The funds received from the collection of the charges authorized
by this chapter shall be deposited as collected. The user charge portion
shall be used for operation, maintenance and replacement costs and
the debt service portion shall be used for debt service, including
all reserves and other funds required to be established and maintained
under authorized bonds and improvements of the wastewater facilities,
except that the portion of any such funds which is limited to a particular
use by applicable state or federal rules or regulations shall be used
in compliance with such restrictions.
The cost to be recovered pursuant to this chapter and the cost to be fixed by the City in §
508-11B shall be determined and allocated in each of the following categories:
A. Category "A" (user charge system). Operation, maintenance and replacement
of existing and proposed wastewater facilities.
[Last amended by Ord. No.
11-29]
A fixed rate charge will be assessed to each user for each connection
to private interceptor main sewer or wastewater facilities by water
meter size.
[Amended by Ord. No. 12-14]
A surcharge will be assessed to any user discharging BOD, suspended solids, total phosphorus and ammonia nitrogen loadings to the wastewater facilities in excess of those concentrations defined in §
508-3 and shall be determined as follows:
A. For Category "A." Unit costs for BOD and suspended solids shall be
calculated by apportioning the Category "A" costs associated with
the treatment of BOD, suspended solids, total phosphorus and ammonia
nitrogen that year and then dividing each apportioned cost by the
total estimated BOD, suspended solids, total phosphorus and ammonia
nitrogen to be received at the wastewater treatment plant in that
year. The formula for this unit cost calculation is:
|
BOD: Annual Category "A" costs associated with BOD
removal
Estimated annual BOD in 100 lbs.
|
= $__________/100 lbs. BOD
|
|
SS: Annual Category "A" costs associated with SS
removal
Estimated annual SS in 100 lbs.
|
= $__________/100 lbs. SS
|
|
TP: Annual Category "A" costs associated with TP
removal
Estimated annual TP in lbs.
|
= $__________ lb. TP
|
|
AN: Annual Category "A" costs associated with AN
removal
Estimated annual AN in lbs.
|
= $__________ lb. AN
|
(1) The BOD, suspended solids, total phosphorus and ammonia nitrogen
loads in excess of the allowable concentrations shall be utilized
to determine the surcharge. The excess BOD, suspended solids, total
phosphorus and ammonia nitrogen load shall be calculated by subtracting
the allowable BOD, suspended solids, total phosphorus and ammonia
nitrogen concentrations from the actual concentration discharged and
then determining the excess pounds of BOD, suspended solids, total
phosphorus and ammonia nitrogen. The formula for this calculation
is as follows:
|
Excess BOD: (Actual mg/l - 175 mg/l BOD) x (user's billable
flow in mg) x 8.34 = lbs. BOD
|
|
Excess SS: (Actual mg/l - 170 mg/l SS) x (user's billable flow
in mg) x 8.34 = lbs. SS
|
|
Excess total phosphorus (TP): (Actual mg/l - 6 mg/l total phosphorus)
x (user's billable flow in mg) x 8.34 = lbs. total phosphorus
|
|
Excess ammonia nitrogen (AN): (Actual mg/l - 25 mg/l AN) x (user's
billable flow in mg) x 8.34 = lbs. ammonia nitrogen
|
(2) The surcharge shall be calculated by multiplying the excess pounds
of BOD, suspended solids, total phosphorus and ammonia by the appropriate
unit cost for each category. The formula for this calculation is as
follows:
|
BOD: ($__________/100 lbs. BOD) x (excess BOD per billing period
in 100 lbs.) = $__________
|
|
SS: ($__________/100 lbs. SS) x (excess SS per billing period
in 100 lbs.) = $__________
|
|
Total phosphorus: ($__________/lbs. total phosphorus) x (excess
total phosphorus per billing period in lbs.) = $__________
|
|
Ammonia nitrogen: ($__________/lbs. ammonia nitrogen) x (excess
ammonia nitrogen per billing period in lbs.) = $__________
|
[Last amended 6-2-2015 by Ord. No. 15-15]
A. Effective date. The sewer service charges hereby established shall
be effective June 16, 2015, January 2, 2016 and January 2, 2017.
B. Sewer service charge. The sewer service charge shall be as follows:
(1) Fixed rate charges. There shall be a fixed rate charge for each connection
to the wastewater facilities. This charge shall consist of the following
(in Table 1).
(2) Surcharges.
(a)
Biochemical oxygen demand (BOD). Charges found in Table 1 shall
be per 100 pounds of five-day BOD in excess of the BOD load that would
result from a concentration of 175 mg/l in the user's wastewater.
(b)
Suspended solids. Charges found in Table 1 shall be per 100
pounds of suspended solids in excess of the suspended solids load
that results from a concentration of 170 mg/l in the user's wastewater.
(c)
Phosphorus. Charges found in Table 1 shall be per pound of phosphorus
in excess of the phosphorus load that results from a concentration
of six ppm in the user's wastewater.
(d)
Ammonia nitrogen. Charges found in Table 1 shall be per pound
of ammonia nitrogen in excess of the ammonia nitrogen load that results
from a concentration of 25 ppm in the user's wastewater.
(3) Flow charges for users of the wastewater facilities. This charge
as found in Table 1 shall be based on 100 cubic feet (748 gallons).
|
Table 1
|
---|
|
|
(By Effective Date)
|
|
|
6/16/2015
|
1/2/2016
|
1/2/2017
|
|
Volume Charge per 100 Cubic Feet:
|
$3.01
|
$3.25
|
$3.51
|
|
Surcharge Rates
|
|
|
|
|
BOD charge per 100 pounds
|
$63.86
|
$68.97
|
$74.49
|
|
SS charge per 100 pounds
|
$69.38
|
$74.93
|
$80.92
|
|
Phosphorus charge per pound
|
$6.88
|
$7.43
|
$8.02
|
|
Ammonia nitrogen charge per pound
|
$1.50
|
$1.62
|
$1.75
|
|
Monthly Meter Charge (Fixed Rate)
|
|
|
|
|
5/8-inch
|
$18.67
|
$20.17
|
$21.78
|
|
1-inch
|
$26.41
|
$28.52
|
$30.80
|
|
1 1/2-inch
|
$39.46
|
$42.62
|
$46.03
|
|
2-inch
|
$55.20
|
$59.61
|
$64.38
|
|
3-inch
|
$91.79
|
$99.13
|
$107.06
|
|
4-inch
|
$196.43
|
$212.14
|
$229.12
|
|
6-inch
|
$274.92
|
$296.92
|
$320.67
|