In addition to any other fees, charges, sewer rents or sanitary district taxes provided by law, the owner or tenant of any parcel of real property connected with the sewer system by any means may be required to pay an industrial wastewater surcharge for use of the wastewater treatment works for discharging industrial wastes or other wastes accepted for admission into the system other than normal sewage. The industrial wastewater surcharge shall consist of but not be limited to the following charges:
A. 
Debt service charges.
B. 
Operation and maintenance charges.
The industrial wastewater surcharge shall be based upon the measured or estimated constituents and characteristics of the wastewater discharge of the user, which may include but are not limited to flow rate, biochemical oxygen demand (BOD5), total suspended solids (TSS), total phosphorous (TP), total nitrogen (TKN) and total organic carbon (TOC). The wastewater constituents and characteristics used to calculate the industrial waste surcharge will be those determined by the Board. Any data provided by the user may be used in addition to the data obtained by the Board.
A. 
The industrial wastewater surcharge shall be computed by the Manager using the following surcharge formulas and shall apply to all industrial users, as defined in § 222-10.
Surcharge = 8.34 Q (Cx - Cx STP) $x + ...
Where:
Q
=
Flow of user's discharge in millions of gallons per day.
Cx
=
Concentration of parameter x in user's discharge in parts per million.
Cx STP
=
Sewage treatment plant design concentration of parameter x in parts per million.
$x
=
Unit charge for treatment of parameter x in dollars per pound.
B. 
The unit charge for treatment of any parameter subject to surcharge will be based on the sum of charges attributable to the capital cost of the treatment facilities and the operation and maintenance budget for that given year. "Capital cost" is defined as the total annual debt service cost for the sewage treatment plant. The "operation and maintenance cost" is defined as the net annual cost of operating and maintaining the sewage treatment plant after crediting all operating cost grants and aid.
C. 
The unit charge for any parameter will include only that portion of the capital and operation and maintenance costs which are directly attributable to the treatment of that parameter. This unit charge will be determined by the Board on an annual basis reflecting current debt retirement and operation and maintenance costs.
D. 
The unit charge ($x) for any parameter (x) subject to surcharge will be determined as follows:
$x
=
[Pcx (Capital Cost) + Pox (Operation and Maintenance Cost)] ÷ 365 ÷ Lx
Where:
Pcx
=
Percentage of annual capital cost debt retirement attributable to treatment of parameter x.
Pox
=
Percentage of annual operation and maintenance cost attributable to treatment of parameter x.
Lx
=
Average sewage treatment plant influent loading of parameter x in pounds per day.
In applying the surcharge formula, the Board may represent flow discharged into the sewer system by:
A. 
The volume of wastewater discharged into the sewer system as determined by the measurements and samples taken at a monitoring facility installed by the owner of the property served by the sewer system;
B. 
The amount of water supplied to the premises as shown on the water meter, or water records if the premises are metered. Allowances for water not discharged to the sewer system will be made at the discretion of the Board; or
C. 
A figure determined by the Board by any combination of the foregoing or by any other equitable method.
The pollutant concentration of any wastewater shall be determined from the analysis of representative samples taken prior to discharge into the sewers, taken by representatives of the Board at sampling stations as described in § 222-37 of this Part 2, at any period or time or of such duration and in such a manner as the Board may elect or at any place or manner mutually agreed upon between the user and the Board. The intent of any sampling procedure is to establish the pollutant concentration in the wastewater discharge during an average or typical working day. This concentration may be derived according to the best judgment of the Board. The analysis of samples taken shall be performed in a laboratory of the treatment plant or a laboratory designated by the Board. The industrial waste surcharge and/or the acceptability of the wastes shall be determined from said analysis. All surcharges shall be based on the analysis of the wastes from any plant or premises related to total volume of wastes determined under § 222-50 above. The average value of the concentration of pollutants measured during a calendar year shall be used in calculating the industrial waste surcharge. Whenever the wastes discharged from a premises to a public sewer might be expected to show appreciable periodic variation during the year due to manufacturing process or production variation due to seasonal changes, the Board may average the results of the two (2) or more series of analysis taken to reflect these variations and thereby determine an average pollutant concentration.
In the event that a user disputes the pollutant concentration of his or her wastewater discharge determined in accordance with § 222-51 above, a program of resampling and flow measurement with subsequent analytical determination may be instituted as follows:
A. 
The user must submit a request for resampling of the wastes and flow measurement to the Board.
B. 
An independent consultant or agency of recognized professional standing in the employ of the user must confer with representatives of the Board in order that an agreement may be reached as to the various factors which must be considered on a new sampling and flow measurement program.
C. 
The consultant or agency of recognized professional standing employed by the user shall conduct a resampling and reanalysis program, under the direction of the Board, for at least two (2) twenty-four-hour periods.
D. 
The results of the resampling and the reanalysis shall be considered to be the current analysis of the wastes discharged to the sewer system and shall be used for determining the acceptability of the sampling and analysis results in question. The new results may be used in place of the results in question or in addition to other data collected by the Board for determining the industrial waste surcharge and/or compliance with the Board's rules and regulations.
E. 
All costs of sampling, analysis and flow measurements are to be paid by the user.
Payment of the industrial waste surcharge within the time period allotted by the Joint Sewage Board shall be made to the Board by the industrial user after receiving the industrial wastewater surcharge bill unless other arrangements for payment have been made and approved by the Board. A user's failure to submit timely payment of any industrial wastewater surcharge will subject the user to the penalties and fines prescribed under Article IX of this Part 2.