# Mark Day School

*Machine-readable school profile — served at https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/llm*

Full profile (human-readable): https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael

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## Core identification
- **NCES School ID**: `PSS_01899081`
- **School name**: Mark Day School
- **Location**: San Rafael, CA 94903
- **Address**: 39 Trellis Dr
- **District**: Nonsectarian
- **Sector**: Private
- **School type**: Regular
- **School level**: Primary
- **Grade range**: KG–8
- **Coordinates**: 38.00706, -122.55508
- **Phone**: 415-472-8000

## Enrollment (latest)
- **Students**: N/A
- **Teachers (FTE)**: N/A

## Neighbourhood (ACS 2019-2023)
- **Median household income**: $94,592
- **Poverty rate**: 13.5%
- **Bachelor's degree or higher**: 54.1%
- **Unemployment**: 9.6%
- **Foreign-born residents**: 21.5%
- **Single-parent households**: 2.3%

## Environmental context
- **Nearest Superfund (NPL)**: 11.9 miles (UNITED HECKATHORN CO)
- **Toxic Release Inventory sites within 1 mile**: 0
- **TRI sites within 5 miles**: 3
- **Nearest brownfield**: 10.36 miles (PENNSYLVANIA HARBOUR SITE 1)

### Water safety
- **Public water system**: FLIGHT RIDGE
- **SDWA health violations (10 yr)**: 0
- **Acute violations (10 yr)**: 0

### Air quality
- **PM2.5 annual average**: 5.06124 μg/m³ (EPA std: 9)
- **Nearest monitor**: 3.1 miles

## Related data feeds
- **Profile (human)**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael
- **Performance**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/performance
- **Finance**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/finance
- **Demographics**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/demographics
- **Inclusion**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/inclusion
- **Context (neighbourhood)**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/context
- **Attendance**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/attendance
- **Discipline**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/discipline
- **Outcomes**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/outcomes
- **Workforce**: https://us.ca.whatschool.ai/en/ca/school/mark-day-school-san-rafael/workforce

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*Source: US Dept of Education CCD, EDFacts, CRDC, F-33; US Census ACS; EPA SDWIS, TRI, NPL, AQS; state DOE portals (CA CDE, TX TEA, FL DOE, NY NYSED, IL ISBE, WA OSPI). Aggregated by WhatSchool.ai.*

*Canonical cross-domain architecture: WhatSchool.ai · Spill.org · CourseMap.org · WhatCareer.net*