Section 410IAC6-10.1-60. Sewage flows

   (a) Sewage flows for commercial on-site sewage systems shall be determined from Table I as follows:

Table I - Estimated Sewage Flows
Type of Establishment			Design Daily Flow (gpd)
Agricultural Labor Camp			50 per occupant
Airport1			3 per passenger
			20 per employee
Apartment/Condominium			200 per one-bedroom
			300 per two-bedroom
			350 per three-bedroom
Assembly Hall1			3 per seat
Athletic Field1			1 per participant and spectator
Auction and Flea Market1			3 per customer
Banquet Caterer1			5 per person + 100 for dishwashing
Beauty Salon
	a) Perm or color changes		35 per customer
	b) Stylist		20 per stylist
	c) Cut with wash		10 per customer
	d) Cut without wash		5 per customer
Bed and Breakfast			150 per bedroom
Bowling Alley
	a) With bar or food, or both		125 per lane
	b) Without food service		75 per lane
Bus Station1			3 per passenger
Campground
	a) Day camp		20 per camper + 20 per staff
	b) RV, with sewer hookup		50 per campsite
	c) RV, without sewer hookup		50 per campsite
	d) RV dump station		Included above, or 20 per campsite if on separate system
	e) Youth camp		40 per camper + 40 per staff
	f) Cabins within campgrounds
		1) without restroom	50 per cabin
		2) with restroom	75 per cabin per bedroom
		3) with restroom and kitchen	100 per cabin per bedroom
Church
	a) With full kitchen		5 per sanctuary seat
	b) With warming kitchen		4 per sanctuary seat
	c) Without kitchen		3 per sanctuary seat
Coffee Shop1			6 per customer + 20 per employee
Conference Center/Meeting Rooms1			20 per attendee
Correctional Facilities			120 per inmate + 20 per employee
Day Care Centers			20 per child + 20 per employee
Dentist's Office			5 per patient
			75 per dentist
			75 per dental technician
			20 per support staff
Department Store1			0.1 per square foot
Banquet Hall
	a) with food preparation		10 per seat
	b) without food preparation		5 per seat
Doctor's Office			75 per doctor
			75 per nurse
			20 per support staff
Dormitory/Residence Hall			100 per person
Factory1
	a) With showers		35 per employee
	b) Without showers		20 per employee
Fairground1			3 per visitor
Emergency Station
	a) Manned with firefighters		75 per firefighter
	b) Unmanned with firefighters		20 per firefighter
	c) EMT station		35 per EMT
Food Service Operations
	a) Fast food restaurant		50 per seat
	b) Restaurant (not 24-hour)		35 per seat
	c) Restaurant (24-hour)		50 per seat
	d) Restaurant (not 24-hour), along interstate		50 per seat
	e) Restaurant (24-hour), along interstate		70 per seat
	f) Tavern/bar/cocktail lounge		35 per seat
Golf Course/Mini Golf1
	a) Comfort station (mid-course)		1.5 times max number of golfers
	b) Restroom (main clubhouse)		5 times max number of golfers
Hotels1			100 per room
Kennels and Vet Clinics
	a) Cages		5 per cage
	b) Inside runs		10 per run
	c) Outside runs		20 per run
	d) Grooming		10 per animal
	e) Surgery		25 per surgery room
	f) Staff		75 per veterinary doctor
			75 per veterinary assistant
			20 per support staff
Mobile Home Park			200 per lot
Motel1			100 per room
Nursing Home			100 per bed + 20 per employee
Office Building1
	a) Without showers		20 per employee
	b) With showers		35 per employee
Picnic Area			5 per visitor
Race Tracks1
	a) Attendee		5 per attendee
	b) Staff		20 per staff
Residential Cluster (5 House Min.)			120 per bedroom
School
	a) Elementary		15 per student
	b) Secondary		25 per student
	c) Amish		10 per student + 10 per staff
	d) Boarding		75 per person
			150 per bedroom
Convenience Store/Service Station/Gas Station1
	a) Truck stop		1,000
		with showers	30 per trucker
	b) Small convenience store/service center/gas station		1,000
		with fast food service	10 per seat
Single-family dwelling or duplex not on cluster system			150 per bedroom
Swimming Pool Bathhouse			10 per swimmer
Theater1
	a) Drive-in		10 per car space
	b) Inside building		5 per seat
Visitor Center			5 per visitor
1These estimated flows do not include food service. If food service is provided, additional flows must be assigned, based on the type of food service and hours of operation.

  (b) For establishments not listed in Table I, contact the Division of Environmental Public Health of the department for assistance with determining flows.

  (c) Designs for flows less than estimated from Table I may be considered based on substantial evidence (such as water meter readings) that lower flows will occur. Flow data from similar installations of equal capacity and similar surroundings may be considered on an individual basis. (Indiana State Department of Health; 410 IAC 6-10.1-60; filed Oct 19, 2012, 2:07 p.m.: 20121114-IR-410120157FRA)