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FORM B: CALCULATION OF INDUSTRIAL WASTEWATER DISCHARGE FLOW RATE - page 1 / 2

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FORM B: CALCULATION OF INDUSTRIAL WASTEWATER DISCHARGE FLOW RATE

COMPANY NAME:

Calculation of flow rate is based on: (Check one)

Adjusted metered water supply (Company must complete the calculations below) Direct measurement through a Districts' approval effluent flow measurement system * Estimate for a facility not yet in operation **

ADJUSTED METERED WATER SUPPLY CALCULATIONS (Round all figures to two decimals)

I

Incoming Water

  • 1.

    Metered Water Supply from Purveyor (Water Company). Use most recent 12 consecutive months and attach copies of water bills.

  • 2.

    Water Supply from Company Well. Attach meter or water master data for most recent 12 consecutive months.

  • 3.

    Water Received in Raw Materials, or by other means. Explain in attachments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  • 4.

    Rainwater/Groundwater Discharged to the Sewerage System. Explain in attachments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  • 5.

    Total Incoming Water.

(add lines 1 to 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MILLION GALLONS PER YEAR

MGY

MGY

MGY

MGY

MGY

Explain in attachments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Sanitary Flow Deduction.

MGY

(from line "e" on the back of this form) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Total Water Loses.

MGY

(add lines 6 to 9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MGY

MGY

MGY

MGY

MGY

MGY

II

(add lines a + b + c + d at the bottom of this form) . . . . . . . . . . . . . . . . . . . . . 8 Water Lost in Products.

III

Water Losses 6 Wastewater Discharged to Stormwater Drainage System.

Explain in attachments.

(NPDES Permit No.

7 Water Lost Through Evaporation and Irrigation.

).........

Industrial Wastewater Discharged 11 Calculated Industrial Wastewater Discharged to the public sewer. (subtract line 10 from line 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Any Proposed increase (+) or decrease (-) in industrial waste- water discharge to the public sewer? (explain in attachments) . . . . . . . . . . . 13 Total proposed yearly industrial wastewater discharge. (add lines 11 and 12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Average industrial wastewater flow. (use line 13 to calculate below) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Enter or Circle one (+) (-)

x

1,000,000

÷

Discharge Days

=

x

1,000,000

÷

per Year

=

MILLION GALLONS PER YEAR

Number of

Gallons per Day

This is the average daily flow rate that must be used on the application for industrial wastewater discharge. (It may be rounded to two significant figures).

Note: The applicant must also complete the calculations on the back of this page.

  • *

    If your company currently has an approved effluent wastewater flow measurement system, please submit effluent

totalizer readings for the last twelve months. Your company does not have to complete the rest of this form. ** The company must submit detailed information that substantiates how the flow rate was estimated.

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