A-382.33 (9) (g) 4. REFRIGERATED FOOD STORAGE ROOMS, COMPARTMENTS AND DISPLAY CASES.
A-382.33 (9) (g) 5. MISCELLANEOUS FOOD HANDLING EQUIPMENT.
A-382.34 (4)-1. GARAGE CATCH BASINS.
A-382.34 (4)-2. TRAPPED FIXTURES DISCHARGING TO CATCH BASIN.
A-382.34 (4)-3. TRAPPED FIXTURE DISCHARGING INTO GARAGE CATCH BASIN.
A-382.34 (4)-4. FIXTURES WITHOUT TRAPS DISCHARGING TO CATCH BASIN.
A-382.34 (4)-5. GARAGE CATCH BASIN WITH FIXTURES ON SEPARATE FLOOR LEVELS.
A-382.34 (4)-6. GARAGE CATCH BASIN RECEIVING PRESSURIZED DRAINS.
A-382.34 (5) (b)-1. EXTERIOR GREASE INTERCEPTORS.
A-382.34 (5) (b)-2. EXTERIOR GREASE INTERCEPTORS.
A-382.34 (5) (c) INTERIOR GREASE INTERCEPTORS.
A–82.34 (6) AUTOMATIC CAR WASHES.
A-382.34 (7) COMMERCIAL LAUNDRIES. See also A-382.33 (9)-4. for trench type interceptors.
A-382.34 (8) OIL AND FLAMMABLE LIQUIDS INTERCEPTOR. Vents as shown must terminate independently.
A-382.34 (13) PLASTER AND HEAVY SOLIDS TRAP TYPE INTERCEPTORS.
A-382.34 (14) CHEMICAL DILUTION AND NEUTRALIZING BASINS.
A-382.35 (3) CLEANOUTS SERVING HORIZONTAL DRAINS WITHIN OR UNDER A BUILDING.
A-382.35 (5) (a) CLEANOUT EXTENSION TO GRADE.
A-382.35 (8) OUTSIDE DROP INTO AN EXISTING MANHOLE.
A-382.36 (3) SOURCES OF POLLUTANTS IN WISCONSIN STORMWATER.
Sources of Pollutants in Wisconsin Stormwater
Geometric Mean Concentrations of Contaminants in Runoff from Source-Area and Storm-Sewer Outfalls
- See PDF for table 
Source: Bannerman, R.T.; Owens D.W.; Dodds, R.B.; and Hornewer, N.J., 1993, Sources of Pollutants in Wisconsin Stormwater: Water Science Technology, v.28, nos. 3-5, pp. 241-259.
Note: Single dash indicates source area is not in the land use; double dash indicates insufficient data; and triple dash indicates values are shared with those above for the same source area. The relatively large concentrations of zinc in roof runoff indicate that galvanized roofing materials were a source of the zinc. One-third of the residential roofs had galvanized downspouts. Roofing materials also might be a source of copper and lead in the runoff from residential roofs. Concentrations of dissolved copper and total recoverable copper and lead were slightly larger in the residential roof runoff than in runoff from driveways and lawns.
Note: The department has accepted that a “visible sheen” is defined as 15 mg/L grease and oil.
A-382.36 (3)-1. BEST MANAGEMENT PRACTICES (BMPs). A description of the proposed best management practices to be used for stormwater management in the protection of water quality include, but are not limited to, the following:
a. Detention, retention and sedimentation facilities, including plans for discharges from the facilities, maintenance plans and predictions of water quality.
b.
Areas of the site to be used or reserved for infiltration including a prediction of the impact on groundwater quality.
c.
Any other relevant volume controls or measures.
d.
Any other relevant source control practices not described.
e.
Any treatment device, including plans for discharges from the facilities, maintenance plans and predictions of water quality.
Note: Section NR 151.002 (4) reads: “`Best management practices' or `BMPs' means structural or non-structural measures, practices, techniques or devices employed to avoid or minimize soil, sediment or pollutants carried in runoff to waters of the state.”
A-382.36 (4)-1. RATIONAL METHOD. The equation procedure for using the rational method formula is as follows:
Q = Aci (in cubic feet per second)
Where: Q = Runoff (in cubic feet per second)
A = Drainage area (in acres)
c = Coefficient of runoff (a dimensionless number)
i = Intensity of rainfall (in inches per hour)
Q = (0.0104)ciA (in gallons per minute)
(1/96)ciA
Where: Q = Runoff (in gallons per minute)
c = Coefficient of runoff (a dimensionless number)
i = Intensity of rainfall (in inches per hour)
A = Drainage area (in square feet)
A-382.36 (4)-2. RUNOFF COEFFICIENTS. Tables Detail A and B are for using the rational formula.
Source: Wisconsin department of transportation (WDOT), Facilities Development Manual (July 2, 1979), Procedure 13-10-5.
Source: Wisconsin department of transportation (WDOT), Facilities Development Manual (July 2, 1979), Procedure 13-10-5.
Note: The lower “C” values in each range should be used with the relatively low intensities associated with 2- to 10-year design recurrence intervals whereas the higher “C” values should be used for intensities associated with the longer 25- to 100-year design recurrence intervals.
Note: In parking lot runoff, visible sheen has been accepted as having an oil concentration of 15 mg/L.
A-382.36 (4)-3. OTHER METHODS OR MODELS. A model that calculates peak flow such as TR-55, P8 or an equivalent methodology may be used.
Information on how to access P8 is available at the department of natural resources webpage:
http://dnr.wi.gov/runoff/models/ or contact the stormwater coordinator in the runoff management section of the bureau of watershed management at the department of natural resources at phone 608-267-7694.
A simplified TR-55 approach, TR-55 (210-vf-TR-55, second edition, June 1986), may be obtained by accessing the USDA NRCS webpage:
http://dnr.wi.gov/runoff/models/.
A-382.36 (6)-1. THE FORMULA FOR SOLVING FOR DIAMETER, D FOR ROOF CONDUCTORS.
A-382.36 (9) (b) AREA DRAIN INLETS.
A-382.36 (9) (b) 3. INLET GRATES.
GRATES FOR HORIZONTAL PIPING
GRATES FOR VERTICAL PIPING
FORMULA TO CALCULATE CAPACITY, IN CUBIC FEET PER SECOND:
Q = 2/3 A C (2gh)1/2
Where: Q = the capacity of the inlet, cfs
2/3 = a factor to correct for assumed blockage of 1/3 of the inlet's net open area
