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Storage Calculations
Per person/activity/day (unless otherwise specified)
Domestic dwellings
Flow (l)
BOD (g)
Ammonia as N
Standard residential
150
60
8
Mobile home type caravans with full services
150
60
8
Industrial
Flow (l)
BOD (g)
Ammonia as N
Office/factory without canteen
50
25
5
Office/factory with canteen
100
38
5
Open industrial site e.g. construction, quarry, without canteen
60
25
5
*Full-time day staff
90
38
5
*Part-time staff (4hr shift)
45
25
3
*Staff figures also apply to other applications
Hotels, pubs and clubs
Flow (l)
BOD (g)
Ammonia as N
Hotel guests (prestige hotels)
300
105
12
Hotel guests (3* and 4* hotels)
250
94
10
Guests (bedroom only – no meals)
80
50
6
Residential training/conference guest (inclusive all meals)
350
150
15
Non-residential conference guest
60
25
2.5
Drinkers
12
15
5
Holiday camp chalet resident
150
94
10
Resident staff
180
75
10
Restaurants:
Luxury catering (full meals)
30
25
15
Pre-prepared catering (full meals)
15
12
12
Snack bars and bar meals
38
30
19
Function rooms, including buffets
19
12
15
Fast food, i.e. (roadside restaurants)
4
2.5
2.5
Fast food meals (burger chains and similar)
2.5
2.5
4
Students (accommodation only)
100
60
8
Schools
Flow (l)
BOD (g)
Ammonia as N
Non-residential with canteen cooking on site
90
38
5
Non-residential without a canteen
50
25
5
Boarding school:
Residents
175
90
60
Day staff (inc. mid-day meal)
38
8
5
Amenity sites
Flow (l)
BOD (g)
Ammonia as N
Toilet blocks (per use)
10
12
2.5
Toilet (WC) (per use)
10
12
2.5
Toilet (urinal) (per use)
5
12
2.5
Toilet blocks in long-stay car parks/lorry parks (per use)
10
19
4
Shower (per use)
40
19
2
Golf club
20
19
5
Local community sports club, e.g. squash, rugby & football
40
25
6
Swimming (where a separate pool exists without an associated sports centre)
10
12
2.5
Health club/sports centre
50
19
4
Tent sites
75
44
8
Caravan sites:
Touring not serviced
100
100
150
Static not serviced
44
44
60
Static fully serviced
8
8
8
Hospitals and residential care homes,
Flow (l),
BOD (g),
Ammonia as N
Residential old people/nursing,
350,
110,
13
Small hospitals,
450,
140,
Assess
Large hospitals
Assess individually
