[Ord. No. 1194 Art. I, 1-28-1985]
It is determined and declared to be necessary and conducive
to the protection of the public health, safety, welfare and convenience
of the City to collect charges from all users who contribute Wastewater
to the City's Treatment Works. The proceeds of such charges so derived
will be used for the purpose of operating, maintaining and retiring
the debt for such public Wastewater Treatment Works.
[Ord. No. 1194 Art. II §§1-11, 1-28-1985]
Unless the context specifically indicates otherwise, the meaning
of terms used in this Chapter shall be as follows:
The quantity of oxygen utilized in the biochemical oxidation
of organic matter under standard laboratory procedure in five (5)
days at 20°C, expressed in milligrams per liter (mg/l).
Wastewater that has a BOD concentration of not more than
250 mg/l and a suspended solids concentration of not more than 300
mg/l.
All expenditures during the useful life of the Treatment
Works for materials, labor, utilities, and other items which are necessary
for managing and maintaining the sewage works to achieve the capacity
and performance for which such works were designed and constructed.
Expenditures for obtaining and installing equipment, accessories,
or appurtenances which are necessary during the useful life of the
Treatment Works to maintain the capacity and performance for which
such works were designed and constructed. The term "operation
and maintenance" includes replacement.
Any contributor to the City's Treatment Works whose lot,
parcel of real estate, or building is used for domestic dwelling purposes
only.
Is mandatory; MAY: Is permissive.
Solids that either float on the surface of or are in suspension
in water, sewage, or other liquids and which are removable by laboratory
filtering.
Any devices and systems for the storage, treatment, recycling,
and reclamation of municipal sewage, domestic sewage, or liquid industrial
wastes. These include intercepting sewers, outfall sewers, sewage
collection systems, individual systems, pumping, power, and other
equipment and their appurtenances; extensions, improvement, remodeling,
additions and alterations thereof; elements essential to provide a
reliable recycled supply such as standby treatment units and clear
well facilities; and any works, including site acquisition of the
land that will be an integral part of the treatment process or is
used for ultimate disposal of residues resulting from such treatment
(including land for composing sludge, temporary storage of such compost,
and land used for the storage of treated Wastewater in land treatment
reducing, storing, treating, separating, or disposing of municipal
waste or industrial waste, including waste in combined storm water
and sanitary sewer systems.
The estimated period during which a Treatment Works will
be operated.
That portion of the total Wastewater service charge which
is levied in a proportional and adequate manner for the cost of operation,
maintenance, and replacement of the Wastewater Treatment Works.
A water volume measuring and recording device, furnished
and/or installed by the City of Plattsburg or furnished and/or installed
by a user and approved by the City of Plattsburg.
[Ord. No. 1194 Art. III §§1-3, 1-28-1985]
A.
The
user charge system shall generate adequate annual revenues to pay
costs of annual operation and maintenance including replacement and
costs associated with debt retirement of bonded capital associated
with financing the Treatment Works which the City may by ordinance
designate to be paid by the user charge system. That portion of the
total user charge which is designated for operation and maintenance
including replacement of the Treatment Works shall be established
by this Chapter.
B.
That portion of the total user charge collected which is designated for operation and maintenance including replacement purposes as established in Section 710.040, shall be deposited in a separate non-lapsing fund known as the Operation, Maintenance and Replacement Fund and will be kept in two (2) primary accounts as follows:
1.
An account designated for the specific purpose of defraying operation
and maintenance costs (excluding replacement) of the Treatment Works
(Operation and Maintenance Account).
2.
An account designated for the specific purpose of ensuring replacement
needs over the useful life of the Treatment Works (Replacement Account).
Deposits in the Replacement Account shall be made at least annually
from the Operation, Maintenance and Replacement Revenue in the amount
of three thousand one hundred dollars ($3,100.00) annually.
C.
Fiscal
year-end balances in the Operation and Maintenance Account and the
Replacement Account shall be carried over to the same accounts in
the subsequent fiscal year, and shall be used for no other purposes
than those designated for these accounts. Monies which have been transferred
from other sources to meet temporary shortages in the Operation, Maintenance
and Replacement Fund shall be returned to their respective accounts
upon appropriate adjustment of the user charge rates for operation,
maintenance and replacement. The user charge rates shall be adjusted
such that the transferred monies will be returned to their respective
accounts within the fiscal year following the fiscal year in which
the monies were borrowed.
[Ord. No. 1194 Art. IV §§1-6, 1-28-1985]
A.
Each
user shall pay for the services provided by the City based on his
use of the Treatment Works as determined by water meters acceptable
to the City.
B.
Wastewater
for residence shall be charged on the basis of the average monthly
water usage for the months of January, February, and March. This basis
shall be reestablished each year. All other users shall be charged
based on their monthly water usage.
[Ord. No. 2168 §1, 7-10-2013]
C.
Charges.
[Ord. No. 2168 §§1—2, 7-10-2013]
1.
Unit charges shall be prorated.
2.
Minimum charge (per user, per billing, regardless of use): Ten dollars
and twenty-six cents ($10.26).
3.
Residential and commercial user unit charge (per 1,000 gallons):
Three dollars and seventeen cents ($3.17).
4.
Initial residential charges shall be based on a monthly water usage
of five thousand (5,000) gallons per month.
D.
(Reference is made to Section 710.070). For those contributors who contribute Wastewater, the strength of which is greater than normal domestic sewage, a surcharge in addition to the normal user charge will be collected. The surcharge for operation and maintenance including replacement is:
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$0.20 per pound BOD
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$0.18 per pound SS
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E.
Any
user which discharges any toxic pollutants which causes an increase
in the cost of managing the effluent or the sludge from the City's
Treatment Works, or any user which discharges any substance which
singly or by interaction with other substances causes identifiable
increases in the cost of operation, maintenance, or replacement of
the Treatment Works, shall pay for such increased costs. The charge
to each such user shall be as determined by the responsible plant
operating personnel and approved by the Board of Aldermen.
F.
The
user charge rates established in this Section apply to all users,
regardless of their location, of the City's Treatment Works.
[Ord. No. 1194 Art. VI §§1-2, 1-28-1985]
A.
The
City will review the user charge system at least every two (2) years,
and revise user charge rates as necessary to ensure that the system
generates adequate revenues to pay the costs of operation and maintenance
including replacement and that the system continues to provide for
the proportional distribution of operation and maintenance including
replacement costs among users and user classes.
B.
The
City will notify each user at least annually, in conjunction with
a regular bill, of the rate being charged for operation, maintenance
including replacement of the Treatment Works.
[Appendix A to Ord. No. 1194]
A.
This
Section presents the methodology to be used in calculating user charge
rates and surcharges and illustrates the calculations followed in
arriving at the first (1st) year's user charges and surcharges. The
unit costs established in this appendix are based on estimates of
expenses and loadings. The actual expenses and loadings that occur
may differ from these estimates and certainly they will change as
time passes. Therefore, the unit costs must be re-established whenever
necessary to reflect actual expenses and loadings. Once the system
is in use, the expenses and loadings can be determined from operating
records and the unit costs can be adjusted based on these figures.
1.
Expenses. The total annual expenses associated with the Treatment Works, as defined in Section 710.020, are estimated as follows:
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Item
|
Annual Expense
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|---|---|---|
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Billing and collection
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$4,000.00
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Administrative
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$6,500.00
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Power
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$10,500.00
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Labor
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$19,200.00
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Material Costs (Including Laboratory)
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$5,000.00
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Replacement Costs (See Appendix B)
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$3,100.00
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Vehicle Costs
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$4,000.00
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Debt Service
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$5,000.00
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Other
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$1,500.00
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TOTAL
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$58,800.00
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2.
Allocation of Expenses. The total operation and
maintenance including replacement expense is allocated to the appropriate
pollutants in the following manner.
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Annual $ to Treat Annual Flow
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=
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% annual costs allocated to flow x (total annual O&M budget
minus billing, collection & administration)
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$19,320.00
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=
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40% x ($58,800.00 - $10,500.00)
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Annual $ to Treat Annual BOD
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=
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% annual cost allocated to BOD x (total annual O&M budget
minus billing, collection & administration)
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$14,490.00
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=
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30% x ($58,800.00 - $10,500.00)
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Annual $ to Treat Annual SS
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=
|
$ annual cost allocated to SS x (total annual O&M budget
minus billing, collection & administration)
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|
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$14,490.00
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=
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30% x ($58,800.00 - $10,500.00)
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3.
Loadings.
The initial hydraulic loading is estimated to be 51,300,000
gallons per year.
The initial BOD loading is estimated to be 74,000 pounds per
year.
The initial SS loading is estimated to be 81,000 pounds per
year.
4.
Unit Costs.
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Initial unit cost for flow in $/1000 gallons
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=
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Annual $ to treat annual flow
Estimated annual hydraulic loading
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$0.38
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=
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$19,320
51,300
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Initial unit cost for BOD in $/pound
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=
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Annual $ to treat annual BOD
Estimated annual BOD loading
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$0.20
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=
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$14,490
74,000
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Initial unit cost for SS in $/pound
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=
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Annual $ to treat annual SS
Estimated annual SS loading
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$0.18
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=
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$14,490
81,000
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5.
Minimum Charge.
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Annual billing, collection & administration costs
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=
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$10,500.00
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Annual cost to treat infiltration/inflow (assumed clear water)
= unit costs to treat flow x annual infiltration/inflow
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=
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$6,200.00
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TOTAL Annual Minimum Cost
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=
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$16,700.00
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Minimum Charge/User/Billing Period (799 Users)
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=
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$1.75
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6.
Residential User Unit Charge. The residential user unit charge is calculated as follows using the pollutant concentrations defining normal domestic Wastewater in Section 710.020.
Residential unit charge = unit flow charge
+ (unit BOD charge) (BODND) (.00834)
+ (unit SS charge) (SSND) (.00834)
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Where:
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Residential unit charge is in $/1000 gallons
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Unit flow charge is in $/1000 gallons from paragraph 4
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Unit BOD charge is in $/pound BOD from paragraph 4
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Unit SS charge is $/pound SS from paragraph 4
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BODND is in the normal domestic BOD strength in milligrams per liter (mg/l) as defined in Section 710.020
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SSND is in the normal domestic SS strength in mg/l as defined in Section 710.020
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and .00834 is a unit conversion factor.
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This total residential unit charge is to be inserted in Section 710.040(C).
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Residential unit charge = $0.38 + ($0.02)(250)(.00834) + ($0.18)(275)(.00834)
= $1.21
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An example calculation of a residential charge for a resident
of the City of Plattsburg follows:
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6,000 gallons water usage x $1.21 per 1000
Minimum charge per month
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=
=
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$7.26
$1.75
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TOTAL PER MONTH
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$9.01
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[Appendix B to Ord. No. 1194]
This Section contains a Replacement Schedule that was developed
to determine the amount of revenue needed to fund the Replacement
Account. The Replacement Schedule lists the equipment in the treatment
works, the estimated dates when the equipment will have to be replaced,
and the estimated cost of replacement (including an allowance for
inflation) over the useful life of the treatment works. Also listed
is the estimated cash flow that will occur in the Replacement Account.
The replacement dates and costs shown are estimates; the actual replacement
dates and costs could be significantly different from those shown.
If the actual replacement expenses differ significantly from those
listed in the replacement schedule, the funding of the Replacement
Account shall be adjusted accordingly.
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Replacement Schedule
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|---|---|---|---|---|
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Years From Treatment Works in Operation
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Replacement Item
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Expenditure
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Income
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Balance
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|
1
|
0
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$3,100.00
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$3,100.00
| |
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2
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0
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$3,348.00
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$6,448.00
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3
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0
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$3,616.00
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$10,064.00
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4
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0
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$3,905.00
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$13,969.00
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5
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0
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$4,219.00
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$18,186.00
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6
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0
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$4,555.00
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$22,741.00
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7
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0
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$4,919.00
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$27,661.00
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8
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0
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$5,313.00
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$32,974.00
| |
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9
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0
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$5,738.00
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$38,711.00
| |
|
10
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Rotors, Air Compressor, Grit Blower, Clarifier, Booster Pump,
Comminutor
|
$25,900.00
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$6,197.00
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$19,008.00
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11
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0
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$4,621.00
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$23,629.00
| |
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12
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0
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$4,990.00
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$28,619.00
| |
|
13
|
0
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$5,390.00
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$34,009.00
| |
|
14
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0
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$5,821.00
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$39,830.00
| |
|
15
|
0
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$6,286.00
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$46,116.00
| |
|
16
|
0
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$6,789.00
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$52,905.00
| |
|
17
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0
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$7,332.00
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$60,238.00
| |
|
18
|
0
|
$7,919.00
|
$68,157.00
| |
|
19
|
0
|
$8,553.00
|
$76,157.00
| |
|
20
|
Rotors, Air Compressor, Grit Blower, Clarifier, Booster Pump,
Storm Water Pump, Commu-nitor, Pumping Station Pump
|
$84,900.00
|
$9,237.00
|
$1,046.00
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