Ind. Admin. Code tit. 327, r. 3-6-11
Authority: IC 13-13-5; IC 13-14-8; IC 13-14-9; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-2
Affected: IC 13-11-2; IC 13-15; IC 13-18
Sec. 11. (a) The flow rate requirements for collection systems and water pollution treatment/control facilities shall be in accordance with this section. The calculated average and peak flow rate values for a collection system and its associated water pollution treatment/control facilities shall be at least equal to the average and peak daily flow rate of the existing influent plus the flow from the proposed additional service connections calculated as follows:
(1) The flow rate requirements for the average daily flow rate for residential service connections may be determined by using a general average daily flow rate value. The following method shall be used to calculate average and peak flow rate values: ADF = (General Avg) × PRSC PDF = ADF × PF
| Where: | ADF | = | Average daily flow rate expressed as gallons per residential service connection per day. | |
| = | Peak daily flow rate expressed as gallons per residential service connection per day. | |||
| General Avg | = | General average daily flow rate value in accordance in the following: | ||
| 200 gpd/unit for 1 bedroom apartment. | ||||
| 300 gpd/unit for 2 bedroom apartment. | ||||
| 310 gpd/unit for single-family homes. | ||||
| PRSC | = | Proposed number of residential service connections. | ||
| PF | = | Peak daily factor of four (4). |
(2) The flow rate requirements for the average and peak flow rate for service connections are described by Table 11-1 in subsection (b). The following method may be used to calculate the average and peak flow rate requirements: ADF = FCF × PSC PDF = ADF × PF
| Where: | ADF | = | Average daily flow rate expressed as gallons per service connection per day. |
| = | Peak daily flow rate expressed as gallons per service connection per day. | ||
| FCF | = | Flow calculation factors as contained in Table 11-1 in subsection (b). | |
| PSC | = | Proposed number of service connections. | |
| PF | = | Peak daily factor of four (4). |
(b) The following flow calculation factors shall be used in the calculations under subsection(a)(2):
| Table 11-1 | ||
| Flow Calculation Factors (FCF) | ||
| Service Connection Description | FCF (gallons per day) | |
| Agricultural labor camp | 50 per occupant | |
| Airport | 3 per passenger plus 20 per employee | |
| Assembly hall | 3 per seat | |
| Athletic field (baseball, soccer, football, etc.) | 1 per participant and spectator with additions for concessions | |
| Auction and flea market: with full kitchen | 5 per customer | |
| Auction and flea market: with warming kitchen | 4 per customer | |
| Auction and flea market: without kitchen | 3 per customer | |
| Automatic self-cleaning bathroom | 20 per cycle (3 per day) | |
| Banquet caterer | 10 per person | |
| Bar (without food) | 10 per seat | |
| Beauty salon: perm or color changes | 35 per customer | |
| Beauty salon: cut with wash | 10 per customer | |
| Beauty salon: cut without wash | 5 per person | |
| Bed and breakfast | 150 per bedroom | |
| Bowling alley (with bar and/or food) | 125 per lane | |
| Bowling alley (without food) | 75 per lane | |
| Bus station | 3 per passenger | |
| Campground (organizational) with flush toilets, showers, central kitchen | 40 per camper | |
| Campground (organizational) without flush toilets, privy use, central dining hall, no showers, handwashing | 20 per camper | |
| Campground (recreational) with individual sewer connection | 100 per campsite | |
| Campground (recreational) without individual sewer connection | 50 per campsite | |
| Church with full kitchen | 5 per sanctuary seat | |
| Church with warming kitchen | 4 per sanctuary seat | |
| Church without kitchen | 3 per sanctuary seat | |
| Condominium, multi-family dwelling: one bedroom | 200 per unit | |
| Condominium, multi-family dwelling: two bedroom | 300 per unit | |
| Condominium, multi-family dwelling: three bedroom | 350 per unit | |
| Condominium, one and two family dwelling | 150 per bedroom | |
| Conferences | 10 per attendee | |
| Correctional facilities | 120 per inmate | |
| Day care center | 20 per person | |
| Dentist | 200 per chair plus 75 per employee | |
| Doctor's office | 75 per doctor, plus 75 per nurse, plus 20 per support staff | |
| Factory with showers | 35 per employee | |
| Factory without showers | 20 per employee | |
| Fire station: manned | 75 per firefighter | |
| Fire station: unmanned | 35 per firefighter | |
| Food service operations: cocktail lounge or tavern | 35 per seat | |
| Food service operations: restaurant (not open 24 hours) | 35 per seat | |
| Food service operations: restaurant (open 24 hours) | 50 per seat | |
| Food service operations: restaurant (not open 24 hours but located along an interstate) | 50 per seat | |
| Food service operations: restaurant (open 24 hours and located along an interstate) | 70 per seat | |
| Food service operations: tavern | 35 per seat | |
| Food service operations: curb service (drive-in) | 50 per car space | |
| Golf comfort station | 3 per 50% of maximum number of golfers | |
| Golf main clubhouse | 5 per golfer with additions for food service and showers | |
| Hospital, medical facility | 200 per bed | |
| Hotel | 100 per room | |
| Kennels and vet clinics (sum of all of the following services at a facility): | ||
| 1) | a. cages; | 5 per cage10 per run |
| b. inside runs; | ||
| c. outside runs; | 20 per run | |
| d. grooming; | 10 per animal | |
| e. surgery; plus | 50 per surgery room | |
| 2) staff | 75 per veterinary doctor, plus 75 per veterinary assistant, plus 20 per support staff | |
| Mental health facility | 100 per patient | |
| Mobile home park | 200 per lot | |
| Motel | 100 per room | |
| Nursing home | 100 per bed | |
| Office building without showers | 20 per employee | |
| Office building with showers | 35 per employee | |
| Outpatient surgical center | 50 per patient | |
| Picnic area | 5 per visitor | |
| Race tracks | 5 per attendee, 20 per staff | |
| School: elementary | 15 per pupil | |
| School: secondary | 25 per pupil | |
| School with dormitory | 100 per bed | |
| Service station: convenience store/service center | 1,000 with additions for food preparation and seating | |
| Service station with only two (2) restrooms | 400 per restroom | |
| Service station with only unisex restroom | 600 per restroom | |
| Service station: automatic self-cleaning bathroom | 60 per day | |
| Shopping center | 0.1 per square foot of floor space, plus 20 per employee | |
| Swimming pool bathhouse | 10 per swimmer | |
| Theater: drive-in | 5 per car space | |
| Theater: inside building | 5 per seat |
(Water Pollution Control Division; 327 IAC 3-6-11; filed May 17, 1999, 12:11 p.m.: 22 IR 3090; errata filed May 20, 1999, 6:36 p.m.: 22 IR 3108; readopted filed Apr 11, 2005, 2:45 p.m.: 28 IR 2470; readopted filed Jun 15, 2011, 11:15 a.m.: 20110713-IR- 327110193BFA; readopted filed Jun 29, 2017, 9:34 a.m.: 20170726-IR-327170225BFA; readopted filed May 12, 2023, 1:07 p.m.: 20230607-IR-327230079BFA; readopted filed Oct 18, 2024, 1:57 p.m.: 20241113-IR-327230810RFA)