HomeMy WebLinkAbout~Master - Amending Chapter 21 of the Municipal Code (Plumbing Code) ORDINANCE NO. 3760
AN ORDINANCE TO AMEND THE MUNICIPAL CODE OF THE CITY OF AMES,IOWA,BY
REPEALING SECTIONS 21.101 THROUGH 21.801AND ENACTING NEW SECTIONS 2 1.101
THROUGH 21.801 FOR THE PURPOSE OF ADOPTING BY REFERENCE THE 2003 EDITION
OF THE UNIFORM PLUMBING CODE AND MAKING OTHER CHANGES TO THE
PLUMBING REGULATIONS; REPEALING ANY AND ALL ORDINANCES OR PARTS OF
ORDINANCES IN CONFLICT TO THE EXTENT OF SUCH CONFLICT; PROVIDING A
PENALTY;AND ESTABLISHING AN EFFECTIVE DATE.
BE IT ENACTED,by the City Council for the City of Ames,Iowa,that:
Section One. The Municipal Code of the City of Ames, Iowa shall be and the same is hereby amended by
repealing Sections 21.101 through 21.80land re-enacting Sections 2 1.101 through 21.801 as follows:
"Sec.21.101. PLUMBING RULES AND REGULATIONS.
The Uniform Plumbing Code, 2003 Ed. Published by the International Association of
Plumbing and Mechanical Officials,(herein called UPC),Chapters 1-15,and Appendices B,D,H and
Section L.6 of Appendix L,except for such modifications,additions or deletions as hereinafter enacted
shall be the plumbing code for the City of Ames,Iowa.
(Ord.No.2860, Sec. 1, 10-25-83;Ord.No.3198, Sec. 1,9-24-92;Ord.No.3221, Sec. 1,3-23-93;
Ord.No.3501,Sec. 1, 10-13-98)
Sec.21.201. PERMITS.
(1) Permit Required. It shall be unlawful for any person,except as hereinafter provided,
to install,extend,make a connection to,or add to the plumbing system of a building,or to a building
sanitary sewer or drain,or to a water service,foundation drain,storm sewer or building storm drain,
or storm water to a retention pond, storm water area intakes on private property, except a fire
suppression sprinkler system,without first obtaining a plumbing permit from the Inspection Division.
Provided,however,that a plumbing permit is not required for repair or replacement of:water faucets;
plumbing fixtures;water lines or fittings on the discharge side of a water meter;waste and vent pipes
or fittings located above the building drain; and, release of stopped drains; so long as there is no
change of any kind or degree from the location or configuration of any of the said items. It shall be
unlawful to conceal or bury any of the items of work listed above, whether done with or without a
plumbing permit,without first observing and testing the work in such manner as to be certain that the
work will not leak,and that the materials used are adequate to prevent failure of the plumbing system
A"fire sprinkler"permit shall be obtained from the plumbing inspector or designee when a backflow
prevention device is installed for containment of the fire sprinkler system prior to a hydro pressure test
of the sprinkler system. However,plumbing work for which a plumbing permit is required may be
performed prior to the issuance of the permit,but an application for a plumbing permit for the work
shall be submitted to the Inspection Division not later than five days after the work is completed,and
the Inspection Division shall be called to inspect the work not later than five days after the submittal
of the application for the plumbing permit.
(Ord.No. 3663,4-23-02)
(2) Application for permit. An application shall be made in writing at the Inspection
Division on the form provided by the City,along with such plans as may be required by the Building
Official. [Only master plumbers from a registered plumbing contractor may apply for a plumbing
permit,except that permits are not required for public water mains or public sewer mains.]
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(3) Waiver of permit and fee. The requirement to obtain a plumbing permit, and the
associated fee, shall be waived for the service installations, connections and extensions defined in
Section 21.201(1)provided that the work involved is a part of the work required under contract with
the City of Ames. All other requirements set forth shall be enforced.
(Ord.No. 3221, Sec. 2, 3-23-93; Ord.No. 3501, Sec. 2, 10-13-98)
Sec.21.202. INSPECTIONS.
(1) Supervision of the work. When a permit has been issued for plumbing work,the doing
of such plumbing shall be by either a journeyman plumber or an apprentice plumber under the
supervision of a journeyman plumber. Only journeymen plumbers identified on the registration of a
given contractor will be recognized as able to supervise work done for that contractor.
(2) Authority of inspector. The inspector or authorized representative shall have authority
to enforce the provisions of this chapter relating to the installation and testing of all plumbing. The
inspector may revoke said permit or issue a municipal infraction at any time when such work is not
being done in accordance with the provisions of this chapter or the approved plans and permit;and
if such permit is revoked,it will be unlawful for any person to proceed further with said work without
approval of the inspector.
(3) Destroying posted notices. It shall be unlawful for any person to willfully mutilate,
deface,remove or destroy any certificate or notice placed by the plumbing inspector in any building
in regard to the plumbing work in said building until authorized to do so by the inspector.
(4) Whenever the plumbing inspector issues a correction notice in writing for work that
is completed,said work shall be corrected in 30 calendar days of such notice,except that when there
is an immediate hazard,corrections shall be made immediately.
(Ord.No. 3501,Sec. 1, 10-13-98)
Sec.21.203. FEES
(1) Fees pertaining to this chapter shall be in such amounts as shall be established from
time to time by resolution of the city council.
(Ord.No. 3501, Sec. 1, 10-13-98)
Sec.21.301. DEFINITIONS
The following definitions of terms shall be used in the interpretation of this chapter:
(1) Apprentice plumber. An apprentice is an employee of a registered plumbing
contractor who while learning the trade of plumbing,is assisting in the installation,alteration or repair
of plumbing systems or parts thereof under the supervision of a licensed journeyman plumber.
(2) Journeyman plumber. A j ourneyman plumber is a person who through training and
experience has acquired the requisite skill and knowledge necessary for the proper installation,
alteration and repair of plumbing systems, or parts thereof; and, who holds a valid license as a
journeyman plumber from the City. A journeyman plumber shall have had at least 8000 hours
experience as an apprentice plumber.
(3) Master plumber. A master plumber is a person who is skilled in the planning,
supervising and practical installation of plumbing systems or parts thereof and is familiar with the
laws,rules and regulations of the City and the State of Iowa governing the same and who holds a valid
license as a master plumber issued by the City,who has had experience as a journeyman plumber.
(4) Plumbing contractor. An individual,firm,or corporation which performs services
doing plumbing installation.
(5) Plumbing inspector shall be any person to whom the City has assigned the task of
inspecting plumbing for compliance with any provisions of this chapter.
(Ord.No. 821,Sec. 6;Code 1956,Sec.20-7;Ord.No. 3198,Sec. 1, 9-24-92;Ord.No. 3501,Sec. 1,
10-13-98)
See.21.302. REGISTRATION.
Before doing any plumbing business in the City,a plumbing contractor shall be registered
with the City Inspection Department. The plumbing contractor must come into the Inspection Division
office to register in person before doing any work in the City of Ames.
(1) Conditions for Registration. A plumbing contractor shall have at least one licensed
master plumber and journeyman plumber employed by or working for the contractor at all times.
(2) Information to be provided. An applicant for plumbing contractor registration under
this section shall provide to the City Inspection Division the following information:
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(a) The complete name, complete mailing address, street address and telephone
number of the firm or corporation.
(b) The name,position and private mailing address of a manager or general agent
of the firm or of each officer of a corporation and the registered agent for service of legal process on
the corporation.
(c) The name,position and private mailing address of a person who is authorized
to bind the firm in legal agreements.
(d) If the registration is to be as an individual only,the name and mailing address,
street address and telephone number of the individual.
(e) The State Division of Labor registration number.
(f) Every registrant shall carry Contractor's Commercial General Liability insurance
in not less than$500,000.00 combined single limit and shall provide proof of coverage to the Building
Official before registration.
EXEMPTION: When registrant is the property owner, proof of general liability
insurance coverage of$500,000 is required in lieu of contractor's commercial liability coverage and
no state registration number is required.
(g) The names of all master plumbers employed by or working for the plumbing
contractor.
(h) The names of all journeyman plumbers working for the plumbing contractor.
(i) The names of all apprentice plumbers employed by or working for the plumbing
contractor.
0) Other technical data and information pertaining to the work to be done as may
be required by the Building Official.
Every Registrant shall provide the required information accurately and completely.
Any changes in the required information shall be reported to the office of the Building Official within
ten(10)days from the date the information previously supplied has become inaccurate for any reason.
(3) Plumbing Inspector Shall Respond. After application for registration has been
received by the City Inspection Division, the Inspection Division shall act promptly to issue the
registration or to determine on what basis the registration may not be issued.
(4) Transfer of Registration is Prohibited. No registrant under this section shall allow
their registration by name or other identification to be transferred or assigned to or in any manner
directly or indirectly used by any person,firm or corporation other than the one to whom issued,for
any purpose.
(5) Registration Suspended. The Plumbing and Mechanical Board shall have the
authority to suspend any registration issued under this section for any of the following acts by the
Registrant:
(a) Continued work after the issuance of a stop order.
(b) Initiating work in violation of the Board's decision or prior to the Board's
decision.
(c) Causing or permitting the unauthorized or prohibited use of a valid registration,
by another, such as to allow the rights and privileges of registration to be applied to one not duly
registered.
(d) Judgment entry of two(2)violations of any of the provisions of this chapter
committed within a period of twelve(12)consecutive months.
Such suspension of registration shall be for a time not to exceed six (6) months. After
expiration of such period of time as the Board shall have designated, and after payment of any
outstanding penalties,costs, fees and proof of compliance and routine renewal fee,if it has become
due in the interim,the suspended registration shall again become valid and effective.
(6) Registration Revoked. The Plumbing and Mechanical Board shall have the authority
to revoke any registration issued under this section for:
(a) A violation constituting the practice of any fraud or deceit in securing(a) a
license or(b)a permit.
(b) Three(3)violations of this chapter committed within a period of twelve(12)
consecutive months.
Such revocation of a registration by the Board shall be full and final cancellation of such
registration, made effective on the date of the Board's decision. Any Registrant so judged by the
Board shall not,thereafter,be allowed to be registered again in the City.
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(7) Suspension or Revocation Hearing. In considering allegations under this section
regarding suspension or revocation of a registration,the Board shall proceed upon sworn information
furnished it by an official of the City,or by any person. Such information shall be in writing and shall
be duly verified by the person familiar with the allegations made. The Board shall issue an order
setting the matter for hearing at a specified time and place,and the Secretary of the Board,with the
advice of the City Attorney, shall cause a copy of the Board's order, and of the allegations, to be
served upon the Registrant by registered mail at least fifteen(15)days before the date set for the hear-
ing. The Registrant may appear in person or by counsel at the time and place named in the order and
present his/her defense to the Board. The City Attorney shall provide counsel for the Board. If the
Registrant fails or refuses to appear,the Board may proceed to hear and determine the allegations in
his/her absence. If he/she admits the allegations, or if,upon a hearing,the Board fords any of the
allegations to be true,it may enter an order suspending or revoking the registration. Suspension or
revocation resulting from a decision of the Board shall preclude the Registrant from securing a permit
for work controlled by that registration in the City.
(Ord.No. 3198, Sec. 1, 9-24-92; Ord. No. 3221,Sec. 4, 3-23-93; Ord.No. 3501, Sec. 1, 10-13-98)
Sec.21.303. PLUMBING LICENSES
It is the purpose of this section to provide for the examination and licensing of journeyman
and master plumbers in order to protect the public from hazard to life and property that might arise
from improper installation of plumbing systems.
(1) Application for License Required. Each applicant for a license as a journeyman
plumber shall fill out and file,an application for license on forms furnished,submit proof of at least
8,000 hours of apprenticeship signed by a journeyman plumber(s) worked under and plumbing
contractor(s) and pay the required testing fee. Each applicant for a license as a master plumber shall
fill out and file an application for license on forms furnished, submit proof of experience as a
journeyman plumber, and pay the required testing fee. A registered apprentice who is currently
working under supervision of a City of Ames licensed journeyman plumber may take the journeyman
plumbing exam prior to having completed 8,000 hours. However,upon passing the examination,a
license will not be issued until completing the required 8,000 hours. Prior to testing the application
shall be reviewed and approved by the plumbing inspector. Should the accuracy of the application or
qualifications of the applicant be questioned,the Board shall render its judgment in the matter.
(Ord.No. 3221,Sec. 5, 3-23-93)
(2) Notice of Examination. When an application for a plumbing license has been filed
and the applicant has been approved to take the licensing examination,the Secretary of the Plumbing
and Mechanical Board shall notify the applicant of the place and time where the examination will be
held.
(3) Authorization to Issue License. Upon passage of the licensing examination, the
applicant for a journeyman or master license shall pay a licensing fee as set by the City Council and
then the license shall be issued.
(4) Licenses Not Transferable; Expiration, Renewal; Fee. Licenses are not
transferable. All plumbing licenses issued prior to January 1, 1999 shall expire on the 31st day of
December, 1998. Beginning January 1, 1999,licenses issued shall be valid for no more than three
years with a single common expiration date such that licenses issued on or after January 1, 1999 shall
all expire on the 31st day of December,2001,with similar three year licensing intervals thereafter.
Licenses may be renewed upon the payment of a reasonable fee set by the City Council to cover cost
of administration. Failure to renew a license within 30 days after December 31 shall require retesting.
After that 30 day grace period the Board shall not waive the requirements to retest. During the 30 day
grace period the Secretary of the Board may sign renewal licenses.
(5) Recognition of Licenses from Other Cities. The plumbing inspector may,without
examination, issue a license to any plumber holding a license from another city determined by the
plumbing inspector to have licensing standards similar to those of the City of Ames. Each candidate
for such reciprocal journeyman or master license shall fill out the application and be approved by the
Secretary of the Board and pay licensing fees before starting any work for which an Ames j oumeyman
plumbing license or master plumbing license,or both,is required. The City of Ames shall reciprocate
with any city in the State of Iowa that has equivalent licensing standards.
(Ord.No. 3552, 3-7-00)
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(6) Licenses to be shown. Licenses shall be carried at all times while engaged in
plumbing work in the City of Ames. At the inspector's request licenses must be shown. If a license
cannot be presented at an Inspector's request,work shall stop until the license is presented.
(7) License Suspension. The Plumbing and Mechanical Board shall have the authority
to suspend the license of any plumber for any of the following acts:
(a) Judgment entry of two(2)violations of any of the provisions of this chapter
committed within a period of twelve(12)consecutive months.
Such suspension of license shall be for a time not to exceed six(6)months. After expiration
of such period of time as the Board shall have designated,and after payment of any outstanding penal-
ties,costs,fees and proof of compliance and routine renewal fee,if it has become due in the interim,
the suspended license shall again become valid and effective.
(8) License Revocation. The Plumbing and Mechanical Board shall have the authority
to revoke the license of any plumber for any of the following acts:
(a) Any fraud,deceit or misrepresentation in the application or examination for a
plumbing license.
(b) Judgment entry of three(3)violations of any of the provisions of this chapter
committed within a period of twelve(12)consecutive months.
Such revocation of a license by the Board shall be full and final cancellation of such license,
made effective on the date of the Board's decision. Any Licensee so judged by the Board shall not,
thereafter,be allowed to be registered again in the City.
(9) Suspension or Revocation Hearing. In considering allegations under this section
regarding suspension or revocation of a license, the Board shall proceed upon sworn information
furnished it by an official of the City,or by any person. Such information shall be in writing and shall
be duly verified by the person familiar with the allegations made. The Board shall issue an order
setting the matter for hearing at a specified time and place,and the Secretary of the Board,with the
advice of the City Attorney, shall cause a copy of the Board's order, and of the allegations, to be
served upon the licensee by registered mail at least fifteen(15)days before the date set for the hearing.
The licensee may appear in person or by counsel at the time and place named in the order and present
his/her defense to the Board. The City Attorney shall provide counsel for the Board. If the licensee
fails or refuses to appear, the Board may proceed to hear and determine the allegations in his/her
absence. If he/she admits the allegations,or if,upon a hearing,the Board finds any of the allegations
to be true, it may enter an order suspending or revoking the license. Suspension or revocation
resulting from a decision of the Board shall preclude the licensee from doing any plumbing work in
the city as long as the suspension or revocation is in effect.
(10) Any and all work for which a plumbing permit is required by Sec.21.201(1)shall be
done by one of the following:a)a licensed journeyman plumber;b)by an apprentice plumber under
supervision;or c)a person exempt under Sec.21.304.
(Code 1956, Sec. 20-7, 8, 9, 12, 13, 15; Ord.No. 821,Sec. 8, 11-22-55; Ord.No. 2354, Sections 1,
2, 10-6-70;Ord.No. 3042,Sec.2, 3-28-89;Ord.No. 3137,Sec.2-4, 7-23-91; Ord.No. 3198,Sec.
1, 9-24-92; Ord. No. 3501, Sec. 1, 10-13-98)
Sec.21.304. EXEMPTIONS.
(1) No such license or registration procedure shall be required for plumbing work to be
performed on a single family residential structure when the person performing the plumbing work
is the owner of the structure, and has his/her legal residence there. The homeowner shall be
automatically termed a Licensee/Registrant for the purposes of such a project. Notwithstanding such
relief from licensing/registration,all requirements for permits for the work shall remain in force. The
homeowner may be required to show the plumbing inspector on a drawing how the plumbing work will
be done before a permit is issued.
(2) No license or registration procedure shall be required for a mobile home dealer or
employee of a mobile home dealer to perform water,gas, or utility service connections in a mobile
home space or within ten feet of such space,located in a mobile home park,all within the meaning and
intent of Section 322B.3(5,)Code of Iowa. The requirements for permits and inspections remain in
effect, and the mobile home dealer shall pay the permit and inspection fees. No homeowners or
mobile home dealer will be allowed to tap a water main, sanitary or storm main or repair nor be
allowed to install a building sanitary sewer,water service,foundation drain,or a storm sewer or make
repair of such.
(Ord.No. 2 70 7, Sec. 2, 2-20-79; Ord. No. 3198, Sec. 1, 9-24-92; Ord. No. 3501, Sec. 1, 10-13-98)
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Sec.21.305. APPRENTICES.
(1) An apprentice shall only do work for which the apprentice's employing plumbing
contractor holds the plumbing permit.
(2) No more than five(5)apprentices shall be supervised by one journeyman plumber.
(3) Each apprentice plumber shall register initially with the plumbing inspector. If
registration is not received, time required for the 8,000 hours needed to apply for a journeyman's
license will not be credited towards the required 8,000 hours during the period of time an apprentice
is not registered. There shall be a registration fee paid to the City Clerk's Office. The plumbing
inspector shall issue an apprentice license to the apprentice. The license shall be carried by the
apprentice at all times and the apprentice shall present the license upon request of the plumbing
inspector.
Sec.21.401. PLUMBING AND MECHANICAL BOARD CREATED;MEMBERSHIP,
APPOINTMENT;QUORUM;AUTHORITY
(1) Membership,Quorum. There is hereby created a Plumbing and Mechanical
Board, of five(5)members consisting of a journeyman plumber, a master plumber, a journeyman
mechanical trade person, a master mechanical trade person and a fifth member who shall be a
journeyman or master of either trade or a person with professional teaching experience or study in the
engineering of plumbing or mechanical systems. There shall not be more than one member employed
by the same employer. A plumbing inspector for the City of Ames shall attend and participate in all
meetings of the Board,and shall serve as secretary to the Board.
(2) Records of Board Proceedings. A record of all proceedings of the Board shall
be kept which shall set forth the issues or requests submitted to the Board,the reasons for the Board's
decisions,the vote of each member,the absence of a member,and any failure of a member to vote.
(3) Authority of Board. The Board has the responsibility and authority to:
(a) Approve areas to be administered.
(b) Act as a Board of appeals to hear appeals from decisions of an Inspector
when it is claimed that the true intent of the plumbing or mechanical code has been incorrectly
interpreted,the provisions of the code do not apply,or an equally good or better form of construction
can be allowed.
(c) The Board shall reviewproposed changes to this chapter to the plumbing
or mechanical codes and make recommendation to the City Council.
(d) The Board shall adopt,from time to time such rules and regulations as
it may deem necessary to carry into effect the Board's duties as set out in this chapter.
(e) The Board shall have no power to waive any provision of the plumbing
or mechanical code.
(f) The Board shall have no authority over activity in the City right-of-ways
or easement. That authority is reserved to the City Director of Public Works.
(g) The Board shall have no authority over the sizing of water meters. That
authority is reserved to the City Director of Water and Pollution Control.
(Ord. No. 3197, Sec. 1, 9-24-92; Ord. No. 3219, Sec. 2, 3-23-93)
(4) Term of Office of Board Members. The term of office of the members of the
Plumbing and Mechanical Board shall be three years.Vacancies shall be filled for any unexpired term
in the same manner as original appointments. The terms shall begin on April 1 of the year of
appointment.
If a member fails to regularly attend meetings,the member may be removed by action of the
City Council,but only after the member has been given reasonable notice that his or her failure to
regularly attend meetings may subject the member to removal from the Board.
No member shall serve more than two consecutive terms.
(Ord.No.821,Sec.2, 11-22-55;Code 1956,20-3;Ord.No.3198,Sec. 1,9-24-92;Ord.No.
3227, Sec. 1, 6-8-93; Ord. No. 3374,Sec.], 2-27-96; Ord. No. 3501, Sec. 1, 10-13-98)
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(5) Board Meetings. The Board shall meet upon notice of the chairperson of the
Board within ten(10)days of the filing of an appeal or for other necessary business.The Board shall
meet at least semi-annually and shall hold additional meetings as necessary to hear appeals or conduct
other business. Special meetings may be called at any time by the chair of the Board or the plumbing
inspector,or upon written request of two members of the Board made to the chair or made to plumbing
inspector.
(Ord.No.821,Sec.5, 11-22-55;Code 1956,20-5;Ord.No.987,Sec. 1,2-7-61;Ord.No.3198,Sec.
1, 9-24-92; Ord. No. 3501, Sec. 1, 10-13-98)
(6) Voting by the Board. The Board shall vote on any question involving an
appeal of the Inspector's decision; and, in the event of a tie vote, said decision shall be deemed
affirmed. In proceedings relative to the suspension or revocation of licenses or certificates,at least
three members shall concur in such suspension or revocation.
(7) Compensation of Board. The members of the Plumbing and Mechanical
Board shall serve without compensation.
(Ord.No. 821,Sec.2, 11-22-55; Code 1956, 20-2; Ord.No. 3198, Sec. 1, 9-24-92; Ord.No. 3501,
Sec. 1, 10-13-98)
(8) Officers of Board. The Board shall annually select one of its members to act
as chairperson,and one to act as vice chairperson. Records of the Board shall be maintained in the
office of the Inspection Division. The inspector shall assist the Board in preparing and conducting
examinations.
(Ord.No.821,Sec. 1&4, 11-22-55;Code 1956;Ord.No.3198,Sec.1,9-24-92;Ord.No.3221,Sec.
6, 3-23-93; Ord.No. 3501, Sec. 1, 10-13-98, Ord. No. 3704, 3-25-03)
Sec.21.402. APPEALS FROM INSPECTOR'S DECISION
(1) Any person aggrieved by a decision of the plumbing inspector affecting interpretation
may request and shall be granted a hearing on the decision provided that within 15 days after the date
the person received notice of the decision, an application is filed in writing with the Inspection
Division,setting forth a brief statement of the grounds for appeal. Upon receipt of the request,the
Inspector shall give the petitioner written notice thereof at least three days before the date set.
(2) All hearings shall be public,in accordance with the laws of the State of Iowa relating
to government agency meetings. The hearing shall be held in accordance with rules adopted by the
Board and City Council. At the hearing the appellant and/or agent shall be given an opportunity to
be heard. The Inspector shall have an opportunity to show why his/her decision should be affirmed.
All interested persons shall be given an opportunity to be heard.
(Ord.No. 2354, Sec. 2, 10-6-70; Ord. No. 3198, Sec. 1, 9-24-92; Ord. No. 3501, Sec. 1, 10-13-98)
Sec.21.403. DECISION.
After a hearing, the Board shall affirm, modify or overrule the decision of the Inspector.
Every action of the Board shall be reduced to writing,stating its fmdings and reasoning,and signed
by the chairperson. The decision shall be promptly filed and sent to the appellant. If the appeal is
denied by the Board,the appealing party shall have the work completed and inspected in accordance
with the plumbing code requirements,or the work done corrected to come into compliance with the
code,within 30 days. Failure to do so shall be a violation of this section.
Note: It shall not be legal for any employee of the City or City department to overrule the Board's
decision.
(Ord.No. 3198, Sec. 1, 9-24-92; Ord. No. 3501,Sec. 1, 10-13-98)
Sec.21.404. ENFORCEMENT OF DECISION
The plumbing inspector shall take immediate action to enforce the decision of the Board.
(Ord.No. 3198,Sec. 1, 9-24-92; Ord. No. 3501, Sec. 1, 10-13-98)
Sec.21.405. CODE AMENDMENTS.
(1) Authority - the Plumbing and Mechanical Board shall review and make
recommendation on any and all proposed changes to this code. Recommendations shall be forwarded
to the City Council for final action.
(2) Philosophy-It shall be the philosophy of the City that the local code should follow
as closely as possible the national standards as established by the Uniform Plumbing Code.
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(3) Procedure for Amendment
(a) Any proposed change to this chapter shall initially be brought to the Board for
public hearing and recommendation to the City Council for final action.
(b) Written notification ofproposed changes shallbe givento individuals registered
with the City prior to the public hearing before the Board.
(Ord.No. 3198, Sec. 1, 9-24-92; Ord. No. 3501,Sec. 1, 10-13-98)
Sec.21.501. AMENDMENTS,ADDITIONS AND DELETIONS.
The provisions of the UPC are modified for the City of Ames as follows:
1) Amend Section 101.4.1.3 UPC by adding a new paragraph as follows:
Service Line Abandonment. Whenever an individual service line is
permanently abandoned, the service line shall be physically disconnected as
described below. The service shall be considered to be abandoned when a permit
is issued for a new or replacement service for that property. Service shall also be
considered to be abandoned when a service has been inactive or unused for six
months,unless an extension is granted in writing by the City. The service line shall
be physically disconnected within 30 days after abandonment. The water service
shall be disconnected at the corporation cock on the main. The corporation shall
be either capped or plugged with a manufactured fitting. Sanitary sewer and
foundation drain service lines shall be disconnected at the curb on paved streets
with a manufactured plug. All service abandonments shall be inspected either by
the Inspection Division or by the Engineering Division ofPublic Works. However,
when the forgoing would entail cutting concrete or asphalt paving that is less than
five years old,the Director of Public Works may require, as an alternative to the
forgoing, that the owner of the property served by the water service line make a
cash deposit or provide a letter of credit,for a period not to exceed five years,to
secure for the City the cost of performing the said work at some time in the future.
(Ord.No. 3649,2-26-02)
2) Section 101.5.4 UPC is reworded to state as follows:
Plumbing systems that are part of a building or structure undergoing a change
in `use' or `occupancy', as those terms are defined in the International Building
Code, shall comply with all requirements of the UPC which may be applicable to
such new `use' or occupancy. The Building Official shall give direction to the
plumbing inspector as to when a building is undergoing such change in use or
occupancy.
3) Section 102.3.2 UPC is deleted.
4) Amend Section 103.2.2.2 UPC by adding subsections(a),(b)and(c)as follows:
(a) No building moved into the city shall be connected to the city
sewer or water system until the plumbing in such building has been inspected by the
plumbing inspector and found in compliance with this chapter.
(b) When a building is moved from one location to another within
the city,no additional plumbing work or connection to the sanitary sewer or water
utility will be done until the plumbing in said building has been reconstructed to
comply with this chapter and tested.
(c) When an area is annexed to the City,buildings in the annexed
area will not be connected to the City water and sewer service until the plumbing
of the building is inspected and brought into compliance with the requirements of
this chapter,when directed by the Building Official
5) Section 103.3.4 UPC is amended by adding:
If the work for which a permit is issued is not completed within one year from the
date of the permit, a new permit shall be required to complete the work. If a new
permit to complete the work is not obtained,the unfinished work shall constitute a
violation;and any work done to complete the unfinished work without a new permit
shall be a violation.
6) Section 103.4.5.2 UPC is reworded to state:
The Inspection Division shall not authorize the refunding of more than eighty
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percent(80%)of the permit fee when no work has been done under a permit. When
a permit is cancelled at the request of the permit holder,there shall be a cancellation
fee.
7) Section 103.4.4 UPC is deleted.
8) The first paragraph of Section 103.4.5.3 UPC is deleted.
9) Section 103.5.1.3 UPC and 103.5.1.4 UPC are amended by adding:
Testing done on all systems is allowed to be done without the presence of the
plumbing inspector,except for the static pressure test of a fire line.
10) Section 103.5.3.1 UPC is deleted.
11) Section 103.5.6.1 UPC is reworded to state:
Notices of correction or violation shall be written by the plumbing inspector
and mailed or delivered to the permittee,plumber,homeowner,mobile home dealer
or authorized representative. Refusal,failure,or neglect to comply with any such
notice or order within thirty(30)days from time correction notice is written,shall
be considered a violation of this code and shall be subject to the penalties set forth
in this code.
Ifpermit holder has five(5)or more correction notices not completed within
a period of time allowed by the plumbing inspector,the permit holder shall not be
allowed to apply for any additional permits until said correction notices have been
completed to the satisfaction of the plumbing inspector.
12) Amendment Section 301.1 UPC to add as follows:
Copper tube for underground drainage and vent piping shall have a weight of not
less than that of copper drainage tube Type L. Copper tube for above-ground
drainage and vent piping shall have a weight of not less than that of copper drainage
tubing Type M. EXCEPTION: Type DWV may be used in one-and two-family
dwellings.Copper tube for water piping shall have a weight of not less than Type
M. EXCEPTION: Underground water piping shall have a weight not less than
Type K copper tubing.
13) Amend Section 305.1 UPC by adding the following:
More than one connection to a public sewer may be allowed by the Administrative
Authority.
14) Section 311.3 UPC is reworded to state:
A 3" x 2"wye may be installed on a vertical stack between the water closet stool
flange and the closet elbow. The two inch(2")takeoff shall not be more than four
feet(4')measured vertically from the closet flange. The two inch line shall only
serve a lavatory sink. No closet elbow with a side outlet shall be allowed.
15) Amend Section 313.6 UPC to state:
No water lines or P traps shall be installed in an exterior wall. No water lines or P
traps shall be located in an unheated crawl space or be located in an unheated
ceiling of a parking garage that is open to the atmosphere.
16) Amend Section 315 UPC by adding new subsections as follows:
315.5 Responsibility for protecting the public. The plumbing contractor shall
without further or other order,provide,erect and maintain,at all times during the
progress and suspension of the work, and until final completion thereof, and
removal of all obstruction occasioned by the work within the street limits,suitable
and requisite barriers, signs or other adequate protection and shall maintain such
warning lights,barricades or watchmen as may be necessary,to insure the safety of
the public. Signs used shall conform to the most recent edition of the Iowa Manual
on Uniform Traffic Control Devices. The Public Works Department of the City
shall be the Administrative Authority in that regard.
315.6 Excavations within street limits. It shall be unlawful for any person,firm
or corporation doing plumbing work to begin any excavation or pavement cut,or
to place any obstructions within the limits of any street, avenue, alley or public
place within the corporate limits of the City of Ames, Iowa, without first having
made application to the City and receiving a permit therefore. All matters
pertaining to the cutting of pavement or excavation and filling of trenches and
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ditches within the limits of streets and alleys shall be in accordance with the
provisions of the City ordinances relating thereto. Public Works shall be the
Administrative Authority.
315.7 Backfilling building service ditches. The City or the plumbing contractor,
at the City's option,will backfill all service ditches and excavations within the limits
of all streets,alleys and public places within the corporate limits of the City. The
plumbing contractor shall notify the City when such ditches or excavations are
ready for backfilling and the City will fill the same as promptly as possible
thereafter, or will permit the contractor to backfill. The plumbing contractor, if
allowed to backfill, will maintain a two-year maintenance bond on the backfill,
payable to the City. The responsibility of the plumbing contractor for the
maintenance of warning lights,barricades or other protection shall cease when the
City begins the work of backfilling the ditch or not later than the end of the next
working day,excluding Saturday,Sunday or holidays,from the time of the receipt
of written notification by the city that the ditch is ready for backfilling. The City
will charge the plumbing contractor for such backfilling work in accordance with
such schedule of fees and rates as shall from time to time be promulgated by
resolution of the City Council. All other ditches outside public areas shall be back-
filled by the plumber.
315.8 Manufactured Plug Required. All water, sanitary sewer, and foundation
drain service lines shall be plugged with a water-tight manufactured plug when left
unattended during installation. In this instance,unattended shall mean for any time
period greater than one hour. No cast iron blind plugs shall be used. The following
are approved caps: Dearborn No.3412,Ecno plug,IPS Corporation,S402 Water
Tite;Cherne,Part No.270-245-Bell;Cherne,Part No.270-296-4"J.D.
315.9 Dry Ditch Required. The contractor will install the water,sanitary sewer,
or foundation drain service lines in a'dry ditch'. If necessary,the contractor shall
over-excavate,furnish and place 1"concrete stone and provide necessary pumping
equipment to maintain dry working conditions. Under no conditions shall the
contractor discharge surface or groundwater to the sanitary sewer system or install
water or sanitary sewer service lines in standing water unless on-site authorization
is given by the Inspector. The generally accepted understanding of a"dry ditch"is
a work area without standing water and without flowing mud. Failure to have or
provide adequate dewatering equipment shall not be accepted as justification for
waiver of the'dry ditch'requirement. 17)Amend Section 316.1.6 UPC to state as
follows:
PVC pipe and fittings shall be cleaned and joined with manufacturer's solvent
cements.
18) Deleting Sections 318,402.4,and 402.6 UPC.
19) Amend Section 405.2 UPC by adding the following:
No bathtub,combination bathtub/shower,shower or whirlpool tub shall be installed
so that the control valve, waste/overflow drain, or any fittings(s) would not be
accessible. In that regard the above stated valves, etc. may be covered by sheet
rock but access shall not be blocked by cabinets,mirrors,or counters,in an exterior
wall,or back-to-back fixtures.
20) Amend Section 409.1 UPC to state:
All water closet bowls shall be of the elongated type with open front seats except
in dwelling units,motel and hotel rooms.
21) Amend Section 412.2 UPC by adding subsection 412.2.4 as follows:
In all buildings, a three-inch(3") floor drain shall be located on the lowest floor
level where the water meter is located. A three-inch(3")floor drain shall be located
in same room whenever a RPZ type backflow preventer is installed that discharges
water. A two-inch(2")or larger floor drain shall be provided in the same room the
water heater is located on the lowest floor level. Exception:Existing water heaters
and water meters unless relocated.
22) Amend Section 412.3 UPC to read:
All drain lines that are provided for walk-in freezers,walk-in coolers,refrigerated
storerooms,or other locations where refrigerated beverages are stored,shall have
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all drain lines indirect wasted to a floor drain or floor sink located outside the room
or unit. No floor drains are allowed inside a refrigerated room where food or
beverage is stored.
23) Amend Section 413.4.2 UPC to read:
In food establishments the fixture requirements are determined by the statutes and
regulations of the State of Iowa. The following requirements apply to food
establishments,bars and night clubs:
a) Bars,taverns and nightclubs shall be provided with a three(3)
compartment glass washing sink and a drain board with hot and cold running water.
The sink shall have an indirect waste to a floor sink with an air gap.
b) A restaurant shall have either a three (3) compartment ware
washing sink or an automatic dish washing machine of commercial type,including
a booster heater along with a two-compartment sink.
c) A hand-washing sink with hot and cold running water shall be
installed in each food preparation area in restaurants and behind each bar area of
bars,taverns and nightclubs.
d) A mop/utility sink shall be required with hot and cold running
water in each restaurant,bar,tavern or nightclub, for mop and waste water. The
mop/utility sink shall not be used as a hand-washing sink.
24) Amend Section 419.0 UPC to add the following:
a) Below ground rough-ins for future plumbing fixtures,
waste/vent shall be piped above the finished floor level and then be plugged or
capped with appropriate fittings or devices.
b) A two-inch(2")future vent shall be terminated with other vents
or terminate through the roof. Such vent shall be capped in the floor joist area for
future use and labeled or marked as such.
25) Section 421.0 UPC is deleted.
26) Amend Table 4-1 UPC by changing the footnotes pertaining to that table as follows:
a) Delete the second sentence of footnote 12, and add: Water
stations only apply to where food is sold under a State of Iowa food establishment
licence.
b) Change footnote 13 to read as follows:
There shall be a minimum of one (1) drinking fountain per occupied floor in
schools,theaters,auditoriums and dormitories. Offices and public buildings with
more than ten (10) employees shall have one drinking fountain for the first one
hundred fifty(150)persons and one(1)additional fountain for each three hundred
(300)persons thereafter. Each floor level shall have at least one drinking fountain.
A bubbler type faucet located at a sink will not be recognized as a drinking
fountain.
c) Add footnotes 15, 16,and 17 as follows:
Footnote#15-Every facility that serves beer or liquor shall provide separate male
and female restrooms to meet the requirements of the Iowa Department of
Inspections and Appeals(481 IAC 31.9).
Footnote#16-Every men's toilet room,etc.shall have at least one urinal meeting
the requirements of the Iowa Handicap Code 103A and ANSI Standard Al18-1-
1992,if:
a) a toilet room, restroom, or bathroom is classified as
handicapped accessible by the Building Official,or
b) a building has ten or more employees,or
c) a building, except residential buildings, has ten or more
customers at a time.
Footnote#17-No detached garage or accessory building shall contain a bathroom.
A hand sink and water closet are allowed. Exception: Recreation uses requiring
plumbing, such as a pool house. This applies to private garages and accessory
buildings in agricultural,residential and hospital-medical districts.
Footnote#18-Each toilet room and bathroom shall have an exhaust fan vented to
the exterior of the building.
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27) Section 501.0 UPC is amended by deleting the second sentence thereof
28) The UPC is amended by deleting Table 5.1.
29) Section 502.14 UPC is amended by adding the following:
No water heater shall be used for hydronic heating unless the water heater is
protected by a reduced pressure backflow preventer with a thermal expansion tank.
The said water heater shall not also serve as the water heater for domestic use but
each shall be independent of each other.
30) Section 503.0 UPC is amended by adding the following:
The water heater shall be inspected no later than five(5)days after the installation.
It shall be unlawful for any person to install or replace any water heater or boiler
without obtaining a plumbing permit before installation and no later than five(5)
working days after installation.
31) Section 505.1 UPC is amended by adding the following:
New buildings or existing buildings where a water heater or boiler is installed
or replaced which depends on combustion of fuel for heat,shall not be installed in
a room used for sleeping purposes, a bathroom, or a clothes closet. Where said
water heater or boiler opens into a bedroom,bathroom or clothes closet,there shall
be a minimum of two (2) doors separating the water heater/boiler from the
bedroom, bathroom or clothes closet. On new construction and remodeled
structures The room where the water heater or boiler is located shall have at
minimum a hollow core door. Exception:Direct vent water heater/boiler.
In a new building or structure,no water heater or boiler,which depends on
the combustion of fuel for heat,shall be installed in or under a stairway or landing.
Exception:An electric or direct vented water heater or boiler;and,a replacement
water heater that opens into an existing bathroom,as long as no partial remodeling
or finishing of the area is being done.
No fuel fired water heater shall be installed in a manufactured or mobile
home unless allowed by manufacturer.
32) Section 507.0 UPC is reworded to read:
Any building or structure built after the year"1980"shall be classified by this code
as unusually tight construction.
33) Section 507.3.1(1)UPC is reworded to read:
Buildings or structures built prior to 1980, meeting the requirements of section
507.2 shall have combustion air openings that extend within the upper twelve(12)
inches of the appliance enclosure and one combustion air opening that extends
within the lower twelve(12) inches of the enclosure. Building or structures built
after the year 1980 shall have at least one air duct that is a minimum of four(4)
inches inside diameter or larger that is obtained either from the attic or exterior of
the building. Material allowed shall be a minimum of 28 U.S.gauge steel,PVC,or
flexible insulated duct. Dryer vent pipe shall not be used. Exception:When a water
heater is replaced in an existing building no combustion will be required until a
boiler or furnace is replaced. This exception does not apply when a building is
being remodeled or a basement is being finished.
34) Section 507.5 UPC is amended by adding the following:
All buildings built before 1980 shall be classified as ordinary tightness. All
buildings built after 1980 shall be classified as unusually tight construction.
35) Section 508.1 UPC is reworded to read:
An approved dielectric insulator or insulated lined nipple shall be required
on water heaters when connecting copper or brass pipe or fittings to existing
galvanized pipe or fittings.
36) Section 508.4 UPC is amended to add the following to the end of the Section:
The water heater pan may also be drained by using a one and one-half(1-1/2)
inch Schedule 40 PVC,rigid copper or CPVC pipe and fitting piped to a lower level
floor drain or floor sink. The drain tube for the relief valve on the water heater may
discharge to the water pan with a required one and one-half(1-1/2)inch air gap and
a minimum of six(6)inches from the floor.
37) Section 508.5 UPC is deleted.
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38) Section 508.14(1)UPC is amended to add the following to the end of the Section:
Any existing water heater or boiler that is located in a room that opens into
a residential or commercial garage,shall have the pilots,burners,heating elements,
switches,etc.at least eighteen(18)inches above the finished floor level(or)have
a twenty-minute door that is air tight that opens into a garage. The hinges would
have to be spring-loaded or have a self-closing door closure.
39) Section 508.15 UPC is amended to add the following:
Any water heater or boiler that is located in a repair garage,maintenance garage,
body shop, or any other building (excluding dwelling units) that contain
combustible fumes and gases shall have the water heater or boiler a minimum of
eight(8)feet off the fmish floor. The City Fire Inspector may make an exception.
40) Section 510.5.1.3 UPC is reworded to state:
An approved liner shall be installed in an existing unlined masonry chimney.
41) Section 510.5.2.1 UPC is reworded to state:
When a water heater or boiler is replaced,any existing masonry chimney shall have
either a metal vent cap or have a roof built over the chimney with hardware cloth
enveloping the sides. The hardware cloth shall have openings no smaller than one-
half('/2)inch.
42) Section 510.6 UPC is reworded to state:
Gas Vents. Single wall metal vent connectors used in new structures and existing
structures shall be provided with clearances from combustible material of not less
than six(6)inches. Exception:The plumbing inspector may make an exception on
existing structures if an undue hardship to owner would be created by this section.
42) Table 5-4 UPC Roof pitch heights shall be amended by adding the following at the end
of the table:
All penetration heights out of the roof shall be two(2)feet minimum for any water
heater or boiler.
44) Section 510.7.4.2 UPC is amended by rewording to state:
Single wall metal used as a connector in new structures or existing structures shall
not originate in any unoccupied attic,mezzanine,ceiling,or concealed space and
shall not pass through any attic,inside wall,floor,or concealed space and shall be
located in the same room or space,as the fuel burning water heater or boiler.
45) Section 510.9.1 UPC shall be amended by adding the following:
The vent connector for new structures and existing structures shall not be more than
five(5)feet from the masonry chimney or metal vent when the vent connector is
three(3)inches in diameter. If the vent connector is four(4)inches in diameter,the
vent connector cannot be more than eight(8) feet. If vent connector is a longer
distance than what is allowed in this section the water heater or boiler shall be
relocated. Inspection may make an exception if this code would cause undue
hardship to the owner.
46) Section 601.2 UPC is deleted.
47) Section 603.0 UPC is amended as follows:
Section 603.3.2 of the UPC is amended by adding: The test report shall be sent to
the Administrative Authority no later than ten working days after the test. Section
603.4.13 UPC is amended by adding:A stainless steel Watts 913d dual check valve
backflow preventor or equivalent shall be used on all portable water lines that have
a carbonated soda fountain or vending machine connected. Section 603 UPC is
further amended by adding 603.4.21 as follows:
(a) Purpose. The purpose of these cross-connection control regulations is:
(i) to protect the City ofAmes Public Water Supply(PWS)
from the possibility of contamination or pollution through cross-connections by
isolating within the customer's internal distribution system(s) or the customer's
private water system(s)such contaminants or pollutants that could backflow into the
PWS;and
(ii) to provide for the maintenance of a continuing program
of cross-connection control that will systematically and effectively prevent the
contamination or pollution of the PWS.
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(b) Definitions
(i) Approved Backflow Prevention Assembly For
Containment.Abackflowprevention assembly which is approved by the University
of Southern California-Foundation for Cross-Connection Control and Hydraulic
Research. The backflow prevention assembly must also be listed by the
International Association of Plumbing and Mechanical Officials, or by the
American Society of Sanitary Engineering. The approval and listing requirements
do not apply to an air gap used as an approved backflow prevention assembly for
containment.
(ii) Auxiliary Water Supply. Any water supply on or
available to the premises other than the PWS. These auxiliary waters may include
used waters;industrial fluids;or water from another purveyor's public potable water
supply or any water source(s)such as a well,spring,river,stream,and so forth.
(iii) Backflow. The undesirable reversal of flow into the
public water distribution system.
(iv) Backflow Prevention Assembly.An assembly or means
to prevent backflow.
a. Air Gap. This is a physical break between the
PWS and the customer's water system. The air gap is to create an unobstructed
vertical distance between the opening of any pipe or faucet conveying water to a
tank, plumbing fixture, receptor, or other assembly and the flood level of the
receptacle. These vertical separations must be at least twice the diameter of the
water supply outlet,but never less than one-inch separation.
b. Reduced-Pressure Principle Backflow Prevention
Assembly(RP). The RP consists of two independently acting check valves together
with a hydraulically operating,mechanically independent pressure differential relief
valve located between the check valves. These units are located between two
tightly closing resilient-seated valves as an assembly,and equipped with properly
located resilient-seated test shutoffs.
C. Double Check Valve Assembly(DC). The DC
consists of two internally loaded check valves, either spring loaded or internally
weighted, installed as a unit between two tightly closing resilient-seated shutoff
valves with properly located resilient-seated test shutoffs.
(v) Containment. A method of backflow prevention which
requires the installation of a Backflow prevention assembly at the water service
connection.
(vi) Contamination. An impairment of a potable water
supply by the introduction or admission of any foreign substance that degrades the
quality of the water and creates a health hazard.
(vii) Cross-Connection. An actual or potential connection
between any part of a potable water system and any other environment containing
other substances in a manner that, under any circumstances, would allow such
substances to enter the potable water system.
(viii) Cross-Connection-Controlled. A connection between
a potable water system and a non-potable water system with an approved backflow
prevention assembly properly installed and maintained so that it will continuously
afford the protection commensurate with the degree of hazard.
(ix) Hazard,Degree of. The rating of a cross-connection or
water service which indicates if it has the potential to cause contamination or
pollution. The term is derived from an evaluation of the potential risk to public
health and the adverse effect of the hazard upon the potable water system.
a. Hazard - Health. A hazard upon the PWS
involving any substance that,if introduced in the potable water supply,could cause
death,illness,spread disease,or have a high probability of causing such effects.
b. Hazard-Non-health. A hazard upon the PWS
involving any substance that generally would not be a health hazard but, if
introduced into the PWS,could cause a nuisance by introducing color,taste,odor,
and so forth,or physically,chemically,or biologically alter the quality of the PWS.
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(x) Industrial Fluids System. Any system containing a fluid
or solution that may contaminate or pollute the PWS. This may include,but not be
limited to polluted or contaminated waters,all types of processed waters and used
waters originating from the public potable water system,chemicals,acids,alkalies,
cooling waters,oils,gases,and so forth.
(xi) Pollution. The presence of any foreign substance in
water that impairs, alters, or degrades its quality but does not constitute a health
hazard.
(xii) Registered Backflow Prevention Assembly Technician
(Technician). A person who is registered by the State of Iowa to test or repair
backflow prevention assemblies and report on the condition of those assemblies.
(xiii) Service Connection. The terminal end of a service
connection from the PWS; that is, the point of delivery to the customer's water
system. If a meter is installed at the end of the service connection,then the service
connection shall mean the downstream end of the meter. Service connections shall
also include water service connection from a fire hydrant and all other temporary
or emergency water service connections from the public water system.
(xiv) Thermal Expansion. Volumetric increase of water due
to heating resulting in increased pressure in a closed system.
(xv) Water-Potable. For the purposes of these regulations,potable
water is the City of Ames public water supply while it is under the city's control and jurisdiction.
(xvi) Water-Non-potable. Water that is not safe for human
consumption or that is of questionable or unknown quality.
(xvii) Water-Used. Water supplied by the PWS to a customer
after it has passed through the service connection.
(c) Administrative Authority
(i) The Administrative Authority is the Ames City Council
acting through such persons or departments as the City Council shall designate.
(ii) The Administrative Authority shall have the right to
enter,with the consent of the customer or upon the basis of a suitable warrant issued
by a court of appropriate jurisdiction, any property to inspect for possible cross-
connections.
a. All backflow prevention assemblies shall be
available for City inspection within a short notice by the Administrative Authority.
Short notice is considered to be less than 24 hours.
b. The entrance to the property to inspect for cross-
connections will not be necessary if the customer has properly installed,tested,and
maintained an approved RP on every and all service connections serving the
customer's premises.
(iii) The Administrative Authority may collect fees for the
administration of this program.
(iv) The Administrative Authority shall maintain records of
cross-connection hazard surveys, and the installation, testing, and repair of all
Backflow prevention assemblies installed for containment purposes.
(d) Where Containment Is Required
(i) At the premises listed below, an approved backflow
prevention assembly for containment shall be installed by the customer on each
service line at or near the service connection before the first branch line leading off
the service line.
a. Premises having an auxiliary water supply
b. Premises on which any industrial fluids, gases,
processed waters,or other objectionable substances are handled in such a fashion
which may create an actual or potential hazard to the PWS
C. Premises having(1) internal cross-connections
that cannot be permanently corrected and controlled, (2) intricate plumbing and
piping arrangements or where entry to all portions of the premises is not readily
accessible for inspection purposes,making it impractical or impossible to ascertain
whether or not cross-connections exist
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d. At premises having more than one water service,
not including fire protection systems, all service connections shall be protected
against backflow from the premises by installing an approved backflow prevention
assembly for containment at each service connection
(ii) Failure of the Administrative Authority to notify a
customer that they are believed to have a health hazard cross-connection and that
they shall install backflow prevention assemblies for containment shall in no way
relieve a customer of the responsibility to comply with all requirements of these
regulations.
(e). Type Of Containment Required
(i) The PWS shall be protected by an RP or an air gap
separation
a. where there is an auxiliary water supply;
b. where there is any material dangerous to health
that is handled in such a fashion as to create an actual or potential hazard to the
PWS;
C. where there are"uncontrolled"cross connections,
either actual or potential;or
d. where,because of security requirements or other
prohibitions or restrictions, it is impossible or impractical to make a complete in-
plant cross-connection survey.
(ii) The PWS shall be protected by a DC where there is
water or other substance that would be objectionable but not hazardous to health if
introduced into the PWS. An air gap separation or an RP may be used in lieu of a
DC.
(iii) The PWS shall be protected by a DC where there is more
than one water service connection. An air gap separation or an RP may be used in
lieu of a DC. Use of a DC will not be permitted if there are other conditions present
which require an air gap separation or an RP.
(iv) The Director of the City of Ames Water and Pollution
Control Department may require installation of an air gap separation,by and at the
customer's sole expense,at the service connection where records indicate a history
of threat to the public water supply system because of negligence in handling health
hazard substances or actual backflow into the PWS.
(f). New Water Services
(i) Plans shall be submitted to the Administrative Authority
for review on all new water services in order to determine the type of containment
needed.
(ii) The Administrative Authority shall require the
installation ofthe appropriate backflowprevention assembly for containment before
the initiation of water service.
(g) Fire Protection Systems
(i) A backflow prevention assembly to be used in a fire
protection system shall meet the requirements of Factory Mutual Research
Corporation(FM)and Underwriters Laboratory(UL)and the requirements of the
fire code and the building code of the City of Ames,in addition to the requirements
of paragraph(b)(i). Assemblies sized smaller than 2-1/2 inches which have not
been tested by FM and listed by UL may be allowed if approved by the City of
Ames Fire Department Chief.
(ii) An RP shall be installed on all new and existing fire
protection systems which the Administrative Authority determines to have any of
the following:
a. Interconnections with auxiliary supplies such as
reservoirs,rivers,ponds,wells,mills,or other industrial water systems
b. Use of antifreezes or other additives in the fire
protection system. An RP may be used to isolate the loop or branch containing
antifreezes or other additives when a DC is installed at the service connection.
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C. Any other facility,connection,or condition which
may cause contamination
(iii) A DC will be required for all other fire protection
systems. The DC shall be required on all new systems at the time of installation and
on existing systems at the time that they are modified.
(h) Portable Tanks. Portable tanks and vessels shall be filled
through a properly installed and maintained backflow prevention assembly or
vacuum breaker.
(i) Installation of Backflow Prevention Assemblies
(i) All backflow prevention assemblies for containment
shall be installed so that they are accessible for testing as stated in the UPC at
Section 603.3.4 thereof.The installation shall also provide the same clearances as
called for the water meter in the City of Ames Municipal Code,Section 28.205.(5).
(ii) No backflowprevention assembly for containment shall
be installed in a place where it would create a safety hazard such as,but not limited
to,over an electrical panel or above ceiling level.
(iii) The required backflow prevention assemblies for
containment shall be installed in horizontal plumbing immediately following the
meter or as close to that location as deemed practical by the Administrative
Authority unless approved in writing by the Administrative Authority. In any case,
it shall be located upstream of any branch piping. Installation at this point does not
eliminate the responsibility of the customer to protect the water supply system from
contamination or pollution between the backflowprevention assembly and the water
main,and to protect the water supply system from contamination or pollution within
the premises.
(iv) RPs for containment shall be installed so as to be
protected from flooding.
(v) RPs for containment shall not be installed in
underground vaults or pits.
(vi) All backflow prevention assemblies for containment
shall be protected from freezing. Assemblies used for seasonal services may be
removed in lieu of being protected from freezing;however,the assemblies must be
reinstalled and tested by a technician prior to the service being reactivated.
(vii) If hot water is used within the water system, thermal
expansion shall be provided for when installing a backflow prevention assembly for
containment.
(viii) Provisions shall be made to convey the discharge of
water from RPs to a suitable drain.
(ix) If interruption of water service during testing and repair
of backflow assemblies for containment is unacceptable to the customer, another
backflowprevention assembly for containment,sized to handle the temporary water
flow needed during the time of test or repair,shall be installed in parallel piping.
(j) Removal of Backflow Prevention Assemblies
(i) Approval must be obtained from the Administrative
Authority before a backflow prevention assembly for containment is removed,
relocated,or replaced.
(ii) The use of an assembly may be discontinued and the
assembly removed from service upon presentation of sufficient evidence that a
hazard no longer exists and will not be created in the future.
(iii) An assembly may be relocated following confirmation
by the Administrative Authority that the relocation will continue to provide the
required protection and satisfy installation requirements. A test will be required
following the relocation of the assembly.
(iv) An assembly may be removed and replaced,provided
the water use is discontinued until the replacement assembly is installed.
(v) An assembly maybe removed to protect it from freezing
provided that
17
a. water use is discontinued until the assembly is
reinstalled and tested;and
b. the Administrative Authority is notified in writing
within five days of the removal.
(k) Testing of Backflow Prevention Assemblies
(i) Testing of backflow prevention assemblies for
containment shall be performed by a registered backflow prevention assembly
technician(technician). The costs of required tests shall be borne by the customer.
(ii) Backflow prevention assemblies for containment shall
be tested and inspected upon installation and at least annually thereafter.
(iii) Backflow prevention assemblies for containment which
are in place,but have been out of service for more than three months,shall be tested
before being put back into operation. Backflow prevention assemblies for
containment used in seasonal applications shall be tested before being put into
operation each season.
(iv) Before being placed back into service, any backflow
prevention assembly for containment which fails a test shall be repaired or replaced.
In the case when a reported value is less than the minimum,the Director of Water
Pollution Control may approve temporary restoration of service before repairs are
completed. Backflow prevention assemblies for containment shall be retested by
a technician immediately after repair or replacement.
(v) When water service has been terminated for non-
compliance,the backflow prevention assembly for containment shall be repaired or
replaced and then tested prior to the resumption of water service.
(vi) When warranted, the Administrative Authority may
require backflow prevention assemblies for containment e o e tested at any this might time
in
addition to the annual testing requirement. Examples g
assemblies with a history of repeated failures or assemblies that have been subjected
to fire,flood,or other unusual environmental conditions.
(vii) The technician shall report the results of all inspections
and tests of a backflow prevention assembly for containment to the customer and
to the Administrative Authority on the form provided by the Administrative
Authority within ten working days of the test. The technician shall immediately
report to the Administrative Authority when and where his/her test indicates that an
assembly fails to perform and no subsequent repair is done to make the assembly
function properly.
(viii) The Administrative Authority may periodically verify
test procedures and results.
(1) Repair of Backflow Prevention Assemblies For Containment
(i) All repairs to backflow prevention assemblies for
containment shall be performed by technicians.
(ii) The technician shall not change the design,material,or
operational characteristics of a backflow prevention assembly for containment
during repair or maintenance and shall use only original manufacturer replacement
parts or equivalent parts approved by the University of Southern California -
Foundation for Cross-Connection Control and Hydraulic Research.
(iii) The repaired assembly must be tested after each repair
and pass the test before being placed back into service.
(iv) The technician shall report the repair of a backflow
prevention assembly for containment to the customer and to the Administrative
Authority within ten working days of the repair. The report shall include the list of
materials or replacement parts used and subsequent tests.
(m) Backflow Incidents
(i) The customer shall immediately notify the
Administrative Authority when the customer becomes aware that backflow has
occurred in the building,property,or private water system receiving water service.
(ii) The Administrative Authority may order that a water
service be temporarily shut off when backflow occurs in a customer's building,
18
property, or private water system. Such shut off is to protect the system from
further contamination or pollution and to allow time for locating and mitigating the
cause and extent of the contamination or pollution.
(n) Existing Backflow Prevention Assemblies For Containment
(i) All backflow prevention assemblies for containment
installed prior to November 1, 1996, that do not meet the requirements of these
regulations but were approved testable assemblies for the purpose described herein
at the time of installation and that have been properly installed and maintained,
shall, except for the testing, inspection, and maintenance requirements under
Section(k)and Section(1),be excluded from the requirements of these rules so long
as the Administrative Authority is assured that they will satisfactorily protect the
PWS. Whenever the existing assembly for containment is moved from the present
location,requires replacement,or when the use of the service area protected by the
assembly changes so that the Administrative Authority determines that the public
water system is subject to higher actual or potential hazards, the unit shall be
replaced by an approved backflow prevention assembly for containment meeting
the requirements of these regulations.
(o) Customer Non-compliance
(i) In case of non-compliance with these regulations, the
Administrative Authority shall notify the customer to comply within ten working
days. In the event of failure or upon refusal of the customer to comply as ordered,
the Administrative Authority may, after notice and reasonable opportunity for
hearing,terminate water service. Non-compliance includes,but is not limited to,
the following:
a. Refusal to allow the Administrative Authority
access to the property to inspect for cross-connections, except for those meeting
Subsection(e)(i)d.
b. Providing inadequate backflow prevention when
cross-connections exist
C. Failure to install a backflow prevention assembly
for containment which has been required by the Administrative Authority
d. Failure to test, maintain, or properly repair a
backflow prevention assembly for containment as required by the Administrative
Authority
e. Failure to comply with the requirements of these
regulations
f. Refusal to replace a faulty backflow prevention
assembly
g. Removal of a backflow prevention assembly for
containment which has been required by the Administrative Authority except for
seasonal removal as in Section I.6
h. Bypassing of a backflow prevention assembly for
containment which has been required by the Administrative Authority
i. Failure to report a backflow incident
j. Direct connection between the PWS and a sewer
line
k. A situation which presents an immediate health
hazard to the PWS
(ii) For conditions g, h, i, j, and k, the Administrative
Authority will take the following steps.
a. Make a reasonable effort to advise the customer
of intent to terminate water service.
b. Terminate water supply and lock service valve.
The water service will remain inactive until correction of the violation has been
approved by the Administrative Authority.
(Ord.No.3433,Sec. 1; 5-13-97)
48) Section 603.2.3 UPC is deleted.
19
49) Section 603.3.4 UPC is amended to change the second sentence to read:
Installations shall not be allowed over five (5) feet from the finished floor level
unless approval to do so is given by the plumbing inspector.
50) Section 603.4.9 UPC is reworded to read:
Water-cooled compressors,degreasers,or any other water-cooled equipment shall
be protected by a listed IAPMO reduced pressure principle backflow preventer.
51) Section 603.4.11 UPC is reworded to read:
Potable water make up connections to boilers, sterilizers, chillers, commercial
clothes washers, or water heaters for radiant heat, shall have an IAPMO listed
reduced pressure type backflow preventer.
52) Section 603.4.13 UPC is amended by adding:
A stainless steel Watts 913d dual check valve backflow preventor or equivalent shall
be used on all portable water lines that have a carbonated soda fountain or vending
machine connected.
53) Section 604.1 UPC is reworded to read:
The following type of pipe and fittings are allowed in the interior/exterior of a
building or structure:
Interior
Above concrete floor(lowest levell
a) soft copper(Type K,L,M)
b) rigid copper(Type K,L,M)
c) brass
d) cross linked polyethylene(PEX)(as approved by Chapter 14 of the
Uniform Plumbing Code),and which meets manufacturer's specifications.
e) ductile iron(four(4)inch or larger).
Note:Whenever PEX pipe is used and water service is renewed a 14-
gauge solid copper tracer wire with a blue jacket will be installed.
The tracer wire will start at the water main and terminate at a
weatherproof junction box. The junction box shall be accessible and
be labeled to identify junction box "tracer wire". The tracer wire
shall then continue from the junction box and terminate at the water
meter. The wire shall run from the main and be exposed at the curb
box. The junction box shall be located next to water meter remote on
the exterior of the building or structure.
Below concrete floor(lowest level
a) soft copper(type K)
b) PEX(as approvedby Chapter 14 ofthe UniformPlumbing Code),and
which meets manufacturer's specifications.
c) ductile iron(four(4)inch or larger)with flanged mechanical joints.
d) C-900 PVC DR 14(fire line).
Exterior
apter 14 of the Uniform Plumbing Code),and
a) PEX(as approved by Ch
which meets manufacturer's specifications.
b) Soft copper(Type K)
c) Brass
d) Ductile iron(flanged mechanical joint)(bolts shall be teflon coated)
e) PVC meeting AWWA C-900 standards,DR14 for fire lines and Drl8
for non-fire lines.
fj Polyethylene,IPS 200 p.s.i.SLDR-7,PE3408
g) Polyethylene, PEX and PVC C-900 shall have a 14-gauge solid
copper tracer wire with a blue jacket. The tracer wire will start at the water main
and terminate at a weatherproof junction box. The junction box shall be accessible
and be labeled to identify junction box"tracer wire". The tracer wire shall then
continue from the junction box and terminate at the water meter. The wire shall run
from the main and be exposed at the curb box. The junction box shall be located
next to water meter remote on the exterior of the building or structure.
54) Section 604.2 UPC shall be deleted
55) Section 604.5 UPC shall be deleted
20
56) Section 604.6 UPC shall be deleted
57) Section 604.8 UPC shall be amended to change the words"plastic materials"in the
first sentence to"PEX,PVC C-900,and P.E."and to add the following to the end of the first sentence.
and meet the requirements of the National Electrical Code.
58) Section 605.2 UPC is amended to add the following to the end of the section:
Fullway valves shall be installed on both inlet and outlet sides of water heaters
when two or more water heaters are combined together.
59) Section 606.0 UPC is amended by adding new subsections 606.0.1 through 606.0.11
as follows:
606.0.1. Curb Stops shall be of the quarter turn ball valve type with the grip joint
ends.
606.0.2. The polyethylene to copper adaptor coupling,located at least two(2)feet
from the outside footing, shall be a Ford Meter Box Co. C26-44-G (1") or
equivalent.
606.0.3. All threaded taps on the main shall be at least 24 inches apart and shall be
at least 3/4 inch in size. If more than one tap is made for a service line,the taps will
be staggered on the pipe. No more than three(3)threaded taps shall be made for
a service connected to a 4-inch or larger main. Maximum threaded tap size for a
4 inch main is 3/4 inch. All taps will be made in the top half of the water main,but
not more than 45" above the horizontal plane. All services having two(2)taps or
more shall be combined through a brass wye pipe connection. The maximum length
of service from the main to the wye shall be four(4)feet. The following table lists
appropriate number of taps for different service sizes.
Service Size Tans
1 inch two 3/4 inch or one 1 inch
1'/4 inch two 1 inch
1'/2 inch two 1 inch
606.0.4. Service saddles allowed on four(4)inch or larger water mains when water
service is 3/4", 1", 1'/4",and 1'/z"shall be a Smith-Blair,or equivalent,#317,#357,
#372,#393 or#397. The saddles shall have a stainless steel strap with two bolts
wide minimum. The bolts or nuts shall be either stainless steel or blue coated.
When tapping a four(4)inch or larger main for water services for a two(2)
inch or larger water service,the Smith-Blair,or equivalent stainless steel full wrap
around saddle,#238,#239,#264,or#265 shall be used. The bolts and nuts shall
be either stainless steel or blue coated.
Any water service that is larger than a two(2)inch shall require a tapping
valve and sleeve at the main or private main.
The Post Indicator Valve (PIV) for fire line shall not serve as the water
service valve after the main.
All tapping valve sleeves shall meet the Urban Standard Specifications as follows:
1) Valve:Tapping valve conforming to ANSI/AWWA C509.
2) Sleeve:
a) Minimum 14 gauge
b) Stainless steel,ASTM A240,Type 304
c) Working pressure 200 psi.
d) Must fully surround pipe
e) Approved sleeves
(1) Cascade Water Works Manufacturing Company,Style CST-EX
(2) PowerSeal Pipeline Products Corporation,Model 3490AS
(3) JCM Industries,Inc.Model JCM 432
(4) Approved equal
3) Gasket:
a) To completely surround pipe
b) Minimum thickness 0.125 inch
c) Material:nitrile rubber.
4) Outlet Flange:
a) Stainless steel,ASTM A240,Type 304
b) ANSI B 16.1, 125 pound pattern
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5) Bolts: Stainless steel,ASTM A240,Type 304
Sec. 606.0.5. In the event a curb box is set in any location where a concrete or
asphalt surface is to be placed,a sleeve shall be placed around the cap to allow for
expansion and contraction.
Sec. 606.0.6. In a new subdivision the water service line shall be installed at the
center of the property unless otherwise approved by the Administrative Authority.
Sec.606.0.7. There shall be a curb cock in every service connection to the main.
It shall be located on the property line or as close as possible thereto and in alleys
within one foot of the alley line,except two(2)inch and larger,which shall have
a street valve box over the valve at the water main. The curb cock to be used for
services from three-fourths(3/4)inch to two(2)inches shall be the style known as
Mueller Mark II Oriseal or Ford Ball Valve with 90`curb cock,or equal,provided
with T handle and extension rod keyed and locked to curb cock and shall be the
same diameter as the pipe served. The curb cock shall be kept in an operative
condition at all times.
Sec.606.0.8. The curb cock shall be covered by a curb box of the Western pattern
No. 100,or equal,extending to the curb grade. In cases where the surface of the
ground is higher than the curb grade to the extent that the curb box will not extend
sufficiently to be in plain view,then the curb box shall be extended to the ground
surface.
Whenever a water service iewed the curb box shall ebrought s renpro property line. the
curb grade or present natural ground level and moved to the
placing the curb cock in position, care must be exercised to provide against
settlement of the curb box,by providing a base of brick,stone or concrete block set
on solid earth for support. A support shall be placed across the ditch and wired to
the curb box near the top to keep it in a vertical position while filling the ditch.
Sec. 606.0.9. A corporation cock of either a Mueller or Ford make, or its
equivalent, shall be inserted in every tap one inch or less in diameter made in the
water main. The connection to the main shall be made by a regulation corporation
P 340a8 dAllconnec o er service wtolthe water compression
main shall be adequately looped ttoo prevent
P3
breakage from ditch settlement.
Sec.606.0.10. A service valve shall be installed immediately following a two(2)
inch or larger tap on all take offs from the water main or private main.
Sec.606.0.1 L Where a single water service line provides service to a new duplex
or is split for any other reason,the service line shall be at least one inch in diameter.
Where an existing structure is to be converted to a duplex a V equivalent service
may be provided by a separate tap. The new service lines shall be divided by a wye
at the property line. Existing 1" services may be split inside the building so long
as shut-offs are available in a common area. Separate curb boxes shall be installed,
and separate'/4 inch service lines shall be run to the individual customer units.
Sec. 606.0.12. Sprinkler systems used for fire protection may be permitted to be
attached to the water mains by registered plumbing contractors by direct connection
without meters under the direction and supervision of the City. No open connection
can be incorporated in the system, and there shall be no valves except a post
indicator valve at the entrance to the building,which must be sealed open. One and
two family residential sprinkler lines shall be metered through the single meter. The
property owner or tenant shall promptly report to the City any seal which has been
broken for the closing of the system. A detailed drawing of the sprinkler system
shall be filed with the City and free access to the building shall be granted the
ity
for inspection purposes. No charge will be made for water used for fire purposes
through a sprinkler system. The fire line shall be a minimum four(4)inch diameter
with ashut-off valve installed after the tap into the main, the PIV shall be a
minimum of forty (40) feet from the building or at the determination of the fire
inspector. Exception: The fire line may be smaller than 4" in size if hydraulic
calculations by the fire sprinkler company show that a 4"would not be required.
If a 4" fire line is not required a Fire Department connection or P.I.V.may not be
required if determined by the fire inspector.
22
Sec.606.0.13. The post indicator valve(PIV)must be set at 36"above final grade.
The termination flange, inside the building, shall not be more than twelve (12)
inches above finished floor level and be set at a true vertical position. If the fire
line and water service are on one line,the water service shall have the take off prior
to the PIV. The take off for the water service shall be either brass,ductile iron,C-
900 PVC DR 14,or copper to the curb box. The fire line shall have a two hundred
(200)pound pressure test done for a minimum of two(2)hours without losing any
pressure. The fire line shall be tested from the tap at the main to the termination
flange with the PIV open and the curb box closed. No fire line static pressure test
shall be started after 1:30 p.m.,Monday through Friday.
A certified fire sprinkler installer may install the backflow device to the
sprinkler system for containment. The termination flange,inside the building,from
horizontal to the vertical position or from horizontal to the horizontal position
traveling through an exterior wall or floor, shall have no smaller than % inch
galvanized or equivalent all-thread rod used between said flanges to keep fire line
termination stable. The fire line located in the trench may use mega-lug type
supports, however, a concrete thrust block shall be in front of fire line traveling
from horizontal to vertical prior to the termination flange. Only PVC C-900 DR 14,
and ductile iron shall be used for the fire line service. The joints shall have bolted
flanged fittings. The tapping valve, PIV, and all other fittings and pipe shall be
marked to withstand 200 p.s.i. Before requesting a Bac-T test,the fire line shall be
flushed thoroughly by the plumbing contractor. The contractor shall request,from
the Inspection Division,a Bac-T test form,complete the form and return it to the
Inspection Division. Utility Maintenance Division will collect the sample for
testing. If the fire line passes Bac-T test,the Inspection Division will contact the
plumbing contractor. The termination flange shall have a two(2)inch ball valve
to properly flush the fire line.
(60) Section 606.2.1 UPC is amended to add the following to the end of the section:
Soft copper water service lines, except fire line, shall be either brazed, silver
soldered,or flared with a long shouldered joint. Whenever type"K"soft copper is
used for the water service,use of any joints is discouraged whenever possible.
(61) Section 606.2.2 UPC is deleted.
(62) The third paragraph of Section 608.3 UPC is amended to read as follows:
In addition to the required pressure or combination pressure and temperature relief
valve, an approved, listed thermal expansion tank or a listed thermal expansion
relief valve, or other device designed for intermittent operation for thermal
expansion control shall be installed whenever the building supply pressure is greater
than the required relief valve pressure setting or when any device is installed that
prevents pressure relief through the building supply. The tank or device shall be
sized in accordance with the manufacturer's recommendation.
(63) Section 608.5 UPC is amended to read as follows:
Temperature/pressure relief valves (T/P) shall be provided with a drain tube not
smaller than the T/P valve outlet. The drain tube shall be rigid copper(Type K,L,
M). The drain tube shall be piped to within five feet(5)of a floor drain when the
water heater or boiler is located on the lowest floor level. The floor drain shall be
located in the same room as the water heat or boiler. The outlet of the drain tube
shall be six(6)inches off the finished floor. No T/P shall discharge to the exterior
of a building. The drain tube shall have no threads or be trapped. The trip lever on
the T/P must be able to be manually opened completely without any obstacle to
restrict trip lever. When installing a T/P valve,the manufacturer's recommendation
shall be followed unless it violates this code. Any T/P drain tube installed for any
water heater or boiler shall not be elevated at any time above the discharge outlet
of the T/P valve. This section shall apply to new structures and existing structures.
(64) Section 608.7 UPC is deleted.
(65) Section 609.1 UPC is amended to delete the last two sentences in the section and insert
the following:
All water service lines shall be installed at least five feet below finish grade. If the
water service cannot be buried below frost depth at any point, the trench shall be
23
lined with 1 ''/2" thick"Blue Board" insulation or equivalent as approved by the
Administrative Authority. Sand backfill material shall then be placed to a depth of
one foot above the top of pipe, then 1 '/2" "Blue Board" or equivalent will be
installed so that the entire trench width and length in the area needing protection
against freezing is insulated and then backfilled. The insulation shall be at least five
(5)feet in depth.
(66) Section 609.2 UPC is deleted.
(67) Section 609.3.1 UPC is deleted.
(68) Section 609.3.2 UPC is deleted.
(69) Section 609.4 UPC is reworded to add the following to the end of the section:
The plumbing inspector does not have to be present for the test.
(70) Section 609.5 UPC is reworded to add the following to the end of the section:
Exception:water heaters and boilers.
(71) Section 609.9 UPC is deleted and replaced with the following:
Any water service two(2)inches and larger shall have a bacteriological test(Bac-T)
done prior to any water usage. Flushing the service and adding the chlorine shall
be done by the contractor. Utility Maintenance Division will collect a water sample
and have the sample tested. The contractor shall fill out a Bac-T request form and
give to Inspection Division prior to a sample being collected.
(72) Section 609.10 UPC is deleted.
(73) Table 6-5 UPC is amended to add the following footnotes at the bottom:
-The City of Ames has different pressure ranges for water pressure. See map in the
Inspection Division for location of pressure ranges.
-Change`Building supply,three-quarter(3/4)inch(20mm)normal size minimum."
To"Building supply one(1)inch nominal size minimum".
-Each building shall have a separate water tap from public main.
EXCEPTION:A secondary building with the same address may have one service
if one common water meter is installed and approved by the plumbing inspector
prior to the installation.
- Section 610.8 UPC notwithstanding, on existing water service line repair or
replacement shall be at least 3/4 inch in diameter. Water service lines for any
commercial property shall be at least one inch in diameter. It is important to note
that these are minimum diameters for service lines. Larger diameters may be
required to provide adequate service based on number of fixture units. All new
buildings shall have a minimum of a one(1)inch water service line.
-Only one(1)service is allowed per building or structure. Additional services may
be approved by the Plumbing and Mechanical Board.
EXCEPTION:A secondary building with the same address may have one service
if one common water meter is installed and approved by the plumbing inspector
prior to the installation.
(74) Table 6-6 UPC is deleted.
(75) Section 610.1 UPC is reworded by deleting the words"each water meter and"from
the first sentence,and by adding the following table to the end of the section:
Water Meter Sizing
Maximum Number of Normal Operating Meter Size*
Fixture Units as Flow Range in gallons Typical Residential
Determined form UPC per minute(gpm) and Commercial
Table 10-1 to Size Service Applications with
Lines and Meters Flush Tanks
29 / -20 5/8" or 5/8"x 1/4"
disc type
52 %-30 3/4"disc type
125 '/z-50 1"disc type
275 1 -80 1 '/z"disc type
*Meter sizing for other specialty applications(such as flushometer valves)or larger
24
meter sizes shall be determined by the Water Meter Division.
(76) Section 701.1 UPC is reworded to read as follows:
Drainage pipe and fittings used inside a new building or an existing building for
underground shall be copper(type L),brass,ABS(schedule 40),PVC(schedule 40)
and cast iron. Exception:Galvanized may be used on a sewage ejector system when
the discharge line is three(3)inch or larger. The galvanized shall only be piped no
more than four(4)feet out of pit.
Above ground piping shall be the same as underground except that copper
tube and fittings may be type M for commercial and structures that are more than
a one and two-family dwelling. A one and two-family dwelling may use type DWV
copper tube.
(77) Section 701.1.1 UPC is deleted.
(78) Section 701.1.2 UPC is reworded to read as follows:
Except for individual single-family dwelling units, ABS and PVC shall not be
exposed within ducts or plenums(that are not conditioned)unless pipe is insulated
with an insulation that has a flame-spread index of not more than 25 and a smoke-
developed index of not more than 50.
(79) Section 701.1.3 UPC is deleted.
(80) Section 701.1.4 UPC is deleted.
(81) Section 703.1 UPC is reworded to add the following at the end of the section:
No underground drainage piping or vent shall be less than two (2) inches inside
diameter.
(82) Table 7-3 UPC is amended to add the following to footnote#8:
Public use shall be any building or structure that is not a dwelling unit. Fraternities
and sororities are not classified by this section as a dwelling unit.
(83) Section 704.3 UPC is reworded to delete the following from the second sentence:
"Commercial dishwashing machine"
(84) Section 704.3 UPC is reworded to add the following to the end of the section:
A commercial dishwashing machine shall be discharged by an airgap indirect waste
to a properly sized floor sink.
(85) Section 704.4.1 UPC is reworded to delete the following:
"galvanized malleable iron"
(86) Section 705.1.2 UPC is deleted.
(87) Section 705.1.4 UPC is deleted.
(88) Section 705.1.6 UPC is reworded to read as follows:
No molded rubber coupling(Fernco Coupling or equivalent)shall be used on any
sanitary sewer or storm sewer. A stainless steel shielded molded rubber coupling
may be used when connecting to clay pipe or PVC truss pipe on the sanitary or
storm sewer.
(89) Section 705.1.8 UPC is reworded to add the following to the end of the section:
Shielded couplings(no hub clamps)are not allowed on any exterior building sanitary sewer,or storm
sewer.
(90) Section 705.1.9 UPC is deleted.
(91) Section 705.2.1 UPC is deleted.
(92) Section 705.2.2 UPC is reworded to read as follows:
Joints in cast iron soil pipe shall be made as provided in sections 316.1.5,705.1.1
and 705.1.8(only used in interior of a building).
(93) Section 705.2.4 UPC is reworded to delete the following words:
"wrought iron or steel pipe"
(94) Section 706.3 UPC is reworded to read as follows:
Horizontal drainage lines connecting with other horizontal drainage lines shall enter
through forty-five(45)degree(0.79 rad)wye branches,combination wye and one-
eighth(1/8)bend branches,or forty-five(45)degree elbows and ninety(90)degree
long sweep elbow fittings.
(95) Section 707.1 UPC is reworded to delete the following words:
"galvanized wrought iron,galvanized steel"
(96) Section 707.4 UPC is reworded to read as follows:
Each horizontal drainage pipe that serves a three(3)inch or larger stack shall be
provided with a cleanout at its base(at least six(6)inches from finished floor level,
25
and no higher than forty-two (42) inches from floor). Each run of piping that
exceeds one hundred (100) feet in developed length shall be provided with a
cleanout. An entrance cleanout from the building drain to the building sewer is
required. No cleanout shall be dead-ended or terminated on the vertical without
venting said cleanout. The vent shall be one-half('/2)the diameter of said cleanout.
(97) Section 707.9 UPC is reworded to read as follows:
Each cleanout located below grade shall not create a tripping hazard. Cleanouts
located below grade shall be installed as to provide the clearances and accessibility
required by this chapter.
(98) Section 710.1 UPC is reworded to add the following to the end of the first sentence:
"manually operated f illway gate and ball valve"
(99) Section 710.9 UPC is reworded to add the following to the end of the section:
Exception:When only discharging a lavatory sink,a general sink,or a floor drain
into a sewage ejector receiving tank,dual pumps in public use occupancy will not
be required.
(100) The second sentence of Section 7 10.10 UPC is reworded to read as follows:
The top shall be provided with a vent pipe,which shall extend separately through
the roof,or shall be combined with other vent pipes on the next upper floor level.
(101) Section 711.0 UPC is reworded to add the following after the first paragraph and
before the exceptions:
A clothes washer shall not be allowed to horizontally wet vent any plumbing fixture.
A floor drain shall be at least eight (8) feet horizontally away from any vertical
stack. A water closet shall be located a minimum of five(5)feet from any vertical
stack.
(102) Section 712.0 UPC is reworded to add the following:
It shall not be required for the Inspection Division to witness the water or air test,
but will require a visual inspection of piping installation by the Inspection Division
prior to covering or concealing.
(103) Section 714.2 UPC is reworded to read as follows:
All openings into the sanitary sewer piping must be securely sealed at all times by
means of a manufactured plug or seal until the building sewer has been made
completely tight against the elements of weather and all backfilling around
foundations has been brought to proper grade to insure the drainage of surface water
away from the building.
All work will be done in a "dry ditch". The generally accepted
understanding of a"dry ditch"is a work area without standing water and without
flowing mud. If necessary,the plumber shall over-excavate,furnish and place 1"
or smaller concrete stone and provide necessary pumping equipment to maintain dry
working conditions. Under no condition shall the plumber discharge surface or
groundwater to the sanitary sewer system or do any work in standing water unless
on-site authorization is given by the Inspector.
(104) Section 715.1 UPC is reworded to read as follows:
The building sewer,beginning two(2)feet from any building or structure,shall be
made of the following pipe and fittings:
4" Cast iron, SDR 23.5 PVC (with gaskets), copper (Type"L"), schedule 40
ABS and PVC
6" Extra strength clay pipe, cast iron,PVC SDR 23.5 (with gaskets), copper
(Type"L"),schedule 40 ABS and PVC.
8" PVC truss pipe, extra strength clay pipe, cast iron SDR 35 PVC (with
gaskets),copper(Type"L"),SDR 23.5 PVC(with gaskets),schedule 40 ABS
and PVC.
Note:If SDR 23.5 PVC or Schedule 40 PVC 4"through 6"is used for storm water,
when terminating into lot or right-of-way,the last two feet of pipe shall be painted
brown on top of the pipe. All sanitary sewer lines when terminated into lot or right-
of-way,shall have at minimum a 2"x 4"board from the bottom of the pipe's invert
to at least two feet above ground with a tape(3"minimum in width)strapped to the
2x4 from the base of the 2x4 to the top. The tape shall be green in color with white
lettering marked"sewer".
Note:Other material may be used if first approved by the Plumbing and Mechanical
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Board before installation.
(105) Section 715.2 UPC is reworded to read as follows:
On new buildings,the building sewer shall be connected to the public sewer main
with a factory wye.
This section deals with construction and inspection for installing sanitary
sewer service lines where a factory wye or factory wye and riser do not exist. In
this situation, the stub-in will begin with a tap into the sewer main as described
below. The tap may be made only in the public right-of-way or in a public
easement.
The service line connection shall be made with a cast iron saddle tee such as
Genoco Sealtite Model #DSBF sewer saddle or approved equal specifically
designed for this purpose. The spigot end shall fit smoothly into the wall of the
sewer main and shall not protrude more than'/4 inch past the inside pipe surface.
The saddle flange or collar shall be secured in place by a stainless steel strap of at
least 28 gauge and at least 2 'h inches in width. The saddle for PVC pipe shall be
as manufactured for the type of PVC pipe being used.
All sanitary sewer taps shall be made in the top half of the main but no more
than 45°above the horizontal plane. All taps shall be made at least 18 inches apart,
at least 24 inches away from any joint.
On existing public sanitary sewer mains,a six(6)inch building sewer may
be either connected to sanitary sewer main or maybe connected to an eight(8)inch
or larger main with a factory wye,using stainless steel water main clamps on the
main. An eight(8)inch or larger building sewer must be connected to a manhole,
or create a manhole that would meet Des Moines Urban Standards every three
hundred (300) feet. Every private sewer eight (8) inches or larger requires a
manhole. When connecting a building sewer to an existing public manhole,there
are two options of connecting the sewer to the manhole allowed by the Engineering
Division of the Public Works Department. See two illustrations below. The
property owner shall retain full responsibility for operation,repair,replacement,and
protection of any delivery system to the sewer main.
See Illustration in Sec. 21.701(4)
Note: A four inch building sanitary sewer may discharge into a public sanitary
sewer manhole with approval from the City Engineer prior to doing work.
(106) Section 717.0 UPC is reworded to read as follows:
The minimum size of any building sewer shall be determined on the basis of the
total number of fixture units drained by such sewer,in accordance with Table 7-8.
No building sewer shall be smaller than four(4)inches. The building sewer shall
not be smaller than the building drain.
In unusual circumstances,with prior approval from the plumbing inspector,
a sewage ejector may discharge the building sewer to the public sewer manhole
when the public main is too shallow to allow the building sewer discharge to flow
by gravity. The pipe material to be used shall be Polyethylene(P.E.)Two(2)inch
SDR 7,3408. The 2"line shall at all times be a minimum of five(5)feet deep or
be blue-boarded. The sewage ejector shall be vented with a minimum two(2)inch
pipe. The ejector pumps shall comply with section 710.9.
(107) Section 718.2 UPC is reworded to read as follows:
Building sewer pipe made of cast iron,copper,or extra strength vitrified clay shall
be laid on a firm bed. Pipe consisting of Schedule 40 PVC/ABS, PVC SDR
23.5/35 and PVC truss pipe shall be enveloped on bottom, sides and top with a
minimum of four(4)inches of either one(1)inch clean or 3/8"minus crushed rock,
3/8"washed chip or"pea gravel'. After enveloping the pipe,the remainder of the
ditch may be filled once the inspection is complete.
(108) Section 718.3 UPC is reworded to read as follows:
No building drain or sewer shall be closer than two (2) feet from the building
structure or footing that is not made out of cast iron,Schedule 40 PVC,or Type"L"
copper. At no point shall the building sewer be less than five(5)feet in depth on
new construction or when replacing existing sewers. If less than five (5) feet in
depth, the trench shall be lined with 1 '/2" thick blue-board insulation. The
insulation of the sides shall be at least five(5)feet below finished grade with a cap
27
over the two sides. One (1) inch clean 3/8" minus, 3/8" washed chips, and pea
gravel rock shall be placed on the bottom,sides and top of pipe whenever any type
of PVC is used. Whenever cast iron is used sand may take the place of the one(1)
inch rock.Whenever possible,the building sewer shall be at a depth of nine(9)feet
below street grade from the main to the property line on new construction.
Whenever possible on a duplex or single-family dwelling,the building sewer shall
not be located under a driveway.
(109) Section 719.2 UPC is deleted.
(110) Section 719.5 UPC is deleted.
(111) Section 719.6 UPC is amended by deleting the second paragraph.
(112) Section 720.0 UPC is deleted.
(113) Section 722.1 UPC is reworded to read as follows:
Whenever a structure or building is to be demolished,before demolition begins the
following must be completed:
1) Building sewer capped at curb line with a manufactured plug.
2) Foundation line capped at curb line with a manufactured plug.
3) Water service capped or plugged at main.
4) Plumbing inspector sign-off on demolition sheet given to contractor
before demolition permit is issued.
5) However,when the forgoing would entail cutting concrete or asphalt
paving that is less than five years old,the Director of Public Works may required,
as an alternative to the forgoing,that the owner of the property served by the water
service line make a cash deposit or provide a letter of credit, for a period not to
exceed five years, to secure for the City the cost of performing the said work at
some time in the future.
(114) Section 722.2 UPC is reworded to add the following to the end of the section:
The County or designee is the Administrative Authority for inspection and
determination of compliance.
(115) Table 7-7 UPC is amended to delete the reference to Note#5 after Public water main
and to reword Note#6 as follows:
For crossings, approval by the Engineering Division of the Public Works
Department shall be required.
(116) Section 722.5 UPC is reworded to add the following to the end of the section:
Whenever two(2)or more lots are turned into one lot,the building sewer,water
service and foundation drain line for lot(s)not to be used shall be abandoned to
meet section 722.1 of this code.
(117) Amend the UPC by adding 722.6 and 722.7 as follows:
722.6. Whenever a water service,building sewer,storm sewer,or foundation drain
is abandoned or required by the plumbing regulations to be abandoned, the
following procedure shall be adhered to:
a) The water service shall be disconnected at the corporation stop on the
main. The corporation shall be either capped or plugged with a manufacture fitting.
b) The building sewer, storm sewer, and foundation drain shall be
disconnected at the street curb with a manufactured plug.
That work shall be done prior to a demolition permit being issued by the Inspection
Division.
722.7. Whenever a water service has been inactive or unused for six months or
more,the City may require that the water service,building sewer,storm sewer and
foundation drain services be permanently abandoned as stated in subsection 722.6
above, within thirty days after notification by the plumbing inspector. This
subsection pertains only to buildings that are not being demolished or receiving any
new services.
(118) Section 723.0 UPC is deleted.
(119) Section 801.2.2 is reworded to read:
All drain lines that are provided for walk-in freezers,walk-in coolers,refrigerated
storerooms,or other locations where refrigerated beverages are stored,shall have
all drain lines indirect wasted to a floor drain or floor sink located outside the room
or unit. No floor drains are allowed inside a refrigerated room where food or
beverage is stored.
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(120) Section 801.3 UPC is reworded to read as follows:
Sinks in a bar,nightclub,tavern, or soda fountain shall drain to an approved and
properly sized floor sink with an approved air gap of at least one(1)inch. The floor
sink shall be properly vented. The drainline,trap,and strainer inlet shall be at least
three(3)inches in size.
(121) The second paragraph of Section 803.0 UPC is reworded to read as follows:
Indirect waste pipes less than fifteen(15)feet in length shall not be less than the
diameter of the drain outlet or tailpiece of the fixture, appliance, or equipment
served,and in no case less than one-half('/2) inch in size.
(122) Section 807.4 UPC is reworded to read as follows:
No domestic dishwashing machine shall be directly connected to a drainage system
or food waste disposer without the use of an approved dishwasher air gap fitting on
the discharge side of the dishwashing machine,or by looping the discharge line of
the dishwasher as high as possible near the flood level of the kitchen sink where the
waste disposer is connected, and will be supported or strapped. Listed air gap
fittings shall be installed with the flood level(FL)marking at or above the flood
level of the sink or drainboard,whichever is higher.
(123) Section 811.1 UPC is amended to replace "Authority Having Jurisdiction" with
"Director of Water and Pollution Control and the plumbing inspector."
(124) Section 811.2 UPC is rewarded to read as follows:
Each water pipe receiving or intended to receive the discharge of any fixture into
which acid or corrosive chemical is placed and each vent pipe connected thereto,
shall be constructed of chemical resistant glass, high silicon iron pipe, fuse seal
pipe,or lead pipe not less than one-eighth(1/8)inch(3.2 nun)wall thickness,an
approved type of ceramic glazed or unglazed vitrified clay, or other approved
corrosion resistant materials. All continuous wastes,basket strainers, tailpieces,
traps and other fittings/materials shall be of like material as contained in this
section.
(125) Section 815.0 of the UPS is deleted.
(126) Section 901.0 UPC is rewarded to add the following to the end of the section:
"or by the requirements of section L.6.0 of appendix"U. A two(2) inch future
vent shall be terminated with other vents or terminate through the roof. Such vent
shall be capped in the floor joist area for future use. The two(2)inch vent is for a
future basement bathroom or other approved fixtures.
See Illustration in Sec.21.701(2).
(127) Section 902.2 UPC is reworded to read as follows:
Sinks which are part of the equipment of bars, soda fountains, and counters shall
discharge by means of an approved indirect waste pipe(s)with at least a one (1)
inch airgap into a properly sized floor sink. Floor sinks shall have a minimum three
(3)inch trap and trap arm. The floor sink shall be properly vented.
(128) Section 903.1 UPC is reworded to read as follows:
Drainage pipe and fitting used inside a new building or an existing building for
underground shall be copper(Type L),brass,ABS(Schedule 40),PVC(Schedule
40)and cast iron.
Exception:Galvanized may be used on a sewage ej ector system when the discharge
line is three(3)inch or larger. The galvanized shall only be piped no more than
four(4)feet out of pit.
Above ground piping shall be the same as underground except that copper
tube and fittings may be Type M for commercial and structures that are more than
a one and two-family dwelling. A one and two-family dwelling may use type DWV
copper tube.
(129) Section 903.1.1 UPC is deleted.
(130) Section 903.1.2 UPC is reworded to read as follows:
Except for individual single-family dwelling units, ABS and PVC shall not be
exposed within ducts or plenums(that are not conditioned)unless pipe is insulated
with an insulation that has a flame-spread index of not more than 25 and a smoke-
developed index of not more than 50. A 2" future vent shall be terminated with
other vents or terminate through the roof. Such vent shall be capped in the floor
joist area for future use.
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(131) Section 903.2.1 UPC is reworded to read as follows:
Drainage pipe and fittings used inside a new building or an existing building for
underground shall be copper(Type L),brass,ABS(Schedule 40),PVC(Schedule
40)and cast iron.
Exception:Galvanized maybe used on a sewage ejector system when the discharge
line is three(3)inch or larger. The galvanized shall only be piped no more than
four(4)feet out of pit.
Above ground piping shall be the same as underground except that copper
tube and fittings may be Type M for commercial and structures that are more than
a one and two-family dwelling. A one and two-family dwelling may use type DW V
copper tube.
(132) Section 903.2.2 UPC is reworded to read as follows:
Drainage pipe and fittings used inside a new building or an existing building for
underground shall be copper(Type L),brass,ABS(Schedule 40),PVC(Schedule
40)and cast iron.
Exception:Galvanized maybe used on a sewage ejector system when the discharge
line is three(3)inch or larger. The galvanized shall only be piped no more than
four(4)feet out of pit.
Above ground piping shall be the same as underground except that copper
tube and fittings may be Type M for commercial and structures that are more than
a one and two-family dwelling. A one and two-family dwelling may use type DWV
copper tube.
(133) Section 903.3 UPC is reworded to read as follows:
Vent fittings shall be cast iron,copper(Type L),brass,ABS and PVC schedule 40
DWV.
(134) Section 904.1 UPC is reworded to read as follows:
The size of vent piping shall be determined from its length and the total number of
fixture units connected thereto, as set forth in Table 7-5. The diameter of an
individual vent above ground shall not be less than one and one-fourth(1 '/4)inches,
less than two(2)inches for underground,nor less than one-half('/2)the diameter of
the drain to which it is connected.
Exception:A watercloset shall be vented with a vent no smaller than a two(2)inch
inside diameter pipe.
Each individual building or structure shall have a main vent stack equal in
size or larger than the required building sewer. The main vent stack shall extend
through the roof a minimum of twelve inches undiminished in size from the
underground building drain.
Exception:In single-family,duplexes,apartment,motel and hotel buildings four(4)
stories or less,a three(3)inch main stack vent is permitted,as long as other vents
through the roof equal the cross-sectional diameter of the required building sewer.
(135) Section 905.1 UPC is reworded to read as follows
All vent and branch vent pipes shall be free from drops or sags and each such vent
shall be graded and connected to drip back by gravity to the drainage pipe it serves.
(136) Section 905.4 UPC is reworded to read as follows:
All vent pipes shall meet the requirements of sections 904.1, 905.1,906.3,Table
7-5,and other sections of this code.
(137) Section 905.5 UPC is reworded to read as follows:
The vent pipe opening from a soil or waste, except for water closets and bedpan
washers,shall not be below the weir of the trap.
(138) Section 906.1 UPC is reworded to read as follows:
Each vent pipe or stack shall extend through its flashing and shall terminate
vertically not less than twelve(12)inches above the roof nor less than one(1)foot
from any vertical surface.
(139) The first sentence of Section 906.3 UPC is reworded to change six(6)inches to twelve
(12)inches and remove reference to nun.
(140) Section 906.7 UPC is reworded to change two(2)inches to three(3)inches and ten
(10)inches to twelve(12)inches and remove reference to mm.
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(141) Section 909.0.1 is added to read as follows:
Special venting for island fixtures may also be vented with the foot vent connected
to the drain line with a wye-branch or sanitary tee on the vertical stack. The foot
vent shall be located above the wye or tee fitting. The foot vent shall have the
direction flowing downwards toward the base of the stack. There shall be an
exposed cleanout installed on the foot vent inside cabinet area. The foot vent shall
be graded a(1/4)inch per foot towards the stack wye-branch or sanitary tee.
See Illustration in Sec.21.701(l).
(142) Section 909.0.2 is added to read as follows:
As an alternative for single family dwellings, an"air admittance valve" may be
installed as follows:
1) The air admittance valve shall be two(2)inches in size and have the
ANSI/ASSE 1051 listing label clearly visible during inspection.
2) The stack or horizontal branch shall have a 1 '/2"vent. The two(2)
inch waste line shall be a designated line with no other connections of any sort.
3) The air admittance valve shall be readily accessible in the cabinet
area,be removable,and located at least six(6)inches above the 2 x 2 x 1 '/2"tee for
the trap.
Note: See illustration.
Venting for kitchen or bar island sinks only, may be auto vented. The auto vent shall be
readily accessible and shall be located above the trap arm and in same cabinet as"P"trap.
(143) Section 1002.4 UPC is reworded to read as follows:
The vent pipe opening from a soil or waste pipe, except for water closets and
bedpan washers,shall not be below the weir of the trap.
(144) Table 10-1 UPC is amended to read as follows:
Trap Arm Distance Trap to Vent
Inches Feet Inches
1-1/4 5 0
1-1/2 6 0
2 8 0
3 12 0
4 and larger 12 0
The developed length between the trap of a water closet or bedpan washer and its
vent shall not exceed six feet.
(145) Section 1003.1UPC is amended to delete"PP".
(146) Section 1003.3 UPC is reworded to add the following to the end of the section:
Exception: The trap for a lavatory and drinking fountain may be one pipe size
smaller than the trap arm.
(147) Section 1005.0 UPC is reworded to add the following to the end of the section:
In new construction or remodeling,no fixture trap shall be located in an unheated
crawlspace, or in an exterior wall. A Fixture trap shall not be located in a floor-
ceiling assembly above a parking garage where the garage area is open to the
outdoors.
(148) Section 1008.0 UPC is deleted.
(149) Section 1009.1 UPC is reworded to add the following to the end of the section:
(1) Every restaurant or other commercial or institutional establishment
where food is cooked shall have either grease traps or grease interceptors. With
respect to dishwashing arrangements in a non-domestic setting,if there is to be a
pre-rinse sink and a garbage disposal, it shall be done only by means of a two
compartment sink with one compartment for the pre-rinse and the other
compartment for the garbage disposal. The pre-rinse compartment shall be drained
into a grease trap. The compartment for the disposal shall be discharged directly
into a drain line,isolated from the grease trap.
(2) Only approved oil/sand interceptors shall be used as shown on
Illustration in Sec.21.701(5).
(3) Every three or four compartment sink with a grease trap shall be piped
as shown on Illustration 2A and 2B in Sec.21.701(5).
Alternatively, all compartments shall go into a grease trap. A floor drain
shall precede the grease trap and no other fixtures shall be allowed between the
31
floor drain and the grease trap.
(4) All establishments where hair is cut or styled shall have a hair
interceptor installed in those sinks where hair is washed.
(150) Section 1009.4 UPC is reworded to add the following to the end of the section:
Exception:A relief vent for a sand interceptor is recommended but not required if
branch for sand interceptor is not more than twelve (12) feet from the building
drain.
(151) Section 1014.8 UPC is reworded to add the following to the end of the section:
When in the judgment of the plumbing inspector, a grease interceptor may be
required for each restaurant or food establishment. It shall be allowed to discharge
all the kitchen fixtures to the interceptor, except water closets and urinals. An
effluent sampling box may be required on the discharge side of the grease
interceptor. This section does not apply to a grease trap. The grease interceptor
shall be located on the exterior of the building.
(152) Section 1016.1.2 UPC is reworded to read as follows:
Sand interceptors shall be required whenever a floor drain(s)is located in the same
room or area of an overhead door or door where any type of equipment or vehicle
can enter the building. This shall also apply to loading docks and ramps.
Exception: Whenever the above mentioned applies and the only floor drain is
located at the water meter area, a 3 '/2" concrete threshold may be constructed
around the water meter and floor drain to isolate the drain from the remaining areas.
See Illustration in Sec.21.701(6).
(153) A new Section 1017.3 is added after Section 1017.2 UPC as follows:
A combination oil and sand interceptor may be designed by (1) a registered
engineer; (2) according to Section 1017.1 and 1017.2; or(3) local requirements.
The interceptor shall be a minimum four(4)feet in width,four(4)feet in height,
and five(5)feet in length. There will be a four(4)inch cast iron trap inlet,a four
(4)inch cast iron outlet quarter bend that is thirty(30)inches from the bottom with
a four(4) inch cast iron cleanout. There shall be a minimum of a two (2) inch
vertical distance from bottom of invert to the top of the outvert. There shall be a
four(4)inch cast iron vent installed from top of the interceptor to the exterior of
building through the roof. The vent shall be independent of any other vent(s). The
interceptor shall be explosion proof with a bolted access cover with gaskets.
See Illustration in Sec.21.701(7).
(154) Section 1101.1 UPC is reworded to read as follows:
All paved areas,yards,roof drains and courts shall be drained to the public storm
sewer or public storm intake. Paved areas may be allowed to discharge to other
areas of disposal at the discretion of the Building Official.
No primary roof drainage water from a building shall be permitted to be
discharged or flow over any public property or sidewalks. For the purpose of this
section,Public shall be defined as anything other than a single-family dwelling.
(155) Section 1101.2 UPC is reworded to read as follows:
Whenever such connection or arrangement is found to exist in violation of the
ordinances of this city and Chapter 21, whereby surface water runoff, subsoil or
footing drainage is discharged or diverted into the sanitary sewer system, the
inspector shall issue a written notice to the owner to cause such to be abated by
ordering a connection to a public storm main or collector line.
(156) Section 1101.3 UPC is reworded to read as follows:
Rainwater piping placed within the interior of a building to two (2) feet out of
building or footings shall be cast iron,brass,copper(Type M),Schedule 40 PVC
or ABS DW V. Schedule 40 PVC and ABS pipe installed within a duct or plenums
shall be insulated with an insulation having a flame-spread index of not more than
25 and a smoke index of not more than 50.
Rainwater piping placed outside a building shall be cast iron,brass,copper
(Type M), Schedule 40 PVC or ABS DWV, reinforced concrete pipe (RCP),
vitrified clay pipe (VCP), SDR 23.5 PVC, SDR 35 PVC, PVC truss pipe, PVC
A2000 pipe,and corrugated high-density polyethylene(P.E.)
SDR 23.5 PVC,SDR 35 PVC,schedule 40 PVC or ABS,PVC truss,PVC
A2000,and corrugated polyethylene pipe outside a building shall be enveloped with
32
four(4)inches of crushed rock,either one(1)inch clean or 3/8"minus 3/8"washed
chips,or"pea gravel",on the top,bottom and sides. The storm water sewer may
be connected to the City storm main at intakes,manholes,or connected directly into
the storm main. Whenever a direct connection is made to the storm main, the
connection shall be made by a clamping saddle or a fitting with a sealant that makes
the joints water and root proof.
If the storm sewer is one-half('/2)or more of the size of the storm main,a
manhole shall be required at the point of connection to the storm main. All
manholes shall meet the Des Moines Urban Standards.
All direct taps into the storm main shall be installed on the top one-half('/Z)
of the main. The storm sewer shall have a cleanout installed every one hundred
(100) feet and every change of direction exceeding 135°. In place of a cleanout
every one hundred(100)feet,a manhole shall be placed every three hundred(300)
feet(manhole shall meet Des Moines Urban Standards). No Fernco coupling or no-
hub clamp shall be used on the storm sewer or main.
Exception:When converting to PVC truss pipe or clay pipe,a Fernco stainless steel
shielded coupling shall be used on storm sewer.
(157) Section 1101.4 UPC shall be reworded to add the following to the end of the section:
Expansion joints above ground shall be provided every thirty (30) feet on the
vertical or horizontal piping. The expansion joint shall consist of two(2)forty-five
(45)degree elbow offsets located twenty-four(24)inches apart.
(158) The second sentence of Section 1101.5.1 UPC 3"inches shall be changed to 4 inches,
and the section shall be reworded to add the following to the end of the section:
A non-licensed plumber may install the perimeter drain. When the footings are
ready for inspection,the Building Inspector may inspect the perimeter tile.
(159) Section 1101.5.2 UPC is reworded to read as follows:
The subsoil drains may be allowed to discharge to a pond,or waterway if approved
by the Building Official. If not allowed by the Building Official,the subsoil drain
shall be discharged to a storm main. Regardless, the gravity line shall have a
backwater valve.
In existing buildings, if granted permission by the plumbing inspector,the
perimeter tile may flow by gravity to a storm main,intake,or manhole if there is at
least ten(10)feet vertical height difference between the perimeter tile and the storm
main,intake,or manhole.
The correct saddle to use to connect to a 6"- 15"the line is a Gemco sewer
saddle(B.F.O.).
The correct saddle for a collector line of 6" plastic is a Smith Blair 313-
00066-314000 6"x 2" saddle.
To connect a storm line to a concrete pipe,use a 1/8 bend cast iron elbow
with cast iron hub. The pipe will extend from the hub to the face of the pipe.
Cement mortar and oakum will be used for a water and root-proof connection to the
storm sewer.
(160) Section 1101.5.3 UPC is reworded to replace"fifteen(15)gpm"with"17 gpm with
a seventeen(17)foot head"and also to add the following to the end of the section:
The sump pump line may be either Schedule 40 PVC or Schedule 80 PVC pipe.
The fittings shall be either schedule 80 PVC deep socket or schedule 40 deep socket
pressure fittings. The sump pump line may also be 1 ''/2"polyethylene(PE)SDR 9,
3408. The PE joints shall be made with ribbed insert fittings secured by stainless
steel clamps.
The sump line shall be buried no less than five(5)feet in depth from finished
grade. If this depth cannot be maintained,the sides and top of pipe wall shall be
covered with 1 '/2"blue board insulation. The sides of the insulation shall be at least
five(5)feet in depth.
When the sump line is discharged into a storm manhole, intake, or storm
main that is not five(5)feet below final surface grade,a quarter('/4)of an inch hole
shall be drilled into the bottom portion of the horizontal 90°e1bow before pipe is
placed in the vertical position.
Note:If a storm sewer or collector line does not exist in the roadway fronting
the property,the discharge line shall be terininated at the back of the curb. In the
33
event the storm sewer/collector line is on the opposite side of the pavement, the
discharge line shall be extended across the street. Back-of-curb discharges shall be
directed downward to the pavement by use of an elbow or other approved
arrangement. The City of Ames shall be responsible for the connection to the storm
sewer/collector line for those services properly terminated at back-of-curb. See
Illustration in Sec.21.701(3).
If two sump lines are combined together,the sump line shall be a two(2)
inch line to the storm main,intake,or manhole.
The sump pump shall have an electrical outlet within reach of the
manufacturer's cord.
No foundation drain service line shall be discharged onto property,someone
else's property,or into the building drain or building sewer. A floor drain,clothes
washer,or any other plumbing fixture shall not be discharged into the foundation
sump pit.
Every sump pit in an elevator shaft shall meet the rules and regulations of the
State of Iowa Elevator Inspector. No hydraulic elevator shall be discharged into a
storm or sanitary sewer.
(161) Section 1101.5.4 UPC is deleted.
(162) Section 1101.5.5 UPC is reworded to read as follows:
A check valve shall be provided in the discharge line,whether the discharge line
flows by gravity or is pumped. The check valve may be installed in either a vertical
or horizontal position. This check valve shall be in addition to any check valve
built into the sump pump.
(163) The first sentence of Section 1101.11.2.1 UPC is reworded to read as follows:
On flat roofs of buildings, an independent secondary roof drainage system
consisting of scuppers or roof drains shall be provided, if the building has any
parapet(s).
(164) Section 1101.11.2.2 UPC is reworded to delete the words"stand pipes".
(165) Section 1101.11.3 UPC is deleted.
(166) Section 1101.13 UPC is deleted.
(167) Section 1102.1.1 UPC is deleted.
(168) Section 1102.1.2 UPC is deleted.
(169) Section 1102.3 UPC is deleted.
(170) Section 1102.4 UPC is deleted.
(171) Section 1108.0 UPC is deleted.
(172) Section 1109.1 UPC is reworded to add the following to the end of the section:
Inspection Division shall not be required to be present for water or air test,
however,the Inspection Division shall do a visual inspection of the installation prior
to the plumber concealing or covering any said piping..
(173) Tables 11-1,11-2,and 11-3 UPC are amended by adding the following note to the end
of each table:
Rainfall rates for the City of Ames shall be based at three and one-half(3'/2)inches
of rain per hour.
(174) Section 1209.4 is reworded to state:
No gas line from the gas meter to the furnace room shall be less than one(1)inch
in size.
Exception:Apartment buildings that have individual gas meters to each unit and gas
pressure is a minimum of two(2)psi,may have a minimum one-half('/2)inch gas
line from gas meter to furnace room if required BTU's meet this code.
(175) Section 1209.5 is reworded to state:
Only fittings approved for welded joints shall be used. Screw type fittings may be
used in concealed spaces,except for unions,bushings and shutoff valves.
(176) Section 1209.5.1.1 is reworded to state:
No corrugated stainless steel tubing(csst)shall be installed outside of a building or
installed below ground in a building. Csst shall be installed by manufacturer's
recommendations unless it violates this code. No appliance connector shall
penetrate the housing of an appliance,or be used in an exterior location.
Material allowed six(6)inches or higher above lowest finished floor shall be:
34
(6)standard weight wrought iron or steel
(7)black iron or steel
(8)corrugated stainless steel(csst)
(177) Section 1209.5.3.3 is reworded to add to the end of the section the following:
No appliance connector shall penetrate the housing of an appliance,or be used in
an exterior location.
(178) Section 1209.5.3.4 is reworded to add to the end of the section the following:
No corrugated stainless steel tubing(csst)shall be installed outside of a building or
installed below ground in a building. Csst shall be installed by manufacturer's
recommendations unless it violates this code.
(179) Section 1209.5.8.4(1)is reworded to read as follows:
Metal gas pipe or fittings over two(2)inches in size shall be welded.
(180) Section 1209.5.8.4(5)d is reworded to read as follows:
Metal gas pipe or fittings over two(2)inches in size shall be welded.
(181) Section 1209.7.5(a)(1)is reworded to delete the Exception and add the following to
the end of the subsection:
If a privately owned gas regulator is installed on the interior of a building, the
regulator shall be vented to the exterior of the building with either soft copper
tubing (if allowed by manufacturer of regulator) or with black iron pipe. The
plumbing inspector may make an exception on certain type buildings with overhead
doors. The state boiler inspector does not allow copper.
(182) Section 1211.0 is reworded to add the following to the end of the section:
Only fittings approved for welded j oints shall be used. Screw type fittings shall not
be used. Screw type fittings may be used in concealed spaces,except for unions,
bushings and shutoff valves.
(183) Section 1211.1 is reworded to add the following to the end of the section:
No corrugated stainless steel tubing(csst)shall be installed outside of a building or
installed below ground in a building. Csst shall be installed by manufacturer's
recommendations unless it violates this code. No appliance connector shall
penetrate the housing of an appliance,or be used in an exterior location.
Material allowed six(6)inches or higher above lowest finished floor shall be:
(6)standard weight wrought iron or steel
(7)black iron or steel
(8)corrugated stainless steel(csst)
Material allowed outside a building below ground shall be:
(1)Polyethylene(PE)with a transition gas riser. (Installer must meet serving
gas supplier qualifications in order to install.)
(2) Standard weight wrought iron or steel (black or galvanized) that has
welded j oints. The pipe and fittings shall have a machine applied yellow polyolefin
coating or a fusion bonded epoxy coating.
(184) Section 1211.6.1 is reworded to read:
All gas appliances located on the lowest level and served by a gas meter shall have
a minimum of a three inch(Y)drip leg located at appliance.
(185) Section 1211.9.3 is reworded to add the following to the end of the section:
If a building has any fume hood(s)or gas turrets,there shall be a gas valve
located at each exit from the room. The gas piping to each hood shall be arranged
in such a manner that when the valve(s)is shut off,gas flow to the fume hood(s)is
discontinued. The valve shall have a permanent sign next to valve stating
"Emergency Gas Shutoff Valve". The valve shall be between 42 to 48 inches off
finished floor level. The Fire Inspector will determine if installation is adequate.
(186) Section 1212.1.1(2)is reworded to add the following to the end of the section:
No corrugated stainless steel tubing(csst)shall be installed outside of a building or
installed below ground in a building. Csst shall be installed by manufacturer's
recommendations unless it violates this code. No appliance connector shall
penetrate the housing of an appliance,or be used in an exterior location.
Material allowed six(6)inches or higher above lowest finished floor shall be:
(6)standard weight wrought iron or steel
(7)black iron or steel
35
(8)corrugated stainless steel(csst)
(187) Section 1212.1.4 is reworded to add the following to the end of the section:
If a building has any fume hood(s)or gas turrets,there shall be a gas valve
located at each exit from the room. The gas piping to each hood shall be arranged
in such a manner that when the valve(s)is shut off,gas flow to the fume hood(s)is
discontinued. The valve shall have a permanent sign next to valve stating
"Emergency Gas Shutoff Valve". The valve shall be between 42 to 48 inches off
finished floor level. The Fire Inspector will determine if installation is adequate.
(188) Section 1213.0 is reworded to add the following to the end of the section:
No liquefied petroleum gas (LP) shall be used in the City of Ames unless
permission is granted by the Fire Inspector.
(189) Section 1214.1.1.1 is reworded to add the following to the end of the section:
The Inspection Division will not have to be present for an air test on gas line.
Before serving gas supplier turns the gas on at the gas meter,the gas supplier may
require in writing from the installer that the gas lines were properly air tested in
accordance with this code.The gas piping shall not be covered or concealed until
after it has been visually inspected by the Inspection Division.
(190) Section 1214.1.4.1 UPC is reworded to read:
Low pressure and two (2) psi shall be tested with air for 15 minutes at 10 psi.
Welded joints and 5 psi shall be tested with air for 30 minutes at 60 psi.
(191) Section 1214.1.4.2 UPC is deleted.
(192) Section 1214.1.4.3 UPC is deleted.
(193) Section 1301.0 UPC is reworded to add the following at the end of the section:
Applicant must provide a certificate to the Inspection Division from an architect or
engineer that the facility,as built,meets the requirements of Chapter 13 UPC.
(194) Section B3 of Appendix B UPC is amended to insert the following words after
engineered:
By an Iowa licensed practicing engineer before work proceeds.
(195) Section D 1 of Appendix D UPC is reworded to read as follows:
The maximum rainfall rate for the City of Ames shall be based on three and one-
half(3 ''/Z)inches in Table D-1 for design.
36
DIVISION VI
ADDITIONAL REQUIREMENTS
Sec.21.601. PROCEDURE FOR ABATEMENT OF PROHIBITED SEWER
CONNECTIONS AND DRAINAGE ARRANGEMENTS.
(1) In that surface water runoff, subsoil and footing drainage water is being allowed to
enter the sanitary sewer system contrary to Ordinance No.1011 enacted December 19, 1961 and other
ordinances of the city to the public detriment from resulting sewer back ups and overloading of the
sewage treatment plant, any connection or arrangement found to exist whereby surface, subsoil or
footing drainage water is discharged or diverted into the sanitary sewer system is deemed to be,and
hereby declared as,a public nuisance.
(2) Whenever such connection or arrangement is found to exist,whereby surface water
runoff, subsoil or footing drainage is discharged or diverted into the sanitary sewer system, the
plumbing inspector shall issue a written notice to the owner to cause sewer to be abated by means of
a connection to a public storm sewer or collector line.
(3) In addition to,or as an alternative to the foregoing,such prohibited connections may
be charged as a municipal infraction and relief sought as appropriate under that procedure as by law
provided.
(Ord.No. 3198, Sec. 1, 9-24-92; Ord. No. 3501,Sec. 1, 10-13-98)
37
DIVISION VII
ILLUSTRATIONS
Sec.21.701. ILLUSTRATIONS RELATING TO CHAPTER 21.
Following are illustrations pertaining to Chapter 21 of the Ames Municipal Code:
38
(1) Alternative Special Venting for Island Sink
2" WASTE STACK M, 1-1/2" VENT PIPE
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(3) Sump Line Connection
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SEWER PIPE OR
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TO BE USED WHEN STORM SEWER PIPE
OR COLLECTOR LINE IS LESS THAN 5 FEET
IN DEPTH BELOW GROUND LEVEL
(4) Drop Service into Manhole
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DROP SERVICE INTO MANHOLE
EXISTING STREET:
TO BE USED WHEN SERVICE HAS TO ENTER
MANHOLE HIGHER THAN 2 FEET ABOVE THE
FLOW LINE,
NEW STREET:
SERVICE SHALL ENTER MANHOLE 2 FEET
ABOVE FLOW LINE WITHOUT THE UPPER
ENTRANCE.
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DIVISION VIII
PENALTY
Sec.21.801. PENALTIES FOR OFFENSES PERTAINING TO PLUMBING.
A violation of any provision of Chapter 21,Plumbing,shall be a municipal infraction punishable
by a penalty of$500 for a person's first violation thereof and$750 for each repeat violation.
(Ord.No. 3198,Sec. 1, 9-24-92, Ord.No. 3337,Sec. 1, 7-25-95;Ord.No.3501,Sec. 1, 10-13-98)"
Section Two. Violation of the provisions of this ordinance shall constitute a municipal infraction punishable as
set out in Section 1.9 of this Code.
Section Three. All ordinances or parts of ordinances in conflict herewith are hereby repealed to the extent of such
conflict,if any.
Section Four. This ordinance shall be in full force and effect from and after its passage and publication as required
by law.
Passed this 1'nth day of April 2004
Diane R.Voss,City Clerk Ted Tedesco,Mayor
00702
APPR EP AAS®TO FORM
i John R.Kk=
City Attomey
46