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Department of
SOCIAL SERVICES

Community Care Licensing


COMPLAINT INVESTIGATION REPORT

Facility Number: 384004643
Report Date: 11/17/2025
Date Signed: 12/08/2025 11:08:48 AM

Unsubstantiated


STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY

COMPLAINT INVESTIGATION REPORT		CALIFORNIA DEPARTMENT OF SOCIAL SERVICES
COMMUNITY CARE LICENSING DIVISION
SAN BRUNO CC RO, 851 TRAEGER AVE., SUITE 360
SAN BRUNO, CA 94066
This is an official report of an unannounced visit/investigation of a complaint received in our office on
10/02/2025 and conducted by Evaluator Jovanna Badger
PUBLIC
COMPLAINT CONTROL NUMBER: 05-CC-20251002121416
FACILITY NAME:POTRERO HILL MONTESSORI SCHOOLFACILITY NUMBER:
384004643
ADMINISTRATOR:YANG, LIUFACILITY TYPE:
850
ADDRESS:1701 17TH STREETTELEPHONE:
(650) 476-3015
CITY:SAN FRANCISCOSTATE: CAZIP CODE:
94103
CAPACITY:54CENSUS: 20DATE:
11/17/2025
UNANNOUNCEDTIME BEGAN:
09:15 AM
MET WITH:Liu Yang (Jessica)TIME COMPLETED:
11:00 AM
ALLEGATION(S):
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Facility staff do not provide adequate supervision to children in care.
Unqualified staff are providing care and supervision to day care children.
Facility staff do not ensure that the daycare facility is upkept.
INVESTIGATION FINDINGS:
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On 11/17/2025, Licensing Program Analysts (LPAs) J. Badger and H. Leong, conducted an unannounced complaint investigation visit at the facility named above. LPAs met with the facility director, Liu Yang (Jessica), and explained the purpose of the visit. Present during the visit were 20 children in care with 7 teachers.

Related documents were reviewed, and interviews were conducted with staff. Based on the interviews and relevant documents, there is no sufficient evidence to prove that the three allegations listed above took place, therefore, the allegations are Unsubstantiated.

Although the allegation may have happened or is valid, there is no preponderance of evidence to prove the alleged violation did or did not occur.

Appeal rights were given to the director, Liu Yang (Jessica).
Notice of Site Visit was given and shall remain posted for 30 days.
Exit interview conducted and report was reviewed with the director, Liu Yang (Jessica).
Unsubstantiated
Estimated Days of Completion:
SUPERVISORS NAME: Daniel J Oquendo
LICENSING EVALUATOR NAME: Jovanna Badger
LICENSING EVALUATOR SIGNATURE:

DATE: 11/17/2025
I acknowledge receipt of this form and understand my licensing appeal rights as explained and received.
FACILITY REPRESENTATIVE SIGNATURE:

DATE: 11/17/2025
This report must be available at Child Care and Group Home facilities for public review for 3 years.
LIC9099 (FAS) - (06/04)
Page: 1 of 3
STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY

COMPLAINT INVESTIGATION REPORT		CALIFORNIA DEPARTMENT OF SOCIAL SERVICES
COMMUNITY CARE LICENSING DIVISION
SAN BRUNO CC RO, 851 TRAEGER AVE., SUITE 360
SAN BRUNO, CA 94066
This is an official report of an unannounced visit/investigation of a complaint received in our office on
10/02/2025 and conducted by Evaluator Jovanna Badger
PUBLIC
COMPLAINT CONTROL NUMBER: 05-CC-20251002121416

FACILITY NAME:POTRERO HILL MONTESSORI SCHOOLFACILITY NUMBER:
384004643
ADMINISTRATOR:YANG, LIUFACILITY TYPE:
850
ADDRESS:1701 17TH STREETTELEPHONE:
(650) 476-3015
CITY:SAN FRANCISCOSTATE: CAZIP CODE:
94103
CAPACITY:54CENSUS: 20DATE:
11/17/2025
UNANNOUNCEDTIME BEGAN:
09:15 AM
MET WITH:Liu Yang (Jessica).TIME COMPLETED:
11:00 AM
ALLEGATION(S):
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9
Facility staff do not ensure that the daycare facility is free of pest.
INVESTIGATION FINDINGS:
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On 11/17/2025, Licensing Program Analysts (LPAs) J. Badger and H. Leong, conducted an unannounced complaint investigation visit at the above-named facility. LPA met with facility director, Liu Yang (Jessica), and explained the purpose of the visit. Present during the visit were 20 children in care with 7 teachers.

Related documents were reviewed, and interviews were conducted with staff. Based on the information obtained from the LPA investigation, the preponderance of evidence standard has been met, therefore, the allegation is found to be SUBSTANTIATED.

Appeal rights were given to the director, Liu Yang (Jessica).
Notice of Site Visit was given and shall remain posted for 30 days.
Exit interview conducted and report was reviewed with the director, Liu Yang (Jessica).
Substantiated
Estimated Days of Completion:
SUPERVISORS NAME: Daniel J Oquendo
LICENSING EVALUATOR NAME: Jovanna Badger
LICENSING EVALUATOR SIGNATURE:

DATE: 11/17/2025
I acknowledge receipt of this form and understand my licensing appeal rights as explained and received.
FACILITY REPRESENTATIVE SIGNATURE:

DATE: 11/17/2025
This report must be available at Child Care and Group Home facilities for public review for 3 years.
LIC9099 (FAS) - (06/04)
Page: 2 of 3
Control Number 05-CC-20251002121416
STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY

COMPLAINT INVESTIGATION REPORT (Cont)		CALIFORNIA DEPARTMENT OF SOCIAL SERVICES
COMMUNITY CARE LICENSING DIVISION
SAN BRUNO CC RO, 851 TRAEGER AVE., SUITE 360
SAN BRUNO, CA 94066

FACILITY NAME: POTRERO HILL MONTESSORI SCHOOL
FACILITY NUMBER: 384004643
DEFICIENCY INFORMATION FOR THIS PAGE:
VISIT DATE: 11/17/2025
Deficiency Type
POC Due Date /
Section Number
DEFICIENCIES
PLAN OF CORRECTIONS(POCs)
Type B
11/17/2025
Section Cited
HSC
101238(a)(1)
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101238(a) The child care center shall be clean, safe, sanitary and in good repair ... (1) The licensee shall take measures to keep the center free of flies, other insects, and rodents.
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The licensee has submitted evidence of an ongoing exterminator contract and service report. As of today the deficiency will be cleared.
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WD
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Failure to correct the cited deficiency(ies), on or before the Plan of Correction (POC) due date, may result in a civil penalty assessment.
SUPERVISORS NAME: Daniel J Oquendo
LICENSING EVALUATOR NAME: Jovanna Badger
LICENSING EVALUATOR SIGNATURE:

DATE: 11/24/2025
I acknowledge receipt of this form and understand my appeal rights as explained and received.
FACILITY REPRESENTATIVE SIGNATURE:

DATE: 11/24/2025
LIC9099 (FAS) - (06/04)
Page: 3 of 3