Design Loadings

New Bedford Water Pollution Control Facility

Design Loadings 1995 2015
Sewered Population
New Bedford 99,519 110,355
Dartmouth 2,300 2,300
Acushnet 2,743 5,232
TOTAL: 104,562 117,887
Total Annual Ave. Daily 26.5 29.6
Peak Day 75 75
Minimum Day 15 19
Influent BOD5 (lbs/d)
Average Daily 38,450 47,100
Maximum-Month Daily 57,700 70,700
Maximum Day 69,200 84,800
Influent Suspended Solids (lbs/d)
Average Daily 41,700 56,100
Maximum-Month Daily 66,700 89,800
Maximum Day 79,200 106,600
Design Screenings Volume (cu ft/d)
Average 135 150
Maximum-Month 177 193
Design Grit Volume (cu ft/d)
Average 149 167
Maximum-Month 196 214
Design BOD5 (lbs/d)(1)
Average Daily 41,000 50,500
Maximum-Month Daily 61,200 75,300
Maximum Day 73,800 90,900
Design Suspended Solids (lbs/d)(1)
Average Daily 47,400 63,800
Maximum-Month Daily 75,900 102,000
Maximum Day 90,100 121,200
  1. Includes solids processing sidestreams
  2. High groundwater season
  3. For Maximum-Month Loadings during high groundwater season

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