(a) 
Charges to pay maintenance and operating costs.
The user charges established by the city shall be adequate to pay the maintenance and operating costs of the system.
(b) 
Users to pay monthly minimum plus proportionate share.
Each user shall pay a monthly minimum plus a proportionate share of the cost of the operation and maintenance of the system, including replacement. The user charge shall distribute the cost of operation and maintenance of the system with respect to operation and maintenance costs.
(c) 
Definition of symbols in formula.
The following symbols and definitions shall be used in the formula for calculating the monthly sewer use charges:
Cu
Sewer user charge per month
Ct
Operation and maintenance cost per month
Vt
Volume of sewage to the plant per month
Vu
90% of the monthly average water used by each user, as measured by the water meter, during the months of December, January and February
K
Monthly minimum - $3.45 per month
(d) 
Calculation of monthly charges.
It is hereby determined that the treatment works is primarily flow dependent and that the BOD, suspended solids, and other pollutant concentrations discharged by all users are approximately equal; therefore the monthly rates and charges to all users shall be determined as follows:
Cu = K +
Ct
(Vu)
Vt
(e) 
Annual review.
The city council shall review user charges annually and revise them periodically to reflect actual treatment works operation and maintenance costs.
(f) 
Sample calculations.
Sample calculations of monthly sewer user charge:
(1) 
Annual O&M as estimated on page 6 of facility plan: $34,584.00.
(2) 
Annual volume of sewage to plant (1974-1975 figures): 86,010,214 gallons.
(3) 
Sewer user charge formula: Cu = K + (Vu) [Cu = K + Ct/Vt (Vu)]
Ct
=
O&M cost/month
Ct
=
34,584/12 = $2,882/month
Vt
=
Volume of sewage to plant/month
Vt
=
86,010,214/12 = 7,167,517 gal/month
Vu
=
90% of the monthly average of water through user’s meter during December, January, February
K
=
Monthly minimum = $3.45/month
O & M cost to treat 1,000 gallons of sewage:
$2,882 1,000 = $0.40/1000 gallons
(7,167,517)
EXAMPLE TABLE
Avg. Gallons for Dec. - Feb.
(in 1,000 gal.)
Vu
Ct/Vt (VU)
K
Cu = K + Ct/Vt (Vu)
1.0
0.9
$1.25/mo.
$3.55
$4.80
2.0
1.8
$2.50/mo.
$3.55
$6.05
3.0
2.7
$3.75/mo.
$3.55
$7.30
4.0
3.6
$5.00/mo.
$3.55
$8.55
5.0
4.5
$6.25/mo.
$3.55
$9.80
6.0
5.4
$7.50/mo.
$3.55
$11.05
7.0
6.3
$8.75/mo.
$3.55
$12.30
8.0
7.2
$10.00/mo.
$3.55
$13.55
9.0
8.1
$11.25/mo.
$3.55
$14.80
10.0
9.0
$12.50/mo.
$3.55
$16.05
11.0
9.9
$13.75/mo.
$3.55
$17.30
12.0
10.8
$15.00/mo.
$3.55
$18.55
15.0
13.5
$18.75/mo.
$3.55
$22.30
20.0
18.0
$25.00/mo.
$3.55
$28.55
(1987 Code, ch. 10, sec. 4A; 2001 Code, sec. 13.401)
The sewer tap charge shall be set by resolution of the city council and is on file with the office of the city secretary.
(1987 Code, ch. 10, sec. 4B; 2001 Code, sec. 13.402)
Sewer rates are set by resolution of the city council and are on file with the office of the city secretary.
(Ordinance adopting 2001 Code; 2001 Code, sec. 13.403)
(a) 
Sewer connection required.
All owners or occupants of buildings, or agents for owners, situated within two hundred (200) feet of a sanitary sewer are hereby required to construct, or cause to be constructed, suitable water closets on their property, and to connect the same with the city sanitary sewer system under the direction and supervision of the city.
(b) 
Maintenance.
It shall be the duty of any owner or occupant of any building connected with the city sanitary sewer system to keep and maintain the connection to the sewer system in perfect condition and free from obstruction.
(c) 
Use of privy, septic tank, etc.
It shall be unlawful for any person to build, construct, dig, maintain, or use any dry toilet, surface privy, cesspool, or septic tank within the city; provided, however, when connection to the city sanitary sewer system is impossible or impracticable at any time, the construction, maintenance and use of a septic tank constructed in conformity to state law and approved by the health officer may be permitted until such time as connection to the sewer system may be made.
(1987 Code, ch. 10, sec. 4C; 2001 Code, sec. 13.404)
No person shall maliciously, willfully or negligently break, damage, uncover, deface or tamper with any structure, appurtenance or equipment which is part of the municipal sewage works. Any person violating this section shall be subject to immediate arrest under the charge of disorderly conduct.
(1987 Code, ch. 10, sec. 4D; 2001 Code, sec. 13.405)
(a) 
The city will accept and treat, in accordance with all regulatory requirements, wastes from chemical portable toilets, on-site sewage facilities or septic systems, and will charge fees as set by resolution of the city council and on file with the city secretary.
(b) 
The city will accept and treat such wastes that are delivered to city facilities by approved haulers and contractors.
(c) 
For approval, haulers and contractors shall demonstrate compliance with state commission on environmental quality licensing, city insurance requirements and other qualifications required by the director of water and wastewater.
(d) 
Approved haulers and contractors shall be charged an annual license fee for each vehicle, tank or transport that will be used to deliver wastes to the city. Payment of such license fee will coincide with the city’s fiscal year. Such fee will be collected upon approval to deliver wastes to the city and prior to any delivery. The first annual license fee paid by the hauler shall be prorated to the remaining portion of the year by dividing the annual license fee by twelve (12) and multiplying by the months, or portion thereof, remaining in the city’s fiscal year. Annual license fees thereafter will be due no later than the first day of the city’s fiscal year and shall expire on the last day of the city’s fiscal year. No portion of the annual license fee shall be refundable. The annual license fee shall be as set forth in the resolution approved by the city council.
(e) 
Approved haulers and contractors will be charged certain fees for the acceptance and treatment of wastes based upon quantity delivered. A schedule of those fees is set forth in the resolution approved by the city council.
(f) 
The director of water and wastewater shall develop, maintain, distribute and enforce rules and procedures to be followed in the acceptance of such wastes, [and shall refuse to accept such wastes if such wastes] either by quantity, chemical quality or for any other reason, would be detrimental to the city’s wastewater treatment equipment or processes. Such rules and procedures shall not be in conflict with this section.
(g) 
By order of the director, a hauler or contractor may be prohibited from delivery of wastes to the city for failure to comply with the provisions of this section and rules established by the director, and approved by the city manager, including failure to pay fees and charges.
(Ordinance 2011-01-480 adopted 1/10/11)