SEWAGE FLOW FROM DIFFERENT CLASSES OF DISTRICTS BASED ON 1915 REPORT OF MILWAUKEE SEWERAGE COMMISSION
────────────────────────────────────────────────────────────────┬────── Ratio of maximum to average rate for department store district. │ 1.755 Ratio of maximum to average rate for hotel district. │ 1.65 Ratio of maximum to average rate for office building district. │ 1.51 Ratio of maximum to average rate for wholesale commercial │ district. │ 2.1 │ │——————│—————— Average and maximum gallons per thousand square feet of │ │ floor area: │ Avg. │ Max. │——————│—————— For department store district. │ 232│ 407 For office building district. │ 541│ 891 For wholesale commercial district. │ 164│ 344 For all districts except wholesale commercial. │ 381│ 618 │ │ Average and maximum gallons per day: │ │ For all districts except wholesale commercial. │17,700│29,800 For wholesale commercial district. │ 9,650│20,000 ─────────────────────────────────────────────────────────┴──────┴──────
RATES OF CONSUMPTION PREDICTED FOR DIFFERENT DISTRICTS IN NEW YORK CITY
────────────┬───────────┬──────┬────────┬────────┬───────── │ Net Bldg. │ │Observed│Observed│ │Area in Sq.│ Avg. │Cons. in│Cons. in│Predicted District │ Ft. per │Number│ g.p.d. │ g.p.d. │ Mean │ Acre for │ of │per 1000│per 1000│ Cons. │ Ultimate │Floors│Sq. Ft. │Sq. Ft. │ │Consumption│ │ Max. │ Avg. │ ────────────┼───────────┼──────┼────────┼────────┼───────── Hotel and │ 24,800│ 15│ 634│ 526│ 500 midtown. │ │ │ │ │ Midtown and │ 24,800│ 15│ 338│ 219│ 300 financial.│ │ │ │ │ East and │ │ │ │ │ West of │ 24,800│ 10│ 297│ 230│ 300 midtown. │ │ │ │ │ Apartment, │ │ │ │ │ 59th to │ 20,400│ 7│ │ 230│ 300 155th Sts.│ │ │ │ │ Manhattan │ │ │ │ │ north of │ 20,400│ 5│ │ 230│ 300 155th St. │ │ │ │ │ ────────────┴───────────┴──────┴────────┴────────┴─────────
────────────┬─────────┬─────────┬─────────┬────────┬──────── │Predicted│Predicted│Predicted│Measured│Measured │ Mean in │ Dry │Max. Dry │Avg. Dry│Max. Dry District │ Million │ Weather │ Weather │Weather │Weather │Gals. per│ Flow, │ Flow, │ Flow, │ Flow, │Acre per │ c.f.s. │ c.f.s. │ c.f.s. │ c.f.s. │ Day │per Acre │per Acre │per Acre│per Acre ────────────┼─────────┼─────────┼─────────┼────────┼──────── Hotel and │ .20 │ .29│ .34│ 1.04 │ .146 midtown. │ │ │ │ │ Midtown and │ .12 │ .18│ .23│ .078│ .110 financial.│ │ │ │ │ East and │ │ │ │ │ West of │ .074│ .12│ .15│ .057│ .097 midtown. │ │ │ │ │ Apartment, │ │ │ │ │ 59th to │ .043│ .06│ .09│ │ 155th Sts.│ │ │ │ │ Manhattan │ │ │ │ │ north of │ .031│ .05│ .08│ │ 155th St. │ │ │ │ │ ────────────┴─────────┴─────────┴─────────┴────────┴────────