General Information
Party ID	Party Name	Party Classification	Mailing Address	Work Phone	Email/Website
S637764	Pacific Biosciences of CA Inc	Privately-Owned Business	1305 O'Brien Drive Menlo Park, CA 94025	N/A	N/A	

Related Places
Place ID	Place Name	County	Region	Place Type	Relationship to Party	Relationship Start Date	Relationship End Date
S869426	Pacific Biosciences of California Inc	San Mateo	2	Facility	Discharger	01/03/2019	null	
S841486	Pacific Biosciences of CA Inc	San Mateo	2	Facility	Discharger	10/01/2015	null	

Related Parties
Party ID	Party Name	Party Type	Role/Relationship	Relationship Start Date	Relationship End Date	Classification
N/A	Rebecca Stager	Contact	Owner Contact	null	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
S504666	Industrial	2	2 41NEC005647	Notice Of Intent New Application	Active	INDSTW	2014-0057-DWQ	10/29/2019	null	Discharger	01/03/2019	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.
S898766	10/02/2025	SW - Failure to meet NEC criteria	Failure to re-certify the NEC for 2025-2026 reporting year.	Violation	N	Report	Pacific Biosciences of California Inc	S504666	2014-0057-DWQ	Y	

Enforcement Actions
Enforcement ID	Enforcement Type	Enf. Order No.	Title	Program	Effective Date	Status
S464250	Notice of Violation	null	2 41NEC005647	INDSTW	10/17/2025	Active	
S443514	Notice of Violation	null	2 41NEC005647	INDSTW	10/18/2021	Historical	

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