2. City Code Amendment-Discharges into Sanitary Sewer1
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I MEMORANDUM
C)-
CITY OF
CHANHASSEN
690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317
(612) 937 -1900 • FAX (612) 937 -5739
TO: Don Ashworth, City Manager
FROM: Charles Folch, Director of Public Works /City Engineer
DATE: April 20, 1994
Action by City AdmbbMft
Fndorsed P tX
Mod;+ :cd
Rejecter
Det: — 21 -yy
Date Submitted to Commissioff,
Date Sup-- tted to Council
SUBJ: Public Hearing on Ordinance Amendment Regarding Discharges into the Sanitary
Sewer System - First Reading
File No. PW -342
Over the past few years the City Council has shown their commitment to reduce infiltration and
inflow (I/I) into the sanitary sewer system by funding sewer line and manhole rehabilitation
projects. At a workshop and subsequent meeting earlier this year, the City Council positively
endorsed embarking on a new program to eliminate sump pump discharge from the sanitary sewer
by conducting a city -wide inspection of all homes connected to the sewer system As such, this
amended ordinance provides language prohibiting this type of discharge from the sanitary sewer,
the associated inspection program, information on compliance and penalties for non - conformance.
This amended ordinance is the culmination of staff input received from both the Public Safety's
Building Inspection Department and the Public Works Department.
It is important that this amended ordinance be in place prior to the City initiating a formal
inspection program. Therefore, it is recommended that the City Council approve the first reading
for amending Section 19 -44 prohibiting discharges into the,sanitary sewer system.
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Attachment: Amended ordinance
c: Dave Hempel, Assistant City Engineer
Steve Kirchman, Building Official
Carl Barke, Mechanical Inspector
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CITY OF CHANHASSEN
CARVER AND HENNEPIN COUNTIES, MINNESOTA
rGINITINUENWIT, on
AN ORDINANCE AMENDING SECTION 19 -44 PROHIBITING
DISCHARGES INTO THE SANITARY SEWER SYSTEMS, AND
PROVIDING PENALTIES FOR VIOLATION THEREOF
THE CITY COUNCIL OF THE CITY OF CHANHASSEN ORDAINS:
Section 1 : Section 19 -44 of the Chanhassen City Code is hereby amended to read:
PROHIBITED DISCHARGES INTO THE SANITARY SERER SYSTEM
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(A) No person shall discharge or cause to be discharged any substance not requiring treatment or any
substance not acceptable for discharge, as determined by the city or the Minnesota Pollution
Control Agency, into the sanitary sewer system. Only sanitary sewage from approved plumbing
fixtures may be discharged into the sanitary sewer system.
(B) No person shall discharge or cause to be discharged, directly or indirectly, any storm water,
surface water, ground water, roof runoff, subsurface drainage, or cooling water to any sanitary
sewer. Any person having a roof drain, sump pump, unauthorized swimming pool discharge,
cistern overflow pipe or surface drain connected and/or discharging into the sanitary sewer shall
disconnect and remove any piping or system conveying such water to the sanitary sewer system
by May 1, 1994.
(C) All construction involving the installation of clear water sump pits shall include a sump pump with
minimum size 1' /z" diameter discharge pipe. The pipe attachment must be a rigid permanent type
plumbing such as PVC or ABS plastic pipe with glued fittings, copper or galvanized pipe. All
discharge piping shall be installed in accordance with the plumbing code. Discharge piping shall
start at the sump pit and extend thru the exterior of the building and terminate with not less than
six (6) inches of exposed pipe. The discharge pipe shall be provided for all clearwater sump
installations with no regard as to whether the pump is actually installed. Sump pump discharge
location and flow shall be consistent with the approved development drainage plan for the lot.
The discharge may not be pumped directly onto any public right -of -way unless approved by the
City Engineer or his designee. Any disconnects or openings in the sanitary sewer shall be closed
and repaired in compliance with applicable codes.
(D) Every person owning improved real estate that discharges into the City's sanitary sewer system
shall allow inspection by authorized City employees or its agents of all properties or structures
connected to the sanitary sewer system to confirm there is no sump pump or other prohibited
discharge into the sanitary sewer system. Any persons refusing to allow their property to be
inspected shall immediately become subject to the surcharge as described in Subdivision (G)
hereinafter.
(E) Any owner of any property found to be in violation of this section shall make the necessary
changes to comply with this ordinance and such change shall be verified by authorized City
employees or its agents. Any property or structure not inspected or not in compliance by May 1,
1994 shall, following notification from the City, comply within fourteen (14) calendar days or be
subject to the surcharge as provided in Subdivision (G) hereinafter.
(F)
Upon verified compliance with this section, the City reserves the right to reinspect such property
or structure at least annually to confirm continued compliance. Any property found not to be in
compliance upon reinspection or any person refusing to allow their property to be reinspected
shall, following notification from the City, comply within fourteen (14) calendar days or be subject
to the surcharge hereinafter provided for.
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(G)
A surcharge of ($100.00) dollars per month is hereby imposed and shall be added to every sewer
billing , to property owners who are found not in compliance with this Section. The surcharge
shall be added every month until the property is verified to be in compliance through the City's
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inspection program.
(H)
The City Council, upon recommendation of the City Engineer, shall hear and decide requests for
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temporary waivers from the provisions of this ordinance where strict enforcement would cause a
threat to public safety because of circumstances unique to the individual property under
consideration. Any request for a temporary waiver shall be submitted to the City Engineer in
writing. Upon approval of a temporary waiver from the provisions of this ordinance, the property
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owner shall agree to pay an additional fee for sanitary sewer services based on the number of
gallons discharged into the sanitary sewer system as estimated by the City Engineer.
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(I)
Violation of this ordinance is a misdemeanor and each day that the violation continues is a
separately prosecuteable offense. The imposition of the surcharge shall not limit the City's
authority to prosecute the criminal violations, seek an injunction in District Court ordering the
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person to disconnect the non - conforming connection to the sanitary sewer, or for the city to correct
the violation and certify the costs of connection as an assessment against the property on which
the connection was made.
PASSED AND ADOPTED this day of , 1994, by the City Council of the City of I
Chanhassen.
ATTEST:
Don Ashworth, Clerk/Manager
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Donald J. Chmiel, Mayor