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(+) null 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 null 227770 Granite Rock Arthur Wilson Quarry San Benito 3 Sand and Gravel Mining Owner 05/18/1984 null 251100 Quail Hollow Sand Quarry Santa Cruz 3 Sand and Gravel Mining Owner 10/11/1974 null 227771 Granite Rock Southside #1540 San Benito 3 Sand and Gravel Mining Owner 03/08/1991 null 252078 Recycling/Settling Ops Monterey 3 Facility Owner 04/09/2001 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 316799 Tina Lau Person Data Submitter 05/17/2006 null null 488919 Samuel LoForti Person Data Submitter 10/16/2008 null null 545092 Reed Carter Person Legally Responsible Official 01/27/2014 null null 650096 Nathaniel Yocum Person Data Submitter 03/27/2025 null null 606065 Joshua Basanese Person Data Submitter 01/23/2020 null null 633874 Francesca Giannotta Person Data Submitter 06/20/2022 null null 576046 Ashlyn Wenger Person Data Submitter 04/17/2018 null null 607783 Amy Nama Person Data Submitter 03/24/2020 null null 227277 Aaron Johnston-Karas Person Legally Responsible Official 04/09/2001 null null Regulatory Measures(non-enforcement) Reg. Measure ID Regulatory Measure Type Region WDID Title Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date 186254 Enrollee 3 3 430804229 Enrollee under Waiver for Specific Disch Types TENNANT AVENUE SLURRY Historical WDRNONMUNIPRCS R3-2014-0041 07/29/2004 07/28/2006 Discharger 09/01/2005 null 296608 WDR 3 3 352000003 WDR R3-2005-0063 for Graniterock Company, Inc. Southside #1540 Active WDRMINING R3-2005-0063 07/08/2005 null Discharger 03/08/1991 null 146936 WDR 3 3 442006001 WDR 94-046 for GRANITEROCK COMPANY, INC. Active WDRMINING 94-046 06/03/1994 null Discharger 06/03/1994 null 143525 WDR 3 3 442006001 NPDES 74-096 for GRANITEROCK COMPANY, INC. Historical WDR 74-096 10/11/1974 null Discharger 10/11/1974 null 143249 WDR 3 3 442006001 NPDES 84-003 for GRANITEROCK COMPANY, INC. Historical WDR 84-003 01/20/1984 null Discharger 01/20/1984 null 145141 WDR 3 3 352000003 WDR 91-025 for GRANITEROCK COMPANY, INC. Historical WDR 91-025 03/08/1991 07/06/2005 Discharger 03/08/1991 null 259852 Letter 3 null 3 442006001-LT940304 Historical WDR LT940304 null 03/04/1994 Discharger 03/04/1994 null 131191 Waiver 3 3 270104009 WDR 01-173 for GRANITEROCK COMPANY, INC. Historical WDR 01-173 04/23/2001 null Discharger 04/23/2001 null 143783 WDR 3 3 442006001 NPDES 88-151 for GRANITEROCK COMPANY, INC. Historical WDR 88-151 11/18/1988 null Discharger 11/18/1988 null 144149 NPDES Permit 3 3 352000001 NPDES 89-102 for GRANITEROCK COMPANY, INC. Historical NPDMINING 89-102 07/07/1989 07/08/1994 Discharger 07/07/1989 null 418028 NPDES Permit 3 3 352000001 NPDES R3-2017-0027 for Granite Rock Company Arthur Wilson Quarry Active NPDMINING R3-2017-0027 12/01/2017 null Discharger 12/15/2017 null 134029 NPDES Permit 3 3 352000001 NPDES R3-2005-0044 for GRANITEROCK COMPANY, INC. Historical NPDMINING R3-2005-0044 07/02/2005 01/27/2011 Discharger 05/13/2005 null 380185 NPDES Permit 3 3 352000001 NPDES R3-2010-0025 for Granite Rock Co Arthur R. Wilson Quarry Historical NPDMINING R3-2010-0025 01/28/2011 11/30/2017 Discharger 07/11/2011 null 146937 NPDES Permit 3 3 352000001 NPDES 94-047 for GRANITEROCK COMPANY, INC. Historical NPDMINING 94-047 07/08/1994 05/18/2000 Discharger 07/08/1994 null 260472 Letter 3 null 3 352000001-1 Historical NPDMINING 1 null 03/01/2000 Discharger 09/09/1999 null 143265 NPDES Permit 3 3 352000001 NPDES 84-034 for GRANITEROCK COMPANY, INC. Historical NPDMINING 84-034 05/18/1984 07/07/1989 Discharger 05/18/1984 null 147670 NPDES Permit 3 3 352000001 NPDES 00-007 for GRANITEROCK COMPANY, INC. Historical NPDMINING 00-007 05/19/2000 05/12/2005 Discharger 05/19/2000 null Violations within the past calendar 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. 1148651 10/02/2025 Late Report Failure to submit annual monitoring report for 2025. Violation null 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 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 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 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 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 1137705 12/03/2024 Late Report Monthly SMR ( MONNPDES ) report for October 2024 (2869155) was due on 02-DEC-24 Violation null 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 null 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 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 1147214 09/02/2025 Late Report Monthly SMR ( MONNPDES ) report for July 2025 (2987630) was due on 01-SEP-25 Violation null Report Granite Rock Arthur Wilson Quarry 418028 R3-2017-0027 N 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 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 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 Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 244267 Notice of Violation UNKNOWN Enforcement - 3 352000001 NPDMINING 03/17/2003 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 395104 Oral Communication null Oral Com 02/26/2014 for Granite Rock Co NPDMINING 02/26/2014 Historical 409404 Admin Civil Liability R3-2016-0046 ACL R3-2016-0046 for Granite Rock Company NPDMINING 12/02/2016 Historical 417932 Notice of Violation null NOV & 13267 Order 08/03/2017 for Granite Rock Company Quail Hollow Sand Quarry WDRMINING 08/03/2017 Historical 423490 Admin Civil Liability R3-2018-0046 ACL R3-2018-0046 for Granite Rock Company NPDMINING 11/06/2018 Historical 433566 Staff Enforcement Letter null SEL 08/14/2019 for Granite Rock Company Arthur Wilson Quarry NPDMINING 08/14/2019 Historical 436331 Staff Enforcement Letter null SEL 09/12/2019 for Granite Rock Company WDRMINING 09/12/2019 Historical 436326 Staff Enforcement Letter null SEL 09/12/2019 for Granite Rock Company WDRMINING 09/12/2019 Historical 434444 Notice of Violation null NOV 09/24/2019 for Granite Rock Company Arthur Wilson Quarry NPDMINING 09/24/2019 Active 446972 Admin Civil Liability R3-2022-0030 ACL R3-2022-0030 for Granite Rock Company NPDMINING 05/17/2022 Historical 456781 Admin Civil Liability R3-2024-0032 ACL R3-2024-0032 for Granite Rock Company NPDMINING 07/09/2024 Historical 461542 Admin Civil Liability R3-2025-0051 ACL R3-2025-0051 for Granite Rock Company NPDMINING 09/04/2025 Historical 463065 Notice of Violation null NOV 10/24/2025 for Granite Rock Company Southside #1540 WDRMINING 10/24/2025 Historical 463075 Notice of Violation null NOV 10/27/2025 for Granite Rock Company Quail Hollow Sand Quarry WDRMINING 10/27/2025 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status