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California Integrated Water Quality System Project (CIWQS)
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Place ID 217946 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
2 217946 Clover Flat Landfill Land fill 4380 Silverado Trl Calistoga, CA, 94515-9603 Napa
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
495969 Person Alyx Karpowicz Case Worker 09/11/2012
507974 Person Julian C. Isham Is A Data Submitter For 05/21/2009 09/16/2015
507973 Person Sheila Richgels Is A Data Submitter For 05/21/2009 09/16/2015
507968 Person Gary Ponder Is Onsite Manager For 05/21/2009 09/16/2015
138514 Person Keith Roberson Case Worker 06/30/2005 08/01/2012
123013 Person Pestoni Marvin Contact 03/19/1992 06/17/2009
11267 Organization Clover Flat Landfill Operator Privately-Owned Business 03/19/1992
8855 Organization Clover Flat Disposal Service Inc Owner Privately-Owned Business 08/15/1978
Total Related Parties: 8
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
439974 WDR 2 LFOPER R2-2020-0016 2 283076001 05/18/2020 05/18/2030 Active N
439748 Co-Permitee SB SLIC 2019-0006-DWQ 2 283076001 03/20/2019 Active N
346217 WDR 2 LFOPER R2-2008-0027 2 283076001 05/14/2008 05/14/2018 Historical N
142040 WDR 2 LNDISP 91-160 2 283076001 11/20/1991 05/14/2008 Historical Y
141527 WDR 2 LNDISP 88-058 2 283076001 04/20/1988 10/01/1991 Historical N
145250 WDR 2 LNDISP 80-018 2 283076001 04/15/1980 04/15/1990 Historical N
145187 WDR 2 LNDISP 78-066 2 283076001 08/15/1978 08/15/1988 Historical N
Total Reg Measures: 7
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 0 Priority Violations: 0
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.
Violation Types
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
444962 Clean-up and Abatement Order R2-2019-0014 04/10/2019 Superceded
238161 Oral Communication 09/21/2001 Historical
Total Enf Actions: 2
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
61643658 Field Oversight Alyx Karpowicz 10/15/2025 N 0 N/A
61289214 B Type compliance inspection Alyx Karpowicz 09/03/2025 N 0 N/A
59524796 B Type compliance inspection Alyx Karpowicz 03/25/2025 N 0 N/A
58194066 B Type compliance inspection Alyx Karpowicz 11/26/2024 N 0 [Attachments]
57626610 B Type compliance inspection Alyx Karpowicz 10/15/2024 N 0 [Attachments]
55609827 B Type compliance inspection Alyx Karpowicz 04/23/2024 N 0 [Attachments]
55096517 B Type compliance inspection Alyx Karpowicz 02/27/2024 N 0 [Attachments]
53786909 B Type compliance inspection Alyx Karpowicz 11/15/2023 N 0 [Attachments]
52464861 B Type compliance inspection Alyx Karpowicz 07/19/2023 N 0 [Attachments]
51548811 B Type compliance inspection Alyx Karpowicz 04/25/2023 N 0 [Attachments]
50257403 B Type compliance inspection Alyx Karpowicz 01/20/2023 N 0 [Attachments]
48803963 B Type compliance inspection Alyx Karpowicz 08/22/2022 N 0 [Attachments]
47144019 B Type compliance inspection Alyx Karpowicz 03/15/2022 N 0 [Attachments]
45483077 B Type compliance inspection Alyx Karpowicz 10/19/2021 N 0 [Attachments]
44722971 B Type compliance inspection Alyx Karpowicz 07/20/2021 N 0 [Attachments]
43776027 B Type compliance inspection Alyx Karpowicz 04/07/2021 N 0 [Attachments]
42980493 B Type compliance inspection Alyx Karpowicz 01/28/2021 N 0 [Attachments]
42608209 B Type compliance inspection Alyx Karpowicz 01/06/2021 N 0 [Attachments]
42057294 B Type compliance inspection Alyx Karpowicz 10/22/2020 N 0 N/A
41181545 B Type compliance inspection Alyx Karpowicz 08/06/2020 N 0 [Attachments]
39908188 B Type compliance inspection Alyx Karpowicz 04/01/2020 N 0 [Attachments]
39225730 Follow-up inspection (enforcement) Alyx Karpowicz 01/30/2020 N 0 N/A
38707123 Complaint inspection Alyx Karpowicz 12/17/2019 N 0 N/A
37930183 Follow-up inspection (noncompliance) Alyx Karpowicz 10/15/2019 N 0 N/A
37526880 Follow-up inspection (enforcement) Alyx Karpowicz 09/10/2019 N 0 N/A
36881799 B Type compliance inspection Alyx Karpowicz 07/02/2019 N 0 N/A
36608133 Follow-up inspection (noncompliance) Alyx Karpowicz 06/04/2019 N 0 N/A
36464780 Follow-up inspection (noncompliance) Alyx Karpowicz 05/21/2019 N 0 N/A
36425778 Follow-up inspection (noncompliance) Alyx Karpowicz 05/14/2019 N 0 N/A
36274476 Follow-up inspection (noncompliance) Alyx Karpowicz 04/30/2019 N 0 N/A
36024573 Follow-up inspection (noncompliance) Alyx Karpowicz 04/16/2019 N 0 N/A
35960892 Follow-up inspection (noncompliance) Alyx Karpowicz 04/08/2019 N 0 N/A
35912972 Field Oversight Alyx Karpowicz 04/02/2019 N 0 N/A
35912967 Complaint inspection Alyx Karpowicz 03/26/2019 N 0 N/A
35679969 B Type compliance inspection Alyx Karpowicz 03/12/2019 N 0 Download
34255228 B Type compliance inspection Alyx Karpowicz 10/30/2018 N 0 [Attachments]
32432184 B Type compliance inspection Alyx Karpowicz 05/01/2018 N 0 [Attachments]
30587010 B Type compliance inspection Alyx Karpowicz 11/13/2017 N 0 N/A
23027714 B Type compliance inspection Alyx Karpowicz 01/07/2016 N 0 [Attachments]
18291158 B Type compliance inspection Alyx Karpowicz 11/12/2014 N 0 [Attachments]
16562596 B Type compliance inspection Alyx Karpowicz 06/11/2014 N 0 N/A
14710445 B Type compliance inspection Alyx Karpowicz 12/11/2013 N 0 N/A
13192354 B Type compliance inspection Alyx Karpowicz 07/22/2013 N 0 N/A
10233906 B Type compliance inspection Alyx Karpowicz 11/08/2012 N 0 N/A
10462967 B Type compliance inspection Alyx Karpowicz 11/08/2012 N 0 N/A
7965180 B Type compliance inspection Keith Roberson 04/18/2012 N 0 N/A
6172758 B Type compliance inspection Keith Roberson 11/03/2011 N 0 N/A
2958494 B Type compliance inspection Keith Roberson 08/31/2010 N 0 N/A
1898304 B Type compliance inspection Keith Roberson 10/27/2009 N 0 N/A
1593748 B Type compliance inspection Keith Roberson 01/28/2009 N 0 N/A
1321191 B Type compliance inspection Keith Roberson 02/19/2008 N 0 N/A
1223172 B Type compliance inspection Keith Roberson 10/25/2007 N 0 N/A
962755 B Type compliance inspection 12/14/2006 N 0 N/A
962923 B Type compliance inspection 12/14/2006 Y 0 N/A
962922 B Type compliance inspection 10/18/2006 Y 0 N/A
325796 B Type compliance inspection Tom Butler 08/20/2002 Y 0 N/A
290070 A Type compliance inspection Tom Butler 11/16/2001 Y 0 N/A
290069 B Type compliance inspection Tom Butler 09/21/2001 Y 0 N/A
290071 B Type compliance inspection Tom Butler 03/09/2001 Y 0 N/A
290068 B Type compliance inspection Tom Butler 08/06/2000 Y 0 N/A
290047 B Type compliance inspection Keith Roberson 03/03/1999 Y 0 N/A
290048 B Type compliance inspection Keith Roberson 02/18/1998 Y 0 N/A
290046 B Type compliance inspection Richard McMurtry 01/14/1997 Y 0 N/A
290049 B Type compliance inspection Richard McMurtry 02/23/1995 Y 0 N/A
290050 B Type compliance inspection Richard McMurtry 09/16/1994 Y 0 N/A
Total Inspections: 65 Last Inspection: 10/15/2025
  
The current report was generated with data as of: 12/26/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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