§ 13.08.100. Sewer impact fees.
A.
Purpose. This chapter relates to sewerage and sewage disposal regulating sewage collection, treatment and disposal; establishing connection fees and charges.
B.
Application for Approval. Before any person shall construct or contract for the construction of a sewerage system, sewerage system extension, or wastewater treatment facility, or shall install any such process, device or equipment, either in whole or in part, an application for approval to construct the contemplated facility shall be made to the department on forms provided by the department. The department shall act on the application upon by the receipt thereof by designating either approval or disapproval. In case of a disapproval, the reasons for such disapproval shall be stated in writing. No permit for construction shall be issued until approval has been obtained from the department. All public and private connections to the public sanitary sewer system shall be accomplished in accordance with current department policies and directives.
C.
Fees for Connection to Sanitary Sewers.
1.
Connection Fees Relating to Participating Property in Areas Under Development:
a.
Single-family residential for service of participating single-family residential property and residential improvement districts the connection fee shall be charged at the rate set by resolution, and shall be determined per fixture unit, in accordance with subsection (c)4, 5, and 6 of this Code. Said fee shall be payable in cash, by check or money order at the time of permit application.
b.
Multifamily residential for service of participating multifamily residential property and residential improvement districts, the connection fee shall be charged at the rate set by resolution, and shall be determined per fixture unit, in accordance with subsections (C)4, 5 and 6 of this section. Said fee shall be payable in cash, by check or money order at the time of permit application.
c.
Commercial and industrial for service of participating commercial and industrial property, a connection fee shall be charged at the rate set by resolution and shall be determined per fixture unit in accordance with subsections (C)4, 5 and 6 of this section. Said fee shall be payable in cash, by check or money order at the time of permit application.
2.
Connection Fees Relating to Non-participating Property in Areas Under Development:
a.
Single-family residential for service of non-participating single-family residential property, the connection fee shall be charged at the rate set by resolution and shall be determined per fixture unit in accordance with subsections (C)4, 5 and 6 of this section. Said fee shall be payable in cash, by check or money order at the time of permit application.
b.
Multifamily residential for service of non-participating multifamily residential property, the connection fee shall be charged at the rate set by resolution and shall be determined per fixture unit in accordance with subsections (C)4, 5 and 6 of this section. Said fee shall be payable in cash, by check or money order at the time of permit application.
c.
Commercial and industrial for services of non-participating commercial and industrial property, said fee shall be charged at the rate set by resolution and shall be determined per fixture unit in accordance with subsections (C)4, 5 and 6 of this section. Said fee shall be payable in cash, by check or money order at the time of permit application.
3.
Special Facilities. If the property is to be connected to the sanitary sewer system, necessitating the construction of special facilities required to handle the waste, the department may require the applicant to provide these special facilities at his own expense.
4.
Fixture Unit Equivalents (from Uniform Plumbing Code). Most current edition as adopted and amended by the City of Willcox. The unit equivalent of plumbing fixtures shown in Table 1 shall be based on the size of the trap required, and the unit equivalent of fixture and devices not shown in Table 1 shall be based on the rated discharge capacity in GPM (gallons per minute) in accordance with Table 2.
Maximum trap loadings for sizes up to four inches are as follows:
1¼″ - 1 unit 1½″ - 3 units 2″ - 4 units 3″ - 6 units 4″ - 8 units TABLE 1
Kind of Fixture
Minimum Trap and Trap Arm Size
Units
_____ Bathtubs 1½″ 2 Bidets 1½″ 2 Dental units or cuspidors 1¼″ 1 Drinking fountains 1¼″ 1 Floor drains 2″ 2 *Interceptors for grease, oil, solids, etc. 2″ 3 *Interceptors for sand, auto wash, etc. 3″ 6 Laundry tubs 1½″ 2 Clothes washers 2″ 2 *Receptors (floor sinks) indirect waste receptors for refrigerators, coffee urn, water stations, etc. 1½″ 1 *Receptors, indirect waste receptors for commercial sinks, dishwashers, etc. 2″ 3 Showers, single stalls 2″ 2 *Showers, gang (one unit per hear) 2″ Sinks, bar, private (1½″ min. waste) 1½″ 1 Sinks, bar, commercial (2″ min. waste) 1½″ 2 Sinks, commercial or industrial, schools, etc. including dishwashers, wash up sinks and wash fountains (2″ min. waste) 1½″ 3 Sinks, flushing rim, clinic 3″ 6 Sinks, and/or dishwashers (residential) (2″ min. waste) 1½″ 2 Sinks, and/or garbage disposals (residential) (2″ min. waste) 1½″ 3 Sinks, service 2″ 3 Mobile home park traps (one for each mobile home) 3″ 11 Recreational vehicle park traps (one for each vehicle) 3″ 9 Urinals, pedestal, trap arm only 3″ 6 Urinals, stall 2″ 2 Urinals, wall (2″ min. waste) 1½″ 2 Urinals, wall trough (2″ min. waste) 1½″ 3 Wash basins (lavatories) single 1¼″ 1 Wash basins, in sets 1½″ 2 *Water closet tank type, trap arm only 3″ 4 Water closet flush valve type, trap arm only 3″ 6 *NOTE—The size and discharge rating of each indirect waste receptor and each interceptor shall be based on the total rated discharge capacity of all fixtures, equipment or appliances discharging thereinto in accordance with Table 2.
Drainage piping serving batteries of appliances capable of producing continuous flows shall be adequately sized to provide for peak loads. Clothes washers in groups of three or more shall be rated at six units each for the purpose of common waste pipe sizing.
Tank type toilets shall be computed as six fixture units when determining septic tank size.
Trap sizes shall not be increased to a point where the fixture discharge may be inadequate to maintain their self-scouring properties.
TABLE 2
DISCHARGE CAPACITY (in gals. per min.)For Intermittent Flow Only
Up to 7½ Equals 1 unit 8 to 15 Equals 2 units 16 to 30 Equals 4 units 31 to 50 Equals 6 units Over 50 gallons shall be determined by the city engineer For a continuous flow into a drainage system, such as from a pump, sump ejector, air conditioning equipment, or similar device, two fixture units shall be allowed for each gallon per minute of flow.
5.
High Strength and/or High-Volume Commercial and Industrial Connections. The department shall evaluate the effect on the conveyance and treatment systems caused by each new commercial establishment connection having any of the following characteristics: (1) flows greater than 1,000 ccf/month, (2) total solids greater than 1,200 mg/liter, or (3) chemical oxygen demand greater than 1,000 mg/liter. An individual fixture unit rate shall be set for each such user.
6.
Prevailing Rate. The connection fee to be charged shall be at the rate prevailing under this chapter and any amendment hereto at the time of application for and issuance of a plumbing and/or building permit. Credit shall be given for any prepaid connection fees.
D.
Construction of Public Sewer Systems.
1.
Application. Upon written application, the department may permit construction of permanent sanitary sewer systems where no existing sewer is available. Said sewer will be constructed at the sole expense cost of the applicant within street, avenues, alleys and right-of-way pursuant to grants of easements. The applicant will be required to construct all "on-site" and "off-site" facilities large enough to provide service to his development and in no case shall a line be less than eight inches in internal diameter.
2.
Permits for Construction. Prior to the commencement of the construction of public sanitary sewerage facilities under this section, the applicant must obtain a sewer construction permit from the department. Said permit shall not be issued until the following requirements have been met by the applicant:
a.
Submission of plans and specifications for the proposed construction duly certified by a registered profession engineer, said plans and specifications being subject to approval by the department.
b.
Submission of letter of application and affirmation of cost for review and approval by the department.
c.
Submission of signed copies of itemized bids from a minimum of three qualified contractors in those instances where the applicant is eligible for connection credits on a portion of the construction.
d.
Submission of evidence that all required easements have been approved and recorded.
e.
Receipt of inspection fee which shall be two and one-half percent of the attested contract price for construction of said sanitary sewer facilities.
f.
Receipt of an "approval to construct" for the respective sewer project from the Arizona Department of Health Services or their delegated representative.
3.
Bill of Sale. Upon completion of construction of the sanitary sewer facilities and final approval of same by the department, applicant shall convey all of its right, title and interest in and to said sewer facilities to the City of Willcox, free and clear of any and all liens, claims, charges, and encumbrances attaching thereto. Said transfer of the right, title and interest in and to said sewer facilities shall be accomplished by a "bill of sale" prepared by the City of Willcox.
The applicant shall warrant that all work shall be free from any defects due to poor workmanship or materials for a period of one year from the acceptance of a "bill of sale" by the City of Willcox. Should any defect be discovered within such period, applicant shall make necessary repairs as determined by the city at applicant's sole cost and expense.
E.
Credits and Rebates for Installing Public Sewerage Facilities.
1.
Credits. The city may enter into a credit agreement with an applicant for sewer service for the additional design and construction costs incurred for the installation of a public sanitary sewerage facility of a size larger than would be required to collect or treat the waste from the area under development. The department shall determine the base sewerage facility size for the area under development and the additional required sewerage facility size. The credits shall be applied an as off-set to construction fees to be paid by the applicant. The credits shall not be in the form of a cash refund or rebate. The credits shall be usable for ten years from the execution of the agreement by the City of Willcox. The city may designate a longer usable life for the credits for good cause. The agreement shall specify either that the credits are granted to the applicant for use on any property owned by the applicant within the City of Willcox, except as otherwise specified or limited in the credit agreement, or that the credits are usable only within the area under development and are assignable to future owners. The credits awarded for such over sizing shall not exceed the total connection fees to be collected from the area under development as set forth in section 39.08.030.
2.
Rebates. In the event an applicant installs a public sanitary sewerage system which provides at least 51 percent residual capacity for property other than the area under development, an agreement for refund of the cost of said sewerage system may be made with the applicant. The refund shall be made until the full sum due the applicant has been paid, or for a maximum of ten years from the date of the refund agreement, whichever shall first occur. The the event the full sum due the applicant has not been refunded within the aforesaid ten-year period, any balances remaining shall be considered cancelled, and the city shall be fully discharged from any further obligation under the agreement.
F.
Permits for Temporary Installation for Areas Not Contiguous to Sewers. The director may, upon written application, issue a permit authorizing an area not contiguous in any downstream gravity draining sewer to be temporarily connected to a nearby sewer. All permits issued and installations made pursuant to this section shall be on a temporary basis only, and shall be subject to the following terms and conditions:
1.
The area shall be subject to section 13.08.100(B) and section 13.08.100(C) of this Code.
2.
The temporary line referred to in this section shall be only at such locations as shall be approved by the director.
3.
All such installations shall be made, maintained and operated without cost of expense to the city.
4.
Upon the installation of permanent sewers contiguous to the area being serviced by such temporary installations, the said temporary line shall be abandoned, and connection shall be made to the permanent sewers at no cost to the City of Willcox.
5.
All charges and expenditures, including rental charges incurred or paid by the applicant in installing and maintaining such temporary line, shall in no manner be considered as having been incurred or paid with respect to any permanent sewer improvement district, private contract authorized by this resolution, or any sewer installed by the city.