1 Aluminum, Total Recoverable Monthly Average limit is 1000.0 ug/L and reported value was 1500.0 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1115144 02/28/2023 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported value was 2610 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1115143 02/28/2023 CAT2 Molybdenum, Total Recoverable Monthly Average limit is 10.0 ug/L and reported value was 17 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1114105 01/31/2023 CAT1 Iron, Total Monthly Average limit is 1000 ug/L and reported value was 1300 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1114104 01/31/2023 CAT1 Aluminum, Total Monthly Average limit is 1000.0 ug/L and reported value was 1900.0 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1114103 01/31/2023 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported value was 1240 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1112780 12/31/2022 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000 mg/L and reported value was 1885 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1112779 12/31/2022 CAT2 Molybdenum, Total Recoverable Monthly Average limit is 10.0 ug/L and reported value was 14 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1109374 10/04/2022 Late Report Monthly SMR ( MONNPDES ) report for August 2022 (2009165) was due on 03-OCT-22 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1107104 08/02/2022 Late Report Monthly SMR ( MONNPDES ) report for June 2022 (2009163) was due on 01-AUG-22 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1103073 04/02/2022 Late Report Once Per 5 Years SMR ( MONNPDES ) (Receiving water 1x/permit) report for 2017 (2009256) was due on 01-APR-22 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1101389 01/31/2022 CAT2 Bis (2-Ethylhexyl) Phthalate Monthly Average (Mean) limit is 1.8 ug/L and reported value was 2.1 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1101388 01/31/2022 CAT2 Molybdenum, Total Recoverable Monthly Average (Mean) limit is 10.0 ug/L and reported value was 12 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1101387 01/31/2022 CAT1 Total Dissolved Solids (TDS) Monthly Average (Mean) limit is 1000.0 mg/L and reported value was 1800 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1101386 12/31/2021 CAT2 Molybdenum, Total Recoverable Monthly Average (Mean) limit is 10.0 ug/L and reported value was 12.0 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1101385 12/31/2021 CAT2 Bis (2-Ethylhexyl) Phthalate Monthly Average (Mean) limit is 1.8 ug/L and reported value was 3.25 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1101384 12/31/2021 CAT1 Total Dissolved Solids (TDS) Monthly Average (Mean) limit is 1000 mg/L and reported value was 1750 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1100637 02/02/2022 Late Report Monthly SMR ( MONNPDES ) report for December 2021 (2009157) was due on 01-FEB-22 *** MMP Exempt Reason:Discharger initiated submittal on time but was prevented from completing it due to DMR-related problems in CIWQS and beyond the discharger's control. Discharger emailed NPDES permitting staff on 2/2/22 regarding the problem, but was not able to get help from CIWQS staff until late February. Permitting and enforcement staff provided guidance throughout February. Enforcement Unit does not recommend enforcement. Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1096522 11/02/2021 Late Report Monthly SMR ( MONNPDES ) report for September 2021 (2009154) was due on 01-NOV-21 Violation None Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1087003 01/31/2021 CAT2 Molybdenum, Total Recoverable Monthly Average limit is 10.0 ug/L and reported value was 13.0 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1087002 01/31/2021 CAT1 Aluminum, Total Recoverable Monthly Average limit is 1000.0 ug/L and reported value was 1100.0 ug/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1087001 01/31/2021 CAT1 Total Dissolved Solids (TDS) Monthly Average limit is 1000.0 mg/L and reported value was 1500.0 mg/L at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 Y
1087000 01/28/2021 OEV pH Instantaneous Minimum limit is 7.0 SU and reported value was 6.5 SU at M-001. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N
1086999 01/28/2021 Deficient Monitoring Nitrate/Nitrite analysis was not performed by lab. Violation N eSMR Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 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: 63
*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
463075 Notice of Violation None NOV 10/27/2025 for Granite Rock Company Quail Hollow Sand Quarry WDRMINING 10/27/2025 Historical
463065 Notice of Violation None NOV 10/24/2025 for Granite Rock Company Southside #1540 WDRMINING 10/24/2025 Historical
461542 Admin Civil Liability R3-2025-0051 ACL R3-2025-0051 for Granite Rock Company NPDMINING 09/04/2025 Historical
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
436331 Staff Enforcement Letter None SEL 09/12/2019 for Granite Rock Company WDRMINING 09/12/2019 Historical
436326 Staff Enforcement Letter None SEL 09/12/2019 for Granite Rock Company WDRMINING 09/12/2019 Historical
434444 Notice of Violation None NOV 09/24/2019 for Granite Rock Company Arthur Wilson Quarry NPDMINING 09/24/2019 Active
433566 Staff Enforcement Letter None SEL 08/14/2019 for Granite Rock Company Arthur Wilson Quarry NPDMINING 08/14/2019 Historical
423490 Admin Civil Liability R3-2018-0046 ACL R3-2018-0046 for Granite Rock Company NPDMINING 11/06/2018 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
409404 Admin Civil Liability R3-2016-0046 ACL R3-2016-0046 for Granite Rock Company NPDMINING 12/02/2016 Historical
395104 Oral Communication None Oral Com 02/26/2014 for Granite Rock Co NPDMINING 02/26/2014 Historical
255844 Notice of Violation UNKNOWN Enforcement - 3 352000001 NPDMINING 12/29/2004 Historical
249710 Staff Enforcement Letter UNKNOWN Enforcement - 3 352000001 NPDMINING 03/23/2005 Historical
249709 Staff Enforcement Letter UNKNOWN Enforcement - 3 352000001 NPDMINING 03/23/2005 Historical
244267 Notice of Violation UNKNOWN Enforcement - 3 352000001 NPDMINING 03/17/2003 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: 11/14/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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