# Twin Ridges Home Study Charter

*Machine-readable school profile — served at https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/llm*

Full profile (human-readable): https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city

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## Core identification
- **NCES School ID**: `069102311877`
- **School name**: Twin Ridges Home Study Charter
- **Location**: Nevada City, CA 95959
- **Address**: 111 New Mohawk Rd.
- **District**: Nevada County Office of Education (LEAID `0691023`)
- **Sector**: Public
- **School type**: Regular
- **School level**: Primary
- **Grade range**: 0–8
- **Charter school**: Yes
- **Coordinates**: 39.24803, -121.01638
- **Phone**: (530)478-1815
- **Website**: https://www.trhs.us

## Enrollment (2024)
- **Students**: 208
- **Teachers (FTE)**: 10
- **Student-teacher ratio**: 20.8:1
- **Free/reduced lunch**: 48.1%

## State accountability rating
- **System**: CA Dashboard
- **Year**: 2024
- **Overall rating**: Orange
- **Indicators**:
  - math: Orange
  - ela: Orange
  - chronic_absent: Green

## Academic performance (state assessments)
### 2024
- **ELA (CA SBAC)**: 31.9% proficient — 135 tested
- **ELA (CA SBAC) colour-derived**: 38.0% proficient
- **Math (CA SBAC)**: 38.0% proficient

## Attendance
- **2024**: chronic absence 3.6% (9 students) [source: ca_dashboard]
- **2020**: chronic absence 0.6% (1 students) [source: crdc_2020]
- **2020**: chronic absence 0.0% [source: crdc]
- **2017**: chronic absence 0.0% [source: crdc]

## Discipline (latest CRDC year)
- **Year**: 2020
- **In-school suspensions**: 0
- **Out-of-school suspensions**: 0
- **Expulsions**: 0

## Demographics (2023)
- **Free/reduced lunch eligible**: 37.7%

## Inclusion — IDEA & English Learners (2020)
- **Students with IEP (IDEA)**: 5.9% — 13 students
- **English Learners**: 0.0%

## Finance
### School-level (ESSA 2023-24)
- **Total per-pupil expenditure**: $12,227
- **Federal share**: $462
- **State + local share**: $11,765
- **Enrolled for PPE calc**: 220
### District F-33 (2022)
- **District per-pupil revenue**: $44,081,132
- **Federal share**: 10.5%
- **State share**: 57.2%
- **Local share**: 32.4%
- **Instructional spending per pupil**: $14,439,623

## Neighbourhood (ACS 2019-2023)
- **Median household income**: $79,777
- **Poverty rate**: 7.2%
- **Bachelor's degree or higher**: 51.6%
- **Unemployment**: 2.5%
- **Median gross rent**: $1,688
- **Foreign-born residents**: 11.3%
- **Single-parent households**: 4.3%

## Environmental context
- **Nearest Superfund (NPL)**: 2.8 miles (LAVA CAP MINE)
- **Toxic Release Inventory sites within 1 mile**: 2
- **TRI sites within 5 miles**: 5
- **Nearest brownfield**: 0.93 miles (PROVIDENCE MINE WASTE ROCK AREA)

### Water safety
- **Public water system**: CITY OF NEVADA CITY
- **SDWA health violations (10 yr)**: 2
- **Acute violations (10 yr)**: 2
- **Most recent violation**: 2023-01-01

### Air quality
- **PM2.5 annual average**: 4.17651 μg/m³ (EPA std: 9)
- **Nearest monitor**: 2.3 miles

## Nearby schools performing better

### chronic absence
- **Earle Jamieson Educational Options** — 0.7 mi away, 0% (this school: 3.6%)
- **Sierra Academy of Expeditionary Learning** — 1.2 mi away, 0% (this school: 3.6%)
- **Bitney Prep High** — 1.7 mi away, 0% (this school: 3.6%)
- **William & Marian Ghidotti High** — 1.8 mi away, 0% (this school: 3.6%)
- **Nevada Union High** — 2.1 mi away, 1.17% (this school: 3.6%)

### ela proficiency
- **Forest Charter** — 0.7 mi away, 39.8% (this school: 34.95%)
- **Deer Creek Elementary** — 0.7 mi away, 51.05% (this school: 34.95%)
- **Seven Hills Intermediate** — 0.9 mi away, 59.65% (this school: 34.95%)
- **Sierra Academy of Expeditionary Learning** — 1.2 mi away, 65.6% (this school: 34.95%)
- **Bitney Prep High** — 1.7 mi away, 44.5% (this school: 34.95%)

### math proficiency
- **Deer Creek Elementary** — 0.7 mi away, 66% (this school: 38%)
- **Seven Hills Intermediate** — 0.9 mi away, 52% (this school: 38%)
- **William & Marian Ghidotti High** — 1.8 mi away, 80% (this school: 38%)
- **Nevada Union High** — 2.1 mi away, 52% (this school: 38%)
- **Union Hill Elementary** — 3.2 mi away, 52% (this school: 38%)

## Related data feeds
- **Profile (human)**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city
- **Performance**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/performance
- **Finance**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/finance
- **Demographics**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/demographics
- **Inclusion**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/inclusion
- **Context (neighbourhood)**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/context
- **Attendance**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/attendance
- **Discipline**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/discipline
- **Outcomes**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/outcomes
- **Workforce**: https://us.ca.whatschool.ai/en/ca/school/twin-ridges-home-study-charter-nevada-city/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.*

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