Park Gardens — East Orange, NJ
21% Water Reduction · $8,166/yr Saved
48-unit apartment building. Municipal water supply, 2″ meter. Billed on water & sewer. Flow Dynamics M&V-verified results — 98% occupancy during measurement.
Before: Dec 2014–Dec 2015 · After: Jan–Apr 2016 · Rate: $0.0188/gal
Consumption dropped from 5,776 to 4,586 gallons per day — a 21% reduction. Occupancy held at 98% throughout.
Projected at $0.0188/gal · Water + Sewer combined · USD
At $0.0188/gal (water + sewer), a 21% reduction on 5,776 gal/day saves approximately $8,166/yr — 434,350 gallons annually.
Key Findings
Because East Orange bills on both water and sewer, every gallon saved reduces two line items. The $8,166/yr figure reflects the combined utility impact at $0.0188/gal — a rate that captures both charges.
With 98% occupancy held constant throughout the measurement period, the 21% reduction is directly attributable to the Smart Valve™ installation with minimal occupancy noise.
The pre-installation measurement window spans a full year (Dec 2014–Dec 2015), capturing all seasonal patterns. This eliminates temperature- or usage-driven seasonal variation from the result.
At 48 units, this building saves 434,350 gallons annually. For similarly-sized NJ buildings with combined water+sewer billing, this result provides a strong precedent for ROI projections.
Property Details
* Annual savings of $8,166 derived from 434,350 gal × $0.0188/gal (water + sewer combined rate). The source PDF does not list an explicit dollar figure — only gallons saved and payback months.
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