| 2023 | San Gabriel Valley Protective Association | 990EZ | Asst. Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2023 | Central Basin Water Association | 990 | Executive Secretary | 0.25 | $0 | $0 | View return |
| 2022 | San Gabriel Valley Water Assoc | 990 | Executive Secretary | 1 | $0 | $0 | View return |
| 2022 | San Gabriel Valley Protective Association | 990EZ | Asst. Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2022 | Central Basin Water Association | 990EZ | Executive Secretary | 0.25 | $0 | $0 | View return |
| 2021 | San Gabriel Valley Protective Association | 990EZ | Asst Secretary | 1 | $0 | $0 | View return |
| 2021 | San Gabriel Valley Water Assoc | 990 | Executive Secretary | 1 | $0 | $0 | View return |
| 2021 | California Groundwater Coalition | 990EZ | Secretary-Treasurer | 1 | $0 | $0 | View return |
| 2021 | Central Basin Water Association | 990EZ | Executive Secretary | 0.25 | $0 | $0 | View return |
| 2020 | San Gabriel Valley Water Assoc | 990 | Executive Secretary | 1 | $0 | $0 | View return |
| 2020 | San Gabriel Valley Protective Association | 990EZ | Asst Secretary | 1 | $0 | $0 | View return |
| 2020 | Central Basin Water Association | 990EZ | Executive Secretary | 0.25 | $0 | $0 | View return |
| 2019 | San Gabriel Valley Protective Association | 990EZ | Asst Secretary | 1 | $0 | $0 | View return |
| 2019 | Central Basin Water Association | 990 | Executive Secretary | 0.25 | $0 | $0 | View return |
| 2019 | California Groundwater Coalition | 990EZ | Treasurer/ Secretary | 1 | $0 | $0 | View return |
| 2019 | San Gabriel Valley Water Assoc | 990 | Executive Secretary | 1 | $0 | $0 | View return |
| 2018 | Association of Ground Water Agencies | 990EZ | Chairman | 0 | $0 | $0 | View return |
| 2018 | Central Basin Water Association | 990EZ | Executive Secretary | 0.25 | $0 | $0 | View return |
| 2018 | San Gabriel Valley Water Assoc | 990 | Executive Secretary | 1 | $0 | $0 | View return |
| 2018 | California Groundwater Coalition | 990EZ | Treasurer/ Secretary | 1 | $0 | $0 | View return |
| 2018 | San Gabriel Valley Protective Association | 990EZ | Asst Secretary | 1 | $0 | $0 | View return |
| 2017 | Association of Ground Water Agencies | 990EZ | Chairman | 0 | $0 | - | View return |
| 2017 | California Groundwater Coalition | 990EZ | Treasurer/ Secretary | 1 | $0 | $0 | View return |
| 2017 | San Gabriel Valley Protective Association | 990EZ | Asst Secretary | 1 | $0 | $0 | View return |
| 2017 | Central Basin Water Association | 990EZ | Executive Secretary | 0.25 | $0 | $0 | View return |
| 2016 | Association of Ground Water Agencies | 990EZ | Chairman | 1 | $0 | - | View return |
| 2016 | San Gabriel Valley Protective Association | 990EZ | Asst Secreta | 1 | $0 | - | View return |
| 2016 | San Gabriel Valley Water Assoc | 990EZ | Executive Se | 1 | $0 | - | View return |
| 2016 | California Groundwater Coalition | 990EZ | Treasurer/ S | 1 | $0 | - | View return |
| 2016 | Central Basin Water Association | 990EZ | Executive Se | 0.25 | $0 | - | View return |
| 2015 | Association of Ground Water Agencies | 990EZ | Chairman | 1 | $0 | - | View return |
| 2015 | California Groundwater Coalition | 990EZ | Treasurer/ S | 1 | $0 | - | View return |
| 2015 | San Gabriel Valley Protective Association | 990EZ | Asst Secreta | 1 | $0 | - | View return |
| 2015 | Central Basin Water Association | 990EZ | Executive Se | 0.25 | $0 | - | View return |
| 2014 | Association of Ground Water Agencies | 990EZ | Chairman | 1 | $0 | - | View return |
| 2014 | California Groundwater Coalition | 990EZ | Treasurer/ S | 1 | $0 | - | View return |
| 2014 | Central Basin Water Association | 990 | Executive Se | 0.25 | $0 | $0 | View return |
| 2014 | San Gabriel Valley Protective Association | 990EZ | Asst Secreta | 1 | $0 | - | View return |
| 2013 | San Gabriel Valley Protective Association | 990EZ | Asst. Secret | 1 | $0 | - | View return |
| 2013 | Central Basin Water Association | 990EZ | Executive Se | 1 | $0 | - | View return |
| 2013 | California Groundwater Coalition | 990EZ | Treasurer/ S | 1 | $0 | - | View return |