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
S603341 DeNova Homes Inc Privately-Owned Business 1500 Willow Pass Court Concord, CA 94520 N/A N/A
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
S807463 Southgate Sonoma 2 Facility Discharger 01/19/2011 None
S833886 Pittman Road San Joaquin 5S Facility Discharger 02/17/2015 None
S872864 Copper Hills Unit 2A Calaveras 5S Facility Discharger 05/16/2019 None
S872731 Mockingbird Lane Sonoma 2 Facility Discharger 05/10/2019 None
S874676 Santosha San Joaquin 5S Facility Discharger 08/05/2019 None
S915111 Huntington Townhomes Santa Clara 2 Facility Discharger 08/10/2023 None
S905212 Bretton Woods Yolo 5S Facility Discharger 06/01/2022 None
S934271 Silverado Terrace Napa 2 Facility Discharger 08/05/2025 None
S808090 Andersen Subdivision Napa 2 Facility Discharger 02/23/2011 None
S842337 Newbury at Parklane Solano 5S Facility Discharger 10/28/2015 None
S845239 Driftwood Estates Contra Costa 2 Facility Discharger 03/17/2016 None
S880437 Stanford Crossings San Joaquin 5S Facility Discharger 02/25/2020 None
S888445 Secluded Woods Contra Costa 2 Facility Discharger 12/07/2020 None
S866204 Wildflower Station Contra Costa 5S Facility Discharger 08/09/2018 None
S902888 One Lake Neighborhood 8 Solano 2 Facility Discharger 03/11/2022 None
S905865 Heritage View Contra Costa 2 Facility Discharger 07/07/2022 None
S920190 Amarone Alameda 2 Facility Discharger 03/08/2024 None
S935472 Heritage View Contra Costa 2 Facility Discharger 08/25/2025 None
S651563 Driftwood Estates Contra Costa 2 Facility Discharger 06/08/2007 None
S802719 Lone Oak Farms Santa Clara 3 Facility Discharger 04/12/2010 None
S809189 Cimarron Santa Clara 3 Facility Discharger 04/08/2011 None
S827151 Rancho Hills Santa Clara 3 Facility Discharger 12/13/2013 None
S885656 Pittman Road Self Storage Solano 2 Facility Discharger 09/04/2020 None
S856510 Allendale San Benito 3 Facility Discharger 06/24/2017 None
S912017 180 Midhill Road Contra Costa 2 Facility Discharger 04/07/2023 None
S900206 2151 Appian Way Contra Costa 2 Facility Discharger 11/29/2021 None
S934839 Cava Alameda 2 Facility Discharger 08/15/2025 None
S921889 Cypress Road and Knightsen Avenue Improvements Contra Costa 5S Facility Discharger 05/13/2024 None
S819583 Oak Leaf Ranch II Napa 2 Facility Discharger 10/03/2012 None
S833857 10 Lots at Tract 9473 Santa Clara 3 Facility Discharger 02/13/2015 None
S836082 Monte Bello Estates Subdivision San Joaquin 5S Facility Discharger 06/16/2015 None
S842662 Gilbert Ranch Contra Costa 5S Facility Discharger 11/11/2015 None
S855621 BRODY RANCH SUBDIVISION Sonoma 2 Facility Discharger 05/23/2017 None
S907942 Hummingbird Cottages Sonoma 2 Facility Discharger 10/04/2022 None
S909016 Cava Alameda 2 Facility Discharger 11/21/2022 None
S933900 Liberty Phase 3 Solano 5S Facility Discharger 07/29/2025 None
S935490 Bretton Woods Yolo 5S Facility Discharger 08/25/2025 None
S801889 The Plaza at Fairfield Commons Solano 2 Facility Discharger 02/08/2010 None
S826795 Chesapeake Village Napa 2 Facility Discharger 11/20/2013 None
S834660 Prescott Contra Costa 5S Facility Discharger 04/02/2015 None
S852042 Baker Costa Mesa Orange 8 Facility Discharger 12/21/2016 None
S875457 Thornton Avenue Alameda 2 Facility Discharger 08/30/2019 None
S861896 OLIVIA APARTMENTS Sonoma 2 Facility Discharger 02/13/2018 None
S891912 Bennett Estates Contra Costa 5S Facility Discharger 03/18/2021 None
S897429 Summer Lake North Contra Costa 5S Facility Discharger 08/20/2021 None
S934802 Huntington Townhomes Santa Clara 2 Facility Discharger 08/14/2025 None
S819821 Harvest Park Santa Clara 3 Facility Discharger 10/17/2012 None
S831024 Greenhorn Calaveras 5S Facility Discharger 08/15/2014 None
S832653 Campus Estates Solano 2 Facility Discharger 10/23/2014 None
S835588 Emerson Ranch Neighborhood 2B Contra Costa 5S Facility Discharger 05/21/2015 None
S883983 Foothill Estates Napa 2 Facility Discharger 07/16/2020 None
S915449 Willow Pass Office and Warehouse Contra Costa 2 Facility Discharger 08/21/2023 None
S909102 320 Balfour Road Contra Costa 2 Facility Discharger 11/28/2022 None
S908304 Cinnabar Grove Napa 2 Facility Discharger 10/19/2022 None
S933903 Summer Lake North Contra Costa 5S Facility Discharger 07/29/2025 None
S941554 Alcott Village Contra Costa 2 Facility Discharger 03/12/2026 None
S651562 Sea Breeze II Contra Costa 2 Facility Discharger 06/08/2007 None
S802688 River Park Napa 2 Facility Discharger 04/07/2010 None
S819861 Butterfield Station Townhomes Santa Clara 3 Facility Discharger 10/19/2012 None
S827859 River Islands Village I Takedown 1 San Joaquin 5S Facility Discharger 02/10/2014 None
S828044 Township Square Alameda 2 Facility Discharger 02/17/2014 None
S827549 Diablo Grande Unit 2A Stanislaus 5S Facility Discharger 01/21/2014 None
S836204 Central Park Village Townhomes Orange 8 Facility Discharger 06/18/2015 None
S839679 Tract 17231 Orange 8 Facility Discharger 08/27/2015 None
S885620 Estaire Solano 2 Facility Discharger 09/03/2020 None
S870036 Traditions at the Meadows Contra Costa 2 Facility Discharger 02/04/2019 None
S893874 Diablo Meadows Contra Costa 2 Facility Discharger 05/14/2021 None
S893095 Silverado Terrace Napa 2 Facility Discharger 04/21/2021 None
S934269 Cinnabar Grove Napa 2 Facility Discharger 08/05/2025 None
S207984 Area K Paradise Valley Solano 2 Facility Discharger 09/01/2005 None
S803858 Brush Creek Solano 2 Facility Discharger 06/23/2010 None
S814822 Carriage Hills III 8 Lots Santa Clara 3 Facility Discharger 01/27/2012 None
S834809 The Vines on 80 Solano 2 Facility Discharger 04/10/2015 None
S841551 The Cottages at Diablo Grande Stanislaus 5S Facility Discharger 10/01/2015 None
S844333 Harbor Costa Mesa Orange 8 Facility Discharger 02/05/2016 None
S845178 Aviano Contra Costa 5S Facility Discharger 03/15/2016 None
S846355 Paradise 360 Solano 2 Facility Discharger 05/05/2016 None
S848072 Carriage Hills III Phase B Lots 17B-20B Santa Clara 3 Facility Discharger 07/08/2016 None
S856326 Mercury at Taylor Contra Costa 2 Facility Discharger 06/15/2017 None
S889518 Liberty Phase 3 Solano 5S Facility Discharger 01/11/2021 None
S858532 Evergreen Circle Santa Clara 2 Facility Discharger 09/01/2017 None
S892527 Casa Grande Sonoma 2 Facility Discharger 07/07/2020 None
S934829 Appian Contra Costa 2 Facility Discharger 08/15/2025 None
Total Related Places: 83
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
N/A Reed Onate Contact Owner Contact N/A N/A N/A
N/A Peter Giles Contact Owner Contact N/A N/A N/A
N/A Candace Hatch Contact Owner Contact N/A N/A N/A
N/A Alec Tappin Contact Owner Contact N/A N/A N/A
N/A Jeremy Shoenig Contact Owner Contact N/A N/A N/A
N/A Heath Schmalzried Contact Owner Contact N/A N/A N/A
N/A Derek Pampe Contact Owner Contact N/A N/A N/A
N/A Candace Hatch Contact Owner Contact N/A N/A N/A
Total Related Parties: 8
  
  
  
  
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?
S596940 Construction 2 2 07C411584 Active CONSTW 2009-0009-DWQ 03/16/2026 None Discharger 03/12/2026 None None
S588978 Construction 2 2 07C409327 Active CONSTW 2009-0009-DWQ 09/09/2025 None Discharger 08/15/2025 None None
S588991 Construction 2 2 01C409324 Active CONSTW 2009-0009-DWQ 09/09/2025 None Discharger 08/15/2025 None None
S589739 Construction 5S 5S57C409323 Active CONSTW 2009-0009-DWQ 09/09/2025 None Discharger 08/25/2025 None None
S588943 Construction 2 2 43C409320 Active CONSTW 2009-0009-DWQ 09/09/2025 None Discharger 08/14/2025 None None
S587930 Construction 5S 5S07C408926 Active CONSTW 2009-0009-DWQ 08/29/2025 None Discharger 07/29/2025 None None
S588350 Construction 2 2 28C408152 Active CONSTW 2009-0009-DWQ 08/11/2025 None Discharger 08/05/2025 None None
S587927 Construction 5S 5S48C408151 Active CONSTW 2009-0009-DWQ 08/11/2025 None Discharger 07/29/2025 None None
S571192 Construction 2 2 01C403320 Active CONSTW 2009-0009-DWQ 03/12/2024 None Discharger 03/08/2024 None None
Total Regulatory Measures: 9
  
  
  
  
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.
S894313 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Heritage View S551572 2009-0009-DWQ Y
S893882 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Thornton Avenue S512476 2009-0009-DWQ Y
S894081 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Silverado Terrace S535007 2009-0009-DWQ Y
S894363 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Cinnabar Grove S555054 2009-0009-DWQ Y
S895007 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Summer Lake North S540558 2009-0009-DWQ Y
S894384 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Cava S556041 2009-0009-DWQ Y
S894534 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Huntington Townhomes S564501 2009-0009-DWQ Y
S894212 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report 2151 Appian Way S544145 2009-0009-DWQ Y
S896249 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Bretton Woods S550381 2009-0009-DWQ 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: 9
*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
S461098 Notice of Violation None 5S57C397818 CONSTW 09/05/2025 Active
S459856 Notice of Violation None 5S07C394969 CONSTW 09/05/2025 Active
S459383 Notice of Violation None 2 43C401994 CONSTW 09/05/2025 Active
S459233 Notice of Violation None 2 01C399218 CONSTW 09/05/2025 Active
S459212 Notice of Violation None 2 28C399232 CONSTW 09/05/2025 Active
S459162 Notice of Violation None 2 07C400279 CONSTW 09/05/2025 Active
S459061 Notice of Violation None 2 07C397324 CONSTW 09/05/2025 Active
S458930 Notice of Violation None 2 28C393682 CONSTW 09/05/2025 Active
S458731 Notice of Violation None 2 01C388057 CONSTW 09/05/2025 Active
S444511 Notice of Non-Compliance for Non-Filers None 2 48C391834 CONSTW 11/09/2021 Active
S444491 Notice of Non-Compliance for Non-Filers None 2 01C388057 CONSTW 11/09/2021 Active
S444334 Notice of Non-Compliance for Non-Filers None 2 07C392340 CONSTW 11/09/2021 Active
S438735 1st Annual Report Notice of Non-Compliance None 5S05C376983 CONSTW 10/01/2020 Active
S435828 Verbal Communication None 5S05C387895 CONSTW 12/18/2019 Active
S433027 Notice of Violation None 3 35C380332 CONSTW 04/04/2019 Historical
S432268 Notice of Violation None 5S05C376983 CONSTW 01/04/2019 Active
S428511 Notice of Violation None 5S48C374670 CONSTW 01/30/2018 Active
S425381 Verbal Communication None 5S07C372716 CONSTW 12/17/2016 Active
S425380 Verbal Communication None 5S07C373089 CONSTW 12/17/2016 Active
S425252 Notice of Violation None 5S05C376983 CONSTW 11/09/2016 Active
S425162 2nd Annual Report Notice of Non-Compliance None 8 30C374102 CONSTW 10/31/2016 Active
S425158 2nd Annual Report Notice of Non-Compliance None 8 30C375368 CONSTW 10/31/2016 Active
S425147 2nd Annual Report Notice of Non-Compliance None 8 30C373314 CONSTW 10/31/2016 Historical
S424621 1st Annual Report Notice of Non-Compliance None 8 30C374102 CONSTW 09/30/2016 Active
S424603 1st Annual Report Notice of Non-Compliance None 8 30C375368 CONSTW 09/30/2016 Active
S424579 1st Annual Report Notice of Non-Compliance None 8 30C373314 CONSTW 09/30/2016 Historical
S424546 1st Annual Report Notice of Non-Compliance None 5S07C375809 CONSTW 09/21/2016 Historical
S424545 1st Annual Report Notice of Non-Compliance None 5S07C375140 CONSTW 09/21/2016 Historical
S417464 1st Annual Report Notice of Non-Compliance None 5S50C368801 CONSTW 10/03/2014 Historical
Total Enforcement Actions: 29
  
  
  
  
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: 05/07/2026
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