Case StudyMultifamily Residential · Orange, NJ · Flow Dynamics M&V Verified

Jefferson Arms — Orange, NJ
14.7% Water Reduction · $3,700/yr Saved

28-unit apartment building. Municipal water supply, 2″ meter. Occupancy constant and consumption consistent throughout measurement period.

14.7%Water ReductionMetered, M&V verified

420,000Gallons Saved/Year420K gal annually

$3,700Annual SavingsWater only

15 MonthsPayback PeriodFrom install date

Daily Water Consumption — Before vs After

Before: Jan 2013–Nov 2014 · After: Nov–Dec 2014 · Rate: $6.65/CCF

Consumption dropped from 7,400 to 6,550 gallons per day — a 14.7% reduction. Occupancy was constant and consumption was consistent throughout.

Annualized Water Cost — Before vs After

Projected at $6.65/CCF · USD

At $6.65/CCF, a 14.7% reduction on 7,400 gal/day saves approximately $3,700 per year — 420,000 gallons annually.

14.7%

Water Reduction

Metered consumption

$3,700

Annual Savings

420,000 gallons/yr

15 Months

Payback Period

From installation date

Key Findings

Occupancy constant — clean measurement

Occupancy was constant and water consumption was consistent throughout both measurement periods, giving the 14.7% reduction strong statistical validity with no occupancy-driven variable.

Long pre-install baseline — Jan 2013 to Nov 2014

The pre-installation baseline spans nearly two full years, providing exceptional measurement confidence. The 21-month window eliminates seasonal variation and establishes a highly reliable average.

2" meter, 28-unit building — 420,000 gallons/yr saved

At $6.65/CCF, 420,000 gallons saved annually translates to $3,700/yr — with a 15 Months payback that fits inside most HOA and management company budget cycles.

Consistent with Orange NJ portfolio pattern

This result joins 451 Central Ave (12.5%) and 500 Main St (26%) as a third Flow Dynamics-verified case study in Orange, NJ — confirming consistent performance across the municipality's water infrastructure.