Kolb Middle School
K-12 School in California, CA · 2351 N. Spruce St., Rialto · 92377
At a glance
Kolb Middle School is a 87,230-square-foot K-12 school at 2351 N. Spruce St., Rialto in Rialto, California, built in 1968. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 10 out of 100 (grade D), a site energy-use intensity of 152.2 kBtu/ft² and 24 tCO₂e of greenhouse-gas emissions. That score is higher than 2% of the 2,016 scored K-12 school buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 10 (band D) |
| Site EUI | 152.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 24 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 106,831 kWh |
| Gross floor area | 87,230 sq ft |
| Source record | california:28480485:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 10 | -88 | 152.2 kBtu/ft² | 24 tCO₂e |
| 2023 | 98 | -2 | 27.7 kBtu/ft² | 27 tCO₂e |
| 2022 | 100 | 22.3 kBtu/ft² | 4 tCO₂e |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 2351 N. Spruce St., Rialto
- City
- California
- State
- California
- ZIP
- 92377
- Coordinates
- 34.14138, -117.38609
Within ~1 km
Nearby benchmarked buildings
No other benchmarked buildings within ~1 km.
See also: most efficient in California · biggest emitters
How does Kolb Middle School compare with other K-12 school buildings in California?
The latest disclosures cover 2,128 K-12 school buildings in California, out of 40,029 buildings citywide. Kolb Middle School's ENERGY STAR score of 10 compares with an average of 74 across the 2,016 that report a score; it scores higher than 2% of them and lower than 98%. Its site EUI of 152.2 kBtu/ft² is about 340% above the average of 34.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 86% below the group average of 2.0 kgCO₂e/ft².
At 87,230 sq ft, it is about 32% below the average floor area of 129,123 sq ft for those buildings. It was built in 1968, 8 years earlier than the group's average year built (1976). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has Kolb Middle School's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Kolb Middle School, covering report years 2022–2024. Its ENERGY STAR score went from 100 in 2022 to 10 in 2024 (-90 points); its best year on file was 2022, at 100. Site EUI moved from 22.3 kBtu/ft² (2022) to 152.2 kBtu/ft² (2024), an 583% increase. Reported emissions went from 4 tCO₂e to 24 tCO₂e over the same span (up 505%).
What does an ENERGY STAR score of 10 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 10 means the building performs better than about 10% of its national peers. BuildingCensus bands the score into report-card grades; 10 falls in band D — lowest band (1–54). It sits 65 points below 75, the threshold for ENERGY STAR certification. In California, 65% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Kolb Middle School's 152.2 kBtu/ft² across 87,230 sq ft works out to about 13.3 billion Btu (3,891 MWh-equivalent) in 2024. The disclosure also reports 106,831 kWh of electricity for the year.
Which law requires Kolb Middle School to report its energy use?
Kolb Middle School reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record california:28480485:2024). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
More K-12 school buildings in California
- Bella Vista Elementary· 87,136 sq ft · score 100 (A)
- Notre Dame High School San Jose· 87,039 sq ft · score 66 (C)
- Trident Education Center· 87,039 sq ft · score 8 (D)
- Grant Elementary· 87,007 sq ft · score 88 (A)
- Muraoka (Saburo) Elementary· 87,000 sq ft · score 90 (A)
- Saint Paul The Apostle Church & School· 86,966 sq ft · score 78 (B)
- K-12 School buildings in California· 2,128 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is Kolb Middle School's energy grade?
Kolb Middle School scores 10 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Kolb Middle School use?
Its 2024 site energy-use intensity was 152.2 kBtu/ft² across 87,230 sq ft, including 106,831 kWh of electricity.
What are Kolb Middle School's carbon emissions?
Kolb Middle School reported 24 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2024.
Where is Kolb Middle School?
Kolb Middle School is at 2351 N. Spruce St., Rialto, in Rialto, California 92377. Its coordinates are 34.14138, -117.38609 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Kolb Middle School and when was it built?
Kolb Middle School has 87,230 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1968 as its year built. It is classed as K-12 school.
Is Kolb Middle School covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
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About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Kolb Middle School, Rialto, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/kolb-middle-school-5c91082c (data as of July 9, 2026).