DEP > BWT_859_Wards Island WPCP Campus
Wastewater Treatment Plant in New York City, NY · Wards Island · 10035
At a glance
DEP > BWT_859_Wards Island WPCP Campus is a 1,546,246-square-foot wastewater treatment plant in New York City, New York, built in 1937. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 20 out of 100 (grade D), a site energy-use intensity of 277.5 kBtu/ft² and 46,043 tCO₂e of greenhouse-gas emissions. That score is higher than 21% of the 14 scored wastewater treatment plant buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 20 (band D) |
| Site EUI | 277.5 kBtu/ft² |
| Source EUI | 685.3 kBtu/ft² |
| GHG emissions | 46,043 tCO₂e |
| GHG intensity | 29.8 kgCO₂e/ft² |
| Electricity | 102,496,106 kWh |
| Natural gas | 46,185 therms |
| Gross floor area | 1,546,246 sq ft |
| Source record | nyc:21355910:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 20 | -12 | 277.5 kBtu/ft² | 46,043 tCO₂e |
| 2023 | 32 | -3 | 239.5 kBtu/ft² | 38,585 tCO₂e |
| 2022 | 35 | 274.2 kBtu/ft² | 34,706 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- Wards Island
- City
- New York City
- State
- New York
- ZIP
- 10035
- Coordinates
- 40.78353, -73.93039
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does DEP > BWT_859_Wards Island WPCP Campus compare with other wastewater treatment plant buildings in New York City?
The latest disclosures cover 14 wastewater treatment plant buildings in New York City, out of 48,310 buildings citywide. DEP > BWT_859_Wards Island WPCP Campus's ENERGY STAR score of 20 compares with an average of 38 across the 14 that report a score; it scores higher than 21% of them and lower than 71%. Its site EUI of 277.5 kBtu/ft² is about 24% below the average of 364.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 29.8 kgCO₂e/ft² is about 17% below the group average of 35.8 kgCO₂e/ft².
At 1,546,246 sq ft, it is about 126% above the average floor area of 685,694 sq ft for those buildings. It was built in 1937, 15 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 24 wastewater treatment plant buildings average an ENERGY STAR score of 41 and a site EUI of 373.7 kBtu/ft².
How has DEP > BWT_859_Wards Island WPCP Campus's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for DEP > BWT_859_Wards Island WPCP Campus, covering report years 2022–2024. Its ENERGY STAR score went from 35 in 2022 to 20 in 2024 (-15 points); its best year on file was 2022, at 35. Site EUI moved from 274.2 kBtu/ft² (2022) to 277.5 kBtu/ft² (2024), an 1% increase. Reported emissions went from 34,706 tCO₂e to 46,043 tCO₂e over the same span (up 33%).
What does an ENERGY STAR score of 20 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 20 means the building performs better than about 20% of its national peers. BuildingCensus bands the score into report-card grades; 20 falls in band D — lowest band (1–54). It sits 55 points below 75, the threshold for ENERGY STAR certification. In New York City, 43% 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. DEP > BWT_859_Wards Island WPCP Campus's 277.5 kBtu/ft² across 1,546,246 sq ft works out to about 429.1 billion Btu (125,752 MWh-equivalent) in 2024. Its source EUI of 685.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 102,496,106 kWh of electricity and 46,185 therms of natural gas for the year.
Which law requires DEP > BWT_859_Wards Island WPCP Campus to report its energy use?
DEP > BWT_859_Wards Island WPCP Campus reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:21355910:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More wastewater treatment plant buildings in New York City
- DEP > BWT_9607_Bowery Bay WPCP Campus· 1,417,230 sq ft · score 77 (B)
- DEP > BWT_9611_Newtown Creek WPCP Campus· 1,306,271 sq ft · score 1 (D)
- DEP > BWT_840_North River WPCP Campus· 1,129,933 sq ft · score 9 (D)
- DEP > BWT_9610_Jamaica WPCP Campus· 686,240 sq ft · score 52 (D)
- DEP > BWT_9613_Owl's Head WPCP Campus· 669,680 sq ft · score 27 (D)
- DEP > BWT_9615_Red Hook WPCP Campus· 602,200 sq ft · score 36 (D)
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is DEP > BWT_859_Wards Island WPCP Campus's energy grade?
DEP > BWT_859_Wards Island WPCP Campus scores 20 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does DEP > BWT_859_Wards Island WPCP Campus use?
Its 2024 site energy-use intensity was 277.5 kBtu/ft² (685.3 kBtu/ft² source) across 1,546,246 sq ft, including 102,496,106 kWh of electricity and 46,185 therms of natural gas.
What are DEP > BWT_859_Wards Island WPCP Campus's carbon emissions?
DEP > BWT_859_Wards Island WPCP Campus reported 46,043 tCO₂e of greenhouse-gas emissions (29.8 kgCO₂e/ft²) for 2024.
Where is DEP > BWT_859_Wards Island WPCP Campus?
DEP > BWT_859_Wards Island WPCP Campus is in New York City, New York 10035. Its coordinates are 40.78353, -73.93039 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is DEP > BWT_859_Wards Island WPCP Campus and when was it built?
DEP > BWT_859_Wards Island WPCP Campus has 1,546,246 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1937 as its year built. It is classed as wastewater treatment plant.
Is DEP > BWT_859_Wards Island WPCP Campus covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “DEP > BWT_859_Wards Island WPCP Campus, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/dep-bwt-859-wards-island-wpcp-campus-90a56b24 (data as of October 2, 2026).