General Information
Party ID	Party Name	Party Classification	Mailing Address	Work Phone	Email/Website
553449	City of Rio Vista	City Agency	1 Main Street Rio Vista, CA 94571	null	null	

Related Places
Place ID	Place Name	County	Region	Place Type	Relationship to Party	Relationship Start Date	Relationship End Date
887871	Delta Research Station Project: Well Pumping Test	Solano	5S	Domestic Site NEC	Owner	04/20/2023	null	
841627	Rio Vista City WS	Solano	5S	Utility Structure	Owner and Operator	11/17/2017	null	
818941	City of Rio Vista Boat Launch Ramp Replacement Project	Solano	5S	Dredge/Fill Site	Owner	10/23/2015	null	

Related Parties
Party ID	Party Name	Party Type	Role/Relationship	Relationship Start Date	Relationship End Date	Classification
637760	Robert Clarke	Person	Legally Responsible Official	04/20/2023	null	null	
637759	Robin Borre	Person	Legally Responsible Official	04/20/2023	null	null	
553450	David Melilli	Person	Legally Responsible Official	10/22/2015	null	null	
553450	David Melilli	Person	Data Submitter	10/23/2015	null	null	
544461	Thomas Butler	Person	Legally Responsible Official	04/20/2023	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
452365	Enrollee - NPDES	5S	null	Enrollee - NPDES Limited Threat GO R5-2022-0006-010 for US Fish and Wildlife Service	Historical	NPDNONMUNIPRCS	R5-2022-0006-02	03/28/2023	11/27/2023	Discharger	03/28/2023	null	
417117	Enrollee - NPDES	5S	4DW0093	Enrollee - NPDES under Order 2014-0194-DWQ Drinking Water System Discharges for City of Rio Vista	Active	NPDNONMUNIPRCS	2014-0194-DWQ	07/01/2016	null	Discharger	11/17/2017	null	
403403	401 Certification	5S	5A48CR00134	WQC 11/20/2015 for City of Rio Vista, Boat Launch Ramp Replacement	Historical	CERFILLEXC	null	11/20/2015	11/20/2020	Discharger	10/23/2015	null	

Violations within the past five calendar 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.
1119710	04/26/2023	Order Conditions	Temperature Difference Between Sample and Upstream Instantaneous Maximum limit is 4 Degrees F and reported value was 9 Degrees F.	Violation	N	Report	Delta Research Station Project: Well Pumping Test	452365	R5-2022-0006-02	Y	
1119709	04/26/2023	OEV	pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.6 SU.	Violation	N	Report	Delta Research Station Project: Well Pumping Test	452365	R5-2022-0006-02	Y	

Enforcement Actions
Enforcement ID	Enforcement Type	Enf. Order No.	Title	Program	Effective Date	Status
454146	Notice of Violation	null	NOV 08/31/2023 for US Fish & Wildlife Service Sacramento	NPDNONMUNIPRCS	08/31/2023	Historical	

Regulatory Measures linked to Related Parties
Reg. Measure ID	Organization	Regulatory Measure Type	Program	Effective Date	Status