09/06/94 Water & Sewer Use Text Amendmentq�uIC�`)
AN ORDINANCE REGULATING THE USE OF WATER AND SEWER FACILITIES
OPERATED BY THE COUNTY OF HARNETT FIXING RENTS, RATES, FEES AND
OTHER CHARGES AND PROVIDING FOR COLLECTION OF SAME.
BE IT ORDAINED BY THE COUNTY BOARD OF COMMISSIONERS OF HARNETT
COUNTY.
Section 1. Authori .
This ordinance is adopted pursuant to North Carolina General Statute 153A -275 and for
the purpose of providing adequate and reasonable rules and regulations to protect and
regulate water supply and distribution systems and sewer collection systems owned or
operated by the County of Harnett. The ordinance is also adopted pursuant to North
Carolina general Statute 153A -277 for the purpose of establishing a schedule of rents,
rates, fees, charges and penalties for the use of and services furnished by water supply and
distribution systems and sewer collection systems owned or operated by the County of
Harnett.
Section 2. Definitions.
Air -Gan Separation is an unobstructed vertical distance through the atmosphere
between the lowest opening from any pipe or faucet supplying water to a tank,
plumbing fixture, or other device and the flood level rim of the receptacle.
Auxiliary Intake is any piping connection or other device whereby water may be
secured from a source other than the public water supply.
Backflow is any flow of water into the public water supply form any other source
due to a cross - connection, auxiliary intake, interconnection, backpressure,
backsiphonage, any combination thereof, or other cause.
Backpressure is any pressure on any source of water other than the public water
supply which may be greater than the pressure on the public water supply and may
result in a backflow.
Backflow Prevention Device is an approved effective device method used to
prevent backflow from occurring in the potable water supply. The type of device
shall be based on degree of hazard, existing or potential.
Backsiphonage is any circumstance in which the pressure on the public water
supply may be reduced to the point that the elevation and atmospheric pressure on a
source of water other than the public water supply may result in a pressure to be
greater than the pressure on the public water supply and may result in a back flow.
Buildine is a structure as defined in Volume VII, One and Two Families, and
Volume 1, General Construction, of the NC State Building Code.
Confinement Device is a backflow prevention device that is installed within a
private plumbing or distribution system to isolate a localized hazard from the
remainder of said system.
Connection is that part of the water service line which runs from the main to the
property line, including all appurtenances to make the service complete and ready
for use.
Consumer is the person legally or equitably responsible for the payment of charges
for water or sewer on any premises.
Containment Device is a backflow prevention device installed at the point of
separation between the public water supply and a private service or private
distribution system at the point of metering.
Controlled By is owned, operated or leased by.
Cross - Connection is any physical connection whereby the public water supply is
connected with any other water supply system, whether public or private, either
inside or outside of any building or buildings, in such a manner that a flow of water
into the public water supply is possible either through the manipulation of valves or
because of ineffective check or back - pressure of any other arrangement.
Cut -Off Valve is a valve used to regulate the water supply to the consumer's
premises.
Department shall mean the Harnett County Department of Public Utilities.
District shall mean any County water and sewer district established pursuant to
Article 6, Chapter 162A of the North Carolina General Statutes.
Double Check Valve is an assembly composed of two single, spring- loaded
independently operating check valves, including tightly closing shut -off valves
located at each end of the assembly, and having suitable connections for testing the
watertightness of each check valve.
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Dual Check Valve is a device containing two independently acting check valves in
series.
Easement shall mean an acquired legal right for the specific use of land owned by
others.
Fire Line is a system of pipes and equipment used to supply water in an emergency
for extinquishing fire.
Full Service Sprinkler Connection is a separate metered connection originating at
a main and running to the property line, and includes all appurtenances to make the
connection complete and ready for use. This connection is independent of any
other water connection on the premises and shall not be connected to any plumbing
or other pipeline where residual water therefrom is required to be discharged into
the sewer system.
HCDPU shall mean Harnett County Department of Public Utilities.
Improved Street is any street having a wearing surface of concrete, brick, stone
block, asphalt, or any bituminous compound.
Interconnection is any system of piping or other arrangement whereby the public
water supply is connected directly with a sewer, drain, conduit, pool, heat
exchanger, storage reservoir, or other device which does or may contain sewage or
other waste or substance which would be capable of imparting contamination to the
public water supply.
Lateral is that portion of the water connection which does not include meter, box or
meter setter or connection.
Pressure Vacuum Breaker is an assembly containing an independently operating
spring loaded check valve and an independently operating loaded air inlet valve
located on the discharge side of the check valve. The assembly must be equipped
with suitable connections for testing the proper operation of the device and tightly
closing shut -off valves located at each end of the assembly.
Public Water Supply is the water and waterworks system of the County of Harnett,
and its consumers outside the County boundary, for the provision of piped water for
human consumption , and which supply is recognized as a public and community
water system by the North Carolina Department of Environment and Natural
Resources, Division of Environmental Health, Public Water Supply Section.
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Reduced Pressure Zone Principle Backflow Prevention Device (RPZ) is a device
containing within its structure, two spring loaded independently operating check
valves, together with an automatically operating check valves, together with an
automatically operating pressure differential relief valve located between the two
check valves. The first check valve reduces the supply pressure a predetermined
amount so that during normal flow and at cessation of formal flow the pressure
between the checks shall be less that the supply pressure. In case of leakage of
either check valve, the differential relief valve, by discharging into the atmosphere,
shall operate to maintain the pressure between the check valves less than the supply
pressure. The device shall have suitable connections for testing, including tightly
closing shut -off valves located at each end.
Retrofitted Sprinkler Connection is a second metered connection originating at a
point along that segment of the existing service line between the main and the first
or existing meter and running to the property line, and includes all appurtenances to
make the connections complete and ready for use. The Retrofitted Sprinkler
Connection shall not be connected to any plumbing or other pipeline where residual
water therefrom is required to be discharged into the sewer system.
Service Line is a water line which may service a house, business, apartments, etc.
which runs from the street to the establishment being served.
Main is the water pipe usually laid in a street running parallel to the property line
which distributes water or collects sewer.
May is permissive (see "shall).
Occupan t is the consumer who is actually in possession or control of any premises.
Owner is the person having legal or equitable title to any premises.
Person is an individual, firm, association, partnership or corporation.
Premises is land, building, or other structure and appurtenances thereto.
Shall is mandatory (see "may).
Unusual Conditions to mean delays in acquiring materials, parts and (or) supplies,
rock encountered in construction and other items which might cause delays not
under the control of the County.
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Section 3. Water Laterals and Tan -On.
Water laterals will be installed only at the request of the Owner or his agent. When the
lateral terminates at the property line, the meter shall not be set and the lateral shall not be
used until the owner of the property or his agent applies for service.
Section 4. Connection To Be Made By County Only Upon Application.
The construction of water laterals within the street right -of -way and the setting of meters
shall be the responsibility of HCDPU. The construction of such lateral or the setting of
such meter shall be done only after the written application therefor has been approved. The
only exception to this provision will be when laterals and meter yokes are installed by
developer's contractors in new subdivisions in compliance with Rules, Regulations and
Specifications as shall be established by the County of Harnett from time to time.
Section 5. Application for Connection.
Every application for water service shall list, on forms provided by HCDPU, the property
owner, the applicant's name, social security number, driver's license number, phone
number, and all other relative forms of identification required by HCDPU, the street on
which the lot is located, the number of the house or a description of the lot location, the
number of all types of fixtures planned in the building now and proposed for the future, the
distance from the property line where service comes from the street to the furthermost
point of the building as planned, and the name of the plumber who will do the work. This
application shall be filed not less than ten days before the proposed connection is desired.
Unusual conditions may be just cause for additional time in providing the services
required. When the size of the service and the cost of the connection have been
determined, the applicant shall deposit the previously determined cost and shall be issued a
permit for the desired connection. The County of Harnett shall have responsibility for the
design of a sprinkler or other fire protection system. Application for a connection to serve
such a system shall be made exactly as outlined above except that the size of the
connection desired shall be placed upon the application and installation shall be made
subject to securing required parts and materials.
Section 6. Disapproval of Application.
If, in the opinion of the County through its duly constituted authority, the water
connection applied for will be of such size or character as to put too great a demand on any
part of the system and disrupt the County's ordinary water service (500 GPM at 20 PSI
residual plus normal service requirements), it shall disapprove the application until such
time as adequate means are provided by the applicant to eliminate the unsatisfactory
condition. If, at any time, changes are made by a consumer in his service requirements so
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as to create an unsatisfactory condition in the County's water service, HCDPU shall require
the consumer to adopt remedial measures to eliminate the unsatisfactory condition. The
County shall not in any way be responsible for any cost or inconvenience caused by a
change in service requirements after an application has been approved, or by an installation
before the application has been approved.
Section 7. Separate Water and Sewer Connections and Meters Required.
Each building shall have a separate meter, and where practicable shall have a separate
water lateral. In the event that one lateral is used for two dwellings, commercial or
industrial buildings, of used to serve two or more meters for the same dwelling,
commercial or industrial buildings, a separate cut -off shall be provided for each meter.
However, there shall be an exception to the requirement for separate water meters in the
case of groups of mobile homes or apartment developments under single ownership. In the
case of said groups of mobile homes or apartment developments of more than ten (10)
units, one meter shall be used for the entire project unless additional meters are deemed
necessary by the proper County authority, and the following conditions shall be met:
(a) Bills will be rendered to the Owner of the property.
(b) The bill will be calculated by a minimum charge for the master meter and for
each of the total number of units included thereafter, and calculating the
remaining bill based on the total consumption passing through the master
meter above the minimum; provided, however, owners of ten or fewer multiple
units may elect to have water metered directly to each unit and the charge
therefore billed directly to the user in each unit.
(c) Should any portion of the development be sold, the owners shall be responsible
for paying whatever additional costs would be involved in bringing the divided
development into compliance with this article.
In the case of group mobile homes or apartment developments where ten or fewer units are
involved, and where ownership is in one party, the owner may elect to have a single meter
used for the entire project. Where such election is made the owner shall comply with the
conditions set forth as (a), (b) and (c) set forth in the paragraph above.
Section 8. Connections And Meters To Remain Property Of The County.
All meters, boxes, pipes and other equipment furnished and installed by HCDPU in a
water or sewer connection shall remain the property of the County. If, after an installation
is completed, the property owner requests that a meter or lateral be changed in size and this
request is approved by the County, the property owner shall pay for the change of lateral as
though it were a new connection and shall pay or be credited the difference of the cost of
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meters in the original and new installations according to the then current price of the two
meters.
Section 9. Maintenance Of Meters And Connections.
All meter and water laterals shall be maintained by HCDPU at the County's expense.
Section 10. Connection To Other Supply and Cross - Connection Control.
No part of the County's water system shall be connected to any source of water supply
other than those authorized by official action of the County Board of Commissioners. If,
on any premises, both County water and water from any other source is used, the piping
shall be completely separate. Pipes carrying water from a source other than the County's
supply shall be painted yellow. It shall be unlawful for any person to cause a cross -
connection, auxiliary intake, or interconnection to be made with the public water supply; or
allow one to exist for any purpose whatsoever.
HCDPU has the responsibility to inspect properties served by the public water supply
where cross - connections with the public water supply are deemed possible. The frequency
of these inspections shall be set by the department. HCDPU shall have the right to enter, at
reasonable time, any nonresidential property served by a connection to the public water
supply for the purpose of conducting these inspections. In those cases in which the
property owner chooses not to provide such access, HCDPU may designate the location as
a high hazard in accordance with the paragraphs below.
The following uses shall be classified as hazardous uses:
(a) Hazardous uses include, but are not limited to: pumps or tanks handling
sewage, radioactive, lethal, or toxic substances, boiler and steam connections,
sewer waste lines, low inlets to receptacles containing toxic substances, coils
or jackets used as heat exchangers, flush valve toilets without vacuum breaks,
bacterial and viral materials, private wells or other private water supply,
irrigation systems, water systems or hose connections, booster pumps,
carbonation equipment, or similar hazard potential as determined by the
Department.
(b) Any location at which the nature or mode of operation within a premise are
such that frequent alterations are make to the plumbing or at which there is a
likelihood in the determination of the Department that protective measures
may be subverted, altered, or disconnected.
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(c) Any facility which contains, but is not limited to, a bottling plant, cannery, a
building having five or more stories, battery manufacturer, exterminator,
greenhouse, chemical processing plant, dairy, dye works, film laboratory, car
wash, hospital, commercial laboratory, laundry, metal fabrication operation,
mortuary, swimming pool, morgue, x -ray equipment, medical office with
laboratory, aspirator, medical washing equipment, packing house, plating
plant, poultry house, power plant, nuclear reactor, pumped fire sprinkler or
riser system or those equipped with facilities for the introduction of freeze
preventive chemicals or other substances other than water.
All installations described in the above paragraphs (a) -(c) shall be deemed
hazardous uses, and must have a containment device in the form of a reduced
pressure zone backflow prevention device provided that, if the consumer
demonstrates to the satisfaction of HCDPU that sufficient internal confinement
devices have been installed and tested. The Department may require that the
consumer, provide engineering drawings sealed by a professional engineer of
installations within the premises, which provide complete internal protection
against cross - connection as approved by the Department. Any such connection
shall be considered another connection for the purpose of determining the type of
containment device required. Each internal confinement device shall be one of the
following, as approved by HCDPU or their authorized representative: reduced
pressure zone principle backflow prevention device, double check valve backflow
prevention device, air gap, vacuum break- pressure type, or dual check valve. Each
reduced pressure zone principle backflow prevention device serving as an internal
confinement device shall have a mesh strainer immediately upstream of the inlet
gate valve.
Services to single - family residential units, not otherwise required by this ordinance
to have other containment devices, may have a containment device in the form of a
dual check valve. HCDPU supplies this dual check valve when residential
connections are installed. On all other services which other containment devices
are required the owners representative shall be required to install these devices
prior to the installation of a meter by HCDPU. On all such services for which
meters have been applied prior to the adoption of this ordinance, said dual check
valve shall be installed by HCDPU, provided that the Department reserves the
right to charge the owner or occupant of any residence for the cost of said device
and its installation. Maintenance of dual check valve containment devices
installed in accordance with this section shall be conducted by the Department.
All other connections to the public water supply of Harnett County shall have
containment devices in the form of double check valve backflow prevention
devices as set forth in the following paragraph. This shall include water mains
installed by HCDPU, including but not limited to mobile home parks, apartments,
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group housing projects, and other private distribution systems, or similar hazard
potential as determined by HCDPU or their authorized representative.
All containment devices shall be installed according to the following procedure:
(a) The containment devices shall be located off street right -of -way on the
water main side of any plumbing connection. When installed in a
building, the device shall be located on the service line immediately
after its entrance into the building. Each containment and confinement
device shall be installed in a location which is physically accessible for
inspection and testing as determined by HCDPU. Containment devices
which have been buried in the ground do not satisfy the provisions of
this ordinance. Each reduced pressure principle zone device shall be
installed such that flooding of the device is unlikely as determined by
the Department.
(b) HCDPU shall maintain a list of approved manufacturers and models of
hazard containment devices and drawings of standard installations,
copies to be made available through the administration office of the
Department. All installations and materials shall conform to HCDPU
standards.
(c) In those cases in which containment and /or confinement devices have
been previously installed by any party, the responsibility for
maintenance, testing, and replacement as applicable shall be with the
consumer.
(d) The cost of said means of containment, and any other plumbing
modifications necessary and convenient thereto, and the testing and
maintenance thereof is to be paid for by the consumer.
Upon identification of a hazard, or hazard potential, as defined in this section of the
ordinance, HCDPU shall notify the consumer, of record, of the the property on
which the hazard exists of the following:
(a) Location of the Hazard
(b) Nature of the Hazard Observed
(c) Date of the Hazard Observed
(d) Applicable Section of the Ordinance
(e) Requirements of the Ordinance
Such notification to be made by certified mail, with return receipt reguested.
HCDPU shall be notified by the consumer when the nature of use of the property
changes so as to change the hazard classification of that property, as set forth in this
ordinance.
The consumer at each property at which containment and /or confinement device(s)
have been installed shall have each containment or confinement device(s) tested on
an annual basis, and perform any routine maintenance to such device as
recommended by the manufacturer, and provide the Department with a report of
that inspection and work. The consumer shall cause such maintenance, or repairs to
be made, rendering the device fully operational. Failure of the consumer to perform
that testing and maintenance shall cause for the premises to be deemed an
immediate public health hazard. HCDPU may immediately thereafter discontinue
public water supply service to that premises and service shall not be restored until
such devices have been rendered fully operational. Where the use of water is
critical to the continuance of normal operations or protection of life, property, and
equipment, duplicate containment or confinement devices shall be provided by the
property owner to avoid the necessity of discontinuing water service to test or repair
the device(s).
Consumer responsibilities under this section include:
(a) The consumer shall, as required in this ordinance and upon notification,
install the hazard containment device(s) as required within ninety (90)
days of the date of notification.
(b) If, after expiration of ninety (90) days, the containment device(s) has
not been installed in conformance with the standards set forth in this
ordinance and by the Department, in proper working condition, the
Department may discontinue the public water supply at that premises,
and service shall not be restored until such devices have been installed.
The Department may permit an extension of up to ninety (90)
additional days if compliance efforts are underway and the existence of
hardship can be determined.
(c) Harnett County shall bear no liability for director consequential
damages caused by the discontinuance of service pursuant to this
ordinance.
Section 11. When Water Meters Read.
All water meters on water systems controlled by the County shall be read monthly.
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Section 12. Adiustment Of Overcharges.
HCDPU shall have the authority to adjust any water bill after determining that the water
bill is excessive, upon the following conditions:
(a) If the cause is a defect in a water meter, the water bill shall be reduced by fifty
percent (50 %) of the amount by which it exceeds one and one -half (11/2) times the
average water bill for the preceding three (3) months.
(b) If the cause is of ah undetermined origin, and it does not appear upon investigation
that the occupant or occupants of the premises served were in any way at fault for the
excessive water bill, the adjusted bill shall be calculated the same as in (a) of this
rule.
(c) All metered water lost due to negligence on the part of the user will be charged at the
normal rate, and no adjustment of the bill shall be made.
Section 13. Meter Tests.
Any consumer may have a test of his water meter made upon payment in advance of a fee
of actual cost of the test for any size meter. A deposit for the estimated cost of the test is
required before such test is conducted. If the consumption shown on the meter in question
is greater than twice the average consumption for the preceding six months, the fee for
testing the meter shall be waived. Since the most accurate water meters suitable for
general use require a margin of approximately two and one -half percent for error, any
meter which shows upon test an error not greater than two and one -half percent shall not be
considered defective. If the meter is found to be over - registering in excess of two and one -
half percent, refund shall be made in accordance with Section 12 (a) above, and the deposit
paid for the test shall be refunded.
Section 14. Bulk Water Usage.
Water from a hydrant will be furnished any circus, road show, carnival, fair or other
similar temporary user at a per diem rate to be paid in advance and to be determined by
HCDPU upon the basis of the estimated quantity needed. A Bulk Usage Permit must be
applied for showing the water user's name, address, hydrant location, and estimated
gallonage. The water user agrees to pay for water obtained at the rate of $5.00 per 1,000
gallons. A non - refundable deposit of $25.00 will be required for purchases of 0 - 4,999
gallons and a non - refundable deposit of $100.00 will be required for purchases greater than
5,000 gallons.
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Section 15. Water For Building Purposes.
Portable meters for connection to fire hydrants may be furnished by the County after an
application and a deposit of $100.00 (minimum) has been filed with HCDPU. The actual
deposit shall be as determined by HCDPU, but in no case shall the deposit exceed the cost
of meter, materials and installation cost thereof. The applicant shall be responsible for any
damage to the hydrant, meter, connections, etc., used in the installation and the cost of any
such damage shall be taken from the deposit. A service charge equal to the then minimum
monthly water bill rate for each month or part thereof shall be made for a temporary meter
in addition to the cost of the water used through such meter. After deducting the water bill,
service charge and any cost of damage to the installation, HCDPU shall refund the balance
of the deposit to the applicant as soon as the meter is removed and returned to the County's
stock. While in use, no wrench shall be used on the hydrant except a hydrant wrench
fumished by HCDPU. If scarred by unauthorized methods, the cost of nut and labor to
repair shall be charged to person responsible. Should the water bill, service charge and
cost of damage exceed the deposit, the user shall pay the amount of such excess to the
County.
Section 16. Tampering With Meters and Stopcocks.
No person, except an employee of HCDPU, shall turn the stopcock installed in each
meter box nor shall any person construct or have constructed any bypass around any meter
except as may be installed and sealed by the County. The fact that water is cut on to any
premises by a person without the prior knowledge of either the County or the consumer
shall not relieve the consumer of liability for such unauthorized use of water. A minimum
fee of $100.00 shall be imposed upon the consumer where such tampering or unauthorized
use of water has occurred.
Section 17, No Guarantee Of Ouality, Ouantitv Of Pressure Of Water Supply.
Neither the District nor the County guarantee the quality, quantity or pressure of its water
supply. It is hereby made a portion of the terms on which the County and the District
furnish water to consumers that the County and the District shall in no case be liable to any
consumer for any defect on quality or any deficiency in quantity or pressure; that the
County and the District shall not be liable to any consumer for damages resulting from the
complete or partial cutting off of water; and no deduction shall be made from any water bill
by reason of any such defect or deficiency. No County employee shall take responsibility
for telling a property owner or occupant how best to care for his boiler, heater or other
equipment which is affected by the discontinuance, either temporary or permanent, of his
water supply. The owner or occupant shall be entirely responsible for his equipment and
shall hold the County and the District in no way responsible for damage thereof.
Section 18. Protection Of Water Supolv.
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No person shall contaminate any portion of the County or of the Districts' water supply
whether the same is in a reservoir, or tank, or pipe.
Section 19. Repealing Clause.
All ordinances or parts of ordinances in conflict with this ordinance are hereby repealed.
If any section, paragraph, subdivision, clause or provision of this ordinance shall be
adjudged invalid, such adjudication shall apply only to such section, paragraph,
subdivision, clause or provision so adjudged, and the remainder of this ordinance shall be
deemed valid and effective.
Section 20. Procedures.
(a) Service will be supplied only to those who apply.
(b) Users will make application for service, in person, at HCDPU and at the same time
make the deposit guarantee required below.
(c) The amount of deposit shall be determined by entering customer information into an
On -line Utility Database. If the customer has a history of outstanding debt to other
utilities, a copy of the amount of debt and the utility to whom it is owed shall be
provided to the customer at the time of application.
(d) Property owners, if approved by the On -line Utility Database procedure described in
Section 20 (c) above, shall make a minimum cash deposit of $10.00. If the property
owner has a history of outstanding debt to other utilities, they will be charged a
minimum deposit of $50.00. All other users, if approved by the On -Line Utility
database procedure described in Section 20 (c) above, shall make a minimum cash
deposit of $50.00 All other users with a history of outstanding debt to other utilities
will be charged a minimum deposit of $100.00. Deposits shall not accrue interest.
All users who qualify as commercial users under the current rate structure shall be
exempt from this deposit requirement.
(e) All property owners with no established accounts, must provide HCDPU with a
deed or purchase agreement for the property where water and/or sewer service will
be provided.. All other users must provide HCDPU with a copy of a rental or lease
agreement for the property where water and /or sewer service will be provided.
(f) HCDPU may reject any application for service not available under a standard rate
or which involves excessive service cost, or which may affect the supply of service
to other customers or for other good and sufficient reasons.
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(g) HCDPU may reject any application for service when the applicant is delinquent in
payment of any bills incurred for service or connection fees previously supplied at
any location, provided that when the Owner of the premises has been served water
and has not paid for the same, HCDPU shall not be required to render service to
anyone at said location where the water was used until said water bill has been paid.
(h) The person or persons in whose name the deposit is made shall be responsible for
payment of all bills incurred in connection with the service furnished.
(i) A separate deposit is required for each meter and/or service connection
requested.
0) The deposit receipt is not negotiable and can be redeemed only at HCDPU.
(k) The deposit required by Rules & Regulations or part remaining thereof will be
refunded upon payment of final bill and final accounting.
Section 21. Initial Or Minimum Charee.
(a) The initial or minimum charge, as provided in the rate schedule, shall be made for
each meter installed, regardless of location.
(b) In resort or seasonal areas where service is furnished to a consumer during certain
months only, the minimum charge per service for the period of non -use shall be the
regular minimum as set out in the published rates of the County.
(c) Water furnished for a given lot shall be used on that lot only. Each consumer's
service must be separately metered at a single delivery and metering point. Each
commercial unit and each storeroom or stall used for business purposes shall have a
separate meter. All commercial use including storerooms and stalls for business
purposes shall be metered separately from any residential use and vice versa,
whether now in service or to be installed in the future.
(d) Consumers shall be responsible for paying the minimum monthly water bill
whether or not water is actually used during a month.
Section 22. County's Responsibility And Liability.
(a) The County shall run a service line from its distribution line to the property line
where the distribution line runs immediately adjacent and parallel to the property to
be served, and for which a tap -on fee, and capacity use fee then in effect, will be
charged.
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(b) The County may install a meter at the property line or, at the County's option, on
the consumers property or in a location mutually agreed upon.
(c) When two or more meters are to be installed on the same premises for different
consumers, they shall be closely grouped and each clearly designated to which
consumer it applies.
(d) The County does not assume the responsibility of inspecting the consumer's
piping or apparatus and will not be responsible therefor.
(e) The County reserves the right to refuse service unless the consumer's lines or
piping are installed in such manner as to prevent cross - connections or backflow.
(f) The County shall not be liable for damage of any kind whatsoever resulting from
water or the use of water on the consumer's premises, unless such damage results
directly from negligence on the part of the County. The County shall not be
responsible for any damage done by or resulting from any defect in the piping,
fixtures, or appliances on the consumer's premises. The County shall not be
responsible for negligence of third persons or forces beyond the control of the
County resulting in any interruption of service.
(g) Under normal conditions, the consumer will be notified of any anticipated
interruption of service.
Section 23. Consumer's Responsibility.
(a) Piping on the consumer's premises must be so arranged that the connections are
conveniently located with respect to the County's lines or mains.
(b) If the consumer's piping on the consumer's premises is so arranged that
HCDPU is called upon to provide additional meters, each place of metering will be
considered as a separate and individual account.
(c) Where meter is placed on premises of a consumer, a suitable place shall be
provided by consumer for placing such meter, unobstructed and accessible
at all times to the meter reader.
(d) The consumer shall furnish and maintain the service line on the consumer's side of
the meter; the County to provide a like service on the County's side of such meter.
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(e) The consumer's piping and apparatus shall be installed and maintained by the
consumer at the consumer's expense in a safe and efficient manner and in
accordance with the County's rules, regulations, specifications, and ordinances and
in full compliance with the sanitary regulations of the North Carolina State Board
of Health.
(f) The consumer shall guarantee proper protection for all property controlled by
Harnett County and placed on the consumer's premises by the County or any
predecessor in interest to the County and shall permit access to it only by authorized
representatives of the County.
(g) In the event that any loss or damage to such property or any accident or injury to
persons or property is caused by or results from the negligence or wrongful act of
the consumer, his agents, or employees, the cost of the necessary repairs or
replacements shall be paid by the consumer to the County and any liability
otherwise resulting shall be assumed by the consumer.
(h) The amount of such loss or damage or the cost of repairs shall be added to the
consumer's bill; and if not paid, service may be discontinued by the County.
Section 24. Access To Premises.
HCDPU personnel shall have access at all reasonable hours to the premises of the
consumer for the purpose of installing or removing property controlled by Harnett
County, inspecting piping, reading or testing meters, or for any other purpose in
connection with the County's service and facilities.
Section 25. Change of Occupancy.
(a) Not less than three days notice must be given in person or in writing to discontinue
service for a change in occupancy. Such notice shall be given at the HCDPU office
which has responsibility for management of water and sewer systems.
(b) The outgoing party shall be responsible for all water consumed up to the time of
departure or the time specified for departure, whichever period is longest.
Section 26. Suspension Of Service.
(a) Services may be discontinued at the request of the consumer, provided the
consumer pay all current balances or a $700 liquidating damage fee, whichever is
less. When services are discontinued and all bills paid, the deposit will be refunded
in accordance with these Rules and Regulations.
16
(b) Services may also be discontinued by HCDPU to any customer whose account
remains delinquent for more than ten (10) days. The deposit will be applied by
HCDPU toward settlement of the account. Any balance will be refunded to the
consumer; but if the deposit is not sufficient to cover the bill, HCDPU may
proceed to collect the balance in the usual way provided by law for the collection
of debts.
(c) Property owners may have a service discontinued for rental property in the event
that the rental unit is vacant for a period not to exceed twelve (12) months. If the
rental property is still vacant after twelve (12) months from the original suspension
date, the property owner will begin to receive minimum bills for that location.
(d) Service discontinued for non - payment of bills will be restored, at the request of the
consumer only after bills are paid in full. A service charge of $25.00 is also due
once a consumer is in a delinquent status that merits them being placed on the cut-
off list. This charge is hereafter referred to as a reconnection fee. The consumer
being reconnected must also make the required deposit. The consumer may elect
to pay an additional service fee of $35.00 to expedite the reconnection process.
The payment of this fee will guarantee the reestablishment of water service to the
consumer on the same day the account is paid in full.
(e) After a connection has been discontinued for a period of twelve consecutive
months HCDPU may remove the meter base, meter, curb stop valve, meter box
and service line for use elsewhere or for storage.
(f) At any time after a connection has been discontinued an additional service charge
equal to the then current tap -on -fee shall be paid as a reconnection fee. Also the
consumer must make the required deposit.
(g) The County reserves the right to discontinue its service without notice for the
following additional reasons:
1. To prevent fraud or abuse.
2. Consumers willful disregard for the County's rules and ordinances.
3. Emergency repairs.
4. Insufficiency of supply due to circumstances beyond the County's
control.
5. Legal processes.
17
6. Direction of public authorities.
7. Strike, riot, fire, flood, accident, or any unavoidable cause.
(h) The County may, in addition to prosecution by law, permanently refuse service to
any consumer who tampers with a meter or other measuring device.
(i) Harnett County gave a privilege for early connection to the water system to every
property owner or resident as the water mains were installed. From time to time,
the County may give privileges for connections at reduced amounts in order to
encourage additional hookups to increase revenue. Any consumer who takes
advantage of a reduced connection will be responsible for paying at least the
minimum monthly water bill whether or not water is actually used until such time
as the reduced connection fee charged plus all monthly water bills charged equal
the then current charge for tap -on connection. The consumer shall remain liable
for at least the minimum monthly bill thereafter until he has notified the County in
accordance with other provisions of this ordinance that he desires to stop his
service.
Section 27. Complaints - Adjustments.
(a) If the consumer believes his bill to be in error, he shall present his claim, in
person, at HCDPU before the bill becomes delinquent. Such claim, if made
after the bill has become delinquent, shall not be effective in preventing
discontinuance of service as heretofore provided. The consumer may pay such
bill under protest, and said payment shall not prejudice his claim.
(b) HCDPU will make special meter readings at the request of the consumer for a
fee of $15.00 provided, however, that if such special reading discloses that the
meter was over read, or in error in any way, the fee will be refunded.
(c) Meters will be tested at the request of the consumer upon payment to HCDPU of
the actual cost to the County of making the test provided, however, if the meter
is found to over register or under register beyond two and one -half per centum (2
1/2) of the correct volume, no charge will be made.
(d) If the seal of the meter is broken by other than the County's representative, or if
the meter fails to register correctly, or is stopped for any cause, the consumer
shall pay an amount estimated from the record of his previous bills and /or from
other proper data.
No modification of rates or any of the rules and regulations shall be made by any
employee of the County.
18
Section 28. Classifications, Rates, Fees and Charges.
The following classifications, rates, fees, and charges are adopted:
(a) Classification of Service.
All services are classified under three categories to include residential,
commercial, or bulk municipal users. A residential service is a service
requiring a meter size up to and including one inch. A commercial service
is a service requiring a meter size greater than one inch up to and including
two inches. A bulk municipal service is a service requiring a meter size
greater than two inches, where the user is a municipality and /or other public
body.
(b) Rate Schedule:
(1) Residential:
Water Schedule
Flat rate, first 2,000 gallons (minimum)
All water used over 2,000 gallons
Sewer Schedule
Monthly
$14.50
$ 3.50 per 1,000 gallons
Monthlv
Flate rate, no gallons $13.50
Commodity charge $2.80 per 1,000 gallons
Flat sewer rate, one person household $17.90
Flat sewer rate, two or more in household $21.65
(2) Commercial:
Water Schedule
Flat rate, first 2,000 gallons (minimum)
All water used over 2,000 gallons
Flat rate, 50,000 gallons minimum
Commodity charge
IN
Monthlv
$18.40
$2.85 per 1,000 gallons
$14.50
$2.55 per 1,000 gallons
Sewer Schedule
Flat rate, no gallons
Commodity charge
Flat rate, institutional, no gallons
Commodity charge
(3) Bulk Municipal:
Monthly
$29.00
$3.30 per 1,000 gallons
$200 minimum
$3.30 per 1,000 gallons
$1.70 for each 1,000 gallons used. Where bulk municipal connections exist, the
County may require that the water purchaser guarantee a minimum usage allocation
and payment for the same, whether used or not.
Note: Bulk municipal rates may differ depending upon the purchase of capacity in
County owned production facilities and /or other extenuating circumstances deemed
by the County.
(c) Tap -On -Fees.
Water Services
2 inch connection
$2,100
1 1/2 inch connection
$1,250
1 inch connection
$950
3/4 inch connection
$700
Sewer Services
4 inch gravity connection $850
6 inch gravity connection
$1,150
8 inch gravity connection
$1,450
Gravity Tank
$2,200
Step Tank
$2,500
Larger connections and /or road bores, including those for bulk municipal
connections, shall be negotiated as may be appropriate.
20
(d) Fire Protection Charges.
Services
Standby Fire Plugs
6 inch Sprinkler Connection
8 inch Sprinkler Connection
12 inch Sprinkler Connection
Others
(e) Master Meter Connection Fee.
Charges
$5.00 /month each added to water billing,
plus cost of installation and materials
$10.00 /month, plus cost of installation and
materials
$25.00 /month, plus cost of installation
and materials
$100.00 /month, plus cost of
installation and materials
Negotiated
The master meter connection fee is cost of materials, plus twenty (20) percent.
(i) Rates for persons living outside the District.
Rates for persons living outside of Harnett County and served by County water lines
owned or operated by the County or a District shall be equal to rates for persons
living inside the County so long as no tax is levied within the County for support of
the system; if a tax is levied on users inside the County for the purpose of supporting
the water system, then the users outside the County shall pay an increased rate.
(g) Water and Sewer System Capacity Use Fees.
A Water System Capacity Use Fee of $500.00 and a Sewer System Capacity Use Fee
of $600.00 per meter connection will be charged for all new residential water and /or
sewer services connecting to any water supply or distribution system and /or sewer
collection system owned and /or operated by the County of Hamett. These capacity
use fees shall be paid in the manner set forth below: The full balance of the fees
shall be payable upon the installation of a water and/or sewer service to any water
supply or distribution system and/or sewer collection system owned or operated by
the County. In instances where a water supply or distribution system and/or sewer
21
collection system is conveyed to either the County or a County Water and Sewer
District, if the system was not owned or operated by the County at the time a water
and/or sewer service was installed, then one -half of the capacity use fee shall be paid
at the time the system is conveyed to either the County or to a Water and Sewer
District, and the balance shall be paid within six months from the date of conveyance
or until more than fifty- percent (50 %) of the lots and/or units are sold, whichever
comes first. Large subdivision or phases thereof, either of which are composed of 50
or more lots, are required to pay 25% of the total amount due in water and sewer
capacity use fees at the time of conveyance to the County or a County water and
sewer district. The next 25% is due in six months from the time of conveyance. The
third 25% is due at 1 year from conveyance and the final conveyance is due 18
months from the original conveyance date. Any developer which uses this large
subdivision method of capacity use fee payment shall be required to provide a
payment bond to the County for the full amount of capacity use fees for those phases
of the development which are recorded at the Harnett County Register of Deeds
office. The Department while it is waiting for the receipt of the developer's
authorization to construct from the North Carolina Department of Environment and
Natural Resources.
Section 29. Connection to Existing Systems.
In the event that the County desires to connect its water distribution system to previously
existing systems, all such systems must have the approval of the Division of Health
Services, of the North Carolina Department of Human Resources before such connection
may take place and all previously existing sources of water must be completely abandoned
and rendered incapable of future water production.
Section 30.1 Water and Sewer Extension in New Developments.
The responsibility for extending water and sewer lines to and within new subdivisions or
within other new developments lies with the subdivider or developer, although the county
may in its discretion contract with the subdivider or developer to install such water or
sewer lines with County personnel.
(a) The cost of extending water or sewer lines to and within subdivisions or
other new developments shall be borne by the subdivider or developer. If
the county requires lines within a subdivision or other new development that
are larger than those necessary to serve the project and are so located to
serve other properties, the county shall reimburse the developer for any
additional costs incurred as a result of installing such oversized lines.
(b) If a water or sewer system is to be installed in a subdivision in the County's
jurisdiction, and the system is to be assumed and maintained by the County
immediately upon completion of installation, a complete set of construction
22
plans must be provided for the proposed system. The plans shall be prepared
by a registered engineer and shall meet the utility requirements of the
County, the Division of Health Services, North Carolina Department of
Human Resources and/or the Division of Environmental Management of the
North Carolina Department of Natural Resources and Community
Development. The plans shall be approved by the administrator and the
registered engineer retained by the developer or owner. The engineer shall
provide as -built plans and location maps for all valves and hydrant
locations.
(c) The systems shall be designed in accordance with specifications provided
by the County. Fire hydrants shall be spaced to provide coverage within a
1000 foot radius for residential development or a 500 foot radius for
commercial development.
(d) Minimum water main size shall be 2 inches. Acceptable line sizes are
2 ". 4 ", 6 ", 8' - 12 ", and 16" 20 ". Minimum sewer main size shall be 8
inches.
(e) The County will make applications for all necessary permits for
extensions. No tie -ins to the existing system may be made until all permits
have been secured by the County.
(f) The developer shall secure the services of a professional engineer to
design the system in accordance with county specifications. The County
will monitor all construction to ensure conformity with approved design
drawings.
(g) All extensions must be within maintained road rights of way or
dedicated rights of way and will not be activated until proof of such
dedication has been provided to the County.
(h) Each individual, apartment, residence, or business, must have an individual
meters with the exception of existing apartment complexes, condominiums,
shopping centers, mobile home parks and residential developments where
lines do not meet County standards. These qualifications for the use of
master meters, rather than individual meters, are clearly defined in section 7
of the Harnett County Ordinance Regulating The Use Of Water Facilities.
(i) Meters meeting County specification and of appropriate size for desired
application shall be furnished to the County at the expense of the
developer and shall become the property of the County.
23
(j) Each occupancy or property owner must post a security deposit and
setup fee, as listed in Section 20 (d) of the above- mentioned ordinance,
prior to activation of the service.
(k) All water lines and meter services must be in a right -of -way with a
minimum width of twenty (20) feet and dedicated to the County for the
operation and maintenance of said water lines and meter services.
Section 30.2 Extension of Water and Sewer Lines Within the County.
(a) The County currently extends service to rural areas by 3 methods:
1. Capital Projects using Loan & Grants to fund.
2. Private Development within public rights -of -way or dedicated
rights -of -way funded by private funds.
Co- operative Projects - between the County and private sector
for commercial and industrial development. The amount of County
funds contributed to a co- operative project is guaranteed to be
repaid to the County by the developer in net tax proceeds from the
improved Property within the first five years. If the net tax
proceeds received within the five year period fail to equal the
County's fiscal contribution to the project, the Developer shall pay
the difference to the County.
(b) The County proposes to designate, from the Harnett County General Fund
and /or the Public Utilities Fund, certain restricted annual appropriations for
the development of water and sewer line extensions within Harnett County.
All requests for extensions shall be rated on the following point system.
1. Public Health Severity 40 points
2. Cost Feasibility Based Upon Return of Investment 40 points
3. Contributed Capital by Individual or Business 20 points
Points Maximum 100 Points
The responsibility for rating each request will be with the Director of
Harnett County Department of Public Utilities or the designee of the
24
Director. A minimum score of 50 points is required in order for the Harnett
County Board of Commissioners to consider the request.
Section 30.3 Extensions Outside of County.
(a) The County has no responsibility to provide water or sewer service to
property located outside the County. However, upon request, the County
may extend its water or sewer lines to serve properties outside the County
when it determines that it is in the County's best interest to do so.
(b) Any owner of property outside the County who seeks an extension of the
County's water or sewer system to serve the property shall submit an
application for extension to the County. The owner shall provide all
information the County deems necessary to determine whether the requested
extension is feasible and in the County's best interest.
(c) The responsibility for, and the entire cost of, extending a water or sewer
line to serve property outside the county shall be borne by the property
owner requesting the extension.
Section 30.4 Extensions Made by Other than County Personnel.
(a) Extensions of the County's water or sewer system installed by other than
County personnel, whether inside or outside the county, shall be installed by a
licensed utility contractor in accordance with the provisions of this policy as
well as other County specifications and requirements. Among other matters,
such specifications shall govern the size of all lines, their locations, grades,
materials used, manner of installation and provision for future extensions.
(b) No construction or any addition to the County's water or sewer system
shall commence until detailed plans have been reviewed and approved by
the Director of the Harnett County Department of Public Utilities or the
designee of the Director. Such plans shall include whatever information
the administrator deems necessary to determine whether the proposed
extension complies with all applicable county specifications and
requirements.
(c) Water lines intended for addition to the County owned water system will be
allowed to connect to the system if installed within the rights -of -way of a
dedicated street or if adequate permanent easements are provided. Sewer
lines shall also be installed within public street rights -of -way wherever
practical, but the County may accept sewer lines constructed on private
25
property (where the topography makes this necessary) if adequate permanent
easements are provided.
(d) To protect street surfaces, the County shall require that whenever
extensions of water or sewer lines are made to properties or within new
subdivisions, laterals be extended to all properties expected to tap onto
such water or sewer lines.
Section 30.5 Observation by County of Work Done by Others.
(a) All work on the extension of water or sewer lines not performed by
County forces (whether inside or outside the county), shall be subject to
observation by the County. If, in the judgment of the Director of Harnett
County Department of Public Utilities, or the Director's designee, there is a
demonstrated lack of competent supervision by a contractor, the administrator
may at his option:
1. Stop work until approved supervision is obtained and the work
is done in accordance with County specifications and requirements;
or
2. Provide observation by County personnel.
(b) Observation of a project by the County does not consist of or imply
supervision. The person requesting the extension is solely responsible
for ensuring that the project is completed according to State approved
plans and County specifications.
Section 30.6 Dedication of Water and Sewer Line Extensions.
(a) All water and sewer mains constructed and connected with the water and/or
sewer facilities of the County pursuant to this section shall be conveyed to
and become the property of the County upon completion and acceptance by
the County. Connection to the system and acceptance by the County shall
constitute dedication of a water or sewer main extension by the person
responsible for the extension.
(b) Following dedication as provided in Subsection (a), the County shall have
exclusive control of all water or sewer lines and shall be responsible for
26
their maintenance, repair and operation. However, the conveyor of
additions to the system shall guarantee the entire project against defective
material and workmanship for a period of twelve (12) months from the date
of acceptance of the project, including such incidental damages as may arise
from such claims.
(c) Design engineers must provide the County with a copy of the certification
to the State that the water or sewer mains are installed in accordance with
the plans approved by the appropriate State agency. The design engineer
shall also provide the County with one (1) set of reproducible as -built
drawings of all lines installed, and one set of drawings or electronic disk in
auto cad format.
Section 31. Delinquent Service Fees.
(a) Except as provided in subsection (e) of this section, when a consumer shall
have failed to pay his account (as specified in subsection c of this section)
by the due date set forth on his bill, a delinquent service fee shall be
imposed upon him and the amount of such fee shall be added to the balance
due.
(b) The amount of the delinquent service fee provided for in this section shall be
the sum of five ($5.00) dollars.
(c) A consumer shall have failed to pay his account when the full amount
charged to him for service supplied as stated on his bill has not been paid
over to and received by the County Department of Public Utilities by 5:00
p.m. on the due date set forth on the bill.
(d) The bill which shall be mailed to a consumer setting forth the charges due for
services supplied, shall state the due date, the amount of the bill if paid by the
due date, the amount of the bill if paid after the due date and shall further
state that if payment is not made by the due date that the delinquent service
fee will be charged.
(e) When a consumer has paid all bills rendered to him by the due date set forth
on each bill for twelve consecutive billing periods, should that consumer then
make a payment after a due date, the delinquent service fee shall be waived
for that period.
27
i�a.IPdN SS'+v iFVJ/i.r... ti' A- . .'.i'.:. ... .... ... .. Y.. i ♦...: .... -_ .. .. ..... i.
Section 32. Sprinkler Connections.
(a) Application for Full Service and Retrofitted Sprinkler Connections shall be
made in person at HCDPU. Forms to be used in application processing
shall be administratively prepared and matters otherwise associated with
service application shall be processed pursuant to and in accordance with
the rules, regulations, policies and /or procedures applicable to the service
district within which the premises to be served is located.
(b) The same schedule of connection or tap -on -fees applicable in the service
district within which the premises to be served is located shall apply with
respect to Full Service Sprinkler Connections.
(c) The following schedule of connection or tap -on -fees shall apply in all
service districts to the Retrofitted Sprinkler Connection:
2 inch connection
$1,300.00
1 1/2 inch connection
500.00
1 inch connection
350.00
3/4 inch connection
150.00
(d) The same schedule of rates, including the monthly minimum charge,
applicable in the service district within which the premises to be served is
located shall apply with respect to Full Service Sprinkler Connections. No
sewer charges shall be made to the Consumer based upon the water
consumption of the Full Service Sprinkler Connection.
(e) The same schedule of rates applicable in the service district within which
the premises to be served is located shall apply with respect to Retrofitted
Sprinkler Connections. No monthly minimum charge will be made except
during those months when the connection has been used. No sewer charges
shall be made to the Consumer based upon the water consumption of the
Retrofitted Sprinkler Connection.
(f) Except as specifically provided in this Section, all of the other rules,
regulations, policies and/or procedures applicable to the service district
within which the premises to be served is located shall be applicable with
respect to Full Service and Retrofitted Sprinkler Connections.
OT
Chapter Five
Testing Procedures
for Backflow
Preventers
F
Prior to initiating a test of
any backflow device, it is
recommended that the
following procedures be
followed:
1. Permission be obtained
from the owner, or his
representative, to shut down
the water supply. This is
necessary to insure that since
all testing is accomplished
under no -flow conditions, the
owner is aware that his water
supply will be temporarily
shut off while the testing is
being performed. Some
commercial and industrial
operations require constant
and uninterrupted water
supplies for cooling, boiler
feed, seal pump water, etc.
and water service
interruption cannot be
tolerated. The water supply
to hospitals and continuous
process industries cannot be
shut off without planned and
coordinated shut downs. The
request to shut down the
water supply is therefore a
necessary prerequisite to
protect the customer as well
as limit the liability of the
tester.
Concurrent with the
request for permission to
shut off the water, it is
advisable to point out to the
owner, or his representative,
that while the water is shut
off during the test period,
any inadvertent use of water
within the building will
reduce the water pressure to
zero. Backsiphonage could
result if unprotected
cross - connections existed
which would contaminate
the building water supply
system. In order to address
this situation, it is
recommended that the owner
caution the inhabitants of the
building not to use the water
until the backflow test is
completed and the water
pressure restored. Additional
options available to the
building owner would be the
installation of two backflow
devices in parallel that
would enable a protected
by -pass flow around the
device to be tested. Also, if
all water outlets are protected
within the building with
"fixture outlet protection"
backflow devices,
cross - connections would not
create a problem in the event
of potential back - siphonage
conditios occurring while
devices are tested, or for any
other reason.
2. Determine the type of
device to be tested i.e., double
check valve or reduced
pressure principle device.
3. Determine the flow
direction.(Reference
directional flow arrows or
wording provided by the
manufacturer on the device.)
6. Wait several moments pric
to hooking up the test kit
hoses when testing a reduced
pressure principle device. If
water exits the relief valve, in
all likelihood, the first check
valve is fouled and it is
impractical to proceed with
the testing until the valve is
serviced. This waiting period
is not necessary when testing
double check valves.
7. Hook up the test kit hoses
in the manner appropriate to
the device being tested and
the specific test being
performed.
Test personnel are
cautioned to be aware and
follow local municipal,
county, and state testing
requirements and guidelines
as may be dictated by local
authority. The following test
procedures are guidelines for
standard, generally
acceptable test procedures
but may be amended,
superceded, or modified by
local jurisdiction.
25
4. Number the test cocks,
bleed them of potential
debris, and assemble
appropriate test cock
adapters and bushings that
may be required.
8. Shut off the downstream
(number 2) shut -off valve.
(Ref. Item (1) above.)
.
1
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..�_.a°T.n x_ .r,�....,..t ....x =Y.ImY .�.,., .. a,- �.`YSff�.+�i"G�.,.'•�i'a... e..
25
Test Equipment
For field testing of reduced
pressure principle backflow
preventers and double check
valve assemblies, a
differential pressure test
gauge is utilized having a 0
to 15 psi range and a working
pressure of 500 psi.
Appropriate length of hoses
with necessary fittings
accompany the test gauge.
Several manufactured test
kits are commercially
available that incorporate the
differential gauge, hoses, and
fittings and are packaged for
ease of portability and come
with protective enclosures or
straps for hanging. Calibrated
water columns are
commercially available that
are portable and come with
carrying cases.
It is important that all test
equipment be periodically
C for calibration.
Pressure Vacuum Breaker
(Figure 38)
Field testing of a pressure
vacuum breaker involves
testing both the internal
spring loaded soft seated
check valve as well as testing
the spring loaded air inlet
valve. The testing must be
performed with the device
pressurized and the air inlet
closed. The number 2
shut -off valve must also be
closed and the air inlet valve
canopy removed.
Method 1
Using a differential pressure
gauge
Test 1 Test the internal check
valve for tightness of 1 psid
in the direction of flow.
1. With the valve body
under pressure, (number 2
shut -off valve closed and
number 1 shut -off valve
open) bleed test cocks
number 1 and number 2.
2. Hook up the high
pressure hose to number 1
test cock and the low
pressure hose to number
2 test cock.
26
A
Air inlet valve canopy
Loaded air inlet valve
r shut off valve .t valve
3. Bleed the high pressure
hose, and low pressure
hose, in that order, and
close the test kit needle
valves slowly.
4. Record the differential
pressure on the gauge. A
reading of 1 psid is
acceptable to insure a
tight check valve.
Test 2 Test the air inlet valve
for a breakaway of 1 psi.
1. Connect the high
pressure hose to test cock
number 2, and bleed the
high pressure hose.
2. Shut off number 1
shut -off valve.
Slowly open the bleed
valve of the test kit, and
observe and record the
psi when the air inlet
poppet opens. This
should be a minimum of
1 psi. Restore the valve to
normal service.
Method 2
Using a water column sight
tube and 90 degree elbow
fitting with bleed needle
Test 1 Test the internal check
valve for tightness of 1 psid
in the direction of flow.
1. Assemble sight tube to
test cock number 1. Open
test cock and fill the tube
to a minimum of 36
inches of water height.
2. Close number 1 shut -off
valve.
3. Open test cock number 2.
The air inlet valve should
open and discharge water
through number 2 test
cock.
4. Open number 1 test cock.
The sight tube level of
water should drop slowly
until it stabilizes. This
point should be a
minimum of 28 inches of
water column which
equals 1 psi.
Test 2 Test the air inlet valve
for a breakaway of 1 psi.
1. Assemble sight tube to
test cock number 2. Open
test cock number 2 and
fill the tube to a
minimum of 36 inches of
water height.
2. Close number 1 shut -off
valve.
3. Bleed water slowly from
the number 2 test cock
bleed needle and observe
the water column height
as it drops.
4. At the point when the air
inlet valve pops open,
record the height of the
water column. This point
should be a minimum of
28 inches of water
column which equals 1
psi.
Restore the valve to normal
service.
Reduced Pressure
Principle Backflow
Preventer
(Figure 39)
Field testing of a reduced
pressure principle backflow
preventer is accomplished
utilizing a differential
pressure gauge. The device is
tested for three optional
characteristics: i.e., (1) the first
check valve is tight and
maintains a minimum of 5
psi differential pressure, (2)
the second check valve is
tight against backpressure
and (3) the relief valve opens
at a minimum of 2 psi below
inlet supply pressure. Testing
is performed as follows:
Step 1 Test to insure that the
first check valve is tight and
maintains a minimum
pressure of 5 psi differential
pressure.
1. Verify that number 1
shut -off valve is open.
Close number 2 shut -off
valve. If there is no
drainage from the relief
valve it is assumed that
the first check is tight.
2. Close all test kit valves.
3. Connect the high
pressure hose to test cock
number 2.
4. Connect the low pressure
hose to test cock number
3.
5. Open test cocks number
2 and number 3.
6. Open high side bleed
needle valve on test kit
bleeding the air from the
high hose. Close the high
side bleed needle valve.
7. Open the low side bleed
needle valve on test kit
bleeding air from the low
hose. Close the low side
bleed needle valve. (i
Record the differential
ggauge pressure. It should
be a minimum of 5 oail
ti ��I � 1��' I ♦ 1��
High side hose ( K -\1 _ (Low side hose
° up the same as at the
ti conclusion of Step 2
above and then close test
FIGURE 39
UContr!
ypass hose
need
valves
Step 2 Test to insure that the
check valve number 2.) If
second check is tight against
the differential pressue
backpressure. (Figure 40)
gauge falls.off and water
1. Leaving the hoses hooked
comes out of the relief
up as in the conclusion
valve, the second check
is recorded as leaking. If
of Step 1 above, connect
the bypass hose to test
the differential pressure
a cock number 4.
gauge remains steady,
and no water comes out
2. Open test cock number 4,
of the relief valve, the
the high control needle
second check valve is
valve and the bypass
considered tight.
hose control needle valve 3.
the test kit. (This
To check the tightness of
supplies high pressure
su
number 2 shut -off valve,
water downstream of
leave the hoses hooked
E
cock number 2. This
stops the supply of any
high pressure water
downstream of check
valve number 2. If the
differential pressure
gauge reading holds
steady, the number 2
shut -off valve is recorded
as being tight. If the
differentia] pressure
gauge drops to zero, the
number 2 shut -off valve
is recorded as leaking.
With a leaking number
2 shut -off valve, the
device is, in most cases,
in a flow condition and
the previous readings
taken are invalid. Unless
a non -flow condition can
he achieved, either
through the operation of
an additional shut -off
downstream, or the use
of a compensating
temporary by -pass hose,
(Ref: Fig.40), accurate test
results will not be
achieved.
Step 3 To check that the
relief valve opens at a
minimum pressure of 2 psi
below inlet pressure.
1. With the hoses hooked
up the same as at the
conclusion of Step #2 (3)
above, slowly open up
the low control needle
valve on the test kit and
record the differential
pressure gauge reading at
the point when the water
initially starts to drip
from the relief valve
opening. This pressure
reading should not be
below 2 paid.
This completes the
standard field test for a
reduced pressure principle
backflow preventer. Before
removal of the test
equipment, the tester should
insure that he opens number
2 shut -off valve thereby
reestablishing flow. Also, the
test kit should be thoroughly
drained of all water to
prevent freezing by opening
all control needle valves and
bleed needle valves.
All test data should be
recorded on appropriate
forms. (Ref: sample Page 45)
Note: The steps outlined above
nlay vary in sequence depending
upon local regulations and /or
preferences.
27
Double Check Valve
Assemblies
(Figure 41)
Some field test procedures
for testing double check
valve assemblies require that
the number 1 shut -off valve
be closed to accomplish the
test. This procedure may
introduce debris such as rust
and tuberculin into the valve
that will impact against
check valve number 1 or
number 2 and compromise
the sealing quality. This
potential problem should be
considered prior to the
selection of the appropriate
test method.
Two test methods, one
requiring closing of the
number 1 shut -off valve, and
one without this requirement
are presented below:
Method 1
Utilizing the differential
pressure gauge and not
shutting off number 1
shut -off valve. (Figure 431
Step 1 checking check valve
number 1
1. Verify that the number 1
shut -off is open. Shut off
number 2 shut -off valve.
2. Connect the high hose to
test cock number 2.
3. Connect the low hose to
test cock number 3.
4. Open test cocks 2 and 3.
5. Open high side bleed
needle valve on test kit
bleeding the air from the
high hose. Close the high
side bleed needle valve.
6. Open low side bleed
needle valve on test kit
bleeding the air from the
low hose. Close the low
side bleed needle valve.
7. Record the differential
gauge pressrun reading. It
should be a minimum of
1 paid.
1 ti
�°�� lop �i �s
1A NetCtr CA
Bleed needle valves
High side hose T/� \ I Low side hose
Control needle
hose
FIGURE 41
° gauge holds steady, the
�ry number 2 shut -off valve is
recorded as being tight. if
the differential pressure
gauge drops to zero, the
number 2 shut -off valve
is recorded as leaking.
Step 2 Checking check valve The testing is performed as
number 2. follows:
1. Connect the high hose to 1. Connect the high hose to
test cock number 3. number 2 test cock.
2. Connect the low hose to
test cock number 4.
3. Open test cocks number
3 and 4.
4. Open high side bleed
needle valve on test kit
bleeding the air from the
high hose. Close the high
side bleed needle valve.
5. Open low side bleed
needle valve on test kit
bleeding the air from the
low hose. Close the low
side bleed needle valve.
6. Record the differential
gauge pressure reading. It
should be a minimum of
1 paid.
7. Disconnect the hoses.
To check tightness of
number 2 shut -off valve, both
the check valves must be
ti t and holding a minimum
0 1 paid. Also, little or no
fluctuation of inlet supply
pressure can be tolerated.
2.
Connect the low hose to
number 3 test cock.
3.
Connect the by -pass hose
to number 4 test cock.
4.
Open test cocks numbers
28
2, 3, and 4.
5.
Open high side bleed
needle valve on test kit
bleeding the air from the
high hose. Close the high
side bleed needle valve.
6.
Open low side bleed
needle valve on test kit
bleeding the air from the
low hose. Close the low
side bleed needle valve.
7.
The differential gauge
pressure should read
a
minimum of 1 psid.
B.
Open the high side
control needle valve and
the by -pass hose control
needle valve on the test
kit. (This supplies high
pressure water
downstream of check
valve number 2).
8. Disconnect the hoses.
9. Close test cock number 2.
(This stops the supply of
any high pressure water
downstream of number 2
check valve). If the
28
differential
pressure
With a leaking number 2
shut -off valve, the device is,
in most cases, in a flow
condition, and the previous
test readings taken are
invalid. Unless a non -flow
condition can be achieved,
either through the operation
of an additional shut -off
downstream, or the use of a
temporary compensating
by -pass hose, accurate test
results will not be achieved.
This completes the
standard field test for a
double check valve assembly.
Prior to removal of the test
equipment, the tester should
insure that he opens number
2 shut -off valve thereby
reestablishing flow. All to
data should be recorded on
appropriate forms and the
test kit drained of water.
0.
I
High side
FIGURE 42
hose
Kse
Method 2
Utilizing "Duplex Gauge" or
individual bourdon gauges, -
requires closing number 1
shut -off. (Figure 42)
Step 1 checking check valve
number i
1. Connect the high hose to
test cock number 2.
2. Connect the low hose to
test cock number 3.
3. Open test cocks number
2 and number 3.
4. Close number 2 shut -off
valve; then close number
1 shut -off valve.
5. By means of the high
side needle valve, lower
the pressure at test cock
number 2 about 2 psi
below the pressure at test
cock number 3. If this
small difference can be
maintained, then check
valve number 1 is
reported as "tight'.
Proceed to Step number
2. If the small difference
cannot be maintained,
proceed to Step number
3.
t]
mounted on a hoard
J
sigh side hose Low side hose
Step 2 checking check valve
number 2.
Proceed exactly the same
test procedure as in Step
number 1, except that the
high hose ?, connected to test
cock number 3 and the low
hose connected to test cock
number 4.
Step 3
2.
Open shut -off valve
number 1 to repressurize
the assembly.
Loosely attach the
by -pass hose to test cock
number 1, and bleed
from the gauge through
the by -pass hose by
opening the low side
needle valve to eliminate
trapped air. Close low
side needle valve.
Tighten by -pass hose.
Open test cock number 1.
3. Close number 1 shut -off
valve.
4. By loosening the low side
hose at test cock number
3, lower the pressure in
the assembly about So psi
below normal line
conditions.
5. Simultaneously open
both needle valves . If the
check valve is holding
tight the high pressure
gauge will begin to drop
while the low pressue
gauge will increase. Close
needle valves. If the
gauge shows that a small
(no more than 5 psi)
backpressure is created
and hold, then the check
valve is reported as tight.
If the check valve leaks, a
pressure differential is
not maintained as both
gauges tend to equalize
or move back towards
each other, then the
check valve is reported as
leaking. With both needle
valves open enough to
keep the needles on the
gauge stationary, the
amount of leakage is
visable as the discharge
from the upstream needle
valve.
-- - -
29
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