13.04.080 Calculation of Connection Charges.
A. General. Unless a County ordinance prescribing the method of calculating the connection charges rate for a given area has been adopted and except as provided in PCC 13.04.077 and 13.04.085 E., the following connection charge formulas shall be used to calculate the connection charges required to connect to the public sewer system within the Sewer Service Area. These formulas use the definitions described in PCC 2.05.040 C.8. Taken together, these charges shall constitute the connection charges.
B. Connection Charges Formulas.
1. Area Charge Formula. The area charge may include a portion of or all of the year zero capital costs associated with the construction of the public sewer system. For each parcel, the area charge in year N following year zero shall be as follows:
|
Area Charge = (A/B) x C x D |
||
|
Where |
A = |
Total year zero capital costs for public sewer facilities serving a designated area as described in PCC 13.04.070; |
|
B = |
The total anticipated wastewater flow generated within a designated area expressed in REs; |
|
|
C = |
The estimated or actual flow in gallons per day (GPD) of a proposed or existing user divided by 220 GPD (1 RE); and |
|
|
D = |
[(1 + BIR year zero) x ... (1 + BIR year N)]. |
|
2. Latecomers Charge Formula. The latecomers charge may include a portion of or all of the eligible year zero capital costs associated with one or more applicant-funded public sewer facilities for which the County has contractual obligation(s) to reimburse the applicant(s) plus an administrative fee. The calculation of the reimbursable costs and administrative fee shall be governed by the latecomers agreement(s) associated with the applicant-funded public sewer facilities for the duration of the agreement(s). The administrative fee shall be calculated pursuant to PCC 13.10.050.
3. Treatment Plant Capacity Charge Formula. The treatment plant capacity charge may include a portion of or all of the year zero capital costs of all treatment plant facilities serving a designated area plus any associated financing costs. For each property, the treatment plant capacity charge in year N following year zero shall be as follows:
|
Treatment Plant Capacity Charge = (A/B) x C x D x E x F |
||
|
Where |
A = |
Total year zero capital costs for the WWTP(s) serving a designated area; |
|
B = |
The total rated capacity of the WWTP(s) serving a designated area expressed in REs; |
|
|
C = |
The estimated GPD flow of a proposed user divided by 220 GPD (1 RE); however, in all cases the RE shall not be less than 1.0; |
|
|
D = |
The estimated BOD of the proposed user (a minimum of 225 mg/l) divided by 225 mg/l times 3.E; |
|
|
E = |
The estimated TSS of the proposed user (a minimum of 225 mg/l) divided by 225 mg/l; and |
|
|
F = |
[(1 + BIR year zero) x ... (1 + BIR year N)]. |
|
4. Affordable Housing Connection Charge Waiver. Sewer connection charges paid to the Department for new residential construction may be waived if a proposed development meets the requirements of Chapter 18A.65 PCC and if sufficient funds have been appropriated by the Pierce County Council to the Sewer Utility Funds to replace those connection charges waived or refunded to the applicant.